X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/caad01090aa9537446fadd3c333edb9a5ebeb310..7b0ccb8a603b4f97740acc65d9429bb58f7ba1bd:/src/richtext/richtextbuffer.cpp?ds=sidebyside

diff --git a/src/richtext/richtextbuffer.cpp b/src/richtext/richtextbuffer.cpp
index 3f69ec35f6..7d61b5e8a6 100644
--- a/src/richtext/richtextbuffer.cpp
+++ b/src/richtext/richtextbuffer.cpp
@@ -28,6 +28,7 @@
     #include "wx/module.h"
 #endif
 
+#include "wx/settings.h"
 #include "wx/filename.h"
 #include "wx/clipbrd.h"
 #include "wx/wfstream.h"
@@ -49,6 +50,49 @@ WX_DEFINE_LIST(wxRichTextLineList)
 
 const wxChar wxRichTextLineBreakChar = (wxChar) 29;
 
+// Helpers for efficiency
+
+inline void wxCheckSetFont(wxDC& dc, const wxFont& font)
+{
+    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.GetFaceName() == font.GetFaceName())
+            return;
+    }
+    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.
@@ -265,7 +309,8 @@ 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
@@ -594,7 +639,7 @@ 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)
@@ -603,10 +648,13 @@ 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;
@@ -912,7 +960,17 @@ wxRichTextRange wxRichTextParagraphLayoutBox::AddParagraph(const wxString& text,
     wxTextAttr defaultCharStyle;
     wxTextAttr defaultParaStyle;
 
-    wxRichTextSplitParaCharStyles(GetDefaultStyle(), defaultParaStyle, defaultCharStyle);
+    // 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;
 
@@ -935,7 +993,17 @@ wxRichTextRange wxRichTextParagraphLayoutBox::AddParagraphs(const wxString& text
 
     wxTextAttr defaultCharStyle;
     wxTextAttr defaultParaStyle;
-    wxRichTextSplitParaCharStyles(GetDefaultStyle(), defaultParaStyle, defaultCharStyle);
+
+    // 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;
@@ -960,15 +1028,18 @@ 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);
+            if (i != (len-1))
+            {
+                wxRichTextPlainText* plainText = (wxRichTextPlainText*) para->GetChildren().GetFirst()->GetData();
+                plainText->SetText(line);
 
-            para = new wxRichTextParagraph(wxEmptyString, this, pStyle, cStyle);
+                para = new wxRichTextParagraph(wxEmptyString, this, pStyle, cStyle);
 
-            AppendChild(para);
+                AppendChild(para);
 
-            lastPara = para;
-            line = wxEmptyString;
+                lastPara = para;
+                line = wxEmptyString;
+            }
         }
         else
             line += ch;
@@ -998,7 +1069,17 @@ wxRichTextRange wxRichTextParagraphLayoutBox::AddImage(const wxImage& image, wxT
 
     wxTextAttr defaultCharStyle;
     wxTextAttr defaultParaStyle;
-    wxRichTextSplitParaCharStyles(GetDefaultStyle(), defaultParaStyle, defaultCharStyle);
+
+    // 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;
@@ -1026,6 +1107,8 @@ 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
@@ -1046,11 +1129,6 @@ bool wxRichTextParagraphLayoutBox::InsertFragment(long position, wxRichTextParag
             wxRichTextParagraph* firstPara = wxDynamicCast(firstParaNode->GetData(), wxRichTextParagraph);
             wxASSERT (firstPara != NULL);
 
-            // Apply the new paragraph attributes to the existing paragraph
-            wxTextAttr attr(para->GetAttributes());
-            wxRichTextApplyStyle(attr, firstPara->GetAttributes());
-            para->SetAttributes(attr);
-
             wxRichTextObjectList::compatibility_iterator objectNode = firstPara->GetChildren().GetFirst();
             while (objectNode)
             {
@@ -1098,7 +1176,19 @@ 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();
@@ -1118,50 +1208,57 @@ 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);
+                    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;
         }
     }
@@ -1345,6 +1442,7 @@ bool wxRichTextParagraphLayoutBox::DeleteRange(const wxRichTextRange& range)
 {
     wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
 
+    wxRichTextParagraph* firstPara = NULL;
     while (node)
     {
         wxRichTextParagraph* obj = wxDynamicCast(node->GetData(), wxRichTextParagraph);
@@ -1359,58 +1457,82 @@ 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;
             }
         }
 
@@ -1686,7 +1808,7 @@ 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
@@ -2372,6 +2494,15 @@ 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);
@@ -2427,6 +2558,29 @@ 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)
     {
@@ -2985,7 +3139,7 @@ bool wxRichTextParagraph::Draw(wxDC& dc, const wxRichTextRange& range, const wxR
                 else
                     font = (*wxNORMAL_FONT);
 
-                dc.SetFont(font);
+                wxCheckSetFont(dc, font);
 
                 lineHeight = dc.GetCharHeight();
                 linePos = GetPosition();
@@ -3084,7 +3238,7 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
     if (attr.GetLineSpacing() != 10 && GetBuffer())
     {
         wxFont font(GetBuffer()->GetFontTable().FindFont(attr));
-        dc.SetFont(font);
+        wxCheckSetFont(dc, font);
         lineSpacing = (ConvertTenthsMMToPixels(dc, dc.GetCharHeight()) * attr.GetLineSpacing())/10;
     }
 
@@ -3119,13 +3273,24 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
 
     int lineCount = 0;
 
+    wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
+    while (node)
+    {
+        wxRichTextObject* child = node->GetData();
+
+        child->SetCachedSize(wxDefaultSize);
+        child->Layout(dc, rect, style);
+
+        node = node->GetNext();
+    }
+
     // 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();
@@ -3137,9 +3302,6 @@ 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.
 
-        // TODO: can't this be called only once per child?
-        child->Layout(dc, rect, style);
-
         // Available width depends on whether we're on the first or subsequent lines
         int availableSpaceForText = (lineCount == 0 ? availableTextSpaceFirstLine : availableTextSpaceSubsequentLines);
 
@@ -3264,7 +3426,7 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
         if (lineHeight == 0 && GetBuffer())
         {
             wxFont font(GetBuffer()->GetFontTable().FindFont(attr));
-            dc.SetFont(font);
+            wxCheckSetFont(dc, font);
             lineHeight = dc.GetCharHeight();
         }
         if (maxDescent == 0)
@@ -3604,7 +3766,7 @@ 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)
             {
@@ -3823,18 +3985,53 @@ bool wxRichTextParagraph::FindWrapPosition(const wxRichTextRange& range, wxDC& d
 {
     // 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++)
+
+    // Binary chop for speed
+    long minPos = range.GetStart();
+    long maxPos = range.GetEnd();
+    while (true)
     {
-        int descent = 0;
-        GetRangeSize(wxRichTextRange(range.GetStart(), i), sz, descent, dc, wxRICHTEXT_UNFORMATTED);
+        if (minPos == maxPos)
+        {
+            int descent = 0;
+            GetRangeSize(wxRichTextRange(range.GetStart(), minPos), sz, descent, dc, wxRICHTEXT_UNFORMATTED);
 
-        if (sz.x > availableSpace)
+            if (sz.x > availableSpace)
+                breakPosition = minPos - 1;
+            break;
+        }
+        else if ((maxPos - minPos) == 1)
         {
-            breakPosition = i-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;
+            }
+        }
     }
 
     // Now we know the last position on the line.
@@ -4114,22 +4311,50 @@ bool wxRichTextPlainText::Draw(wxDC& dc, const wxRichTextRange& range, const wxR
     wxString str = m_text;
     wxString toRemove = wxRichTextLineBreakChar;
     str.Replace(toRemove, wxT(" "));
+    if (textAttr.HasTextEffects() && (textAttr.GetTextEffects() & wxTEXT_ATTR_EFFECT_CAPITALS))
+        str.MakeUpper();
 
     long len = range.GetLength();
     wxString stringChunk = str.Mid(range.GetStart() - offset, (size_t) len);
-    if (textAttr.HasTextEffects() && (textAttr.GetTextEffects() & wxTEXT_ATTR_EFFECT_CAPITALS))
-        stringChunk.MakeUpper();
-
-    int charHeight = dc.GetCharHeight();
-
-    int x = rect.x;
-    int y = rect.y + (rect.height - charHeight - (descent - m_descent));
 
     // Test for the optimized situations where all is selected, or none
     // is selected.
 
-    wxFont font(GetBuffer()->GetFontTable().FindFont(textAttr));
-    dc.SetFont(font);
+    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())
@@ -4147,7 +4372,7 @@ 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())
@@ -4258,10 +4483,13 @@ bool wxRichTextPlainText::DrawTabbedString(wxDC& dc, const wxTextAttr& attr, con
 
     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
     {
@@ -4269,11 +4497,11 @@ bool wxRichTextPlainText::DrawTabbedString(wxDC& dc, const wxTextAttr& attr, con
 
         if (attr.HasFlag(wxTEXT_ATTR_BACKGROUND_COLOUR) && attr.GetBackgroundColour().IsOk())
         {
-            dc.SetBackgroundMode(wxSOLID);
+            dc.SetBackgroundMode(wxBRUSHSTYLE_SOLID);
             dc.SetTextBackground(attr.GetBackgroundColour());
         }
         else
-            dc.SetBackgroundMode(wxTRANSPARENT);
+            dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
     }
 
     while (hasTabs)
@@ -4312,9 +4540,9 @@ bool wxRichTextPlainText::DrawTabbedString(wxDC& dc, const wxTextAttr& attr, con
                 if (attr.HasTextEffects() && (attr.GetTextEffects() & wxTEXT_ATTR_EFFECT_STRIKETHROUGH))
                 {
                     wxPen oldPen = dc.GetPen();
-                    dc.SetPen(wxPen(attr.GetTextColour(), 1));
+                    wxCheckSetPen(dc, wxPen(attr.GetTextColour(), 1));
                     dc.DrawLine(x, (int) (y+(h/2)+0.5), x+w, (int) (y+(h/2)+0.5));
-                    dc.SetPen(oldPen);
+                    wxCheckSetPen(dc, oldPen);
                 }
 
                 x = nextTabPos;
@@ -4336,9 +4564,9 @@ bool wxRichTextPlainText::DrawTabbedString(wxDC& dc, const wxTextAttr& attr, con
         if (attr.HasTextEffects() && (attr.GetTextEffects() & wxTEXT_ATTR_EFFECT_STRIKETHROUGH))
         {
             wxPen oldPen = dc.GetPen();
-            dc.SetPen(wxPen(attr.GetTextColour(), 1));
+            wxCheckSetPen(dc, wxPen(attr.GetTextColour(), 1));
             dc.DrawLine(x, (int) (y+(h/2)+0.5), x+w, (int) (y+(h/2)+0.5));
-            dc.SetPen(oldPen);
+            wxCheckSetPen(dc, oldPen);
         }
 
         x += w;
@@ -4350,7 +4578,9 @@ bool wxRichTextPlainText::DrawTabbedString(wxDC& dc, const wxTextAttr& attr, con
 /// Lay the item out
 bool wxRichTextPlainText::Layout(wxDC& dc, const wxRect& WXUNUSED(rect), int WXUNUSED(style))
 {
-    GetRangeSize(GetRange(), m_size, m_descent, dc, 0, wxPoint(0, 0));
+    // 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;
 }
@@ -4379,8 +4609,24 @@ bool wxRichTextPlainText::GetRangeSize(const wxRichTextRange& range, wxSize& siz
     // 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
 
+    bool bScript(false);
     wxFont font(GetBuffer()->GetFontTable().FindFont(textAttr));
-    dc.SetFont(font);
+    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);
+        }
+    }
 
     int startPos = range.GetStart() - GetRange().GetStart();
     long len = range.GetLength();
@@ -4448,8 +4694,13 @@ bool wxRichTextPlainText::GetRangeSize(const wxRichTextRange& range, wxSize& siz
             }
         }
     }
+
     dc.GetTextExtent(stringChunk, & w, & h, & descent);
     width += w;
+
+    if ( bScript )
+        dc.SetFont(font);
+
     size = wxSize(width, dc.GetCharHeight());
 
     return true;
@@ -4535,6 +4786,7 @@ bool wxRichTextPlainText::Merge(wxRichTextObject* object)
     if (textObject)
     {
         m_text += textObject->GetText();
+        wxRichTextApplyStyle(m_attributes, textObject->GetAttributes());
         return true;
     }
     else
@@ -4667,21 +4919,14 @@ bool wxRichTextBuffer::InsertParagraphsWithUndo(long pos, const wxRichTextParagr
 
     action->GetNewParagraphs() = paragraphs;
 
-    if (p)
-    {
-        wxRichTextObjectList::compatibility_iterator node = m_children.GetLast();
-        while (node)
-        {
-            wxRichTextParagraph* obj = (wxRichTextParagraph*) node->GetData();
-            obj->SetAttributes(*p);
-            node = node->GetPrevious();
-        }
-    }
-
     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);
 
@@ -4746,13 +4991,47 @@ bool wxRichTextBuffer::InsertNewlineWithUndo(long pos, wxRichTextCtrl* ctrl, int
     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 ++;
+        if (newPara->GetAttributes().HasBulletNumber())
+            newPara->GetAttributes().SetBulletNumber(newPara->GetAttributes().GetBulletNumber()+1);
+    }
+
+    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);
 
@@ -4871,22 +5150,18 @@ bool wxRichTextBuffer::DeleteRangeWithUndo(const wxRichTextRange& range, wxRichT
     // 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);
             }
         }
     }
@@ -4904,7 +5179,7 @@ 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);
     }
@@ -4924,7 +5199,7 @@ bool wxRichTextBuffer::EndBatchUndo()
 
     if (m_batchedCommandDepth == 0)
     {
-        GetCommandProcessor()->Submit(m_batchedCommand);
+        GetCommandProcessor()->Store(m_batchedCommand);
         m_batchedCommand = NULL;
     }
 
@@ -4935,7 +5210,15 @@ 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());
@@ -5501,6 +5784,8 @@ bool wxRichTextBuffer::PasteFromClipboard(long position)
                 if (richTextBuffer)
                 {
                     InsertParagraphsWithUndo(position+1, *richTextBuffer, GetRichTextCtrl(), wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE);
+                    if (GetRichTextCtrl())
+                        GetRichTextCtrl()->ShowPosition(position + richTextBuffer->GetRange().GetEnd());
                     delete richTextBuffer;
                 }
             }
@@ -5509,9 +5794,23 @@ 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());
 
-                InsertTextWithUndo(position+1, text, GetRichTextCtrl());
+                if (GetRichTextCtrl())
+                    GetRichTextCtrl()->ShowPosition(position + text2.Length());
 
                 success = true;
             }
@@ -5673,13 +5972,13 @@ bool wxRichTextStdRenderer::DrawStandardBullet(wxRichTextParagraph* paragraph, w
 {
     if (bulletAttr.GetTextColour().Ok())
     {
-        dc.SetPen(wxPen(bulletAttr.GetTextColour()));
-        dc.SetBrush(wxBrush(bulletAttr.GetTextColour()));
+        wxCheckSetPen(dc, wxPen(bulletAttr.GetTextColour()));
+        wxCheckSetBrush(dc, wxBrush(bulletAttr.GetTextColour()));
     }
     else
     {
-        dc.SetPen(*wxBLACK_PEN);
-        dc.SetBrush(*wxBLACK_BRUSH);
+        wxCheckSetPen(dc, *wxBLACK_PEN);
+        wxCheckSetBrush(dc, *wxBLACK_BRUSH);
     }
 
     wxFont font;
@@ -5690,7 +5989,7 @@ bool wxRichTextStdRenderer::DrawStandardBullet(wxRichTextParagraph* paragraph, w
     else
         font = (*wxNORMAL_FONT);
 
-    dc.SetFont(font);
+    wxCheckSetFont(dc, font);
 
     int charHeight = dc.GetCharHeight();
 
@@ -5764,12 +6063,12 @@ bool wxRichTextStdRenderer::DrawTextBullet(wxRichTextParagraph* paragraph, wxDC&
         else
             font = (*wxNORMAL_FONT);
 
-        dc.SetFont(font);
+        wxCheckSetFont(dc, font);
 
         if (attr.GetTextColour().Ok())
             dc.SetTextForeground(attr.GetTextColour());
 
-        dc.SetBackgroundMode(wxTRANSPARENT);
+        dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
 
         int charHeight = dc.GetCharHeight();
         wxCoord tw, th;
@@ -5957,7 +6256,7 @@ bool wxRichTextAction::Do()
                 wxPoint firstVisiblePt = m_ctrl->GetFirstVisiblePoint();
                 int lastY = firstVisiblePt.y + clientSize.y;
 
-                wxRichTextParagraph* para = m_buffer->GetParagraphAtPosition(GetPosition());
+                wxRichTextParagraph* para = m_buffer->GetParagraphAtPosition(GetRange().GetStart());
                 wxRichTextObjectList::compatibility_iterator node = m_buffer->GetChildren().Find(para);
                 while (node)
                 {
@@ -5990,9 +6289,9 @@ bool wxRichTextAction::Do()
             }
 #endif
 
-            m_buffer->InsertFragment(GetPosition(), m_newParagraphs);
+            m_buffer->InsertFragment(GetRange().GetStart(), m_newParagraphs);
             m_buffer->UpdateRanges();
-            m_buffer->Invalidate(GetRange());
+            m_buffer->Invalidate(wxRichTextRange(GetRange().GetStart()-1, GetRange().GetEnd()));
 
             long newCaretPosition = GetPosition() + m_newParagraphs.GetRange().GetLength();
 
@@ -6034,7 +6333,11 @@ bool wxRichTextAction::Do()
             m_buffer->UpdateRanges();
             m_buffer->Invalidate(wxRichTextRange(GetRange().GetStart(), GetRange().GetStart()));
 
-            UpdateAppearance(GetRange().GetStart()-1, true /* send update event */);
+            long caretPos = GetRange().GetStart()-1;
+            if (caretPos >= m_buffer->GetRange().GetEnd())
+                caretPos --;
+
+            UpdateAppearance(caretPos, true /* send update event */);
 
             wxRichTextEvent cmdEvent(
                 wxEVT_COMMAND_RICHTEXT_CONTENT_DELETED,
@@ -6364,8 +6667,8 @@ bool wxRichTextImage::Draw(wxDC& dc, const wxRichTextRange& range, const wxRichT
 
     if (selectionRange.Contains(range.GetStart()))
     {
-        dc.SetBrush(*wxBLACK_BRUSH);
-        dc.SetPen(*wxBLACK_PEN);
+        wxCheckSetBrush(dc, *wxBLACK_BRUSH);
+        wxCheckSetPen(dc, *wxBLACK_PEN);
         dc.SetLogicalFunction(wxINVERT);
         dc.DrawRectangle(rect);
         dc.SetLogicalFunction(wxCOPY);
@@ -7036,7 +7339,7 @@ bool wxRichTextBufferDataObject::SetData(size_t WXUNUSED(len), const void *buf)
  * Manages quick access to a pool of fonts for rendering rich text
  */
 
-WX_DECLARE_EXPORTED_STRING_HASH_MAP(wxFont, wxRichTextFontTableHashMap);
+WX_DECLARE_STRING_HASH_MAP_WITH_DECL(wxFont, wxRichTextFontTableHashMap, class WXDLLIMPEXP_RICHTEXT);
 
 class wxRichTextFontTableData: public wxObjectRefData
 {
@@ -7071,7 +7374,6 @@ IMPLEMENT_DYNAMIC_CLASS(wxRichTextFontTable, wxObject)
 wxRichTextFontTable::wxRichTextFontTable()
 {
     m_refData = new wxRichTextFontTableData;
-    m_refData->IncRef();
 }
 
 wxRichTextFontTable::wxRichTextFontTable(const wxRichTextFontTable& table)