#ifndef _WX_DC_H_
#define _WX_DC_H_
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma interface "dc.h"
#endif
#include "wx/defs.h"
-#include "wx/dc.h"
// ---------------------------------------------------------------------------
// macros
// ---------------------------------------------------------------------------
-// Logical to device
-// Absolute
-#define XLOG2DEV(x) (x)
-#define YLOG2DEV(y) (y)
-
-// Relative
-#define XLOG2DEVREL(x) (x)
-#define YLOG2DEVREL(y) (y)
-
-// Device to logical
-// Absolute
-#define XDEV2LOG(x) (x)
-
-#define YDEV2LOG(y) (y)
-
-// Relative
-#define XDEV2LOGREL(x) (x)
-#define YDEV2LOGREL(y) (y)
-
+#if wxUSE_DC_CACHEING
/*
- * Have the same macros as for XView but not for every operation:
- * just for calculating window/viewport extent (a better way of scaling).
+ * Cached blitting, maintaining a cache
+ * of bitmaps required for transparent blitting
+ * instead of constant creation/deletion
*/
-// Logical to device
-// Absolute
-#define MS_XLOG2DEV(x) LogicalToDevice(x)
-
-#define MS_YLOG2DEV(y) LogicalToDevice(y)
-
-// Relative
-#define MS_XLOG2DEVREL(x) LogicalToDeviceXRel(x)
-#define MS_YLOG2DEVREL(y) LogicalToDeviceYRel(y)
-
-// Device to logical
-// Absolute
-#define MS_XDEV2LOG(x) DeviceToLogicalX(x)
-
-#define MS_YDEV2LOG(y) DeviceToLogicalY(y)
-
-// Relative
-#define MS_XDEV2LOGREL(x) DeviceToLogicalXRel(x)
-#define MS_YDEV2LOGREL(y) DeviceToLogicalYRel(y)
-
-#define YSCALE(y) (yorigin - (y))
-
-#define wx_round(a) (int)((a)+.5)
+class wxDCCacheEntry: public wxObject
+{
+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
{
- DECLARE_DYNAMIC_CLASS(wxDC)
-
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();
wxCoord *descent = NULL,
wxCoord *externalLeading = NULL,
wxFont *theFont = NULL) const;
+ virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
virtual bool CanDrawBitmap() const;
virtual bool CanGetTextExtent() const;
virtual void SelectOldObjects(WXHDC dc);
wxWindow *GetWindow() const { return m_canvas; }
- void SetWindow(wxWindow *win) { m_canvas = win; }
+ void SetWindow(wxWindow *win)
+ {
+ m_canvas = win;
+
+#if wxUSE_PALETTE
+ // if we have palettes use the correct one for this window
+ InitializePalette();
+#endif // wxUSE_PALETTE
+ }
WXHDC GetHDC() const { return m_hDC; }
- void SetHDC(WXHDC dc, bool bOwnsDC = FALSE)
+ void SetHDC(WXHDC dc, bool bOwnsDC = false)
{
m_hDC = dc;
m_bOwnsDC = bOwnsDC;
+
+ // we might have a pre existing clipping region, make sure that we
+ // return it if asked -- but avoid calling ::GetClipBox() right now as
+ // it could be unnecessary wasteful
+ m_clipping = true;
+ m_clipX1 =
+ m_clipX2 = 0;
}
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,
+ virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
int style = wxFLOOD_SURFACE);
virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
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,
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 = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord);
// this is gnarly - we can't even call this function DoSetClippingRegion()
// because of virtual function hiding
virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
wxCoord width, wxCoord height);
- virtual void DoGetClippingRegion(wxCoord *x, wxCoord *y,
- wxCoord *width, wxCoord *height)
- {
- GetClippingBox(x, y, width, height);
- }
+ virtual void DoGetClippingBox(wxCoord *x, wxCoord *y,
+ wxCoord *w, wxCoord *h) const;
virtual void DoGetSize(int *width, int *height) const;
virtual void DoGetSizeMM(int* width, int* height) const;
virtual void DoDrawPolygon(int n, wxPoint points[],
wxCoord xoffset, wxCoord yoffset,
int fillStyle = wxODDEVEN_RULE);
+ virtual void DoDrawPolyPolygon(int n, int count[], wxPoint points[],
+ wxCoord xoffset, wxCoord yoffset,
+ int fillStyle = wxODDEVEN_RULE);
+
+
+#if wxUSE_PALETTE
+ // MSW specific, select a logical palette into the HDC
+ // (tell windows to translate pixel from other palettes to our custom one
+ // and vice versa)
+ // Realize tells it to also reset the system palette to this one.
+ void DoSelectPalette(bool realize = false);
+ // Find out what palette our parent window has, then select it into the dc
+ void InitializePalette();
+#endif // wxUSE_PALETTE
// common part of DoDrawText() and DoDrawRotatedText()
void DrawAnyText(const wxString& text, wxCoord x, wxCoord y);
+ // common part of DoSetClippingRegion() and DoSetClippingRegionAsRegion()
+ void SetClippingHrgn(WXHRGN hrgn);
+
// MSW-specific member variables
- int m_windowExtX;
- int m_windowExtY;
+ // -----------------------------
// the window associated with this DC (may be NULL)
wxWindow *m_canvas;
// 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)
+ DECLARE_NO_COPY_CLASS(wxDC)
+};
+
+// ----------------------------------------------------------------------------
+// wxDCTemp: a wxDC which doesn't free the given HDC (used by wxWidgets
+// only/mainly)
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxDCTemp : public wxDC
+{
+public:
+ wxDCTemp(WXHDC hdc) { SetHDC(hdc); }
+ virtual ~wxDCTemp() { SetHDC((WXHDC)NULL); }
+
+private:
+ DECLARE_NO_COPY_CLASS(wxDCTemp)
};
#endif
projects / wxWidgets.git / blobdiff