X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b5badcb5c537081babc76146d95614230d734c25..1fdc16adf72fbd051d1f4ffdbc8d35d00b3e2837:/include/wx/msw/dc.h?ds=sidebyside diff --git a/include/wx/msw/dc.h b/include/wx/msw/dc.h index 257f86cd50..1447eb0cbe 100644 --- a/include/wx/msw/dc.h +++ b/include/wx/msw/dc.h @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: dc.h +// Name: wx/msw/dc.h // Purpose: wxDC class // Author: Julian Smart // Modified by: @@ -12,69 +12,36 @@ #ifndef _WX_DC_H_ #define _WX_DC_H_ -#ifdef __GNUG__ - #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(); @@ -95,7 +62,9 @@ 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(); @@ -106,6 +75,7 @@ public: 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; @@ -128,20 +98,47 @@ public: 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; @@ -163,11 +160,15 @@ protected: double radius); virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height); +#if wxUSE_SPLINES + virtual void DoDrawSpline(wxList *points); +#endif + virtual void DoCrossHair(wxCoord x, wxCoord y); 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, @@ -175,18 +176,15 @@ 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 = 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; @@ -196,14 +194,30 @@ protected: 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; @@ -223,7 +237,33 @@ 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) + 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