]> git.saurik.com Git - wxWidgets.git/blobdiff - src/richtext/richtextctrl.cpp
re-enable drawing our own resize grip with GTK3, themes can (and do) disable the...
[wxWidgets.git] / src / richtext / richtextctrl.cpp
index c4eaf87a049f5f10bde8b87bc8e02e43787ebcdf..9d98c4fe644e4540ac1ba0e20ca20ca7eb6b927b 100644 (file)
@@ -65,6 +65,7 @@ wxDEFINE_EVENT( wxEVT_COMMAND_RICHTEXT_STYLESHEET_CHANGED, wxRichTextEvent );
 wxDEFINE_EVENT( wxEVT_COMMAND_RICHTEXT_CONTENT_INSERTED, wxRichTextEvent );
 wxDEFINE_EVENT( wxEVT_COMMAND_RICHTEXT_CONTENT_DELETED, wxRichTextEvent );
 wxDEFINE_EVENT( wxEVT_COMMAND_RICHTEXT_STYLE_CHANGED, wxRichTextEvent );
+wxDEFINE_EVENT( wxEVT_COMMAND_RICHTEXT_PROPERTIES_CHANGED, wxRichTextEvent );
 wxDEFINE_EVENT( wxEVT_COMMAND_RICHTEXT_SELECTION_CHANGED, wxRichTextEvent );
 wxDEFINE_EVENT( wxEVT_COMMAND_RICHTEXT_BUFFER_RESET, wxRichTextEvent );
 wxDEFINE_EVENT( wxEVT_COMMAND_RICHTEXT_FOCUS_OBJECT_CHANGED, wxRichTextEvent );
@@ -231,10 +232,6 @@ wxRichTextCtrl::wxRichTextCtrl(wxWindow* parent,
 {
     Init();
     Create(parent, id, value, pos, size, style, validator, name);
-
-#if wxUSE_DRAG_AND_DROP
-    SetDropTarget(new wxRichTextDropTarget(this));
-#endif
 }
 
 /// Creation
@@ -267,7 +264,6 @@ bool wxRichTextCtrl::Create( wxWindow* parent, wxWindowID id, const wxString& va
     attributes.SetLineSpacing(10);
     attributes.SetParagraphSpacingAfter(10);
     attributes.SetParagraphSpacingBefore(0);
-
     SetBasicStyle(attributes);
 
     int margin = 5;
@@ -334,6 +330,10 @@ bool wxRichTextCtrl::Create( wxWindow* parent, wxWindowID id, const wxString& va
     m_contextMenu->AppendSeparator();
     m_contextMenu->Append(wxID_RICHTEXT_PROPERTIES1, _("&Properties"));
 
+#if wxUSE_DRAG_AND_DROP
+    SetDropTarget(new wxRichTextDropTarget(this));
+#endif
+
     return true;
 }
 
@@ -355,6 +355,7 @@ void wxRichTextCtrl::Init()
     m_selectionAnchorObject = NULL;
     m_selectionState = wxRichTextCtrlSelectionState_Normal;
     m_editable = true;
+    m_verticalScrollbarEnabled = true;
     m_caretAtLineStart = false;
     m_dragging = false;
 #if wxUSE_DRAG_AND_DROP
@@ -366,6 +367,7 @@ void wxRichTextCtrl::Init()
     m_delayedLayoutThreshold = wxRICHTEXT_DEFAULT_DELAYED_LAYOUT_THRESHOLD;
     m_caretPositionForDefaultStyle = -2;
     m_focusObject = & m_buffer;
+    m_scale = 1.0;
 }
 
 void wxRichTextCtrl::DoThaw()
@@ -438,16 +440,21 @@ void wxRichTextCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
         // Paint the background
         PaintBackground(dc);
 
-        // wxRect drawingArea(GetLogicalPoint(wxPoint(0, 0)), GetClientSize());
-
         wxRect drawingArea(GetUpdateRegion().GetBox());
-        drawingArea.SetPosition(GetLogicalPoint(drawingArea.GetPosition()));
+        drawingArea.SetPosition(GetUnscaledPoint(GetLogicalPoint(drawingArea.GetPosition())));
+        drawingArea.SetSize(GetUnscaledSize(drawingArea.GetSize()));
 
-        wxRect availableSpace(GetClientSize());
+        wxRect availableSpace(GetUnscaledSize(GetClientSize()));
+        wxRichTextDrawingContext context(& GetBuffer());
         if (GetBuffer().IsDirty())
         {
-            GetBuffer().Layout(dc, availableSpace, wxRICHTEXT_FIXED_WIDTH|wxRICHTEXT_VARIABLE_HEIGHT);
+            dc.SetUserScale(GetScale(), GetScale());
+
+            GetBuffer().Layout(dc, context, availableSpace, availableSpace, wxRICHTEXT_FIXED_WIDTH|wxRICHTEXT_VARIABLE_HEIGHT);
             GetBuffer().Invalidate(wxRICHTEXT_NONE);
+
+            dc.SetUserScale(1.0, 1.0);
+
             SetupScrollbars();
         }
 
@@ -456,14 +463,19 @@ void wxRichTextCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
         clipRect.y += GetBuffer().GetTopMargin();
         clipRect.width -= (GetBuffer().GetLeftMargin() + GetBuffer().GetRightMargin());
         clipRect.height -= (GetBuffer().GetTopMargin() + GetBuffer().GetBottomMargin());
+
+        clipRect = GetScaledRect(clipRect);
         clipRect.SetPosition(GetLogicalPoint(clipRect.GetPosition()));
+
         dc.SetClippingRegion(clipRect);
 
         int flags = 0;
         if ((GetExtraStyle() & wxRICHTEXT_EX_NO_GUIDELINES) == 0)
             flags |= wxRICHTEXT_DRAW_GUIDELINES;
 
-        GetBuffer().Draw(dc, GetBuffer().GetOwnRange(), GetSelection(), drawingArea, 0 /* descent */, flags);
+        dc.SetUserScale(GetScale(), GetScale());
+
+        GetBuffer().Draw(dc, context, GetBuffer().GetOwnRange(), GetSelection(), drawingArea, 0 /* descent */, flags);
 
         dc.DestroyClippingRegion();
 
@@ -477,6 +489,8 @@ void wxRichTextCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
             ((wxRichTextCaret*) GetCaret())->DoDraw(& dc);
         }
 #endif
+
+        dc.SetUserScale(1.0, 1.0);
     }
 
 #if !wxRICHTEXT_USE_OWN_CARET
@@ -572,7 +586,8 @@ void wxRichTextCtrl::OnLeftClick(wxMouseEvent& event)
     long position = 0;
     wxRichTextObject* hitObj = NULL;
     wxRichTextObject* contextObj = NULL;
-    int hit = GetBuffer().HitTest(dc, event.GetLogicalPosition(dc), position, & hitObj, & contextObj);
+    wxRichTextDrawingContext context(& GetBuffer());
+    int hit = GetBuffer().HitTest(dc, context, GetUnscaledPoint(event.GetLogicalPosition(dc)), position, & hitObj, & contextObj, wxRICHTEXT_HITTEST_HONOUR_ATOMIC);
 
 #if wxUSE_DRAG_AND_DROP
     // If there's no selection, or we're not inside it, this isn't an attempt to initiate Drag'n'Drop
@@ -638,8 +653,9 @@ void wxRichTextCtrl::OnLeftUp(wxMouseEvent& event)
         wxPoint logicalPt = event.GetLogicalPosition(dc);
         wxRichTextObject* hitObj = NULL;
         wxRichTextObject* contextObj = NULL;
+        wxRichTextDrawingContext context(& GetBuffer());
         // Only get objects at this level, not nested, because otherwise we couldn't swipe text at a single level.
-        int hit = GetFocusObject()->HitTest(dc, logicalPt, position, & hitObj, & contextObj, wxRICHTEXT_HITTEST_NO_NESTED_OBJECTS);
+        int hit = GetFocusObject()->HitTest(dc, context, GetUnscaledPoint(logicalPt), position, & hitObj, & contextObj, wxRICHTEXT_HITTEST_NO_NESTED_OBJECTS|wxRICHTEXT_HITTEST_HONOUR_ATOMIC);
 
 #if wxUSE_DRAG_AND_DROP
         if (m_preDrag)
@@ -651,7 +667,7 @@ void wxRichTextCtrl::OnLeftUp(wxMouseEvent& event)
             long position = 0;
             wxRichTextObject* hitObj = NULL;
             wxRichTextObject* contextObj = NULL;
-            int hit = GetBuffer().HitTest(dc, event.GetLogicalPosition(dc), position, & hitObj, & contextObj);
+            int hit = GetBuffer().HitTest(dc, context, GetUnscaledPoint(event.GetLogicalPosition(dc)), position, & hitObj, & contextObj, wxRICHTEXT_HITTEST_HONOUR_ATOMIC);
             wxRichTextParagraphLayoutBox* oldFocusObject = GetFocusObject();
             wxRichTextParagraphLayoutBox* container = wxDynamicCast(contextObj, wxRichTextParagraphLayoutBox);
             if (container && container != GetFocusObject() && container->AcceptsFocus())
@@ -736,12 +752,17 @@ void wxRichTextCtrl::OnLeftUp(wxMouseEvent& event)
 void wxRichTextCtrl::OnMoveMouse(wxMouseEvent& event)
 {
 #if wxUSE_DRAG_AND_DROP
-    // See if we're starting Drag'n'Drop
-    if (m_preDrag)
+    size_t distance = 0;
+    if (m_preDrag || m_dragging)
     {
         int x = m_dragStartPoint.x - event.GetPosition().x;
         int y = m_dragStartPoint.y - event.GetPosition().y;
-        size_t distance = abs(x) + abs(y);
+        distance = abs(x) + abs(y);
+    }
+
+    // See if we're starting Drag'n'Drop
+    if (m_preDrag)
+    {
 #if wxUSE_DATETIME
         wxTimeSpan diff = wxDateTime::UNow() - m_dragStartTime;
 #endif
@@ -822,7 +843,8 @@ void wxRichTextCtrl::OnMoveMouse(wxMouseEvent& event)
         flags = wxRICHTEXT_HITTEST_NO_NESTED_OBJECTS;
         container = GetFocusObject();
     }
-    int hit = container->HitTest(dc, logicalPt, position, & hitObj, & contextObj, flags);
+    wxRichTextDrawingContext context(& GetBuffer());
+    int hit = container->HitTest(dc, context, GetUnscaledPoint(logicalPt), position, & hitObj, & contextObj, flags);
 
     // See if we need to change the cursor
 
@@ -830,18 +852,8 @@ void wxRichTextCtrl::OnMoveMouse(wxMouseEvent& event)
         if (hit != wxRICHTEXT_HITTEST_NONE && !(hit & wxRICHTEXT_HITTEST_OUTSIDE) && hitObj)
         {
             wxRichTextParagraphLayoutBox* actualContainer = wxDynamicCast(contextObj, wxRichTextParagraphLayoutBox);
-            wxRichTextAttr attr;
-            if (actualContainer && GetStyle(position, attr, actualContainer))
-            {
-                if (attr.HasFlag(wxTEXT_ATTR_URL))
-                {
-                    SetCursor(m_urlCursor);
-                }
-                else if (!attr.HasFlag(wxTEXT_ATTR_URL))
-                {
-                    SetCursor(m_textCursor);
-                }
-            }
+            if (actualContainer)
+                ProcessMouseMovement(actualContainer, hitObj, position, logicalPt);
         }
         else
             SetCursor(m_textCursor);
@@ -856,6 +868,7 @@ void wxRichTextCtrl::OnMoveMouse(wxMouseEvent& event)
     if (m_dragging
 #if wxUSE_DRAG_AND_DROP
         && !m_preDrag
+        && (distance > 4)
 #endif
         )
     {
@@ -866,7 +879,7 @@ void wxRichTextCtrl::OnMoveMouse(wxMouseEvent& event)
         // Check for dragging across multiple containers
         long position2 = 0;
         wxRichTextObject* hitObj2 = NULL, *contextObj2 = NULL;
-        int hit2 = GetBuffer().HitTest(dc, logicalPt, position2, & hitObj2, & contextObj2, 0);
+        int hit2 = GetBuffer().HitTest(dc, context, GetUnscaledPoint(logicalPt), position2, & hitObj2, & contextObj2, 0);
         if (hit2 != wxRICHTEXT_HITTEST_NONE && !(hit2 & wxRICHTEXT_HITTEST_OUTSIDE) && hitObj2 && hitObj != hitObj2)
         {
             // See if we can find a common ancestor
@@ -933,10 +946,10 @@ void wxRichTextCtrl::OnMoveMouse(wxMouseEvent& event)
     if (hitObj && m_dragging && hit != wxRICHTEXT_HITTEST_NONE && m_selectionState == wxRichTextCtrlSelectionState_Normal
 #if wxUSE_DRAG_AND_DROP
         && !m_preDrag
+        && (distance > 4)
 #endif
         )
     {
-        // TODO: test closeness
         SetCaretPositionAfterClick(container, position, hit, true /* extend selection */);
     }
 }
@@ -954,7 +967,8 @@ void wxRichTextCtrl::OnRightClick(wxMouseEvent& event)
     wxPoint logicalPt = event.GetLogicalPosition(dc);
     wxRichTextObject* hitObj = NULL;
     wxRichTextObject* contextObj = NULL;
-    int hit = GetFocusObject()->HitTest(dc, logicalPt, position, & hitObj, & contextObj);
+    wxRichTextDrawingContext context(& GetBuffer());
+    int hit = GetFocusObject()->HitTest(dc, context, GetUnscaledPoint(logicalPt), position, & hitObj, & contextObj, wxRICHTEXT_HITTEST_HONOUR_ATOMIC);
 
     if (hitObj && hitObj->GetContainer() != GetFocusObject())
     {
@@ -1116,53 +1130,8 @@ void wxRichTextCtrl::OnChar(wxKeyEvent& event)
         // Must process this before translation, otherwise it's translated into a WXK_DELETE event.
         if (event.CmdDown() && event.GetKeyCode() == WXK_BACK)
         {
-            BeginBatchUndo(_("Delete Text"));
-
-            long newPos = m_caretPosition;
-
-            bool processed = DeleteSelectedContent(& newPos);
-
-            // Submit range in character positions, which are greater than caret positions,
-            // so subtract 1 for deleted character and add 1 for conversion to character position.
-            if (newPos > -1)
-            {
-                if (event.CmdDown())
-                {
-                    long pos = wxRichTextCtrl::FindNextWordPosition(-1);
-                    if (pos < newPos)
-                    {
-                        GetFocusObject()->DeleteRangeWithUndo(wxRichTextRange(pos+1, newPos), this, & GetBuffer());
-                        processed = true;
-                    }
-                }
-
-                if (!processed)
-                    GetFocusObject()->DeleteRangeWithUndo(wxRichTextRange(newPos, newPos), this, & GetBuffer());
-            }
-
-            EndBatchUndo();
-
-            if (GetLastPosition() == -1)
-            {
-                GetFocusObject()->Reset();
-
-                m_caretPosition = -1;
-                PositionCaret();
-                SetDefaultStyleToCursorStyle();
-            }
-
-            ScrollIntoView(m_caretPosition, WXK_LEFT);
-
-            wxRichTextEvent cmdEvent(
-                wxEVT_COMMAND_RICHTEXT_DELETE,
-                GetId());
-            cmdEvent.SetEventObject(this);
-            cmdEvent.SetFlags(flags);
-            cmdEvent.SetPosition(m_caretPosition+1);
-            cmdEvent.SetContainer(GetFocusObject());
-            GetEventHandler()->ProcessEvent(cmdEvent);
-
-            Update();
+            if (!ProcessBackKey(event, flags))
+                return;
         }
         else
             event.Skip();
@@ -1180,10 +1149,18 @@ void wxRichTextCtrl::OnChar(wxKeyEvent& event)
 
     if (event.GetKeyCode() == WXK_RETURN)
     {
-        BeginBatchUndo(_("Insert Text"));
+        if (!CanInsertContent(* GetFocusObject(), m_caretPosition+1))
+            return;
 
         long newPos = m_caretPosition;
 
+        if (HasSelection() && !CanDeleteRange(* GetFocusObject(), GetSelectionRange()))
+        {
+            return;
+        }
+
+        BeginBatchUndo(_("Insert Text"));
+
         DeleteSelectedContent(& newPos);
 
         if (event.ShiftDown())
@@ -1197,6 +1174,14 @@ void wxRichTextCtrl::OnChar(wxKeyEvent& event)
         else
             GetFocusObject()->InsertNewlineWithUndo(& GetBuffer(), newPos+1, this, wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE|wxRICHTEXT_INSERT_INTERACTIVE);
 
+        // Automatically renumber list
+        bool isNumberedList = false;
+        wxRichTextRange numberedListRange = FindRangeForList(newPos+1, isNumberedList);
+        if (isNumberedList && numberedListRange != wxRichTextRange(-1, -1))
+        {
+            NumberList(numberedListRange, NULL, wxRICHTEXT_SETSTYLE_RENUMBER|wxRICHTEXT_SETSTYLE_WITH_UNDO);
+        }
+
         EndBatchUndo();
         SetDefaultStyleToCursorStyle();
 
@@ -1222,62 +1207,25 @@ void wxRichTextCtrl::OnChar(wxKeyEvent& event)
     }
     else if (event.GetKeyCode() == WXK_BACK)
     {
-        BeginBatchUndo(_("Delete Text"));
-
+        ProcessBackKey(event, flags);
+    }
+    else if (event.GetKeyCode() == WXK_DELETE)
+    {
         long newPos = m_caretPosition;
 
-        bool processed = DeleteSelectedContent(& newPos);
-
-        // Submit range in character positions, which are greater than caret positions,
-        // so subtract 1 for deleted character and add 1 for conversion to character position.
-        if (newPos > -1)
-        {
-            if (event.CmdDown())
-            {
-                long pos = wxRichTextCtrl::FindNextWordPosition(-1);
-                if (pos < newPos)
-                {
-                    GetFocusObject()->DeleteRangeWithUndo(wxRichTextRange(pos+1, newPos), this, & GetBuffer());
-                    processed = true;
-                }
-            }
-
-            if (!processed)
-                GetFocusObject()->DeleteRangeWithUndo(wxRichTextRange(newPos, newPos), this, & GetBuffer());
-        }
-
-        EndBatchUndo();
-
-        if (GetLastPosition() == -1)
+        if (HasSelection() && !CanDeleteRange(* GetFocusObject(), GetSelectionRange()))
         {
-            GetFocusObject()->Reset();
-
-            m_caretPosition = -1;
-            PositionCaret();
-            SetDefaultStyleToCursorStyle();
+            return;
         }
 
-        ScrollIntoView(m_caretPosition, WXK_LEFT);
-
-        wxRichTextEvent cmdEvent(
-            wxEVT_COMMAND_RICHTEXT_DELETE,
-            GetId());
-        cmdEvent.SetEventObject(this);
-        cmdEvent.SetFlags(flags);
-        cmdEvent.SetPosition(m_caretPosition+1);
-        cmdEvent.SetContainer(GetFocusObject());
-        GetEventHandler()->ProcessEvent(cmdEvent);
-
-        Update();
-    }
-    else if (event.GetKeyCode() == WXK_DELETE)
-    {
         BeginBatchUndo(_("Delete Text"));
 
-        long newPos = m_caretPosition;
-
         bool processed = DeleteSelectedContent(& newPos);
 
+        int deletions = 0;
+        if (processed)
+            deletions ++;
+
         // Submit range in character positions, which are greater than caret positions,
         if (newPos < GetFocusObject()->GetOwnRange().GetEnd()+1)
         {
@@ -1286,13 +1234,25 @@ void wxRichTextCtrl::OnChar(wxKeyEvent& event)
                 long pos = wxRichTextCtrl::FindNextWordPosition(1);
                 if (pos != -1 && (pos > newPos))
                 {
-                    GetFocusObject()->DeleteRangeWithUndo(wxRichTextRange(newPos+1, pos), this, & GetBuffer());
+                    wxRichTextRange range(newPos+1, pos);
+                    if (CanDeleteRange(* GetFocusObject(), range.FromInternal()))
+                    {
+                        GetFocusObject()->DeleteRangeWithUndo(range, this, & GetBuffer());
+                        deletions ++;
+                    }
                     processed = true;
                 }
             }
 
             if (!processed && newPos < (GetLastPosition()-1))
-                GetFocusObject()->DeleteRangeWithUndo(wxRichTextRange(newPos+1, newPos+1), this, & GetBuffer());
+            {
+                wxRichTextRange range(newPos+1, newPos+1);
+                if (CanDeleteRange(* GetFocusObject(), range.FromInternal()))
+                {
+                    GetFocusObject()->DeleteRangeWithUndo(range, this, & GetBuffer());
+                    deletions ++;
+                }
+            }
         }
 
         EndBatchUndo();
@@ -1308,14 +1268,17 @@ void wxRichTextCtrl::OnChar(wxKeyEvent& event)
 
         ScrollIntoView(m_caretPosition, WXK_LEFT);
 
-        wxRichTextEvent cmdEvent(
-            wxEVT_COMMAND_RICHTEXT_DELETE,
-            GetId());
-        cmdEvent.SetEventObject(this);
-        cmdEvent.SetFlags(flags);
-        cmdEvent.SetPosition(m_caretPosition+1);
-        cmdEvent.SetContainer(GetFocusObject());
-        GetEventHandler()->ProcessEvent(cmdEvent);
+        // Always send this event; wxEVT_COMMAND_RICHTEXT_CONTENT_DELETED will be sent only if there is an actual deletion.
+        {
+            wxRichTextEvent cmdEvent(
+                wxEVT_COMMAND_RICHTEXT_DELETE,
+                GetId());
+            cmdEvent.SetEventObject(this);
+            cmdEvent.SetFlags(flags);
+            cmdEvent.SetPosition(m_caretPosition+1);
+            cmdEvent.SetContainer(GetFocusObject());
+            GetEventHandler()->ProcessEvent(cmdEvent);
+        }
 
         Update();
     }
@@ -1380,6 +1343,12 @@ void wxRichTextCtrl::OnChar(wxKeyEvent& event)
                     }
                 }
 
+                if (!CanInsertContent(* GetFocusObject(), m_caretPosition+1))
+                    return;
+
+                if (HasSelection() && !CanDeleteRange(* GetFocusObject(), GetSelectionRange()))
+                    return;
+
                 BeginBatchUndo(_("Insert Text"));
 
                 long newPos = m_caretPosition;
@@ -1406,6 +1375,141 @@ void wxRichTextCtrl::OnChar(wxKeyEvent& event)
     }
 }
 
+bool wxRichTextCtrl::ProcessMouseMovement(wxRichTextParagraphLayoutBox* container, wxRichTextObject* WXUNUSED(obj), long position, const wxPoint& WXUNUSED(pos))
+{
+    wxRichTextAttr attr;
+    if (container && GetStyle(position, attr, container))
+    {
+        if (attr.HasFlag(wxTEXT_ATTR_URL))
+        {
+            SetCursor(m_urlCursor);
+        }
+        else if (!attr.HasFlag(wxTEXT_ATTR_URL))
+        {
+            SetCursor(m_textCursor);
+        }
+        return true;
+    }
+    else
+        return false;
+}
+
+// Processes the back key
+bool wxRichTextCtrl::ProcessBackKey(wxKeyEvent& event, int flags)
+{
+    if (!IsEditable())
+    {
+        return false;
+    }
+
+    if (HasSelection() && !CanDeleteRange(* GetFocusObject(), GetSelectionRange()))
+    {
+        return false;
+    }
+
+    wxRichTextParagraph* para = GetFocusObject()->GetParagraphAtPosition(m_caretPosition, true);
+
+    // If we're at the start of a list item with a bullet, let's 'delete' the bullet, i.e.
+    // make it a continuation paragraph.
+    if (!HasSelection() && para && ((m_caretPosition+1) == para->GetRange().GetStart()) &&
+        para->GetAttributes().HasBulletStyle() && (para->GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_CONTINUATION) == 0)
+    {
+        wxRichTextParagraph* newPara = wxDynamicCast(para->Clone(), wxRichTextParagraph);
+        newPara->GetAttributes().SetBulletStyle(newPara->GetAttributes().GetBulletStyle() | wxTEXT_ATTR_BULLET_STYLE_CONTINUATION);
+
+        wxRichTextAction* action = new wxRichTextAction(NULL, _("Remove Bullet"), wxRICHTEXT_CHANGE_STYLE, & GetBuffer(), GetFocusObject(), this);
+        action->SetRange(newPara->GetRange());
+        action->SetPosition(GetCaretPosition());
+        action->GetNewParagraphs().AppendChild(newPara);
+        // Also store the old ones for Undo
+        action->GetOldParagraphs().AppendChild(new wxRichTextParagraph(*para));
+
+        GetBuffer().Invalidate(para->GetRange());
+        GetBuffer().SubmitAction(action);
+
+        // Automatically renumber list
+        bool isNumberedList = false;
+        wxRichTextRange numberedListRange = FindRangeForList(m_caretPosition, isNumberedList);
+        if (isNumberedList && numberedListRange != wxRichTextRange(-1, -1))
+        {
+            NumberList(numberedListRange, NULL, wxRICHTEXT_SETSTYLE_RENUMBER|wxRICHTEXT_SETSTYLE_WITH_UNDO);
+        }
+
+        Update();
+    }
+    else
+    {
+        BeginBatchUndo(_("Delete Text"));
+
+        long newPos = m_caretPosition;
+
+        bool processed = DeleteSelectedContent(& newPos);
+
+        int deletions = 0;
+        if (processed)
+            deletions ++;
+
+        // Submit range in character positions, which are greater than caret positions,
+        // so subtract 1 for deleted character and add 1 for conversion to character position.
+        if (newPos > -1)
+        {
+            if (event.CmdDown())
+            {
+                long pos = wxRichTextCtrl::FindNextWordPosition(-1);
+                if (pos < newPos)
+                {
+                    wxRichTextRange range(pos+1, newPos);
+                    if (CanDeleteRange(* GetFocusObject(), range.FromInternal()))
+                    {
+                        GetFocusObject()->DeleteRangeWithUndo(range, this, & GetBuffer());
+                        deletions ++;
+                    }
+                    processed = true;
+                }
+            }
+
+            if (!processed)
+            {
+                wxRichTextRange range(newPos, newPos);
+                if (CanDeleteRange(* GetFocusObject(), range.FromInternal()))
+                {
+                    GetFocusObject()->DeleteRangeWithUndo(range, this, & GetBuffer());
+                    deletions ++;
+                }
+            }
+        }
+
+        EndBatchUndo();
+
+        if (GetLastPosition() == -1)
+        {
+            GetFocusObject()->Reset();
+
+            m_caretPosition = -1;
+            PositionCaret();
+            SetDefaultStyleToCursorStyle();
+        }
+
+        ScrollIntoView(m_caretPosition, WXK_LEFT);
+
+        // Always send this event; wxEVT_COMMAND_RICHTEXT_CONTENT_DELETED will be sent only if there is an actual deletion.
+        {
+            wxRichTextEvent cmdEvent(
+                wxEVT_COMMAND_RICHTEXT_DELETE,
+                GetId());
+            cmdEvent.SetEventObject(this);
+            cmdEvent.SetFlags(flags);
+            cmdEvent.SetPosition(m_caretPosition+1);
+            cmdEvent.SetContainer(GetFocusObject());
+            GetEventHandler()->ProcessEvent(cmdEvent);
+        }
+
+        Update();
+    }
+
+    return true;
+}
+
 /// Delete content if there is a selection, e.g. when pressing a key.
 bool wxRichTextCtrl::DeleteSelectedContent(long* newPos)
 {
@@ -1606,7 +1710,7 @@ bool wxRichTextCtrl::ScrollIntoView(long position, int keyCode)
     if (ppuY != 0)
         syUnits = sy/ppuY;
 
-    wxRect rect = line->GetRect();
+    wxRect rect = GetScaledRect(line->GetRect());
 
     bool scrolled = false;
 
@@ -1619,14 +1723,13 @@ bool wxRichTextCtrl::ScrollIntoView(long position, int keyCode)
         wxRichTextObject::GetTotalMargin(dc, & GetBuffer(), GetBuffer().GetAttributes(), leftMargin, rightMargin,
             topMargin, bottomMargin);
     }
-//    clientSize.y -= GetBuffer().GetBottomMargin();
-    clientSize.y -= bottomMargin;
+    clientSize.y -= (int) (0.5 + bottomMargin * GetScale());
 
     if (GetWindowStyle() & wxRE_CENTRE_CARET)
     {
         int y = rect.y - GetClientSize().y/2;
         int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
-        if (y >= 0 && (y + clientSize.y) < GetBuffer().GetCachedSize().y)
+        if (y >= 0 && (y + clientSize.y) < (int) (0.5 + GetBuffer().GetCachedSize().y * GetScale()))
         {
             if (startYUnits != yUnits)
             {
@@ -1665,11 +1768,11 @@ bool wxRichTextCtrl::ScrollIntoView(long position, int keyCode)
                 scrolled = true;
             }
         }
-        else if (rect.y < (startY + GetBuffer().GetTopMargin()))
+        else if (rect.y < (startY + (int) (0.5 + GetBuffer().GetTopMargin() * GetScale())))
         {
             // Make it scroll so this item is at the top
             // of the window
-            int y = rect.y - GetBuffer().GetTopMargin();
+            int y = rect.y - (int) (0.5 + GetBuffer().GetTopMargin() * GetScale());
             int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
 
             if (startYUnits != yUnits)
@@ -1685,11 +1788,11 @@ bool wxRichTextCtrl::ScrollIntoView(long position, int keyCode)
              keyCode == WXK_HOME || keyCode == WXK_NUMPAD_HOME ||
              keyCode == WXK_PAGEUP || keyCode == WXK_NUMPAD_PAGEUP )
     {
-        if (rect.y < (startY + GetBuffer().GetBottomMargin()))
+        if (rect.y < (startY + (int) (0.5 + GetBuffer().GetBottomMargin() * GetScale())))
         {
             // Make it scroll so this item is at the top
             // of the window
-            int y = rect.y - GetBuffer().GetTopMargin();
+            int y = rect.y - (int) (0.5 + GetBuffer().GetTopMargin() * GetScale());
             int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
 
             if (startYUnits != yUnits)
@@ -1741,11 +1844,12 @@ bool wxRichTextCtrl::IsPositionVisible(long pos) const
     startX = 0;
     startY = startY * ppuY;
 
-    wxRect rect = line->GetRect();
+    wxRect rect = GetScaledRect(line->GetRect());
     wxSize clientSize = GetClientSize();
-    clientSize.y -= GetBuffer().GetBottomMargin();
+    clientSize.y -= (int) (0.5 + GetBuffer().GetBottomMargin() * GetScale());
 
-    return (rect.GetTop() >= (startY + GetBuffer().GetTopMargin())) && (rect.GetBottom() <= (startY + clientSize.y));
+    return (rect.GetTop() >= (startY + (int) (0.5 + GetBuffer().GetTopMargin() * GetScale()))) &&
+           (rect.GetBottom() <= (startY + clientSize.y));
 }
 
 void wxRichTextCtrl::SetCaretPosition(long position, bool showAtLineStart)
@@ -1868,7 +1972,7 @@ bool wxRichTextCtrl::MoveRight(int noPositions, int flags)
         // we want to adjust the caret position such that it is positioned at the
         // start of the next line, rather than jumping past the first character of the
         // line.
-        if (noPositions == 1 && !extendSel)
+        if (noPositions == 1)
             MoveCaretForward(oldPos);
         else
             SetCaretPosition(newPos);
@@ -1895,7 +1999,7 @@ bool wxRichTextCtrl::MoveLeft(int noPositions, int flags)
         if (!extendSel)
             SelectNone();
 
-        if (noPositions == 1 && !extendSel)
+        if (noPositions == 1)
             MoveCaretBack(oldPos);
         else
             SetCaretPosition(newPos);
@@ -1976,7 +2080,7 @@ bool wxRichTextCtrl::MoveDown(int noLines, int flags)
     }
 
     wxRichTextParagraphLayoutBox* container = GetFocusObject();
-    int hitTestFlags = wxRICHTEXT_HITTEST_NO_NESTED_OBJECTS|wxRICHTEXT_HITTEST_NO_FLOATING_OBJECTS;
+    int hitTestFlags = wxRICHTEXT_HITTEST_NO_NESTED_OBJECTS|wxRICHTEXT_HITTEST_NO_FLOATING_OBJECTS|wxRICHTEXT_HITTEST_HONOUR_ATOMIC;
 
     if (notInThisObject)
     {
@@ -2010,7 +2114,8 @@ bool wxRichTextCtrl::MoveDown(int noLines, int flags)
 
     wxRichTextObject* hitObj = NULL;
     wxRichTextObject* contextObj = NULL;
-    int hitTest = container->HitTest(dc, pt, newPos, & hitObj, & contextObj, hitTestFlags);
+    wxRichTextDrawingContext context(& GetBuffer());
+    int hitTest = container->HitTest(dc, context, pt, newPos, & hitObj, & contextObj, hitTestFlags);
 
     if (hitObj &&
         ((hitTest & wxRICHTEXT_HITTEST_NONE) == 0) &&
@@ -2083,7 +2188,7 @@ bool wxRichTextCtrl::MoveToParagraphStart(int flags)
         if (!extendSel)
             SelectNone();
 
-        SetCaretPosition(newPos);
+        SetCaretPosition(newPos, true);
         PositionCaret();
         SetDefaultStyleToCursorStyle();
 
@@ -2224,7 +2329,7 @@ bool wxRichTextCtrl::PageDown(int noPages, int flags)
 
 static bool wxRichTextCtrlIsWhitespace(const wxString& str)
 {
-    return str == wxT(" ") || str == wxT("\t");
+    return str == wxT(" ") || str == wxT("\t") || (!str.empty() && (str[0] == (wxChar) 160));
 }
 
 // Finds the caret position for the next word
@@ -2448,7 +2553,7 @@ void wxRichTextCtrl::SetupScrollbars(bool atTop)
     if (IsFrozen())
         return;
 
-    if (GetBuffer().IsEmpty())
+    if (GetBuffer().IsEmpty() || !m_verticalScrollbarEnabled)
     {
         SetScrollbars(0, 0, 0, 0, 0, 0);
         return;
@@ -2459,7 +2564,7 @@ void wxRichTextCtrl::SetupScrollbars(bool atTop)
     int pixelsPerUnit = 5;
     wxSize clientSize = GetClientSize();
 
-    int maxHeight = GetBuffer().GetCachedSize().y + GetBuffer().GetTopMargin();
+    int maxHeight = (int) (0.5 + GetScale() * (GetBuffer().GetCachedSize().y + GetBuffer().GetTopMargin()));
 
     // Round up so we have at least maxHeight pixels
     int unitsY = (int) (((float)maxHeight/(float)pixelsPerUnit) + 0.5);
@@ -2538,6 +2643,8 @@ bool wxRichTextCtrl::RecreateBuffer(const wxSize& size)
 
 bool wxRichTextCtrl::DoLoadFile(const wxString& filename, int fileType)
 {
+    SetFocusObject(& GetBuffer(), true);
+
     bool success = GetBuffer().LoadFile(filename, (wxRichTextFileType)fileType);
     if (success)
         m_filename = filename;
@@ -2602,11 +2709,6 @@ wxRichTextRange wxRichTextCtrl::AddImage(const wxImage& image)
 // selection and ranges
 // ----------------------------------------------------------------------------
 
-void wxRichTextCtrl::SelectAll()
-{
-    SetSelection(-1, -1);
-}
-
 /// Select none
 void wxRichTextCtrl::SelectNone()
 {
@@ -2724,7 +2826,8 @@ wxRichTextCtrl::HitTest(const wxPoint& pt,
 
     wxRichTextObject* hitObj = NULL;
     wxRichTextObject* contextObj = NULL;
-    int hit = ((wxRichTextCtrl*)this)->GetFocusObject()->HitTest(dc, pt2, *pos, & hitObj, & contextObj, wxRICHTEXT_HITTEST_NO_NESTED_OBJECTS);
+    wxRichTextDrawingContext context((wxRichTextBuffer*) & GetBuffer());
+    int hit = ((wxRichTextCtrl*)this)->GetFocusObject()->HitTest(dc, context, pt2, *pos, & hitObj, & contextObj, wxRICHTEXT_HITTEST_NO_NESTED_OBJECTS);
 
     if ((hit & wxRICHTEXT_HITTEST_BEFORE) && (hit & wxRICHTEXT_HITTEST_OUTSIDE))
         return wxTE_HT_BEFORE;
@@ -2746,7 +2849,8 @@ wxRichTextCtrl::FindContainerAtPoint(const wxPoint pt, long& position, int& hit,
     wxPoint logicalPt = GetLogicalPoint(pt);
 
     wxRichTextObject* contextObj = NULL;
-    hit = GetBuffer().HitTest(dc, logicalPt, position, &hitObj, &contextObj, flags);
+    wxRichTextDrawingContext context(& GetBuffer());
+    hit = GetBuffer().HitTest(dc, context, GetUnscaledPoint(logicalPt), position, &hitObj, &contextObj, flags);
     wxRichTextParagraphLayoutBox* container = wxDynamicCast(contextObj, wxRichTextParagraphLayoutBox);
 
     return container;
@@ -2815,6 +2919,7 @@ void wxRichTextCtrl::DoWriteText(const wxString& value, int flags)
     wxString valueUnix = wxTextFile::Translate(value, wxTextFileType_Unix);
 
     GetFocusObject()->InsertTextWithUndo(& GetBuffer(), m_caretPosition+1, valueUnix, this, wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE);
+    GetBuffer().Defragment();
 
     if ( flags & SetValue_SendEvent )
         wxTextCtrl::SendTextUpdatedEvent(this);
@@ -2885,6 +2990,13 @@ wxRichTextBox* wxRichTextCtrl::WriteTextBox(const wxRichTextAttr& textAttr)
     return box;
 }
 
+wxRichTextField* wxRichTextCtrl::WriteField(const wxString& fieldType, const wxRichTextProperties& properties,
+                            const wxRichTextAttr& textAttr)
+{
+    return GetFocusObject()->InsertFieldWithUndo(& GetBuffer(), m_caretPosition+1, fieldType, properties,
+                this, wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE, textAttr);
+}
+
 // Write a table at the current insertion point, returning the table.
 wxRichTextTable* wxRichTextCtrl::WriteTable(int rows, int cols, const wxRichTextAttr& tableAttr, const wxRichTextAttr& cellAttr)
 {
@@ -2999,12 +3111,12 @@ bool wxRichTextCtrl::CanCopy() const
 
 bool wxRichTextCtrl::CanCut() const
 {
-    return HasSelection() && IsEditable();
+    return CanDeleteSelection();
 }
 
 bool wxRichTextCtrl::CanPaste() const
 {
-    if ( !IsEditable() )
+    if ( !IsEditable() || !GetFocusObject() || !CanInsertContent(* GetFocusObject(), m_caretPosition+1))
         return false;
 
     return GetBuffer().CanPasteFromClipboard();
@@ -3012,7 +3124,7 @@ bool wxRichTextCtrl::CanPaste() const
 
 bool wxRichTextCtrl::CanDeleteSelection() const
 {
-    return HasSelection() && IsEditable();
+    return HasSelection() && IsEditable() && CanDeleteRange(* GetFocusObject(), GetSelectionRange());
 }
 
 
@@ -3037,6 +3149,7 @@ void wxRichTextCtrl::SetInsertionPoint(long pos)
     SelectNone();
 
     m_caretPosition = pos - 1;
+    m_caretAtLineStart = true;
 
     PositionCaret();
 
@@ -3131,7 +3244,8 @@ void wxRichTextCtrl::Replace(long from, long to,
 
     SetDefaultStyle(attr);
 
-    DoWriteText(value, SetValue_SelectionOnly);
+    if (!value.IsEmpty())
+        DoWriteText(value, SetValue_SelectionOnly);
 
     EndBatchUndo();
 }
@@ -3340,8 +3454,8 @@ void wxRichTextCtrl::OnProperties(wxCommandEvent& event)
     if (idx >= 0 && idx < m_contextMenuPropertiesInfo.GetCount())
     {
         wxRichTextObject* obj = m_contextMenuPropertiesInfo.GetObject(idx);
-        if (obj && obj->CanEditProperties())
-            obj->EditProperties(this, & GetBuffer());
+        if (obj && CanEditProperties(obj))
+            EditProperties(obj, this);
 
         m_contextMenuPropertiesInfo.Clear();
     }
@@ -3380,7 +3494,8 @@ int wxRichTextCtrl::PrepareContextMenu(wxMenu* menu, const wxPoint& pt, bool add
     if (pt != wxDefaultPosition)
     {
         wxPoint logicalPt = GetLogicalPoint(ScreenToClient(pt));
-        int hit = GetBuffer().HitTest(dc, logicalPt, position, & hitObj, & contextObj);
+        wxRichTextDrawingContext context(& GetBuffer());
+        int hit = GetBuffer().HitTest(dc, context, GetUnscaledPoint(logicalPt), position, & hitObj, & contextObj);
 
         if (hit == wxRICHTEXT_HITTEST_ON || hit == wxRICHTEXT_HITTEST_BEFORE || hit == wxRICHTEXT_HITTEST_AFTER)
         {
@@ -3394,18 +3509,18 @@ int wxRichTextCtrl::PrepareContextMenu(wxMenu* menu, const wxPoint& pt, bool add
                 }
 
                 if (addPropertyCommands)
-                    m_contextMenuPropertiesInfo.AddItems(actualContainer, hitObj);
+                    m_contextMenuPropertiesInfo.AddItems(this, actualContainer, hitObj);
             }
             else
             {
                 if (addPropertyCommands)
-                    m_contextMenuPropertiesInfo.AddItems(GetFocusObject(), NULL);
+                    m_contextMenuPropertiesInfo.AddItems(this, GetFocusObject(), NULL);
             }
         }
         else
         {
             if (addPropertyCommands)
-                m_contextMenuPropertiesInfo.AddItems(GetFocusObject(), NULL);
+                m_contextMenuPropertiesInfo.AddItems(this, GetFocusObject(), NULL);
         }
     }
     else
@@ -3422,12 +3537,12 @@ int wxRichTextCtrl::PrepareContextMenu(wxMenu* menu, const wxPoint& pt, bool add
         if (hitObj && actualContainer)
         {
             if (addPropertyCommands)
-                m_contextMenuPropertiesInfo.AddItems(actualContainer, hitObj);
+                m_contextMenuPropertiesInfo.AddItems(this, actualContainer, hitObj);
         }
         else
         {
             if (addPropertyCommands)
-                m_contextMenuPropertiesInfo.AddItems(GetFocusObject(), NULL);
+                m_contextMenuPropertiesInfo.AddItems(this, GetFocusObject(), NULL);
         }
     }
 
@@ -3474,9 +3589,9 @@ bool wxRichTextCtrl::SetStyle(const wxRichTextRange& range, const wxRichTextAttr
     return GetFocusObject()->SetStyle(range.ToInternal(), style);
 }
 
-void wxRichTextCtrl::SetStyle(wxRichTextObject *obj, const wxRichTextAttr& textAttr)
+void wxRichTextCtrl::SetStyle(wxRichTextObject *obj, const wxRichTextAttr& textAttr, int flags)
 {
-    GetFocusObject()->SetStyle(obj, textAttr);
+    GetFocusObject()->SetStyle(obj, textAttr, flags);
 }
 
 // extended style setting operation with flags including:
@@ -3569,6 +3684,11 @@ bool wxRichTextCtrl::GetUncombinedStyle(long position, wxRichTextAttr& style, wx
     return container->GetUncombinedStyle(position, style);
 }
 
+bool wxRichTextCtrl::SetProperties(const wxRichTextRange& range, const wxRichTextProperties& properties, int flags)
+{
+    return GetFocusObject()->SetProperties(range.ToInternal(), properties, flags);
+}
+
 /// Set font, and also the buffer attributes
 bool wxRichTextCtrl::SetFont(const wxFont& font)
 {
@@ -3613,6 +3733,9 @@ void wxRichTextCtrl::PositionCaret(wxRichTextParagraphLayoutBox* container)
     wxRect caretRect;
     if (GetCaretPositionForIndex(GetCaretPosition(), caretRect, container))
     {
+        caretRect = GetScaledRect(caretRect);
+        int topMargin = (int) (0.5 + GetScale()*GetBuffer().GetTopMargin());
+        int bottomMargin = (int) (0.5 + GetScale()*GetBuffer().GetBottomMargin());
         wxPoint newPt = caretRect.GetPosition();
         wxSize newSz = caretRect.GetSize();
         wxPoint pt = GetPhysicalPoint(newPt);
@@ -3623,23 +3746,23 @@ void wxRichTextCtrl::PositionCaret(wxRichTextParagraphLayoutBox* container)
                 GetCaret()->SetSize(newSz);
 
             // Adjust size so the caret size and position doesn't appear in the margins
-            if (((pt.y + newSz.y) <= GetBuffer().GetTopMargin()) || (pt.y >= (GetClientSize().y - GetBuffer().GetBottomMargin())))
+            if (((pt.y + newSz.y) <= topMargin) || (pt.y >= (GetClientSize().y - bottomMargin)))
             {
                 pt.x = -200;
                 pt.y = -200;
             }
-            else if (pt.y < GetBuffer().GetTopMargin() && (pt.y + newSz.y) > GetBuffer().GetTopMargin())
+            else if (pt.y < topMargin && (pt.y + newSz.y) > topMargin)
             {
-                newSz.y -= (GetBuffer().GetTopMargin() - pt.y);
+                newSz.y -= (topMargin - pt.y);
                 if (newSz.y > 0)
                 {
-                    pt.y = GetBuffer().GetTopMargin();
+                    pt.y = topMargin;
                     GetCaret()->SetSize(newSz);
                 }
             }
-            else if (pt.y < (GetClientSize().y - GetBuffer().GetBottomMargin()) && (pt.y + newSz.y) > (GetClientSize().y - GetBuffer().GetBottomMargin()))
+            else if (pt.y < (GetClientSize().y - bottomMargin) && (pt.y + newSz.y) > (GetClientSize().y - bottomMargin))
             {
-                newSz.y = GetClientSize().y - GetBuffer().GetBottomMargin() - pt.y;
+                newSz.y = GetClientSize().y - bottomMargin - pt.y;
                 GetCaret()->SetSize(newSz);
             }
 
@@ -3653,9 +3776,9 @@ void wxRichTextCtrl::PositionCaret(wxRichTextParagraphLayoutBox* container)
 bool wxRichTextCtrl::GetCaretPositionForIndex(long position, wxRect& rect, wxRichTextParagraphLayoutBox* container)
 {
     wxClientDC dc(this);
-    dc.SetFont(GetFont());
-
     PrepareDC(dc);
+    dc.SetUserScale(GetScale(), GetScale());
+    dc.SetFont(GetFont());
 
     wxPoint pt;
     int height = 0;
@@ -3663,7 +3786,8 @@ bool wxRichTextCtrl::GetCaretPositionForIndex(long position, wxRect& rect, wxRic
     if (!container)
         container = GetFocusObject();
 
-    if (container->FindPosition(dc, position, pt, & height, m_caretAtLineStart))
+    wxRichTextDrawingContext context(& GetBuffer());
+    if (container->FindPosition(dc, context, position, pt, & height, m_caretAtLineStart))
     {
         // Caret height can't be zero
         if (height == 0)
@@ -3725,7 +3849,7 @@ bool wxRichTextCtrl::LayoutContent(bool onlyVisibleRect)
 {
     if (GetBuffer().IsDirty() || onlyVisibleRect)
     {
-        wxRect availableSpace(GetClientSize());
+        wxRect availableSpace(GetUnscaledSize(GetClientSize()));
         if (availableSpace.width == 0)
             availableSpace.width = 10;
         if (availableSpace.height == 0)
@@ -3735,20 +3859,21 @@ bool wxRichTextCtrl::LayoutContent(bool onlyVisibleRect)
         if (onlyVisibleRect)
         {
             flags |= wxRICHTEXT_LAYOUT_SPECIFIED_RECT;
-            availableSpace.SetPosition(GetLogicalPoint(wxPoint(0, 0)));
+            availableSpace.SetPosition(GetUnscaledPoint(GetLogicalPoint(wxPoint(0, 0))));
         }
 
         wxClientDC dc(this);
-        dc.SetFont(GetFont());
 
         PrepareDC(dc);
+        dc.SetFont(GetFont());
 
+        wxRichTextDrawingContext context(& GetBuffer());
         GetBuffer().Defragment();
         GetBuffer().UpdateRanges();     // If items were deleted, ranges need recalculation
-        GetBuffer().Layout(dc, availableSpace, flags);
+        GetBuffer().Layout(dc, context, availableSpace, availableSpace, flags);
         GetBuffer().Invalidate(wxRICHTEXT_NONE);
 
-        if (!IsFrozen())
+        if (!IsFrozen() && !onlyVisibleRect)
             SetupScrollbars();
     }
 
@@ -3988,7 +4113,7 @@ bool wxRichTextCtrl::ApplyStyle(wxRichTextStyleDefinition* def)
 
     int flags = wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_RESET;
 
-    if (def->IsKindOf(CLASSINFO(wxRichTextListStyleDefinition)))
+    if (wxDynamicCast(def, wxRichTextListStyleDefinition))
     {
         flags |= wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY;
 
@@ -4008,7 +4133,7 @@ bool wxRichTextCtrl::ApplyStyle(wxRichTextStyleDefinition* def)
     bool isPara = false;
 
     // Make sure the attr has the style name
-    if (def->IsKindOf(CLASSINFO(wxRichTextParagraphStyleDefinition)))
+    if (wxDynamicCast(def, wxRichTextParagraphStyleDefinition))
     {
         isPara = true;
         attr.SetParagraphStyleName(def->GetName());
@@ -4018,12 +4143,12 @@ bool wxRichTextCtrl::ApplyStyle(wxRichTextStyleDefinition* def)
         // to change its style independently.
         flags |= wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY;
     }
-    else if (def->IsKindOf(CLASSINFO(wxRichTextCharacterStyleDefinition)))
+    else if (wxDynamicCast(def, wxRichTextCharacterStyleDefinition))
         attr.SetCharacterStyleName(def->GetName());
-    else if (def->IsKindOf(CLASSINFO(wxRichTextBoxStyleDefinition)))
+    else if (wxDynamicCast(def, wxRichTextBoxStyleDefinition))
         attr.GetTextBoxAttr().SetBoxStyleName(def->GetName());
 
-    if (def->IsKindOf(CLASSINFO(wxRichTextBoxStyleDefinition)))
+    if (wxDynamicCast(def, wxRichTextBoxStyleDefinition))
     {
         if (GetFocusObject() && (GetFocusObject() != & GetBuffer()))
         {
@@ -4110,7 +4235,7 @@ bool wxRichTextCtrl::SetDefaultStyleToCursorStyle()
 /// Returns the first visible position in the current view
 long wxRichTextCtrl::GetFirstVisiblePosition() const
 {
-    wxRichTextLine* line = GetFocusObject()->GetLineAtYPosition(GetLogicalPoint(wxPoint(0, 0)).y);
+    wxRichTextLine* line = GetFocusObject()->GetLineAtYPosition(GetUnscaledPoint(GetLogicalPoint(wxPoint(0, 0))).y);
     if (line)
         return line->GetAbsoluteRange().GetStart();
     else
@@ -4196,6 +4321,61 @@ bool wxRichTextCtrl::PromoteList(int promoteBy, const wxRichTextRange& range, co
     return GetFocusObject()->PromoteList(promoteBy, range.ToInternal(), defName, flags, specifiedLevel);
 }
 
+// Given a character position at which there is a list style, find the range
+// encompassing the same list style by looking backwards and forwards.
+wxRichTextRange wxRichTextCtrl::FindRangeForList(long pos, bool& isNumberedList)
+{
+    wxRichTextParagraphLayoutBox* focusObject = GetFocusObject();
+    wxRichTextRange range = wxRichTextRange(-1, -1);
+    wxRichTextParagraph* para = focusObject->GetParagraphAtPosition(pos);
+    if (!para || !para->GetAttributes().HasListStyleName())
+        return range;
+    else
+    {
+        wxString listStyle = para->GetAttributes().GetListStyleName();
+        range = para->GetRange();
+
+        isNumberedList = para->GetAttributes().HasBulletNumber();
+
+        // Search back
+        wxRichTextObjectList::compatibility_iterator initialNode = focusObject->GetChildren().Find(para);
+        if (initialNode)
+        {
+            wxRichTextObjectList::compatibility_iterator startNode = initialNode->GetPrevious();
+            while (startNode)
+            {
+                wxRichTextParagraph* p = wxDynamicCast(startNode->GetData(), wxRichTextParagraph);
+                if (p)
+                {
+                    if (!p->GetAttributes().HasListStyleName() || p->GetAttributes().GetListStyleName() != listStyle)
+                        break;
+                    else
+                        range.SetStart(p->GetRange().GetStart());
+                }
+
+                startNode = startNode->GetPrevious();
+            }
+
+            // Search forward
+            wxRichTextObjectList::compatibility_iterator endNode = initialNode->GetNext();
+            while (endNode)
+            {
+                wxRichTextParagraph* p = wxDynamicCast(endNode->GetData(), wxRichTextParagraph);
+                if (p)
+                {
+                    if (!p->GetAttributes().HasListStyleName() || p->GetAttributes().GetListStyleName() != listStyle)
+                        break;
+                    else
+                        range.SetEnd(p->GetRange().GetEnd());
+                }
+
+                endNode = endNode->GetNext();
+            }
+        }
+    }
+    return range;
+}
+
 /// Deletes the content in the given range
 bool wxRichTextCtrl::Delete(const wxRichTextRange& range)
 {
@@ -4281,8 +4461,8 @@ bool wxRichTextCtrl::RefreshForSelectionChange(const wxRichTextSelection& oldSel
     if (firstLine && lastLine)
     {
         wxSize clientSize = GetClientSize();
-        wxPoint pt1 = GetPhysicalPoint(firstLine->GetAbsolutePosition());
-        wxPoint pt2 = GetPhysicalPoint(lastLine->GetAbsolutePosition()) + wxPoint(0, lastLine->GetSize().y);
+        wxPoint pt1 = GetPhysicalPoint(GetScaledPoint(firstLine->GetAbsolutePosition()));
+        wxPoint pt2 = GetPhysicalPoint(GetScaledPoint(lastLine->GetAbsolutePosition())) + wxPoint(0, (int) (0.5 + lastLine->GetSize().y * GetScale()));
 
         pt1.x = 0;
         pt1.y = wxMax(0, pt1.y);
@@ -4375,7 +4555,6 @@ void wxRichTextCtrl::OnDrop(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxDragResu
     wxRichTextParagraphLayoutBox* originContainer = GetSelection().GetContainer();
     wxRichTextParagraphLayoutBox* destContainer = GetFocusObject(); // This will be the drop container, not necessarily the same as the origin one
 
-
     wxRichTextBuffer* richTextBuffer = ((wxRichTextBufferDataObject*)DataObj)->GetRichTextBuffer();
     if (richTextBuffer)
     {
@@ -4407,7 +4586,6 @@ void wxRichTextCtrl::OnDrop(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxDragResu
             originContainer->DeleteRangeWithUndo(selectionrange, this, &GetBuffer());
         }
 
-
         SelectNone();
         Refresh();
     }
@@ -4423,7 +4601,7 @@ bool wxRichTextDropSource::GiveFeedback(wxDragResult WXUNUSED(effect))
     long position = 0;
     int hit = 0;
     wxRichTextObject* hitObj = NULL;
-    wxRichTextParagraphLayoutBox* container = m_rtc->FindContainerAtPoint(m_rtc->ScreenToClient(wxGetMousePosition()), position, hit, hitObj);
+    wxRichTextParagraphLayoutBox* container = m_rtc->FindContainerAtPoint(m_rtc->GetUnscaledPoint(m_rtc->ScreenToClient(wxGetMousePosition())), position, hit, hitObj);
 
     if (!(hit & wxRICHTEXT_HITTEST_NONE) && container && container->AcceptsFocus())
     {
@@ -4435,6 +4613,108 @@ bool wxRichTextDropSource::GiveFeedback(wxDragResult WXUNUSED(effect))
 }
 #endif // wxUSE_DRAG_AND_DROP
 
+bool wxRichTextCtrl::CanDeleteRange(wxRichTextParagraphLayoutBox& WXUNUSED(container), const wxRichTextRange& WXUNUSED(range)) const
+{
+    return true;
+}
+
+bool wxRichTextCtrl::CanInsertContent(wxRichTextParagraphLayoutBox& WXUNUSED(container), long WXUNUSED(pos)) const
+{
+    return true;
+}
+
+void wxRichTextCtrl::EnableVerticalScrollbar(bool enable)
+{
+    m_verticalScrollbarEnabled = enable;
+    SetupScrollbars();
+}
+
+void wxRichTextCtrl::SetFontScale(double fontScale, bool refresh)
+{
+    GetBuffer().SetFontScale(fontScale);
+    if (refresh)
+    {
+        GetBuffer().Invalidate(wxRICHTEXT_ALL);
+        Refresh();
+    }
+}
+
+void wxRichTextCtrl::SetDimensionScale(double dimScale, bool refresh)
+{
+    GetBuffer().SetDimensionScale(dimScale);
+    if (refresh)
+    {
+        GetBuffer().Invalidate(wxRICHTEXT_ALL);
+        Refresh();
+    }
+}
+
+// Sets an overall scale factor for displaying and editing the content.
+void wxRichTextCtrl::SetScale(double scale, bool refresh)
+{
+    m_scale = scale;
+    if (refresh)
+    {
+        GetBuffer().Invalidate(wxRICHTEXT_ALL);
+        Refresh();
+    }
+}
+
+// Get an unscaled point
+wxPoint wxRichTextCtrl::GetUnscaledPoint(const wxPoint& pt) const
+{
+    if (GetScale() == 1.0)
+        return pt;
+    else
+        return wxPoint((int) (0.5 + double(pt.x) / GetScale()), (int) (0.5 + double(pt.y) / GetScale()));
+}
+
+// Get a scaled point
+wxPoint wxRichTextCtrl::GetScaledPoint(const wxPoint& pt) const
+{
+    if (GetScale() == 1.0)
+        return pt;
+    else
+        return wxPoint((int) (0.5 + double(pt.x) * GetScale()), (int) (0.5 + double(pt.y) * GetScale()));
+}
+
+// Get an unscaled size
+wxSize wxRichTextCtrl::GetUnscaledSize(const wxSize& sz) const
+{
+    if (GetScale() == 1.0)
+        return sz;
+    else
+        return wxSize((int) (0.5 + double(sz.x) / GetScale()), (int) (0.5 + double(sz.y) / GetScale()));
+}
+
+// Get a scaled size
+wxSize wxRichTextCtrl::GetScaledSize(const wxSize& sz) const
+{
+    if (GetScale() == 1.0)
+        return sz;
+    else
+        return wxSize((int) (0.5 + double(sz.x) * GetScale()), (int) (0.5 + double(sz.y) * GetScale()));
+}
+
+// Get an unscaled rect
+wxRect wxRichTextCtrl::GetUnscaledRect(const wxRect& rect) const
+{
+    if (GetScale() == 1.0)
+        return rect;
+    else
+        return wxRect((int) (0.5 + double(rect.x) / GetScale()), (int) (0.5 + double(rect.y) / GetScale()),
+                      (int) (0.5 + double(rect.width) / GetScale()), (int) (0.5 + double(rect.height) / GetScale()));
+}
+
+// Get a scaled rect
+wxRect wxRichTextCtrl::GetScaledRect(const wxRect& rect) const
+{
+    if (GetScale() == 1.0)
+        return rect;
+    else
+        return wxRect((int) (0.5 + double(rect.x) * GetScale()), (int) (0.5 + double(rect.y) * GetScale()),
+                      (int) (0.5 + double(rect.width) * GetScale()), (int) (0.5 + double(rect.height) * GetScale()));
+}
 
 #if wxRICHTEXT_USE_OWN_CARET
 
@@ -4673,17 +4953,17 @@ int wxRichTextContextMenuPropertiesInfo::AddMenuItems(wxMenu* menu, int startCmd
 
 // Add appropriate menu items for the current container and clicked on object
 // (and container's parent, if appropriate).
-int wxRichTextContextMenuPropertiesInfo::AddItems(wxRichTextObject* container, wxRichTextObject* obj)
+int wxRichTextContextMenuPropertiesInfo::AddItems(wxRichTextCtrl* ctrl, wxRichTextObject* container, wxRichTextObject* obj)
 {
     Clear();
-    if (obj && obj->CanEditProperties())
-        AddItem(obj->GetPropertiesMenuLabel(), obj);
+    if (obj && ctrl->CanEditProperties(obj))
+        AddItem(ctrl->GetPropertiesMenuLabel(obj), obj);
 
-    if (container && container != obj && container->CanEditProperties() && m_labels.Index(container->GetPropertiesMenuLabel()) == wxNOT_FOUND)
-        AddItem(container->GetPropertiesMenuLabel(), container);
+    if (container && container != obj && ctrl->CanEditProperties(container) && m_labels.Index(ctrl->GetPropertiesMenuLabel(container)) == wxNOT_FOUND)
+        AddItem(ctrl->GetPropertiesMenuLabel(container), container);
 
-    if (container && container->GetParent() && container->GetParent()->CanEditProperties() && m_labels.Index(container->GetParent()->GetPropertiesMenuLabel()) == wxNOT_FOUND)
-        AddItem(container->GetParent()->GetPropertiesMenuLabel(), container->GetParent());
+    if (container && container->GetParent() && ctrl->CanEditProperties(container->GetParent()) && m_labels.Index(ctrl->GetPropertiesMenuLabel(container->GetParent())) == wxNOT_FOUND)
+        AddItem(ctrl->GetPropertiesMenuLabel(container->GetParent()), container->GetParent());
 
     return GetCount();
 }