]> git.saurik.com Git - wxWidgets.git/blobdiff - src/richtext/richtextbuffer.cpp
compilation fix after last commit
[wxWidgets.git] / src / richtext / richtextbuffer.cpp
index 949d375ced59ed1b5c6b9465a1967bcd0d3bf96d..4b78f068089f7bd748f475b04da170594b1e191e 100644 (file)
@@ -906,7 +906,7 @@ wxRichTextRange wxRichTextParagraphLayoutBox::AddParagraph(const wxString& text,
     // Don't use the base style, just the default style, and the base style will
     // be combined at display time.
     // Divide into paragraph and character styles.
-    
+
     wxTextAttrEx defaultCharStyle;
     wxTextAttrEx defaultParaStyle;
 
@@ -930,7 +930,7 @@ wxRichTextRange wxRichTextParagraphLayoutBox::AddParagraphs(const wxString& text
     // Don't use the base style, just the default style, and the base style will
     // be combined at display time.
     // Divide into paragraph and character styles.
-    
+
     wxTextAttrEx defaultCharStyle;
     wxTextAttrEx defaultParaStyle;
     wxRichTextSplitParaCharStyles(GetDefaultStyle(), defaultParaStyle, defaultCharStyle);
@@ -993,7 +993,7 @@ wxRichTextRange wxRichTextParagraphLayoutBox::AddImage(const wxImage& image, wxT
     // Don't use the base style, just the default style, and the base style will
     // be combined at display time.
     // Divide into paragraph and character styles.
-    
+
     wxTextAttrEx defaultCharStyle;
     wxTextAttrEx defaultParaStyle;
     wxRichTextSplitParaCharStyles(GetDefaultStyle(), defaultParaStyle, defaultCharStyle);
@@ -1561,11 +1561,12 @@ bool wxRichTextParagraphLayoutBox::SetStyle(const wxRichTextRange& range, const
     bool parasOnly = ((flags & wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY) != 0);
     bool charactersOnly = ((flags & wxRICHTEXT_SETSTYLE_CHARACTERS_ONLY) != 0);
     bool resetExistingStyle = ((flags & wxRICHTEXT_SETSTYLE_RESET) != 0);
+    bool removeStyle = ((flags & wxRICHTEXT_SETSTYLE_REMOVE) != 0);
 
     // Apply paragraph style first, if any
     wxRichTextAttr wholeStyle(style);
 
-    if (wholeStyle.HasParagraphStyleName() && GetStyleSheet())
+    if (!removeStyle && wholeStyle.HasParagraphStyleName() && GetStyleSheet())
     {
         wxRichTextParagraphStyleDefinition* def = GetStyleSheet()->FindParagraphStyle(wholeStyle.GetParagraphStyleName());
         if (def)
@@ -1576,7 +1577,7 @@ bool wxRichTextParagraphLayoutBox::SetStyle(const wxRichTextRange& range, const
     wxRichTextAttr characterAttributes(wholeStyle);
     characterAttributes.SetFlags(characterAttributes.GetFlags() & (wxTEXT_ATTR_CHARACTER));
 
-    if (characterAttributes.HasCharacterStyleName() && GetStyleSheet())
+    if (!removeStyle && characterAttributes.HasCharacterStyleName() && GetStyleSheet())
     {
         wxRichTextCharacterStyleDefinition* def = GetStyleSheet()->FindCharacterStyle(characterAttributes.GetCharacterStyleName());
         if (def)
@@ -1630,7 +1631,12 @@ bool wxRichTextParagraphLayoutBox::SetStyle(const wxRichTextRange& range, const
                 // to be included in the paragraph style
                 if ((paragraphStyle || parasOnly) && !charactersOnly)
                 {
-                    if (resetExistingStyle)
+                    if (removeStyle)
+                    {
+                        // Removes the given style from the paragraph
+                        wxRichTextRemoveStyle(newPara->GetAttributes(), style);
+                    }
+                    else if (resetExistingStyle)
                         newPara->GetAttributes() = wholeStyle;
                     else
                     {
@@ -1705,7 +1711,12 @@ bool wxRichTextParagraphLayoutBox::SetStyle(const wxRichTextRange& range, const
                     {
                         wxRichTextObject* child = node2->GetData();
 
-                        if (resetExistingStyle)
+                        if (removeStyle)
+                        {
+                            // Removes the given style from the paragraph
+                            wxRichTextRemoveStyle(child->GetAttributes(), style);
+                        }
+                        else if (resetExistingStyle)
                             child->GetAttributes() = characterAttributes;
                         else
                         {
@@ -2221,7 +2232,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
         {
             // 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.
-                
+
             int currentRelevantTextEffects = currentStyle.GetTextEffects() & style.GetTextEffectFlags();
             int newRelevantTextEffects = style.GetTextEffects() & style.GetTextEffectFlags();
 
@@ -2229,7 +2240,7 @@ bool wxRichTextParagraphLayoutBox::CollectStyle(wxTextAttrEx& currentStyle, cons
             {
                 // Find the text effects that were different, using XOR
                 int differentEffects = currentRelevantTextEffects ^ newRelevantTextEffects;
-                    
+
                 // Clash of style - mark as such
                 multipleTextEffectAttributes |= differentEffects;
                 currentStyle.SetTextEffectFlags(currentStyle.GetTextEffectFlags() & ~differentEffects);
@@ -2271,7 +2282,7 @@ bool wxRichTextParagraphLayoutBox::GetStyleForRange(const wxRichTextRange& range
     // The attributes that aren't valid because of multiple styles within the range
     long multipleStyleAttributes = 0;
     int multipleTextEffectAttributes = 0;
-    
+
     wxRichTextObjectList::compatibility_iterator node = GetChildren().GetFirst();
     while (node)
     {
@@ -2433,7 +2444,7 @@ void wxRichTextParagraphLayoutBox::Reset()
     Clear();
 
     AddParagraph(wxEmptyString);
-    
+
     Invalidate(wxRICHTEXT_ALL);
 }
 
@@ -2565,7 +2576,7 @@ bool wxRichTextParagraphLayoutBox::ApplyStyleSheet(wxRichTextStyleSheet* styleSh
 bool wxRichTextParagraphLayoutBox::SetListStyle(const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int startFrom, int specifiedLevel)
 {
     wxRichTextStyleSheet* styleSheet = GetStyleSheet();
-    
+
     bool withUndo = ((flags & wxRICHTEXT_SETSTYLE_WITH_UNDO) != 0);
     // bool applyMinimal = ((flags & wxRICHTEXT_SETSTYLE_OPTIMIZE) != 0);
     bool specifyLevel = ((flags & wxRICHTEXT_SETSTYLE_SPECIFY_LEVEL) != 0);
@@ -2923,7 +2934,7 @@ bool wxRichTextParagraphLayoutBox::FindNextParagraphNumber(wxRichTextParagraph*
 {
     if (!previousParagraph->GetAttributes().HasFlag(wxTEXT_ATTR_BULLET_STYLE) || previousParagraph->GetAttributes().GetBulletStyle() == wxTEXT_ATTR_BULLET_STYLE_NONE)
         return false;
-    
+
     wxRichTextStyleSheet* styleSheet = GetStyleSheet();
     if (styleSheet && !previousParagraph->GetAttributes().GetListStyleName().IsEmpty())
     {
@@ -2932,7 +2943,7 @@ bool wxRichTextParagraphLayoutBox::FindNextParagraphNumber(wxRichTextParagraph*
         {
             // int thisIndent = previousParagraph->GetAttributes().GetLeftIndent();
             // int thisLevel = def->FindLevelForIndent(thisIndent);
-            
+
             bool isOutline = (previousParagraph->GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_OUTLINE) != 0;
 
             attr.SetFlags(previousParagraph->GetAttributes().GetFlags() & (wxTEXT_ATTR_BULLET_STYLE|wxTEXT_ATTR_BULLET_NUMBER|wxTEXT_ATTR_BULLET_TEXT|wxTEXT_ATTR_BULLET_NAME));
@@ -2940,10 +2951,10 @@ bool wxRichTextParagraphLayoutBox::FindNextParagraphNumber(wxRichTextParagraph*
                 attr.SetBulletName(previousParagraph->GetAttributes().GetBulletName());
             attr.SetBulletStyle(previousParagraph->GetAttributes().GetBulletStyle());
             attr.SetListStyleName(previousParagraph->GetAttributes().GetListStyleName());
-            
+
             int nextNumber = previousParagraph->GetAttributes().GetBulletNumber() + 1;
             attr.SetBulletNumber(nextNumber);
-            
+
             if (isOutline)
             {
                 wxString text = previousParagraph->GetAttributes().GetBulletText();
@@ -2962,7 +2973,7 @@ bool wxRichTextParagraphLayoutBox::FindNextParagraphNumber(wxRichTextParagraph*
                     attr.SetBulletText(text);
                 }
             }
-            
+
             return true;
         }
         else
@@ -3017,6 +3028,16 @@ bool wxRichTextParagraph::Draw(wxDC& dc, const wxRichTextRange& range, const wxR
 
             wxTextAttrEx bulletAttr(GetCombinedAttributes());
 
+            // Combine with the font of the first piece of content, if one is specified
+            if (GetChildren().GetCount() > 0)
+            {
+                wxRichTextObject* firstObj = (wxRichTextObject*) GetChildren().GetFirst()->GetData();
+                if (firstObj->GetAttributes().HasFont())
+                {
+                    wxRichTextApplyStyle(bulletAttr, firstObj->GetAttributes());
+                }
+            }
+
             // Get line height from first line, if any
             wxRichTextLine* line = m_cachedLines.GetFirst() ? (wxRichTextLine* ) m_cachedLines.GetFirst()->GetData() : (wxRichTextLine*) NULL;
 
@@ -3049,15 +3070,15 @@ bool wxRichTextParagraph::Draw(wxDC& dc, const wxRichTextRange& range, const wxR
                 if (wxRichTextBuffer::GetRenderer())
                     wxRichTextBuffer::GetRenderer()->DrawBitmapBullet(this, dc, bulletAttr, bulletRect);
             }
-            else if (attr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_STANDARD)                
-            {                
+            else if (attr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_STANDARD)
+            {
                 if (wxRichTextBuffer::GetRenderer())
                     wxRichTextBuffer::GetRenderer()->DrawStandardBullet(this, dc, bulletAttr, bulletRect);
             }
             else
             {
                 wxString bulletText = GetBulletText();
-                
+
                 if (!bulletText.empty() && wxRichTextBuffer::GetRenderer())
                     wxRichTextBuffer::GetRenderer()->DrawTextBullet(this, dc, bulletAttr, bulletRect, bulletText);
             }
@@ -3084,7 +3105,7 @@ bool wxRichTextParagraph::Draw(wxDC& dc, const wxRichTextRange& range, const wxR
         while (node2)
         {
             wxRichTextObject* child = node2->GetData();
-            
+
             if (!child->GetRange().IsOutside(lineRange) && !lineRange.IsOutside(range))
             {
                 // Draw this part of the line at the correct position
@@ -3197,17 +3218,17 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
         // We may only be looking at part of a child, if we searched back for wrapping
         // and found a suitable point some way into the child. So get the size for the fragment
         // if necessary.
-        
+
         long nextBreakPos = GetFirstLineBreakPosition(lastEndPos+1);
         long lastPosToUse = child->GetRange().GetEnd();
         bool lineBreakInThisObject = (nextBreakPos > -1 && nextBreakPos <= child->GetRange().GetEnd());
-        
+
         if (lineBreakInThisObject)
             lastPosToUse = nextBreakPos;
 
         wxSize childSize;
         int childDescent = 0;
-        
+
         if ((nextBreakPos == -1) && (lastEndPos == child->GetRange().GetStart() - 1)) // i.e. we want to get the whole thing
         {
             childSize = child->GetCachedSize();
@@ -3479,7 +3500,7 @@ bool wxRichTextParagraph::GetRangeSize(const wxRichTextRange& range, wxSize& siz
                 rangeToUse.LimitTo(child->GetRange());
                 int childDescent = 0;
 
-                if (child->GetRangeSize(rangeToUse, childSize, childDescent, dc, flags, position))
+                if (child->GetRangeSize(rangeToUse, childSize, childDescent, dc, flags, wxPoint(position.x + sz.x, position.y)))
                 {
                     sz.y = wxMax(sz.y, childSize.y);
                     sz.x += childSize.x;
@@ -3524,7 +3545,7 @@ bool wxRichTextParagraph::GetRangeSize(const wxRichTextRange& range, wxSize& siz
 
                         wxSize childSize;
                         int childDescent = 0;
-                        if (child->GetRangeSize(rangeToUse, childSize, childDescent, dc, flags, position))
+                        if (child->GetRangeSize(rangeToUse, childSize, childDescent, dc, flags, wxPoint(position.x + sz.x, position.y)))
                         {
                             lineSize.y = wxMax(lineSize.y, childSize.y);
                             lineSize.x += childSize.x;
@@ -3658,12 +3679,12 @@ int wxRichTextParagraph::HitTest(wxDC& dc, const wxPoint& pt, long& textPosition
             if (pt.x < linePos.x)
             {
                 textPosition = lineRange.GetStart();
-                return wxRICHTEXT_HITTEST_BEFORE;
+                return wxRICHTEXT_HITTEST_BEFORE|wxRICHTEXT_HITTEST_OUTSIDE;
             }
             else if (pt.x >= (linePos.x + lineSize.x))
             {
                 textPosition = lineRange.GetEnd();
-                return wxRICHTEXT_HITTEST_AFTER;
+                return wxRICHTEXT_HITTEST_AFTER|wxRICHTEXT_HITTEST_OUTSIDE;
             }
             else
             {
@@ -3900,9 +3921,11 @@ bool wxRichTextParagraph::FindWrapPosition(const wxRichTextRange& range, wxDC& d
         else
         {
             int spacePos = plainText.Find(wxT(' '), true);
-            if (spacePos != wxNOT_FOUND)
+            int tabPos = plainText.Find(wxT('\t'), true);
+            int pos = wxMax(spacePos, tabPos);
+            if (pos != wxNOT_FOUND)
             {
-                int positionsFromEndOfString = plainText.length() - spacePos - 1;
+                int positionsFromEndOfString = plainText.length() - pos - 1;
                 breakPosition = breakPosition - positionsFromEndOfString;
             }
         }
@@ -3950,7 +3973,7 @@ wxString wxRichTextParagraph::GetBulletText()
     {
         text = GetAttributes().GetBulletText();
     }
-    
+
     if (GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_OUTLINE)
     {
         // The outline style relies on the text being computed statically,
@@ -4144,6 +4167,9 @@ wxRichTextPlainText::wxRichTextPlainText(const wxString& text, wxRichTextObject*
 
 #define USE_KERNING_FIX 1
 
+// If insufficient tabs are defined, this is the tab width used
+#define WIDTH_FOR_DEFAULT_TABS 50
+
 /// Draw the item
 bool wxRichTextPlainText::Draw(wxDC& dc, const wxRichTextRange& range, const wxRichTextRange& selectionRange, const wxRect& rect, int descent, int WXUNUSED(style))
 {
@@ -4158,7 +4184,7 @@ bool wxRichTextPlainText::Draw(wxDC& dc, const wxRichTextRange& range, const wxR
     wxString str = m_text;
     wxString toRemove = wxRichTextLineBreakChar;
     str.Replace(toRemove, wxT(" "));
-    
+
     long len = range.GetLength();
     wxString stringChunk = str.Mid(range.GetStart() - offset, (size_t) len);
     if (textAttr.HasTextEffects() && (textAttr.GetTextEffects() & wxTEXT_ATTR_EFFECT_CAPITALS))
@@ -4310,7 +4336,14 @@ bool wxRichTextPlainText::DrawTabbedString(wxDC& dc, const wxTextAttrEx& attr, c
     else
     {
         dc.SetTextForeground(attr.GetTextColour());
-        dc.SetBackgroundMode(wxTRANSPARENT);
+
+        if (attr.HasFlag(wxTEXT_ATTR_BACKGROUND_COLOUR) && attr.GetBackgroundColour().IsOk())
+        {
+            dc.SetBackgroundMode(wxSOLID);
+            dc.SetTextBackground(attr.GetBackgroundColour());
+        }
+        else
+            dc.SetBackgroundMode(wxTRANSPARENT);
     }
 
     while (hasTabs)
@@ -4325,8 +4358,18 @@ bool wxRichTextPlainText::DrawTabbedString(wxDC& dc, const wxTextAttrEx& attr, c
         for (int i = 0; i < tabCount && not_found; ++i)
         {
             nextTabPos = tabArray.Item(i);
-            if (nextTabPos > tabPos)
+
+            // Find the next tab position.
+            // Even if we're at the end of the tab array, we must still draw the chunk.
+
+            if (nextTabPos > tabPos || (i == (tabCount - 1)))
             {
+                if (nextTabPos <= tabPos)
+                {
+                    int defaultTabWidth = ConvertTenthsMMToPixels(dc, WIDTH_FOR_DEFAULT_TABS);
+                    nextTabPos = tabPos + defaultTabWidth;
+                }
+
                 not_found = false;
                 if (selected)
                 {
@@ -4377,24 +4420,7 @@ bool wxRichTextPlainText::DrawTabbedString(wxDC& dc, const wxTextAttrEx& attr, c
 /// Lay the item out
 bool wxRichTextPlainText::Layout(wxDC& dc, const wxRect& WXUNUSED(rect), int WXUNUSED(style))
 {
-    wxRichTextParagraph* para = wxDynamicCast(GetParent(), wxRichTextParagraph);
-    wxASSERT (para != NULL);
-
-    wxTextAttrEx textAttr(para ? para->GetCombinedAttributes(GetAttributes()) : GetAttributes());
-
-    if (textAttr.GetFont().Ok())
-        dc.SetFont(textAttr.GetFont());
-
-    wxString str = m_text;    
-    if (textAttr.HasTextEffects() && (textAttr.GetTextEffects() & wxTEXT_ATTR_EFFECT_CAPITALS))
-        str.MakeUpper();
-
-    wxString toReplace = wxRichTextLineBreakChar;
-    str.Replace(toReplace, wxT(" "));
-
-    wxCoord w, h;
-    dc.GetTextExtent(str, & w, & h, & m_descent);
-    m_size = wxSize(w, dc.GetCharHeight());
+    GetRangeSize(GetRange(), m_size, m_descent, dc, 0, wxPoint(0, 0));
 
     return true;
 }
@@ -4428,7 +4454,7 @@ bool wxRichTextPlainText::GetRangeSize(const wxRichTextRange& range, wxSize& siz
 
     int startPos = range.GetStart() - GetRange().GetStart();
     long len = range.GetLength();
-    
+
     wxString str(m_text);
     wxString toReplace = wxRichTextLineBreakChar;
     str.Replace(toReplace, wxT(" "));
@@ -4469,12 +4495,23 @@ bool wxRichTextPlainText::GetRangeSize(const wxRichTextRange& range, wxSize& siz
             dc.GetTextExtent(stringFragment, & w, & h);
             width += w;
             int absoluteWidth = width + position.x;
+
             bool notFound = true;
             for (int i = 0; i < tabCount && notFound; ++i)
             {
                 nextTabPos = tabArray.Item(i);
-                if (nextTabPos > absoluteWidth)
+
+                // Find the next tab position.
+                // Even if we're at the end of the tab array, we must still process the chunk.
+
+                if (nextTabPos > absoluteWidth || (i == (tabCount - 1)))
                 {
+                    if (nextTabPos <= absoluteWidth)
+                    {
+                        int defaultTabWidth = ((wxRichTextPlainText*) this)->ConvertTenthsMMToPixels(dc, WIDTH_FOR_DEFAULT_TABS);
+                        nextTabPos = absoluteWidth + defaultTabWidth;
+                    }
+
                     notFound = false;
                     width = nextTabPos - position.x;
                 }
@@ -4493,7 +4530,7 @@ bool wxRichTextPlainText::GetRangeSize(const wxRichTextRange& range, wxSize& siz
 wxRichTextObject* wxRichTextPlainText::DoSplit(long pos)
 {
     long index = pos - GetRange().GetStart();
-    
+
     if (index < 0 || index >= (int) m_text.length())
         return NULL;
 
@@ -4507,7 +4544,7 @@ wxRichTextObject* wxRichTextPlainText::DoSplit(long pos)
 
     newObject->SetRange(wxRichTextRange(pos, GetRange().GetEnd()));
     GetRange().SetEnd(pos-1);
-    
+
     return newObject;
 }
 
@@ -4636,7 +4673,7 @@ wxRichTextBuffer::~wxRichTextBuffer()
 void wxRichTextBuffer::ResetAndClearCommands()
 {
     Reset();
-    
+
     GetCommandProcessor()->ClearCommands();
 
     Modify(false);
@@ -4730,7 +4767,8 @@ bool wxRichTextBuffer::InsertTextWithUndo(long pos, const wxString& text, wxRich
     wxTextAttrEx paraAttr;
     if (flags & wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE)
     {
-        paraAttr = GetStyleForNewParagraph(pos);
+        // Get appropriate paragraph style
+        paraAttr = GetStyleForNewParagraph(pos, false, false);
         if (!paraAttr.IsDefault())
             p = & paraAttr;
     }
@@ -4767,7 +4805,7 @@ bool wxRichTextBuffer::InsertNewlineWithUndo(long pos, wxRichTextCtrl* ctrl, int
     wxTextAttrEx paraAttr;
     if (flags & wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE)
     {
-        paraAttr = GetStyleForNewParagraph(pos);
+        paraAttr = GetStyleForNewParagraph(pos, false, true /* look for next paragraph style */);
         if (!paraAttr.IsDefault())
             p = & paraAttr;
     }
@@ -4831,16 +4869,16 @@ bool wxRichTextBuffer::InsertImageWithUndo(long pos, const wxRichTextImageBlock&
 /// Get the style that is appropriate for a new paragraph at this position.
 /// If the previous paragraph has a paragraph style name, look up the next-paragraph
 /// style.
-wxRichTextAttr wxRichTextBuffer::GetStyleForNewParagraph(long pos, bool caretPosition) const
+wxRichTextAttr wxRichTextBuffer::GetStyleForNewParagraph(long pos, bool caretPosition, bool lookUpNewParaStyle) const
 {
     wxRichTextParagraph* para = GetParagraphAtPosition(pos, caretPosition);
     if (para)
     {
         wxRichTextAttr attr;
         bool foundAttributes = false;
-        
+
         // Look for a matching paragraph style
-        if (!para->GetAttributes().GetParagraphStyleName().IsEmpty() && GetStyleSheet())
+        if (lookUpNewParaStyle && !para->GetAttributes().GetParagraphStyleName().IsEmpty() && GetStyleSheet())
         {
             wxRichTextParagraphStyleDefinition* paraDef = GetStyleSheet()->FindParagraphStyle(para->GetAttributes().GetParagraphStyleName());
             if (paraDef)
@@ -4854,7 +4892,7 @@ wxRichTextAttr wxRichTextBuffer::GetStyleForNewParagraph(long pos, bool caretPos
                         attr = nextParaDef->GetStyleMergedWithBase(GetStyleSheet());
                     }
                 }
-                
+
                 // If we didn't find the 'next style', use this style instead.
                 if (!foundAttributes)
                 {
@@ -4874,7 +4912,7 @@ wxRichTextAttr wxRichTextBuffer::GetStyleForNewParagraph(long pos, bool caretPos
                     (~ wxTEXT_ATTR_BACKGROUND_COLOUR) );
             attr.SetFlags(flags);
         }
-        
+
         // Now see if we need to number the paragraph.
         if (attr.HasBulletStyle())
         {
@@ -5639,7 +5677,7 @@ bool wxRichTextBuffer::RemoveEventHandler(wxEvtHandler* handler, bool deleteHand
         m_eventHandlers.Erase(node);
         if (deleteHandler)
             delete handler;
-        
+
         return true;
     }
     else
@@ -5674,17 +5712,17 @@ bool wxRichTextBuffer::SendEvent(wxEvent& event, bool sendToAll)
 bool wxRichTextBuffer::SetStyleSheetAndNotify(wxRichTextStyleSheet* sheet)
 {
     wxRichTextStyleSheet* oldSheet = GetStyleSheet();
-    
+
     wxWindowID id = wxID_ANY;
     if (GetRichTextCtrl())
         id = GetRichTextCtrl()->GetId();
-    
+
     wxRichTextEvent event(wxEVT_COMMAND_RICHTEXT_STYLESHEET_REPLACING, id);
     event.SetEventObject(GetRichTextCtrl());
     event.SetOldStyleSheet(oldSheet);
     event.SetNewStyleSheet(sheet);
     event.Allow();
-    
+
     if (SendEvent(event) && !event.IsAllowed())
     {
         if (sheet != oldSheet)
@@ -5735,26 +5773,26 @@ bool wxRichTextStdRenderer::DrawStandardBullet(wxRichTextParagraph* paragraph, w
     dc.SetFont(font);
 
     int charHeight = dc.GetCharHeight();
-                
+
     int bulletWidth = (int) (((float) charHeight) * wxRichTextBuffer::GetBulletProportion());
     int bulletHeight = bulletWidth;
 
     int x = rect.x;
-    
+
     // Calculate the top position of the character (as opposed to the whole line height)
     int y = rect.y + (rect.height - charHeight);
-    
+
     // Calculate where the bullet should be positioned
     y = y + (charHeight+1)/2 - (bulletHeight+1)/2;
-                
+
     // The margin between a bullet and text.
     int margin = paragraph->ConvertTenthsMMToPixels(dc, wxRichTextBuffer::GetBulletRightMargin());
-                
+
     if (bulletAttr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ALIGN_RIGHT)
         x = rect.x + rect.width - bulletWidth - margin;
     else if (bulletAttr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ALIGN_CENTRE)
         x = x + (rect.width)/2 - bulletWidth/2;
-                
+
     if (bulletAttr.GetBulletName() == wxT("standard/square"))
     {
         dc.DrawRectangle(x, y, bulletWidth, bulletHeight);
@@ -5766,7 +5804,7 @@ bool wxRichTextStdRenderer::DrawStandardBullet(wxRichTextParagraph* paragraph, w
         pts[1].x = x + bulletWidth/2;   pts[1].y = y;
         pts[2].x = x + bulletWidth;     pts[2].y = y + bulletHeight/2;
         pts[3].x = x + bulletWidth/2;   pts[3].y = y + bulletHeight;
-                    
+
         dc.DrawPolygon(4, pts);
     }
     else if (bulletAttr.GetBulletName() == wxT("standard/triangle"))
@@ -5775,14 +5813,14 @@ bool wxRichTextStdRenderer::DrawStandardBullet(wxRichTextParagraph* paragraph, w
         pts[0].x = x;                   pts[0].y = y;
         pts[1].x = x + bulletWidth;     pts[1].y = y + bulletHeight/2;
         pts[2].x = x;                   pts[2].y = y + bulletHeight;
-                    
+
         dc.DrawPolygon(3, pts);
     }
     else // "standard/circle", and catch-all
     {
         dc.DrawEllipse(x, y, bulletWidth, bulletHeight);
-    }                
+    }
+
     return true;
 }
 
@@ -5816,18 +5854,18 @@ bool wxRichTextStdRenderer::DrawTextBullet(wxRichTextParagraph* paragraph, wxDC&
         int x = rect.x;
 
         // Calculate the top position of the character (as opposed to the whole line height)
-        int y = rect.y + (rect.height - charHeight);    
+        int y = rect.y + (rect.height - charHeight);
 
         // The margin between a bullet and text.
         int margin = paragraph->ConvertTenthsMMToPixels(dc, wxRichTextBuffer::GetBulletRightMargin());
-                
+
         if (attr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ALIGN_RIGHT)
             x = (rect.x + rect.width) - tw - margin;
         else if (attr.GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_ALIGN_CENTRE)
             x = x + (rect.width)/2 - tw/2;
 
         dc.DrawText(text, x, y);
-        
+
         return true;
     }
     else
@@ -5994,7 +6032,7 @@ bool wxRichTextAction::Do()
                 wxSize clientSize = m_ctrl->GetClientSize();
                 wxPoint firstVisiblePt = m_ctrl->GetFirstVisiblePoint();
                 int lastY = firstVisiblePt.y + clientSize.y;
-                
+
                 wxRichTextParagraph* para = m_buffer->GetParagraphAtPosition(GetPosition());
                 wxRichTextObjectList::compatibility_iterator node = m_buffer->GetChildren().Find(para);
                 while (node)
@@ -6006,14 +6044,14 @@ bool wxRichTextAction::Do()
                         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);
                         }
@@ -6021,11 +6059,11 @@ bool wxRichTextAction::Do()
                         if (node2)
                             node2 = node2->GetNext();
                     }
-                
+
                     if (node)
                         node = node->GetNext();
                 }
-            }            
+            }
 #endif
 
             m_buffer->InsertFragment(GetPosition(), m_newParagraphs);
@@ -6041,27 +6079,27 @@ bool wxRichTextAction::Do()
             if (m_newParagraphs.GetPartialParagraph())
                 newCaretPosition --;
             else
-                if (m_newParagraphs.GetChildren().GetCount() > 0)
+                if (m_newParagraphs.GetChildren().GetCount() > 1)
                 {
                     wxRichTextObject* p = (wxRichTextObject*) m_newParagraphs.GetChildren().GetLast()->GetData();
                     if (p->GetRange().GetLength() == 1)
                         newCaretPosition --;
                 }
 
-            newCaretPosition = wxMin(newCaretPosition, (m_buffer->GetRange().GetEnd()-1));            
+            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 */);
-            
+
             wxRichTextEvent cmdEvent(
                 wxEVT_COMMAND_RICHTEXT_CONTENT_INSERTED,
                 m_ctrl ? m_ctrl->GetId() : -1);
             cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
             cmdEvent.SetRange(GetRange());
             cmdEvent.SetPosition(GetRange().GetStart());
-            
+
             m_buffer->SendEvent(cmdEvent);
 
             break;
@@ -6080,7 +6118,7 @@ bool wxRichTextAction::Do()
             cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
             cmdEvent.SetRange(GetRange());
             cmdEvent.SetPosition(GetRange().GetStart());
-            
+
             m_buffer->SendEvent(cmdEvent);
 
             break;
@@ -6098,7 +6136,7 @@ bool wxRichTextAction::Do()
             cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
             cmdEvent.SetRange(GetRange());
             cmdEvent.SetPosition(GetRange().GetStart());
-            
+
             m_buffer->SendEvent(cmdEvent);
 
             break;
@@ -6123,7 +6161,7 @@ bool wxRichTextAction::Undo()
             m_buffer->Invalidate(wxRichTextRange(GetRange().GetStart(), GetRange().GetStart()));
 
             long newCaretPosition = GetPosition() - 1;
-            
+
             UpdateAppearance(newCaretPosition, true /* send update event */);
 
             wxRichTextEvent cmdEvent(
@@ -6132,7 +6170,7 @@ bool wxRichTextAction::Undo()
             cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
             cmdEvent.SetRange(GetRange());
             cmdEvent.SetPosition(GetRange().GetStart());
-            
+
             m_buffer->SendEvent(cmdEvent);
 
             break;
@@ -6151,7 +6189,7 @@ bool wxRichTextAction::Undo()
             cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
             cmdEvent.SetRange(GetRange());
             cmdEvent.SetPosition(GetRange().GetStart());
-            
+
             m_buffer->SendEvent(cmdEvent);
 
             break;
@@ -6169,7 +6207,7 @@ bool wxRichTextAction::Undo()
             cmdEvent.SetEventObject(m_ctrl ? (wxObject*) m_ctrl : (wxObject*) m_buffer);
             cmdEvent.SetRange(GetRange());
             cmdEvent.SetPosition(GetRange().GetStart());
-            
+
             m_buffer->SendEvent(cmdEvent);
 
             break;
@@ -6191,30 +6229,30 @@ void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent
         {
             m_ctrl->LayoutContent();
             m_ctrl->PositionCaret();
-            
+
 #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)
             {
                 size_t i;
-                
+
                 wxSize clientSize = m_ctrl->GetClientSize();
                 wxPoint firstVisiblePt = m_ctrl->GetFirstVisiblePoint();
-                
+
                 // Start/end positions
                 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();
 
                 // 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());
                 wxRichTextObjectList::compatibility_iterator node = m_buffer->GetChildren().Find(para);
                 while (node)
@@ -6226,10 +6264,10 @@ void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent
                         wxRichTextLine* line = node2->GetData();
                         wxPoint pt = line->GetAbsolutePosition();
                         wxRichTextRange range = line->GetAbsoluteRange();
-                        
+
                         // we want to find the first line that is in the same position
                         // as before. This will mean we're at the end of the changed text.
-                        
+
                         if (pt.y > lastY) // going past the end of the window, no more info
                         {
                             node2 = wxRichTextLineList::compatibility_iterator();
@@ -6243,7 +6281,7 @@ void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent
                                 foundStart = true;
                             }
 
-                            // search for this line being at the same position as before                            
+                            // search for this line being at the same position as before
                             for (i = 0; i < optimizationLineCharPositions->GetCount(); i++)
                             {
                                 if (((*optimizationLineCharPositions)[i] + positionOffset == range.GetStart()) &&
@@ -6257,18 +6295,18 @@ void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent
                                     node = wxRichTextObjectList::compatibility_iterator();
 
                                     break;
-                                }                    
+                                }
                             }
                         }
 
                         if (node2)
                             node2 = node2->GetNext();
                     }
-                
+
                     if (node)
                         node = node->GetNext();
                 }
-                
+
                 if (!foundStart)
                     firstY = firstVisiblePt.y;
                 if (!foundEnd)
@@ -6276,12 +6314,12 @@ void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent
 
                 wxRect rect(firstVisiblePt.x, firstY, firstVisiblePt.x + 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            
+            else
 #endif
                 m_ctrl->Refresh(false);
 
@@ -6835,9 +6873,9 @@ bool wxRichTextApplyStyle(wxTextAttrEx& destStyle, const wxTextAttrEx& style)
 
         int srcBits = style.GetTextEffects();
         int srcFlags = style.GetTextEffectFlags();
-            
+
         wxRichTextCombineBitlists(destBits, srcBits, destFlags, srcFlags);
-            
+
         destStyle.SetTextEffects(destBits);
         destStyle.SetTextEffectFlags(destFlags);
     }
@@ -7071,9 +7109,9 @@ bool wxRichTextApplyStyle(wxTextAttrEx& destStyle, const wxRichTextAttr& style,
 
             int srcBits = style.GetTextEffects();
             int srcFlags = style.GetTextEffectFlags();
-            
+
             wxRichTextCombineBitlists(destBits, srcBits, destFlags, srcFlags);
-            
+
             destStyle.SetTextEffects(destBits);
             destStyle.SetTextEffectFlags(destFlags);
         }
@@ -7088,23 +7126,34 @@ bool wxRichTextApplyStyle(wxTextAttrEx& destStyle, const wxRichTextAttr& style,
     return true;
 }
 
+// Remove attributes
+bool wxRichTextRemoveStyle(wxTextAttrEx& destStyle, const wxRichTextAttr& style)
+{
+    int flags = style.GetFlags();
+    int destFlags = destStyle.GetFlags();
+
+    destStyle.SetFlags(destFlags & ~flags);
+
+    return true;
+}
+
 /// Combine two bitlists, specifying the bits of interest with separate flags.
 bool wxRichTextCombineBitlists(int& valueA, int valueB, int& flagsA, int flagsB)
 {
     // We want to apply B's bits to A, taking into account each's flags which indicate which bits
     // are to be taken into account. A zero in B's bits should reset that bit in A but only if B's flags
     // indicate it.
-    
+
     // First, reset the 0 bits from B. We make a mask so we're only dealing with B's zero
     // bits at this point, ignoring any 1 bits in B or 0 bits in B that are not relevant.
     int valueA2 = ~(~valueB & flagsB) & valueA;
-    
+
     // Now combine the 1 bits.
     int valueA3 = (valueB & flagsB) | valueA2;
-    
+
     valueA = valueA3;
     flagsA = (flagsA | flagsB);
-    
+
     return true;
 }
 
@@ -7126,7 +7175,7 @@ bool wxRichTextSplitParaCharStyles(const wxTextAttrEx& style, wxTextAttrEx& parS
 
     wxRichTextApplyStyle(charStyle, defaultCharStyle1);
     wxRichTextApplyStyle(parStyle, defaultParaStyle1);
-    
+
     return true;
 }
 
@@ -7282,7 +7331,7 @@ void wxRichTextAttr::Copy(const wxRichTextAttr& attr)
 
 // operators
 void wxRichTextAttr::operator= (const wxRichTextAttr& attr)
-{    
+{
     Copy(attr);
 }
 
@@ -7390,7 +7439,7 @@ bool wxRichTextAttr::operator== (const wxRichTextAttr& attr) const
             GetFontWeight() == attr.GetFontWeight() &&
             GetFontUnderlined() == attr.GetFontUnderlined() &&
             GetFontFaceName() == attr.GetFontFaceName() &&
-            
+
             GetURL() == attr.GetURL();
 }
 
@@ -7423,14 +7472,14 @@ wxRichTextAttr wxRichTextAttr::Combine(const wxRichTextAttr& style, const wxRich
 {
     wxRichTextAttr destStyle = (*this);
     destStyle.Apply(style, compareWith);
-    
+
     return destStyle;
 }
 
 bool wxRichTextAttr::Apply(const wxRichTextAttr& style, const wxRichTextAttr* compareWith)
 {
     wxRichTextAttr& destStyle = (*this);
-    
+
     if (style.HasFontWeight())
     {
         if (!(compareWith && compareWith->HasFontWeight() && compareWith->GetFontWeight() == style.GetFontWeight()))
@@ -7582,9 +7631,9 @@ bool wxRichTextAttr::Apply(const wxRichTextAttr& style, const wxRichTextAttr* co
 
             int srcBits = style.GetTextEffects();
             int srcFlags = style.GetTextEffectFlags();
-            
+
             wxRichTextCombineBitlists(destBits, srcBits, destFlags, srcFlags);
-            
+
             destStyle.SetTextEffects(destBits);
             destStyle.SetTextEffectFlags(destFlags);
         }
@@ -7931,7 +7980,7 @@ bool wxRichTextPlainTextHandler::DoSaveFile(wxRichTextBuffer *buffer, wxOutputSt
 
     wxString newLine = wxRichTextLineBreakChar;
     text.Replace(newLine, wxT("\n"));
-    
+
     wxCharBuffer buf = text.ToAscii();
 
     stream.Write((const char*) buf, text.length());
@@ -8152,8 +8201,8 @@ bool wxRichTextImageBlock::ReadHex(wxInputStream& stream, int length, int imageT
     int i;
     for (i = 0; i < dataSize; i ++)
     {
-        str[0] = stream.GetC();
-        str[1] = stream.GetC();
+        str[0] = (char)stream.GetC();
+        str[1] = (char)stream.GetC();
 
         m_data[i] = (unsigned char)wxHexToDec(str);
     }