]> git.saurik.com Git - wxWidgets.git/blobdiff - src/richtext/richtextbuffer.cpp
Skeleton for generic Drag code
[wxWidgets.git] / src / richtext / richtextbuffer.cpp
index a258c962e417e0acc165ea9747b22042b4680b81..5fa710cdadc6ca834bb35fe94efd4afffda83884 100644 (file)
@@ -57,6 +57,7 @@ const wxChar wxRichTextLineBreakChar = (wxChar) 29;
 
 inline void wxCheckSetFont(wxDC& dc, const wxFont& font)
 {
+#if 0
     const wxFont& font1 = dc.GetFont();
     if (font1.IsOk() && font.IsOk())
     {
@@ -65,9 +66,11 @@ inline void wxCheckSetFont(wxDC& dc, const wxFont& font)
             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);
 }
 
@@ -431,7 +434,7 @@ bool wxRichTextCompositeObject::Defragment(const wxRichTextRange& range)
     while (node)
     {
         wxRichTextObject* child = node->GetData();
-        if (!child->GetRange().IsOutside(range))
+        if (range == wxRICHTEXT_ALL || !child->GetRange().IsOutside(range))
         {
             wxRichTextCompositeObject* composite = wxDynamicCast(child, wxRichTextCompositeObject);
             if (composite)
@@ -589,7 +592,7 @@ bool wxRichTextParagraphLayoutBox::Draw(wxDC& dc, const wxRichTextRange& range,
                 // Skip
             }
             else
-                child->Draw(dc, range, selectionRange, childRect, descent, style);
+                child->Draw(dc, range, selectionRange, rect, descent, style);
         }
 
         node = node->GetNext();
@@ -857,25 +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);
 
-            wxRichTextRange range = line->GetAbsoluteRange();
+            wxRichTextLineList::compatibility_iterator node2 = child->GetLines().GetFirst();
+            while (node2)
+            {
+                wxRichTextLine* line = node2->GetData();
 
-            if (range.Contains(pos) ||
+                wxRichTextRange range = line->GetAbsoluteRange();
 
-                // 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 (range.Contains(pos) ||
 
-            node2 = node2->GetNext();
+                    // 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();
+            }
         }
 
         node = node->GetNext();
@@ -1792,8 +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())
+                if (!parasOnly && (characterStyle|charactersOnly) && range.GetStart() != newPara->GetRange().GetEnd())
                 {
                     wxRichTextRange childRange(range);
                     childRange.LimitTo(newPara->GetRange());
@@ -1942,11 +1948,14 @@ 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(wxTextAttr& currentStyle, const wxTextAttr& style, long& multipleStyleAttributes, int& multipleTextEffectAttributes)
+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.HasFontSize() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_FONT_SIZE))
+        if (style.HasFontSize() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_FONT_SIZE))
         {
             if (currentStyle.HasFontSize())
             {
@@ -1963,7 +1972,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             }
         }
 
-        if (style.HasFontItalic() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_FONT_ITALIC))
+        if (style.HasFontItalic() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_FONT_ITALIC))
         {
             if (currentStyle.HasFontItalic())
             {
@@ -1980,7 +1989,24 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             }
         }
 
-        if (style.HasFontWeight() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_FONT_WEIGHT))
+        if (style.HasFontFamily() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_FONT_FAMILY))
+        {
+            if (currentStyle.HasFontFamily())
+            {
+                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())
             {
@@ -1997,7 +2023,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             }
         }
 
-        if (style.HasFontFaceName() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_FONT_FACE))
+        if (style.HasFontFaceName() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_FONT_FACE))
         {
             if (currentStyle.HasFontFaceName())
             {
@@ -2017,7 +2043,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             }
         }
 
-        if (style.HasFontUnderlined() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_FONT_UNDERLINE))
+        if (style.HasFontUnderlined() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_FONT_UNDERLINE))
         {
             if (currentStyle.HasFontUnderlined())
             {
@@ -2035,7 +2061,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
         }
     }
 
-    if (style.HasTextColour() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_TEXT_COLOUR))
+    if (style.HasTextColour() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_TEXT_COLOUR))
     {
         if (currentStyle.HasTextColour())
         {
@@ -2050,7 +2076,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             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())
         {
@@ -2065,7 +2091,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             currentStyle.SetBackgroundColour(style.GetBackgroundColour());
     }
 
-    if (style.HasAlignment() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_ALIGNMENT))
+    if (style.HasAlignment() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_ALIGNMENT))
     {
         if (currentStyle.HasAlignment())
         {
@@ -2080,7 +2106,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             currentStyle.SetAlignment(style.GetAlignment());
     }
 
-    if (style.HasTabs() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_TABS))
+    if (style.HasTabs() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_TABS))
     {
         if (currentStyle.HasTabs())
         {
@@ -2095,7 +2121,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             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())
         {
@@ -2110,7 +2136,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             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())
         {
@@ -2125,7 +2151,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             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())
         {
@@ -2140,7 +2166,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             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())
         {
@@ -2155,7 +2181,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             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())
         {
@@ -2170,7 +2196,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             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())
         {
@@ -2185,7 +2211,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             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())
         {
@@ -2200,7 +2226,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             currentStyle.SetParagraphStyleName(style.GetParagraphStyleName());
     }
 
-    if (style.HasListStyleName() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_LIST_STYLE_NAME))
+    if (style.HasListStyleName() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_LIST_STYLE_NAME))
     {
         if (currentStyle.HasListStyleName())
         {
@@ -2215,7 +2241,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             currentStyle.SetListStyleName(style.GetListStyleName());
     }
 
-    if (style.HasBulletStyle() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_BULLET_STYLE))
+    if (style.HasBulletStyle() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_BULLET_STYLE))
     {
         if (currentStyle.HasBulletStyle())
         {
@@ -2230,7 +2256,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             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())
         {
@@ -2245,7 +2271,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             currentStyle.SetBulletNumber(style.GetBulletNumber());
     }
 
-    if (style.HasBulletText() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_BULLET_TEXT))
+    if (style.HasBulletText() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_BULLET_TEXT))
     {
         if (currentStyle.HasBulletText())
         {
@@ -2263,7 +2289,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
         }
     }
 
-    if (style.HasBulletName() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_BULLET_NAME))
+    if (style.HasBulletName() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_BULLET_NAME))
     {
         if (currentStyle.HasBulletName())
         {
@@ -2280,7 +2306,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
         }
     }
 
-    if (style.HasURL() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_URL))
+    if (style.HasURL() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_URL))
     {
         if (currentStyle.HasURL())
         {
@@ -2297,13 +2323,17 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
         }
     }
 
-    if (style.HasTextEffects() && !wxHasStyle(multipleStyleAttributes, wxTEXT_ATTR_EFFECTS))
+    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.
 
+            // 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.
+
             int currentRelevantTextEffects = currentStyle.GetTextEffects() & style.GetTextEffectFlags();
             int newRelevantTextEffects = style.GetTextEffects() & style.GetTextEffectFlags();
 
@@ -2322,9 +2352,17 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttr& currentStyle, const
             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, wxTEXT_ATTR_OUTLINE_LEVEL))
+    if (style.HasOutlineLevel() && !wxHasStyle(multipleStyleAttributes|absentStyleAttributes, wxTEXT_ATTR_OUTLINE_LEVEL))
     {
         if (currentStyle.HasOutlineLevel())
         {
@@ -2354,6 +2392,11 @@ bool wxRichTextParagraphLayoutBox::GetStyleForRange(const wxRichTextRange& 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)
     {
@@ -2364,7 +2407,7 @@ bool wxRichTextParagraphLayoutBox::GetStyleForRange(const wxRichTextRange& range
             {
                 wxTextAttr paraStyle = para->GetCombinedAttributes();
 
-                CollectStyle(style, paraStyle, multipleStyleAttributes, multipleTextEffectAttributes);
+                CollectStyle(style, paraStyle, multipleStyleAttributes, multipleTextEffectAttributes, absentStyleAttributesPara, absentTextEffectAttributesPara);
             }
             else
             {
@@ -2374,7 +2417,7 @@ bool wxRichTextParagraphLayoutBox::GetStyleForRange(const wxRichTextRange& range
                 // First collect paragraph attributes only
                 wxTextAttr paraStyle = para->GetCombinedAttributes();
                 paraStyle.SetFlags(paraStyle.GetFlags() & wxTEXT_ATTR_PARAGRAPH);
-                CollectStyle(style, paraStyle, multipleStyleAttributes, multipleTextEffectAttributes);
+                CollectStyle(style, paraStyle, multipleStyleAttributes, multipleTextEffectAttributes, absentStyleAttributesPara, absentTextEffectAttributesPara);
 
                 wxRichTextObjectList::compatibility_iterator childNode = para->GetChildren().GetFirst();
 
@@ -2388,7 +2431,7 @@ bool wxRichTextParagraphLayoutBox::GetStyleForRange(const wxRichTextRange& range
                         // Now collect character attributes only
                         childStyle.SetFlags(childStyle.GetFlags() & wxTEXT_ATTR_CHARACTER);
 
-                        CollectStyle(style, childStyle, multipleStyleAttributes, multipleTextEffectAttributes);
+                        CollectStyle(style, childStyle, multipleStyleAttributes, multipleTextEffectAttributes, absentStyleAttributesChar, absentTextEffectAttributesChar);
                     }
 
                     childNode = childNode->GetNext();
@@ -3105,7 +3148,7 @@ wxRichTextParagraph::~wxRichTextParagraph()
 }
 
 /// Draw the item
-bool wxRichTextParagraph::Draw(wxDC& dc, const wxRichTextRange& range, const wxRichTextRange& selectionRange, const wxRect& WXUNUSED(rect), int WXUNUSED(descent), int style)
+bool wxRichTextParagraph::Draw(wxDC& dc, const wxRichTextRange& range, const wxRichTextRange& selectionRange, const wxRect& rect, int WXUNUSED(descent), int style)
 {
     wxTextAttr attr = GetCombinedAttributes();
 
@@ -3130,7 +3173,7 @@ bool wxRichTextParagraph::Draw(wxDC& dc, const wxRichTextRange& range, const wxR
             }
 
             // Get line height from first line, if any
-            wxRichTextLine* line = m_cachedLines.GetFirst() ? (wxRichTextLine* ) m_cachedLines.GetFirst()->GetData() : (wxRichTextLine*) NULL;
+            wxRichTextLine* line = m_cachedLines.GetFirst() ? (wxRichTextLine* ) m_cachedLines.GetFirst()->GetData() : NULL;
 
             wxPoint linePos;
             int lineHeight wxDUMMY_INITIALIZE(0);
@@ -3184,52 +3227,56 @@ bool wxRichTextParagraph::Draw(wxDC& dc, const wxRichTextRange& range, const wxR
         wxRichTextLine* line = node->GetData();
         wxRichTextRange lineRange = line->GetAbsoluteRange();
 
-        int maxDescent = line->GetDescent();
-
         // Lines are specified relative to the paragraph
 
         wxPoint linePosition = line->GetPosition() + GetPosition();
-        wxPoint objectPosition = linePosition;
-
-        // Loop through objects until we get to the one within range
-        wxRichTextObjectList::compatibility_iterator node2 = m_children.GetFirst();
 
-        int i = 0;
-        while (node2)
+        // 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))
         {
-            wxRichTextObject* child = node2->GetData();
+            wxPoint objectPosition = linePosition;
+            int maxDescent = line->GetDescent();
 
-            if (!child->GetRange().IsOutside(lineRange) && !lineRange.IsOutside(range))
+            // Loop through objects until we get to the one within range
+            wxRichTextObjectList::compatibility_iterator node2 = m_children.GetFirst();
+
+            int i = 0;
+            while (node2)
             {
-                // Draw this part of the line at the correct position
-                wxRichTextRange objectRange(child->GetRange());
-                objectRange.LimitTo(lineRange);
+                wxRichTextObject* child = node2->GetData();
 
-                wxSize objectSize;
-#if wxRICHTEXT_USE_OPTIMIZED_LINE_DRAWING && wxRICHTEXT_USE_PARTIAL_TEXT_EXTENTS
-                if (i < (int) line->GetObjectSizes().GetCount())
+                if (child->GetRange().GetLength() > 0 && !child->GetRange().IsOutside(lineRange) && !lineRange.IsOutside(range))
                 {
-                    objectSize.x = line->GetObjectSizes()[(size_t) i];
-                }
-                else
+                    // 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);
-                }
+                    {
+                        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);
+                    // 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;
+                    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();
+                node2 = node2->GetNext();
+            }
         }
 
         node = node->GetNext();
@@ -3243,6 +3290,9 @@ static int wxRichTextGetRangeWidth(const wxRichTextParagraph& para, const wxRich
 {
     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];
@@ -3345,6 +3395,12 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
     {
         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?
@@ -3415,6 +3471,10 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
             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);
@@ -3512,7 +3572,7 @@ 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));
 
@@ -3534,7 +3594,7 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
         {
             wxRichTextObject* child = node2->GetData();
 
-            if (!child->GetRange().IsOutside(lineRange))
+            if (child->GetRange().GetLength() > 0 && !child->GetRange().IsOutside(lineRange))
             {
                 wxRichTextRange rangeToUse = lineRange;
                 rangeToUse.LimitTo(child->GetRange());
@@ -3564,7 +3624,7 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
 }
 
 /// Apply paragraph styles, such as centering, to wrapped lines
-void wxRichTextParagraph::ApplyParagraphStyle(const wxTextAttr& attr, const wxRect& rect)
+void wxRichTextParagraph::ApplyParagraphStyle(const wxTextAttr& attr, const wxRect& rect, wxDC& dc)
 {
     if (!attr.HasAlignment())
         return;
@@ -3580,12 +3640,18 @@ void wxRichTextParagraph::ApplyParagraphStyle(const wxTextAttr& attr, const wxRe
         // 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 - rect.x) - rightIndent - size.x)/2 + pos.x;
+            // Lines are relative to the paragraph position
+            pos.x -= GetPosition().x;
             line->SetPosition(pos);
         }
         else if (attr.HasAlignment() && GetAttributes().GetAlignment() == wxTEXT_ALIGNMENT_RIGHT)
         {
-            pos.x = pos.x + rect.GetWidth() - size.x;
+            int rightIndent = ConvertTenthsMMToPixels(dc, attr.GetRightIndent());
+            pos.x = rect.x + rect.GetWidth() - size.x - rightIndent;
+            // Lines are relative to the paragraph position
+            pos.x -= GetPosition().x;
             line->SetPosition(pos);
         }
 
@@ -4135,7 +4201,9 @@ bool wxRichTextParagraph::GetContiguousPlainText(wxString& text, const wxRichTex
                     text += textObj->GetTextForRange(range);
                 }
                 else
-                    return true;
+                {
+                    text += wxT(" ");
+                }
             }
 
             node = node->GetNext();
@@ -4155,7 +4223,9 @@ bool wxRichTextParagraph::GetContiguousPlainText(wxString& text, const wxRichTex
                     text = textObj->GetTextForRange(range) + text;
                 }
                 else
-                    return true;
+                {
+                    text = wxT(" ") + text;
+                }
             }
 
             node = node->GetPrevious();
@@ -4186,7 +4256,7 @@ bool wxRichTextParagraph::FindWrapPosition(const wxRichTextRange& range, wxDC& d
             widthBefore = 0;
 
         size_t i;
-        for (i = (size_t) range.GetStart(); i < (size_t) range.GetEnd(); i++)
+        for (i = (size_t) range.GetStart(); i <= (size_t) range.GetEnd(); i++)
         {
             int widthFromStartOfThisRange = (*partialExtents)[i - GetRange().GetStart()] - widthBefore;
 
@@ -5207,6 +5277,15 @@ bool wxRichTextBuffer::InsertParagraphsWithUndo(long pos, const wxRichTextParagr
 
     action->GetNewParagraphs() = paragraphs;
 
+    if (p && !p->IsDefault())
+    {
+        for (wxRichTextObjectList::compatibility_iterator node = action->GetNewParagraphs().GetChildren().GetFirst(); node; node = node->GetNext())
+        {
+            wxRichTextObject* child = node->GetData();
+            child->SetAttributes(*p);
+        }
+    }
+
     action->SetPosition(pos);
 
     wxRichTextRange range = wxRichTextRange(pos, pos + paragraphs.GetRange().GetEnd() - 1);
@@ -5289,8 +5368,14 @@ bool wxRichTextBuffer::InsertNewlineWithUndo(long pos, wxRichTextCtrl* ctrl, int
     {
         if (para && para->GetRange().GetEnd() == pos)
             pos1 ++;
+
+        // Now see if we need to number the paragraph.
         if (newPara->GetAttributes().HasBulletNumber())
-            newPara->GetAttributes().SetBulletNumber(newPara->GetAttributes().GetBulletNumber()+1);
+        {
+            wxRichTextAttr numberingAttr;
+            if (FindNextParagraphNumber(para, numberingAttr))
+                wxRichTextApplyStyle(newPara->GetAttributes(), (const wxRichTextAttr&) numberingAttr);
+        }
     }
 
     action->SetPosition(pos);
@@ -5399,6 +5484,25 @@ wxTextAttr wxRichTextBuffer::GetStyleForNewParagraph(long pos, bool caretPositio
                 }
             }
         }
+
+        // Also apply list style if present
+        if (lookUpNewParaStyle && !para->GetAttributes().GetListStyleName().IsEmpty() && GetStyleSheet())
+        {
+            wxRichTextListStyleDefinition* listDef = GetStyleSheet()->FindListStyle(para->GetAttributes().GetListStyleName());
+            if (listDef)
+            {
+                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());
+            }
+        }
+
         if (!foundAttributes)
         {
             attr = para->GetAttributes();
@@ -5411,14 +5515,6 @@ wxTextAttr wxRichTextBuffer::GetStyleForNewParagraph(long pos, bool caretPositio
             attr.SetFlags(flags);
         }
 
-        // Now see if we need to number the paragraph.
-        if (attr.HasBulletStyle())
-        {
-            wxTextAttr numberingAttr;
-            if (FindNextParagraphNumber(para, numberingAttr))
-                wxRichTextApplyStyle(attr, (const wxTextAttr&) numberingAttr);
-        }
-
         return attr;
     }
     else
@@ -5548,8 +5644,6 @@ bool wxRichTextBuffer::BeginStyle(const wxTextAttr& style)
 
     SetDefaultStyle(newStyle);
 
-    // wxLogDebug("Default style size = %d", GetDefaultStyle().GetFont().GetPointSize());
-
     return true;
 }
 
@@ -5592,7 +5686,7 @@ void wxRichTextBuffer::ClearStyleStack()
 bool wxRichTextBuffer::BeginBold()
 {
     wxTextAttr attr;
-    attr.SetFontWeight(wxBOLD);
+    attr.SetFontWeight(wxFONTWEIGHT_BOLD);
 
     return BeginStyle(attr);
 }
@@ -5601,7 +5695,7 @@ bool wxRichTextBuffer::BeginBold()
 bool wxRichTextBuffer::BeginItalic()
 {
     wxTextAttr attr;
-    attr.SetFontStyle(wxITALIC);
+    attr.SetFontStyle(wxFONTSTYLE_ITALIC);
 
     return BeginStyle(attr);
 }
@@ -5829,14 +5923,15 @@ 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
@@ -5859,7 +5954,7 @@ 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)
@@ -5874,7 +5969,7 @@ 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)
@@ -5918,7 +6013,7 @@ 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)
             {
@@ -5952,7 +6047,7 @@ 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)
@@ -5968,7 +6063,7 @@ 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)
@@ -5981,7 +6076,7 @@ bool wxRichTextBuffer::SaveFile(const wxString& filename, int type)
 }
 
 /// Load from a stream
-bool wxRichTextBuffer::LoadFile(wxInputStream& stream, int type)
+bool wxRichTextBuffer::LoadFile(wxInputStream& stream, wxRichTextFileType type)
 {
     wxRichTextFileHandler* handler = FindHandler(type);
     if (handler)
@@ -5997,7 +6092,7 @@ 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)
@@ -6071,7 +6166,7 @@ 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;
@@ -6095,7 +6190,7 @@ bool wxRichTextBuffer::PasteFromClipboard(long position)
 #else
                 wxString text2 = text;
 #endif
-                InsertTextWithUndo(position+1, text2, GetRichTextCtrl());
+                InsertTextWithUndo(position+1, text2, GetRichTextCtrl(), wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE);
 
                 if (GetRichTextCtrl())
                     GetRichTextCtrl()->ShowPosition(position + text2.Length());
@@ -6116,10 +6211,10 @@ 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);
 
@@ -6518,6 +6613,58 @@ wxRichTextAction::~wxRichTextAction()
 {
 }
 
+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 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;
+
+        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 (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 (node2)
+                    node2 = node2->GetNext();
+            }
+
+            if (node)
+                node = node->GetNext();
+        }
+    }
+#endif
+}
+
 bool wxRichTextAction::Do()
 {
     m_buffer->Modify(true);
@@ -6532,49 +6679,7 @@ bool wxRichTextAction::Do()
             wxArrayInt optimizationLineYPositions;
 
 #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;
-
-                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 (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 (node2)
-                            node2 = node2->GetNext();
-                    }
-
-                    if (node)
-                        node = node->GetNext();
-                }
-            }
+            CalculateRefreshOptimizations(optimizationLineCharPositions, optimizationLineYPositions);
 #endif
 
             m_buffer->InsertFragment(GetRange().GetStart(), m_newParagraphs);
@@ -6599,10 +6704,7 @@ bool wxRichTextAction::Do()
 
             newCaretPosition = wxMin(newCaretPosition, (m_buffer->GetRange().GetEnd()-1));
 
-            if (optimizationLineCharPositions.GetCount() > 0)
-                UpdateAppearance(newCaretPosition, true /* send update event */, & optimizationLineCharPositions, & optimizationLineYPositions);
-            else
-                UpdateAppearance(newCaretPosition, true /* send update event */);
+            UpdateAppearance(newCaretPosition, true /* send update event */, & optimizationLineCharPositions, & optimizationLineYPositions, true /* do */);
 
             wxRichTextEvent cmdEvent(
                 wxEVT_COMMAND_RICHTEXT_CONTENT_INSERTED,
@@ -6617,6 +6719,13 @@ bool wxRichTextAction::Do()
         }
     case wxRICHTEXT_DELETE:
         {
+            wxArrayInt optimizationLineCharPositions;
+            wxArrayInt optimizationLineYPositions;
+
+#if wxRICHTEXT_USE_OPTIMIZED_DRAWING
+            CalculateRefreshOptimizations(optimizationLineCharPositions, optimizationLineYPositions);
+#endif
+
             m_buffer->DeleteRange(GetRange());
             m_buffer->UpdateRanges();
             m_buffer->Invalidate(wxRichTextRange(GetRange().GetStart(), GetRange().GetStart()));
@@ -6625,7 +6734,7 @@ bool wxRichTextAction::Do()
             if (caretPos >= m_buffer->GetRange().GetEnd())
                 caretPos --;
 
-            UpdateAppearance(caretPos, true /* send update event */);
+            UpdateAppearance(caretPos, true /* send update event */, & optimizationLineCharPositions, & optimizationLineYPositions, true /* do */);
 
             wxRichTextEvent cmdEvent(
                 wxEVT_COMMAND_RICHTEXT_CONTENT_DELETED,
@@ -6671,13 +6780,20 @@ bool wxRichTextAction::Undo()
     {
     case wxRICHTEXT_INSERT:
         {
+            wxArrayInt optimizationLineCharPositions;
+            wxArrayInt optimizationLineYPositions;
+
+#if wxRICHTEXT_USE_OPTIMIZED_DRAWING
+            CalculateRefreshOptimizations(optimizationLineCharPositions, optimizationLineYPositions);
+#endif
+
             m_buffer->DeleteRange(GetRange());
             m_buffer->UpdateRanges();
             m_buffer->Invalidate(wxRichTextRange(GetRange().GetStart(), GetRange().GetStart()));
 
             long newCaretPosition = GetPosition() - 1;
 
-            UpdateAppearance(newCaretPosition, true /* send update event */);
+            UpdateAppearance(newCaretPosition, true, /* send update event */ & optimizationLineCharPositions, & optimizationLineYPositions, false /* undo */);
 
             wxRichTextEvent cmdEvent(
                 wxEVT_COMMAND_RICHTEXT_CONTENT_DELETED,
@@ -6692,11 +6808,18 @@ bool wxRichTextAction::Undo()
         }
     case wxRICHTEXT_DELETE:
         {
+            wxArrayInt optimizationLineCharPositions;
+            wxArrayInt optimizationLineYPositions;
+
+#if wxRICHTEXT_USE_OPTIMIZED_DRAWING
+            CalculateRefreshOptimizations(optimizationLineCharPositions, optimizationLineYPositions);
+#endif
+
             m_buffer->InsertFragment(GetRange().GetStart(), m_oldParagraphs);
             m_buffer->UpdateRanges();
             m_buffer->Invalidate(GetRange());
 
-            UpdateAppearance(GetPosition(), true /* send update event */);
+            UpdateAppearance(GetPosition(), true, /* send update event */ & optimizationLineCharPositions, & optimizationLineYPositions, false /* undo */);
 
             wxRichTextEvent cmdEvent(
                 wxEVT_COMMAND_RICHTEXT_CONTENT_INSERTED,
@@ -6735,7 +6858,7 @@ bool wxRichTextAction::Undo()
 }
 
 /// Update the control appearance
-void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent, wxArrayInt* optimizationLineCharPositions, wxArrayInt* optimizationLineYPositions)
+void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent, wxArrayInt* optimizationLineCharPositions, wxArrayInt* optimizationLineYPositions, bool isDoCmd)
 {
     if (m_ctrl)
     {
@@ -6746,7 +6869,7 @@ void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent
 
 #if wxRICHTEXT_USE_OPTIMIZED_DRAWING
             // Find refresh rectangle if we are in a position to optimise refresh
-            if (m_cmdId == wxRICHTEXT_INSERT && optimizationLineCharPositions && optimizationLineCharPositions->GetCount() > 0)
+            if ((m_cmdId == wxRICHTEXT_INSERT || m_cmdId == wxRICHTEXT_DELETE) && optimizationLineCharPositions)
             {
                 size_t i;
 
@@ -6757,17 +6880,57 @@ void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent
                 int firstY = 0;
                 int lastY = firstVisiblePt.y + clientSize.y;
 
-                bool foundStart = false;
                 bool foundEnd = false;
 
                 // position offset - how many characters were inserted
                 int positionOffset = GetRange().GetLength();
 
+                // Determine whether this is Do or Undo, and adjust positionOffset accordingly
+                if ((m_cmdId == wxRICHTEXT_DELETE && isDoCmd) || (m_cmdId == wxRICHTEXT_INSERT && !isDoCmd))
+                    positionOffset = - positionOffset;
+
                 // 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.
 
                 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 (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();
+                            }
+                        }
+
+                        firstY = line->GetAbsolutePosition().y;
+                    }
+                }
+
                 wxRichTextObjectList::compatibility_iterator node = m_buffer->GetChildren().Find(para);
                 while (node)
                 {
@@ -6787,14 +6950,19 @@ void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent
                             node2 = wxRichTextLineList::compatibility_iterator();
                             node = wxRichTextObjectList::compatibility_iterator();
                         }
-                        else
+                        // Detect last line in the buffer
+                        else if (!node2->GetNext() && para->GetRange().Contains(m_buffer->GetRange().GetEnd()))
                         {
-                            if (!foundStart)
-                            {
-                                firstY = pt.y - firstVisiblePt.y;
-                                foundStart = true;
-                            }
+                            foundEnd = true;
+                            lastY = pt.y + line->GetSize().y;
+
+                            node2 = wxRichTextLineList::compatibility_iterator();
+                            node = wxRichTextObjectList::compatibility_iterator();
 
+                            break;
+                        }
+                        else
+                        {
                             // search for this line being at the same position as before
                             for (i = 0; i < optimizationLineCharPositions->GetCount(); i++)
                             {
@@ -6803,7 +6971,8 @@ void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent
                                 {
                                     // Stop, we're now the same as we were
                                     foundEnd = true;
-                                    lastY = pt.y - firstVisiblePt.y;
+
+                                    lastY = pt.y;
 
                                     node2 = wxRichTextLineList::compatibility_iterator();
                                     node = wxRichTextObjectList::compatibility_iterator();
@@ -6821,22 +6990,21 @@ void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent
                         node = node->GetNext();
                 }
 
-                if (!foundStart)
-                    firstY = firstVisiblePt.y;
+                firstY = wxMax(firstVisiblePt.y, firstY);
                 if (!foundEnd)
                     lastY = firstVisiblePt.y + clientSize.y;
 
-                wxRect rect(firstVisiblePt.x, firstY, firstVisiblePt.x + clientSize.x, lastY - firstY);
+                // Convert to device coordinates
+                wxRect rect(m_ctrl->GetPhysicalPoint(wxPoint(firstVisiblePt.x, firstY)), wxSize(clientSize.x, lastY - firstY));
                 m_ctrl->RefreshRect(rect);
-
-                // TODO: we need to make sure that lines are only drawn if in the update region. The rect
-                // passed to Draw is currently used in different ways (to pass the position the content should
-                // be drawn at as well as the relevant region).
             }
             else
 #endif
                 m_ctrl->Refresh(false);
 
+#if wxRICHTEXT_USE_OWN_CARET
+            m_ctrl->PositionCaret();
+#endif
             if (sendUpdateEvent)
                 wxTextCtrl::SendTextUpdatedEvent(m_ctrl);
         }
@@ -6927,10 +7095,11 @@ bool wxRichTextImage::LoadFromBlock()
 /// Make block from the wxImage
 bool wxRichTextImage::MakeBlock()
 {
-    if (m_imageBlock.GetImageType() == wxBITMAP_TYPE_ANY || m_imageBlock.GetImageType() == -1)
-        m_imageBlock.SetImageType(wxBITMAP_TYPE_PNG);
+    wxBitmapType type = m_imageBlock.GetImageType();
+    if ( type == wxBITMAP_TYPE_ANY || type == wxBITMAP_TYPE_INVALID )
+        m_imageBlock.SetImageType(type = wxBITMAP_TYPE_PNG);
 
-    m_imageBlock.MakeImageBlock(m_image, m_imageBlock.GetImageType());
+    m_imageBlock.MakeImageBlock(m_image, type);
     return m_imageBlock.Ok();
 }
 
@@ -6986,6 +7155,9 @@ bool wxRichTextImage::GetRangeSize(const wxRichTextRange& range, wxSize& size, i
     if (!range.IsWithin(GetRange()))
         return false;
 
+    if (!m_image.Ok())
+        ((wxRichTextImage*) this)->LoadFromBlock();
+
     if (partialExtents)
     {
         if (m_image.Ok())
@@ -7157,7 +7329,7 @@ bool wxRichTextFileHandler::SaveFile(wxRichTextBuffer *buffer, const wxString& f
 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());
 }
@@ -7247,7 +7419,7 @@ void wxRichTextImageBlock::Init()
 {
     m_data = NULL;
     m_dataSize = 0;
-    m_imageType = -1;
+    m_imageType = wxBITMAP_TYPE_INVALID;
 }
 
 void wxRichTextImageBlock::Clear()
@@ -7255,7 +7427,7 @@ void wxRichTextImageBlock::Clear()
     delete[] m_data;
     m_data = NULL;
     m_dataSize = 0;
-    m_imageType = -1;
+    m_imageType = wxBITMAP_TYPE_INVALID;
 }
 
 
@@ -7265,24 +7437,23 @@ 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;
@@ -7309,19 +7480,16 @@ 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))
     {
@@ -7388,9 +7556,8 @@ 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))
     {
@@ -7437,14 +7604,17 @@ bool wxRichTextImageBlock::WriteHex(wxOutputStream& stream)
 }
 
 // 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;
 
-    wxChar str[2];
+    // 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 ++)
@@ -7672,6 +7842,7 @@ wxRichTextFontTable::wxRichTextFontTable()
 }
 
 wxRichTextFontTable::wxRichTextFontTable(const wxRichTextFontTable& table)
+    : wxObject()
 {
     (*this) = table;
 }