Change GetC to return an int so that it can return wxEOF on error.

[wxWidgets.git] / include / wx / cocoa / dc.h

diff --git a/include/wx/cocoa/dc.h b/include/wx/cocoa/dc.h
index 91e31313e42ab70de08c5d8fae93b7a1fa5a3612..d04424ba90e4b13858270a935b2dfa86de09ea84 100644 (file)
--- a/include/wx/cocoa/dc.h
+++ b/include/wx/cocoa/dc.h
@@ -6,12 +6,17 @@
 // Created:     2003/04/01
 // RCS-ID:      $Id$
 // Copyright:   (c) 2003 David Elliott
-// Licence:    wxWindows license
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef __WX_COCOA_DC_H__
 #define __WX_COCOA_DC_H__
 
+DECLARE_WXCOCOA_OBJC_CLASS(NSAffineTransform);
+
+class WXDLLEXPORT wxDC;
+WX_DECLARE_LIST(wxDC, wxCocoaDCStack);
+
 //=========================================================================
 // wxDC
 //=========================================================================
@@ -19,25 +24,62 @@ class WXDLLEXPORT wxDC: public wxDCBase
 {
     DECLARE_DYNAMIC_CLASS(wxDC)
     DECLARE_NO_COPY_CLASS(wxDC)
+//-------------------------------------------------------------------------
+// Initialization
+//-------------------------------------------------------------------------
 public:
     wxDC();
-    ~wxDC();
-    
+    virtual ~wxDC();
+
+//-------------------------------------------------------------------------
+// wxCocoa specifics
+//-------------------------------------------------------------------------
+public:
     static void CocoaInitializeTextSystem();
     static void CocoaShutdownTextSystem();
-    static wxDC *sm_focusedDC;
     static WX_NSTextStorage sm_cocoaNSTextStorage;
     static WX_NSLayoutManager sm_cocoaNSLayoutManager;
     static WX_NSTextContainer sm_cocoaNSTextContainer;
-
+    // Create a simple Wx to Bounds transform (just flip the coordinate system)
+    static WX_NSAffineTransform CocoaGetWxToBoundsTransform(bool isFlipped, float height);
+protected:
+// DC stack
+    static wxCocoaDCStack sm_cocoaDCStack;
+    virtual bool CocoaLockFocus();
+    virtual bool CocoaUnlockFocus();
+    bool CocoaUnwindStackAndTakeFocus();
+    inline bool CocoaTakeFocus()
+    {
+        wxCocoaDCStack::compatibility_iterator node = sm_cocoaDCStack.GetFirst();
+        if(node && (node->GetData() == this))
+            return true;
+        return CocoaUnwindStackAndTakeFocus();
+    }
+    void CocoaUnwindStackAndLoseFocus();
+// DC flipping/transformation
+    void CocoaApplyTransformations();
+    void CocoaUnapplyTransformations();
+    WX_NSAffineTransform m_cocoaWxToBoundsTransform;
+// Get bounds rect (for Clear())
+    // note: we use void * to mean NSRect * so that we can avoid
+    // putting NSRect in the headers.
+    virtual bool CocoaGetBounds(void *rectData);
+// Blitting
+    virtual bool CocoaDoBlitOnFocusedDC(wxCoord xdest, wxCoord ydest,
+        wxCoord width, wxCoord height, wxCoord xsrc, wxCoord ysrc,
+        int logicalFunc, bool useMask, wxCoord xsrcMask, wxCoord ysrcMask);
+//-------------------------------------------------------------------------
+// Implementation
+//-------------------------------------------------------------------------
+public:
     // implement base class pure virtuals
     // ----------------------------------
 
     virtual void Clear();
 
-    virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return TRUE; }
+    virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; }
     virtual void EndDoc(void) {};
-    
+
     virtual void StartPage(void) {};
     virtual void EndPage(void) {};
 
@@ -45,7 +87,7 @@ public:
     virtual void SetPen(const wxPen& pen);
     virtual void SetBrush(const wxBrush& brush);
     virtual void SetBackground(const wxBrush& brush);
-    virtual void SetBackgroundMode(int mode) {}
+    virtual void SetBackgroundMode(int mode) { m_backgroundMode = mode; }
     virtual void SetPalette(const wxPalette& palette);
 
     virtual void DestroyClippingRegion();
@@ -75,7 +117,7 @@ public:
     virtual void SetTextForeground(const wxColour& colour) ;
     virtual void SetTextBackground(const wxColour& colour) ;
 
-    void ComputeScaleAndOrigin(void);
+    virtual void ComputeScaleAndOrigin();
 protected:
     virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
                              int style = wxFLOOD_SURFACE);
@@ -88,7 +130,7 @@ protected:
     virtual void DoDrawArc(wxCoord x1, wxCoord y1,
                            wxCoord x2, wxCoord y2,
                            wxCoord xc, wxCoord yc);
-    
+
     virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
                                    double sa, double ea);
 
@@ -102,7 +144,7 @@ protected:
 
     virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
     virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
-                              bool useMask = FALSE);
+                              bool useMask = false);
 
     virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
     virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
@@ -110,7 +152,7 @@ protected:
 
     virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
                         wxDC *source, wxCoord xsrc, wxCoord ysrc,
-                        int rop = wxCOPY, bool useMask = FALSE, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
+                        int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
 
     // this is gnarly - we can't even call this function DoSetClippingRegion()
     // because of virtual function hiding
@@ -126,7 +168,6 @@ protected:
     virtual void DoDrawPolygon(int n, wxPoint points[],
                                wxCoord xoffset, wxCoord yoffset,
                                int fillStyle = wxODDEVEN_RULE);
-
 };
 
 #endif // __WX_COCOA_DC_H__