a draft of wxSSBase class - it is yet unused and hopefully doesn't break anything...

[wxWidgets.git] / include / wx / os2 / dc.h

diff --git a/include/wx/os2/dc.h b/include/wx/os2/dc.h
index aabfd387118f77a85213ef1a486675512c7761fa..89377fd23c7c44c3257e10ecd85a8cc7f22e37b0 100644 (file)
--- a/include/wx/os2/dc.h
+++ b/include/wx/os2/dc.h
@@ -67,6 +67,34 @@
 
 #define     wx_round(a)    (int)((a)+.5)
 
+#if wxUSE_DC_CACHEING
+/*
+ * Cached blitting, maintaining a cache
+ * of bitmaps required for transparent blitting
+ * instead of constant creation/deletion
+ */
+
+class wxDCCacheEntry : public wxObject
+{
+public:
+    wxDCCacheEntry( WXHBITMAP hBitmap
+                   ,int       nWidth
+                   ,int       nHeight
+                   ,int       nDepth
+                  );
+    wxDCCacheEntry( HPS   hPS
+                   ,int   nDepth
+                  );
+    ~wxDCCacheEntry();
+
+    WXHBITMAP                       m_hBitmap;
+    HPS                             m_hPS;
+    int                             m_nWidth;
+    int                             m_nHeight;
+    int                             m_nDepth;
+}; // end of CLASS wxDCCacheEntry
+#endif
+
 class WXDLLEXPORT wxDC : public wxDCBase
 {
     DECLARE_DYNAMIC_CLASS(wxDC)
@@ -157,6 +185,22 @@ public:
     const wxBitmap& GetSelectedBitmap(void) const { return m_vSelectedBitmap; }
     wxBitmap&       GetSelectedBitmap(void) { return m_vSelectedBitmap; }
 
+    void            UpdateClipBox();
+
+#if wxUSE_DC_CACHEING
+    static wxDCCacheEntry* FindBitmapInCache( HPS hPS
+                                             ,int nWidth
+                                             ,int nHeight
+                                            );
+    static wxDCCacheEntry* FindDCInCache( wxDCCacheEntry* pNotThis
+                                         ,HPS             hPS
+                                        );
+
+    static void AddToBitmapCache(wxDCCacheEntry* pEntry);
+    static void AddToDCCache(wxDCCacheEntry* pEntry);
+    static void ClearCache(void);
+#endif
+
 protected:
     virtual void DoFloodFill( wxCoord         vX
                              ,wxCoord         vY
@@ -248,6 +292,8 @@ protected:
                         ,wxCoord vYsrc
                         ,int     nRop = wxCOPY
                         ,bool    bUseMask = FALSE
+                        ,wxCoord vXsrcMask = -1
+                        ,wxCoord vYsrcMask = -1
                        );
 
     virtual void DoSetClippingRegionAsRegion(const wxRegion& rRegion);
@@ -319,11 +365,9 @@ public:
     bool                            m_bOwnsDC:1;
 
     //
-    // our HDC and its usage count: we only free it when the usage count drops
-    // to 0
+    // our HDC
     //
     WXHDC                           m_hDC;
-    int                             m_nDCCount;
 
     //
     // Store all old GDI objects when do a SelectObject, so we can select them
@@ -335,6 +379,11 @@ public:
     WXHBRUSH                        m_hOldBrush;
     WXHFONT                         m_hOldFont;
     WXHPALETTE                      m_hOldPalette;
-};
+
+#if wxUSE_DC_CACHEING
+    static wxList                   m_svBitmapCache;
+    static wxList                   m_svDCCache;
+#endif
+}; // end of CLASS wxDC
 #endif
     // _WX_DC_H_