#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();
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();
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);
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
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);
// 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
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