Fix crash in wxDC::GetMultiLineTextExtent() after last commit.

[wxWidgets.git] / src / stc / ScintillaWX.cpp

diff --git a/src/stc/ScintillaWX.cpp b/src/stc/ScintillaWX.cpp
index b68bde05d30cccff3badc7f658844e2716f2782b..90779336696f95d3832491d179269ae123865c7e 100644 (file)
--- a/src/stc/ScintillaWX.cpp
+++ b/src/stc/ScintillaWX.cpp
@@ -1,5 +1,5 @@
 ////////////////////////////////////////////////////////////////////////////
 ////////////////////////////////////////////////////////////////////////////

-// Name:        ScintillaWX.cxx
+// Name:        src/stc/ScintillaWX.cpp

 // Purpose:     A wxWidgets implementation of Scintilla.  A class derived
 //              from ScintillaBase that uses the "wx platform" defined in
 //              PlatformWX.cxx  This class is one end of a bridge between
 // Purpose:     A wxWidgets implementation of Scintilla.  A class derived
 //              from ScintillaBase that uses the "wx platform" defined in
 //              PlatformWX.cxx  This class is one end of a bridge between


@@ -11,7 +11,7 @@
 // Created:     13-Jan-2000
 // RCS-ID:      $Id$
 // Copyright:   (c) 2000 by Total Control Software
 // Created:     13-Jan-2000
 // RCS-ID:      $Id$
 // Copyright:   (c) 2000 by Total Control Software

-// Licence:     wxWindows license
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 // For compilers that support precompilation, includes "wx.h".
 /////////////////////////////////////////////////////////////////////////////
 
 // For compilers that support precompilation, includes "wx.h".


@@ -34,6 +34,12 @@
 #include "wx/clipbrd.h"
 #include "wx/dnd.h"
 
 #include "wx/clipbrd.h"
 #include "wx/dnd.h"
 

+#if !wxUSE_STD_CONTAINERS && !wxUSE_STD_IOSTREAM && !wxUSE_STD_STRING
+    #include "wx/beforestd.h"
+    #include <string>
+    #include "wx/afterstd.h"
+#endif
+

 #include "ScintillaWX.h"
 #include "ExternalLexer.h"
 #include "wx/stc/stc.h"
 #include "ScintillaWX.h"
 #include "ExternalLexer.h"
 #include "wx/stc/stc.h"


@@ -103,9 +109,9 @@ public:
                          | wxFRAME_FLOAT_ON_PARENT
                          | wxBORDER_NONE
 #ifdef __WXMAC__
                          | wxFRAME_FLOAT_ON_PARENT
                          | wxBORDER_NONE
 #ifdef __WXMAC__

-                         | wxPOPUP_WINDOW  
+                         | wxPOPUP_WINDOW

 #endif
 #endif

-            ), 
+            ),

 #endif
           m_ct(ct), m_swx(swx), m_cx(wxDefaultCoord), m_cy(wxDefaultCoord)
         {
 #endif
           m_ct(ct), m_swx(swx), m_cx(wxDefaultCoord), m_cy(wxDefaultCoord)
         {


@@ -126,7 +132,7 @@ public:
     void OnPaint(wxPaintEvent& WXUNUSED(evt))
     {
         wxAutoBufferedPaintDC dc(this);
     void OnPaint(wxPaintEvent& WXUNUSED(evt))
     {
         wxAutoBufferedPaintDC dc(this);

-        Surface* surfaceWindow = Surface::Allocate();
+        Surface* surfaceWindow = Surface::Allocate(0);

         surfaceWindow->Init(&dc, m_ct->wDraw.GetID());
         m_ct->PaintCT(surfaceWindow);
         surfaceWindow->Release();
         surfaceWindow->Init(&dc, m_ct->wDraw.GetID());
         m_ct->PaintCT(surfaceWindow);
         surfaceWindow->Release();


@@ -180,7 +186,7 @@ public:
         return rv;
     }
 #endif
         return rv;
     }
 #endif

-    
+

     wxPoint GetMyPosition()
     {
         return wxPoint(m_cx, m_cy);
     wxPoint GetMyPosition()
     {
         return wxPoint(m_cx, m_cy);


@@ -263,11 +269,7 @@ void ScintillaWX::Initialise() {
     dropTarget->SetScintilla(this);
     stc->SetDropTarget(dropTarget);
 #endif // wxUSE_DRAG_AND_DROP
     dropTarget->SetScintilla(this);
     stc->SetDropTarget(dropTarget);
 #endif // wxUSE_DRAG_AND_DROP

-#ifdef __WXMAC__
-    vs.extraFontFlag = false;  // UseAntiAliasing
-#else

     vs.extraFontFlag = true;   // UseAntiAliasing
     vs.extraFontFlag = true;   // UseAntiAliasing

-#endif

 }
 
 
 }
 
 


@@ -287,13 +289,13 @@ void ScintillaWX::StartDrag() {
     wxStyledTextEvent evt(wxEVT_STC_START_DRAG, stc->GetId());
     evt.SetEventObject(stc);
     evt.SetDragText(dragText);
     wxStyledTextEvent evt(wxEVT_STC_START_DRAG, stc->GetId());
     evt.SetEventObject(stc);
     evt.SetDragText(dragText);

-    evt.SetDragAllowMove(true);
+    evt.SetDragFlags(wxDrag_DefaultMove);

     evt.SetPosition(wxMin(stc->GetSelectionStart(),
                           stc->GetSelectionEnd()));
     stc->GetEventHandler()->ProcessEvent(evt);
     dragText = evt.GetDragText();
 
     evt.SetPosition(wxMin(stc->GetSelectionStart(),
                           stc->GetSelectionEnd()));
     stc->GetEventHandler()->ProcessEvent(evt);
     dragText = evt.GetDragText();
 

-    if (dragText.length()) {
+    if ( !dragText.empty() ) {

         wxDropSource        source(stc);
         wxTextDataObject    data(dragText);
         wxDragResult        result;
         wxDropSource        source(stc);
         wxTextDataObject    data(dragText);
         wxDragResult        result;


@@ -301,11 +303,11 @@ void ScintillaWX::StartDrag() {
         source.SetData(data);
         dropWentOutside = true;
         inDragDrop = ddDragging;
         source.SetData(data);
         dropWentOutside = true;
         inDragDrop = ddDragging;

-        result = source.DoDragDrop(evt.GetDragAllowMove());
+        result = source.DoDragDrop(evt.GetDragFlags());

         if (result == wxDragMove && dropWentOutside)
             ClearSelection();
         inDragDrop = ddNone;
         if (result == wxDragMove && dropWentOutside)
             ClearSelection();
         inDragDrop = ddNone;

-        SetDragPosition(invalidPosition);
+        SetDragPosition(SelectionPosition(invalidPosition));

     }
 #endif // wxUSE_DRAG_AND_DROP
 }
     }
 #endif // wxUSE_DRAG_AND_DROP
 }


@@ -315,11 +317,9 @@ bool ScintillaWX::SetIdle(bool on) {
     if (idler.state != on) {
         // connect or disconnect the EVT_IDLE handler
         if (on)
     if (idler.state != on) {
         // connect or disconnect the EVT_IDLE handler
         if (on)

-            stc->Connect(wxID_ANY, wxEVT_IDLE,
-                         (wxObjectEventFunction) (wxEventFunction) (wxIdleEventFunction) &wxStyledTextCtrl::OnIdle);
+            stc->Connect(wxID_ANY, wxEVT_IDLE, wxIdleEventHandler(wxStyledTextCtrl::OnIdle));

         else
         else

-            stc->Disconnect(wxID_ANY, wxEVT_IDLE,
-                            (wxObjectEventFunction) (wxEventFunction) (wxIdleEventFunction) &wxStyledTextCtrl::OnIdle);
+            stc->Disconnect(wxID_ANY, wxEVT_IDLE, wxIdleEventHandler(wxStyledTextCtrl::OnIdle));

         idler.state = on;
     }
     return idler.state;
         idler.state = on;
     }
     return idler.state;


@@ -364,7 +364,6 @@ bool ScintillaWX::HaveMouseCapture() {
 void ScintillaWX::ScrollText(int linesToMove) {
     int dy = vs.lineHeight * (linesToMove);
     stc->ScrollWindow(0, dy);
 void ScintillaWX::ScrollText(int linesToMove) {
     int dy = vs.lineHeight * (linesToMove);
     stc->ScrollWindow(0, dy);

-    stc->Update();

 }
 
 void ScintillaWX::SetVerticalScrollPos() {
 }
 
 void ScintillaWX::SetVerticalScrollPos() {


@@ -478,7 +477,7 @@ void ScintillaWX::CancelModes() {
 
 
 void ScintillaWX::Copy() {
 
 
 void ScintillaWX::Copy() {

-    if (currentPos != anchor) {
+    if (!sel.Empty()) {

         SelectionText st;
         CopySelectionRange(&st);
         CopyToClipboard(st);
         SelectionText st;
         CopySelectionRange(&st);
         CopyToClipboard(st);


@@ -506,12 +505,13 @@ void ScintillaWX::Paste() {
 
 #if wxUSE_UNICODE
         // free up the old character buffer in case the text is real big
 
 #if wxUSE_UNICODE
         // free up the old character buffer in case the text is real big

-        data.SetText(wxEmptyString); 
+        data.SetText(wxEmptyString);

         text = wxEmptyString;
 #endif
         int len = strlen(buf);
         text = wxEmptyString;
 #endif
         int len = strlen(buf);

-        pdoc->InsertString(currentPos, buf, len);
-        SetEmptySelection(currentPos + len);
+        int caretMain = sel.MainCaret();
+        pdoc->InsertString(caretMain, buf, len);
+        SetEmptySelection(caretMain + len);

     }
 #endif // wxUSE_DATAOBJ
 
     }
 #endif // wxUSE_DATAOBJ
 


@@ -523,6 +523,9 @@ void ScintillaWX::Paste() {
 
 void ScintillaWX::CopyToClipboard(const SelectionText& st) {
 #if wxUSE_CLIPBOARD
 
 void ScintillaWX::CopyToClipboard(const SelectionText& st) {
 #if wxUSE_CLIPBOARD

+    if ( !st.len )
+        return;
+

     wxTheClipboard->UsePrimarySelection(false);
     if (wxTheClipboard->Open()) {
         wxString text = wxTextBuffer::Translate(stc2wx(st.s, st.len-1));
     wxTheClipboard->UsePrimarySelection(false);
     if (wxTheClipboard->Open()) {
         wxString text = wxTextBuffer::Translate(stc2wx(st.s, st.len-1));


@@ -583,7 +586,7 @@ void ScintillaWX::AddToPopUp(const char *label, int cmd, bool enabled) {
 void ScintillaWX::ClaimSelection() {
 #ifdef __WXGTK__
     // Put the selected text in the PRIMARY selection
 void ScintillaWX::ClaimSelection() {
 #ifdef __WXGTK__
     // Put the selected text in the PRIMARY selection

-    if (currentPos != anchor) {
+    if (!sel.Empty()) {

         SelectionText st;
         CopySelectionRange(&st);
         wxTheClipboard->UsePrimarySelection(true);
         SelectionText st;
         CopySelectionRange(&st);
         wxTheClipboard->UsePrimarySelection(true);


@@ -605,7 +608,7 @@ void ScintillaWX::UpdateSystemCaret() {
             DestroySystemCaret();
             CreateSystemCaret();
         }
             DestroySystemCaret();
             CreateSystemCaret();
         }

-        Point pos = LocationFromPosition(currentPos);
+        Point pos = PointMainCaret();

         ::SetCaretPos(pos.x, pos.y);
     }
 #endif
         ::SetCaretPos(pos.x, pos.y);
     }
 #endif


@@ -614,8 +617,8 @@ void ScintillaWX::UpdateSystemCaret() {
 
 bool ScintillaWX::HasCaretSizeChanged() {
 #ifdef __WXMSW__
 
 bool ScintillaWX::HasCaretSizeChanged() {
 #ifdef __WXMSW__

-    if (( (0 != vs.caretWidth) && (sysCaretWidth != vs.caretWidth) )
-        || (0 != vs.lineHeight) && (sysCaretHeight != vs.lineHeight)) {
+    if ( (vs.caretWidth && (sysCaretWidth != vs.caretWidth))
+        || (vs.lineHeight && (sysCaretHeight != vs.lineHeight)) ) {

         return true;
     }
 #endif
         return true;
     }
 #endif


@@ -668,6 +671,8 @@ sptr_t ScintillaWX::DefWndProc(unsigned int /*iMessage*/, uptr_t /*wParam*/, spt
 
 sptr_t ScintillaWX::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam) {
       switch (iMessage) {
 
 sptr_t ScintillaWX::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam) {
       switch (iMessage) {

+#if 0  // TODO: check this
+          

       case SCI_CALLTIPSHOW: {
           // NOTE: This is copied here from scintilla/src/ScintillaBase.cxx
           // because of the little tweak that needs done below for wxGTK.
       case SCI_CALLTIPSHOW: {
           // NOTE: This is copied here from scintilla/src/ScintillaBase.cxx
           // because of the little tweak that needs done below for wxGTK.


@@ -677,12 +682,18 @@ sptr_t ScintillaWX::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam)
           char* defn = reinterpret_cast<char *>(lParam);
           AutoCompleteCancel();
           pt.y += vs.lineHeight;
           char* defn = reinterpret_cast<char *>(lParam);
           AutoCompleteCancel();
           pt.y += vs.lineHeight;

-          PRectangle rc = ct.CallTipStart(currentPos, pt,
+          int ctStyle = ct.UseStyleCallTip() ? STYLE_CALLTIP : STYLE_DEFAULT;
+          if (ct.UseStyleCallTip())
+          {
+              ct.SetForeBack(vs.styles[STYLE_CALLTIP].fore, vs.styles[STYLE_CALLTIP].back);
+          }
+          int caretMain = sel.MainCaret();
+          PRectangle rc = ct.CallTipStart(caretMain, pt,

                                           defn,
                                           defn,

-                                          vs.styles[STYLE_DEFAULT].fontName,
-                                          vs.styles[STYLE_DEFAULT].sizeZoomed,
+                                          vs.styles[ctStyle].fontName,
+                                          vs.styles[ctStyle].sizeZoomed,

                                           CodePage(),
                                           CodePage(),

-                                          vs.styles[STYLE_DEFAULT].characterSet,
+                                          vs.styles[ctStyle].characterSet,

                                           wMain);
           // If the call-tip window would be out of the client
           // space, adjust so it displays above the text.
                                           wMain);
           // If the call-tip window would be out of the client
           // space, adjust so it displays above the text.


@@ -702,6 +713,7 @@ sptr_t ScintillaWX::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam)
           ct.wCallTip.Show();
           break;
       }
           ct.wCallTip.Show();
           break;
       }

+#endif

 
 #ifdef SCI_LEXER
       case SCI_LOADLEXERLIBRARY:
 
 #ifdef SCI_LEXER
       case SCI_LOADLEXERLIBRARY:


@@ -723,25 +735,55 @@ sptr_t ScintillaWX::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam)
 void ScintillaWX::DoPaint(wxDC* dc, wxRect rect) {
 
     paintState = painting;
 void ScintillaWX::DoPaint(wxDC* dc, wxRect rect) {
 
     paintState = painting;

-    Surface* surfaceWindow = Surface::Allocate();
-    surfaceWindow->Init(dc, wMain.GetID());
-    rcPaint = PRectangleFromwxRect(rect);
-    PRectangle rcClient = GetClientRectangle();
-    paintingAllText = rcPaint.Contains(rcClient);
-
-    ClipChildren(*dc, rcPaint);
-    Paint(surfaceWindow, rcPaint);
+    AutoSurface surfaceWindow(dc, this);
+    if (surfaceWindow) {
+        rcPaint = PRectangleFromwxRect(rect);
+        PRectangle rcClient = GetClientRectangle();
+        paintingAllText = rcPaint.Contains(rcClient);
+
+        ClipChildren(*dc, rcPaint);
+        Paint(surfaceWindow, rcPaint);
+        surfaceWindow->Release();
+    }

 
 

-    delete surfaceWindow;

     if (paintState == paintAbandoned) {
         // Painting area was insufficient to cover new styling or brace
     if (paintState == paintAbandoned) {
         // Painting area was insufficient to cover new styling or brace

-        // highlight positions
-        FullPaint();
+        // highlight positions.  So trigger a new paint event that will
+        // repaint the whole window.
+        stc->Refresh(false);
+        
+#if defined(__WXOSX__)
+        // On Mac we also need to finish the current paint to make sure that
+        // everything is on the screen that needs to be there between now and
+        // when the next paint event arrives.
+        FullPaintDC(dc);
+#endif

     }
     paintState = notPainting;
 }
 
 
     }
     paintState = notPainting;
 }
 
 

+// Force the whole window to be repainted
+void ScintillaWX::FullPaint() {
+    stc->Refresh(false);
+    stc->Update();
+}
+
+
+void ScintillaWX::FullPaintDC(wxDC* dc) {
+    paintState = painting;
+    rcPaint = GetClientRectangle();
+    paintingAllText = true;
+    AutoSurface surfaceWindow(dc, this);
+    if (surfaceWindow) {
+        Paint(surfaceWindow, rcPaint);
+        surfaceWindow->Release();
+    }
+    paintState = notPainting;
+}
+
+
+

 void ScintillaWX::DoHScroll(int type, int pos) {
     int xPos = xOffset;
     PRectangle rcText = GetTextRectangle();
 void ScintillaWX::DoHScroll(int type, int pos) {
     int xPos = xOffset;
     PRectangle rcText = GetTextRectangle();


@@ -795,7 +837,7 @@ void ScintillaWX::DoMouseWheel(int rotation, int delta,
     int lines;
 
     if (ctrlDown) {  // Zoom the fonts if Ctrl key down
     int lines;
 
     if (ctrlDown) {  // Zoom the fonts if Ctrl key down

-        if (rotation < 0) {
+        if (rotation > 0) {

             KeyCommand(SCI_ZOOMIN);
         }
         else {
             KeyCommand(SCI_ZOOMIN);
         }
         else {


@@ -860,7 +902,7 @@ void ScintillaWX::DoMiddleButtonUp(Point pt) {
     // Set the current position to the mouse click point and
     // then paste in the PRIMARY selection, if any.  wxGTK only.
     int newPos = PositionFromLocation(pt);
     // Set the current position to the mouse click point and
     // then paste in the PRIMARY selection, if any.  wxGTK only.
     int newPos = PositionFromLocation(pt);

-    MovePositionTo(newPos, noSel, true);
+    MovePositionTo(newPos, Selection::noSel, true);

 
     pdoc->BeginUndoAction();
     wxTextDataObject data;
 
     pdoc->BeginUndoAction();
     wxTextDataObject data;


@@ -876,8 +918,9 @@ void ScintillaWX::DoMiddleButtonUp(Point pt) {
                                                   wxConvertEOLMode(pdoc->eolMode));
         wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(text);
         int        len = strlen(buf);
                                                   wxConvertEOLMode(pdoc->eolMode));
         wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(text);
         int        len = strlen(buf);

-        pdoc->InsertString(currentPos, buf, len);
-        SetEmptySelection(currentPos + len);
+        int caretMain = sel.MainCaret();
+        pdoc->InsertString(caretMain, buf, len);
+        SetEmptySelection(caretMain + len);

     }
     pdoc->EndUndoAction();
     NotifyChange();
     }
     pdoc->EndUndoAction();
     NotifyChange();


@@ -908,6 +951,14 @@ void ScintillaWX::DoAddChar(int key) {
 int  ScintillaWX::DoKeyDown(const wxKeyEvent& evt, bool* consumed)
 {
     int key = evt.GetKeyCode();
 int  ScintillaWX::DoKeyDown(const wxKeyEvent& evt, bool* consumed)
 {
     int key = evt.GetKeyCode();

+    if (key == WXK_NONE) {
+        // This is a Unicode character not representable in Latin-1 or some key
+        // without key code at all (e.g. dead key or VK_PROCESSKEY under MSW).
+        if ( consumed )
+            *consumed = false;
+        return 0;
+    }
+

     bool shift = evt.ShiftDown(),
          ctrl  = evt.ControlDown(),
          alt   = evt.AltDown();
     bool shift = evt.ShiftDown(),
          ctrl  = evt.ControlDown(),
          alt   = evt.AltDown();


@@ -950,7 +1001,7 @@ int  ScintillaWX::DoKeyDown(const wxKeyEvent& evt, bool* consumed)
     case WXK_CONTROL:           key = 0; break;
     case WXK_ALT:               key = 0; break;
     case WXK_SHIFT:             key = 0; break;
     case WXK_CONTROL:           key = 0; break;
     case WXK_ALT:               key = 0; break;
     case WXK_SHIFT:             key = 0; break;

-    case WXK_MENU:              key = 0; break;
+    case WXK_MENU:              key = SCK_MENU; break;

     }
 
 #ifdef __WXMAC__
     }
 
 #ifdef __WXMAC__


@@ -1005,7 +1056,7 @@ void ScintillaWX::DoOnIdle(wxIdleEvent& evt) {
 
 #if wxUSE_DRAG_AND_DROP
 bool ScintillaWX::DoDropText(long x, long y, const wxString& data) {
 
 #if wxUSE_DRAG_AND_DROP
 bool ScintillaWX::DoDropText(long x, long y, const wxString& data) {

-    SetDragPosition(invalidPosition);
+    SetDragPosition(SelectionPosition(invalidPosition));

 
     wxString text = wxTextBuffer::Translate(data,
                                             wxConvertEOLMode(pdoc->eolMode));
 
     wxString text = wxTextBuffer::Translate(data,
                                             wxConvertEOLMode(pdoc->eolMode));


@@ -1022,7 +1073,7 @@ bool ScintillaWX::DoDropText(long x, long y, const wxString& data) {
 
     dragResult = evt.GetDragResult();
     if (dragResult == wxDragMove || dragResult == wxDragCopy) {
 
     dragResult = evt.GetDragResult();
     if (dragResult == wxDragMove || dragResult == wxDragCopy) {

-        DropAt(evt.GetPosition(),
+        DropAt(SelectionPosition(evt.GetPosition()),

                wx2stc(evt.GetDragText()),
                dragResult == wxDragMove,
                false); // TODO: rectangular?
                wx2stc(evt.GetDragText()),
                dragResult == wxDragMove,
                false); // TODO: rectangular?


@@ -1039,7 +1090,7 @@ wxDragResult ScintillaWX::DoDragEnter(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
 
 
 wxDragResult ScintillaWX::DoDragOver(wxCoord x, wxCoord y, wxDragResult def) {
 
 
 wxDragResult ScintillaWX::DoDragOver(wxCoord x, wxCoord y, wxDragResult def) {

-    SetDragPosition(PositionFromLocation(Point(x, y)));
+    SetDragPosition(SelectionPosition(PositionFromLocation(Point(x, y))));

 
     // Send an event to allow the drag result to be changed
     wxStyledTextEvent evt(wxEVT_STC_DRAG_OVER, stc->GetId());
 
     // Send an event to allow the drag result to be changed
     wxStyledTextEvent evt(wxEVT_STC_DRAG_OVER, stc->GetId());


@@ -1056,20 +1107,11 @@ wxDragResult ScintillaWX::DoDragOver(wxCoord x, wxCoord y, wxDragResult def) {
 
 
 void ScintillaWX::DoDragLeave() {
 
 
 void ScintillaWX::DoDragLeave() {

-    SetDragPosition(invalidPosition);
+    SetDragPosition(SelectionPosition(invalidPosition));

 }
 #endif // wxUSE_DRAG_AND_DROP
 //----------------------------------------------------------------------
 
 }
 #endif // wxUSE_DRAG_AND_DROP
 //----------------------------------------------------------------------
 

-// Force the whole window to be repainted
-void ScintillaWX::FullPaint() {
-#ifndef __WXMAC__
-    stc->Refresh(false);
-#endif
-    stc->Update();
-}
-
-

 void ScintillaWX::DoScrollToLine(int line) {
     ScrollTo(line);
 }
 void ScintillaWX::DoScrollToLine(int line) {
     ScrollTo(line);
 }


@@ -1106,7 +1148,7 @@ void ScintillaWX::SetUseAntiAliasing(bool useAA) {
 }
 
 bool ScintillaWX::GetUseAntiAliasing() {
 }
 
 bool ScintillaWX::GetUseAntiAliasing() {

-    return vs.extraFontFlag;
+    return vs.extraFontFlag != 0;

 }
 
 //----------------------------------------------------------------------
 }
 
 //----------------------------------------------------------------------