X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/59509217cd3c0411e218a5e0d65b0f5065348d72..2028c33ab5a39a12bd410ac953731a56ad6377ba:/src/richtext/richtextbuffer.cpp?ds=sidebyside

diff --git a/src/richtext/richtextbuffer.cpp b/src/richtext/richtextbuffer.cpp
index 78f53cf6ff..eccbc7dfb0 100644
--- a/src/richtext/richtextbuffer.cpp
+++ b/src/richtext/richtextbuffer.cpp
@@ -28,12 +28,14 @@
     #include "wx/module.h"
 #endif
 
+#include "wx/settings.h"
 #include "wx/filename.h"
 #include "wx/clipbrd.h"
 #include "wx/wfstream.h"
 #include "wx/mstream.h"
 #include "wx/sstream.h"
 #include "wx/textfile.h"
+#include "wx/hashmap.h"
 
 #include "wx/richtext/richtextctrl.h"
 #include "wx/richtext/richtextstyles.h"
@@ -43,6 +45,60 @@
 WX_DEFINE_LIST(wxRichTextObjectList)
 WX_DEFINE_LIST(wxRichTextLineList)
 
+// Switch off if the platform doesn't like it for some reason
+#define wxRICHTEXT_USE_OPTIMIZED_DRAWING 1
+
+// Use GetPartialTextExtents for platforms that support it natively
+#define wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS 1
+
+const wxChar wxRichTextLineBreakChar = (wxChar) 29;
+
+// Helpers for efficiency
+
+inline void wxCheckSetFont(wxDC& dc, const wxFont& font)
+{
+#if 0
+    const wxFont& font1 = dc.GetFont();
+    if (font1.IsOk() && font.IsOk())
+    {
+        if (font1.GetPointSize() == font.GetPointSize() &&
+            font1.GetFamily() == font.GetFamily() &&
+            font1.GetStyle() == font.GetStyle() &&
+            font1.GetWeight() == font.GetWeight() &&
+            font1.GetUnderlined() == font.GetUnderlined() &&
+            font1.GetFamily() == font.GetFamily() &&
+            font1.GetFaceName() == font.GetFaceName())
+            return;
+    }
+#endif
+    dc.SetFont(font);
+}
+
+inline void wxCheckSetPen(wxDC& dc, const wxPen& pen)
+{
+    const wxPen& pen1 = dc.GetPen();
+    if (pen1.IsOk() && pen.IsOk())
+    {
+        if (pen1.GetWidth() == pen.GetWidth() &&
+            pen1.GetStyle() == pen.GetStyle() &&
+            pen1.GetColour() == pen.GetColour())
+            return;
+    }
+    dc.SetPen(pen);
+}
+
+inline void wxCheckSetBrush(wxDC& dc, const wxBrush& brush)
+{
+    const wxBrush& brush1 = dc.GetBrush();
+    if (brush1.IsOk() && brush.IsOk())
+    {
+        if (brush1.GetStyle() == brush.GetStyle() &&
+            brush1.GetColour() == brush.GetColour())
+            return;
+    }
+    dc.SetBrush(brush);
+}
+
 /*!
  * wxRichTextObject
  * This is the base for drawable objects.
@@ -82,12 +138,6 @@ void wxRichTextObject::Copy(const wxRichTextObject& obj)
     m_range = obj.m_range;
     m_attributes = obj.m_attributes;
     m_descent = obj.m_descent;
-/*
-    if (!m_attributes.GetFont().Ok())
-        wxLogDebug(wxT("No font!"));
-    if (!obj.m_attributes.GetFont().Ok())
-        wxLogDebug(wxT("Parent has no font!"));
-*/
 }
 
 void wxRichTextObject::SetMargins(int margin)
@@ -103,11 +153,21 @@ void wxRichTextObject::SetMargins(int leftMargin, int rightMargin, int topMargin
     m_bottomMargin = bottomMargin;
 }
 
-// Convert units in tends of a millimetre to device units
+// Convert units in tenths of a millimetre to device units
 int wxRichTextObject::ConvertTenthsMMToPixels(wxDC& dc, int units)
 {
-    int ppi = dc.GetPPI().x;
+    int p = ConvertTenthsMMToPixels(dc.GetPPI().x, units);
+
+    // Unscale
+    wxRichTextBuffer* buffer = GetBuffer();
+    if (buffer)
+        p = (int) ((double)p / buffer->GetScale());
+    return p;
+}
 
+// Convert units in tenths of a millimetre to device units
+int wxRichTextObject::ConvertTenthsMMToPixels(int ppi, int units)
+{
     // There are ppi pixels in 254.1 "1/10 mm"
 
     double pixels = ((double) units * (double)ppi) / 254.1;
@@ -123,6 +183,14 @@ void wxRichTextObject::Dump(wxTextOutputStream& stream)
     stream << wxString::Format(wxT("Text colour: %d,%d,%d."), (int) m_attributes.GetTextColour().Red(), (int) m_attributes.GetTextColour().Green(), (int) m_attributes.GetTextColour().Blue()) << wxT("\n");
 }
 
+/// Gets the containing buffer
+wxRichTextBuffer* wxRichTextObject::GetBuffer() const
+{
+    const wxRichTextObject* obj = this;
+    while (obj && !obj->IsKindOf(CLASSINFO(wxRichTextBuffer)))
+        obj = obj->GetParent();
+    return wxDynamicCast(obj, wxRichTextBuffer);
+}
 
 /*!
  * wxRichTextCompositeObject
@@ -247,7 +315,8 @@ int wxRichTextCompositeObject::HitTest(wxDC& dc, const wxPoint& pt, long& textPo
         node = node->GetNext();
     }
 
-    return wxRICHTEXT_HITTEST_NONE;
+    textPosition = GetRange().GetEnd()-1;
+    return wxRICHTEXT_HITTEST_AFTER|wxRICHTEXT_HITTEST_OUTSIDE;
 }
 
 /// Finds the absolute position and row height for the given character position
@@ -359,26 +428,31 @@ wxString wxRichTextCompositeObject::GetTextForRange(const wxRichTextRange& range
 }
 
 /// Recursively merge all pieces that can be merged.
-bool wxRichTextCompositeObject::Defragment()
+bool wxRichTextCompositeObject::Defragment(const wxRichTextRange& range)
 {
     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
     while (node)
     {
         wxRichTextObject* child = node->GetData();
-        wxRichTextCompositeObject* composite = wxDynamicCast(child, wxRichTextCompositeObject);
-        if (composite)
-            composite->Defragment();
-
-        if (node->GetNext())
+        if (range == wxRICHTEXT_ALL || !child->GetRange().IsOutside(range))
         {
-            wxRichTextObject* nextChild = node->GetNext()->GetData();
-            if (child->CanMerge(nextChild) && child->Merge(nextChild))
+            wxRichTextCompositeObject* composite = wxDynamicCast(child, wxRichTextCompositeObject);
+            if (composite)
+                composite->Defragment();
+
+            if (node->GetNext())
             {
-                nextChild->Dereference();
-                m_children.Erase(node->GetNext());
+                wxRichTextObject* nextChild = node->GetNext()->GetData();
+                if (child->CanMerge(nextChild) && child->Merge(nextChild))
+                {
+                    nextChild->Dereference();
+                    m_children.Erase(node->GetNext());
 
-                // Don't set node -- we'll see if we can merge again with the next
-                // child.
+                    // Don't set node -- we'll see if we can merge again with the next
+                    // child.
+                }
+                else
+                    node = node->GetNext();
             }
             else
                 node = node->GetNext();
@@ -447,13 +521,13 @@ bool wxRichTextBox::Layout(wxDC& dc, const wxRect& rect, int style)
 }
 
 /// Get/set the size for the given range. Assume only has one child.
-bool wxRichTextBox::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& descent, wxDC& dc, int flags, wxPoint position) const
+bool wxRichTextBox::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& descent, wxDC& dc, int flags, wxPoint position, wxArrayInt* partialExtents) const
 {
     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
     if (node)
     {
         wxRichTextObject* child = node->GetData();
-        return child->GetRangeSize(range, size, descent, dc, flags, position);
+        return child->GetRangeSize(range, size, descent, dc, flags, position, partialExtents);
     }
     else
         return false;
@@ -508,12 +582,17 @@ bool wxRichTextParagraphLayoutBox::Draw(wxDC& dc, const wxRichTextRange& range,
         {
             wxRect childRect(child->GetPosition(), child->GetCachedSize());
 
-            if (childRect.GetTop() > rect.GetBottom() || childRect.GetBottom() < rect.GetTop())
+            if (((style & wxRICHTEXT_DRAW_IGNORE_CACHE) == 0) && childRect.GetTop() > rect.GetBottom())
+            {
+                // Stop drawing
+                break;
+            }
+            else if (((style & wxRICHTEXT_DRAW_IGNORE_CACHE) == 0) && childRect.GetBottom() < rect.GetTop())
             {
                 // Skip
             }
             else
-                child->Draw(dc, child->GetRange(), selectionRange, childRect, descent, style);
+                child->Draw(dc, range, selectionRange, rect, descent, style);
         }
 
         node = node->GetNext();
@@ -528,7 +607,10 @@ bool wxRichTextParagraphLayoutBox::Layout(wxDC& dc, const wxRect& rect, int styl
     bool formatRect = (style & wxRICHTEXT_LAYOUT_SPECIFIED_RECT) == wxRICHTEXT_LAYOUT_SPECIFIED_RECT;
 
     // If only laying out a specific area, the passed rect has a different meaning:
-    // the visible part of the buffer.
+    // the visible part of the buffer. This is used in wxRichTextCtrl::OnSize,
+    // so that during a size, only the visible part will be relaid out, or
+    // it would take too long causing flicker. As an approximation, we assume that
+    // everything up to the start of the visible area is laid out correctly.
     if (formatRect)
     {
         availableSpace = wxRect(0 + m_leftMargin,
@@ -568,7 +650,7 @@ bool wxRichTextParagraphLayoutBox::Layout(wxDC& dc, const wxRect& rect, int styl
     if (invalidRange == wxRICHTEXT_ALL)
         layoutAll = true;
     else    // If we know what range is affected, start laying out from that point on.
-        if (invalidRange.GetStart() > GetRange().GetStart())
+        if (invalidRange.GetStart() >= GetRange().GetStart())
     {
         wxRichTextParagraph* firstParagraph = GetParagraphAtPosition(invalidRange.GetStart());
         if (firstParagraph)
@@ -577,10 +659,13 @@ bool wxRichTextParagraphLayoutBox::Layout(wxDC& dc, const wxRect& rect, int styl
             wxRichTextObjectList::compatibility_iterator previousNode;
             if ( firstNode )
                 previousNode = firstNode->GetPrevious();
-            if (firstNode && previousNode)
+            if (firstNode)
             {
-                wxRichTextParagraph* previousParagraph = wxDynamicCast(previousNode->GetData(), wxRichTextParagraph);
-                availableSpace.y = previousParagraph->GetPosition().y + previousParagraph->GetCachedSize().y;
+                if (previousNode)
+                {
+                    wxRichTextParagraph* previousParagraph = wxDynamicCast(previousNode->GetData(), wxRichTextParagraph);
+                    availableSpace.y = previousParagraph->GetPosition().y + previousParagraph->GetCachedSize().y;
+                }
 
                 // Now we're going to start iterating from the first affected paragraph.
                 node = firstNode;
@@ -598,7 +683,7 @@ bool wxRichTextParagraphLayoutBox::Layout(wxDC& dc, const wxRect& rect, int styl
         // Assume this box only contains paragraphs
 
         wxRichTextParagraph* child = wxDynamicCast(node->GetData(), wxRichTextParagraph);
-        wxCHECK_MSG( child, false, _T("Unknown object in layout") );
+        wxCHECK_MSG( child, false, wxT("Unknown object in layout") );
 
         // TODO: what if the child hasn't been laid out (e.g. involved in Undo) but still has 'old' lines
         if ( !forceQuickLayout &&
@@ -663,10 +748,11 @@ void wxRichTextParagraphLayoutBox::Copy(const wxRichTextParagraphLayoutBox& obj)
     wxRichTextBox::Copy(obj);
 
     m_partialParagraph = obj.m_partialParagraph;
+    m_defaultAttributes = obj.m_defaultAttributes;
 }
 
 /// Get/set the size for the given range.
-bool wxRichTextParagraphLayoutBox::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& descent, wxDC& dc, int flags, wxPoint position) const
+bool wxRichTextParagraphLayoutBox::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& descent, wxDC& dc, int flags, wxPoint position, wxArrayInt* WXUNUSED(partialExtents)) const
 {
     wxSize sz;
 
@@ -774,25 +860,29 @@ wxRichTextLine* wxRichTextParagraphLayoutBox::GetLineAtPosition(long pos, bool c
     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
     while (node)
     {
-        // child is a paragraph
-        wxRichTextParagraph* child = wxDynamicCast(node->GetData(), wxRichTextParagraph);
-        wxASSERT (child != NULL);
-
-        wxRichTextLineList::compatibility_iterator node2 = child->GetLines().GetFirst();
-        while (node2)
+        wxRichTextObject* obj = (wxRichTextObject*) node->GetData();
+        if (obj->GetRange().Contains(pos))
         {
-            wxRichTextLine* line = node2->GetData();
+            // child is a paragraph
+            wxRichTextParagraph* child = wxDynamicCast(obj, wxRichTextParagraph);
+            wxASSERT (child != NULL);
+
+            wxRichTextLineList::compatibility_iterator node2 = child->GetLines().GetFirst();
+            while (node2)
+            {
+                wxRichTextLine* line = node2->GetData();
 
-            wxRichTextRange range = line->GetAbsoluteRange();
+                wxRichTextRange range = line->GetAbsoluteRange();
 
-            if (range.Contains(pos) ||
+                if (range.Contains(pos) ||
 
-                // If the position is end-of-paragraph, then return the last line of
-                // of the paragraph.
-                (range.GetEnd() == child->GetRange().GetEnd()-1) && (pos == child->GetRange().GetEnd()))
-                return line;
+                    // If the position is end-of-paragraph, then return the last line of
+                    // of the paragraph.
+                    ((range.GetEnd() == child->GetRange().GetEnd()-1) && (pos == child->GetRange().GetEnd())))
+                    return line;
 
-            node2 = node2->GetNext();
+                node2 = node2->GetNext();
+            }
         }
 
         node = node->GetNext();
@@ -876,23 +966,30 @@ wxSize wxRichTextParagraphLayoutBox::GetLineSizeAtPosition(long pos, bool caretP
 
 
 /// Convenience function to add a paragraph of text
-wxRichTextRange wxRichTextParagraphLayoutBox::AddParagraph(const wxString& text, wxTextAttrEx* paraStyle)
+wxRichTextRange wxRichTextParagraphLayoutBox::AddParagraph(const wxString& text, wxTextAttr* paraStyle)
 {
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
     // Don't use the base style, just the default style, and the base style will
-    // be combined at display time
-    wxTextAttrEx style(GetDefaultStyle());
-#else
-    wxTextAttrEx style(GetAttributes());
+    // be combined at display time.
+    // Divide into paragraph and character styles.
 
-    // Apply default style. If the style has no attributes set,
-    // then the attributes will remain the 'basic style' (i.e. the
-    // layout box's style).
-    wxRichTextApplyStyle(style, GetDefaultStyle());
-#endif
-    wxRichTextParagraph* para = new wxRichTextParagraph(text, this, & style);
-    if (paraStyle)
-        para->SetAttributes(*paraStyle);
+    wxTextAttr defaultCharStyle;
+    wxTextAttr defaultParaStyle;
+
+    // If the default style is a named paragraph style, don't apply any character formatting
+    // to the initial text string.
+    if (GetDefaultStyle().HasParagraphStyleName() && GetStyleSheet())
+    {
+        wxRichTextParagraphStyleDefinition* def = GetStyleSheet()->FindParagraphStyle(GetDefaultStyle().GetParagraphStyleName());
+        if (def)
+            defaultParaStyle = def->GetStyleMergedWithBase(GetStyleSheet());
+    }
+    else
+        wxRichTextSplitParaCharStyles(GetDefaultStyle(), defaultParaStyle, defaultCharStyle);
+
+    wxTextAttr* pStyle = paraStyle ? paraStyle : (wxTextAttr*) & defaultParaStyle;
+    wxTextAttr* cStyle = & defaultCharStyle;
+
+    wxRichTextParagraph* para = new wxRichTextParagraph(text, this, pStyle, cStyle);
 
     AppendChild(para);
 
@@ -903,26 +1000,28 @@ wxRichTextRange wxRichTextParagraphLayoutBox::AddParagraph(const wxString& text,
 }
 
 /// Adds multiple paragraphs, based on newlines.
-wxRichTextRange wxRichTextParagraphLayoutBox::AddParagraphs(const wxString& text, wxTextAttrEx* paraStyle)
+wxRichTextRange wxRichTextParagraphLayoutBox::AddParagraphs(const wxString& text, wxTextAttr* paraStyle)
 {
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
     // Don't use the base style, just the default style, and the base style will
-    // be combined at display time
-    wxTextAttrEx style(GetDefaultStyle());
-#else
-    wxTextAttrEx style(GetAttributes());
+    // be combined at display time.
+    // Divide into paragraph and character styles.
 
-    //wxLogDebug("Initial style = %s", style.GetFont().GetFaceName());
-    //wxLogDebug("Initial size = %d", style.GetFont().GetPointSize());
+    wxTextAttr defaultCharStyle;
+    wxTextAttr defaultParaStyle;
 
-    // Apply default style. If the style has no attributes set,
-    // then the attributes will remain the 'basic style' (i.e. the
-    // layout box's style).
-    wxRichTextApplyStyle(style, GetDefaultStyle());
+    // If the default style is a named paragraph style, don't apply any character formatting
+    // to the initial text string.
+    if (GetDefaultStyle().HasParagraphStyleName() && GetStyleSheet())
+    {
+        wxRichTextParagraphStyleDefinition* def = GetStyleSheet()->FindParagraphStyle(GetDefaultStyle().GetParagraphStyleName());
+        if (def)
+            defaultParaStyle = def->GetStyleMergedWithBase(GetStyleSheet());
+    }
+    else
+        wxRichTextSplitParaCharStyles(GetDefaultStyle(), defaultParaStyle, defaultCharStyle);
 
-    //wxLogDebug("Style after applying default style = %s", style.GetFont().GetFaceName());
-    //wxLogDebug("Size after applying default style = %d", style.GetFont().GetPointSize());
-#endif
+    wxTextAttr* pStyle = paraStyle ? paraStyle : (wxTextAttr*) & defaultParaStyle;
+    wxTextAttr* cStyle = & defaultCharStyle;
 
     wxRichTextParagraph* firstPara = NULL;
     wxRichTextParagraph* lastPara = NULL;
@@ -932,9 +1031,7 @@ wxRichTextRange wxRichTextParagraphLayoutBox::AddParagraphs(const wxString& text
     size_t i = 0;
     size_t len = text.length();
     wxString line;
-    wxRichTextParagraph* para = new wxRichTextParagraph(wxT(""), this, & style);
-    if (paraStyle)
-        para->SetAttributes(*paraStyle);
+    wxRichTextParagraph* para = new wxRichTextParagraph(wxEmptyString, this, pStyle, cStyle);
 
     AppendChild(para);
 
@@ -946,20 +1043,18 @@ wxRichTextRange wxRichTextParagraphLayoutBox::AddParagraphs(const wxString& text
         wxChar ch = text[i];
         if (ch == wxT('\n') || ch == wxT('\r'))
         {
-            wxRichTextPlainText* plainText = (wxRichTextPlainText*) para->GetChildren().GetFirst()->GetData();
-            plainText->SetText(line);
-
-            para = new wxRichTextParagraph(wxT(""), this, & style);
-            if (paraStyle)
-                para->SetAttributes(*paraStyle);
+            if (i != (len-1))
+            {
+                wxRichTextPlainText* plainText = (wxRichTextPlainText*) para->GetChildren().GetFirst()->GetData();
+                plainText->SetText(line);
 
-            AppendChild(para);
+                para = new wxRichTextParagraph(wxEmptyString, this, pStyle, cStyle);
 
-            //if (!firstPara)
-            //    firstPara = para;
+                AppendChild(para);
 
-            lastPara = para;
-            line = wxEmptyString;
+                lastPara = para;
+                line = wxEmptyString;
+            }
         }
         else
             line += ch;
@@ -973,18 +1068,6 @@ wxRichTextRange wxRichTextParagraphLayoutBox::AddParagraphs(const wxString& text
         plainText->SetText(line);
     }
 
-/*
-    if (firstPara)
-        range.SetStart(firstPara->GetRange().GetStart());
-    else if (lastPara)
-        range.SetStart(lastPara->GetRange().GetStart());
-
-    if (lastPara)
-        range.SetEnd(lastPara->GetRange().GetEnd());
-    else if (firstPara)
-        range.SetEnd(firstPara->GetRange().GetEnd());
-*/
-
     UpdateRanges();
 
     SetDirty(false);
@@ -993,27 +1076,32 @@ wxRichTextRange wxRichTextParagraphLayoutBox::AddParagraphs(const wxString& text
 }
 
 /// Convenience function to add an image
-wxRichTextRange wxRichTextParagraphLayoutBox::AddImage(const wxImage& image, wxTextAttrEx* paraStyle)
+wxRichTextRange wxRichTextParagraphLayoutBox::AddImage(const wxImage& image, wxTextAttr* paraStyle)
 {
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
     // Don't use the base style, just the default style, and the base style will
-    // be combined at display time
-    wxTextAttrEx style(GetDefaultStyle());
-#else
-    wxTextAttrEx style(GetAttributes());
+    // be combined at display time.
+    // Divide into paragraph and character styles.
 
-    // Apply default style. If the style has no attributes set,
-    // then the attributes will remain the 'basic style' (i.e. the
-    // layout box's style).
-    wxRichTextApplyStyle(style, GetDefaultStyle());
-#endif
+    wxTextAttr defaultCharStyle;
+    wxTextAttr defaultParaStyle;
 
-    wxRichTextParagraph* para = new wxRichTextParagraph(this, & style);
-    AppendChild(para);
-    para->AppendChild(new wxRichTextImage(image, this));
+    // If the default style is a named paragraph style, don't apply any character formatting
+    // to the initial text string.
+    if (GetDefaultStyle().HasParagraphStyleName() && GetStyleSheet())
+    {
+        wxRichTextParagraphStyleDefinition* def = GetStyleSheet()->FindParagraphStyle(GetDefaultStyle().GetParagraphStyleName());
+        if (def)
+            defaultParaStyle = def->GetStyleMergedWithBase(GetStyleSheet());
+    }
+    else
+        wxRichTextSplitParaCharStyles(GetDefaultStyle(), defaultParaStyle, defaultCharStyle);
 
-    if (paraStyle)
-        para->SetAttributes(*paraStyle);
+    wxTextAttr* pStyle = paraStyle ? paraStyle : (wxTextAttr*) & defaultParaStyle;
+    wxTextAttr* cStyle = & defaultCharStyle;
+
+    wxRichTextParagraph* para = new wxRichTextParagraph(this, pStyle);
+    AppendChild(para);
+    para->AppendChild(new wxRichTextImage(image, this, cStyle));
 
     UpdateRanges();
     SetDirty(true);
@@ -1025,8 +1113,6 @@ wxRichTextRange wxRichTextParagraphLayoutBox::AddImage(const wxImage& image, wxT
 /// Insert fragment into this box at the given position. If partialParagraph is true,
 /// it is assumed that the last (or only) paragraph is just a piece of data with no paragraph
 /// marker.
-/// TODO: if fragment is inserted inside styled fragment, must apply that style to
-/// to the data (if it has a default style, anyway).
 
 bool wxRichTextParagraphLayoutBox::InsertFragment(long position, wxRichTextParagraphLayoutBox& fragment)
 {
@@ -1036,6 +1122,8 @@ bool wxRichTextParagraphLayoutBox::InsertFragment(long position, wxRichTextParag
     wxRichTextParagraph* para = GetParagraphAtPosition(position);
     if (para)
     {
+        wxTextAttrEx originalAttr = para->GetAttributes();
+
         wxRichTextObjectList::compatibility_iterator node = m_children.Find(para);
 
         // Now split at this position, returning the object to insert the new
@@ -1103,7 +1191,19 @@ bool wxRichTextParagraphLayoutBox::InsertFragment(long position, wxRichTextParag
             wxRichTextParagraph* firstPara = wxDynamicCast(firstParaNode->GetData(), wxRichTextParagraph);
             wxASSERT(firstPara != NULL);
 
+            if (!(fragment.GetAttributes().GetFlags() & wxTEXT_ATTR_KEEP_FIRST_PARA_STYLE))
+                para->SetAttributes(firstPara->GetAttributes());
+
+            // Save empty paragraph attributes for appending later
+            // These are character attributes deliberately set for a new paragraph. Without this,
+            // we couldn't pass default attributes when appending a new paragraph.
+            wxTextAttrEx emptyParagraphAttributes;
+
             wxRichTextObjectList::compatibility_iterator objectNode = firstPara->GetChildren().GetFirst();
+
+            if (objectNode && firstPara->GetChildren().GetCount() == 1 && objectNode->GetData()->IsEmpty())
+                emptyParagraphAttributes = objectNode->GetData()->GetAttributes();
+
             while (objectNode)
             {
                 wxRichTextObject* newObj = objectNode->GetData()->Clone();
@@ -1123,53 +1223,57 @@ bool wxRichTextParagraphLayoutBox::InsertFragment(long position, wxRichTextParag
             wxRichTextObjectList::compatibility_iterator i = fragment.GetChildren().GetFirst()->GetNext();
             wxRichTextParagraph* finalPara = para;
 
+            bool needExtraPara = (!i || !fragment.GetPartialParagraph());
+
             // If there was only one paragraph, we need to insert a new one.
-            if (!i)
+            while (i)
             {
-                finalPara = new wxRichTextParagraph;
+                wxRichTextParagraph* para = wxDynamicCast(i->GetData(), wxRichTextParagraph);
+                wxASSERT( para != NULL );
 
-                // TODO: These attributes should come from the subsequent paragraph
-                // when originally deleted, since the subsequent para takes on
-                // the previous para's attributes.
-                finalPara->SetAttributes(firstPara->GetAttributes());
+                finalPara = (wxRichTextParagraph*) para->Clone();
 
                 if (nextParagraph)
                     InsertChild(finalPara, nextParagraph);
                 else
                     AppendChild(finalPara);
+
+                i = i->GetNext();
             }
-            else while (i)
-            {
-                wxRichTextParagraph* para = wxDynamicCast(i->GetData(), wxRichTextParagraph);
-                wxASSERT( para != NULL );
 
-                finalPara = (wxRichTextParagraph*) para->Clone();
+            // If there was only one paragraph, or we have full paragraphs in our fragment,
+            // we need to insert a new one.
+            if (needExtraPara)
+            {
+                finalPara = new wxRichTextParagraph;
 
                 if (nextParagraph)
                     InsertChild(finalPara, nextParagraph);
                 else
                     AppendChild(finalPara);
-
-                i = i->GetNext();
             }
 
             // 4. Add back the remaining content.
             if (finalPara)
             {
-                finalPara->MoveFromList(savedObjects);
+                if (nextObject)
+                    finalPara->MoveFromList(savedObjects);
 
                 // Ensure there's at least one object
                 if (finalPara->GetChildCount() == 0)
                 {
                     wxRichTextPlainText* text = new wxRichTextPlainText(wxEmptyString);
-#if !wxRICHTEXT_USE_DYNAMIC_STYLES
-                    text->SetAttributes(finalPara->GetAttributes());
-#endif
+                    text->SetAttributes(emptyParagraphAttributes);
 
                     finalPara->AppendChild(text);
                 }
             }
 
+            if ((fragment.GetAttributes().GetFlags() & wxTEXT_ATTR_KEEP_FIRST_PARA_STYLE) && firstPara)
+                finalPara->SetAttributes(firstPara->GetAttributes());
+            else if (finalPara && finalPara != para)
+                finalPara->SetAttributes(originalAttr);
+
             return true;
         }
     }
@@ -1353,6 +1457,7 @@ bool wxRichTextParagraphLayoutBox::DeleteRange(const wxRichTextRange& range)
 {
     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
 
+    wxRichTextParagraph* firstPara = NULL;
     while (node)
     {
         wxRichTextParagraph* obj = wxDynamicCast(node->GetData(), wxRichTextParagraph);
@@ -1367,58 +1472,82 @@ bool wxRichTextParagraphLayoutBox::DeleteRange(const wxRichTextRange& range)
             // Deletes the content of this object within the given range
             obj->DeleteRange(range);
 
+            wxRichTextRange thisRange = obj->GetRange();
+            wxTextAttrEx thisAttr = obj->GetAttributes();
+
             // If the whole paragraph is within the range to delete,
             // delete the whole thing.
-            if (range.GetStart() <= obj->GetRange().GetStart() && range.GetEnd() >= obj->GetRange().GetEnd())
+            if (range.GetStart() <= thisRange.GetStart() && range.GetEnd() >= thisRange.GetEnd())
             {
                 // Delete the whole object
                 RemoveChild(obj, true);
+                obj = NULL;
             }
+            else if (!firstPara)
+                firstPara = obj;
+
             // If the range includes the paragraph end, we need to join this
             // and the next paragraph.
-            else if (range.Contains(obj->GetRange().GetEnd()))
+            if (range.GetEnd() <= thisRange.GetEnd())
             {
                 // We need to move the objects from the next paragraph
                 // to this paragraph
 
-                if (next)
+                wxRichTextParagraph* nextParagraph = NULL;
+                if ((range.GetEnd() < thisRange.GetEnd()) && obj)
+                    nextParagraph = obj;
+                else
                 {
-                    wxRichTextParagraph* nextParagraph = wxDynamicCast(next->GetData(), wxRichTextParagraph);
-                    next = next->GetNext();
-                    if (nextParagraph)
-                    {
-                        // Delete the stuff we need to delete
-                        nextParagraph->DeleteRange(range);
+                    // We're ending at the end of the paragraph, so merge the _next_ paragraph.
+                    if (next)
+                        nextParagraph = wxDynamicCast(next->GetData(), wxRichTextParagraph);
+                }
 
-                        // Move the objects to the previous para
-                        wxRichTextObjectList::compatibility_iterator node1 = nextParagraph->GetChildren().GetFirst();
+                bool applyFinalParagraphStyle = firstPara && nextParagraph && nextParagraph != firstPara;
 
-                        while (node1)
-                        {
-                            wxRichTextObject* obj1 = node1->GetData();
+                wxTextAttrEx nextParaAttr;
+                if (applyFinalParagraphStyle)
+                {
+                    // Special case when deleting the end of a paragraph - use _this_ paragraph's style,
+                    // not the next one.
+                    if (range.GetStart() == range.GetEnd() && range.GetStart() == thisRange.GetEnd())
+                        nextParaAttr = thisAttr;
+                    else
+                        nextParaAttr = nextParagraph->GetAttributes();
+                }
 
-                            // If the object is empty, optimise it out
-                            if (obj1->IsEmpty())
-                            {
-                                delete obj1;
-                            }
-                            else
-                            {
-                                obj->AppendChild(obj1);
-                            }
+                if (firstPara && nextParagraph && firstPara != nextParagraph)
+                {
+                    // Move the objects to the previous para
+                    wxRichTextObjectList::compatibility_iterator node1 = nextParagraph->GetChildren().GetFirst();
 
-                            wxRichTextObjectList::compatibility_iterator next1 = node1->GetNext();
-                            nextParagraph->GetChildren().Erase(node1);
+                    while (node1)
+                    {
+                        wxRichTextObject* obj1 = node1->GetData();
 
-                            node1 = next1;
-                        }
+                        firstPara->AppendChild(obj1);
 
-                        // Delete the paragraph
-                        RemoveChild(nextParagraph, true);
+                        wxRichTextObjectList::compatibility_iterator next1 = node1->GetNext();
+                        nextParagraph->GetChildren().Erase(node1);
 
+                        node1 = next1;
                     }
+
+                    // Delete the paragraph
+                    RemoveChild(nextParagraph, true);
+                }
+
+                // Avoid empty paragraphs
+                if (firstPara && firstPara->GetChildren().GetCount() == 0)
+                {
+                    wxRichTextPlainText* text = new wxRichTextPlainText(wxEmptyString);
+                    firstPara->AppendChild(text);
                 }
 
+                if (applyFinalParagraphStyle)
+                    firstPara->SetAttributes(nextParaAttr);
+
+                return true;
             }
         }
 
@@ -1439,8 +1568,6 @@ wxString wxRichTextParagraphLayoutBox::GetTextForRange(const wxRichTextRange& ra
         wxRichTextObject* child = node->GetData();
         if (!child->GetRange().IsOutside(range))
         {
-//            if (lineCount > 0)
-//                text += wxT("\n");
             wxRichTextRange childRange = range;
             childRange.LimitTo(child->GetRange());
 
@@ -1448,7 +1575,7 @@ wxString wxRichTextParagraphLayoutBox::GetTextForRange(const wxRichTextRange& ra
 
             text += childText;
 
-            if (childRange.GetEnd() == child->GetRange().GetEnd())
+            if ((childRange.GetEnd() == child->GetRange().GetEnd()) && node->GetNext())
                 text += wxT("\n");
 
             lineCount ++;
@@ -1556,7 +1683,7 @@ wxRichTextObject* wxRichTextParagraphLayoutBox::GetLeafObjectAtPosition(long pos
 }
 
 /// Set character or paragraph text attributes: apply character styles only to immediate text nodes
-bool wxRichTextParagraphLayoutBox::SetStyle(const wxRichTextRange& range, const wxRichTextAttr& style, int flags)
+bool wxRichTextParagraphLayoutBox::SetStyle(const wxRichTextRange& range, const wxTextAttr& style, int flags)
 {
     bool characterStyle = false;
     bool paragraphStyle = false;
@@ -1570,11 +1697,30 @@ bool wxRichTextParagraphLayoutBox::SetStyle(const wxRichTextRange& range, const
     bool applyMinimal = ((flags & wxRICHTEXT_SETSTYLE_OPTIMIZE) != 0);
     bool parasOnly = ((flags & wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY) != 0);
     bool charactersOnly = ((flags & wxRICHTEXT_SETSTYLE_CHARACTERS_ONLY) != 0);
+    bool resetExistingStyle = ((flags & wxRICHTEXT_SETSTYLE_RESET) != 0);
+    bool removeStyle = ((flags & wxRICHTEXT_SETSTYLE_REMOVE) != 0);
+
+    // Apply paragraph style first, if any
+    wxTextAttr wholeStyle(style);
+
+    if (!removeStyle && wholeStyle.HasParagraphStyleName() && GetStyleSheet())
+    {
+        wxRichTextParagraphStyleDefinition* def = GetStyleSheet()->FindParagraphStyle(wholeStyle.GetParagraphStyleName());
+        if (def)
+            wxRichTextApplyStyle(wholeStyle, def->GetStyleMergedWithBase(GetStyleSheet()));
+    }
 
     // Limit the attributes to be set to the content to only character attributes.
-    wxRichTextAttr characterAttributes(style);
+    wxTextAttr characterAttributes(wholeStyle);
     characterAttributes.SetFlags(characterAttributes.GetFlags() & (wxTEXT_ATTR_CHARACTER));
 
+    if (!removeStyle && characterAttributes.HasCharacterStyleName() && GetStyleSheet())
+    {
+        wxRichTextCharacterStyleDefinition* def = GetStyleSheet()->FindCharacterStyle(characterAttributes.GetCharacterStyleName());
+        if (def)
+            wxRichTextApplyStyle(characterAttributes, def->GetStyleMergedWithBase(GetStyleSheet()));
+    }
+
     // If we are associated with a control, make undoable; otherwise, apply immediately
     // to the data.
 
@@ -1618,21 +1764,32 @@ bool wxRichTextParagraphLayoutBox::SetStyle(const wxRichTextRange& range, const
                 else
                     newPara = para;
 
-                if (paragraphStyle && !charactersOnly)
+                // If we're specifying paragraphs only, then we really mean character formatting
+                // to be included in the paragraph style
+                if ((paragraphStyle || parasOnly) && !charactersOnly)
                 {
-                    if (applyMinimal)
+                    if (removeStyle)
                     {
-                        // Only apply attributes that will make a difference to the combined
-                        // style as seen on the display
-                        wxRichTextAttr combinedAttr(para->GetCombinedAttributes());
-                        wxRichTextApplyStyle(newPara->GetAttributes(), style, & combinedAttr);
+                        // Removes the given style from the paragraph
+                        wxRichTextRemoveStyle(newPara->GetAttributes(), style);
                     }
+                    else if (resetExistingStyle)
+                        newPara->GetAttributes() = wholeStyle;
                     else
-                        wxRichTextApplyStyle(newPara->GetAttributes(), style);
+                    {
+                        if (applyMinimal)
+                        {
+                            // Only apply attributes that will make a difference to the combined
+                            // style as seen on the display
+                            wxTextAttr combinedAttr(para->GetCombinedAttributes());
+                            wxRichTextApplyStyle(newPara->GetAttributes(), wholeStyle, & combinedAttr);
+                        }
+                        else
+                            wxRichTextApplyStyle(newPara->GetAttributes(), wholeStyle);
+                    }
                 }
 
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
-                // If applying paragraph styles dynamically, don't change the text objects' attributes
+                // When applying paragraph styles dynamically, don't change the text objects' attributes
                 // since they will computed as needed. Only apply the character styling if it's _only_
                 // character styling. This policy is subject to change and might be put under user control.
 
@@ -1642,11 +1799,7 @@ bool wxRichTextParagraphLayoutBox::SetStyle(const wxRichTextRange& range, const
                 // we only want the paragraphs to hold this character style, then we _don't_ want to
                 // apply the character style. So we need to be able to choose.
 
-                // if (!paragraphStyle && characterStyle && range.GetStart() != newPara->GetRange().GetEnd())
-                if (!parasOnly && characterStyle && range.GetStart() != newPara->GetRange().GetEnd())
-#else
-                if (characterStyle && range.GetStart() != newPara->GetRange().GetEnd())
-#endif
+                if (!parasOnly && (characterStyle|charactersOnly) && range.GetStart() != newPara->GetRange().GetEnd())
                 {
                     wxRichTextRange childRange(range);
                     childRange.LimitTo(newPara->GetRange());
@@ -1669,7 +1822,7 @@ bool wxRichTextParagraphLayoutBox::SetStyle(const wxRichTextRange& range, const
                         splitPoint ++;
 
                     // Find last object
-                    if (splitPoint == newPara->GetRange().GetEnd() || splitPoint == (newPara->GetRange().GetEnd() - 1))
+                    if (splitPoint == newPara->GetRange().GetEnd())
                         lastObject = newPara->GetChildren().GetLast()->GetData();
                     else
                         // lastObject is set as a side-effect of splitting. It's
@@ -1694,15 +1847,25 @@ bool wxRichTextParagraphLayoutBox::SetStyle(const wxRichTextRange& range, const
                     {
                         wxRichTextObject* child = node2->GetData();
 
-                        if (applyMinimal)
+                        if (removeStyle)
                         {
-                            // Only apply attributes that will make a difference to the combined
-                            // style as seen on the display
-                            wxRichTextAttr combinedAttr(newPara->GetCombinedAttributes(child->GetAttributes()));
-                            wxRichTextApplyStyle(child->GetAttributes(), characterAttributes, & combinedAttr);
+                            // Removes the given style from the paragraph
+                            wxRichTextRemoveStyle(child->GetAttributes(), style);
                         }
+                        else if (resetExistingStyle)
+                            child->GetAttributes() = characterAttributes;
                         else
-                            wxRichTextApplyStyle(child->GetAttributes(), characterAttributes);
+                        {
+                            if (applyMinimal)
+                            {
+                                // Only apply attributes that will make a difference to the combined
+                                // style as seen on the display
+                                wxTextAttr combinedAttr(newPara->GetCombinedAttributes(child->GetAttributes()));
+                                wxRichTextApplyStyle(child->GetAttributes(), characterAttributes, & combinedAttr);
+                            }
+                            else
+                                wxRichTextApplyStyle(child->GetAttributes(), characterAttributes);
+                        }
 
                         if (node2 == lastNode)
                             break;
@@ -1723,53 +1886,20 @@ bool wxRichTextParagraphLayoutBox::SetStyle(const wxRichTextRange& range, const
     return true;
 }
 
-/// Set text attributes
-bool wxRichTextParagraphLayoutBox::SetStyle(const wxRichTextRange& range, const wxTextAttrEx& style, int flags)
-{
-    wxRichTextAttr richStyle = style;
-    return SetStyle(range, richStyle, flags);
-}
-
 /// Get the text attributes for this position.
-bool wxRichTextParagraphLayoutBox::GetStyle(long position, wxTextAttrEx& style)
+bool wxRichTextParagraphLayoutBox::GetStyle(long position, wxTextAttr& style)
 {
     return DoGetStyle(position, style, true);
 }
 
-/// Get the text attributes for this position.
-bool wxRichTextParagraphLayoutBox::GetStyle(long position, wxRichTextAttr& style)
-{
-    wxTextAttrEx textAttrEx(style);
-    if (GetStyle(position, textAttrEx))
-    {
-        style = textAttrEx;
-        return true;
-    }
-    else
-        return false;
-}
-
-/// Get the content (uncombined) attributes for this position.
-bool wxRichTextParagraphLayoutBox::GetUncombinedStyle(long position, wxTextAttrEx& style)
+bool wxRichTextParagraphLayoutBox::GetUncombinedStyle(long position, wxTextAttr& style)
 {
     return DoGetStyle(position, style, false);
 }
 
-bool wxRichTextParagraphLayoutBox::GetUncombinedStyle(long position, wxRichTextAttr& style)
-{
-    wxTextAttrEx textAttrEx(style);
-    if (GetUncombinedStyle(position, textAttrEx))
-    {
-        style = textAttrEx;
-        return true;
-    }
-    else
-        return false;
-}
-
 /// Implementation helper for GetStyle. If combineStyles is true, combine base, paragraph and
 /// context attributes.
-bool wxRichTextParagraphLayoutBox::DoGetStyle(long position, wxTextAttrEx& style, bool combineStyles)
+bool wxRichTextParagraphLayoutBox::DoGetStyle(long position, wxTextAttr& style, bool combineStyles)
 {
     wxRichTextObject* obj wxDUMMY_INITIALIZE(NULL);
 
@@ -1778,7 +1908,6 @@ bool wxRichTextParagraphLayoutBox::DoGetStyle(long position, wxTextAttrEx& style
         obj = GetParagraphAtPosition(position);
         if (obj)
         {
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
             if (combineStyles)
             {
                 // Start with the base style
@@ -1789,9 +1918,7 @@ bool wxRichTextParagraphLayoutBox::DoGetStyle(long position, wxTextAttrEx& style
             }
             else
                 style = obj->GetAttributes();
-#else
-            style = obj->GetAttributes();
-#endif
+
             return true;
         }
     }
@@ -1800,7 +1927,6 @@ bool wxRichTextParagraphLayoutBox::DoGetStyle(long position, wxTextAttrEx& style
         obj = GetLeafObjectAtPosition(position);
         if (obj)
         {
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
             if (combineStyles)
             {
                 wxRichTextParagraph* para = wxDynamicCast(obj->GetParent(), wxRichTextParagraph);
@@ -1808,9 +1934,7 @@ bool wxRichTextParagraphLayoutBox::DoGetStyle(long position, wxTextAttrEx& style
             }
             else
                 style = obj->GetAttributes();
-#else
-            style = obj->GetAttributes();
-#endif
+
             return true;
         }
     }
@@ -1824,15 +1948,18 @@ static bool wxHasStyle(long flags, long style)
 
 /// Combines 'style' with 'currentStyle' for the purpose of summarising the attributes of a range of
 /// content.
-bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, const wxTextAttrEx& style, long& multipleStyleAttributes)
+bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const wxTextAttr& style, long& multipleStyleAttributes, int& multipleTextEffectAttributes, int& absentStyleAttributes, int& absentTextEffectAttributes)
 {
+    absentStyleAttributes |= (~style.GetFlags() & wxTEXT_ATTR_ALL);
+    absentTextEffectAttributes |= (~style.GetTextEffectFlags() & 0xFFFF);
+
     if (style.HasFont())
     {
-        if (style.HasSize() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_FONT_SIZE))
+        if (style.HasFontSize() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_FONT_SIZE))
         {
-            if (currentStyle.GetFont().Ok() && currentStyle.HasSize())
+            if (currentStyle.HasFontSize())
             {
-                if (currentStyle.GetFont().GetPointSize() != style.GetFont().GetPointSize())
+                if (currentStyle.GetFontSize() != style.GetFontSize())
                 {
                     // Clash of style - mark as such
                     multipleStyleAttributes |= wxTEXT_ATTR_FONT_SIZE;
@@ -1841,21 +1968,15 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             }
             else
             {
-                if (!currentStyle.GetFont().Ok())
-                    wxSetFontPreservingStyles(currentStyle, *wxNORMAL_FONT);
-                wxFont font(currentStyle.GetFont());
-                font.SetPointSize(style.GetFont().GetPointSize());
-
-                wxSetFontPreservingStyles(currentStyle, font);
-                currentStyle.SetFlags(currentStyle.GetFlags() | wxTEXT_ATTR_FONT_SIZE);
+                currentStyle.SetFontSize(style.GetFontSize());
             }
         }
 
-        if (style.HasItalic() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_FONT_ITALIC))
+        if (style.HasFontItalic() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_FONT_ITALIC))
         {
-            if (currentStyle.GetFont().Ok() && currentStyle.HasItalic())
+            if (currentStyle.HasFontItalic())
             {
-                if (currentStyle.GetFont().GetStyle() != style.GetFont().GetStyle())
+                if (currentStyle.GetFontStyle() != style.GetFontStyle())
                 {
                     // Clash of style - mark as such
                     multipleStyleAttributes |= wxTEXT_ATTR_FONT_ITALIC;
@@ -1864,20 +1985,32 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             }
             else
             {
-                if (!currentStyle.GetFont().Ok())
-                    wxSetFontPreservingStyles(currentStyle, *wxNORMAL_FONT);
-                wxFont font(currentStyle.GetFont());
-                font.SetStyle(style.GetFont().GetStyle());
-                wxSetFontPreservingStyles(currentStyle, font);
-                currentStyle.SetFlags(currentStyle.GetFlags() | wxTEXT_ATTR_FONT_ITALIC);
+                currentStyle.SetFontStyle(style.GetFontStyle());
             }
         }
 
-        if (style.HasWeight() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_FONT_WEIGHT))
+        if (style.HasFontFamily() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_FONT_FAMILY))
         {
-            if (currentStyle.GetFont().Ok() && currentStyle.HasWeight())
+            if (currentStyle.HasFontFamily())
             {
-                if (currentStyle.GetFont().GetWeight() != style.GetFont().GetWeight())
+                if (currentStyle.GetFontFamily() != style.GetFontFamily())
+                {
+                    // Clash of style - mark as such
+                    multipleStyleAttributes |= wxTEXT_ATTR_FONT_FAMILY;
+                    currentStyle.SetFlags(currentStyle.GetFlags() & ~wxTEXT_ATTR_FONT_FAMILY);
+                }
+            }
+            else
+            {
+                currentStyle.SetFontFamily(style.GetFontFamily());
+            }
+        }
+
+        if (style.HasFontWeight() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_FONT_WEIGHT))
+        {
+            if (currentStyle.HasFontWeight())
+            {
+                if (currentStyle.GetFontWeight() != style.GetFontWeight())
                 {
                     // Clash of style - mark as such
                     multipleStyleAttributes |= wxTEXT_ATTR_FONT_WEIGHT;
@@ -1886,21 +2019,16 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             }
             else
             {
-                if (!currentStyle.GetFont().Ok())
-                    wxSetFontPreservingStyles(currentStyle, *wxNORMAL_FONT);
-                wxFont font(currentStyle.GetFont());
-                font.SetWeight(style.GetFont().GetWeight());
-                wxSetFontPreservingStyles(currentStyle, font);
-                currentStyle.SetFlags(currentStyle.GetFlags() | wxTEXT_ATTR_FONT_WEIGHT);
+                currentStyle.SetFontWeight(style.GetFontWeight());
             }
         }
 
-        if (style.HasFaceName() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_FONT_FACE))
+        if (style.HasFontFaceName() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_FONT_FACE))
         {
-            if (currentStyle.GetFont().Ok() && currentStyle.HasFaceName())
+            if (currentStyle.HasFontFaceName())
             {
-                wxString faceName1(currentStyle.GetFont().GetFaceName());
-                wxString faceName2(style.GetFont().GetFaceName());
+                wxString faceName1(currentStyle.GetFontFaceName());
+                wxString faceName2(style.GetFontFaceName());
 
                 if (faceName1 != faceName2)
                 {
@@ -1911,20 +2039,15 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             }
             else
             {
-                if (!currentStyle.GetFont().Ok())
-                    wxSetFontPreservingStyles(currentStyle, *wxNORMAL_FONT);
-                wxFont font(currentStyle.GetFont());
-                font.SetFaceName(style.GetFont().GetFaceName());
-                wxSetFontPreservingStyles(currentStyle, font);
-                currentStyle.SetFlags(currentStyle.GetFlags() | wxTEXT_ATTR_FONT_FACE);
+                currentStyle.SetFontFaceName(style.GetFontFaceName());
             }
         }
 
-        if (style.HasUnderlined() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_FONT_UNDERLINE))
+        if (style.HasFontUnderlined() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_FONT_UNDERLINE))
         {
-            if (currentStyle.GetFont().Ok() && currentStyle.HasUnderlined())
+            if (currentStyle.HasFontUnderlined())
             {
-                if (currentStyle.GetFont().GetUnderlined() != style.GetFont().GetUnderlined())
+                if (currentStyle.GetFontUnderlined() != style.GetFontUnderlined())
                 {
                     // Clash of style - mark as such
                     multipleStyleAttributes |= wxTEXT_ATTR_FONT_UNDERLINE;
@@ -1933,17 +2056,12 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             }
             else
             {
-                if (!currentStyle.GetFont().Ok())
-                    wxSetFontPreservingStyles(currentStyle, *wxNORMAL_FONT);
-                wxFont font(currentStyle.GetFont());
-                font.SetUnderlined(style.GetFont().GetUnderlined());
-                wxSetFontPreservingStyles(currentStyle, font);
-                currentStyle.SetFlags(currentStyle.GetFlags() | wxTEXT_ATTR_FONT_UNDERLINE);
+                currentStyle.SetFontUnderlined(style.GetFontUnderlined());
             }
         }
     }
 
-    if (style.HasTextColour() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_TEXT_COLOUR))
+    if (style.HasTextColour() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_TEXT_COLOUR))
     {
         if (currentStyle.HasTextColour())
         {
@@ -1958,7 +2076,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             currentStyle.SetTextColour(style.GetTextColour());
     }
 
-    if (style.HasBackgroundColour() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_BACKGROUND_COLOUR))
+    if (style.HasBackgroundColour() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_BACKGROUND_COLOUR))
     {
         if (currentStyle.HasBackgroundColour())
         {
@@ -1973,7 +2091,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             currentStyle.SetBackgroundColour(style.GetBackgroundColour());
     }
 
-    if (style.HasAlignment() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_ALIGNMENT))
+    if (style.HasAlignment() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_ALIGNMENT))
     {
         if (currentStyle.HasAlignment())
         {
@@ -1988,7 +2106,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             currentStyle.SetAlignment(style.GetAlignment());
     }
 
-    if (style.HasTabs() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_TABS))
+    if (style.HasTabs() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_TABS))
     {
         if (currentStyle.HasTabs())
         {
@@ -2003,7 +2121,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             currentStyle.SetTabs(style.GetTabs());
     }
 
-    if (style.HasLeftIndent() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_LEFT_INDENT))
+    if (style.HasLeftIndent() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_LEFT_INDENT))
     {
         if (currentStyle.HasLeftIndent())
         {
@@ -2018,7 +2136,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             currentStyle.SetLeftIndent(style.GetLeftIndent(), style.GetLeftSubIndent());
     }
 
-    if (style.HasRightIndent() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_RIGHT_INDENT))
+    if (style.HasRightIndent() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_RIGHT_INDENT))
     {
         if (currentStyle.HasRightIndent())
         {
@@ -2033,11 +2151,11 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             currentStyle.SetRightIndent(style.GetRightIndent());
     }
 
-    if (style.HasParagraphSpacingAfter() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_PARA_SPACING_AFTER))
+    if (style.HasParagraphSpacingAfter() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_PARA_SPACING_AFTER))
     {
         if (currentStyle.HasParagraphSpacingAfter())
         {
-            if (currentStyle.HasParagraphSpacingAfter() != style.HasParagraphSpacingAfter())
+            if (currentStyle.GetParagraphSpacingAfter() != style.GetParagraphSpacingAfter())
             {
                 // Clash of style - mark as such
                 multipleStyleAttributes |= wxTEXT_ATTR_PARA_SPACING_AFTER;
@@ -2048,11 +2166,11 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             currentStyle.SetParagraphSpacingAfter(style.GetParagraphSpacingAfter());
     }
 
-    if (style.HasParagraphSpacingBefore() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_PARA_SPACING_BEFORE))
+    if (style.HasParagraphSpacingBefore() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_PARA_SPACING_BEFORE))
     {
         if (currentStyle.HasParagraphSpacingBefore())
         {
-            if (currentStyle.HasParagraphSpacingBefore() != style.HasParagraphSpacingBefore())
+            if (currentStyle.GetParagraphSpacingBefore() != style.GetParagraphSpacingBefore())
             {
                 // Clash of style - mark as such
                 multipleStyleAttributes |= wxTEXT_ATTR_PARA_SPACING_BEFORE;
@@ -2063,11 +2181,11 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             currentStyle.SetParagraphSpacingBefore(style.GetParagraphSpacingBefore());
     }
 
-    if (style.HasLineSpacing() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_LINE_SPACING))
+    if (style.HasLineSpacing() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_LINE_SPACING))
     {
         if (currentStyle.HasLineSpacing())
         {
-            if (currentStyle.HasLineSpacing() != style.HasLineSpacing())
+            if (currentStyle.GetLineSpacing() != style.GetLineSpacing())
             {
                 // Clash of style - mark as such
                 multipleStyleAttributes |= wxTEXT_ATTR_LINE_SPACING;
@@ -2078,11 +2196,11 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             currentStyle.SetLineSpacing(style.GetLineSpacing());
     }
 
-    if (style.HasCharacterStyleName() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_CHARACTER_STYLE_NAME))
+    if (style.HasCharacterStyleName() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_CHARACTER_STYLE_NAME))
     {
         if (currentStyle.HasCharacterStyleName())
         {
-            if (currentStyle.HasCharacterStyleName() != style.HasCharacterStyleName())
+            if (currentStyle.GetCharacterStyleName() != style.GetCharacterStyleName())
             {
                 // Clash of style - mark as such
                 multipleStyleAttributes |= wxTEXT_ATTR_CHARACTER_STYLE_NAME;
@@ -2093,11 +2211,11 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             currentStyle.SetCharacterStyleName(style.GetCharacterStyleName());
     }
 
-    if (style.HasParagraphStyleName() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_PARAGRAPH_STYLE_NAME))
+    if (style.HasParagraphStyleName() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_PARAGRAPH_STYLE_NAME))
     {
         if (currentStyle.HasParagraphStyleName())
         {
-            if (currentStyle.HasParagraphStyleName() != style.HasParagraphStyleName())
+            if (currentStyle.GetParagraphStyleName() != style.GetParagraphStyleName())
             {
                 // Clash of style - mark as such
                 multipleStyleAttributes |= wxTEXT_ATTR_PARAGRAPH_STYLE_NAME;
@@ -2108,11 +2226,26 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             currentStyle.SetParagraphStyleName(style.GetParagraphStyleName());
     }
 
-    if (style.HasBulletStyle() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_BULLET_STYLE))
+    if (style.HasListStyleName() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_LIST_STYLE_NAME))
+    {
+        if (currentStyle.HasListStyleName())
+        {
+            if (currentStyle.GetListStyleName() != style.GetListStyleName())
+            {
+                // Clash of style - mark as such
+                multipleStyleAttributes |= wxTEXT_ATTR_LIST_STYLE_NAME;
+                currentStyle.SetFlags(currentStyle.GetFlags() & ~wxTEXT_ATTR_LIST_STYLE_NAME);
+            }
+        }
+        else
+            currentStyle.SetListStyleName(style.GetListStyleName());
+    }
+
+    if (style.HasBulletStyle() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_BULLET_STYLE))
     {
         if (currentStyle.HasBulletStyle())
         {
-            if (currentStyle.HasBulletStyle() != style.HasBulletStyle())
+            if (currentStyle.GetBulletStyle() != style.GetBulletStyle())
             {
                 // Clash of style - mark as such
                 multipleStyleAttributes |= wxTEXT_ATTR_BULLET_STYLE;
@@ -2123,11 +2256,11 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             currentStyle.SetBulletStyle(style.GetBulletStyle());
     }
 
-    if (style.HasBulletNumber() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_BULLET_NUMBER))
+    if (style.HasBulletNumber() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_BULLET_NUMBER))
     {
         if (currentStyle.HasBulletNumber())
         {
-            if (currentStyle.HasBulletNumber() != style.HasBulletNumber())
+            if (currentStyle.GetBulletNumber() != style.GetBulletNumber())
             {
                 // Clash of style - mark as such
                 multipleStyleAttributes |= wxTEXT_ATTR_BULLET_NUMBER;
@@ -2138,73 +2271,167 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             currentStyle.SetBulletNumber(style.GetBulletNumber());
     }
 
-    if (style.HasBulletSymbol() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_BULLET_SYMBOL))
+    if (style.HasBulletText() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_BULLET_TEXT))
     {
-        if (currentStyle.HasBulletSymbol())
+        if (currentStyle.HasBulletText())
         {
-            if (currentStyle.HasBulletSymbol() != style.HasBulletSymbol())
+            if (currentStyle.GetBulletText() != style.GetBulletText())
             {
                 // Clash of style - mark as such
-                multipleStyleAttributes |= wxTEXT_ATTR_BULLET_SYMBOL;
-                currentStyle.SetFlags(currentStyle.GetFlags() & ~wxTEXT_ATTR_BULLET_SYMBOL);
+                multipleStyleAttributes |= wxTEXT_ATTR_BULLET_TEXT;
+                currentStyle.SetFlags(currentStyle.GetFlags() & ~wxTEXT_ATTR_BULLET_TEXT);
             }
         }
         else
         {
-            currentStyle.SetBulletSymbol(style.GetBulletSymbol());
+            currentStyle.SetBulletText(style.GetBulletText());
             currentStyle.SetBulletFont(style.GetBulletFont());
         }
     }
 
-    return true;
-}
-
-/// Get the combined style for a range - if any attribute is different within the range,
-/// that attribute is not present within the flags.
-/// *** Note that this is not recursive, and so assumes that content inside a paragraph is not itself
-/// nested.
-bool wxRichTextParagraphLayoutBox::GetStyleForRange(const wxRichTextRange& range, wxTextAttrEx& style)
-{
-    style = wxTextAttrEx();
-
-    // The attributes that aren't valid because of multiple styles within the range
-    long multipleStyleAttributes = 0;
-
-    wxRichTextObjectList::compatibility_iterator node = GetChildren().GetFirst();
-    while (node)
+    if (style.HasBulletName() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_BULLET_NAME))
     {
-        wxRichTextParagraph* para = (wxRichTextParagraph*) node->GetData();
-        if (!(para->GetRange().GetStart() > range.GetEnd() || para->GetRange().GetEnd() < range.GetStart()))
+        if (currentStyle.HasBulletName())
         {
-            if (para->GetChildren().GetCount() == 0)
+            if (currentStyle.GetBulletName() != style.GetBulletName())
             {
-                wxTextAttrEx paraStyle = para->GetCombinedAttributes();
-
-                CollectStyle(style, paraStyle, multipleStyleAttributes);
+                // Clash of style - mark as such
+                multipleStyleAttributes |= wxTEXT_ATTR_BULLET_NAME;
+                currentStyle.SetFlags(currentStyle.GetFlags() & ~wxTEXT_ATTR_BULLET_NAME);
             }
-            else
+        }
+        else
+        {
+            currentStyle.SetBulletName(style.GetBulletName());
+        }
+    }
+
+    if (style.HasURL() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_URL))
+    {
+        if (currentStyle.HasURL())
+        {
+            if (currentStyle.GetURL() != style.GetURL())
             {
-                wxRichTextRange paraRange(para->GetRange());
-                paraRange.LimitTo(range);
+                // Clash of style - mark as such
+                multipleStyleAttributes |= wxTEXT_ATTR_URL;
+                currentStyle.SetFlags(currentStyle.GetFlags() & ~wxTEXT_ATTR_URL);
+            }
+        }
+        else
+        {
+            currentStyle.SetURL(style.GetURL());
+        }
+    }
 
-                // First collect paragraph attributes only
-                wxTextAttrEx paraStyle = para->GetCombinedAttributes();
-                paraStyle.SetFlags(paraStyle.GetFlags() & wxTEXT_ATTR_PARAGRAPH);
-                CollectStyle(style, paraStyle, multipleStyleAttributes);
+    if (style.HasTextEffects() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_EFFECTS))
+    {
+        if (currentStyle.HasTextEffects())
+        {
+            // We need to find the bits in the new style that are different:
+            // just look at those bits that are specified by the new style.
 
-                wxRichTextObjectList::compatibility_iterator childNode = para->GetChildren().GetFirst();
+            // We need to remove the bits and flags that are not common between current style
+            // and new style. In so doing we need to take account of the styles absent from one or more of the
+            // previous styles.
 
-                while (childNode)
-                {
+            int currentRelevantTextEffects = currentStyle.GetTextEffects() & style.GetTextEffectFlags();
+            int newRelevantTextEffects = style.GetTextEffects() & style.GetTextEffectFlags();
+
+            if (currentRelevantTextEffects != newRelevantTextEffects)
+            {
+                // Find the text effects that were different, using XOR
+                int differentEffects = currentRelevantTextEffects ^ newRelevantTextEffects;
+
+                // Clash of style - mark as such
+                multipleTextEffectAttributes |= differentEffects;
+                currentStyle.SetTextEffectFlags(currentStyle.GetTextEffectFlags() & ~differentEffects);
+            }
+        }
+        else
+        {
+            currentStyle.SetTextEffects(style.GetTextEffects());
+            currentStyle.SetTextEffectFlags(style.GetTextEffectFlags());
+        }
+
+        // Mask out the flags and values that cannot be common because they were absent in one or more objecrs
+        // that we've looked at so far
+        currentStyle.SetTextEffects(currentStyle.GetTextEffects() & ~absentTextEffectAttributes);
+        currentStyle.SetTextEffectFlags(currentStyle.GetTextEffectFlags() & ~absentTextEffectAttributes);
+
+        if (currentStyle.GetTextEffectFlags() == 0)
+            currentStyle.SetFlags(currentStyle.GetFlags() & ~wxTEXT_ATTR_EFFECTS);
+    }
+
+    if (style.HasOutlineLevel() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_OUTLINE_LEVEL))
+    {
+        if (currentStyle.HasOutlineLevel())
+        {
+            if (currentStyle.GetOutlineLevel() != style.GetOutlineLevel())
+            {
+                // Clash of style - mark as such
+                multipleStyleAttributes |= wxTEXT_ATTR_OUTLINE_LEVEL;
+                currentStyle.SetFlags(currentStyle.GetFlags() & ~wxTEXT_ATTR_OUTLINE_LEVEL);
+            }
+        }
+        else
+            currentStyle.SetOutlineLevel(style.GetOutlineLevel());
+    }
+
+    return true;
+}
+
+/// Get the combined style for a range - if any attribute is different within the range,
+/// that attribute is not present within the flags.
+/// *** Note that this is not recursive, and so assumes that content inside a paragraph is not itself
+/// nested.
+bool wxRichTextParagraphLayoutBox::GetStyleForRange(const wxRichTextRange& range, wxTextAttr& style)
+{
+    style = wxTextAttr();
+
+    // The attributes that aren't valid because of multiple styles within the range
+    long multipleStyleAttributes = 0;
+    int multipleTextEffectAttributes = 0;
+
+    int absentStyleAttributesPara = 0;
+    int absentStyleAttributesChar = 0;
+    int absentTextEffectAttributesPara = 0;
+    int absentTextEffectAttributesChar = 0;
+
+    wxRichTextObjectList::compatibility_iterator node = GetChildren().GetFirst();
+    while (node)
+    {
+        wxRichTextParagraph* para = (wxRichTextParagraph*) node->GetData();
+        if (!(para->GetRange().GetStart() > range.GetEnd() || para->GetRange().GetEnd() < range.GetStart()))
+        {
+            if (para->GetChildren().GetCount() == 0)
+            {
+                wxTextAttr paraStyle = para->GetCombinedAttributes();
+
+                CollectStyle(style, paraStyle, multipleStyleAttributes, multipleTextEffectAttributes, absentStyleAttributesPara, absentTextEffectAttributesPara);
+            }
+            else
+            {
+                wxRichTextRange paraRange(para->GetRange());
+                paraRange.LimitTo(range);
+
+                // First collect paragraph attributes only
+                wxTextAttr paraStyle = para->GetCombinedAttributes();
+                paraStyle.SetFlags(paraStyle.GetFlags() & wxTEXT_ATTR_PARAGRAPH);
+                CollectStyle(style, paraStyle, multipleStyleAttributes, multipleTextEffectAttributes, absentStyleAttributesPara, absentTextEffectAttributesPara);
+
+                wxRichTextObjectList::compatibility_iterator childNode = para->GetChildren().GetFirst();
+
+                while (childNode)
+                {
                     wxRichTextObject* child = childNode->GetData();
                     if (!(child->GetRange().GetStart() > range.GetEnd() || child->GetRange().GetEnd() < range.GetStart()))
                     {
-                        wxTextAttrEx childStyle = para->GetCombinedAttributes(child->GetAttributes());
+                        wxTextAttr childStyle = para->GetCombinedAttributes(child->GetAttributes());
 
                         // Now collect character attributes only
                         childStyle.SetFlags(childStyle.GetFlags() & wxTEXT_ATTR_CHARACTER);
 
-                        CollectStyle(style, childStyle, multipleStyleAttributes);
+                        CollectStyle(style, childStyle, multipleStyleAttributes, multipleTextEffectAttributes, absentStyleAttributesChar, absentTextEffectAttributesChar);
                     }
 
                     childNode = childNode->GetNext();
@@ -2217,21 +2444,9 @@ bool wxRichTextParagraphLayoutBox::GetStyleForRange(const wxRichTextRange& range
 }
 
 /// Set default style
-bool wxRichTextParagraphLayoutBox::SetDefaultStyle(const wxTextAttrEx& style)
+bool wxRichTextParagraphLayoutBox::SetDefaultStyle(const wxTextAttr& style)
 {
-    // I don't think the default style should be combined with the previous
-    // default style.
     m_defaultAttributes = style;
-
-#if 0
-    // keep the old attributes if the new style doesn't specify them unless the
-    // new style is empty - then reset m_defaultStyle (as there is no other way
-    // to do it)
-    if ( style.IsDefault() )
-        m_defaultAttributes = style;
-    else
-        m_defaultAttributes = wxTextAttrEx::CombineEx(style, m_defaultAttributes, NULL);
-#endif
     return true;
 }
 
@@ -2239,7 +2454,7 @@ bool wxRichTextParagraphLayoutBox::SetDefaultStyle(const wxTextAttrEx& style)
 /// of the attributes are different within the range, the test fails. You
 /// can use this to implement, for example, bold button updating. style must have
 /// flags indicating which attributes are of interest.
-bool wxRichTextParagraphLayoutBox::HasCharacterAttributes(const wxRichTextRange& range, const wxRichTextAttr& style) const
+bool wxRichTextParagraphLayoutBox::HasCharacterAttributes(const wxRichTextRange& range, const wxTextAttr& style) const
 {
     int foundCount = 0;
     int matchingCount = 0;
@@ -2254,7 +2469,7 @@ bool wxRichTextParagraphLayoutBox::HasCharacterAttributes(const wxRichTextRange&
         {
             // Stop searching if we're beyond the range of interest
             if (para->GetRange().GetStart() > range.GetEnd())
-                return foundCount == matchingCount;
+                return foundCount == matchingCount && foundCount != 0;
 
             if (!para->GetRange().IsOutside(range))
             {
@@ -2263,14 +2478,16 @@ bool wxRichTextParagraphLayoutBox::HasCharacterAttributes(const wxRichTextRange&
                 while (node2)
                 {
                     wxRichTextObject* child = node2->GetData();
-                    if (!child->GetRange().IsOutside(range) && child->IsKindOf(CLASSINFO(wxRichTextPlainText)))
+                    // Allow for empty string if no buffer
+                    wxRichTextRange childRange = child->GetRange();
+                    if (childRange.GetLength() == 0 && GetRange().GetLength() == 1)
+                        childRange.SetEnd(childRange.GetEnd()+1);
+
+                    if (!childRange.IsOutside(range) && child->IsKindOf(CLASSINFO(wxRichTextPlainText)))
                     {
                         foundCount ++;
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
-                        wxTextAttrEx textAttr = para->GetCombinedAttributes(child->GetAttributes());
-#else
-                        const wxTextAttrEx& textAttr = child->GetAttributes();
-#endif
+                        wxTextAttr textAttr = para->GetCombinedAttributes(child->GetAttributes());
+
                         if (wxTextAttrEqPartial(textAttr, style, style.GetFlags()))
                             matchingCount ++;
                     }
@@ -2283,20 +2500,14 @@ bool wxRichTextParagraphLayoutBox::HasCharacterAttributes(const wxRichTextRange&
         node = node->GetNext();
     }
 
-    return foundCount == matchingCount;
-}
-
-bool wxRichTextParagraphLayoutBox::HasCharacterAttributes(const wxRichTextRange& range, const wxTextAttrEx& style) const
-{
-    wxRichTextAttr richStyle = style;
-    return HasCharacterAttributes(range, richStyle);
+    return foundCount == matchingCount && foundCount != 0;
 }
 
 /// Test if this whole range has paragraph attributes of the specified kind. If any
 /// of the attributes are different within the range, the test fails. You
 /// can use this to implement, for example, centering button updating. style must have
 /// flags indicating which attributes are of interest.
-bool wxRichTextParagraphLayoutBox::HasParagraphAttributes(const wxRichTextRange& range, const wxRichTextAttr& style) const
+bool wxRichTextParagraphLayoutBox::HasParagraphAttributes(const wxRichTextRange& range, const wxTextAttr& style) const
 {
     int foundCount = 0;
     int matchingCount = 0;
@@ -2311,18 +2522,14 @@ bool wxRichTextParagraphLayoutBox::HasParagraphAttributes(const wxRichTextRange&
         {
             // Stop searching if we're beyond the range of interest
             if (para->GetRange().GetStart() > range.GetEnd())
-                return foundCount == matchingCount;
+                return foundCount == matchingCount && foundCount != 0;
 
             if (!para->GetRange().IsOutside(range))
             {
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
-                wxTextAttrEx textAttr = GetAttributes();
+                wxTextAttr textAttr = GetAttributes();
                 // Apply the paragraph style
                 wxRichTextApplyStyle(textAttr, para->GetAttributes());
 
-#else
-                const wxTextAttrEx& textAttr = para->GetAttributes();
-#endif
                 foundCount ++;
                 if (wxTextAttrEqPartial(textAttr, style, style.GetFlags()))
                     matchingCount ++;
@@ -2331,13 +2538,7 @@ bool wxRichTextParagraphLayoutBox::HasParagraphAttributes(const wxRichTextRange&
 
         node = node->GetNext();
     }
-    return foundCount == matchingCount;
-}
-
-bool wxRichTextParagraphLayoutBox::HasParagraphAttributes(const wxRichTextRange& range, const wxTextAttrEx& style) const
-{
-    wxRichTextAttr richStyle = style;
-    return HasParagraphAttributes(range, richStyle);
+    return foundCount == matchingCount && foundCount != 0;
 }
 
 void wxRichTextParagraphLayoutBox::Clear()
@@ -2349,7 +2550,18 @@ void wxRichTextParagraphLayoutBox::Reset()
 {
     Clear();
 
+    wxRichTextBuffer* buffer = wxDynamicCast(this, wxRichTextBuffer);
+    if (buffer && GetRichTextCtrl())
+    {
+        wxRichTextEvent event(wxEVT_COMMAND_RICHTEXT_BUFFER_RESET, GetRichTextCtrl()->GetId());
+        event.SetEventObject(GetRichTextCtrl());
+
+        buffer->SendEvent(event, true);
+    }
+
     AddParagraph(wxEmptyString);
+
+    Invalidate(wxRICHTEXT_ALL);
 }
 
 /// Invalidate the buffer. With no argument, invalidates whole buffer.
@@ -2402,6 +2614,29 @@ bool wxRichTextParagraphLayoutBox::ApplyStyleSheet(wxRichTextStyleSheet* styleSh
 
     int foundCount = 0;
 
+    wxRichTextAttr attr(GetBasicStyle());
+    if (GetBasicStyle().HasParagraphStyleName())
+    {
+        wxRichTextParagraphStyleDefinition* paraDef = styleSheet->FindParagraphStyle(GetBasicStyle().GetParagraphStyleName());
+        if (paraDef)
+        {
+            attr.Apply(paraDef->GetStyleMergedWithBase(styleSheet));
+            SetBasicStyle(attr);
+            foundCount ++;
+        }
+    }
+
+    if (GetBasicStyle().HasCharacterStyleName())
+    {
+        wxRichTextCharacterStyleDefinition* charDef = styleSheet->FindCharacterStyle(GetBasicStyle().GetCharacterStyleName());
+        if (charDef)
+        {
+            attr.Apply(charDef->GetStyleMergedWithBase(styleSheet));
+            SetBasicStyle(attr);
+            foundCount ++;
+        }
+    }
+
     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
     while (node)
     {
@@ -2410,12 +2645,62 @@ bool wxRichTextParagraphLayoutBox::ApplyStyleSheet(wxRichTextStyleSheet* styleSh
 
         if (para)
         {
-            if (!para->GetAttributes().GetParagraphStyleName().IsEmpty())
+            // Combine paragraph and list styles. If there is a list style in the original attributes,
+            // the current indentation overrides anything else and is used to find the item indentation.
+            // Also, for applying paragraph styles, consider having 2 modes: (1) we merge with what we have,
+            // thereby taking into account all user changes, (2) reset the style completely (except for indentation/list
+            // exception as above).
+            // Problem: when changing from one list style to another, there's a danger that the level info will get lost.
+            // So when changing a list style interactively, could retrieve level based on current style, then
+            // set appropriate indent and apply new style.
+
+            if (!para->GetAttributes().GetParagraphStyleName().IsEmpty() && !para->GetAttributes().GetListStyleName().IsEmpty())
+            {
+                int currentIndent = para->GetAttributes().GetLeftIndent();
+
+                wxRichTextParagraphStyleDefinition* paraDef = styleSheet->FindParagraphStyle(para->GetAttributes().GetParagraphStyleName());
+                wxRichTextListStyleDefinition* listDef = styleSheet->FindListStyle(para->GetAttributes().GetListStyleName());
+                if (paraDef && !listDef)
+                {
+                    para->GetAttributes() = paraDef->GetStyleMergedWithBase(styleSheet);
+                    foundCount ++;
+                }
+                else if (listDef && !paraDef)
+                {
+                    // Set overall style defined for the list style definition
+                    para->GetAttributes() = listDef->GetStyleMergedWithBase(styleSheet);
+
+                    // Apply the style for this level
+                    wxRichTextApplyStyle(para->GetAttributes(), * listDef->GetLevelAttributes(listDef->FindLevelForIndent(currentIndent)));
+                    foundCount ++;
+                }
+                else if (listDef && paraDef)
+                {
+                    // Combines overall list style, style for level, and paragraph style
+                    para->GetAttributes() = listDef->CombineWithParagraphStyle(currentIndent, paraDef->GetStyleMergedWithBase(styleSheet));
+                    foundCount ++;
+                }
+            }
+            else if (para->GetAttributes().GetParagraphStyleName().IsEmpty() && !para->GetAttributes().GetListStyleName().IsEmpty())
+            {
+                int currentIndent = para->GetAttributes().GetLeftIndent();
+
+                wxRichTextListStyleDefinition* listDef = styleSheet->FindListStyle(para->GetAttributes().GetListStyleName());
+
+                // Overall list definition style
+                para->GetAttributes() = listDef->GetStyleMergedWithBase(styleSheet);
+
+                // Style for this level
+                wxRichTextApplyStyle(para->GetAttributes(), * listDef->GetLevelAttributes(listDef->FindLevelForIndent(currentIndent)));
+
+                foundCount ++;
+            }
+            else if (!para->GetAttributes().GetParagraphStyleName().IsEmpty() && para->GetAttributes().GetListStyleName().IsEmpty())
             {
                 wxRichTextParagraphStyleDefinition* def = styleSheet->FindParagraphStyle(para->GetAttributes().GetParagraphStyleName());
                 if (def)
                 {
-                    para->GetAttributes() = def->GetStyle();
+                    para->GetAttributes() = def->GetStyleMergedWithBase(styleSheet);
                     foundCount ++;
                 }
             }
@@ -2426,188 +2711,625 @@ bool wxRichTextParagraphLayoutBox::ApplyStyleSheet(wxRichTextStyleSheet* styleSh
     return foundCount != 0;
 }
 
-/*!
- * wxRichTextParagraph
- * This object represents a single paragraph (or in a straight text editor, a line).
- */
+/// Set list style
+bool wxRichTextParagraphLayoutBox::SetListStyle(const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int startFrom, int specifiedLevel)
+{
+    wxRichTextStyleSheet* styleSheet = GetStyleSheet();
 
-IMPLEMENT_DYNAMIC_CLASS(wxRichTextParagraph, wxRichTextBox)
+    bool withUndo = ((flags & wxRICHTEXT_SETSTYLE_WITH_UNDO) != 0);
+    // bool applyMinimal = ((flags & wxRICHTEXT_SETSTYLE_OPTIMIZE) != 0);
+    bool specifyLevel = ((flags & wxRICHTEXT_SETSTYLE_SPECIFY_LEVEL) != 0);
+    bool renumber = ((flags & wxRICHTEXT_SETSTYLE_RENUMBER) != 0);
 
-wxRichTextParagraph::wxRichTextParagraph(wxRichTextObject* parent, wxTextAttrEx* style):
-    wxRichTextBox(parent)
-{
-    if (parent && !style)
-        SetAttributes(parent->GetAttributes());
-    if (style)
-        SetAttributes(*style);
-}
+    // Current number, if numbering
+    int n = startFrom;
 
-wxRichTextParagraph::wxRichTextParagraph(const wxString& text, wxRichTextObject* parent, wxTextAttrEx* style):
-    wxRichTextBox(parent)
-{
-    if (parent && !style)
-        SetAttributes(parent->GetAttributes());
-    if (style)
-        SetAttributes(*style);
+    wxASSERT (!specifyLevel || (specifyLevel && (specifiedLevel >= 0)));
 
-    AppendChild(new wxRichTextPlainText(text, this));
-}
+    // If we are associated with a control, make undoable; otherwise, apply immediately
+    // to the data.
 
-wxRichTextParagraph::~wxRichTextParagraph()
-{
-    ClearLines();
-}
+    bool haveControl = (GetRichTextCtrl() != NULL);
 
-/// Draw the item
-bool wxRichTextParagraph::Draw(wxDC& dc, const wxRichTextRange& WXUNUSED(range), const wxRichTextRange& selectionRange, const wxRect& WXUNUSED(rect), int WXUNUSED(descent), int style)
-{
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
-    wxTextAttrEx attr = GetCombinedAttributes();
-#else
-    const wxTextAttrEx& attr = GetAttributes();
-#endif
+    wxRichTextAction* action = NULL;
 
-    // Draw the bullet, if any
-    if (attr.GetBulletStyle() != wxTEXT_ATTR_BULLET_STYLE_NONE)
+    if (haveControl && withUndo)
     {
-        if (attr.GetLeftSubIndent() != 0)
+        action = new wxRichTextAction(NULL, _("Change List Style"), wxRICHTEXT_CHANGE_STYLE, & GetRichTextCtrl()->GetBuffer(), GetRichTextCtrl());
+        action->SetRange(range);
+        action->SetPosition(GetRichTextCtrl()->GetCaretPosition());
+    }
+
+    wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
+    while (node)
+    {
+        wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph);
+        wxASSERT (para != NULL);
+
+        if (para && para->GetChildCount() > 0)
         {
-            int spaceBeforePara = ConvertTenthsMMToPixels(dc, attr.GetParagraphSpacingBefore());
-            int leftIndent = ConvertTenthsMMToPixels(dc, attr.GetLeftIndent());
+            // Stop searching if we're beyond the range of interest
+            if (para->GetRange().GetStart() > range.GetEnd())
+                break;
 
-            if (attr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_BITMAP)
-            {
-                // TODO
-            }
-            else
+            if (!para->GetRange().IsOutside(range))
             {
-                wxString bulletText = GetBulletText();
-                if (!bulletText.empty())
+                // We'll be using a copy of the paragraph to make style changes,
+                // not updating the buffer directly.
+                wxRichTextParagraph* newPara wxDUMMY_INITIALIZE(NULL);
+
+                if (haveControl && withUndo)
                 {
-                    // Get the combined font, or if a font is specified for a symbol bullet,
-                    // create the font
+                    newPara = new wxRichTextParagraph(*para);
+                    action->GetNewParagraphs().AppendChild(newPara);
+
+                    // Also store the old ones for Undo
+                    action->GetOldParagraphs().AppendChild(new wxRichTextParagraph(*para));
+                }
+                else
+                    newPara = para;
 
-                    wxTextAttrEx bulletAttr(GetCombinedAttributes());
-                    wxFont font;
-                    if ((attr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_SYMBOL) && !attr.GetBulletFont().IsEmpty() && bulletAttr.GetFont().Ok())
+                if (def)
+                {
+                    int thisIndent = newPara->GetAttributes().GetLeftIndent();
+                    int thisLevel = specifyLevel ? specifiedLevel : def->FindLevelForIndent(thisIndent);
+
+                    // How is numbering going to work?
+                    // If we are renumbering, or numbering for the first time, we need to keep
+                    // track of the number for each level. But we might be simply applying a different
+                    // list style.
+                    // In Word, applying a style to several paragraphs, even if at different levels,
+                    // reverts the level back to the same one. So we could do the same here.
+                    // Renumbering will need to be done when we promote/demote a paragraph.
+
+                    // Apply the overall list style, and item style for this level
+                    wxTextAttr listStyle(def->GetCombinedStyleForLevel(thisLevel, styleSheet));
+                    wxRichTextApplyStyle(newPara->GetAttributes(), listStyle);
+
+                    // Now we need to do numbering
+                    if (renumber)
                     {
-                        font = (*wxTheFontList->FindOrCreateFont(bulletAttr.GetFont().GetPointSize(), bulletAttr.GetFont().GetFamily(),
-                                                bulletAttr.GetFont().GetStyle(), bulletAttr.GetFont().GetWeight(), bulletAttr.GetFont().GetUnderlined(),
-                                                attr.GetBulletFont()));
+                        newPara->GetAttributes().SetBulletNumber(n);
                     }
-                    else if (bulletAttr.GetFont().Ok())
-                        font = bulletAttr.GetFont();
-                    else
-                        font = (*wxNORMAL_FONT);
 
-                    dc.SetFont(font);
-
-                    if (bulletAttr.GetTextColour().Ok())
-                        dc.SetTextForeground(bulletAttr.GetTextColour());
+                    n ++;
+                }
+                else if (!newPara->GetAttributes().GetListStyleName().IsEmpty())
+                {
+                    // if def is NULL, remove list style, applying any associated paragraph style
+                    // to restore the attributes
 
-                    dc.SetBackgroundMode(wxTRANSPARENT);
+                    newPara->GetAttributes().SetListStyleName(wxEmptyString);
+                    newPara->GetAttributes().SetLeftIndent(0, 0);
+                    newPara->GetAttributes().SetBulletText(wxEmptyString);
 
-                    // Get line height from first line, if any
-                    wxRichTextLine* line = m_cachedLines.GetFirst() ? (wxRichTextLine* ) m_cachedLines.GetFirst()->GetData() : (wxRichTextLine*) NULL;
+                    // Eliminate the main list-related attributes
+                    newPara->GetAttributes().SetFlags(newPara->GetAttributes().GetFlags() & ~wxTEXT_ATTR_LEFT_INDENT & ~wxTEXT_ATTR_BULLET_STYLE & ~wxTEXT_ATTR_BULLET_NUMBER & ~wxTEXT_ATTR_BULLET_TEXT & wxTEXT_ATTR_LIST_STYLE_NAME);
 
-                    wxPoint linePos;
-                    int lineHeight wxDUMMY_INITIALIZE(0);
-                    if (line)
+                    if (styleSheet && !newPara->GetAttributes().GetParagraphStyleName().IsEmpty())
                     {
-                        lineHeight = line->GetSize().y;
-                        linePos = line->GetPosition() + GetPosition();
-                    }
-                    else
-                    {
-                        lineHeight = dc.GetCharHeight();
-                        linePos = GetPosition();
-                        linePos.y += spaceBeforePara;
+                        wxRichTextParagraphStyleDefinition* def = styleSheet->FindParagraphStyle(newPara->GetAttributes().GetParagraphStyleName());
+                        if (def)
+                        {
+                            newPara->GetAttributes() = def->GetStyleMergedWithBase(styleSheet);
+                        }
                     }
-
-                    int charHeight = dc.GetCharHeight();
-
-                    int x = GetPosition().x + leftIndent;
-                    int y = linePos.y + (lineHeight - charHeight);
-
-                    dc.DrawText(bulletText, x, y);
                 }
             }
         }
+
+        node = node->GetNext();
     }
 
-    // Draw the range for each line, one object at a time.
+    // Do action, or delay it until end of batch.
+    if (haveControl && withUndo)
+        GetRichTextCtrl()->GetBuffer().SubmitAction(action);
 
-    wxRichTextLineList::compatibility_iterator node = m_cachedLines.GetFirst();
-    while (node)
+    return true;
+}
+
+bool wxRichTextParagraphLayoutBox::SetListStyle(const wxRichTextRange& range, const wxString& defName, int flags, int startFrom, int specifiedLevel)
+{
+    if (GetStyleSheet())
     {
-        wxRichTextLine* line = node->GetData();
-        wxRichTextRange lineRange = line->GetAbsoluteRange();
+        wxRichTextListStyleDefinition* def = GetStyleSheet()->FindListStyle(defName);
+        if (def)
+            return SetListStyle(range, def, flags, startFrom, specifiedLevel);
+    }
+    return false;
+}
 
-        int maxDescent = line->GetDescent();
+/// Clear list for given range
+bool wxRichTextParagraphLayoutBox::ClearListStyle(const wxRichTextRange& range, int flags)
+{
+    return SetListStyle(range, NULL, flags);
+}
 
-        // Lines are specified relative to the paragraph
+/// Number/renumber any list elements in the given range
+bool wxRichTextParagraphLayoutBox::NumberList(const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int startFrom, int specifiedLevel)
+{
+    return DoNumberList(range, range, 0, def, flags, startFrom, specifiedLevel);
+}
 
-        wxPoint linePosition = line->GetPosition() + GetPosition();
-        wxPoint objectPosition = linePosition;
+/// Number/renumber any list elements in the given range. Also do promotion or demotion of items, if specified
+bool wxRichTextParagraphLayoutBox::DoNumberList(const wxRichTextRange& range, const wxRichTextRange& promotionRange, int promoteBy,
+                                                wxRichTextListStyleDefinition* def, int flags, int startFrom, int specifiedLevel)
+{
+    wxRichTextStyleSheet* styleSheet = GetStyleSheet();
 
-        // Loop through objects until we get to the one within range
-        wxRichTextObjectList::compatibility_iterator node2 = m_children.GetFirst();
-        while (node2)
-        {
-            wxRichTextObject* child = node2->GetData();
-            if (!child->GetRange().IsOutside(lineRange))
-            {
-                // Draw this part of the line at the correct position
-                wxRichTextRange objectRange(child->GetRange());
-                objectRange.LimitTo(lineRange);
+    bool withUndo = ((flags & wxRICHTEXT_SETSTYLE_WITH_UNDO) != 0);
+    // bool applyMinimal = ((flags & wxRICHTEXT_SETSTYLE_OPTIMIZE) != 0);
+#if wxDEBUG_LEVEL
+    bool specifyLevel = ((flags & wxRICHTEXT_SETSTYLE_SPECIFY_LEVEL) != 0);
+#endif
 
-                wxSize objectSize;
-                int descent = 0;
-                child->GetRangeSize(objectRange, objectSize, descent, dc, wxRICHTEXT_UNFORMATTED, objectPosition);
+    bool renumber = ((flags & wxRICHTEXT_SETSTYLE_RENUMBER) != 0);
 
-                // Use the child object's width, but the whole line's height
-                wxRect childRect(objectPosition, wxSize(objectSize.x, line->GetSize().y));
-                child->Draw(dc, objectRange, selectionRange, childRect, maxDescent, style);
+    // Max number of levels
+    const int maxLevels = 10;
 
-                objectPosition.x += objectSize.x;
-            }
-            else if (child->GetRange().GetStart() > lineRange.GetEnd())
-                // Can break out of inner loop now since we've passed this line's range
-                break;
+    // The level we're looking at now
+    int currentLevel = -1;
 
-            node2 = node2->GetNext();
-        }
+    // The item number for each level
+    int levels[maxLevels];
+    int i;
 
-        node = node->GetNext();
+    // Reset all numbering
+    for (i = 0; i < maxLevels; i++)
+    {
+        if (startFrom != -1)
+            levels[i] = startFrom-1;
+        else if (renumber) // start again
+            levels[i] = 0;
+        else
+            levels[i] = -1; // start from the number we found, if any
     }
 
-    return true;
-}
+    wxASSERT(!specifyLevel || (specifyLevel && (specifiedLevel >= 0)));
 
-/// Lay the item out
-bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
-{
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
-    wxTextAttrEx attr = GetCombinedAttributes();
-#else
-    const wxTextAttrEx& attr = GetAttributes();
-#endif
+    // If we are associated with a control, make undoable; otherwise, apply immediately
+    // to the data.
 
-    // ClearLines();
+    bool haveControl = (GetRichTextCtrl() != NULL);
 
-    // Increase the size of the paragraph due to spacing
-    int spaceBeforePara = ConvertTenthsMMToPixels(dc, attr.GetParagraphSpacingBefore());
-    int spaceAfterPara = ConvertTenthsMMToPixels(dc, attr.GetParagraphSpacingAfter());
-    int leftIndent = ConvertTenthsMMToPixels(dc, attr.GetLeftIndent());
-    int leftSubIndent = ConvertTenthsMMToPixels(dc, attr.GetLeftSubIndent());
-    int rightIndent = ConvertTenthsMMToPixels(dc, attr.GetRightIndent());
+    wxRichTextAction* action = NULL;
 
-    int lineSpacing = 0;
+    if (haveControl && withUndo)
+    {
+        action = new wxRichTextAction(NULL, _("Renumber List"), wxRICHTEXT_CHANGE_STYLE, & GetRichTextCtrl()->GetBuffer(), GetRichTextCtrl());
+        action->SetRange(range);
+        action->SetPosition(GetRichTextCtrl()->GetCaretPosition());
+    }
+
+    wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
+    while (node)
+    {
+        wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph);
+        wxASSERT (para != NULL);
+
+        if (para && para->GetChildCount() > 0)
+        {
+            // Stop searching if we're beyond the range of interest
+            if (para->GetRange().GetStart() > range.GetEnd())
+                break;
+
+            if (!para->GetRange().IsOutside(range))
+            {
+                // We'll be using a copy of the paragraph to make style changes,
+                // not updating the buffer directly.
+                wxRichTextParagraph* newPara wxDUMMY_INITIALIZE(NULL);
+
+                if (haveControl && withUndo)
+                {
+                    newPara = new wxRichTextParagraph(*para);
+                    action->GetNewParagraphs().AppendChild(newPara);
+
+                    // Also store the old ones for Undo
+                    action->GetOldParagraphs().AppendChild(new wxRichTextParagraph(*para));
+                }
+                else
+                    newPara = para;
+
+                wxRichTextListStyleDefinition* defToUse = def;
+                if (!defToUse)
+                {
+                    if (styleSheet && !newPara->GetAttributes().GetListStyleName().IsEmpty())
+                        defToUse = styleSheet->FindListStyle(newPara->GetAttributes().GetListStyleName());
+                }
+
+                if (defToUse)
+                {
+                    int thisIndent = newPara->GetAttributes().GetLeftIndent();
+                    int thisLevel = defToUse->FindLevelForIndent(thisIndent);
+
+                    // If we've specified a level to apply to all, change the level.
+                    if (specifiedLevel != -1)
+                        thisLevel = specifiedLevel;
+
+                    // Do promotion if specified
+                    if ((promoteBy != 0) && !para->GetRange().IsOutside(promotionRange))
+                    {
+                        thisLevel = thisLevel - promoteBy;
+                        if (thisLevel < 0)
+                            thisLevel = 0;
+                        if (thisLevel > 9)
+                            thisLevel = 9;
+                    }
+
+                    // Apply the overall list style, and item style for this level
+                    wxTextAttr listStyle(defToUse->GetCombinedStyleForLevel(thisLevel, styleSheet));
+                    wxRichTextApplyStyle(newPara->GetAttributes(), listStyle);
+
+                    // OK, we've (re)applied the style, now let's get the numbering right.
+
+                    if (currentLevel == -1)
+                        currentLevel = thisLevel;
+
+                    // Same level as before, do nothing except increment level's number afterwards
+                    if (currentLevel == thisLevel)
+                    {
+                    }
+                    // A deeper level: start renumbering all levels after current level
+                    else if (thisLevel > currentLevel)
+                    {
+                        for (i = currentLevel+1; i <= thisLevel; i++)
+                        {
+                            levels[i] = 0;
+                        }
+                        currentLevel = thisLevel;
+                    }
+                    else if (thisLevel < currentLevel)
+                    {
+                        currentLevel = thisLevel;
+                    }
+
+                    // Use the current numbering if -1 and we have a bullet number already
+                    if (levels[currentLevel] == -1)
+                    {
+                        if (newPara->GetAttributes().HasBulletNumber())
+                            levels[currentLevel] = newPara->GetAttributes().GetBulletNumber();
+                        else
+                            levels[currentLevel] = 1;
+                    }
+                    else
+                    {
+                        levels[currentLevel] ++;
+                    }
+
+                    newPara->GetAttributes().SetBulletNumber(levels[currentLevel]);
+
+                    // Create the bullet text if an outline list
+                    if (listStyle.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_OUTLINE)
+                    {
+                        wxString text;
+                        for (i = 0; i <= currentLevel; i++)
+                        {
+                            if (!text.IsEmpty())
+                                text += wxT(".");
+                            text += wxString::Format(wxT("%d"), levels[i]);
+                        }
+                        newPara->GetAttributes().SetBulletText(text);
+                    }
+                }
+            }
+        }
+
+        node = node->GetNext();
+    }
+
+    // Do action, or delay it until end of batch.
+    if (haveControl && withUndo)
+        GetRichTextCtrl()->GetBuffer().SubmitAction(action);
+
+    return true;
+}
+
+bool wxRichTextParagraphLayoutBox::NumberList(const wxRichTextRange& range, const wxString& defName, int flags, int startFrom, int specifiedLevel)
+{
+    if (GetStyleSheet())
+    {
+        wxRichTextListStyleDefinition* def = NULL;
+        if (!defName.IsEmpty())
+            def = GetStyleSheet()->FindListStyle(defName);
+        return NumberList(range, def, flags, startFrom, specifiedLevel);
+    }
+    return false;
+}
+
+/// Promote the list items within the given range. promoteBy can be a positive or negative number, e.g. 1 or -1
+bool wxRichTextParagraphLayoutBox::PromoteList(int promoteBy, const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int specifiedLevel)
+{
+    // TODO
+    // One strategy is to first work out the range within which renumbering must occur. Then could pass these two ranges
+    // to NumberList with a flag indicating promotion is required within one of the ranges.
+    // Find first and last paragraphs in range. Then for first, calculate new indentation and look back until we find
+    // a paragraph that either has no list style, or has one that is different or whose indentation is less.
+    // We start renumbering from the para after that different para we found. We specify that the numbering of that
+    // list position will start from 1.
+    // Similarly, we look after the last para in the promote range for an indentation that is less (or no list style).
+    // We can end the renumbering at this point.
+
+    // For now, only renumber within the promotion range.
+
+    return DoNumberList(range, range, promoteBy, def, flags, 1, specifiedLevel);
+}
+
+bool wxRichTextParagraphLayoutBox::PromoteList(int promoteBy, const wxRichTextRange& range, const wxString& defName, int flags, int specifiedLevel)
+{
+    if (GetStyleSheet())
+    {
+        wxRichTextListStyleDefinition* def = NULL;
+        if (!defName.IsEmpty())
+            def = GetStyleSheet()->FindListStyle(defName);
+        return PromoteList(promoteBy, range, def, flags, specifiedLevel);
+    }
+    return false;
+}
+
+/// Fills in the attributes for numbering a paragraph after previousParagraph. It also finds the
+/// position of the paragraph that it had to start looking from.
+bool wxRichTextParagraphLayoutBox::FindNextParagraphNumber(wxRichTextParagraph* previousParagraph, wxTextAttr& attr) const
+{
+    if (!previousParagraph->GetAttributes().HasFlag(wxTEXT_ATTR_BULLET_STYLE) || previousParagraph->GetAttributes().GetBulletStyle() == wxTEXT_ATTR_BULLET_STYLE_NONE)
+        return false;
+
+    wxRichTextStyleSheet* styleSheet = GetStyleSheet();
+    if (styleSheet && !previousParagraph->GetAttributes().GetListStyleName().IsEmpty())
+    {
+        wxRichTextListStyleDefinition* def = styleSheet->FindListStyle(previousParagraph->GetAttributes().GetListStyleName());
+        if (def)
+        {
+            // int thisIndent = previousParagraph->GetAttributes().GetLeftIndent();
+            // int thisLevel = def->FindLevelForIndent(thisIndent);
+
+            bool isOutline = (previousParagraph->GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_OUTLINE) != 0;
+
+            attr.SetFlags(previousParagraph->GetAttributes().GetFlags() & (wxTEXT_ATTR_BULLET_STYLE|wxTEXT_ATTR_BULLET_NUMBER|wxTEXT_ATTR_BULLET_TEXT|wxTEXT_ATTR_BULLET_NAME));
+            if (previousParagraph->GetAttributes().HasBulletName())
+                attr.SetBulletName(previousParagraph->GetAttributes().GetBulletName());
+            attr.SetBulletStyle(previousParagraph->GetAttributes().GetBulletStyle());
+            attr.SetListStyleName(previousParagraph->GetAttributes().GetListStyleName());
+
+            int nextNumber = previousParagraph->GetAttributes().GetBulletNumber() + 1;
+            attr.SetBulletNumber(nextNumber);
+
+            if (isOutline)
+            {
+                wxString text = previousParagraph->GetAttributes().GetBulletText();
+                if (!text.IsEmpty())
+                {
+                    int pos = text.Find(wxT('.'), true);
+                    if (pos != wxNOT_FOUND)
+                    {
+                        text = text.Mid(0, text.Length() - pos - 1);
+                    }
+                    else
+                        text = wxEmptyString;
+                    if (!text.IsEmpty())
+                        text += wxT(".");
+                    text += wxString::Format(wxT("%d"), nextNumber);
+                    attr.SetBulletText(text);
+                }
+            }
+
+            return true;
+        }
+        else
+            return false;
+    }
+    else
+        return false;
+}
+
+/*!
+ * wxRichTextParagraph
+ * This object represents a single paragraph (or in a straight text editor, a line).
+ */
+
+IMPLEMENT_DYNAMIC_CLASS(wxRichTextParagraph, wxRichTextBox)
+
+wxArrayInt wxRichTextParagraph::sm_defaultTabs;
+
+wxRichTextParagraph::wxRichTextParagraph(wxRichTextObject* parent, wxTextAttr* style):
+    wxRichTextBox(parent)
+{
+    if (style)
+        SetAttributes(*style);
+}
+
+wxRichTextParagraph::wxRichTextParagraph(const wxString& text, wxRichTextObject* parent, wxTextAttr* paraStyle, wxTextAttr* charStyle):
+    wxRichTextBox(parent)
+{
+    if (paraStyle)
+        SetAttributes(*paraStyle);
+
+    AppendChild(new wxRichTextPlainText(text, this, charStyle));
+}
+
+wxRichTextParagraph::~wxRichTextParagraph()
+{
+    ClearLines();
+}
+
+/// Draw the item
+bool wxRichTextParagraph::Draw(wxDC& dc, const wxRichTextRange& range, const wxRichTextRange& selectionRange, const wxRect& rect, int WXUNUSED(descent), int style)
+{
+    wxTextAttr attr = GetCombinedAttributes();
+
+    // Draw the bullet, if any
+    if (attr.GetBulletStyle() != wxTEXT_ATTR_BULLET_STYLE_NONE)
+    {
+        if (attr.GetLeftSubIndent() != 0)
+        {
+            int spaceBeforePara = ConvertTenthsMMToPixels(dc, attr.GetParagraphSpacingBefore());
+            int leftIndent = ConvertTenthsMMToPixels(dc, attr.GetLeftIndent());
+
+            wxTextAttr bulletAttr(GetCombinedAttributes());
+
+            // Combine with the font of the first piece of content, if one is specified
+            if (GetChildren().GetCount() > 0)
+            {
+                wxRichTextObject* firstObj = (wxRichTextObject*) GetChildren().GetFirst()->GetData();
+                if (firstObj->GetAttributes().HasFont())
+                {
+                    wxRichTextApplyStyle(bulletAttr, firstObj->GetAttributes());
+                }
+            }
+
+            // Get line height from first line, if any
+            wxRichTextLine* line = m_cachedLines.GetFirst() ? (wxRichTextLine* ) m_cachedLines.GetFirst()->GetData() : NULL;
+
+            wxPoint linePos;
+            int lineHeight wxDUMMY_INITIALIZE(0);
+            if (line)
+            {
+                lineHeight = line->GetSize().y;
+                linePos = line->GetPosition() + GetPosition();
+            }
+            else
+            {
+                wxFont font;
+                if (bulletAttr.HasFont() && GetBuffer())
+                    font = GetBuffer()->GetFontTable().FindFont(bulletAttr);
+                else
+                    font = (*wxNORMAL_FONT);
+
+                wxCheckSetFont(dc, font);
+
+                lineHeight = dc.GetCharHeight();
+                linePos = GetPosition();
+                linePos.y += spaceBeforePara;
+            }
+
+            wxRect bulletRect(GetPosition().x + leftIndent, linePos.y, linePos.x - (GetPosition().x + leftIndent), lineHeight);
+
+            if (attr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_BITMAP)
+            {
+                if (wxRichTextBuffer::GetRenderer())
+                    wxRichTextBuffer::GetRenderer()->DrawBitmapBullet(this, dc, bulletAttr, bulletRect);
+            }
+            else if (attr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_STANDARD)
+            {
+                if (wxRichTextBuffer::GetRenderer())
+                    wxRichTextBuffer::GetRenderer()->DrawStandardBullet(this, dc, bulletAttr, bulletRect);
+            }
+            else
+            {
+                wxString bulletText = GetBulletText();
+
+                if (!bulletText.empty() && wxRichTextBuffer::GetRenderer())
+                    wxRichTextBuffer::GetRenderer()->DrawTextBullet(this, dc, bulletAttr, bulletRect, bulletText);
+            }
+        }
+    }
+
+    // Draw the range for each line, one object at a time.
+
+    wxRichTextLineList::compatibility_iterator node = m_cachedLines.GetFirst();
+    while (node)
+    {
+        wxRichTextLine* line = node->GetData();
+        wxRichTextRange lineRange = line->GetAbsoluteRange();
+
+        // Lines are specified relative to the paragraph
+
+        wxPoint linePosition = line->GetPosition() + GetPosition();
+
+        // Don't draw if off the screen
+        if (((style & wxRICHTEXT_DRAW_IGNORE_CACHE) != 0) || ((linePosition.y + line->GetSize().y) >= rect.y && linePosition.y <= rect.y + rect.height))
+        {
+            wxPoint objectPosition = linePosition;
+            int maxDescent = line->GetDescent();
+
+            // Loop through objects until we get to the one within range
+            wxRichTextObjectList::compatibility_iterator node2 = m_children.GetFirst();
+
+            int i = 0;
+            while (node2)
+            {
+                wxRichTextObject* child = node2->GetData();
+
+                if (child->GetRange().GetLength() > 0 && !child->GetRange().IsOutside(lineRange) && !lineRange.IsOutside(range))
+                {
+                    // Draw this part of the line at the correct position
+                    wxRichTextRange objectRange(child->GetRange());
+                    objectRange.LimitTo(lineRange);
+
+                    wxSize objectSize;
+#if wxRICHTEXT_USE_OPTIMIZED_LINE_DRAWING && wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS
+                    if (i < (int) line->GetObjectSizes().GetCount())
+                    {
+                        objectSize.x = line->GetObjectSizes()[(size_t) i];
+                    }
+                    else
+#endif
+                    {
+                        int descent = 0;
+                        child->GetRangeSize(objectRange, objectSize, descent, dc, wxRICHTEXT_UNFORMATTED, objectPosition);
+                    }
+
+                    // Use the child object's width, but the whole line's height
+                    wxRect childRect(objectPosition, wxSize(objectSize.x, line->GetSize().y));
+                    child->Draw(dc, objectRange, selectionRange, childRect, maxDescent, style);
+
+                    objectPosition.x += objectSize.x;
+                    i ++;
+                }
+                else if (child->GetRange().GetStart() > lineRange.GetEnd())
+                    // Can break out of inner loop now since we've passed this line's range
+                    break;
+
+                node2 = node2->GetNext();
+            }
+        }
+
+        node = node->GetNext();
+    }
+
+    return true;
+}
+
+// Get the range width using partial extents calculated for the whole paragraph.
+static int wxRichTextGetRangeWidth(const wxRichTextParagraph& para, const wxRichTextRange& range, const wxArrayInt& partialExtents)
+{
+    wxASSERT(partialExtents.GetCount() >= (size_t) range.GetLength());
+
+    if (partialExtents.GetCount() < (size_t) range.GetLength())
+        return 0;
+
+    int leftMostPos = 0;
+    if (range.GetStart() - para.GetRange().GetStart() > 0)
+        leftMostPos = partialExtents[range.GetStart() - para.GetRange().GetStart() - 1];
+
+    int rightMostPos = partialExtents[range.GetEnd() - para.GetRange().GetStart()];
+
+    int w = rightMostPos - leftMostPos;
+
+    return w;
+}
+
+/// Lay the item out
+bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
+{
+    wxTextAttr attr = GetCombinedAttributes();
+
+    // ClearLines();
+
+    // Increase the size of the paragraph due to spacing
+    int spaceBeforePara = ConvertTenthsMMToPixels(dc, attr.GetParagraphSpacingBefore());
+    int spaceAfterPara = ConvertTenthsMMToPixels(dc, attr.GetParagraphSpacingAfter());
+    int leftIndent = ConvertTenthsMMToPixels(dc, attr.GetLeftIndent());
+    int leftSubIndent = ConvertTenthsMMToPixels(dc, attr.GetLeftSubIndent());
+    int rightIndent = ConvertTenthsMMToPixels(dc, attr.GetRightIndent());
+
+    int lineSpacing = 0;
 
     // Let's assume line spacing of 10 is normal, 15 is 1.5, 20 is 2, etc.
-    if (attr.GetLineSpacing() > 10 && attr.GetFont().Ok())
+    if (attr.GetLineSpacing() != 10 && GetBuffer())
     {
-        dc.SetFont(attr.GetFont());
+        wxFont font(GetBuffer()->GetFontTable().FindFont(attr));
+        wxCheckSetFont(dc, font);
         lineSpacing = (ConvertTenthsMMToPixels(dc, dc.GetCharHeight()) * attr.GetLineSpacing())/10;
     }
 
@@ -2638,21 +3360,52 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
     wxPoint currentPosition(0, spaceBeforePara); // We will calculate lines relative to paragraph
     int lineHeight = 0;
     int maxWidth = 0;
+    int maxAscent = 0;
     int maxDescent = 0;
-
     int lineCount = 0;
 
+    wxRichTextObjectList::compatibility_iterator node;
+
+#if wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS
+    wxUnusedVar(style);
+    wxArrayInt partialExtents;
+
+    wxSize paraSize;
+    int paraDescent;
+
+    // This calculates the partial text extents
+    GetRangeSize(GetRange(), paraSize, paraDescent, dc, wxRICHTEXT_UNFORMATTED|wxRICHTEXT_CACHE_SIZE, wxPoint(0,0), & partialExtents);
+#else
+    node = m_children.GetFirst();
+    while (node)
+    {
+        wxRichTextObject* child = node->GetData();
+
+        child->SetCachedSize(wxDefaultSize);
+        child->Layout(dc, rect, style);
+
+        node = node->GetNext();
+    }
+
+#endif
+
     // Split up lines
 
     // We may need to go back to a previous child, in which case create the new line,
     // find the child corresponding to the start position of the string, and
     // continue.
 
-    wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
+    node = m_children.GetFirst();
     while (node)
     {
         wxRichTextObject* child = node->GetData();
 
+        if (child->GetRange().GetLength() == 0)
+        {
+            node = node->GetNext();
+            continue;
+        }
+
         // If this is e.g. a composite text box, it will need to be laid out itself.
         // But if just a text fragment or image, for example, this will
         // do nothing. NB: won't we need to set the position after layout?
@@ -2660,8 +3413,6 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
         // can't tell the position until the size is determined. So possibly introduce
         // another layout phase.
 
-        child->Layout(dc, rect, style);
-
         // Available width depends on whether we're on the first or subsequent lines
         int availableSpaceForText = (lineCount == 0 ? availableTextSpaceFirstLine : availableTextSpaceSubsequentLines);
 
@@ -2671,23 +3422,45 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
         // and found a suitable point some way into the child. So get the size for the fragment
         // if necessary.
 
+        long nextBreakPos = GetFirstLineBreakPosition(lastEndPos+1);
+        long lastPosToUse = child->GetRange().GetEnd();
+        bool lineBreakInThisObject = (nextBreakPos > -1 && nextBreakPos <= child->GetRange().GetEnd());
+
+        if (lineBreakInThisObject)
+            lastPosToUse = nextBreakPos;
+
         wxSize childSize;
         int childDescent = 0;
-        if (lastEndPos == child->GetRange().GetStart() - 1)
+
+        if ((nextBreakPos == -1) && (lastEndPos == child->GetRange().GetStart() - 1)) // i.e. we want to get the whole thing
         {
             childSize = child->GetCachedSize();
             childDescent = child->GetDescent();
         }
         else
-            GetRangeSize(wxRichTextRange(lastEndPos+1, child->GetRange().GetEnd()), childSize, childDescent, dc, wxRICHTEXT_UNFORMATTED,rect.GetPosition());
+        {
+#if wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS
+            // Get height only, then the width using the partial extents
+            GetRangeSize(wxRichTextRange(lastEndPos+1, lastPosToUse), childSize, childDescent, dc, wxRICHTEXT_UNFORMATTED|wxRICHTEXT_HEIGHT_ONLY);
+            childSize.x = wxRichTextGetRangeWidth(*this, wxRichTextRange(lastEndPos+1, lastPosToUse), partialExtents);
+#else
+            GetRangeSize(wxRichTextRange(lastEndPos+1, lastPosToUse), childSize, childDescent, dc, wxRICHTEXT_UNFORMATTED, rect.GetPosition());
+#endif
+        }
 
-        if (childSize.x + currentWidth > availableSpaceForText)
+        // Cases:
+        // 1) There was a line break BEFORE the natural break
+        // 2) There was a line break AFTER the natural break
+        // 3) The child still fits (carry on)
+
+        if ((lineBreakInThisObject && (childSize.x + currentWidth <= availableSpaceForText)) ||
+            (childSize.x + currentWidth > availableSpaceForText))
         {
             long wrapPosition = 0;
 
             // Find a place to wrap. This may walk back to previous children,
             // for example if a word spans several objects.
-            if (!FindWrapPosition(wxRichTextRange(lastCompletedEndPos+1, child->GetRange().GetEnd()), dc, availableSpaceForText, wrapPosition))
+            if (!FindWrapPosition(wxRichTextRange(lastCompletedEndPos+1, child->GetRange().GetEnd()), dc, availableSpaceForText, wrapPosition, & partialExtents))
             {
                 // If the function failed, just cut it off at the end of this child.
                 wrapPosition = child->GetRange().GetEnd();
@@ -2702,10 +3475,23 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
             // Let's find the actual size of the current line now
             wxSize actualSize;
             wxRichTextRange actualRange(lastCompletedEndPos+1, wrapPosition);
+
+            /// Use previous descent, not the wrapping descent we just found, since this may be too big
+            /// for the fragment we're about to add.
+            childDescent = maxDescent;
+
+#if wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS
+            // Get height only, then the width using the partial extents
+            GetRangeSize(actualRange, actualSize, childDescent, dc, wxRICHTEXT_UNFORMATTED|wxRICHTEXT_HEIGHT_ONLY);
+            actualSize.x = wxRichTextGetRangeWidth(*this, actualRange, partialExtents);
+#else
             GetRangeSize(actualRange, actualSize, childDescent, dc, wxRICHTEXT_UNFORMATTED);
+#endif
+
             currentWidth = actualSize.x;
-            lineHeight = wxMax(lineHeight, actualSize.y);
             maxDescent = wxMax(childDescent, maxDescent);
+            maxAscent = wxMax(actualSize.y-childDescent, maxAscent);
+            lineHeight = maxDescent + maxAscent;
 
             // Add a new line
             wxRichTextLine* line = AllocateLine(lineCount);
@@ -2721,6 +3507,7 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
             currentPosition.y += lineSpacing;
             currentWidth = 0;
             maxDescent = 0;
+            maxAscent = 0;
             maxWidth = wxMax(maxWidth, currentWidth);
 
             lineCount ++;
@@ -2744,8 +3531,9 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
         {
             // We still fit, so don't add a line, and keep going
             currentWidth += childSize.x;
-            lineHeight = wxMax(lineHeight, childSize.y);
             maxDescent = wxMax(childDescent, maxDescent);
+            maxAscent = wxMax(childSize.y-childDescent, maxAscent);
+            lineHeight = maxDescent + maxAscent;
 
             maxWidth = wxMax(maxWidth, currentWidth);
             lastEndPos = child->GetRange().GetEnd();
@@ -2769,10 +3557,10 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
 
         line->SetPosition(currentPosition);
 
-        if (lineHeight == 0)
+        if (lineHeight == 0 && GetBuffer())
         {
-            if (attr.GetFont().Ok())
-                dc.SetFont(attr.GetFont());
+            wxFont font(GetBuffer()->GetFontTable().FindFont(attr));
+            wxCheckSetFont(dc, font);
             lineHeight = dc.GetCharHeight();
         }
         if (maxDescent == 0)
@@ -2792,17 +3580,59 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
     ClearUnusedLines(lineCount);
 
     // Apply styles to wrapped lines
-    ApplyParagraphStyle(attr, rect);
+    ApplyParagraphStyle(attr, rect, dc);
 
     SetCachedSize(wxSize(maxWidth, currentPosition.y + spaceBeforePara + spaceAfterPara));
 
     m_dirty = false;
 
+#if wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS
+#if wxRICHTEXT_USE_OPTIMIZED_LINE_DRAWING
+    // Use the text extents to calculate the size of each fragment in each line
+    wxRichTextLineList::compatibility_iterator lineNode = m_cachedLines.GetFirst();
+    while (lineNode)
+    {
+        wxRichTextLine* line = lineNode->GetData();
+        wxRichTextRange lineRange = line->GetAbsoluteRange();
+
+        // Loop through objects until we get to the one within range
+        wxRichTextObjectList::compatibility_iterator node2 = m_children.GetFirst();
+
+        while (node2)
+        {
+            wxRichTextObject* child = node2->GetData();
+
+            if (child->GetRange().GetLength() > 0 && !child->GetRange().IsOutside(lineRange))
+            {
+                wxRichTextRange rangeToUse = lineRange;
+                rangeToUse.LimitTo(child->GetRange());
+
+                // Find the size of the child from the text extents, and store in an array
+                // for drawing later
+                int left = 0;
+                if (rangeToUse.GetStart() > GetRange().GetStart())
+                    left = partialExtents[(rangeToUse.GetStart()-1) - GetRange().GetStart()];
+                int right = partialExtents[rangeToUse.GetEnd() - GetRange().GetStart()];
+                int sz = right - left;
+                line->GetObjectSizes().Add(sz);
+            }
+            else if (child->GetRange().GetStart() > lineRange.GetEnd())
+                // Can break out of inner loop now since we've passed this line's range
+                break;
+
+            node2 = node2->GetNext();
+        }
+
+        lineNode = lineNode->GetNext();
+    }
+#endif
+#endif
+
     return true;
 }
 
 /// Apply paragraph styles, such as centering, to wrapped lines
-void wxRichTextParagraph::ApplyParagraphStyle(const wxTextAttrEx& attr, const wxRect& rect)
+void wxRichTextParagraph::ApplyParagraphStyle(const wxTextAttr& attr, const wxRect& rect, wxDC& dc)
 {
     if (!attr.HasAlignment())
         return;
@@ -2818,12 +3648,14 @@ void wxRichTextParagraph::ApplyParagraphStyle(const wxTextAttrEx& attr, const wx
         // centering, right-justification
         if (attr.HasAlignment() && GetAttributes().GetAlignment() == wxTEXT_ALIGNMENT_CENTRE)
         {
-            pos.x = (rect.GetWidth() - size.x)/2 + pos.x;
+            int rightIndent = ConvertTenthsMMToPixels(dc, attr.GetRightIndent());
+            pos.x = (rect.GetWidth() - pos.x - rightIndent - size.x)/2 + pos.x;
             line->SetPosition(pos);
         }
         else if (attr.HasAlignment() && GetAttributes().GetAlignment() == wxTEXT_ALIGNMENT_RIGHT)
         {
-            pos.x = rect.GetRight() - size.x;
+            int rightIndent = ConvertTenthsMMToPixels(dc, attr.GetRightIndent());
+            pos.x = rect.GetWidth() - size.x - rightIndent;
             line->SetPosition(pos);
         }
 
@@ -2914,7 +3746,7 @@ void wxRichTextParagraph::ClearLines()
 
 /// Get/set the object size for the given range. Returns false if the range
 /// is invalid for this object.
-bool wxRichTextParagraph::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& descent, wxDC& dc, int flags, wxPoint position) const
+bool wxRichTextParagraph::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& descent, wxDC& dc, int flags, wxPoint position, wxArrayInt* partialExtents) const
 {
     if (!range.IsWithin(GetRange()))
         return false;
@@ -2926,9 +3758,17 @@ bool wxRichTextParagraph::GetRangeSize(const wxRichTextRange& range, wxSize& siz
 
         wxSize sz;
 
+        wxArrayInt childExtents;
+        wxArrayInt* p;
+        if (partialExtents)
+            p = & childExtents;
+        else
+            p = NULL;
+
         wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
         while (node)
         {
+
             wxRichTextObject* child = node->GetData();
             if (!child->GetRange().IsOutside(range))
             {
@@ -2938,12 +3778,47 @@ bool wxRichTextParagraph::GetRangeSize(const wxRichTextRange& range, wxSize& siz
                 rangeToUse.LimitTo(child->GetRange());
                 int childDescent = 0;
 
-                if (child->GetRangeSize(rangeToUse, childSize, childDescent, dc, flags, position))
+                // At present wxRICHTEXT_HEIGHT_ONLY is only fast if we're already cached the size,
+                // but it's only going to be used after caching has taken place.
+                if ((flags & wxRICHTEXT_HEIGHT_ONLY) && child->GetCachedSize().y != 0)
+                {
+                    childDescent = child->GetDescent();
+                    childSize = child->GetCachedSize();
+
+                    sz.y = wxMax(sz.y, childSize.y);
+                    sz.x += childSize.x;
+                    descent = wxMax(descent, childDescent);
+                }
+                else if (child->GetRangeSize(rangeToUse, childSize, childDescent, dc, flags, wxPoint(position.x + sz.x, position.y), p))
                 {
                     sz.y = wxMax(sz.y, childSize.y);
                     sz.x += childSize.x;
                     descent = wxMax(descent, childDescent);
+
+                    if ((flags & wxRICHTEXT_CACHE_SIZE) && (rangeToUse == child->GetRange()))
+                    {
+                        child->SetCachedSize(childSize);
+                        child->SetDescent(childDescent);
+                    }
+
+                    if (partialExtents)
+                    {
+                        int lastSize;
+                        if (partialExtents->GetCount() > 0)
+                            lastSize = (*partialExtents)[partialExtents->GetCount()-1];
+                        else
+                            lastSize = 0;
+
+                        size_t i;
+                        for (i = 0; i < childExtents.GetCount(); i++)
+                        {
+                            partialExtents->Add(childExtents[i] + lastSize);
+                        }
+                    }
                 }
+
+                if (p)
+                    p->Clear();
             }
 
             node = node->GetNext();
@@ -2983,7 +3858,7 @@ bool wxRichTextParagraph::GetRangeSize(const wxRichTextRange& range, wxSize& siz
 
                         wxSize childSize;
                         int childDescent = 0;
-                        if (child->GetRangeSize(rangeToUse, childSize, childDescent, dc, flags, position))
+                        if (child->GetRangeSize(rangeToUse, childSize, childDescent, dc, flags, wxPoint(position.x + sz.x, position.y)))
                         {
                             lineSize.y = wxMax(lineSize.y, childSize.y);
                             lineSize.x += childSize.x;
@@ -3112,20 +3987,53 @@ int wxRichTextParagraph::HitTest(wxDC& dc, const wxPoint& pt, long& textPosition
         wxSize lineSize = line->GetSize();
         wxRichTextRange lineRange = line->GetAbsoluteRange();
 
-        if (pt.y >= linePos.y && pt.y <= linePos.y + lineSize.y)
+        if (pt.y <= linePos.y + lineSize.y)
         {
             if (pt.x < linePos.x)
             {
                 textPosition = lineRange.GetStart();
-                return wxRICHTEXT_HITTEST_BEFORE;
+                return wxRICHTEXT_HITTEST_BEFORE|wxRICHTEXT_HITTEST_OUTSIDE;
             }
             else if (pt.x >= (linePos.x + lineSize.x))
             {
                 textPosition = lineRange.GetEnd();
-                return wxRICHTEXT_HITTEST_AFTER;
+                return wxRICHTEXT_HITTEST_AFTER|wxRICHTEXT_HITTEST_OUTSIDE;
             }
             else
             {
+#if wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS
+                wxArrayInt partialExtents;
+
+                wxSize paraSize;
+                int paraDescent;
+
+                // This calculates the partial text extents
+                GetRangeSize(lineRange, paraSize, paraDescent, dc, wxRICHTEXT_UNFORMATTED, wxPoint(0,0), & partialExtents);
+
+                int lastX = linePos.x;
+                size_t i;
+                for (i = 0; i < partialExtents.GetCount(); i++)
+                {
+                    int nextX = partialExtents[i] + linePos.x;
+
+                    if (pt.x >= lastX && pt.x <= nextX)
+                    {
+                        textPosition = i + lineRange.GetStart(); // minus 1?
+
+                        // So now we know it's between i-1 and i.
+                        // Let's see if we can be more precise about
+                        // which side of the position it's on.
+
+                        int midPoint = (nextX - lastX)/2 + lastX;
+                        if (pt.x >= midPoint)
+                            return wxRICHTEXT_HITTEST_AFTER;
+                        else
+                            return wxRICHTEXT_HITTEST_BEFORE;
+                    }
+
+                    lastX = nextX;
+                }
+#else
                 long i;
                 int lastX = linePos.x;
                 for (i = lineRange.GetStart(); i <= lineRange.GetEnd(); i++)
@@ -3158,6 +4066,7 @@ int wxRichTextParagraph::HitTest(wxDC& dc, const wxPoint& pt, long& textPosition
                         lastX = nextX;
                     }
                 }
+#endif
             }
         }
 
@@ -3296,7 +4205,9 @@ bool wxRichTextParagraph::GetContiguousPlainText(wxString& text, const wxRichTex
                     text += textObj->GetTextForRange(range);
                 }
                 else
-                    return true;
+                {
+                    text += wxT(" ");
+                }
             }
 
             node = node->GetNext();
@@ -3316,7 +4227,9 @@ bool wxRichTextParagraph::GetContiguousPlainText(wxString& text, const wxRichTex
                     text = textObj->GetTextForRange(range) + text;
                 }
                 else
-                    return true;
+                {
+                    text = wxT(" ") + text;
+                }
             }
 
             node = node->GetPrevious();
@@ -3327,21 +4240,85 @@ bool wxRichTextParagraph::GetContiguousPlainText(wxString& text, const wxRichTex
 }
 
 /// Find a suitable wrap position.
-bool wxRichTextParagraph::FindWrapPosition(const wxRichTextRange& range, wxDC& dc, int availableSpace, long& wrapPosition)
+bool wxRichTextParagraph::FindWrapPosition(const wxRichTextRange& range, wxDC& dc, int availableSpace, long& wrapPosition, wxArrayInt* partialExtents)
 {
+    if (range.GetLength() <= 0)
+        return false;
+
     // Find the first position where the line exceeds the available space.
     wxSize sz;
-    long i;
     long breakPosition = range.GetEnd();
-    for (i = range.GetStart(); i <= range.GetEnd(); i++)
+
+#if wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS
+    if (partialExtents && partialExtents->GetCount() >= (size_t) (GetRange().GetLength()-1)) // the final position in a paragraph is the newline
     {
-        int descent = 0;
-        GetRangeSize(wxRichTextRange(range.GetStart(), i), sz, descent, dc, wxRICHTEXT_UNFORMATTED);
+        int widthBefore;
+
+        if (range.GetStart() > GetRange().GetStart())
+            widthBefore = (*partialExtents)[range.GetStart() - GetRange().GetStart() - 1];
+        else
+            widthBefore = 0;
 
-        if (sz.x > availableSpace)
+        size_t i;
+        for (i = (size_t) range.GetStart(); i <= (size_t) range.GetEnd(); i++)
         {
-            breakPosition = i-1;
-            break;
+            int widthFromStartOfThisRange = (*partialExtents)[i - GetRange().GetStart()] - widthBefore;
+
+            if (widthFromStartOfThisRange > availableSpace)
+            {
+                breakPosition = i-1;
+                break;
+            }
+        }
+    }
+    else
+#endif
+    {
+        // Binary chop for speed
+        long minPos = range.GetStart();
+        long maxPos = range.GetEnd();
+        while (true)
+        {
+            if (minPos == maxPos)
+            {
+                int descent = 0;
+                GetRangeSize(wxRichTextRange(range.GetStart(), minPos), sz, descent, dc, wxRICHTEXT_UNFORMATTED);
+
+                if (sz.x > availableSpace)
+                    breakPosition = minPos - 1;
+                break;
+            }
+            else if ((maxPos - minPos) == 1)
+            {
+                int descent = 0;
+                GetRangeSize(wxRichTextRange(range.GetStart(), minPos), sz, descent, dc, wxRICHTEXT_UNFORMATTED);
+
+                if (sz.x > availableSpace)
+                    breakPosition = minPos - 1;
+                else
+                {
+                    GetRangeSize(wxRichTextRange(range.GetStart(), maxPos), sz, descent, dc, wxRICHTEXT_UNFORMATTED);
+                    if (sz.x > availableSpace)
+                        breakPosition = maxPos-1;
+                }
+                break;
+            }
+            else
+            {
+                long nextPos = minPos + ((maxPos - minPos) / 2);
+
+                int descent = 0;
+                GetRangeSize(wxRichTextRange(range.GetStart(), nextPos), sz, descent, dc, wxRICHTEXT_UNFORMATTED);
+
+                if (sz.x > availableSpace)
+                {
+                    maxPos = nextPos;
+                }
+                else
+                {
+                    minPos = nextPos;
+                }
+            }
         }
     }
 
@@ -3351,11 +4328,21 @@ bool wxRichTextParagraph::FindWrapPosition(const wxRichTextRange& range, wxDC& d
     wxString plainText;
     if (GetContiguousPlainText(plainText, wxRichTextRange(range.GetStart(), breakPosition), false))
     {
-        int spacePos = plainText.Find(wxT(' '), true);
-        if (spacePos != wxNOT_FOUND)
+        int newLinePos = plainText.Find(wxRichTextLineBreakChar);
+        if (newLinePos != wxNOT_FOUND)
+        {
+            breakPosition = wxMax(0, range.GetStart() + newLinePos);
+        }
+        else
         {
-            int positionsFromEndOfString = plainText.length() - spacePos - 1;
-            breakPosition = breakPosition - positionsFromEndOfString;
+            int spacePos = plainText.Find(wxT(' '), true);
+            int tabPos = plainText.Find(wxT('\t'), true);
+            int pos = wxMax(spacePos, tabPos);
+            if (pos != wxNOT_FOUND)
+            {
+                int positionsFromEndOfString = plainText.length() - pos - 1;
+                breakPosition = breakPosition - positionsFromEndOfString;
+            }
         }
     }
 
@@ -3374,7 +4361,7 @@ wxString wxRichTextParagraph::GetBulletText()
     int number = GetAttributes().GetBulletNumber();
 
     wxString text;
-    if (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ARABIC)
+    if ((GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ARABIC) || (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_OUTLINE))
     {
         text.Printf(wxT("%d"), number);
     }
@@ -3399,13 +4386,28 @@ wxString wxRichTextParagraph::GetBulletText()
     }
     else if (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_SYMBOL)
     {
-        text = GetAttributes().GetBulletSymbol();
+        text = GetAttributes().GetBulletText();
+    }
+
+    if (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_OUTLINE)
+    {
+        // The outline style relies on the text being computed statically,
+        // since it depends on other levels points (e.g. 1.2.1.1). So normally the bullet text
+        // should be stored in the attributes; if not, just use the number for this
+        // level, as previously computed.
+        if (!GetAttributes().GetBulletText().IsEmpty())
+            text = GetAttributes().GetBulletText();
     }
 
     if (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_PARENTHESES)
     {
         text = wxT("(") + text + wxT(")");
     }
+    else if (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_RIGHT_PARENTHESIS)
+    {
+        text = text + wxT(")");
+    }
+
     if (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_PERIOD)
     {
         text += wxT(".");
@@ -3450,9 +4452,9 @@ bool wxRichTextParagraph::ClearUnusedLines(int lineCount)
 
 /// Get combined attributes of the base style, paragraph style and character style. We use this to dynamically
 /// retrieve the actual style.
-wxTextAttrEx wxRichTextParagraph::GetCombinedAttributes(const wxTextAttrEx& contentStyle) const
+wxTextAttr wxRichTextParagraph::GetCombinedAttributes(const wxTextAttr& contentStyle) const
 {
-    wxTextAttrEx attr;
+    wxTextAttr attr;
     wxRichTextBuffer* buf = wxDynamicCast(GetParent(), wxRichTextBuffer);
     if (buf)
     {
@@ -3467,9 +4469,9 @@ wxTextAttrEx wxRichTextParagraph::GetCombinedAttributes(const wxTextAttrEx& cont
 }
 
 /// Get combined attributes of the base style and paragraph style.
-wxTextAttrEx wxRichTextParagraph::GetCombinedAttributes() const
+wxTextAttr wxRichTextParagraph::GetCombinedAttributes() const
 {
-    wxTextAttrEx attr;
+    wxTextAttr attr;
     wxRichTextBuffer* buf = wxDynamicCast(GetParent(), wxRichTextBuffer);
     if (buf)
     {
@@ -3482,6 +4484,44 @@ wxTextAttrEx wxRichTextParagraph::GetCombinedAttributes() const
     return attr;
 }
 
+/// Create default tabstop array
+void wxRichTextParagraph::InitDefaultTabs()
+{
+    // create a default tab list at 10 mm each.
+    for (int i = 0; i < 20; ++i)
+    {
+        sm_defaultTabs.Add(i*100);
+    }
+}
+
+/// Clear default tabstop array
+void wxRichTextParagraph::ClearDefaultTabs()
+{
+    sm_defaultTabs.Clear();
+}
+
+/// Get the first position from pos that has a line break character.
+long wxRichTextParagraph::GetFirstLineBreakPosition(long pos)
+{
+    wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
+    while (node)
+    {
+        wxRichTextObject* obj = node->GetData();
+        if (pos >= obj->GetRange().GetStart() && pos <= obj->GetRange().GetEnd())
+        {
+            wxRichTextPlainText* textObj = wxDynamicCast(obj, wxRichTextPlainText);
+            if (textObj)
+            {
+                long breakPos = textObj->GetFirstLineBreakPosition(pos);
+                if (breakPos > -1)
+                    return breakPos;
+            }
+        }
+        node = node->GetNext();
+    }
+    return -1;
+}
+
 /*!
  * wxRichTextLine
  * This object represents a line in a paragraph, and stores
@@ -3502,12 +4542,18 @@ void wxRichTextLine::Init(wxRichTextParagraph* parent)
     m_pos = wxPoint(0, 0);
     m_size = wxSize(0, 0);
     m_descent = 0;
+#if wxRICHTEXT_USE_OPTIMIZED_LINE_DRAWING
+    m_objectSizes.Clear();
+#endif
 }
 
 /// Copy
 void wxRichTextLine::Copy(const wxRichTextLine& obj)
 {
     m_range = obj.m_range;
+#if wxRICHTEXT_USE_OPTIMIZED_LINE_DRAWING
+    m_objectSizes = obj.m_objectSizes;
+#endif
 }
 
 /// Get the absolute object position
@@ -3531,44 +4577,78 @@ wxRichTextRange wxRichTextLine::GetAbsoluteRange() const
 
 IMPLEMENT_DYNAMIC_CLASS(wxRichTextPlainText, wxRichTextObject)
 
-wxRichTextPlainText::wxRichTextPlainText(const wxString& text, wxRichTextObject* parent, wxTextAttrEx* style):
+wxRichTextPlainText::wxRichTextPlainText(const wxString& text, wxRichTextObject* parent, wxTextAttr* style):
     wxRichTextObject(parent)
 {
-    if (parent && !style)
-        SetAttributes(parent->GetAttributes());
     if (style)
         SetAttributes(*style);
 
     m_text = text;
 }
 
+#define USE_KERNING_FIX 1
+
+// If insufficient tabs are defined, this is the tab width used
+#define WIDTH_FOR_DEFAULT_TABS 50
+
 /// Draw the item
 bool wxRichTextPlainText::Draw(wxDC& dc, const wxRichTextRange& range, const wxRichTextRange& selectionRange, const wxRect& rect, int descent, int WXUNUSED(style))
 {
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
     wxRichTextParagraph* para = wxDynamicCast(GetParent(), wxRichTextParagraph);
     wxASSERT (para != NULL);
 
-    wxTextAttrEx textAttr(para ? para->GetCombinedAttributes(GetAttributes()) : GetAttributes());
-#else
-    wxTextAttrEx textAttr(GetAttributes());
-#endif
+    wxTextAttr textAttr(para ? para->GetCombinedAttributes(GetAttributes()) : GetAttributes());
 
     int offset = GetRange().GetStart();
 
-    long len = range.GetLength();
-    wxString stringChunk = m_text.Mid(range.GetStart() - offset, (size_t) len);
-
-    int charHeight = dc.GetCharHeight();
+    // Replace line break characters with spaces
+    wxString str = m_text;
+    wxString toRemove = wxRichTextLineBreakChar;
+    str.Replace(toRemove, wxT(" "));
+    if (textAttr.HasTextEffects() && (textAttr.GetTextEffects() & wxTEXT_ATTR_EFFECT_CAPITALS))
+        str.MakeUpper();
 
-    int x = rect.x;
-    int y = rect.y + (rect.height - charHeight - (descent - m_descent));
+    long len = range.GetLength();
+    wxString stringChunk = str.Mid(range.GetStart() - offset, (size_t) len);
 
     // Test for the optimized situations where all is selected, or none
     // is selected.
 
-    if (textAttr.GetFont().Ok())
-        dc.SetFont(textAttr.GetFont());
+    wxFont textFont(GetBuffer()->GetFontTable().FindFont(textAttr));
+    wxCheckSetFont(dc, textFont);
+    int charHeight = dc.GetCharHeight();
+
+    int x, y;
+    if ( textFont.Ok() )
+    {
+        if ( textAttr.HasTextEffects() && (textAttr.GetTextEffects() & wxTEXT_ATTR_EFFECT_SUPERSCRIPT) )
+        {
+            double size = static_cast<double>(textFont.GetPointSize()) / wxSCRIPT_MUL_FACTOR;
+            textFont.SetPointSize( static_cast<int>(size) );
+            x = rect.x;
+            y = rect.y;
+            wxCheckSetFont(dc, textFont);
+        }
+        else if ( textAttr.HasTextEffects() && (textAttr.GetTextEffects() & wxTEXT_ATTR_EFFECT_SUBSCRIPT) )
+        {
+            double size = static_cast<double>(textFont.GetPointSize()) / wxSCRIPT_MUL_FACTOR;
+            textFont.SetPointSize( static_cast<int>(size) );
+            x = rect.x;
+            int sub_height = static_cast<int>( static_cast<double>(charHeight) / wxSCRIPT_MUL_FACTOR);
+            y = rect.y + (rect.height - sub_height + (descent - m_descent));
+            wxCheckSetFont(dc, textFont);
+        }
+        else
+        {
+            x = rect.x;
+            y = rect.y + (rect.height - charHeight - (descent - m_descent));
+        }
+    }
+    else
+    {
+        x = rect.x;
+        y = rect.y + (rect.height - charHeight - (descent - m_descent));
+    }
 
     // (a) All selected.
     if (selectionRange.GetStart() <= range.GetStart() && selectionRange.GetEnd() >= range.GetEnd())
@@ -3586,7 +4666,7 @@ bool wxRichTextPlainText::Draw(wxDC& dc, const wxRichTextRange& range, const wxR
         // (c) Part selected, part not
         // Let's draw unselected chunk, selected chunk, then unselected chunk.
 
-        dc.SetBackgroundMode(wxTRANSPARENT);
+        dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
 
         // 1. Initial unselected chunk, if any, up until start of selection.
         if (selectionRange.GetStart() > range.GetStart() && selectionRange.GetStart() <= range.GetEnd())
@@ -3595,10 +4675,29 @@ bool wxRichTextPlainText::Draw(wxDC& dc, const wxRichTextRange& range, const wxR
             int s1 = selectionRange.GetStart()-1;
             int fragmentLen = s1 - r1 + 1;
             if (fragmentLen < 0)
+            {
                 wxLogDebug(wxT("Mid(%d, %d"), (int)(r1 - offset), (int)fragmentLen);
-            wxString stringFragment = m_text.Mid(r1 - offset, fragmentLen);
+            }
+            wxString stringFragment = str.Mid(r1 - offset, fragmentLen);
 
             DrawTabbedString(dc, textAttr, rect, stringFragment, x, y, false);
+
+#if USE_KERNING_FIX
+            if (stringChunk.Find(wxT("\t")) == wxNOT_FOUND)
+            {
+                // Compensate for kerning difference
+                wxString stringFragment2(str.Mid(r1 - offset, fragmentLen+1));
+                wxString stringFragment3(str.Mid(r1 - offset + fragmentLen, 1));
+
+                wxCoord w1, h1, w2, h2, w3, h3;
+                dc.GetTextExtent(stringFragment,  & w1, & h1);
+                dc.GetTextExtent(stringFragment2, & w2, & h2);
+                dc.GetTextExtent(stringFragment3, & w3, & h3);
+
+                int kerningDiff = (w1 + w3) - w2;
+                x = x - kerningDiff;
+            }
+#endif
         }
 
         // 2. Selected chunk, if any.
@@ -3609,10 +4708,29 @@ bool wxRichTextPlainText::Draw(wxDC& dc, const wxRichTextRange& range, const wxR
 
             int fragmentLen = s2 - s1 + 1;
             if (fragmentLen < 0)
+            {
                 wxLogDebug(wxT("Mid(%d, %d"), (int)(s1 - offset), (int)fragmentLen);
-            wxString stringFragment = m_text.Mid(s1 - offset, fragmentLen);
+            }
+            wxString stringFragment = str.Mid(s1 - offset, fragmentLen);
 
             DrawTabbedString(dc, textAttr, rect, stringFragment, x, y, true);
+
+#if USE_KERNING_FIX
+            if (stringChunk.Find(wxT("\t")) == wxNOT_FOUND)
+            {
+                // Compensate for kerning difference
+                wxString stringFragment2(str.Mid(s1 - offset, fragmentLen+1));
+                wxString stringFragment3(str.Mid(s1 - offset + fragmentLen, 1));
+
+                wxCoord w1, h1, w2, h2, w3, h3;
+                dc.GetTextExtent(stringFragment,  & w1, & h1);
+                dc.GetTextExtent(stringFragment2, & w2, & h2);
+                dc.GetTextExtent(stringFragment3, & w3, & h3);
+
+                int kerningDiff = (w1 + w3) - w2;
+                x = x - kerningDiff;
+            }
+#endif
         }
 
         // 3. Remaining unselected chunk, if any
@@ -3623,8 +4741,10 @@ bool wxRichTextPlainText::Draw(wxDC& dc, const wxRichTextRange& range, const wxR
 
             int fragmentLen = r2 - s2 + 1;
             if (fragmentLen < 0)
+            {
                 wxLogDebug(wxT("Mid(%d, %d"), (int)(s2 - offset), (int)fragmentLen);
-            wxString stringFragment = m_text.Mid(s2 - offset, fragmentLen);
+            }
+            wxString stringFragment = str.Mid(s2 - offset, fragmentLen);
 
             DrawTabbedString(dc, textAttr, rect, stringFragment, x, y, false);
         }
@@ -3633,78 +4753,125 @@ bool wxRichTextPlainText::Draw(wxDC& dc, const wxRichTextRange& range, const wxR
     return true;
 }
 
-bool wxRichTextPlainText::DrawTabbedString(wxDC& dc, const wxTextAttrEx& attr, const wxRect& rect,wxString& str, wxCoord& x, wxCoord& y, bool selected)
+bool wxRichTextPlainText::DrawTabbedString(wxDC& dc, const wxTextAttr& attr, const wxRect& rect,wxString& str, wxCoord& x, wxCoord& y, bool selected)
 {
-    wxArrayInt tab_array =  attr.GetTabs();
-    if (tab_array.IsEmpty())
+    bool hasTabs = (str.Find(wxT('\t')) != wxNOT_FOUND);
+
+    wxArrayInt tabArray;
+    int tabCount;
+    if (hasTabs)
     {
-        // create a default tab list at 10 mm each.
-        for (int i = 0; i < 20; ++i)
+        if (attr.GetTabs().IsEmpty())
+            tabArray = wxRichTextParagraph::GetDefaultTabs();
+        else
+            tabArray = attr.GetTabs();
+        tabCount = tabArray.GetCount();
+
+        for (int i = 0; i < tabCount; ++i)
         {
-            tab_array.Add(i*100);
+            int pos = tabArray[i];
+            pos = ConvertTenthsMMToPixels(dc, pos);
+            tabArray[i] = pos;
         }
     }
-    int map_mode = dc.GetMapMode();
-    dc.SetMapMode(wxMM_LOMETRIC );
-    int num_tabs = tab_array.GetCount();
-    for (int i = 0; i < num_tabs; ++i)
-    {
-       tab_array[i] = dc.LogicalToDeviceXRel(tab_array[i]);
-    }
+    else
+        tabCount = 0;
 
-    dc.SetMapMode(map_mode );
-    int next_tab_pos = -1;
-    int tab_pos = -1;
+    int nextTabPos = -1;
+    int tabPos = -1;
     wxCoord w, h;
 
-    if(selected)
+    if (selected)
     {
-        dc.SetBrush(*wxBLACK_BRUSH);
-        dc.SetPen(*wxBLACK_PEN);
-        dc.SetTextForeground(*wxWHITE);
-        dc.SetBackgroundMode(wxTRANSPARENT);
+        wxColour highlightColour(wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT));
+        wxColour highlightTextColour(wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT));
+
+        wxCheckSetBrush(dc, wxBrush(highlightColour));
+        wxCheckSetPen(dc, wxPen(highlightColour));
+        dc.SetTextForeground(highlightTextColour);
+        dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
     }
     else
     {
         dc.SetTextForeground(attr.GetTextColour());
-        dc.SetBackgroundMode(wxTRANSPARENT);
+
+        if (attr.HasFlag(wxTEXT_ATTR_BACKGROUND_COLOUR) && attr.GetBackgroundColour().IsOk())
+        {
+            dc.SetBackgroundMode(wxBRUSHSTYLE_SOLID);
+            dc.SetTextBackground(attr.GetBackgroundColour());
+        }
+        else
+            dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
     }
 
-    while (str.Find(wxT('\t')) >= 0)
+    wxCoord x_orig = x;
+    while (hasTabs)
     {
         // the string has a tab
         // break up the string at the Tab
         wxString stringChunk = str.BeforeFirst(wxT('\t'));
         str = str.AfterFirst(wxT('\t'));
         dc.GetTextExtent(stringChunk, & w, & h);
-        tab_pos = x + w;
+        tabPos = x + w;
         bool not_found = true;
-        for (int i = 0; i < num_tabs && not_found; ++i)
+        for (int i = 0; i < tabCount && not_found; ++i)
         {
-            next_tab_pos = tab_array.Item(i);
-            if (next_tab_pos > tab_pos)
+            nextTabPos = tabArray.Item(i) + x_orig;
+
+            // Find the next tab position.
+            // Even if we're at the end of the tab array, we must still draw the chunk.
+
+            if (nextTabPos > tabPos || (i == (tabCount - 1)))
             {
+                if (nextTabPos <= tabPos)
+                {
+                    int defaultTabWidth = ConvertTenthsMMToPixels(dc, WIDTH_FOR_DEFAULT_TABS);
+                    nextTabPos = tabPos + defaultTabWidth;
+                }
+
                 not_found = false;
                 if (selected)
                 {
-                    w = next_tab_pos - x;
+                    w = nextTabPos - x;
                     wxRect selRect(x, rect.y, w, rect.GetHeight());
                     dc.DrawRectangle(selRect);
                 }
                 dc.DrawText(stringChunk, x, y);
-                x = next_tab_pos;
+
+                if (attr.HasTextEffects() && (attr.GetTextEffects() & wxTEXT_ATTR_EFFECT_STRIKETHROUGH))
+                {
+                    wxPen oldPen = dc.GetPen();
+                    wxCheckSetPen(dc, wxPen(attr.GetTextColour(), 1));
+                    dc.DrawLine(x, (int) (y+(h/2)+0.5), x+w, (int) (y+(h/2)+0.5));
+                    wxCheckSetPen(dc, oldPen);
+                }
+
+                x = nextTabPos;
             }
         }
+        hasTabs = (str.Find(wxT('\t')) != wxNOT_FOUND);
     }
 
-    dc.GetTextExtent(str, & w, & h);
-    if (selected)
+    if (!str.IsEmpty())
     {
-        wxRect selRect(x, rect.y, w, rect.GetHeight());
-        dc.DrawRectangle(selRect);
+        dc.GetTextExtent(str, & w, & h);
+        if (selected)
+        {
+            wxRect selRect(x, rect.y, w, rect.GetHeight());
+            dc.DrawRectangle(selRect);
+        }
+        dc.DrawText(str, x, y);
+
+        if (attr.HasTextEffects() && (attr.GetTextEffects() & wxTEXT_ATTR_EFFECT_STRIKETHROUGH))
+        {
+            wxPen oldPen = dc.GetPen();
+            wxCheckSetPen(dc, wxPen(attr.GetTextColour(), 1));
+            dc.DrawLine(x, (int) (y+(h/2)+0.5), x+w, (int) (y+(h/2)+0.5));
+            wxCheckSetPen(dc, oldPen);
+        }
+
+        x += w;
     }
-    dc.DrawText(str, x, y);
-    x += w;
     return true;
 
 }
@@ -3712,21 +4879,9 @@ bool wxRichTextPlainText::DrawTabbedString(wxDC& dc, const wxTextAttrEx& attr, c
 /// Lay the item out
 bool wxRichTextPlainText::Layout(wxDC& dc, const wxRect& WXUNUSED(rect), int WXUNUSED(style))
 {
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
-    wxRichTextParagraph* para = wxDynamicCast(GetParent(), wxRichTextParagraph);
-    wxASSERT (para != NULL);
-
-    wxTextAttrEx textAttr(para ? para->GetCombinedAttributes(GetAttributes()) : GetAttributes());
-#else
-    wxTextAttrEx textAttr(GetAttributes());
-#endif
-
-    if (textAttr.GetFont().Ok())
-        dc.SetFont(textAttr.GetFont());
-
-    wxCoord w, h;
-    dc.GetTextExtent(m_text, & w, & h, & m_descent);
-    m_size = wxSize(w, dc.GetCharHeight());
+    // Only lay out if we haven't already cached the size
+    if (m_size.x == -1)
+        GetRangeSize(GetRange(), m_size, m_descent, dc, 0, wxPoint(0, 0));
 
     return true;
 }
@@ -3741,80 +4896,181 @@ void wxRichTextPlainText::Copy(const wxRichTextPlainText& obj)
 
 /// Get/set the object size for the given range. Returns false if the range
 /// is invalid for this object.
-bool wxRichTextPlainText::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& descent, wxDC& dc, int WXUNUSED(flags), wxPoint position) const
+bool wxRichTextPlainText::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& descent, wxDC& dc, int WXUNUSED(flags), wxPoint position, wxArrayInt* partialExtents) const
 {
     if (!range.IsWithin(GetRange()))
         return false;
 
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
     wxRichTextParagraph* para = wxDynamicCast(GetParent(), wxRichTextParagraph);
     wxASSERT (para != NULL);
 
-    wxTextAttrEx textAttr(para ? para->GetCombinedAttributes(GetAttributes()) : GetAttributes());
-#else
-    wxTextAttrEx textAttr(GetAttributes());
-#endif
+    wxTextAttr textAttr(para ? para->GetCombinedAttributes(GetAttributes()) : GetAttributes());
 
     // Always assume unformatted text, since at this level we have no knowledge
     // of line breaks - and we don't need it, since we'll calculate size within
     // formatted text by doing it in chunks according to the line ranges
 
-    if (textAttr.GetFont().Ok())
-        dc.SetFont(textAttr.GetFont());
+    bool bScript(false);
+    wxFont font(GetBuffer()->GetFontTable().FindFont(textAttr));
+    if (font.Ok())
+    {
+        if ( textAttr.HasTextEffects() && ( (textAttr.GetTextEffects() & wxTEXT_ATTR_EFFECT_SUPERSCRIPT)
+            || (textAttr.GetTextEffects() & wxTEXT_ATTR_EFFECT_SUBSCRIPT) ) )
+        {
+            wxFont textFont = font;
+            double size = static_cast<double>(textFont.GetPointSize()) / wxSCRIPT_MUL_FACTOR;
+            textFont.SetPointSize( static_cast<int>(size) );
+            wxCheckSetFont(dc, textFont);
+            bScript = true;
+        }
+        else
+        {
+            wxCheckSetFont(dc, font);
+        }
+    }
 
+    bool haveDescent = false;
     int startPos = range.GetStart() - GetRange().GetStart();
     long len = range.GetLength();
-    wxString stringChunk = m_text.Mid(startPos, (size_t) len);
+
+    wxString str(m_text);
+    wxString toReplace = wxRichTextLineBreakChar;
+    str.Replace(toReplace, wxT(" "));
+
+    wxString stringChunk = str.Mid(startPos, (size_t) len);
+
+    if (textAttr.HasTextEffects() && (textAttr.GetTextEffects() & wxTEXT_ATTR_EFFECT_CAPITALS))
+        stringChunk.MakeUpper();
+
     wxCoord w, h;
     int width = 0;
-    if (stringChunk.Find(wxT('\t')) >= 0)
+    if (stringChunk.Find(wxT('\t')) != wxNOT_FOUND)
     {
         // the string has a tab
-        wxArrayInt tab_array =  textAttr.GetTabs();
-        if (tab_array.IsEmpty())
-        {
-            // create a default tab list at 10 mm each.
-            for (int i = 0; i < 20; ++i)
-            {
-                tab_array.Add(i*100);
-            }
-        }
+        wxArrayInt tabArray;
+        if (textAttr.GetTabs().IsEmpty())
+            tabArray = wxRichTextParagraph::GetDefaultTabs();
+        else
+            tabArray = textAttr.GetTabs();
 
-        int map_mode = dc.GetMapMode();
-        dc.SetMapMode(wxMM_LOMETRIC );
-        int num_tabs = tab_array.GetCount();
+        int tabCount = tabArray.GetCount();
 
-        for (int i = 0; i < num_tabs; ++i)
+        for (int i = 0; i < tabCount; ++i)
         {
-            tab_array[i] = dc.LogicalToDeviceXRel(tab_array[i]);
+            int pos = tabArray[i];
+            pos = ((wxRichTextPlainText*) this)->ConvertTenthsMMToPixels(dc, pos);
+            tabArray[i] = pos;
         }
-        dc.SetMapMode(map_mode );
-        int next_tab_pos = -1;
+
+        int nextTabPos = -1;
 
         while (stringChunk.Find(wxT('\t')) >= 0)
         {
+            int absoluteWidth = 0;
+
             // the string has a tab
             // break up the string at the Tab
             wxString stringFragment = stringChunk.BeforeFirst(wxT('\t'));
             stringChunk = stringChunk.AfterFirst(wxT('\t'));
-            dc.GetTextExtent(stringFragment, & w, & h);
-            width += w;
-            int absolute_width = width + position.x;
-            bool not_found = true;
-            for (int i = 0; i < num_tabs && not_found; ++i)
+
+            if (partialExtents)
+            {
+                int oldWidth;
+                if (partialExtents->GetCount() > 0)
+                    oldWidth = (*partialExtents)[partialExtents->GetCount()-1];
+                else
+                    oldWidth = 0;
+
+                // Add these partial extents
+                wxArrayInt p;
+                dc.GetPartialTextExtents(stringFragment, p);
+                size_t j;
+                for (j = 0; j < p.GetCount(); j++)
+                    partialExtents->Add(oldWidth + p[j]);
+
+                if (partialExtents->GetCount() > 0)
+                    absoluteWidth = (*partialExtents)[(*partialExtents).GetCount()-1] + position.x;
+                else
+                    absoluteWidth = position.x;
+            }
+            else
             {
-                next_tab_pos = tab_array.Item(i);
-                if (next_tab_pos > absolute_width)
+                dc.GetTextExtent(stringFragment, & w, & h);
+                width += w;
+                absoluteWidth = width + position.x;
+                haveDescent = true;
+            }
+
+            bool notFound = true;
+            for (int i = 0; i < tabCount && notFound; ++i)
+            {
+                nextTabPos = tabArray.Item(i);
+
+                // Find the next tab position.
+                // Even if we're at the end of the tab array, we must still process the chunk.
+
+                if (nextTabPos > absoluteWidth || (i == (tabCount - 1)))
                 {
-                    not_found = false;
-                    width = next_tab_pos - position.x;
+                    if (nextTabPos <= absoluteWidth)
+                    {
+                        int defaultTabWidth = ((wxRichTextPlainText*) this)->ConvertTenthsMMToPixels(dc, WIDTH_FOR_DEFAULT_TABS);
+                        nextTabPos = absoluteWidth + defaultTabWidth;
+                    }
+
+                    notFound = false;
+                    width = nextTabPos - position.x;
+
+                    if (partialExtents)
+                        partialExtents->Add(width);
                 }
             }
         }
     }
-    dc.GetTextExtent(stringChunk, & w, & h, & descent);
-    width += w;
-    size = wxSize(width, dc.GetCharHeight());
+
+    if (!stringChunk.IsEmpty())
+    {
+        if (partialExtents)
+        {
+            int oldWidth;
+            if (partialExtents->GetCount() > 0)
+                oldWidth = (*partialExtents)[partialExtents->GetCount()-1];
+            else
+                oldWidth = 0;
+
+            // Add these partial extents
+            wxArrayInt p;
+            dc.GetPartialTextExtents(stringChunk, p);
+            size_t j;
+            for (j = 0; j < p.GetCount(); j++)
+                partialExtents->Add(oldWidth + p[j]);
+        }
+        else
+        {
+            dc.GetTextExtent(stringChunk, & w, & h, & descent);
+            width += w;
+            haveDescent = true;
+        }
+    }
+
+    if (partialExtents)
+    {
+        int charHeight = dc.GetCharHeight();
+        if ((*partialExtents).GetCount() > 0)
+            w = (*partialExtents)[partialExtents->GetCount()-1];
+        else
+            w = 0;
+        size = wxSize(w, charHeight);
+    }
+    else
+    {
+        size = wxSize(width, dc.GetCharHeight());
+    }
+
+    if (!haveDescent)
+        dc.GetTextExtent(wxT("X"), & w, & h, & descent);
+
+    if ( bScript )
+        dc.SetFont(font);
 
     return true;
 }
@@ -3823,7 +5079,8 @@ bool wxRichTextPlainText::GetRangeSize(const wxRichTextRange& range, wxSize& siz
 /// the first part in 'this'.
 wxRichTextObject* wxRichTextPlainText::DoSplit(long pos)
 {
-    int index = pos - GetRange().GetStart();
+    long index = pos - GetRange().GetStart();
+
     if (index < 0 || index >= (int) m_text.length())
         return NULL;
 
@@ -3898,6 +5155,7 @@ bool wxRichTextPlainText::Merge(wxRichTextObject* object)
     if (textObject)
     {
         m_text += textObject->GetText();
+        wxRichTextApplyStyle(m_attributes, textObject->GetAttributes());
         return true;
     }
     else
@@ -3911,6 +5169,23 @@ void wxRichTextPlainText::Dump(wxTextOutputStream& stream)
     stream << m_text << wxT("\n");
 }
 
+/// Get the first position from pos that has a line break character.
+long wxRichTextPlainText::GetFirstLineBreakPosition(long pos)
+{
+    int i;
+    int len = m_text.length();
+    int startPos = pos - m_range.GetStart();
+    for (i = startPos; i < len; i++)
+    {
+        wxChar ch = m_text[i];
+        if (ch == wxRichTextLineBreakChar)
+        {
+            return i + m_range.GetStart();
+        }
+    }
+    return -1;
+}
+
 /*!
  * wxRichTextBuffer
  * This is a kind of box, used to represent the whole buffer
@@ -3918,7 +5193,10 @@ void wxRichTextPlainText::Dump(wxTextOutputStream& stream)
 
 IMPLEMENT_DYNAMIC_CLASS(wxRichTextBuffer, wxRichTextParagraphLayoutBox)
 
-wxList wxRichTextBuffer::sm_handlers;
+wxList                  wxRichTextBuffer::sm_handlers;
+wxRichTextRenderer*     wxRichTextBuffer::sm_renderer = NULL;
+int                     wxRichTextBuffer::sm_bulletRightMargin = 20;
+float                   wxRichTextBuffer::sm_bulletProportion = (float) 0.3;
 
 /// Initialisation
 void wxRichTextBuffer::Init()
@@ -3929,6 +5207,8 @@ void wxRichTextBuffer::Init()
     m_batchedCommandDepth = 0;
     m_batchedCommand = NULL;
     m_suppressUndo = 0;
+    m_handlerFlags = 0;
+    m_scale = 1.0;
 }
 
 /// Initialisation
@@ -3938,21 +5218,15 @@ wxRichTextBuffer::~wxRichTextBuffer()
     delete m_batchedCommand;
 
     ClearStyleStack();
+    ClearEventHandlers();
 }
 
-void wxRichTextBuffer::Clear()
+void wxRichTextBuffer::ResetAndClearCommands()
 {
-    DeleteChildren();
-    GetCommandProcessor()->ClearCommands();
-    Modify(false);
-    Invalidate(wxRICHTEXT_ALL);
-}
+    Reset();
 
-void wxRichTextBuffer::Reset()
-{
-    DeleteChildren();
-    AddParagraph(wxEmptyString);
     GetCommandProcessor()->ClearCommands();
+
     Modify(false);
     Invalidate(wxRICHTEXT_ALL);
 }
@@ -3968,44 +5242,69 @@ void wxRichTextBuffer::Copy(const wxRichTextBuffer& obj)
     m_suppressUndo = obj.m_suppressUndo;
 }
 
+/// Push style sheet to top of stack
+bool wxRichTextBuffer::PushStyleSheet(wxRichTextStyleSheet* styleSheet)
+{
+    if (m_styleSheet)
+        styleSheet->InsertSheet(m_styleSheet);
+
+    SetStyleSheet(styleSheet);
+
+    return true;
+}
+
+/// Pop style sheet from top of stack
+wxRichTextStyleSheet* wxRichTextBuffer::PopStyleSheet()
+{
+    if (m_styleSheet)
+    {
+        wxRichTextStyleSheet* oldSheet = m_styleSheet;
+        m_styleSheet = oldSheet->GetNextSheet();
+        oldSheet->Unlink();
+
+        return oldSheet;
+    }
+    else
+        return NULL;
+}
+
 /// Submit command to insert paragraphs
 bool wxRichTextBuffer::InsertParagraphsWithUndo(long pos, const wxRichTextParagraphLayoutBox& paragraphs, wxRichTextCtrl* ctrl, int flags)
 {
     wxRichTextAction* action = new wxRichTextAction(NULL, _("Insert Text"), wxRICHTEXT_INSERT, this, ctrl, false);
 
-    wxTextAttrEx* p = NULL;
-    wxTextAttrEx paraAttr;
+    wxTextAttr attr(GetDefaultStyle());
+
+    wxTextAttr* p = NULL;
+    wxTextAttr paraAttr;
     if (flags & wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE)
     {
         paraAttr = GetStyleForNewParagraph(pos);
         if (!paraAttr.IsDefault())
             p = & paraAttr;
     }
-
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
-    wxTextAttrEx attr(GetDefaultStyle());
-#else
-    wxTextAttrEx attr(GetBasicStyle());
-    wxRichTextApplyStyle(attr, GetDefaultStyle());
-#endif
+    else
+        p = & attr;
 
     action->GetNewParagraphs() = paragraphs;
 
-    if (p)
+    if (p && !p->IsDefault())
     {
-        wxRichTextObjectList::compatibility_iterator node = m_children.GetLast();
-        while (node)
+        for (wxRichTextObjectList::compatibility_iterator node = action->GetNewParagraphs().GetChildren().GetFirst(); node; node = node->GetNext())
         {
-            wxRichTextParagraph* obj = (wxRichTextParagraph*) node->GetData();
-            obj->SetAttributes(*p);
-            node = node->GetPrevious();
+            wxRichTextObject* child = node->GetData();
+            child->SetAttributes(*p);
         }
     }
 
     action->SetPosition(pos);
 
+    wxRichTextRange range = wxRichTextRange(pos, pos + paragraphs.GetRange().GetEnd() - 1);
+    if (!paragraphs.GetPartialParagraph())
+        range.SetEnd(range.GetEnd()+1);
+
     // Set the range we'll need to delete in Undo
-    action->SetRange(wxRichTextRange(pos, pos + paragraphs.GetRange().GetEnd() - 1));
+    action->SetRange(range);
 
     SubmitAction(action);
 
@@ -4017,22 +5316,16 @@ bool wxRichTextBuffer::InsertTextWithUndo(long pos, const wxString& text, wxRich
 {
     wxRichTextAction* action = new wxRichTextAction(NULL, _("Insert Text"), wxRICHTEXT_INSERT, this, ctrl, false);
 
-    wxTextAttrEx* p = NULL;
-    wxTextAttrEx paraAttr;
+    wxTextAttr* p = NULL;
+    wxTextAttr paraAttr;
     if (flags & wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE)
     {
-        paraAttr = GetStyleForNewParagraph(pos);
+        // Get appropriate paragraph style
+        paraAttr = GetStyleForNewParagraph(pos, false, false);
         if (!paraAttr.IsDefault())
             p = & paraAttr;
     }
 
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
-    wxTextAttrEx attr(GetDefaultStyle());
-#else
-    wxTextAttrEx attr(GetBasicStyle());
-    wxRichTextApplyStyle(attr, GetDefaultStyle());
-#endif
-
     action->GetNewParagraphs().AddParagraphs(text, p);
 
     int length = action->GetNewParagraphs().GetRange().GetLength();
@@ -4043,6 +5336,8 @@ bool wxRichTextBuffer::InsertTextWithUndo(long pos, const wxString& text, wxRich
         length --;
         action->GetNewParagraphs().SetPartialParagraph(true);
     }
+    else if (text.length() > 0 && text.Last() == wxT('\n'))
+        length --;
 
     action->SetPosition(pos);
 
@@ -4059,33 +5354,68 @@ bool wxRichTextBuffer::InsertNewlineWithUndo(long pos, wxRichTextCtrl* ctrl, int
 {
     wxRichTextAction* action = new wxRichTextAction(NULL, _("Insert Text"), wxRICHTEXT_INSERT, this, ctrl, false);
 
-    wxTextAttrEx* p = NULL;
-    wxTextAttrEx paraAttr;
+    wxTextAttr* p = NULL;
+    wxTextAttr paraAttr;
     if (flags & wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE)
     {
-        paraAttr = GetStyleForNewParagraph(pos);
+        paraAttr = GetStyleForNewParagraph(pos, false, true /* look for next paragraph style */);
         if (!paraAttr.IsDefault())
             p = & paraAttr;
     }
 
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
-    wxTextAttrEx attr(GetDefaultStyle());
-#else
-    wxTextAttrEx attr(GetBasicStyle());
-    wxRichTextApplyStyle(attr, GetDefaultStyle());
-#endif
+    wxTextAttr attr(GetDefaultStyle());
 
     wxRichTextParagraph* newPara = new wxRichTextParagraph(wxEmptyString, this, & attr);
     action->GetNewParagraphs().AppendChild(newPara);
     action->GetNewParagraphs().UpdateRanges();
     action->GetNewParagraphs().SetPartialParagraph(false);
-    action->SetPosition(pos);
+    wxRichTextParagraph* para = GetParagraphAtPosition(pos, false);
+    long pos1 = pos;
 
     if (p)
         newPara->SetAttributes(*p);
 
+    if (flags & wxRICHTEXT_INSERT_INTERACTIVE)
+    {
+        if (para && para->GetRange().GetEnd() == pos)
+            pos1 ++;
+
+        // Now see if we need to number the paragraph.
+        if (newPara->GetAttributes().HasBulletNumber())
+        {
+            wxRichTextAttr numberingAttr;
+            if (FindNextParagraphNumber(para, numberingAttr))
+                wxRichTextApplyStyle(newPara->GetAttributes(), (const wxRichTextAttr&) numberingAttr);
+        }
+    }
+
+    action->SetPosition(pos);
+
+    // Use the default character style
+    // Use the default character style
+    if (!GetDefaultStyle().IsDefault() && newPara->GetChildren().GetFirst())
+    {
+        // Check whether the default style merely reflects the paragraph/basic style,
+        // in which case don't apply it.
+        wxTextAttrEx defaultStyle(GetDefaultStyle());
+        wxTextAttrEx toApply;
+        if (para)
+        {
+            wxRichTextAttr combinedAttr = para->GetCombinedAttributes();
+            wxTextAttrEx newAttr;
+            // This filters out attributes that are accounted for by the current
+            // paragraph/basic style
+            wxRichTextApplyStyle(toApply, defaultStyle, & combinedAttr);
+        }
+        else
+            toApply = defaultStyle;
+
+        if (!toApply.IsDefault())
+            newPara->GetChildren().GetFirst()->GetData()->SetAttributes(toApply);
+    }
+
     // Set the range we'll need to delete in Undo
-    action->SetRange(wxRichTextRange(pos, pos));
+    action->SetRange(wxRichTextRange(pos1, pos1));
 
     SubmitAction(action);
 
@@ -4097,8 +5427,8 @@ bool wxRichTextBuffer::InsertImageWithUndo(long pos, const wxRichTextImageBlock&
 {
     wxRichTextAction* action = new wxRichTextAction(NULL, _("Insert Image"), wxRICHTEXT_INSERT, this, ctrl, false);
 
-    wxTextAttrEx* p = NULL;
-    wxTextAttrEx paraAttr;
+    wxTextAttr* p = NULL;
+    wxTextAttr paraAttr;
     if (flags & wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE)
     {
         paraAttr = GetStyleForNewParagraph(pos);
@@ -4106,12 +5436,7 @@ bool wxRichTextBuffer::InsertImageWithUndo(long pos, const wxRichTextImageBlock&
             p = & paraAttr;
     }
 
-#if wxRICHTEXT_USE_DYNAMIC_STYLES
-    wxTextAttrEx attr(GetDefaultStyle());
-#else
-    wxTextAttrEx attr(GetBasicStyle());
-    wxRichTextApplyStyle(attr, GetDefaultStyle());
-#endif
+    wxTextAttr attr(GetDefaultStyle());
 
     wxRichTextParagraph* newPara = new wxRichTextParagraph(this, & attr);
     if (p)
@@ -4137,42 +5462,82 @@ bool wxRichTextBuffer::InsertImageWithUndo(long pos, const wxRichTextImageBlock&
 /// Get the style that is appropriate for a new paragraph at this position.
 /// If the previous paragraph has a paragraph style name, look up the next-paragraph
 /// style.
-wxRichTextAttr wxRichTextBuffer::GetStyleForNewParagraph(long pos, bool caretPosition) const
+wxTextAttr wxRichTextBuffer::GetStyleForNewParagraph(long pos, bool caretPosition, bool lookUpNewParaStyle) const
 {
     wxRichTextParagraph* para = GetParagraphAtPosition(pos, caretPosition);
     if (para)
     {
-        if (!para->GetAttributes().GetParagraphStyleName().IsEmpty() && GetStyleSheet())
+        wxTextAttr attr;
+        bool foundAttributes = false;
+
+        // Look for a matching paragraph style
+        if (lookUpNewParaStyle && !para->GetAttributes().GetParagraphStyleName().IsEmpty() && GetStyleSheet())
         {
             wxRichTextParagraphStyleDefinition* paraDef = GetStyleSheet()->FindParagraphStyle(para->GetAttributes().GetParagraphStyleName());
-            if (paraDef && !paraDef->GetNextStyle().IsEmpty())
+            if (paraDef)
+            {
+                // If we're not at the end of the paragraph, then we apply THIS style, and not the designated next style.
+                if (para->GetRange().GetEnd() == pos && !paraDef->GetNextStyle().IsEmpty())
+                {
+                    wxRichTextParagraphStyleDefinition* nextParaDef = GetStyleSheet()->FindParagraphStyle(paraDef->GetNextStyle());
+                    if (nextParaDef)
+                    {
+                        foundAttributes = true;
+                        attr = nextParaDef->GetStyleMergedWithBase(GetStyleSheet());
+                    }
+                }
+
+                // If we didn't find the 'next style', use this style instead.
+                if (!foundAttributes)
+                {
+                    foundAttributes = true;
+                    attr = paraDef->GetStyleMergedWithBase(GetStyleSheet());
+                }
+            }
+        }
+
+        // Also apply list style if present
+        if (lookUpNewParaStyle && !para->GetAttributes().GetListStyleName().IsEmpty() && GetStyleSheet())
+        {
+            wxRichTextListStyleDefinition* listDef = GetStyleSheet()->FindListStyle(para->GetAttributes().GetListStyleName());
+            if (listDef)
             {
-                wxRichTextParagraphStyleDefinition* nextParaDef = GetStyleSheet()->FindParagraphStyle(paraDef->GetNextStyle());
-                if (nextParaDef)
-                    return nextParaDef->GetStyle();
+                int thisIndent = para->GetAttributes().GetLeftIndent();
+                int thisLevel = para->GetAttributes().HasOutlineLevel() ? para->GetAttributes().GetOutlineLevel() : listDef->FindLevelForIndent(thisIndent);
+
+                // Apply the overall list style, and item style for this level
+                wxRichTextAttr listStyle(listDef->GetCombinedStyleForLevel(thisLevel, GetStyleSheet()));
+                wxRichTextApplyStyle(attr, listStyle);
+                attr.SetOutlineLevel(thisLevel);
+                if (para->GetAttributes().HasBulletNumber())
+                    attr.SetBulletNumber(para->GetAttributes().GetBulletNumber());
             }
         }
-        wxRichTextAttr attr(para->GetAttributes());
-        int flags = attr.GetFlags();
 
-        // Eliminate character styles
-        flags &= ( (~ wxTEXT_ATTR_FONT) |
+        if (!foundAttributes)
+        {
+            attr = para->GetAttributes();
+            int flags = attr.GetFlags();
+
+            // Eliminate character styles
+            flags &= ( (~ wxTEXT_ATTR_FONT) |
                     (~ wxTEXT_ATTR_TEXT_COLOUR) |
                     (~ wxTEXT_ATTR_BACKGROUND_COLOUR) );
-        attr.SetFlags(flags);
+            attr.SetFlags(flags);
+        }
 
         return attr;
     }
     else
-        return wxRichTextAttr();
+        return wxTextAttr();
 }
 
 /// Submit command to delete this range
-bool wxRichTextBuffer::DeleteRangeWithUndo(const wxRichTextRange& range, long initialCaretPosition, long WXUNUSED(newCaretPositon), wxRichTextCtrl* ctrl)
+bool wxRichTextBuffer::DeleteRangeWithUndo(const wxRichTextRange& range, wxRichTextCtrl* ctrl)
 {
     wxRichTextAction* action = new wxRichTextAction(NULL, _("Delete"), wxRICHTEXT_DELETE, this, ctrl);
 
-    action->SetPosition(initialCaretPosition);
+    action->SetPosition(ctrl->GetCaretPosition());
 
     // Set the range to delete
     action->SetRange(range);
@@ -4180,22 +5545,18 @@ bool wxRichTextBuffer::DeleteRangeWithUndo(const wxRichTextRange& range, long in
     // Copy the fragment that we'll need to restore in Undo
     CopyFragment(range, action->GetOldParagraphs());
 
-    // Special case: if there is only one (non-partial) paragraph,
-    // we must save the *next* paragraph's style, because that
-    // is the style we must apply when inserting the content back
-    // when undoing the delete. (This is because we're merging the
-    // paragraph with the previous paragraph and throwing away
-    // the style, and we need to restore it.)
-    if (!action->GetOldParagraphs().GetPartialParagraph() && action->GetOldParagraphs().GetChildCount() == 1)
+    // See if we're deleting a paragraph marker, in which case we need to
+    // make a note not to copy the attributes from the 2nd paragraph to the 1st.
+    if (range.GetStart() == range.GetEnd())
     {
-        wxRichTextParagraph* lastPara = GetParagraphAtPosition(range.GetStart());
-        if (lastPara)
+        wxRichTextParagraph* para = GetParagraphAtPosition(range.GetStart());
+        if (para && para->GetRange().GetEnd() == range.GetEnd())
         {
-            wxRichTextParagraph* nextPara = GetParagraphAtPosition(range.GetEnd()+1);
-            if (nextPara)
+            wxRichTextParagraph* nextPara = GetParagraphAtPosition(range.GetStart()+1);
+            if (nextPara && nextPara != para)
             {
-                wxRichTextParagraph* para = (wxRichTextParagraph*) action->GetOldParagraphs().GetChild(0);
-                para->SetAttributes(nextPara->GetAttributes());
+                action->GetOldParagraphs().GetChildren().GetFirst()->GetData()->SetAttributes(nextPara->GetAttributes());
+                action->GetOldParagraphs().GetAttributes().SetFlags(action->GetOldParagraphs().GetAttributes().GetFlags() | wxTEXT_ATTR_KEEP_FIRST_PARA_STYLE);
             }
         }
     }
@@ -4213,7 +5574,7 @@ bool wxRichTextBuffer::BeginBatchUndo(const wxString& cmdName)
         wxASSERT(m_batchedCommand == NULL);
         if (m_batchedCommand)
         {
-            GetCommandProcessor()->Submit(m_batchedCommand);
+            GetCommandProcessor()->Store(m_batchedCommand);
         }
         m_batchedCommand = new wxRichTextCommand(cmdName);
     }
@@ -4233,7 +5594,7 @@ bool wxRichTextBuffer::EndBatchUndo()
 
     if (m_batchedCommandDepth == 0)
     {
-        GetCommandProcessor()->Submit(m_batchedCommand);
+        GetCommandProcessor()->Store(m_batchedCommand);
         m_batchedCommand = NULL;
     }
 
@@ -4244,7 +5605,15 @@ bool wxRichTextBuffer::EndBatchUndo()
 bool wxRichTextBuffer::SubmitAction(wxRichTextAction* action)
 {
     if (BatchingUndo() && m_batchedCommand && !SuppressingUndo())
+    {
+        wxRichTextCommand* cmd = new wxRichTextCommand(action->GetName());
+        cmd->AddAction(action);
+        cmd->Do();
+        cmd->GetActions().Clear();
+        delete cmd;
+
         m_batchedCommand->AddAction(action);
+    }
     else
     {
         wxRichTextCommand* cmd = new wxRichTextCommand(action->GetName());
@@ -4274,20 +5643,18 @@ bool wxRichTextBuffer::EndSuppressUndo()
 }
 
 /// Begin using a style
-bool wxRichTextBuffer::BeginStyle(const wxTextAttrEx& style)
+bool wxRichTextBuffer::BeginStyle(const wxTextAttr& style)
 {
-    wxTextAttrEx newStyle(GetDefaultStyle());
+    wxTextAttr newStyle(GetDefaultStyle());
 
     // Save the old default style
-    m_attributeStack.Append((wxObject*) new wxTextAttrEx(GetDefaultStyle()));
+    m_attributeStack.Append((wxObject*) new wxTextAttr(GetDefaultStyle()));
 
     wxRichTextApplyStyle(newStyle, style);
     newStyle.SetFlags(style.GetFlags()|newStyle.GetFlags());
 
     SetDefaultStyle(newStyle);
 
-    // wxLogDebug("Default style size = %d", GetDefaultStyle().GetFont().GetPointSize());
-
     return true;
 }
 
@@ -4301,7 +5668,7 @@ bool wxRichTextBuffer::EndStyle()
     }
 
     wxList::compatibility_iterator node = m_attributeStack.GetLast();
-    wxTextAttrEx* attr = (wxTextAttrEx*)node->GetData();
+    wxTextAttr* attr = (wxTextAttr*)node->GetData();
     m_attributeStack.Erase(node);
 
     SetDefaultStyle(*attr);
@@ -4322,18 +5689,15 @@ bool wxRichTextBuffer::EndAllStyles()
 void wxRichTextBuffer::ClearStyleStack()
 {
     for (wxList::compatibility_iterator node = m_attributeStack.GetFirst(); node; node = node->GetNext())
-        delete (wxTextAttrEx*) node->GetData();
+        delete (wxTextAttr*) node->GetData();
     m_attributeStack.Clear();
 }
 
 /// Begin using bold
 bool wxRichTextBuffer::BeginBold()
 {
-    wxFont font(GetBasicStyle().GetFont());
-    font.SetWeight(wxBOLD);
-
-    wxTextAttrEx attr;
-    attr.SetFont(font,wxTEXT_ATTR_FONT_WEIGHT);
+    wxTextAttr attr;
+    attr.SetFontWeight(wxFONTWEIGHT_BOLD);
 
     return BeginStyle(attr);
 }
@@ -4341,11 +5705,8 @@ bool wxRichTextBuffer::BeginBold()
 /// Begin using italic
 bool wxRichTextBuffer::BeginItalic()
 {
-    wxFont font(GetBasicStyle().GetFont());
-    font.SetStyle(wxITALIC);
-
-    wxTextAttrEx attr;
-    attr.SetFont(font, wxTEXT_ATTR_FONT_ITALIC);
+    wxTextAttr attr;
+    attr.SetFontStyle(wxFONTSTYLE_ITALIC);
 
     return BeginStyle(attr);
 }
@@ -4353,11 +5714,8 @@ bool wxRichTextBuffer::BeginItalic()
 /// Begin using underline
 bool wxRichTextBuffer::BeginUnderline()
 {
-    wxFont font(GetBasicStyle().GetFont());
-    font.SetUnderlined(true);
-
-    wxTextAttrEx attr;
-    attr.SetFont(font, wxTEXT_ATTR_FONT_UNDERLINE);
+    wxTextAttr attr;
+    attr.SetFontUnderlined(true);
 
     return BeginStyle(attr);
 }
@@ -4365,11 +5723,8 @@ bool wxRichTextBuffer::BeginUnderline()
 /// Begin using point size
 bool wxRichTextBuffer::BeginFontSize(int pointSize)
 {
-    wxFont font(GetBasicStyle().GetFont());
-    font.SetPointSize(pointSize);
-
-    wxTextAttrEx attr;
-    attr.SetFont(font, wxTEXT_ATTR_FONT_SIZE);
+    wxTextAttr attr;
+    attr.SetFontSize(pointSize);
 
     return BeginStyle(attr);
 }
@@ -4377,8 +5732,7 @@ bool wxRichTextBuffer::BeginFontSize(int pointSize)
 /// Begin using this font
 bool wxRichTextBuffer::BeginFont(const wxFont& font)
 {
-    wxTextAttrEx attr;
-    attr.SetFlags(wxTEXT_ATTR_FONT);
+    wxTextAttr attr;
     attr.SetFont(font);
 
     return BeginStyle(attr);
@@ -4387,7 +5741,7 @@ bool wxRichTextBuffer::BeginFont(const wxFont& font)
 /// Begin using this colour
 bool wxRichTextBuffer::BeginTextColour(const wxColour& colour)
 {
-    wxTextAttrEx attr;
+    wxTextAttr attr;
     attr.SetFlags(wxTEXT_ATTR_TEXT_COLOUR);
     attr.SetTextColour(colour);
 
@@ -4397,7 +5751,7 @@ bool wxRichTextBuffer::BeginTextColour(const wxColour& colour)
 /// Begin using alignment
 bool wxRichTextBuffer::BeginAlignment(wxTextAttrAlignment alignment)
 {
-    wxTextAttrEx attr;
+    wxTextAttr attr;
     attr.SetFlags(wxTEXT_ATTR_ALIGNMENT);
     attr.SetAlignment(alignment);
 
@@ -4407,7 +5761,7 @@ bool wxRichTextBuffer::BeginAlignment(wxTextAttrAlignment alignment)
 /// Begin left indent
 bool wxRichTextBuffer::BeginLeftIndent(int leftIndent, int leftSubIndent)
 {
-    wxTextAttrEx attr;
+    wxTextAttr attr;
     attr.SetFlags(wxTEXT_ATTR_LEFT_INDENT);
     attr.SetLeftIndent(leftIndent, leftSubIndent);
 
@@ -4417,7 +5771,7 @@ bool wxRichTextBuffer::BeginLeftIndent(int leftIndent, int leftSubIndent)
 /// Begin right indent
 bool wxRichTextBuffer::BeginRightIndent(int rightIndent)
 {
-    wxTextAttrEx attr;
+    wxTextAttr attr;
     attr.SetFlags(wxTEXT_ATTR_RIGHT_INDENT);
     attr.SetRightIndent(rightIndent);
 
@@ -4433,7 +5787,7 @@ bool wxRichTextBuffer::BeginParagraphSpacing(int before, int after)
     if (after != 0)
         flags |= wxTEXT_ATTR_PARA_SPACING_AFTER;
 
-    wxTextAttrEx attr;
+    wxTextAttr attr;
     attr.SetFlags(flags);
     attr.SetParagraphSpacingBefore(before);
     attr.SetParagraphSpacingAfter(after);
@@ -4444,7 +5798,7 @@ bool wxRichTextBuffer::BeginParagraphSpacing(int before, int after)
 /// Begin line spacing
 bool wxRichTextBuffer::BeginLineSpacing(int lineSpacing)
 {
-    wxTextAttrEx attr;
+    wxTextAttr attr;
     attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
     attr.SetLineSpacing(lineSpacing);
 
@@ -4454,8 +5808,8 @@ bool wxRichTextBuffer::BeginLineSpacing(int lineSpacing)
 /// Begin numbered bullet
 bool wxRichTextBuffer::BeginNumberedBullet(int bulletNumber, int leftIndent, int leftSubIndent, int bulletStyle)
 {
-    wxTextAttrEx attr;
-    attr.SetFlags(wxTEXT_ATTR_BULLET_STYLE|wxTEXT_ATTR_BULLET_NUMBER|wxTEXT_ATTR_LEFT_INDENT);
+    wxTextAttr attr;
+    attr.SetFlags(wxTEXT_ATTR_BULLET_STYLE|wxTEXT_ATTR_LEFT_INDENT);
     attr.SetBulletStyle(bulletStyle);
     attr.SetBulletNumber(bulletNumber);
     attr.SetLeftIndent(leftIndent, leftSubIndent);
@@ -4464,13 +5818,25 @@ bool wxRichTextBuffer::BeginNumberedBullet(int bulletNumber, int leftIndent, int
 }
 
 /// Begin symbol bullet
-bool wxRichTextBuffer::BeginSymbolBullet(wxChar symbol, int leftIndent, int leftSubIndent, int bulletStyle)
+bool wxRichTextBuffer::BeginSymbolBullet(const wxString& symbol, int leftIndent, int leftSubIndent, int bulletStyle)
+{
+    wxTextAttr attr;
+    attr.SetFlags(wxTEXT_ATTR_BULLET_STYLE|wxTEXT_ATTR_LEFT_INDENT);
+    attr.SetBulletStyle(bulletStyle);
+    attr.SetLeftIndent(leftIndent, leftSubIndent);
+    attr.SetBulletText(symbol);
+
+    return BeginStyle(attr);
+}
+
+/// Begin standard bullet
+bool wxRichTextBuffer::BeginStandardBullet(const wxString& bulletName, int leftIndent, int leftSubIndent, int bulletStyle)
 {
-    wxTextAttrEx attr;
-    attr.SetFlags(wxTEXT_ATTR_BULLET_STYLE|wxTEXT_ATTR_BULLET_SYMBOL|wxTEXT_ATTR_LEFT_INDENT);
+    wxTextAttr attr;
+    attr.SetFlags(wxTEXT_ATTR_BULLET_STYLE|wxTEXT_ATTR_LEFT_INDENT);
     attr.SetBulletStyle(bulletStyle);
     attr.SetLeftIndent(leftIndent, leftSubIndent);
-    attr.SetBulletSymbol(symbol);
+    attr.SetBulletName(bulletName);
 
     return BeginStyle(attr);
 }
@@ -4483,8 +5849,7 @@ bool wxRichTextBuffer::BeginCharacterStyle(const wxString& characterStyle)
         wxRichTextCharacterStyleDefinition* def = GetStyleSheet()->FindCharacterStyle(characterStyle);
         if (def)
         {
-            wxTextAttrEx attr;
-            def->GetStyle().CopyTo(attr);
+            wxTextAttr attr = def->GetStyleMergedWithBase(GetStyleSheet());
             return BeginStyle(attr);
         }
     }
@@ -4499,14 +5864,49 @@ bool wxRichTextBuffer::BeginParagraphStyle(const wxString& paragraphStyle)
         wxRichTextParagraphStyleDefinition* def = GetStyleSheet()->FindParagraphStyle(paragraphStyle);
         if (def)
         {
-            wxTextAttrEx attr;
-            def->GetStyle().CopyTo(attr);
+            wxTextAttr attr = def->GetStyleMergedWithBase(GetStyleSheet());
+            return BeginStyle(attr);
+        }
+    }
+    return false;
+}
+
+/// Begin named list style
+bool wxRichTextBuffer::BeginListStyle(const wxString& listStyle, int level, int number)
+{
+    if (GetStyleSheet())
+    {
+        wxRichTextListStyleDefinition* def = GetStyleSheet()->FindListStyle(listStyle);
+        if (def)
+        {
+            wxTextAttr attr(def->GetCombinedStyleForLevel(level));
+
+            attr.SetBulletNumber(number);
+
             return BeginStyle(attr);
         }
     }
     return false;
 }
 
+/// Begin URL
+bool wxRichTextBuffer::BeginURL(const wxString& url, const wxString& characterStyle)
+{
+    wxTextAttr attr;
+
+    if (!characterStyle.IsEmpty() && GetStyleSheet())
+    {
+        wxRichTextCharacterStyleDefinition* def = GetStyleSheet()->FindCharacterStyle(characterStyle);
+        if (def)
+        {
+            attr = def->GetStyleMergedWithBase(GetStyleSheet());
+        }
+    }
+    attr.SetURL(url);
+
+    return BeginStyle(attr);
+}
+
 /// Adds a handler to the end
 void wxRichTextBuffer::AddHandler(wxRichTextFileHandler *handler)
 {
@@ -4534,14 +5934,15 @@ bool wxRichTextBuffer::RemoveHandler(const wxString& name)
 }
 
 /// Finds a handler by filename or, if supplied, type
-wxRichTextFileHandler *wxRichTextBuffer::FindHandlerFilenameOrType(const wxString& filename, int imageType)
+wxRichTextFileHandler *wxRichTextBuffer::FindHandlerFilenameOrType(const wxString& filename,
+                                                                   wxRichTextFileType imageType)
 {
     if (imageType != wxRICHTEXT_TYPE_ANY)
         return FindHandler(imageType);
     else if (!filename.IsEmpty())
     {
         wxString path, file, ext;
-        wxSplitPath(filename, & path, & file, & ext);
+        wxFileName::SplitPath(filename, & path, & file, & ext);
         return FindHandler(ext, imageType);
     }
     else
@@ -4564,7 +5965,7 @@ wxRichTextFileHandler* wxRichTextBuffer::FindHandler(const wxString& name)
 }
 
 /// Finds a handler by extension and type
-wxRichTextFileHandler* wxRichTextBuffer::FindHandler(const wxString& extension, int type)
+wxRichTextFileHandler* wxRichTextBuffer::FindHandler(const wxString& extension, wxRichTextFileType type)
 {
     wxList::compatibility_iterator node = sm_handlers.GetFirst();
     while (node)
@@ -4579,7 +5980,7 @@ wxRichTextFileHandler* wxRichTextBuffer::FindHandler(const wxString& extension,
 }
 
 /// Finds a handler by type
-wxRichTextFileHandler* wxRichTextBuffer::FindHandler(int type)
+wxRichTextFileHandler* wxRichTextBuffer::FindHandler(wxRichTextFileType type)
 {
     wxList::compatibility_iterator node = sm_handlers.GetFirst();
     while (node)
@@ -4623,7 +6024,7 @@ wxString wxRichTextBuffer::GetExtWildcard(bool combine, bool save, wxArrayInt* t
     while (node)
     {
         wxRichTextFileHandler* handler = (wxRichTextFileHandler*) node->GetData();
-        if (handler->IsVisible() && ((save && handler->CanSave()) || !save && handler->CanLoad()))
+        if (handler->IsVisible() && ((save && handler->CanSave()) || (!save && handler->CanLoad())))
         {
             if (combine)
             {
@@ -4657,13 +6058,13 @@ wxString wxRichTextBuffer::GetExtWildcard(bool combine, bool save, wxArrayInt* t
 }
 
 /// Load a file
-bool wxRichTextBuffer::LoadFile(const wxString& filename, int type)
+bool wxRichTextBuffer::LoadFile(const wxString& filename, wxRichTextFileType type)
 {
     wxRichTextFileHandler* handler = FindHandlerFilenameOrType(filename, type);
     if (handler)
     {
-        SetDefaultStyle(wxTextAttrEx());
-
+        SetDefaultStyle(wxTextAttr());
+        handler->SetFlags(GetHandlerFlags());
         bool success = handler->LoadFile(this, filename);
         Invalidate(wxRICHTEXT_ALL);
         return success;
@@ -4673,22 +6074,26 @@ bool wxRichTextBuffer::LoadFile(const wxString& filename, int type)
 }
 
 /// Save a file
-bool wxRichTextBuffer::SaveFile(const wxString& filename, int type)
+bool wxRichTextBuffer::SaveFile(const wxString& filename, wxRichTextFileType type)
 {
     wxRichTextFileHandler* handler = FindHandlerFilenameOrType(filename, type);
     if (handler)
+    {
+        handler->SetFlags(GetHandlerFlags());
         return handler->SaveFile(this, filename);
+    }
     else
         return false;
 }
 
 /// Load from a stream
-bool wxRichTextBuffer::LoadFile(wxInputStream& stream, int type)
+bool wxRichTextBuffer::LoadFile(wxInputStream& stream, wxRichTextFileType type)
 {
     wxRichTextFileHandler* handler = FindHandler(type);
     if (handler)
     {
-        SetDefaultStyle(wxTextAttrEx());
+        SetDefaultStyle(wxTextAttr());
+        handler->SetFlags(GetHandlerFlags());
         bool success = handler->LoadFile(this, stream);
         Invalidate(wxRICHTEXT_ALL);
         return success;
@@ -4698,11 +6103,14 @@ bool wxRichTextBuffer::LoadFile(wxInputStream& stream, int type)
 }
 
 /// Save to a stream
-bool wxRichTextBuffer::SaveFile(wxOutputStream& stream, int type)
+bool wxRichTextBuffer::SaveFile(wxOutputStream& stream, wxRichTextFileType type)
 {
     wxRichTextFileHandler* handler = FindHandler(type);
     if (handler)
+    {
+        handler->SetFlags(GetHandlerFlags());
         return handler->SaveFile(this, stream);
+    }
     else
         return false;
 }
@@ -4769,7 +6177,9 @@ bool wxRichTextBuffer::PasteFromClipboard(long position)
                 wxRichTextBuffer* richTextBuffer = data.GetRichTextBuffer();
                 if (richTextBuffer)
                 {
-                    InsertParagraphsWithUndo(position+1, *richTextBuffer, GetRichTextCtrl(), wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE);
+                    InsertParagraphsWithUndo(position+1, *richTextBuffer, GetRichTextCtrl(), 0);
+                    if (GetRichTextCtrl())
+                        GetRichTextCtrl()->ShowPosition(position + richTextBuffer->GetRange().GetEnd());
                     delete richTextBuffer;
                 }
             }
@@ -4778,9 +6188,23 @@ bool wxRichTextBuffer::PasteFromClipboard(long position)
                 wxTextDataObject data;
                 wxTheClipboard->GetData(data);
                 wxString text(data.GetText());
-                text.Replace(_T("\r\n"), _T("\n"));
+#ifdef __WXMSW__
+                wxString text2;
+                text2.Alloc(text.Length()+1);
+                size_t i;
+                for (i = 0; i < text.Length(); i++)
+                {
+                    wxChar ch = text[i];
+                    if (ch != wxT('\r'))
+                        text2 += ch;
+                }
+#else
+                wxString text2 = text;
+#endif
+                InsertTextWithUndo(position+1, text2, GetRichTextCtrl(), wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE);
 
-                InsertTextWithUndo(position+1, text, GetRichTextCtrl());
+                if (GetRichTextCtrl())
+                    GetRichTextCtrl()->ShowPosition(position + text2.Length());
 
                 success = true;
             }
@@ -4798,10 +6222,10 @@ bool wxRichTextBuffer::PasteFromClipboard(long position)
                 if (action->GetNewParagraphs().GetChildCount() == 1)
                     action->GetNewParagraphs().SetPartialParagraph(true);
 
-                action->SetPosition(position);
+                action->SetPosition(position+1);
 
                 // Set the range we'll need to delete in Undo
-                action->SetRange(wxRichTextRange(position, position));
+                action->SetRange(wxRichTextRange(position+1, position+1));
 
                 SubmitAction(action);
 
@@ -4848,1434 +6272,1047 @@ void wxRichTextBuffer::Dump()
     wxLogDebug(text);
 }
 
-
-/*
- * Module to initialise and clean up handlers
- */
-
-class wxRichTextModule: public wxModule
-{
-DECLARE_DYNAMIC_CLASS(wxRichTextModule)
-public:
-    wxRichTextModule() {}
-    bool OnInit() { wxRichTextBuffer::InitStandardHandlers(); return true; };
-    void OnExit() { wxRichTextBuffer::CleanUpHandlers(); wxRichTextDecimalToRoman(-1); };
-};
-
-IMPLEMENT_DYNAMIC_CLASS(wxRichTextModule, wxModule)
-
-
-/*!
- * Commands for undo/redo
- *
- */
-
-wxRichTextCommand::wxRichTextCommand(const wxString& name, wxRichTextCommandId id, wxRichTextBuffer* buffer,
-                                     wxRichTextCtrl* ctrl, bool ignoreFirstTime): wxCommand(true, name)
+/// Add an event handler
+bool wxRichTextBuffer::AddEventHandler(wxEvtHandler* handler)
 {
-    /* wxRichTextAction* action = */ new wxRichTextAction(this, name, id, buffer, ctrl, ignoreFirstTime);
+    m_eventHandlers.Append(handler);
+    return true;
 }
 
-wxRichTextCommand::wxRichTextCommand(const wxString& name): wxCommand(true, name)
+/// Remove an event handler
+bool wxRichTextBuffer::RemoveEventHandler(wxEvtHandler* handler, bool deleteHandler)
 {
-}
+    wxList::compatibility_iterator node = m_eventHandlers.Find(handler);
+    if (node)
+    {
+        m_eventHandlers.Erase(node);
+        if (deleteHandler)
+            delete handler;
 
-wxRichTextCommand::~wxRichTextCommand()
-{
-    ClearActions();
+        return true;
+    }
+    else
+        return false;
 }
 
-void wxRichTextCommand::AddAction(wxRichTextAction* action)
+/// Clear event handlers
+void wxRichTextBuffer::ClearEventHandlers()
 {
-    if (!m_actions.Member(action))
-        m_actions.Append(action);
+    m_eventHandlers.Clear();
 }
 
-bool wxRichTextCommand::Do()
+/// Send event to event handlers. If sendToAll is true, will send to all event handlers,
+/// otherwise will stop at the first successful one.
+bool wxRichTextBuffer::SendEvent(wxEvent& event, bool sendToAll)
 {
-    for (wxList::compatibility_iterator node = m_actions.GetFirst(); node; node = node->GetNext())
+    bool success = false;
+    for (wxList::compatibility_iterator node = m_eventHandlers.GetFirst(); node; node = node->GetNext())
     {
-        wxRichTextAction* action = (wxRichTextAction*) node->GetData();
-        action->Do();
+        wxEvtHandler* handler = (wxEvtHandler*) node->GetData();
+        if (handler->ProcessEvent(event))
+        {
+            success = true;
+            if (!sendToAll)
+                return true;
+        }
     }
-
-    return true;
+    return success;
 }
 
-bool wxRichTextCommand::Undo()
+/// Set style sheet and notify of the change
+bool wxRichTextBuffer::SetStyleSheetAndNotify(wxRichTextStyleSheet* sheet)
 {
-    for (wxList::compatibility_iterator node = m_actions.GetLast(); node; node = node->GetPrevious())
+    wxRichTextStyleSheet* oldSheet = GetStyleSheet();
+
+    wxWindowID id = wxID_ANY;
+    if (GetRichTextCtrl())
+        id = GetRichTextCtrl()->GetId();
+
+    wxRichTextEvent event(wxEVT_COMMAND_RICHTEXT_STYLESHEET_REPLACING, id);
+    event.SetEventObject(GetRichTextCtrl());
+    event.SetOldStyleSheet(oldSheet);
+    event.SetNewStyleSheet(sheet);
+    event.Allow();
+
+    if (SendEvent(event) && !event.IsAllowed())
     {
-        wxRichTextAction* action = (wxRichTextAction*) node->GetData();
-        action->Undo();
+        if (sheet != oldSheet)
+            delete sheet;
+
+        return false;
     }
 
-    return true;
-}
+    if (oldSheet && oldSheet != sheet)
+        delete oldSheet;
 
-void wxRichTextCommand::ClearActions()
-{
-    WX_CLEAR_LIST(wxList, m_actions);
-}
+    SetStyleSheet(sheet);
 
-/*!
- * Individual action
- *
- */
+    event.SetEventType(wxEVT_COMMAND_RICHTEXT_STYLESHEET_REPLACED);
+    event.SetOldStyleSheet(NULL);
+    event.Allow();
 
-wxRichTextAction::wxRichTextAction(wxRichTextCommand* cmd, const wxString& name, wxRichTextCommandId id, wxRichTextBuffer* buffer,
-                                     wxRichTextCtrl* ctrl, bool ignoreFirstTime)
-{
-    m_buffer = buffer;
-    m_ignoreThis = ignoreFirstTime;
-    m_cmdId = id;
-    m_position = -1;
-    m_ctrl = ctrl;
-    m_name = name;
-    m_newParagraphs.SetDefaultStyle(buffer->GetDefaultStyle());
-    m_newParagraphs.SetBasicStyle(buffer->GetBasicStyle());
-    if (cmd)
-        cmd->AddAction(this);
+    return SendEvent(event);
 }
 
-wxRichTextAction::~wxRichTextAction()
+/// Set renderer, deleting old one
+void wxRichTextBuffer::SetRenderer(wxRichTextRenderer* renderer)
 {
+    if (sm_renderer)
+        delete sm_renderer;
+    sm_renderer = renderer;
 }
 
-bool wxRichTextAction::Do()
+bool wxRichTextStdRenderer::DrawStandardBullet(wxRichTextParagraph* paragraph, wxDC& dc, const wxTextAttr& bulletAttr, const wxRect& rect)
 {
-    m_buffer->Modify(true);
+    if (bulletAttr.GetTextColour().Ok())
+    {
+        wxCheckSetPen(dc, wxPen(bulletAttr.GetTextColour()));
+        wxCheckSetBrush(dc, wxBrush(bulletAttr.GetTextColour()));
+    }
+    else
+    {
+        wxCheckSetPen(dc, *wxBLACK_PEN);
+        wxCheckSetBrush(dc, *wxBLACK_BRUSH);
+    }
 
-    switch (m_cmdId)
+    wxFont font;
+    if (bulletAttr.HasFont())
     {
-    case wxRICHTEXT_INSERT:
-        {
-            m_buffer->InsertFragment(GetPosition(), m_newParagraphs);
-            m_buffer->UpdateRanges();
-            m_buffer->Invalidate(GetRange());
+        font = paragraph->GetBuffer()->GetFontTable().FindFont(bulletAttr);
+    }
+    else
+        font = (*wxNORMAL_FONT);
 
-            long newCaretPosition = GetPosition() + m_newParagraphs.GetRange().GetLength();
+    wxCheckSetFont(dc, font);
 
-            // Character position to caret position
-            newCaretPosition --;
+    int charHeight = dc.GetCharHeight();
 
-            // Don't take into account the last newline
-            if (m_newParagraphs.GetPartialParagraph())
-                newCaretPosition --;
+    int bulletWidth = (int) (((float) charHeight) * wxRichTextBuffer::GetBulletProportion());
+    int bulletHeight = bulletWidth;
 
-            newCaretPosition = wxMin(newCaretPosition, (m_buffer->GetRange().GetEnd()-1));
+    int x = rect.x;
 
-            UpdateAppearance(newCaretPosition, true /* send update event */);
+    // Calculate the top position of the character (as opposed to the whole line height)
+    int y = rect.y + (rect.height - charHeight);
 
-            break;
-        }
-    case wxRICHTEXT_DELETE:
-        {
-            m_buffer->DeleteRange(GetRange());
-            m_buffer->UpdateRanges();
-            m_buffer->Invalidate(wxRichTextRange(GetRange().GetStart(), GetRange().GetStart()));
+    // Calculate where the bullet should be positioned
+    y = y + (charHeight+1)/2 - (bulletHeight+1)/2;
 
-            UpdateAppearance(GetRange().GetStart()-1, true /* send update event */);
+    // The margin between a bullet and text.
+    int margin = paragraph->ConvertTenthsMMToPixels(dc, wxRichTextBuffer::GetBulletRightMargin());
 
-            break;
-        }
-    case wxRICHTEXT_CHANGE_STYLE:
-        {
-            ApplyParagraphs(GetNewParagraphs());
-            m_buffer->Invalidate(GetRange());
+    if (bulletAttr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ALIGN_RIGHT)
+        x = rect.x + rect.width - bulletWidth - margin;
+    else if (bulletAttr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ALIGN_CENTRE)
+        x = x + (rect.width)/2 - bulletWidth/2;
 
-            UpdateAppearance(GetPosition());
+    if (bulletAttr.GetBulletName() == wxT("standard/square"))
+    {
+        dc.DrawRectangle(x, y, bulletWidth, bulletHeight);
+    }
+    else if (bulletAttr.GetBulletName() == wxT("standard/diamond"))
+    {
+        wxPoint pts[5];
+        pts[0].x = x;                   pts[0].y = y + bulletHeight/2;
+        pts[1].x = x + bulletWidth/2;   pts[1].y = y;
+        pts[2].x = x + bulletWidth;     pts[2].y = y + bulletHeight/2;
+        pts[3].x = x + bulletWidth/2;   pts[3].y = y + bulletHeight;
 
-            break;
-        }
-    default:
-        break;
+        dc.DrawPolygon(4, pts);
+    }
+    else if (bulletAttr.GetBulletName() == wxT("standard/triangle"))
+    {
+        wxPoint pts[3];
+        pts[0].x = x;                   pts[0].y = y;
+        pts[1].x = x + bulletWidth;     pts[1].y = y + bulletHeight/2;
+        pts[2].x = x;                   pts[2].y = y + bulletHeight;
+
+        dc.DrawPolygon(3, pts);
+    }
+    else // "standard/circle", and catch-all
+    {
+        dc.DrawEllipse(x, y, bulletWidth, bulletHeight);
     }
 
     return true;
 }
 
-bool wxRichTextAction::Undo()
+bool wxRichTextStdRenderer::DrawTextBullet(wxRichTextParagraph* paragraph, wxDC& dc, const wxTextAttr& attr, const wxRect& rect, const wxString& text)
 {
-    m_buffer->Modify(true);
-
-    switch (m_cmdId)
+    if (!text.empty())
     {
-    case wxRICHTEXT_INSERT:
+        wxFont font;
+        if ((attr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_SYMBOL) && !attr.GetBulletFont().IsEmpty() && attr.HasFont())
         {
-            m_buffer->DeleteRange(GetRange());
-            m_buffer->UpdateRanges();
-            m_buffer->Invalidate(wxRichTextRange(GetRange().GetStart(), GetRange().GetStart()));
+            wxTextAttr fontAttr;
+            fontAttr.SetFontSize(attr.GetFontSize());
+            fontAttr.SetFontStyle(attr.GetFontStyle());
+            fontAttr.SetFontWeight(attr.GetFontWeight());
+            fontAttr.SetFontUnderlined(attr.GetFontUnderlined());
+            fontAttr.SetFontFaceName(attr.GetBulletFont());
+            font = paragraph->GetBuffer()->GetFontTable().FindFont(fontAttr);
+        }
+        else if (attr.HasFont())
+            font = paragraph->GetBuffer()->GetFontTable().FindFont(attr);
+        else
+            font = (*wxNORMAL_FONT);
 
-            long newCaretPosition = GetPosition() - 1;
-            // if (m_newParagraphs.GetPartialParagraph())
-            //    newCaretPosition --;
+        wxCheckSetFont(dc, font);
 
-            UpdateAppearance(newCaretPosition, true /* send update event */);
+        if (attr.GetTextColour().Ok())
+            dc.SetTextForeground(attr.GetTextColour());
 
-            break;
-        }
-    case wxRICHTEXT_DELETE:
-        {
-            m_buffer->InsertFragment(GetRange().GetStart(), m_oldParagraphs);
-            m_buffer->UpdateRanges();
-            m_buffer->Invalidate(GetRange());
+        dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
 
-            UpdateAppearance(GetPosition(), true /* send update event */);
+        int charHeight = dc.GetCharHeight();
+        wxCoord tw, th;
+        dc.GetTextExtent(text, & tw, & th);
 
-            break;
-        }
-    case wxRICHTEXT_CHANGE_STYLE:
-        {
-            ApplyParagraphs(GetOldParagraphs());
-            m_buffer->Invalidate(GetRange());
+        int x = rect.x;
 
-            UpdateAppearance(GetPosition());
+        // Calculate the top position of the character (as opposed to the whole line height)
+        int y = rect.y + (rect.height - charHeight);
 
-            break;
-        }
-    default:
-        break;
-    }
+        // The margin between a bullet and text.
+        int margin = paragraph->ConvertTenthsMMToPixels(dc, wxRichTextBuffer::GetBulletRightMargin());
 
-    return true;
-}
+        if (attr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ALIGN_RIGHT)
+            x = (rect.x + rect.width) - tw - margin;
+        else if (attr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ALIGN_CENTRE)
+            x = x + (rect.width)/2 - tw/2;
 
-/// Update the control appearance
-void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent)
-{
-    if (m_ctrl)
-    {
-        m_ctrl->SetCaretPosition(caretPosition);
-        if (!m_ctrl->IsFrozen())
-        {
-            m_ctrl->LayoutContent();
-            m_ctrl->PositionCaret();
-            m_ctrl->Refresh(false);
+        dc.DrawText(text, x, y);
 
-            if (sendUpdateEvent)
-                m_ctrl->SendUpdateEvent();
-        }
+        return true;
     }
+    else
+        return false;
 }
 
-/// Replace the buffer paragraphs with the new ones.
-void wxRichTextAction::ApplyParagraphs(const wxRichTextParagraphLayoutBox& fragment)
-{
-    wxRichTextObjectList::compatibility_iterator node = fragment.GetChildren().GetFirst();
-    while (node)
-    {
-        wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph);
-        wxASSERT (para != NULL);
-
-        // We'll replace the existing paragraph by finding the paragraph at this position,
-        // delete its node data, and setting a copy as the new node data.
-        // TODO: make more efficient by simply swapping old and new paragraph objects.
-
-        wxRichTextParagraph* existingPara = m_buffer->GetParagraphAtPosition(para->GetRange().GetStart());
-        if (existingPara)
-        {
-            wxRichTextObjectList::compatibility_iterator bufferParaNode = m_buffer->GetChildren().Find(existingPara);
-            if (bufferParaNode)
-            {
-                wxRichTextParagraph* newPara = new wxRichTextParagraph(*para);
-                newPara->SetParent(m_buffer);
-
-                bufferParaNode->SetData(newPara);
-
-                delete existingPara;
-            }
-        }
-
-        node = node->GetNext();
-    }
+bool wxRichTextStdRenderer::DrawBitmapBullet(wxRichTextParagraph* WXUNUSED(paragraph), wxDC& WXUNUSED(dc), const wxTextAttr& WXUNUSED(attr), const wxRect& WXUNUSED(rect))
+{
+    // Currently unimplemented. The intention is to store bitmaps by name in a media store associated
+    // with the buffer. The store will allow retrieval from memory, disk or other means.
+    return false;
 }
 
+/// Enumerate the standard bullet names currently supported
+bool wxRichTextStdRenderer::EnumerateStandardBulletNames(wxArrayString& bulletNames)
+{
+    bulletNames.Add(wxTRANSLATE("standard/circle"));
+    bulletNames.Add(wxTRANSLATE("standard/square"));
+    bulletNames.Add(wxTRANSLATE("standard/diamond"));
+    bulletNames.Add(wxTRANSLATE("standard/triangle"));
 
-/*!
- * wxRichTextRange
- * This stores beginning and end positions for a range of data.
+    return true;
+}
+
+/*
+ * Module to initialise and clean up handlers
  */
 
-/// Limit this range to be within 'range'
-bool wxRichTextRange::LimitTo(const wxRichTextRange& range)
+class wxRichTextModule: public wxModule
 {
-    if (m_start < range.m_start)
-        m_start = range.m_start;
+DECLARE_DYNAMIC_CLASS(wxRichTextModule)
+public:
+    wxRichTextModule() {}
+    bool OnInit()
+    {
+        wxRichTextBuffer::SetRenderer(new wxRichTextStdRenderer);
+        wxRichTextBuffer::InitStandardHandlers();
+        wxRichTextParagraph::InitDefaultTabs();
+        return true;
+    }
+    void OnExit()
+    {
+        wxRichTextBuffer::CleanUpHandlers();
+        wxRichTextDecimalToRoman(-1);
+        wxRichTextParagraph::ClearDefaultTabs();
+        wxRichTextCtrl::ClearAvailableFontNames();
+        wxRichTextBuffer::SetRenderer(NULL);
+    }
+};
 
-    if (m_end > range.m_end)
-        m_end = range.m_end;
+IMPLEMENT_DYNAMIC_CLASS(wxRichTextModule, wxModule)
 
-    return true;
+
+// If the richtext lib is dynamically loaded after the app has already started
+// (such as from wxPython) then the built-in module system will not init this
+// module.  Provide this function to do it manually.
+void wxRichTextModuleInit()
+{
+    wxModule* module = new wxRichTextModule;
+    module->Init();
+    wxModule::RegisterModule(module);
 }
 
+
 /*!
- * wxRichTextImage implementation
- * This object represents an image.
+ * Commands for undo/redo
+ *
  */
 
-IMPLEMENT_DYNAMIC_CLASS(wxRichTextImage, wxRichTextObject)
-
-wxRichTextImage::wxRichTextImage(const wxImage& image, wxRichTextObject* parent):
-    wxRichTextObject(parent)
+wxRichTextCommand::wxRichTextCommand(const wxString& name, wxRichTextCommandId id, wxRichTextBuffer* buffer,
+                                     wxRichTextCtrl* ctrl, bool ignoreFirstTime): wxCommand(true, name)
 {
-    m_image = image;
+    /* wxRichTextAction* action = */ new wxRichTextAction(this, name, id, buffer, ctrl, ignoreFirstTime);
 }
 
-wxRichTextImage::wxRichTextImage(const wxRichTextImageBlock& imageBlock, wxRichTextObject* parent):
-    wxRichTextObject(parent)
+wxRichTextCommand::wxRichTextCommand(const wxString& name): wxCommand(true, name)
 {
-    m_imageBlock = imageBlock;
-    m_imageBlock.Load(m_image);
 }
 
-/// Load wxImage from the block
-bool wxRichTextImage::LoadFromBlock()
+wxRichTextCommand::~wxRichTextCommand()
 {
-    m_imageBlock.Load(m_image);
-    return m_imageBlock.Ok();
+    ClearActions();
 }
 
-/// Make block from the wxImage
-bool wxRichTextImage::MakeBlock()
+void wxRichTextCommand::AddAction(wxRichTextAction* action)
 {
-    if (m_imageBlock.GetImageType() == wxBITMAP_TYPE_ANY || m_imageBlock.GetImageType() == -1)
-        m_imageBlock.SetImageType(wxBITMAP_TYPE_PNG);
-
-    m_imageBlock.MakeImageBlock(m_image, m_imageBlock.GetImageType());
-    return m_imageBlock.Ok();
+    if (!m_actions.Member(action))
+        m_actions.Append(action);
 }
 
-
-/// Draw the item
-bool wxRichTextImage::Draw(wxDC& dc, const wxRichTextRange& range, const wxRichTextRange& selectionRange, const wxRect& rect, int WXUNUSED(descent), int WXUNUSED(style))
+bool wxRichTextCommand::Do()
 {
-    if (!m_image.Ok() && m_imageBlock.Ok())
-        LoadFromBlock();
-
-    if (!m_image.Ok())
-        return false;
-
-    if (m_image.Ok() && !m_bitmap.Ok())
-        m_bitmap = wxBitmap(m_image);
-
-    int y = rect.y + (rect.height - m_image.GetHeight());
-
-    if (m_bitmap.Ok())
-        dc.DrawBitmap(m_bitmap, rect.x, y, true);
-
-    if (selectionRange.Contains(range.GetStart()))
+    for (wxList::compatibility_iterator node = m_actions.GetFirst(); node; node = node->GetNext())
     {
-        dc.SetBrush(*wxBLACK_BRUSH);
-        dc.SetPen(*wxBLACK_PEN);
-        dc.SetLogicalFunction(wxINVERT);
-        dc.DrawRectangle(rect);
-        dc.SetLogicalFunction(wxCOPY);
+        wxRichTextAction* action = (wxRichTextAction*) node->GetData();
+        action->Do();
     }
 
     return true;
 }
 
-/// Lay the item out
-bool wxRichTextImage::Layout(wxDC& WXUNUSED(dc), const wxRect& rect, int WXUNUSED(style))
+bool wxRichTextCommand::Undo()
 {
-    if (!m_image.Ok())
-        LoadFromBlock();
-
-    if (m_image.Ok())
+    for (wxList::compatibility_iterator node = m_actions.GetLast(); node; node = node->GetPrevious())
     {
-        SetCachedSize(wxSize(m_image.GetWidth(), m_image.GetHeight()));
-        SetPosition(rect.GetPosition());
+        wxRichTextAction* action = (wxRichTextAction*) node->GetData();
+        action->Undo();
     }
 
     return true;
 }
 
-/// Get/set the object size for the given range. Returns false if the range
-/// is invalid for this object.
-bool wxRichTextImage::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& WXUNUSED(descent), wxDC& WXUNUSED(dc), int WXUNUSED(flags), wxPoint WXUNUSED(position)) const
-{
-    if (!range.IsWithin(GetRange()))
-        return false;
-
-    if (!m_image.Ok())
-        return false;
-
-    size.x = m_image.GetWidth();
-    size.y = m_image.GetHeight();
-
-    return true;
-}
-
-/// Copy
-void wxRichTextImage::Copy(const wxRichTextImage& obj)
+void wxRichTextCommand::ClearActions()
 {
-    wxRichTextObject::Copy(obj);
-
-    m_image = obj.m_image;
-    m_imageBlock = obj.m_imageBlock;
+    WX_CLEAR_LIST(wxList, m_actions);
 }
 
 /*!
- * Utilities
+ * Individual action
  *
  */
 
-/// Compare two attribute objects
-bool wxTextAttrEq(const wxTextAttrEx& attr1, const wxTextAttrEx& attr2)
-{
-    return (
-        attr1.GetTextColour() == attr2.GetTextColour() &&
-        attr1.GetBackgroundColour() == attr2.GetBackgroundColour() &&
-        attr1.GetFont() == attr2.GetFont() &&
-        attr1.GetAlignment() == attr2.GetAlignment() &&
-        attr1.GetLeftIndent() == attr2.GetLeftIndent() &&
-        attr1.GetRightIndent() == attr2.GetRightIndent() &&
-        attr1.GetLeftSubIndent() == attr2.GetLeftSubIndent() &&
-        wxRichTextTabsEq(attr1.GetTabs(), attr2.GetTabs()) &&
-        attr1.GetLineSpacing() == attr2.GetLineSpacing() &&
-        attr1.GetParagraphSpacingAfter() == attr2.GetParagraphSpacingAfter() &&
-        attr1.GetParagraphSpacingBefore() == attr2.GetParagraphSpacingBefore() &&
-        attr1.GetBulletStyle() == attr2.GetBulletStyle() &&
-        attr1.GetBulletNumber() == attr2.GetBulletNumber() &&
-        attr1.GetBulletSymbol() == attr2.GetBulletSymbol() &&
-        attr1.GetBulletFont() == attr2.GetBulletFont() &&
-        attr1.GetCharacterStyleName() == attr2.GetCharacterStyleName() &&
-        attr1.GetParagraphStyleName() == attr2.GetParagraphStyleName());
-}
-
-bool wxTextAttrEq(const wxTextAttrEx& attr1, const wxRichTextAttr& attr2)
-{
-    return (
-        attr1.GetTextColour() == attr2.GetTextColour() &&
-        attr1.GetBackgroundColour() == attr2.GetBackgroundColour() &&
-        attr1.GetFont().GetPointSize() == attr2.GetFontSize() &&
-        attr1.GetFont().GetStyle() == attr2.GetFontStyle() &&
-        attr1.GetFont().GetWeight() == attr2.GetFontWeight() &&
-        attr1.GetFont().GetFaceName() == attr2.GetFontFaceName() &&
-        attr1.GetFont().GetUnderlined() == attr2.GetFontUnderlined() &&
-        attr1.GetAlignment() == attr2.GetAlignment() &&
-        attr1.GetLeftIndent() == attr2.GetLeftIndent() &&
-        attr1.GetRightIndent() == attr2.GetRightIndent() &&
-        attr1.GetLeftSubIndent() == attr2.GetLeftSubIndent() &&
-        wxRichTextTabsEq(attr1.GetTabs(), attr2.GetTabs()) &&
-        attr1.GetLineSpacing() == attr2.GetLineSpacing() &&
-        attr1.GetParagraphSpacingAfter() == attr2.GetParagraphSpacingAfter() &&
-        attr1.GetParagraphSpacingBefore() == attr2.GetParagraphSpacingBefore() &&
-        attr1.GetBulletStyle() == attr2.GetBulletStyle() &&
-        attr1.GetBulletNumber() == attr2.GetBulletNumber() &&
-        attr1.GetBulletSymbol() == attr2.GetBulletSymbol() &&
-        attr1.GetBulletFont() == attr2.GetBulletFont() &&
-        attr1.GetCharacterStyleName() == attr2.GetCharacterStyleName() &&
-        attr1.GetParagraphStyleName() == attr2.GetParagraphStyleName());
-}
-
-/// Compare two attribute objects, but take into account the flags
-/// specifying attributes of interest.
-bool wxTextAttrEqPartial(const wxTextAttrEx& attr1, const wxTextAttrEx& attr2, int flags)
-{
-    if ((flags & wxTEXT_ATTR_TEXT_COLOUR) && attr1.GetTextColour() != attr2.GetTextColour())
-        return false;
-
-    if ((flags & wxTEXT_ATTR_BACKGROUND_COLOUR) && attr1.GetBackgroundColour() != attr2.GetBackgroundColour())
-        return false;
-
-    if ((flags & wxTEXT_ATTR_FONT_FACE) && attr1.GetFont().Ok() && attr2.GetFont().Ok() &&
-        attr1.GetFont().GetFaceName() != attr2.GetFont().GetFaceName())
-        return false;
-
-    if ((flags & wxTEXT_ATTR_FONT_SIZE) && attr1.GetFont().Ok() && attr2.GetFont().Ok() &&
-        attr1.GetFont().GetPointSize() != attr2.GetFont().GetPointSize())
-        return false;
-
-    if ((flags & wxTEXT_ATTR_FONT_WEIGHT) && attr1.GetFont().Ok() && attr2.GetFont().Ok() &&
-        attr1.GetFont().GetWeight() != attr2.GetFont().GetWeight())
-        return false;
-
-    if ((flags & wxTEXT_ATTR_FONT_ITALIC) && attr1.GetFont().Ok() && attr2.GetFont().Ok() &&
-        attr1.GetFont().GetStyle() != attr2.GetFont().GetStyle())
-        return false;
-
-    if ((flags & wxTEXT_ATTR_FONT_UNDERLINE) && attr1.GetFont().Ok() && attr2.GetFont().Ok() &&
-        attr1.GetFont().GetUnderlined() != attr2.GetFont().GetUnderlined())
-        return false;
-
-    if ((flags & wxTEXT_ATTR_ALIGNMENT) && attr1.GetAlignment() != attr2.GetAlignment())
-        return false;
-
-    if ((flags & wxTEXT_ATTR_LEFT_INDENT) &&
-        ((attr1.GetLeftIndent() != attr2.GetLeftIndent()) || (attr1.GetLeftSubIndent() != attr2.GetLeftSubIndent())))
-        return false;
-
-    if ((flags & wxTEXT_ATTR_RIGHT_INDENT) &&
-        (attr1.GetRightIndent() != attr2.GetRightIndent()))
-        return false;
-
-    if ((flags & wxTEXT_ATTR_PARA_SPACING_AFTER) &&
-        (attr1.GetParagraphSpacingAfter() != attr2.GetParagraphSpacingAfter()))
-        return false;
-
-    if ((flags & wxTEXT_ATTR_PARA_SPACING_BEFORE) &&
-        (attr1.GetParagraphSpacingBefore() != attr2.GetParagraphSpacingBefore()))
-        return false;
-
-    if ((flags & wxTEXT_ATTR_LINE_SPACING) &&
-        (attr1.GetLineSpacing() != attr2.GetLineSpacing()))
-        return false;
-
-    if ((flags & wxTEXT_ATTR_CHARACTER_STYLE_NAME) &&
-        (attr1.GetCharacterStyleName() != attr2.GetCharacterStyleName()))
-        return false;
+wxRichTextAction::wxRichTextAction(wxRichTextCommand* cmd, const wxString& name, wxRichTextCommandId id, wxRichTextBuffer* buffer,
+                                     wxRichTextCtrl* ctrl, bool ignoreFirstTime)
+{
+    m_buffer = buffer;
+    m_ignoreThis = ignoreFirstTime;
+    m_cmdId = id;
+    m_position = -1;
+    m_ctrl = ctrl;
+    m_name = name;
+    m_newParagraphs.SetDefaultStyle(buffer->GetDefaultStyle());
+    m_newParagraphs.SetBasicStyle(buffer->GetBasicStyle());
+    if (cmd)
+        cmd->AddAction(this);
+}
 
-    if ((flags & wxTEXT_ATTR_PARAGRAPH_STYLE_NAME) &&
-        (attr1.GetParagraphStyleName() != attr2.GetParagraphStyleName()))
-        return false;
+wxRichTextAction::~wxRichTextAction()
+{
+}
 
-    if ((flags & wxTEXT_ATTR_BULLET_STYLE) &&
-        (attr1.GetBulletStyle() != attr2.GetBulletStyle()))
-         return false;
+void wxRichTextAction::CalculateRefreshOptimizations(wxArrayInt& optimizationLineCharPositions, wxArrayInt& optimizationLineYPositions)
+{
+    // Store a list of line start character and y positions so we can figure out which area
+    // we need to refresh
 
-    if ((flags & wxTEXT_ATTR_BULLET_NUMBER) &&
-        (attr1.GetBulletNumber() != attr2.GetBulletNumber()))
-         return false;
+#if wxRICHTEXT_USE_OPTIMIZED_DRAWING
+    // NOTE: we're assuming that the buffer is laid out correctly at this point.
+    // If we had several actions, which only invalidate and leave layout until the
+    // paint handler is called, then this might not be true. So we may need to switch
+    // optimisation on only when we're simply adding text and not simultaneously
+    // deleting a selection, for example. Or, we make sure the buffer is laid out correctly
+    // first, but of course this means we'll be doing it twice.
+    if (!m_buffer->GetDirty() && m_ctrl) // can only do optimisation if the buffer is already laid out correctly
+    {
+        wxSize clientSize = m_ctrl->GetClientSize();
+        wxPoint firstVisiblePt = m_ctrl->GetFirstVisiblePoint();
+        int lastY = firstVisiblePt.y + clientSize.y;
 
-    if ((flags & wxTEXT_ATTR_BULLET_SYMBOL) &&
-        (attr1.GetBulletSymbol() != attr2.GetBulletSymbol()))
-         return false;
+        wxRichTextParagraph* para = m_buffer->GetParagraphAtPosition(GetRange().GetStart());
+        wxRichTextObjectList::compatibility_iterator node = m_buffer->GetChildren().Find(para);
+        while (node)
+        {
+            wxRichTextParagraph* child = (wxRichTextParagraph*) node->GetData();
+            wxRichTextLineList::compatibility_iterator node2 = child->GetLines().GetFirst();
+            while (node2)
+            {
+                wxRichTextLine* line = node2->GetData();
+                wxPoint pt = line->GetAbsolutePosition();
+                wxRichTextRange range = line->GetAbsoluteRange();
 
-    if ((flags & wxTEXT_ATTR_BULLET_SYMBOL) &&
-        (attr1.GetBulletFont() != attr2.GetBulletFont()))
-         return false;
+                if (pt.y > lastY)
+                {
+                    node2 = wxRichTextLineList::compatibility_iterator();
+                    node = wxRichTextObjectList::compatibility_iterator();
+                }
+                else if (range.GetStart() > GetPosition() && pt.y >= firstVisiblePt.y)
+                {
+                    optimizationLineCharPositions.Add(range.GetStart());
+                    optimizationLineYPositions.Add(pt.y);
+                }
 
-    if ((flags & wxTEXT_ATTR_TABS) &&
-        !wxRichTextTabsEq(attr1.GetTabs(), attr2.GetTabs()))
-        return false;
+                if (node2)
+                    node2 = node2->GetNext();
+            }
 
-    return true;
+            if (node)
+                node = node->GetNext();
+        }
+    }
+#endif
 }
 
-bool wxTextAttrEqPartial(const wxTextAttrEx& attr1, const wxRichTextAttr& attr2, int flags)
+bool wxRichTextAction::Do()
 {
-    if ((flags & wxTEXT_ATTR_TEXT_COLOUR) && attr1.GetTextColour() != attr2.GetTextColour())
-        return false;
-
-    if ((flags & wxTEXT_ATTR_BACKGROUND_COLOUR) && attr1.GetBackgroundColour() != attr2.GetBackgroundColour())
-        return false;
+    m_buffer->Modify(true);
 
-    if ((flags & (wxTEXT_ATTR_FONT)) && !attr1.GetFont().Ok())
-        return false;
+    switch (m_cmdId)
+    {
+    case wxRICHTEXT_INSERT:
+        {
+            // Store a list of line start character and y positions so we can figure out which area
+            // we need to refresh
+            wxArrayInt optimizationLineCharPositions;
+            wxArrayInt optimizationLineYPositions;
 
-    if ((flags & wxTEXT_ATTR_FONT_FACE) && attr1.GetFont().Ok() &&
-        attr1.GetFont().GetFaceName() != attr2.GetFontFaceName())
-        return false;
+#if wxRICHTEXT_USE_OPTIMIZED_DRAWING
+            CalculateRefreshOptimizations(optimizationLineCharPositions, optimizationLineYPositions);
+#endif
 
-    if ((flags & wxTEXT_ATTR_FONT_SIZE) && attr1.GetFont().Ok() &&
-        attr1.GetFont().GetPointSize() != attr2.GetFontSize())
-        return false;
+            m_buffer->InsertFragment(GetRange().GetStart(), m_newParagraphs);
+            m_buffer->UpdateRanges();
+            m_buffer->Invalidate(wxRichTextRange(wxMax(0, GetRange().GetStart()-1), GetRange().GetEnd()));
 
-    if ((flags & wxTEXT_ATTR_FONT_WEIGHT) && attr1.GetFont().Ok() &&
-        attr1.GetFont().GetWeight() != attr2.GetFontWeight())
-        return false;
+            long newCaretPosition = GetPosition() + m_newParagraphs.GetRange().GetLength();
 
-    if ((flags & wxTEXT_ATTR_FONT_ITALIC) && attr1.GetFont().Ok() &&
-        attr1.GetFont().GetStyle() != attr2.GetFontStyle())
-        return false;
+            // Character position to caret position
+            newCaretPosition --;
 
-    if ((flags & wxTEXT_ATTR_FONT_UNDERLINE) && attr1.GetFont().Ok() &&
-        attr1.GetFont().GetUnderlined() != attr2.GetFontUnderlined())
-        return false;
+            // Don't take into account the last newline
+            if (m_newParagraphs.GetPartialParagraph())
+                newCaretPosition --;
+            else
+                if (m_newParagraphs.GetChildren().GetCount() > 1)
+                {
+                    wxRichTextObject* p = (wxRichTextObject*) m_newParagraphs.GetChildren().GetLast()->GetData();
+                    if (p->GetRange().GetLength() == 1)
+                        newCaretPosition --;
+                }
 
-    if ((flags & wxTEXT_ATTR_ALIGNMENT) && attr1.GetAlignment() != attr2.GetAlignment())
-        return false;
+            newCaretPosition = wxMin(newCaretPosition, (m_buffer->GetRange().GetEnd()-1));
 
-    if ((flags & wxTEXT_ATTR_LEFT_INDENT) &&
-        ((attr1.GetLeftIndent() != attr2.GetLeftIndent()) || (attr1.GetLeftSubIndent() != attr2.GetLeftSubIndent())))
-        return false;
+            UpdateAppearance(newCaretPosition, true /* send update event */, & optimizationLineCharPositions, & optimizationLineYPositions, true /* do */);
 
-    if ((flags & wxTEXT_ATTR_RIGHT_INDENT) &&
-        (attr1.GetRightIndent() != attr2.GetRightIndent()))
-        return false;
+            wxRichTextEvent cmdEvent(
+                wxEVT_COMMAND_RICHTEXT_CONTENT_INSERTED,
+                m_ctrl ? m_ctrl->GetId() : -1);
+            cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
+            cmdEvent.SetRange(GetRange());
+            cmdEvent.SetPosition(GetRange().GetStart());
 
-    if ((flags & wxTEXT_ATTR_PARA_SPACING_AFTER) &&
-        (attr1.GetParagraphSpacingAfter() != attr2.GetParagraphSpacingAfter()))
-        return false;
+            m_buffer->SendEvent(cmdEvent);
 
-    if ((flags & wxTEXT_ATTR_PARA_SPACING_BEFORE) &&
-        (attr1.GetParagraphSpacingBefore() != attr2.GetParagraphSpacingBefore()))
-        return false;
+            break;
+        }
+    case wxRICHTEXT_DELETE:
+        {
+            wxArrayInt optimizationLineCharPositions;
+            wxArrayInt optimizationLineYPositions;
 
-    if ((flags & wxTEXT_ATTR_LINE_SPACING) &&
-        (attr1.GetLineSpacing() != attr2.GetLineSpacing()))
-        return false;
+#if wxRICHTEXT_USE_OPTIMIZED_DRAWING
+            CalculateRefreshOptimizations(optimizationLineCharPositions, optimizationLineYPositions);
+#endif
 
-    if ((flags & wxTEXT_ATTR_CHARACTER_STYLE_NAME) &&
-        (attr1.GetCharacterStyleName() != attr2.GetCharacterStyleName()))
-        return false;
+            m_buffer->DeleteRange(GetRange());
+            m_buffer->UpdateRanges();
+            m_buffer->Invalidate(wxRichTextRange(GetRange().GetStart(), GetRange().GetStart()));
 
-    if ((flags & wxTEXT_ATTR_PARAGRAPH_STYLE_NAME) &&
-        (attr1.GetParagraphStyleName() != attr2.GetParagraphStyleName()))
-        return false;
+            long caretPos = GetRange().GetStart()-1;
+            if (caretPos >= m_buffer->GetRange().GetEnd())
+                caretPos --;
 
-    if ((flags & wxTEXT_ATTR_BULLET_STYLE) &&
-        (attr1.GetBulletStyle() != attr2.GetBulletStyle()))
-         return false;
+            UpdateAppearance(caretPos, true /* send update event */, & optimizationLineCharPositions, & optimizationLineYPositions, true /* do */);
 
-    if ((flags & wxTEXT_ATTR_BULLET_NUMBER) &&
-        (attr1.GetBulletNumber() != attr2.GetBulletNumber()))
-         return false;
+            wxRichTextEvent cmdEvent(
+                wxEVT_COMMAND_RICHTEXT_CONTENT_DELETED,
+                m_ctrl ? m_ctrl->GetId() : -1);
+            cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
+            cmdEvent.SetRange(GetRange());
+            cmdEvent.SetPosition(GetRange().GetStart());
 
-    if ((flags & wxTEXT_ATTR_BULLET_SYMBOL) &&
-        (attr1.GetBulletSymbol() != attr2.GetBulletSymbol()))
-         return false;
+            m_buffer->SendEvent(cmdEvent);
 
-    if ((flags & wxTEXT_ATTR_BULLET_SYMBOL) &&
-        (attr1.GetBulletFont() != attr2.GetBulletFont()))
-         return false;
+            break;
+        }
+    case wxRICHTEXT_CHANGE_STYLE:
+        {
+            ApplyParagraphs(GetNewParagraphs());
+            m_buffer->Invalidate(GetRange());
 
-    if ((flags & wxTEXT_ATTR_TABS) &&
-        !wxRichTextTabsEq(attr1.GetTabs(), attr2.GetTabs()))
-        return false;
+            UpdateAppearance(GetPosition());
 
-    return true;
-}
+            wxRichTextEvent cmdEvent(
+                wxEVT_COMMAND_RICHTEXT_STYLE_CHANGED,
+                m_ctrl ? m_ctrl->GetId() : -1);
+            cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
+            cmdEvent.SetRange(GetRange());
+            cmdEvent.SetPosition(GetRange().GetStart());
 
-/// Compare tabs
-bool wxRichTextTabsEq(const wxArrayInt& tabs1, const wxArrayInt& tabs2)
-{
-    if (tabs1.GetCount() != tabs2.GetCount())
-        return false;
+            m_buffer->SendEvent(cmdEvent);
 
-    size_t i;
-    for (i = 0; i < tabs1.GetCount(); i++)
-    {
-        if (tabs1[i] != tabs2[i])
-            return false;
+            break;
+        }
+    default:
+        break;
     }
+
     return true;
 }
 
-
-/// Apply one style to another
-bool wxRichTextApplyStyle(wxTextAttrEx& destStyle, const wxTextAttrEx& style)
+bool wxRichTextAction::Undo()
 {
-    // Whole font
-    if (style.GetFont().Ok() && ((style.GetFlags() & (wxTEXT_ATTR_FONT)) == (wxTEXT_ATTR_FONT)))
-        destStyle.SetFont(style.GetFont());
-    else if (style.GetFont().Ok())
-    {
-        wxFont font = destStyle.GetFont();
+    m_buffer->Modify(true);
 
-        if (style.GetFlags() & wxTEXT_ATTR_FONT_FACE)
+    switch (m_cmdId)
+    {
+    case wxRICHTEXT_INSERT:
         {
-            destStyle.SetFlags(destStyle.GetFlags() | wxTEXT_ATTR_FONT_FACE);
-            font.SetFaceName(style.GetFont().GetFaceName());
-        }
+            wxArrayInt optimizationLineCharPositions;
+            wxArrayInt optimizationLineYPositions;
 
-        if (style.GetFlags() & wxTEXT_ATTR_FONT_SIZE)
-        {
-            destStyle.SetFlags(destStyle.GetFlags() | wxTEXT_ATTR_FONT_SIZE);
-            font.SetPointSize(style.GetFont().GetPointSize());
-        }
+#if wxRICHTEXT_USE_OPTIMIZED_DRAWING
+            CalculateRefreshOptimizations(optimizationLineCharPositions, optimizationLineYPositions);
+#endif
 
-        if (style.GetFlags() & wxTEXT_ATTR_FONT_ITALIC)
-        {
-            destStyle.SetFlags(destStyle.GetFlags() | wxTEXT_ATTR_FONT_ITALIC);
-            font.SetStyle(style.GetFont().GetStyle());
-        }
+            m_buffer->DeleteRange(GetRange());
+            m_buffer->UpdateRanges();
+            m_buffer->Invalidate(wxRichTextRange(GetRange().GetStart(), GetRange().GetStart()));
 
-        if (style.GetFlags() & wxTEXT_ATTR_FONT_WEIGHT)
-        {
-            destStyle.SetFlags(destStyle.GetFlags() | wxTEXT_ATTR_FONT_WEIGHT);
-            font.SetWeight(style.GetFont().GetWeight());
-        }
+            long newCaretPosition = GetPosition() - 1;
 
-        if (style.GetFlags() & wxTEXT_ATTR_FONT_UNDERLINE)
-        {
-            destStyle.SetFlags(destStyle.GetFlags() | wxTEXT_ATTR_FONT_UNDERLINE);
-            font.SetUnderlined(style.GetFont().GetUnderlined());
-        }
+            UpdateAppearance(newCaretPosition, true, /* send update event */ & optimizationLineCharPositions, & optimizationLineYPositions, false /* undo */);
 
-        if (font != destStyle.GetFont())
-        {
-            int oldFlags = destStyle.GetFlags();
+            wxRichTextEvent cmdEvent(
+                wxEVT_COMMAND_RICHTEXT_CONTENT_DELETED,
+                m_ctrl ? m_ctrl->GetId() : -1);
+            cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
+            cmdEvent.SetRange(GetRange());
+            cmdEvent.SetPosition(GetRange().GetStart());
 
-            destStyle.SetFont(font);
+            m_buffer->SendEvent(cmdEvent);
 
-            destStyle.SetFlags(oldFlags);
+            break;
         }
-    }
-
-    if ( style.GetTextColour().Ok() && style.HasTextColour())
-        destStyle.SetTextColour(style.GetTextColour());
-
-    if ( style.GetBackgroundColour().Ok() && style.HasBackgroundColour())
-        destStyle.SetBackgroundColour(style.GetBackgroundColour());
+    case wxRICHTEXT_DELETE:
+        {
+            wxArrayInt optimizationLineCharPositions;
+            wxArrayInt optimizationLineYPositions;
 
-    if (style.HasAlignment())
-        destStyle.SetAlignment(style.GetAlignment());
+#if wxRICHTEXT_USE_OPTIMIZED_DRAWING
+            CalculateRefreshOptimizations(optimizationLineCharPositions, optimizationLineYPositions);
+#endif
 
-    if (style.HasTabs())
-        destStyle.SetTabs(style.GetTabs());
+            m_buffer->InsertFragment(GetRange().GetStart(), m_oldParagraphs);
+            m_buffer->UpdateRanges();
+            m_buffer->Invalidate(GetRange());
 
-    if (style.HasLeftIndent())
-        destStyle.SetLeftIndent(style.GetLeftIndent(), style.GetLeftSubIndent());
+            UpdateAppearance(GetPosition(), true, /* send update event */ & optimizationLineCharPositions, & optimizationLineYPositions, false /* undo */);
 
-    if (style.HasRightIndent())
-        destStyle.SetRightIndent(style.GetRightIndent());
+            wxRichTextEvent cmdEvent(
+                wxEVT_COMMAND_RICHTEXT_CONTENT_INSERTED,
+                m_ctrl ? m_ctrl->GetId() : -1);
+            cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
+            cmdEvent.SetRange(GetRange());
+            cmdEvent.SetPosition(GetRange().GetStart());
 
-    if (style.HasParagraphSpacingAfter())
-        destStyle.SetParagraphSpacingAfter(style.GetParagraphSpacingAfter());
+            m_buffer->SendEvent(cmdEvent);
 
-    if (style.HasParagraphSpacingBefore())
-        destStyle.SetParagraphSpacingBefore(style.GetParagraphSpacingBefore());
+            break;
+        }
+    case wxRICHTEXT_CHANGE_STYLE:
+        {
+            ApplyParagraphs(GetOldParagraphs());
+            m_buffer->Invalidate(GetRange());
 
-    if (style.HasLineSpacing())
-        destStyle.SetLineSpacing(style.GetLineSpacing());
+            UpdateAppearance(GetPosition());
 
-    if (style.HasCharacterStyleName())
-        destStyle.SetCharacterStyleName(style.GetCharacterStyleName());
+            wxRichTextEvent cmdEvent(
+                wxEVT_COMMAND_RICHTEXT_STYLE_CHANGED,
+                m_ctrl ? m_ctrl->GetId() : -1);
+            cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
+            cmdEvent.SetRange(GetRange());
+            cmdEvent.SetPosition(GetRange().GetStart());
 
-    if (style.HasParagraphStyleName())
-        destStyle.SetParagraphStyleName(style.GetParagraphStyleName());
+            m_buffer->SendEvent(cmdEvent);
 
-    if (style.HasBulletStyle())
-    {
-        destStyle.SetBulletStyle(style.GetBulletStyle());
-        destStyle.SetBulletSymbol(style.GetBulletSymbol());
-        destStyle.SetBulletFont(style.GetBulletFont());
+            break;
+        }
+    default:
+        break;
     }
 
-    if (style.HasBulletNumber())
-        destStyle.SetBulletNumber(style.GetBulletNumber());
-
-    return true;
-}
-
-bool wxRichTextApplyStyle(wxRichTextAttr& destStyle, const wxTextAttrEx& style)
-{
-    wxTextAttrEx destStyle2;
-    destStyle.CopyTo(destStyle2);
-    wxRichTextApplyStyle(destStyle2, style);
-    destStyle = destStyle2;
     return true;
 }
 
-bool wxRichTextApplyStyle(wxTextAttrEx& destStyle, const wxRichTextAttr& style, wxRichTextAttr* compareWith)
+/// Update the control appearance
+void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent, wxArrayInt* optimizationLineCharPositions, wxArrayInt* optimizationLineYPositions, bool isDoCmd)
 {
-    // Whole font. Avoiding setting individual attributes if possible, since
-    // it recreates the font each time.
-    if (((style.GetFlags() & (wxTEXT_ATTR_FONT)) == (wxTEXT_ATTR_FONT)) && !compareWith)
-    {
-        destStyle.SetFont(wxFont(style.GetFontSize(), destStyle.GetFont().Ok() ? destStyle.GetFont().GetFamily() : wxDEFAULT,
-            style.GetFontStyle(), style.GetFontWeight(), style.GetFontUnderlined(), style.GetFontFaceName()));
-    }
-    else if (style.GetFlags() & (wxTEXT_ATTR_FONT))
+    if (m_ctrl)
     {
-        wxFont font = destStyle.GetFont();
-
-        if (style.GetFlags() & wxTEXT_ATTR_FONT_FACE)
+        m_ctrl->SetCaretPosition(caretPosition);
+        if (!m_ctrl->IsFrozen())
         {
-            if (compareWith && compareWith->HasFaceName() && compareWith->GetFontFaceName() == style.GetFontFaceName())
-            {
-                // The same as currently displayed, so don't set
-            }
-            else
-            {
-                destStyle.SetFlags(destStyle.GetFlags() | wxTEXT_ATTR_FONT_FACE);
-                font.SetFaceName(style.GetFontFaceName());
-            }
-        }
+            m_ctrl->LayoutContent();
 
-        if (style.GetFlags() & wxTEXT_ATTR_FONT_SIZE)
-        {
-            if (compareWith && compareWith->HasSize() && compareWith->GetFontSize() == style.GetFontSize())
-            {
-                // The same as currently displayed, so don't set
-            }
-            else
+#if wxRICHTEXT_USE_OPTIMIZED_DRAWING
+            // Find refresh rectangle if we are in a position to optimise refresh
+            if ((m_cmdId == wxRICHTEXT_INSERT || m_cmdId == wxRICHTEXT_DELETE) && optimizationLineCharPositions)
             {
-                destStyle.SetFlags(destStyle.GetFlags() | wxTEXT_ATTR_FONT_SIZE);
-                font.SetPointSize(style.GetFontSize());
-            }
-        }
+                size_t i;
 
-        if (style.GetFlags() & wxTEXT_ATTR_FONT_ITALIC)
-        {
-            if (compareWith && compareWith->HasItalic() && compareWith->GetFontStyle() == style.GetFontStyle())
-            {
-                // The same as currently displayed, so don't set
-            }
-            else
-            {
-                destStyle.SetFlags(destStyle.GetFlags() | wxTEXT_ATTR_FONT_ITALIC);
-                font.SetStyle(style.GetFontStyle());
-            }
-        }
+                wxSize clientSize = m_ctrl->GetClientSize();
+                wxPoint firstVisiblePt = m_ctrl->GetFirstVisiblePoint();
 
-        if (style.GetFlags() & wxTEXT_ATTR_FONT_WEIGHT)
-        {
-            if (compareWith && compareWith->HasWeight() && compareWith->GetFontWeight() == style.GetFontWeight())
-            {
-                // The same as currently displayed, so don't set
-            }
-            else
-            {
-                destStyle.SetFlags(destStyle.GetFlags() | wxTEXT_ATTR_FONT_WEIGHT);
-                font.SetWeight(style.GetFontWeight());
-            }
-        }
+                // Start/end positions
+                int firstY = 0;
+                int lastY = firstVisiblePt.y + clientSize.y;
 
-        if (style.GetFlags() & wxTEXT_ATTR_FONT_UNDERLINE)
-        {
-            if (compareWith && compareWith->HasUnderlined() && compareWith->GetFontUnderlined() == style.GetFontUnderlined())
-            {
-                // The same as currently displayed, so don't set
-            }
-            else
-            {
-                destStyle.SetFlags(destStyle.GetFlags() | wxTEXT_ATTR_FONT_UNDERLINE);
-                font.SetUnderlined(style.GetFontUnderlined());
-            }
-        }
+                bool foundEnd = false;
 
-        if (font != destStyle.GetFont())
-        {
-            int oldFlags = destStyle.GetFlags();
+                // position offset - how many characters were inserted
+                int positionOffset = GetRange().GetLength();
 
-            destStyle.SetFont(font);
+                // Determine whether this is Do or Undo, and adjust positionOffset accordingly
+                if ((m_cmdId == wxRICHTEXT_DELETE && isDoCmd) || (m_cmdId == wxRICHTEXT_INSERT && !isDoCmd))
+                    positionOffset = - positionOffset;
 
-            destStyle.SetFlags(oldFlags);
-        }
-    }
+                // find the first line which is being drawn at the same position as it was
+                // before. Since we're talking about a simple insertion, we can assume
+                // that the rest of the window does not need to be redrawn.
 
-    if (style.GetTextColour().Ok() && style.HasTextColour())
-    {
-        if (!(compareWith && compareWith->HasTextColour() && compareWith->GetTextColour() == style.GetTextColour()))
-            destStyle.SetTextColour(style.GetTextColour());
-    }
+                wxRichTextParagraph* para = m_buffer->GetParagraphAtPosition(GetPosition());
+                if (para)
+                {
+                    // Find line containing GetPosition().
+                    wxRichTextLine* line = NULL;
+                    wxRichTextLineList::compatibility_iterator node2 = para->GetLines().GetFirst();
+                    while (node2)
+                    {
+                        wxRichTextLine* l = node2->GetData();
+                        wxRichTextRange range = l->GetAbsoluteRange();
+                        if (range.Contains(GetRange().GetStart()-1))
+                        {
+                            line = l;
+                            break;
+                        }
+                        node2 = node2->GetNext();
+                    }
 
-    if (style.GetBackgroundColour().Ok() && style.HasBackgroundColour())
-    {
-        if (!(compareWith && compareWith->HasBackgroundColour() && compareWith->GetBackgroundColour() == style.GetBackgroundColour()))
-            destStyle.SetBackgroundColour(style.GetBackgroundColour());
-    }
+                    if (line)
+                    {
+                        // Step back a couple of lines to where we can be sure of reformatting correctly
+                        wxRichTextLineList::compatibility_iterator lineNode = para->GetLines().Find(line);
+                        if (lineNode)
+                        {
+                            lineNode = lineNode->GetPrevious();
+                            if (lineNode)
+                            {
+                                line = (wxRichTextLine*) lineNode->GetData();
+                                lineNode = lineNode->GetPrevious();
+                                if (lineNode)
+                                    line = (wxRichTextLine*) lineNode->GetData();
+                            }
+                        }
 
-    if (style.HasAlignment())
-    {
-        if (!(compareWith && compareWith->HasAlignment() && compareWith->GetAlignment() == style.GetAlignment()))
-            destStyle.SetAlignment(style.GetAlignment());
-    }
+                        firstY = line->GetAbsolutePosition().y;
+                    }
+                }
 
-    if (style.HasTabs())
-    {
-        if (!(compareWith && compareWith->HasTabs() && wxRichTextTabsEq(compareWith->GetTabs(), style.GetTabs())))
-            destStyle.SetTabs(style.GetTabs());
-    }
+                wxRichTextObjectList::compatibility_iterator node = m_buffer->GetChildren().Find(para);
+                while (node)
+                {
+                    wxRichTextParagraph* child = (wxRichTextParagraph*) node->GetData();
+                    wxRichTextLineList::compatibility_iterator node2 = child->GetLines().GetFirst();
+                    while (node2)
+                    {
+                        wxRichTextLine* line = node2->GetData();
+                        wxPoint pt = line->GetAbsolutePosition();
+                        wxRichTextRange range = line->GetAbsoluteRange();
 
-    if (style.HasLeftIndent())
-    {
-        if (!(compareWith && compareWith->HasLeftIndent() && compareWith->GetLeftIndent() == style.GetLeftIndent()
-                          && compareWith->GetLeftSubIndent() == style.GetLeftSubIndent()))
-            destStyle.SetLeftIndent(style.GetLeftIndent(), style.GetLeftSubIndent());
-    }
+                        // we want to find the first line that is in the same position
+                        // as before. This will mean we're at the end of the changed text.
 
-    if (style.HasRightIndent())
-    {
-        if (!(compareWith && compareWith->HasRightIndent() && compareWith->GetRightIndent() == style.GetRightIndent()))
-            destStyle.SetRightIndent(style.GetRightIndent());
-    }
+                        if (pt.y > lastY) // going past the end of the window, no more info
+                        {
+                            node2 = wxRichTextLineList::compatibility_iterator();
+                            node = wxRichTextObjectList::compatibility_iterator();
+                        }
+                        // Detect last line in the buffer
+                        else if (!node2->GetNext() && para->GetRange().Contains(m_buffer->GetRange().GetEnd()))
+                        {
+                            // If deleting text, make sure we refresh below as well as above
+                            if (positionOffset >= 0)
+                            {
+                                foundEnd = true;
+                                lastY = pt.y + line->GetSize().y;
+                            }
 
-    if (style.HasParagraphSpacingAfter())
-    {
-        if (!(compareWith && compareWith->HasParagraphSpacingAfter() && compareWith->GetParagraphSpacingAfter() == style.GetParagraphSpacingAfter()))
-            destStyle.SetParagraphSpacingAfter(style.GetParagraphSpacingAfter());
-    }
+                            node2 = wxRichTextLineList::compatibility_iterator();
+                            node = wxRichTextObjectList::compatibility_iterator();
 
-    if (style.HasParagraphSpacingBefore())
-    {
-        if (!(compareWith && compareWith->HasParagraphSpacingBefore() && compareWith->GetParagraphSpacingBefore() == style.GetParagraphSpacingBefore()))
-            destStyle.SetParagraphSpacingBefore(style.GetParagraphSpacingBefore());
-    }
+                            break;
+                        }
+                        else
+                        {
+                            // search for this line being at the same position as before
+                            for (i = 0; i < optimizationLineCharPositions->GetCount(); i++)
+                            {
+                                if (((*optimizationLineCharPositions)[i] + positionOffset == range.GetStart()) &&
+                                    ((*optimizationLineYPositions)[i] == pt.y))
+                                {
+                                    // Stop, we're now the same as we were
+                                    foundEnd = true;
 
-    if (style.HasLineSpacing())
-    {
-        if (!(compareWith && compareWith->HasLineSpacing() && compareWith->GetLineSpacing() == style.GetLineSpacing()))
-            destStyle.SetLineSpacing(style.GetLineSpacing());
-    }
+                                    lastY = pt.y;
 
-    if (style.HasCharacterStyleName())
-    {
-        if (!(compareWith && compareWith->HasCharacterStyleName() && compareWith->GetCharacterStyleName() == style.GetCharacterStyleName()))
-            destStyle.SetCharacterStyleName(style.GetCharacterStyleName());
-    }
+                                    node2 = wxRichTextLineList::compatibility_iterator();
+                                    node = wxRichTextObjectList::compatibility_iterator();
 
-    if (style.HasParagraphStyleName())
-    {
-        if (!(compareWith && compareWith->HasParagraphStyleName() && compareWith->GetParagraphStyleName() == style.GetParagraphStyleName()))
-            destStyle.SetParagraphStyleName(style.GetParagraphStyleName());
-    }
+                                    break;
+                                }
+                            }
+                        }
 
-    if (style.HasBulletStyle())
-    {
-        if (!(compareWith && compareWith->HasBulletStyle() && compareWith->GetBulletStyle() == style.GetBulletStyle()))
-            destStyle.SetBulletStyle(style.GetBulletStyle());
-    }
+                        if (node2)
+                            node2 = node2->GetNext();
+                    }
 
-    if (style.HasBulletSymbol())
-    {
-        if (!(compareWith && compareWith->HasBulletSymbol() && compareWith->GetBulletSymbol() == style.GetBulletSymbol()))
-        {
-            destStyle.SetBulletSymbol(style.GetBulletSymbol());
-            destStyle.SetBulletFont(style.GetBulletFont());
-        }
-    }
+                    if (node)
+                        node = node->GetNext();
+                }
 
-    if (style.HasBulletNumber())
-    {
-        if (!(compareWith && compareWith->HasBulletNumber() && compareWith->GetBulletNumber() == style.GetBulletNumber()))
-            destStyle.SetBulletNumber(style.GetBulletNumber());
-    }
+                firstY = wxMax(firstVisiblePt.y, firstY);
+                if (!foundEnd)
+                    lastY = firstVisiblePt.y + clientSize.y;
 
-    return true;
-}
+                // Convert to device coordinates
+                wxRect rect(m_ctrl->GetPhysicalPoint(wxPoint(firstVisiblePt.x, firstY)), wxSize(clientSize.x, lastY - firstY));
+                m_ctrl->RefreshRect(rect);
+            }
+            else
+#endif
+                m_ctrl->Refresh(false);
 
-void wxSetFontPreservingStyles(wxTextAttr& attr, const wxFont& font)
-{
-    long flags = attr.GetFlags();
-    attr.SetFont(font);
-    attr.SetFlags(flags);
+#if wxRICHTEXT_USE_OWN_CARET
+            m_ctrl->PositionCaret();
+#endif
+            if (sendUpdateEvent)
+                wxTextCtrl::SendTextUpdatedEvent(m_ctrl);
+        }
+    }
 }
 
-/// Convert a decimal to Roman numerals
-wxString wxRichTextDecimalToRoman(long n)
+/// Replace the buffer paragraphs with the new ones.
+void wxRichTextAction::ApplyParagraphs(const wxRichTextParagraphLayoutBox& fragment)
 {
-    static wxArrayInt decimalNumbers;
-    static wxArrayString romanNumbers;
-
-    // Clean up arrays
-    if (n == -1)
+    wxRichTextObjectList::compatibility_iterator node = fragment.GetChildren().GetFirst();
+    while (node)
     {
-        decimalNumbers.Clear();
-        romanNumbers.Clear();
-        return wxEmptyString;
-    }
+        wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph);
+        wxASSERT (para != NULL);
 
-    if (decimalNumbers.GetCount() == 0)
-    {
-        #define wxRichTextAddDecRom(n, r) decimalNumbers.Add(n); romanNumbers.Add(r);
+        // We'll replace the existing paragraph by finding the paragraph at this position,
+        // delete its node data, and setting a copy as the new node data.
+        // TODO: make more efficient by simply swapping old and new paragraph objects.
 
-        wxRichTextAddDecRom(1000, wxT("M"));
-        wxRichTextAddDecRom(900, wxT("CM"));
-        wxRichTextAddDecRom(500, wxT("D"));
-        wxRichTextAddDecRom(400, wxT("CD"));
-        wxRichTextAddDecRom(100, wxT("C"));
-        wxRichTextAddDecRom(90, wxT("XC"));
-        wxRichTextAddDecRom(50, wxT("L"));
-        wxRichTextAddDecRom(40, wxT("XL"));
-        wxRichTextAddDecRom(10, wxT("X"));
-        wxRichTextAddDecRom(9, wxT("IX"));
-        wxRichTextAddDecRom(5, wxT("V"));
-        wxRichTextAddDecRom(4, wxT("IV"));
-        wxRichTextAddDecRom(1, wxT("I"));
-    }
+        wxRichTextParagraph* existingPara = m_buffer->GetParagraphAtPosition(para->GetRange().GetStart());
+        if (existingPara)
+        {
+            wxRichTextObjectList::compatibility_iterator bufferParaNode = m_buffer->GetChildren().Find(existingPara);
+            if (bufferParaNode)
+            {
+                wxRichTextParagraph* newPara = new wxRichTextParagraph(*para);
+                newPara->SetParent(m_buffer);
 
-    int i = 0;
-    wxString roman;
+                bufferParaNode->SetData(newPara);
 
-    while (n > 0 && i < 13)
-    {
-        if (n >= decimalNumbers[i])
-        {
-            n -= decimalNumbers[i];
-            roman += romanNumbers[i];
-        }
-        else
-        {
-            i ++;
+                delete existingPara;
+            }
         }
+
+        node = node->GetNext();
     }
-    if (roman.IsEmpty())
-        roman = wxT("0");
-    return roman;
 }
 
 
 /*!
- * wxRichTextAttr stores attributes without a wxFont object, so is a much more
- * efficient way to query styles.
+ * wxRichTextRange
+ * This stores beginning and end positions for a range of data.
  */
 
-// ctors
-wxRichTextAttr::wxRichTextAttr(const wxColour& colText,
-               const wxColour& colBack,
-               wxTextAttrAlignment alignment): m_textAlignment(alignment), m_colText(colText), m_colBack(colBack)
-{
-    Init();
-
-    if (m_colText.Ok()) m_flags |= wxTEXT_ATTR_TEXT_COLOUR;
-    if (m_colBack.Ok()) m_flags |= wxTEXT_ATTR_BACKGROUND_COLOUR;
-    if (alignment != wxTEXT_ALIGNMENT_DEFAULT)
-        m_flags |= wxTEXT_ATTR_ALIGNMENT;
-}
-
-wxRichTextAttr::wxRichTextAttr(const wxTextAttrEx& attr)
-{
-    Init();
-
-    (*this) = attr;
-}
-
-// operations
-void wxRichTextAttr::Init()
-{
-    m_textAlignment = wxTEXT_ALIGNMENT_DEFAULT;
-    m_flags = 0;
-    m_leftIndent = 0;
-    m_leftSubIndent = 0;
-    m_rightIndent = 0;
-
-    m_fontSize = 12;
-    m_fontStyle = wxNORMAL;
-    m_fontWeight = wxNORMAL;
-    m_fontUnderlined = false;
-
-    m_paragraphSpacingAfter = 0;
-    m_paragraphSpacingBefore = 0;
-    m_lineSpacing = 0;
-    m_bulletStyle = wxTEXT_ATTR_BULLET_STYLE_NONE;
-    m_bulletNumber = 0;
-    m_bulletSymbol = wxT('*');
-}
-
-// operators
-void wxRichTextAttr::operator= (const wxRichTextAttr& attr)
-{
-    m_colText = attr.m_colText;
-    m_colBack = attr.m_colBack;
-    m_textAlignment = attr.m_textAlignment;
-    m_leftIndent = attr.m_leftIndent;
-    m_leftSubIndent = attr.m_leftSubIndent;
-    m_rightIndent = attr.m_rightIndent;
-    m_tabs = attr.m_tabs;
-    m_flags = attr.m_flags;
-
-    m_fontSize = attr.m_fontSize;
-    m_fontStyle = attr.m_fontStyle;
-    m_fontWeight = attr.m_fontWeight;
-    m_fontUnderlined = attr.m_fontUnderlined;
-    m_fontFaceName = attr.m_fontFaceName;
-
-    m_paragraphSpacingAfter = attr.m_paragraphSpacingAfter;
-    m_paragraphSpacingBefore = attr.m_paragraphSpacingBefore;
-    m_lineSpacing = attr.m_lineSpacing;
-    m_characterStyleName = attr.m_characterStyleName;
-    m_paragraphStyleName = attr.m_paragraphStyleName;
-    m_bulletStyle = attr.m_bulletStyle;
-    m_bulletNumber = attr.m_bulletNumber;
-    m_bulletSymbol = attr.m_bulletSymbol;
-    m_bulletFont = attr.m_bulletFont;
-}
-
-// operators
-void wxRichTextAttr::operator= (const wxTextAttrEx& attr)
-{
-    m_colText = attr.GetTextColour();
-    m_colBack = attr.GetBackgroundColour();
-    m_textAlignment = attr.GetAlignment();
-    m_leftIndent = attr.GetLeftIndent();
-    m_leftSubIndent = attr.GetLeftSubIndent();
-    m_rightIndent = attr.GetRightIndent();
-    m_tabs = attr.GetTabs();
-    m_flags = attr.GetFlags();
-
-    m_paragraphSpacingAfter = attr.GetParagraphSpacingAfter();
-    m_paragraphSpacingBefore = attr.GetParagraphSpacingBefore();
-    m_lineSpacing = attr.GetLineSpacing();
-    m_characterStyleName = attr.GetCharacterStyleName();
-    m_paragraphStyleName = attr.GetParagraphStyleName();
-    m_bulletStyle = attr.GetBulletStyle();
-    m_bulletNumber = attr.GetBulletNumber();
-    m_bulletSymbol = attr.GetBulletSymbol();
-    m_bulletFont = attr.GetBulletFont();
-
-    if (attr.GetFont().Ok())
-        GetFontAttributes(attr.GetFont());
-}
-
-// Making a wxTextAttrEx object.
-wxRichTextAttr::operator wxTextAttrEx () const
-{
-    wxTextAttrEx attr;
-    CopyTo(attr);
-    return attr;
-}
-
-// Equality test
-bool wxRichTextAttr::operator== (const wxRichTextAttr& attr) const
+/// Limit this range to be within 'range'
+bool wxRichTextRange::LimitTo(const wxRichTextRange& range)
 {
-    return  GetFlags() == attr.GetFlags() &&
-
-            GetTextColour() == attr.GetTextColour() &&
-            GetBackgroundColour() == attr.GetBackgroundColour() &&
-
-            GetAlignment() == attr.GetAlignment() &&
-            GetLeftIndent() == attr.GetLeftIndent() &&
-            GetLeftSubIndent() == attr.GetLeftSubIndent() &&
-            GetRightIndent() == attr.GetRightIndent() &&
-            wxRichTextTabsEq(GetTabs(), attr.GetTabs()) &&
-
-            GetParagraphSpacingAfter() == attr.GetParagraphSpacingAfter() &&
-            GetParagraphSpacingBefore() == attr.GetParagraphSpacingBefore() &&
-            GetLineSpacing() == attr.GetLineSpacing() &&
-            GetCharacterStyleName() == attr.GetCharacterStyleName() &&
-            GetParagraphStyleName() == attr.GetParagraphStyleName() &&
+    if (m_start < range.m_start)
+        m_start = range.m_start;
 
-            GetBulletStyle() == attr.GetBulletStyle() &&
-            GetBulletSymbol() == attr.GetBulletSymbol() &&
-            GetBulletNumber() == attr.GetBulletNumber() &&
-            GetBulletFont() == attr.GetBulletFont() &&
+    if (m_end > range.m_end)
+        m_end = range.m_end;
 
-            m_fontSize == attr.m_fontSize &&
-            m_fontStyle == attr.m_fontStyle &&
-            m_fontWeight == attr.m_fontWeight &&
-            m_fontUnderlined == attr.m_fontUnderlined &&
-            m_fontFaceName == attr.m_fontFaceName;
+    return true;
 }
 
-// Copy to a wxTextAttr
-void wxRichTextAttr::CopyTo(wxTextAttrEx& attr) const
-{
-    attr.SetTextColour(GetTextColour());
-    attr.SetBackgroundColour(GetBackgroundColour());
-    attr.SetAlignment(GetAlignment());
-    attr.SetTabs(GetTabs());
-    attr.SetLeftIndent(GetLeftIndent(), GetLeftSubIndent());
-    attr.SetRightIndent(GetRightIndent());
-    attr.SetFont(CreateFont());
+/*!
+ * wxRichTextImage implementation
+ * This object represents an image.
+ */
 
-    attr.SetParagraphSpacingAfter(m_paragraphSpacingAfter);
-    attr.SetParagraphSpacingBefore(m_paragraphSpacingBefore);
-    attr.SetLineSpacing(m_lineSpacing);
-    attr.SetBulletStyle(m_bulletStyle);
-    attr.SetBulletNumber(m_bulletNumber);
-    attr.SetBulletSymbol(m_bulletSymbol);
-    attr.SetBulletFont(m_bulletFont);
-    attr.SetCharacterStyleName(m_characterStyleName);
-    attr.SetParagraphStyleName(m_paragraphStyleName);
+IMPLEMENT_DYNAMIC_CLASS(wxRichTextImage, wxRichTextObject)
 
-    attr.SetFlags(GetFlags()); // Important: set after SetFont and others, since they set flags
+wxRichTextImage::wxRichTextImage(const wxImage& image, wxRichTextObject* parent, wxTextAttr* charStyle):
+    wxRichTextObject(parent)
+{
+    m_image = image;
+    if (charStyle)
+        SetAttributes(*charStyle);
 }
 
-// Create font from font attributes.
-wxFont wxRichTextAttr::CreateFont() const
+wxRichTextImage::wxRichTextImage(const wxRichTextImageBlock& imageBlock, wxRichTextObject* parent, wxTextAttr* charStyle):
+    wxRichTextObject(parent)
 {
-    wxFont font(m_fontSize, wxDEFAULT, m_fontStyle, m_fontWeight, m_fontUnderlined, m_fontFaceName);
-#ifdef __WXMAC__
-    font.SetNoAntiAliasing(true);
-#endif
-    return font;
+    m_imageBlock = imageBlock;
+    m_imageBlock.Load(m_image);
+    if (charStyle)
+        SetAttributes(*charStyle);
 }
 
-// Get attributes from font.
-bool wxRichTextAttr::GetFontAttributes(const wxFont& font)
+/// Load wxImage from the block
+bool wxRichTextImage::LoadFromBlock()
 {
-    if (!font.Ok())
-        return false;
-
-    m_fontSize = font.GetPointSize();
-    m_fontStyle = font.GetStyle();
-    m_fontWeight = font.GetWeight();
-    m_fontUnderlined = font.GetUnderlined();
-    m_fontFaceName = font.GetFaceName();
-
-    return true;
+    m_imageBlock.Load(m_image);
+    return m_imageBlock.Ok();
 }
 
-wxRichTextAttr wxRichTextAttr::Combine(const wxRichTextAttr& attr,
-                               const wxRichTextAttr& attrDef,
-                               const wxTextCtrlBase *text)
+/// Make block from the wxImage
+bool wxRichTextImage::MakeBlock()
 {
-    wxColour colFg = attr.GetTextColour();
-    if ( !colFg.Ok() )
-    {
-        colFg = attrDef.GetTextColour();
-
-        if ( text && !colFg.Ok() )
-            colFg = text->GetForegroundColour();
-    }
-
-    wxColour colBg = attr.GetBackgroundColour();
-    if ( !colBg.Ok() )
-    {
-        colBg = attrDef.GetBackgroundColour();
-
-        if ( text && !colBg.Ok() )
-            colBg = text->GetBackgroundColour();
-    }
+    wxBitmapType type = m_imageBlock.GetImageType();
+    if ( type == wxBITMAP_TYPE_ANY || type == wxBITMAP_TYPE_INVALID )
+        m_imageBlock.SetImageType(type = wxBITMAP_TYPE_PNG);
 
-    wxRichTextAttr newAttr(colFg, colBg);
+    m_imageBlock.MakeImageBlock(m_image, type);
+    return m_imageBlock.Ok();
+}
 
-    if (attr.HasWeight())
-        newAttr.SetFontWeight(attr.GetFontWeight());
 
-    if (attr.HasSize())
-        newAttr.SetFontSize(attr.GetFontSize());
+/// Draw the item
+bool wxRichTextImage::Draw(wxDC& dc, const wxRichTextRange& range, const wxRichTextRange& selectionRange, const wxRect& rect, int WXUNUSED(descent), int WXUNUSED(style))
+{
+    if (!m_image.Ok() && m_imageBlock.Ok())
+        LoadFromBlock();
 
-    if (attr.HasItalic())
-        newAttr.SetFontStyle(attr.GetFontStyle());
+    if (!m_image.Ok())
+        return false;
 
-    if (attr.HasUnderlined())
-        newAttr.SetFontUnderlined(attr.GetFontUnderlined());
+    if (m_image.Ok() && !m_bitmap.Ok())
+        m_bitmap = wxBitmap(m_image);
 
-    if (attr.HasFaceName())
-        newAttr.SetFontFaceName(attr.GetFontFaceName());
+    int y = rect.y + (rect.height - m_image.GetHeight());
 
-    if (attr.HasAlignment())
-        newAttr.SetAlignment(attr.GetAlignment());
-    else if (attrDef.HasAlignment())
-        newAttr.SetAlignment(attrDef.GetAlignment());
+    if (m_bitmap.Ok())
+        dc.DrawBitmap(m_bitmap, rect.x, y, true);
 
-    if (attr.HasTabs())
-        newAttr.SetTabs(attr.GetTabs());
-    else if (attrDef.HasTabs())
-        newAttr.SetTabs(attrDef.GetTabs());
+    if (selectionRange.Contains(range.GetStart()))
+    {
+        wxCheckSetBrush(dc, *wxBLACK_BRUSH);
+        wxCheckSetPen(dc, *wxBLACK_PEN);
+        dc.SetLogicalFunction(wxINVERT);
+        dc.DrawRectangle(rect);
+        dc.SetLogicalFunction(wxCOPY);
+    }
 
-    if (attr.HasLeftIndent())
-        newAttr.SetLeftIndent(attr.GetLeftIndent(), attr.GetLeftSubIndent());
-    else if (attrDef.HasLeftIndent())
-        newAttr.SetLeftIndent(attrDef.GetLeftIndent(), attr.GetLeftSubIndent());
+    return true;
+}
 
-    if (attr.HasRightIndent())
-        newAttr.SetRightIndent(attr.GetRightIndent());
-    else if (attrDef.HasRightIndent())
-        newAttr.SetRightIndent(attrDef.GetRightIndent());
+/// Lay the item out
+bool wxRichTextImage::Layout(wxDC& WXUNUSED(dc), const wxRect& rect, int WXUNUSED(style))
+{
+    if (!m_image.Ok())
+        LoadFromBlock();
 
-    // NEW ATTRIBUTES
+    if (m_image.Ok())
+    {
+        SetCachedSize(wxSize(m_image.GetWidth(), m_image.GetHeight()));
+        SetPosition(rect.GetPosition());
+    }
 
-    if (attr.HasParagraphSpacingAfter())
-        newAttr.SetParagraphSpacingAfter(attr.GetParagraphSpacingAfter());
+    return true;
+}
 
-    if (attr.HasParagraphSpacingBefore())
-        newAttr.SetParagraphSpacingBefore(attr.GetParagraphSpacingBefore());
+/// Get/set the object size for the given range. Returns false if the range
+/// is invalid for this object.
+bool wxRichTextImage::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& WXUNUSED(descent), wxDC& WXUNUSED(dc), int WXUNUSED(flags), wxPoint WXUNUSED(position), wxArrayInt* partialExtents) const
+{
+    if (!range.IsWithin(GetRange()))
+        return false;
 
-    if (attr.HasLineSpacing())
-        newAttr.SetLineSpacing(attr.GetLineSpacing());
+    if (!m_image.Ok())
+        ((wxRichTextImage*) this)->LoadFromBlock();
 
-    if (attr.HasCharacterStyleName())
-        newAttr.SetCharacterStyleName(attr.GetCharacterStyleName());
+    if (partialExtents)
+    {
+        if (m_image.Ok())
+            partialExtents->Add(m_image.GetWidth());
+        else
+            partialExtents->Add(0);
+    }
 
-    if (attr.HasParagraphStyleName())
-        newAttr.SetParagraphStyleName(attr.GetParagraphStyleName());
+    if (!m_image.Ok())
+        return false;
 
-    if (attr.HasBulletStyle())
-        newAttr.SetBulletStyle(attr.GetBulletStyle());
+    size.x = m_image.GetWidth();
+    size.y = m_image.GetHeight();
 
-    if (attr.HasBulletNumber())
-        newAttr.SetBulletNumber(attr.GetBulletNumber());
+    return true;
+}
 
-    if (attr.HasBulletSymbol())
-    {
-        newAttr.SetBulletSymbol(attr.GetBulletSymbol());
-        newAttr.SetBulletFont(attr.GetBulletFont());
-    }
+/// Copy
+void wxRichTextImage::Copy(const wxRichTextImage& obj)
+{
+    wxRichTextObject::Copy(obj);
 
-    return newAttr;
+    m_image = obj.m_image;
+    m_imageBlock = obj.m_imageBlock;
 }
 
 /*!
- * wxTextAttrEx is an extended version of wxTextAttr with more paragraph attributes.
+ * Utilities
+ *
  */
 
-wxTextAttrEx::wxTextAttrEx(const wxTextAttrEx& attr): wxTextAttr(attr)
+/// Compare two attribute objects
+bool wxTextAttrEq(const wxTextAttr& attr1, const wxTextAttr& attr2)
 {
-    m_paragraphSpacingAfter = attr.m_paragraphSpacingAfter;
-    m_paragraphSpacingBefore = attr.m_paragraphSpacingBefore;
-    m_lineSpacing = attr.m_lineSpacing;
-    m_paragraphStyleName = attr.m_paragraphStyleName;
-    m_characterStyleName = attr.m_characterStyleName;
-    m_bulletStyle = attr.m_bulletStyle;
-    m_bulletNumber = attr.m_bulletNumber;
-    m_bulletSymbol = attr.m_bulletSymbol;
-    m_bulletFont = attr.m_bulletFont;
+    return (attr1 == attr2);
 }
 
-// Initialise this object.
-void wxTextAttrEx::Init()
+// Partial equality test taking flags into account
+bool wxTextAttrEqPartial(const wxTextAttr& attr1, const wxTextAttr& attr2, int flags)
 {
-    m_paragraphSpacingAfter = 0;
-    m_paragraphSpacingBefore = 0;
-    m_lineSpacing = 0;
-    m_bulletStyle = wxTEXT_ATTR_BULLET_STYLE_NONE;
-    m_bulletNumber = 0;
-    m_bulletSymbol = 0;
-    m_bulletSymbol = wxT('*');
+    return attr1.EqPartial(attr2, flags);
 }
 
-// Assignment from a wxTextAttrEx object
-void wxTextAttrEx::operator= (const wxTextAttrEx& attr)
+/// Compare tabs
+bool wxRichTextTabsEq(const wxArrayInt& tabs1, const wxArrayInt& tabs2)
 {
-    wxTextAttr::operator= (attr);
+    if (tabs1.GetCount() != tabs2.GetCount())
+        return false;
 
-    m_paragraphSpacingAfter = attr.m_paragraphSpacingAfter;
-    m_paragraphSpacingBefore = attr.m_paragraphSpacingBefore;
-    m_lineSpacing = attr.m_lineSpacing;
-    m_characterStyleName = attr.m_characterStyleName;
-    m_paragraphStyleName = attr.m_paragraphStyleName;
-    m_bulletStyle = attr.m_bulletStyle;
-    m_bulletNumber = attr.m_bulletNumber;
-    m_bulletSymbol = attr.m_bulletSymbol;
-    m_bulletFont = attr.m_bulletFont;
+    size_t i;
+    for (i = 0; i < tabs1.GetCount(); i++)
+    {
+        if (tabs1[i] != tabs2[i])
+            return false;
+    }
+    return true;
 }
 
-// Assignment from a wxTextAttr object.
-void wxTextAttrEx::operator= (const wxTextAttr& attr)
+bool wxRichTextApplyStyle(wxTextAttr& destStyle, const wxTextAttr& style, wxTextAttr* compareWith)
 {
-    wxTextAttr::operator= (attr);
+    return destStyle.Apply(style, compareWith);
 }
 
-wxTextAttrEx wxTextAttrEx::CombineEx(const wxTextAttrEx& attr,
-                               const wxTextAttrEx& attrDef,
-                               const wxTextCtrlBase *text)
+// Remove attributes
+bool wxRichTextRemoveStyle(wxTextAttr& destStyle, const wxTextAttr& style)
 {
-    wxTextAttrEx newAttr;
+    return wxTextAttr::RemoveStyle(destStyle, style);
+}
 
-    // If attr specifies the complete font, just use that font, overriding all
-    // default font attributes.
-    if ((attr.GetFlags() & wxTEXT_ATTR_FONT) == wxTEXT_ATTR_FONT)
-        newAttr.SetFont(attr.GetFont());
-    else
-    {
-        // First find the basic, default font
-        long flags = 0;
+/// Combine two bitlists, specifying the bits of interest with separate flags.
+bool wxRichTextCombineBitlists(int& valueA, int valueB, int& flagsA, int flagsB)
+{
+    return wxTextAttr::CombineBitlists(valueA, valueB, flagsA, flagsB);
+}
 
-        wxFont font;
-        if (attrDef.HasFont())
-        {
-            flags = (attrDef.GetFlags() & wxTEXT_ATTR_FONT);
-            font = attrDef.GetFont();
-        }
-        else
-        {
-            if (text)
-                font = text->GetFont();
+/// Compare two bitlists
+bool wxRichTextBitlistsEqPartial(int valueA, int valueB, int flags)
+{
+    return wxTextAttr::BitlistsEqPartial(valueA, valueB, flags);
+}
 
-            // We leave flags at 0 because no font attributes have been specified yet
-        }
-        if (!font.Ok())
-            font = *wxNORMAL_FONT;
+/// Split into paragraph and character styles
+bool wxRichTextSplitParaCharStyles(const wxTextAttr& style, wxTextAttr& parStyle, wxTextAttr& charStyle)
+{
+    return wxTextAttr::SplitParaCharStyles(style, parStyle, charStyle);
+}
 
-        // Otherwise, if there are font attributes in attr, apply them
-        if (attr.GetFlags() & wxTEXT_ATTR_FONT)
-        {
-            if (attr.HasSize())
-            {
-                flags |= wxTEXT_ATTR_FONT_SIZE;
-                font.SetPointSize(attr.GetFont().GetPointSize());
-            }
-            if (attr.HasItalic())
-            {
-                flags |= wxTEXT_ATTR_FONT_ITALIC;;
-                font.SetStyle(attr.GetFont().GetStyle());
-            }
-            if (attr.HasWeight())
-            {
-                flags |= wxTEXT_ATTR_FONT_WEIGHT;
-                font.SetWeight(attr.GetFont().GetWeight());
-            }
-            if (attr.HasFaceName())
-            {
-                flags |= wxTEXT_ATTR_FONT_FACE;
-                font.SetFaceName(attr.GetFont().GetFaceName());
-            }
-            if (attr.HasUnderlined())
-            {
-                flags |= wxTEXT_ATTR_FONT_UNDERLINE;
-                font.SetUnderlined(attr.GetFont().GetUnderlined());
-            }
-            newAttr.SetFont(font);
-            newAttr.SetFlags(newAttr.GetFlags()|flags);
-        }
-    }
+/// Convert a decimal to Roman numerals
+wxString wxRichTextDecimalToRoman(long n)
+{
+    static wxArrayInt decimalNumbers;
+    static wxArrayString romanNumbers;
 
-    // TODO: should really check we are specifying these in the flags,
-    // before setting them, as per above; or we will set them willy-nilly.
-    // However, we should also check whether this is the intention
-    // as per wxTextAttr::Combine, i.e. always to have valid colours
-    // in the style.
-    wxColour colFg = attr.GetTextColour();
-    if ( !colFg.Ok() )
+    // Clean up arrays
+    if (n == -1)
     {
-        colFg = attrDef.GetTextColour();
-
-        if ( text && !colFg.Ok() )
-            colFg = text->GetForegroundColour();
+        decimalNumbers.Clear();
+        romanNumbers.Clear();
+        return wxEmptyString;
     }
 
-    wxColour colBg = attr.GetBackgroundColour();
-    if ( !colBg.Ok() )
+    if (decimalNumbers.GetCount() == 0)
     {
-        colBg = attrDef.GetBackgroundColour();
+        #define wxRichTextAddDecRom(n, r) decimalNumbers.Add(n); romanNumbers.Add(r);
 
-        if ( text && !colBg.Ok() )
-            colBg = text->GetBackgroundColour();
+        wxRichTextAddDecRom(1000, wxT("M"));
+        wxRichTextAddDecRom(900, wxT("CM"));
+        wxRichTextAddDecRom(500, wxT("D"));
+        wxRichTextAddDecRom(400, wxT("CD"));
+        wxRichTextAddDecRom(100, wxT("C"));
+        wxRichTextAddDecRom(90, wxT("XC"));
+        wxRichTextAddDecRom(50, wxT("L"));
+        wxRichTextAddDecRom(40, wxT("XL"));
+        wxRichTextAddDecRom(10, wxT("X"));
+        wxRichTextAddDecRom(9, wxT("IX"));
+        wxRichTextAddDecRom(5, wxT("V"));
+        wxRichTextAddDecRom(4, wxT("IV"));
+        wxRichTextAddDecRom(1, wxT("I"));
     }
 
-    newAttr.SetTextColour(colFg);
-    newAttr.SetBackgroundColour(colBg);
-
-    if (attr.HasAlignment())
-        newAttr.SetAlignment(attr.GetAlignment());
-    else if (attrDef.HasAlignment())
-        newAttr.SetAlignment(attrDef.GetAlignment());
-
-    if (attr.HasTabs())
-        newAttr.SetTabs(attr.GetTabs());
-    else if (attrDef.HasTabs())
-        newAttr.SetTabs(attrDef.GetTabs());
-
-    if (attr.HasLeftIndent())
-        newAttr.SetLeftIndent(attr.GetLeftIndent(), attr.GetLeftSubIndent());
-    else if (attrDef.HasLeftIndent())
-        newAttr.SetLeftIndent(attrDef.GetLeftIndent(), attr.GetLeftSubIndent());
-
-    if (attr.HasRightIndent())
-        newAttr.SetRightIndent(attr.GetRightIndent());
-    else if (attrDef.HasRightIndent())
-        newAttr.SetRightIndent(attrDef.GetRightIndent());
-
-    // NEW ATTRIBUTES
-
-    if (attr.HasParagraphSpacingAfter())
-        newAttr.SetParagraphSpacingAfter(attr.GetParagraphSpacingAfter());
-
-    if (attr.HasParagraphSpacingBefore())
-        newAttr.SetParagraphSpacingBefore(attr.GetParagraphSpacingBefore());
-
-    if (attr.HasLineSpacing())
-        newAttr.SetLineSpacing(attr.GetLineSpacing());
-
-    if (attr.HasCharacterStyleName())
-        newAttr.SetCharacterStyleName(attr.GetCharacterStyleName());
-
-    if (attr.HasParagraphStyleName())
-        newAttr.SetParagraphStyleName(attr.GetParagraphStyleName());
-
-    if (attr.HasBulletStyle())
-        newAttr.SetBulletStyle(attr.GetBulletStyle());
-
-    if (attr.HasBulletNumber())
-        newAttr.SetBulletNumber(attr.GetBulletNumber());
+    int i = 0;
+    wxString roman;
 
-    if (attr.HasBulletSymbol())
+    while (n > 0 && i < 13)
     {
-        newAttr.SetBulletSymbol(attr.GetBulletSymbol());
-        newAttr.SetBulletFont(attr.GetBulletFont());
+        if (n >= decimalNumbers[i])
+        {
+            n -= decimalNumbers[i];
+            roman += romanNumbers[i];
+        }
+        else
+        {
+            i ++;
+        }
     }
-
-    return newAttr;
+    if (roman.IsEmpty())
+        roman = wxT("0");
+    return roman;
 }
 
-
 /*!
  * wxRichTextFileHandler
  * Base class for file handlers
@@ -6283,7 +7320,7 @@ wxTextAttrEx wxTextAttrEx::CombineEx(const wxTextAttrEx& attr,
 
 IMPLEMENT_CLASS(wxRichTextFileHandler, wxObject)
 
-#if wxUSE_STREAMS
+#if wxUSE_FFILE && wxUSE_STREAMS
 bool wxRichTextFileHandler::LoadFile(wxRichTextBuffer *buffer, const wxString& filename)
 {
     wxFFileInputStream stream(filename);
@@ -6301,13 +7338,13 @@ bool wxRichTextFileHandler::SaveFile(wxRichTextBuffer *buffer, const wxString& f
 
     return false;
 }
-#endif // wxUSE_STREAMS
+#endif // wxUSE_FFILE && wxUSE_STREAMS
 
 /// Can we handle this filename (if using files)? By default, checks the extension.
 bool wxRichTextFileHandler::CanHandle(const wxString& filename) const
 {
     wxString path, file, ext;
-    wxSplitPath(filename, & path, & file, & ext);
+    wxFileName::SplitPath(filename, & path, & file, & ext);
 
     return (ext.Lower() == GetExtension());
 }
@@ -6344,12 +7381,12 @@ bool wxRichTextPlainTextHandler::DoLoadFile(wxRichTextBuffer *buffer, wxInputStr
         }
     }
 
+    buffer->ResetAndClearCommands();
     buffer->Clear();
     buffer->AddParagraphs(str);
     buffer->UpdateRanges();
 
     return true;
-
 }
 
 bool wxRichTextPlainTextHandler::DoSaveFile(wxRichTextBuffer *buffer, wxOutputStream& stream)
@@ -6358,6 +7395,10 @@ bool wxRichTextPlainTextHandler::DoSaveFile(wxRichTextBuffer *buffer, wxOutputSt
         return false;
 
     wxString text = buffer->GetText();
+
+    wxString newLine = wxRichTextLineBreakChar;
+    text.Replace(newLine, wxT("\n"));
+
     wxCharBuffer buf = text.ToAscii();
 
     stream.Write((const char*) buf, text.length());
@@ -6393,7 +7434,7 @@ void wxRichTextImageBlock::Init()
 {
     m_data = NULL;
     m_dataSize = 0;
-    m_imageType = -1;
+    m_imageType = wxBITMAP_TYPE_INVALID;
 }
 
 void wxRichTextImageBlock::Clear()
@@ -6401,7 +7442,7 @@ void wxRichTextImageBlock::Clear()
     delete[] m_data;
     m_data = NULL;
     m_dataSize = 0;
-    m_imageType = -1;
+    m_imageType = wxBITMAP_TYPE_INVALID;
 }
 
 
@@ -6411,24 +7452,23 @@ void wxRichTextImageBlock::Clear()
 // If it's not a JPEG we can make use of 'image', already scaled, so we don't have to
 // load the image a 2nd time.
 
-bool wxRichTextImageBlock::MakeImageBlock(const wxString& filename, int imageType, wxImage& image, bool convertToJPEG)
+bool wxRichTextImageBlock::MakeImageBlock(const wxString& filename, wxBitmapType imageType,
+                                          wxImage& image, bool convertToJPEG)
 {
     m_imageType = imageType;
 
     wxString filenameToRead(filename);
     bool removeFile = false;
 
-    if (imageType == -1)
+    if (imageType == wxBITMAP_TYPE_INVALID)
         return false; // Could not determine image type
 
     if ((imageType != wxBITMAP_TYPE_JPEG) && convertToJPEG)
     {
-        wxString tempFile;
-        bool success = wxGetTempFileName(_("image"), tempFile) ;
+        wxString tempFile =
+            wxFileName::CreateTempFileName(_("image"));
 
-        wxASSERT(success);
-
-        wxUnusedVar(success);
+        wxASSERT(!tempFile.IsEmpty());
 
         image.SaveFile(tempFile, wxBITMAP_TYPE_JPEG);
         filenameToRead = tempFile;
@@ -6455,19 +7495,16 @@ bool wxRichTextImageBlock::MakeImageBlock(const wxString& filename, int imageTyp
 
 // Make an image block from the wxImage in the given
 // format.
-bool wxRichTextImageBlock::MakeImageBlock(wxImage& image, int imageType, int quality)
+bool wxRichTextImageBlock::MakeImageBlock(wxImage& image, wxBitmapType imageType, int quality)
 {
     m_imageType = imageType;
     image.SetOption(wxT("quality"), quality);
 
-    if (imageType == -1)
+    if (imageType == wxBITMAP_TYPE_INVALID)
         return false; // Could not determine image type
 
-    wxString tempFile;
-    bool success = wxGetTempFileName(_("image"), tempFile) ;
-
-    wxASSERT(success);
-    wxUnusedVar(success);
+    wxString tempFile = wxFileName::CreateTempFileName(_("image")) ;
+    wxASSERT(!tempFile.IsEmpty());
 
     if (!image.SaveFile(tempFile, m_imageType))
     {
@@ -6534,9 +7571,8 @@ bool wxRichTextImageBlock::Load(wxImage& image)
     wxMemoryInputStream mstream(m_data, m_dataSize);
     bool success = image.LoadFile(mstream, GetImageType());
 #else
-    wxString tempFile;
-    bool success = wxGetTempFileName(_("image"), tempFile) ;
-    wxASSERT(success);
+    wxString tempFile = wxFileName::CreateTempFileName(_("image"));
+    wxASSERT(!tempFile.IsEmpty());
 
     if (!WriteBlock(tempFile, m_data, m_dataSize))
     {
@@ -6552,34 +7588,54 @@ bool wxRichTextImageBlock::Load(wxImage& image)
 // Write data in hex to a stream
 bool wxRichTextImageBlock::WriteHex(wxOutputStream& stream)
 {
-    wxString hex;
-    int i;
-    for (i = 0; i < (int) m_dataSize; i++)
+    const int bufSize = 512;
+    char buf[bufSize+1];
+
+    int left = m_dataSize;
+    int n, i, j;
+    j = 0;
+    while (left > 0)
     {
-        hex = wxDecToHex(m_data[i]);
-        wxCharBuffer buf = hex.ToAscii();
+        if (left*2 > bufSize)
+        {
+            n = bufSize; left -= (bufSize/2);
+        }
+        else
+        {
+            n = left*2; left = 0;
+        }
 
-        stream.Write((const char*) buf, hex.length());
-    }
+        char* b = buf;
+        for (i = 0; i < (n/2); i++)
+        {
+            wxDecToHex(m_data[j], b, b+1);
+            b += 2; j ++;
+        }
 
+        buf[n] = 0;
+        stream.Write((const char*) buf, n);
+    }
     return true;
 }
 
 // Read data in hex from a stream
-bool wxRichTextImageBlock::ReadHex(wxInputStream& stream, int length, int imageType)
+bool wxRichTextImageBlock::ReadHex(wxInputStream& stream, int length, wxBitmapType imageType)
 {
     int dataSize = length/2;
 
     if (m_data)
         delete[] m_data;
 
-    wxString str(wxT("  "));
+    // create a null terminated temporary string:
+    char str[3];
+    str[2] = '\0';
+
     m_data = new unsigned char[dataSize];
     int i;
     for (i = 0; i < dataSize; i ++)
     {
-        str[0] = stream.GetC();
-        str[1] = stream.GetC();
+        str[0] = (char)stream.GetC();
+        str[1] = (char)stream.GetC();
 
         m_data[i] = (unsigned char)wxHexToDec(str);
     }
@@ -6629,6 +7685,16 @@ bool wxRichTextImageBlock::WriteBlock(const wxString& filename, unsigned char* b
     return WriteBlock(outStream, block, size);
 }
 
+// Gets the extension for the block's type
+wxString wxRichTextImageBlock::GetExtension() const
+{
+    wxImageHandler* handler = wxImage::FindHandler(GetImageType());
+    if (handler)
+        return handler->GetExtension();
+    else
+        return wxEmptyString;
+}
+
 #if wxUSE_DATAOBJ
 
 /*!
@@ -6747,6 +7813,85 @@ bool wxRichTextBufferDataObject::SetData(size_t WXUNUSED(len), const void *buf)
 #endif
     // wxUSE_DATAOBJ
 
+
+/*
+ * wxRichTextFontTable
+ * Manages quick access to a pool of fonts for rendering rich text
+ */
+
+WX_DECLARE_STRING_HASH_MAP_WITH_DECL(wxFont, wxRichTextFontTableHashMap, class WXDLLIMPEXP_RICHTEXT);
+
+class wxRichTextFontTableData: public wxObjectRefData
+{
+public:
+    wxRichTextFontTableData() {}
+
+    wxFont FindFont(const wxTextAttr& fontSpec);
+
+    wxRichTextFontTableHashMap  m_hashMap;
+};
+
+wxFont wxRichTextFontTableData::FindFont(const wxTextAttr& fontSpec)
+{
+    wxString facename(fontSpec.GetFontFaceName());
+    wxString spec(wxString::Format(wxT("%d-%d-%d-%d-%s-%d"), fontSpec.GetFontSize(), fontSpec.GetFontStyle(), fontSpec.GetFontWeight(), (int) fontSpec.GetFontUnderlined(), facename.c_str(), (int) fontSpec.GetFontEncoding()));
+    wxRichTextFontTableHashMap::iterator entry = m_hashMap.find(spec);
+
+    if ( entry == m_hashMap.end() )
+    {
+        wxFont font(fontSpec.GetFontSize(), wxDEFAULT, fontSpec.GetFontStyle(), fontSpec.GetFontWeight(), fontSpec.GetFontUnderlined(), facename.c_str());
+        m_hashMap[spec] = font;
+        return font;
+    }
+    else
+    {
+        return entry->second;
+    }
+}
+
+IMPLEMENT_DYNAMIC_CLASS(wxRichTextFontTable, wxObject)
+
+wxRichTextFontTable::wxRichTextFontTable()
+{
+    m_refData = new wxRichTextFontTableData;
+}
+
+wxRichTextFontTable::wxRichTextFontTable(const wxRichTextFontTable& table)
+    : wxObject()
+{
+    (*this) = table;
+}
+
+wxRichTextFontTable::~wxRichTextFontTable()
+{
+    UnRef();
+}
+
+bool wxRichTextFontTable::operator == (const wxRichTextFontTable& table) const
+{
+    return (m_refData == table.m_refData);
+}
+
+void wxRichTextFontTable::operator= (const wxRichTextFontTable& table)
+{
+    Ref(table);
+}
+
+wxFont wxRichTextFontTable::FindFont(const wxTextAttr& fontSpec)
+{
+    wxRichTextFontTableData* data = (wxRichTextFontTableData*) m_refData;
+    if (data)
+        return data->FindFont(fontSpec);
+    else
+        return wxFont();
+}
+
+void wxRichTextFontTable::Clear()
+{
+    wxRichTextFontTableData* data = (wxRichTextFontTableData*) m_refData;
+    if (data)
+        data->m_hashMap.clear();
+}
+
 #endif
     // wxUSE_RICHTEXT
-