///////////////////////////////////////////////////////////////////////////// // Name: wx/dcbuffer.h // Purpose: wxBufferedDC class // Author: Ron Lee // Modified by: Vadim Zeitlin (refactored, added bg preservation) // Created: 16/03/02 // RCS-ID: $Id$ // Copyright: (c) Ron Lee // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_DCBUFFER_H_ #define _WX_DCBUFFER_H_ #include "wx/dcmemory.h" #include "wx/dcclient.h" #include "wx/window.h" // I think this patch should be test on wxMac with // wxTEST_PAINTDCDELEGATION as 1, and then with // with wxTEST_MEMORYDCDELEGATION as 1. #define wxTEST_PAINTDCDELEGATION 0 #define wxTEST_MEMORYDCDELEGATION 0 // Split platforms into two groups - those which have well-working // double-buffering by default, and those which do not. #if defined(__WXMAC__) || defined(__WXGTK20__) #define wxALWAYS_NATIVE_DOUBLE_BUFFER 1 #else #define wxALWAYS_NATIVE_DOUBLE_BUFFER 0 #endif #if wxTEST_PAINTDCDELEGATION || wxTEST_MEMORYDCDELEGATION #undef wxALWAYS_NATIVE_DOUBLE_BUFFER #define wxALWAYS_NATIVE_DOUBLE_BUFFER 0 #endif // ---------------------------------------------------------------------------- // Double buffering helper. // ---------------------------------------------------------------------------- // Assumes the buffer bitmap covers the entire scrolled window, // and prepares the window DC accordingly #define wxBUFFER_VIRTUAL_AREA 0x01 // Assumes the buffer bitmap only covers the client area; // does not prepare the window DC #define wxBUFFER_CLIENT_AREA 0x02 class WXDLLEXPORT wxBufferedDC : public wxDC { public: // Default ctor, must subsequently call Init for two stage construction. wxBufferedDC() : wxDC(), m_targetDc(NULL), m_mainDc(NULL), m_buffer(NULL), m_style(0) { } // Construct a wxBufferedDC using a user supplied buffer. wxBufferedDC(wxDC *dc, const wxBitmap &buffer = wxNullBitmap, int style = wxBUFFER_CLIENT_AREA) : wxDC(), m_targetDc(NULL), m_mainDc(NULL) { // All other members except dcs are initialized in Init Init(dc, buffer, style); } // Construct a wxBufferedDC with an internal buffer of 'area' // (where area is usually something like the size of the window // being buffered) wxBufferedDC(wxDC *dc, const wxSize &area, int style = wxBUFFER_CLIENT_AREA) : wxDC(), m_targetDc(NULL), m_mainDc(NULL) { // All other members except dcs are initialized in Init Init(NULL, dc, area, style); } // Same, but also receives window to detect whether it is // natively double-buffered. wxBufferedDC(wxWindow* win, wxDC *dc, const wxSize &area, int style = wxBUFFER_CLIENT_AREA) : wxDC(), m_targetDc(NULL), m_mainDc(NULL) { // All other members except dcs are initialized in Init Init(win, dc, area, style); } // default copy ctor ok. // The usually desired action in the dtor is to blit the buffer. virtual ~wxBufferedDC() { UnMask(); } void Init(wxDC *dc, const wxBitmap &buffer, int style = wxBUFFER_CLIENT_AREA) { wxASSERT_MSG( m_mainDc == NULL, wxT("wxBufferedDC already initialised") ); wxASSERT_MSG( buffer.Ok(), wxT("invalid bitmap") ); m_mainDc = dc; m_buffer = &buffer; m_style = style; UseBuffer(); } void Init(wxWindow* win, wxDC *dc, const wxSize &area = wxDefaultSize, int style = wxBUFFER_CLIENT_AREA) { wxASSERT_MSG( m_mainDc == NULL, wxT("wxBufferedDC already initialised") ); m_mainDc = dc; m_style = style; #if wxTEST_MEMORYDCDELEGATION if ( 0 ) #elif wxTEST_PAINTDCDELEGATION if ( 1 ) #else if ( win && win->IsDoubleBuffered() ) #endif { AttachDC(dc); m_buffer = NULL; } else { PrepareBuffer(win, area); UseBuffer(); } } void Init(wxDC *dc, const wxSize &area = wxDefaultSize, int style = wxBUFFER_CLIENT_AREA) { Init(NULL, dc, area, style); } // Blits the buffer to the dc, and detaches the dc from the buffer (so it // can be effectively used once only). // // Usually called in the dtor or by the dtor of derived classes if the // BufferedDC must blit before the derived class (which may own the dc it's // blitting to) is destroyed. void UnMask(); // Set and get the style void SetStyle(int style) { m_style = style; } int GetStyle() const { return m_style; } private: // Prepares wxMemoryDC. void UseBuffer(); // Allocate m_buffer, if necessary. void PrepareBuffer(wxWindow* win, const wxSize& area); // DC to which calls are delegated. wxDC* m_targetDc; // This the underlying DC to which we copy everything drawn on // this one in UnMask(). // // NB: Without the existence of a wxNullDC, this must be a pointer, else it // could probably be a reference. wxDC* m_mainDc; // the buffer (selected in this DC) const wxBitmap* m_buffer; // the buffering style int m_style; DECLARE_NO_COPY_CLASS(wxBufferedDC) public: // // BEGIN DC-DELEGATION IMPLEMENTATION // wxDC& GetAttachedDC() { return *m_targetDc; } // Use this to set the DC which receives delegated calls. void AttachDC(wxDC* dc) { m_targetDc = dc; #ifdef __WXMSW__ SetHDC( dc ? dc->GetHDC() : NULL ); #endif } // Sets DC to NULL wxDC* DetachDC() { wxDC* retDc = m_targetDc; AttachDC(NULL); return retDc; } #ifdef __WXGTK__ virtual GdkWindow* GetGDKWindow() const { return m_targetDc->GetGDKWindow(); } #endif bool Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, wxDC *source, wxCoord xsrc, wxCoord ysrc, int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord) { return m_targetDc->Blit(xdest, ydest, width, height, source, xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask); } bool Blit(const wxPoint& destPt, const wxSize& sz, wxDC *source, const wxPoint& srcPt, int rop = wxCOPY, bool useMask = false, const wxPoint& srcPtMask = wxDefaultPosition) { return m_targetDc->Blit(destPt, sz, source, srcPt, rop, useMask, srcPtMask); } virtual void CalcBoundingBox(wxCoord x, wxCoord y) { m_targetDc->CalcBoundingBox(x, y); } #if defined(__WXWINCE__) void CalculateEllipticPoints( wxList* points, wxCoord xStart, wxCoord yStart, wxCoord w, wxCoord h, double sa, double ea ) { m_targetDc->CalculateEllipticPoints(points, xStart, yStart, w, h, sa, ea); } #endif // defined(__WXWINCE__) virtual bool CanDrawBitmap() const { return m_targetDc->CanDrawBitmap(); } virtual bool CanGetTextExtent() const { return m_targetDc->CanGetTextExtent(); } virtual void Clear() { m_targetDc->Clear(); } virtual void ComputeScaleAndOrigin() { m_targetDc->ComputeScaleAndOrigin(); } void CrossHair(wxCoord x, wxCoord y) { m_targetDc->CrossHair(x, y); } void CrossHair(const wxPoint& pt) { m_targetDc->CrossHair(pt); } virtual void DestroyClippingRegion() { m_targetDc->DestroyClippingRegion(); } wxCoord DeviceToLogicalX(wxCoord x) const { return m_targetDc->DeviceToLogicalX(x); } wxCoord DeviceToLogicalXRel(wxCoord x) const { return m_targetDc->DeviceToLogicalXRel(x); } wxCoord DeviceToLogicalY(wxCoord y) const { return m_targetDc->DeviceToLogicalY(y); } wxCoord DeviceToLogicalYRel(wxCoord y) const { return m_targetDc->DeviceToLogicalYRel(y); } #if defined(__WXWINCE__) virtual void DoDrawEllipticArcRot( wxCoord x, wxCoord y, wxCoord w, wxCoord h, double sa = 0, double ea = 0, double angle = 0 ) { m_targetDc->DoDrawEllipticArcRot(x, y, w, h, sa, ea, angle); } #endif // defined(__WXWINCE__) void DrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc) { m_targetDc->DrawArc(x1, y1, x2, y2, xc, yc); } void DrawArc(const wxPoint& pt1, const wxPoint& pt2, const wxPoint& centre) { m_targetDc->DrawArc(pt1, pt2, centre); } void DrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask = false) { m_targetDc->DrawBitmap(bmp, x, y, useMask); } void DrawBitmap(const wxBitmap &bmp, const wxPoint& pt, bool useMask = false) { m_targetDc->DrawBitmap(bmp, pt, useMask); } void DrawCheckMark(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { m_targetDc->DrawCheckMark(x, y, width, height); } void DrawCheckMark(const wxRect& rect) { m_targetDc->DrawCheckMark(rect); } void DrawCircle(wxCoord x, wxCoord y, wxCoord radius) { m_targetDc->DrawCircle(x, y, radius); } void DrawCircle(const wxPoint& pt, wxCoord radius) { m_targetDc->DrawCircle(pt, radius); } void DrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { m_targetDc->DrawEllipse(x, y, width, height); } void DrawEllipse(const wxPoint& pt, const wxSize& sz) { m_targetDc->DrawEllipse(pt, sz); } void DrawEllipse(const wxRect& rect) { m_targetDc->DrawEllipse(rect); } void DrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, double sa, double ea) { m_targetDc->DrawEllipticArc(x, y, w, h, sa, ea); } void DrawEllipticArc(const wxPoint& pt, const wxSize& sz, double sa, double ea) { m_targetDc->DrawEllipticArc(pt, sz, sa, ea); } #if defined(__WXWINCE__) void DrawEllipticArcRot( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double sa = 0, double ea = 0, double angle = 0 ) { m_targetDc->DrawEllipticArcRot(x, y, width, height, sa, ea, angle); } void DrawEllipticArcRot( const wxPoint& pt, const wxSize& sz, double sa = 0, double ea = 0, double angle = 0 ) { m_targetDc->DrawEllipticArcRot(pt, sz, sa, ea, angle); } void DrawEllipticArcRot( const wxRect& rect, double sa = 0, double ea = 0, double angle = 0 ) { m_targetDc->DrawEllipticArcRot(rect, sa, ea, angle); } #endif // defined(__WXWINCE__) void DrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) { m_targetDc->DrawIcon(icon, x, y); } void DrawIcon(const wxIcon& icon, const wxPoint& pt) { m_targetDc->DrawIcon(icon, pt); } virtual void DrawLabel(const wxString& text, const wxBitmap& image, const wxRect& rect, int alignment = wxALIGN_LEFT | wxALIGN_TOP, int indexAccel = -1, wxRect *rectBounding = NULL) { m_targetDc->DrawLabel(text, image, rect, alignment, indexAccel, rectBounding); } void DrawLabel(const wxString& text, const wxRect& rect, int alignment = wxALIGN_LEFT | wxALIGN_TOP, int indexAccel = -1) { m_targetDc->DrawLabel(text, rect, alignment, indexAccel); } void DrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) { m_targetDc->DrawLine(x1, y1, x2, y2); } void DrawLine(const wxPoint& pt1, const wxPoint& pt2) { m_targetDc->DrawLine(pt1, pt2); } void DrawLines(int n, wxPoint points[], wxCoord xoffset = 0, wxCoord yoffset = 0) { m_targetDc->DrawLines(n, points, xoffset, yoffset); } void DrawLines(const wxList *list, wxCoord xoffset = 0, wxCoord yoffset = 0) { m_targetDc->DrawLines(list, xoffset, yoffset); } virtual void DrawObject(wxDrawObject* drawobject) { m_targetDc->DrawObject(drawobject); } void DrawPoint(wxCoord x, wxCoord y) { m_targetDc->DrawPoint(x, y); } void DrawPoint(const wxPoint& pt) { m_targetDc->DrawPoint(pt); } void DrawPolyPolygon(int n, int count[], wxPoint points[], wxCoord xoffset = 0, wxCoord yoffset = 0, int fillStyle = wxODDEVEN_RULE) { m_targetDc->DrawPolyPolygon(n, count, points, xoffset, yoffset, fillStyle); } void DrawPolygon(int n, wxPoint points[], wxCoord xoffset = 0, wxCoord yoffset = 0, int fillStyle = wxODDEVEN_RULE) { m_targetDc->DrawPolygon(n, points, xoffset, yoffset, fillStyle); } void DrawPolygon(const wxList *list, wxCoord xoffset = 0, wxCoord yoffset = 0, int fillStyle = wxODDEVEN_RULE) { m_targetDc->DrawPolygon(list, xoffset, yoffset, fillStyle); } void DrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { m_targetDc->DrawRectangle(x, y, width, height); } void DrawRectangle(const wxPoint& pt, const wxSize& sz) { m_targetDc->DrawRectangle(pt, sz); } void DrawRectangle(const wxRect& rect) { m_targetDc->DrawRectangle(rect); } void DrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle) { m_targetDc->DrawRotatedText(text, x, y, angle); } void DrawRotatedText(const wxString& text, const wxPoint& pt, double angle) { m_targetDc->DrawRotatedText(text, pt, angle); } void DrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius) { m_targetDc->DrawRoundedRectangle(x, y, width, height, radius); } void DrawRoundedRectangle(const wxPoint& pt, const wxSize& sz, double radius) { m_targetDc->DrawRoundedRectangle(pt, sz, radius); } void DrawRoundedRectangle(const wxRect& r, double radius) { m_targetDc->DrawRoundedRectangle(r, radius); } #if wxUSE_SPLINES void DrawSpline(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord x3, wxCoord y3) { m_targetDc->DrawSpline(x1, y1, x2, y2, x3, y3); } void DrawSpline(int n, wxPoint points[]) { m_targetDc->DrawSpline(n, points); } void DrawSpline(wxList *points) { m_targetDc->DrawSpline(points); } #endif // wxUSE_SPLINES void DrawText(const wxString& text, wxCoord x, wxCoord y) { m_targetDc->DrawText(text, x, y); } void DrawText(const wxString& text, const wxPoint& pt) { m_targetDc->DrawText(text, pt); } virtual void EndDoc() { m_targetDc->EndDoc(); } virtual void EndPage() { m_targetDc->EndPage(); } bool FloodFill(wxCoord x, wxCoord y, const wxColour& col, int style = wxFLOOD_SURFACE) { return m_targetDc->FloodFill(x, y, col, style); } bool FloodFill(const wxPoint& pt, const wxColour& col, int style = wxFLOOD_SURFACE) { return m_targetDc->FloodFill(pt, col, style); } virtual const wxBrush& GetBackground() const { return m_targetDc->GetBackground(); } virtual int GetBackgroundMode() const { return m_targetDc->GetBackgroundMode(); } virtual const wxBrush& GetBrush() const { return m_targetDc->GetBrush(); } virtual wxCoord GetCharHeight() const { return m_targetDc->GetCharHeight(); } virtual wxCoord GetCharWidth() const { return m_targetDc->GetCharWidth(); } void GetClippingBox(wxCoord *x, wxCoord *y, wxCoord *w, wxCoord *h) const { m_targetDc->GetClippingBox(x, y, w, h); } void GetClippingBox(wxRect& rect) const { m_targetDc->GetClippingBox(rect); } void GetClippingBox(long *x, long *y, long *w, long *h) const { m_targetDc->GetClippingBox(x, y, w, h); } virtual int GetDepth() const { return m_targetDc->GetDepth(); } void GetDeviceOrigin(wxCoord *x, wxCoord *y) const { m_targetDc->GetDeviceOrigin(x, y); } wxPoint GetDeviceOrigin() const { return m_targetDc->GetDeviceOrigin(); } void GetDeviceOrigin(long *x, long *y) const { m_targetDc->GetDeviceOrigin(x, y); } virtual const wxFont& GetFont() const { return m_targetDc->GetFont(); } virtual int GetLogicalFunction() const { return m_targetDc->GetLogicalFunction(); } void GetLogicalOrigin(wxCoord *x, wxCoord *y) const { m_targetDc->GetLogicalOrigin(x, y); } wxPoint GetLogicalOrigin() const { return m_targetDc->GetLogicalOrigin(); } void GetLogicalOrigin(long *x, long *y) const { m_targetDc->GetLogicalOrigin(x, y); } virtual void GetLogicalScale(double *x, double *y) { m_targetDc->GetLogicalScale(x, y); } virtual int GetMapMode() const { return m_targetDc->GetMapMode(); } virtual void GetMultiLineTextExtent(const wxString& text, wxCoord *width, wxCoord *height, wxCoord *heightLine = NULL, wxFont *font = NULL) { m_targetDc->GetMultiLineTextExtent(text, width, height, heightLine, font); } #if WXWIN_COMPATIBILITY_2_4 virtual bool GetOptimization() { return m_targetDc->GetOptimization(); } #endif // WXWIN_COMPATIBILITY_2_4 virtual wxSize GetPPI() const { return m_targetDc->GetPPI(); } bool GetPartialTextExtents(const wxString& text, wxArrayInt& widths) const { return m_targetDc->GetPartialTextExtents(text, widths); } virtual const wxPen& GetPen() const { return m_targetDc->GetPen(); } bool GetPixel(wxCoord x, wxCoord y, wxColour *col) const { return m_targetDc->GetPixel(x, y, col); } bool GetPixel(const wxPoint& pt, wxColour *col) const { return m_targetDc->GetPixel(pt, col); } void GetSize(int *width, int *height) const { m_targetDc->GetSize(width, height); } wxSize GetSize() const { return m_targetDc->GetSize(); } void GetSizeMM(int* width, int* height) const { m_targetDc->GetSizeMM(width, height); } wxSize GetSizeMM() const { return m_targetDc->GetSizeMM(); } virtual const wxColour& GetTextBackground() const { return m_targetDc->GetTextBackground(); } void GetTextExtent(const wxString& string, wxCoord *x, wxCoord *y, wxCoord *descent = NULL, wxCoord *externalLeading = NULL, wxFont *theFont = NULL) const { m_targetDc->GetTextExtent(string, x, y, descent, externalLeading, theFont); } void GetTextExtent(const wxString& string, long *x, long *y, long *descent = NULL, long *externalLeading = NULL, wxFont *theFont = NULL) const { m_targetDc->GetTextExtent(string, x, y, descent, externalLeading, theFont); } virtual const wxColour& GetTextForeground() const { return m_targetDc->GetTextForeground(); } virtual void GetUserScale(double *x, double *y) const { m_targetDc->GetUserScale(x, y); } void GradientFillConcentric(const wxRect& rect, const wxColour& initialColour, const wxColour& destColour) { m_targetDc->GradientFillConcentric(rect, initialColour, destColour); } void GradientFillConcentric(const wxRect& rect, const wxColour& initialColour, const wxColour& destColour, const wxPoint& circleCenter) { m_targetDc->GradientFillConcentric(rect, initialColour, destColour, circleCenter); } void GradientFillLinear(const wxRect& rect, const wxColour& initialColour, const wxColour& destColour, wxDirection nDirection = wxEAST) { m_targetDc->GradientFillLinear(rect, initialColour, destColour, nDirection); } wxCoord LogicalToDeviceX(wxCoord x) const { return m_targetDc->LogicalToDeviceX(x); } wxCoord LogicalToDeviceXRel(wxCoord x) const { return m_targetDc->LogicalToDeviceXRel(x); } wxCoord LogicalToDeviceY(wxCoord y) const { return m_targetDc->LogicalToDeviceY(y); } wxCoord LogicalToDeviceYRel(wxCoord y) const { return m_targetDc->LogicalToDeviceYRel(y); } wxCoord MaxX() const { return m_targetDc->MaxX(); } wxCoord MaxY() const { return m_targetDc->MaxY(); } wxCoord MinX() const { return m_targetDc->MinX(); } wxCoord MinY() const { return m_targetDc->MinY(); } virtual bool Ok() const { return m_targetDc->Ok(); } void ResetBoundingBox() { m_targetDc->ResetBoundingBox(); } #if defined(__WXWINCE__) void Rotate( wxList* points, double angle, wxPoint center = wxPoint(0,0) ) { m_targetDc->Rotate(points, angle, center); } #endif // defined(__WXWINCE__) virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp) { m_targetDc->SetAxisOrientation(xLeftRight, yBottomUp); } virtual void SetBackground(const wxBrush& brush) { m_targetDc->SetBackground(brush); } virtual void SetBackgroundMode(int mode) { m_targetDc->SetBackgroundMode(mode); } virtual void SetBrush(const wxBrush& brush) { m_targetDc->SetBrush(brush); } void SetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { m_targetDc->SetClippingRegion(x, y, width, height); } void SetClippingRegion(const wxPoint& pt, const wxSize& sz) { m_targetDc->SetClippingRegion(pt, sz); } void SetClippingRegion(const wxRect& rect) { m_targetDc->SetClippingRegion(rect); } void SetClippingRegion(const wxRegion& region) { m_targetDc->SetClippingRegion(region); } virtual void SetDeviceOrigin(wxCoord x, wxCoord y) { m_targetDc->SetDeviceOrigin(x, y); } virtual void SetFont(const wxFont& font) { m_targetDc->SetFont(font); } virtual void SetLogicalFunction(int function) { m_targetDc->SetLogicalFunction(function); } virtual void SetLogicalOrigin(wxCoord x, wxCoord y) { m_targetDc->SetLogicalOrigin(x, y); } virtual void SetLogicalScale(double x, double y) { m_targetDc->SetLogicalScale(x, y); } virtual void SetMapMode(int mode) { m_targetDc->SetMapMode(mode); } #if WXWIN_COMPATIBILITY_2_4 virtual void SetOptimization(bool opt) { m_targetDc->SetOptimization(opt); } #endif // WXWIN_COMPATIBILITY_2_4 #if wxUSE_PALETTE virtual void SetPalette(const wxPalette& palette) { m_targetDc->SetPalette(palette); } #endif // wxUSE_PALETTE virtual void SetPen(const wxPen& pen) { m_targetDc->SetPen(pen); } virtual void SetTextBackground(const wxColour& colour) { m_targetDc->SetTextBackground(colour); } virtual void SetTextForeground(const wxColour& colour) { m_targetDc->SetTextForeground(colour); } virtual void SetUserScale(double x, double y) { m_targetDc->SetUserScale(x, y); } virtual bool StartDoc(const wxString& message) { return m_targetDc->StartDoc(message); } virtual void StartPage() { m_targetDc->StartPage(); } protected: virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, wxDC *source, wxCoord xsrc, wxCoord ysrc, int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord) { return m_targetDc->Blit(xdest, ydest, width, height, source, xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask); } virtual void DoCrossHair(wxCoord x, wxCoord y) { m_targetDc->CrossHair(x, y); } virtual void DoDrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc) { m_targetDc->DrawArc(x1, y1, x2, y2, xc, yc); } virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask = false) { m_targetDc->DrawBitmap(bmp, x, y, useMask); } virtual void DoDrawCheckMark(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { m_targetDc->DrawCheckMark(x, y, width, height); } virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { m_targetDc->DrawEllipse(x, y, width, height); } virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, double sa, double ea) { m_targetDc->DrawEllipticArc(x, y, w, h, sa, ea); } virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) { m_targetDc->DrawIcon(icon, x, y); } virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) { m_targetDc->DrawLine(x1, y1, x2, y2); } virtual void DoDrawLines(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset) { m_targetDc->DrawLines(n, points, xoffset, yoffset); } virtual void DoDrawPoint(wxCoord x, wxCoord y) { m_targetDc->DrawPoint(x, y); } virtual void DoDrawPolyPolygon(int n, int count[], wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle) { m_targetDc->DrawPolyPolygon(n, count, points, xoffset, yoffset, fillStyle); } virtual void DoDrawPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle = wxODDEVEN_RULE) { m_targetDc->DrawPolygon(n, points, xoffset, yoffset, fillStyle); } virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { m_targetDc->DrawRectangle(x, y, width, height); } virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle) { m_targetDc->DrawRotatedText(text, x, y, angle); } virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius) { m_targetDc->DrawRoundedRectangle(x, y, width, height, radius); } #if wxUSE_SPLINES virtual void DoDrawSpline(wxList *points) { m_targetDc->DrawSpline(points); } #endif // wxUSE_SPLINES virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y) { m_targetDc->DrawText(text, x, y); } virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, int style = wxFLOOD_SURFACE) { return m_targetDc->FloodFill(x, y, col, style); } virtual void DoGetClippingBox(wxCoord *x, wxCoord *y, wxCoord *w, wxCoord *h) const { m_targetDc->GetClippingBox(x, y, w, h); } virtual void DoGetDeviceOrigin(wxCoord *x, wxCoord *y) const { m_targetDc->GetDeviceOrigin(x, y); } virtual void DoGetLogicalOrigin(wxCoord *x, wxCoord *y) const { m_targetDc->GetLogicalOrigin(x, y); } virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const { return m_targetDc->GetPartialTextExtents(text, widths); } virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const { return m_targetDc->GetPixel(x, y, col); } virtual void DoGetSize(int *width, int *height) const { m_targetDc->GetSize(width, height); } virtual void DoGetSizeMM(int* width, int* height) const { m_targetDc->GetSizeMM(width, height); } virtual void DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y, wxCoord *descent = NULL, wxCoord *externalLeading = NULL, wxFont *theFont = NULL) const { m_targetDc->GetTextExtent(string, x, y, descent, externalLeading, theFont); } virtual void DoGradientFillLinear(const wxRect& rect, const wxColour& initialColour, const wxColour& destColour, wxDirection nDirection = wxEAST) { m_targetDc->GradientFillLinear(rect, initialColour, destColour, nDirection); } virtual void DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { m_targetDc->SetClippingRegion(x, y, width, height); } virtual void DoSetClippingRegionAsRegion(const wxRegion& region) { m_targetDc->SetClippingRegion(region); } }; // ---------------------------------------------------------------------------- // Double buffered PaintDC. // ---------------------------------------------------------------------------- // Creates a double buffered wxPaintDC, optionally allowing the // user to specify their own buffer to use. class wxBufferedPaintDC : public wxBufferedDC { public: // If no bitmap is supplied by the user, a temporary one will be created. wxBufferedPaintDC(wxWindow *window, const wxBitmap& buffer, int style = wxBUFFER_CLIENT_AREA) : m_paintdc(window) { // If we're buffering the virtual window, scale the paint DC as well if (style & wxBUFFER_VIRTUAL_AREA) window->PrepareDC( m_paintdc ); if( buffer != wxNullBitmap ) Init(&m_paintdc, buffer, style); else Init(window, &m_paintdc, window->GetClientSize(), style); } // If no bitmap is supplied by the user, a temporary one will be created. wxBufferedPaintDC(wxWindow *window, int style = wxBUFFER_CLIENT_AREA) : m_paintdc(window) { // If we're using the virtual window, scale the paint DC as well if (style & wxBUFFER_VIRTUAL_AREA) window->PrepareDC( m_paintdc ); Init(window, &m_paintdc, window->GetClientSize(), style); } // default copy ctor ok. virtual ~wxBufferedPaintDC() { // We must UnMask here, else by the time the base class // does it, the PaintDC will have already been destroyed. UnMask(); } private: wxPaintDC m_paintdc; DECLARE_NO_COPY_CLASS(wxBufferedPaintDC) }; // // wxAutoBufferedPaintDC is a wxPaintDC in toolkits which have double- // buffering by default. Otherwise it is a wxBufferedPaintDC. Thus, // you can only expect it work with a simple constructor that // accepts single wxWindow* argument. // #if wxALWAYS_NATIVE_DOUBLE_BUFFER #define wxAutoBufferedPaintDCBase wxPaintDC #else #define wxAutoBufferedPaintDCBase wxBufferedPaintDC #endif #ifdef __WXDEBUG__ class wxAutoBufferedPaintDC : public wxAutoBufferedPaintDCBase { public: wxAutoBufferedPaintDC(wxWindow* win) : wxAutoBufferedPaintDCBase(win) { TestWinStyle(win); } virtual ~wxAutoBufferedPaintDC() { } private: void TestWinStyle(wxWindow* win) { // Help the user to get the double-buffering working properly. wxASSERT_MSG( win->GetBackgroundStyle() == wxBG_STYLE_CUSTOM, wxT("In constructor, you need to call GetBackgroundStyle(wxBG_STYLE_CUSTOM), ") wxT("and also, if needed, paint the background manually in the paint event handler.")); } DECLARE_NO_COPY_CLASS(wxAutoBufferedPaintDC) }; #else // !__WXDEBUG__ // In release builds, just use typedef typedef wxAutoBufferedPaintDCBase wxAutoBufferedPaintDC; #endif #endif // _WX_DCBUFFER_H_