X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/cd9da200285e3c625be91768c9ca61dc218c94d0..72594e90b2da8c167ba63b89b2c168c57a19cab4:/include/wx/msw/dc.h

diff --git a/include/wx/msw/dc.h b/include/wx/msw/dc.h
index 2bf3643789..30f79932f5 100644
--- a/include/wx/msw/dc.h
+++ b/include/wx/msw/dc.h
@@ -71,10 +71,30 @@
 
 #define     wx_round(a)    (int)((a)+.5)
 
-class WXDLLEXPORT wxDC : public wxDCBase
+#if wxUSE_DC_CACHEING
+/*
+ * Cached blitting, maintaining a cache
+ * of bitmaps required for transparent blitting
+ * instead of constant creation/deletion
+ */
+
+class wxDCCacheEntry: public wxObject
 {
-    DECLARE_DYNAMIC_CLASS(wxDC)
+public:
+    wxDCCacheEntry(WXHBITMAP hBitmap, int w, int h, int depth);
+    wxDCCacheEntry(WXHDC hDC, int depth);
+    ~wxDCCacheEntry();
+
+    WXHBITMAP   m_bitmap;
+    WXHDC       m_dc;
+    int         m_width;
+    int         m_height;
+    int         m_depth;
+};
+#endif
 
+class WXDLLEXPORT wxDC : public wxDCBase
+{
 public:
     wxDC();
     ~wxDC();
@@ -95,7 +115,9 @@ public:
     virtual void SetBrush(const wxBrush& brush);
     virtual void SetBackground(const wxBrush& brush);
     virtual void SetBackgroundMode(int mode);
+#if wxUSE_PALETTE
     virtual void SetPalette(const wxPalette& palette);
+#endif // wxUSE_PALETTE
 
     virtual void DestroyClippingRegion();
 
@@ -125,7 +147,6 @@ public:
     // --------------------------
 
     virtual void SetRop(WXHDC cdc);
-    virtual void DoClipping(WXHDC cdc);
     virtual void SelectOldObjects(WXHDC dc);
 
     wxWindow *GetWindow() const { return m_canvas; }
@@ -141,6 +162,18 @@ public:
     const wxBitmap& GetSelectedBitmap() const { return m_selectedBitmap; }
     wxBitmap& GetSelectedBitmap() { return m_selectedBitmap; }
 
+    // update the internal clip box variables
+    void UpdateClipBox();
+
+#if wxUSE_DC_CACHEING
+    static wxDCCacheEntry* FindBitmapInCache(WXHDC hDC, int w, int h);
+    static wxDCCacheEntry* FindDCInCache(wxDCCacheEntry* notThis, WXHDC hDC);
+
+    static void AddToBitmapCache(wxDCCacheEntry* entry);
+    static void AddToDCCache(wxDCCacheEntry* entry);
+    static void ClearCache();
+#endif
+
 protected:
     virtual void DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
                              int style = wxFLOOD_SURFACE);
@@ -176,7 +209,7 @@ protected:
 
     virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
                         wxDC *source, wxCoord xsrc, wxCoord ysrc,
-                        int rop = wxCOPY, bool useMask = FALSE);
+                        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
@@ -198,9 +231,6 @@ protected:
                                wxCoord xoffset, wxCoord yoffset,
                                int fillStyle = wxODDEVEN_RULE);
 
-#if wxUSE_SPLINES
-    virtual void DoDrawSpline(wxList *points);
-#endif // wxUSE_SPLINES
 
     // common part of DoDrawText() and DoDrawRotatedText()
     void DrawAnyText(const wxString& text, wxCoord x, wxCoord y);
@@ -217,10 +247,8 @@ protected:
     // TRUE => DeleteDC() in dtor, FALSE => only ReleaseDC() it
     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_hDCCount;
 
     // Store all old GDI objects when do a SelectObject, so we can select them
     // back in (this unselecting user's objects) so we can safely delete the
@@ -229,7 +257,29 @@ protected:
     WXHPEN            m_oldPen;
     WXHBRUSH          m_oldBrush;
     WXHFONT           m_oldFont;
+
+#if wxUSE_PALETTE
     WXHPALETTE        m_oldPalette;
+#endif // wxUSE_PALETTE
+
+#if wxUSE_DC_CACHEING
+    static wxList     sm_bitmapCache;
+    static wxList     sm_dcCache;
+#endif
+
+    DECLARE_DYNAMIC_CLASS(wxDC)
+};
+
+// ----------------------------------------------------------------------------
+// wxDCTemp: a wxDC which doesn't free the given HDC (used by wxWindows
+// only/mainly)
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxDCTemp : public wxDC
+{
+public:
+    wxDCTemp(WXHDC hdc) { SetHDC(hdc); }
+    virtual ~wxDCTemp() { SetHDC((WXHDC)NULL); }
 };
 
 #endif