X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f98bd6d6cf33f0475b5d737a2968b42b7ea0009f..14619f10b0bdb630206607abd0ce0319d45e095a:/include/wx/dcbuffer.h diff --git a/include/wx/dcbuffer.h b/include/wx/dcbuffer.h index ed81955ffe..40cb8179cd 100644 --- a/include/wx/dcbuffer.h +++ b/include/wx/dcbuffer.h @@ -16,29 +16,15 @@ #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__) +#if defined(__WXMAC__) || defined(__WXGTK20__) || defined(__WXDFB__) #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. // ---------------------------------------------------------------------------- @@ -51,107 +37,63 @@ // does not prepare the window DC #define wxBUFFER_CLIENT_AREA 0x02 -class WXDLLEXPORT wxBufferedDC : public wxDC +// Set when not using specific buffer bitmap. Note that this +// is private style and not returned by GetStyle. +#define wxBUFFER_USES_SHARED_BUFFER 0x04 + +class WXDLLIMPEXP_CORE wxBufferedDC : public wxMemoryDC { 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) + wxBufferedDC() + : m_dc(NULL), + m_buffer(NULL), + m_style(0) { } // Construct a wxBufferedDC using a user supplied buffer. wxBufferedDC(wxDC *dc, - const wxBitmap &buffer = wxNullBitmap, + wxBitmap& buffer = wxNullBitmap, int style = wxBUFFER_CLIENT_AREA) - : wxDC(), - m_targetDc(NULL), - m_mainDc(NULL) + : m_dc(NULL), m_buffer(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) + wxBufferedDC(wxDC *dc, const wxSize& area, int style = wxBUFFER_CLIENT_AREA) + : m_dc(NULL), m_buffer(NULL) { - // All other members except dcs are initialized in Init - Init(win, dc, area, style); + Init(dc, area, style); } - // default copy ctor ok. - // The usually desired action in the dtor is to blit the buffer. virtual ~wxBufferedDC() { - UnMask(); + if ( m_dc ) + UnMask(); } + // These reimplement the actions of the ctors for two stage creation void Init(wxDC *dc, - const wxBitmap &buffer, + wxBitmap& buffer = wxNullBitmap, int style = wxBUFFER_CLIENT_AREA) { - wxASSERT_MSG( m_mainDc == NULL, - wxT("wxBufferedDC already initialised") ); - wxASSERT_MSG( buffer.Ok(), - wxT("invalid bitmap") ); - m_mainDc = dc; + InitCommon(dc, style); + m_buffer = &buffer; - m_style = style; + UseBuffer(); } - void Init(wxWindow* win, - wxDC *dc, - const wxSize &area = wxDefaultSize, - int style = wxBUFFER_CLIENT_AREA) + void Init(wxDC *dc, const wxSize &area, int style = wxBUFFER_CLIENT_AREA) { - wxASSERT_MSG( m_mainDc == NULL, - wxT("wxBufferedDC already initialised") ); - - m_mainDc = dc; - m_style = style; + InitCommon(dc, 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); + UseBuffer(area.x, area.y); } // Blits the buffer to the dc, and detaches the dc from the buffer (so it @@ -164,439 +106,38 @@ public: // Set and get the style void SetStyle(int style) { m_style = style; } - int GetStyle() const { return m_style; } + int GetStyle() const { return m_style & ~wxBUFFER_USES_SHARED_BUFFER; } private: - // Prepares wxMemoryDC. - void UseBuffer(); + // common part of Init()s + void InitCommon(wxDC *dc, int style) + { + wxASSERT_MSG( !m_dc, wxT("wxBufferedDC already initialised") ); - // Allocate m_buffer, if necessary. - void PrepareBuffer(wxWindow* win, const wxSize& area); + m_dc = dc; + m_style = style; + } - // DC to which calls are delegated. - wxDC* m_targetDc; + // check that the bitmap is valid and use it + void UseBuffer(wxCoord w = -1, wxCoord h = -1); - // This the underlying DC to which we copy everything drawn on - // this one in UnMask(). + // 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; + wxDC *m_dc; - // the buffer (selected in this DC) - const wxBitmap* m_buffer; + // the buffer (selected in this DC), initially invalid + 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 - } + int m_style; - // Sets DC to NULL - wxDC* DetachDC() - { - wxDC* retDc = m_targetDc; - AttachDC(NULL); - return retDc; - } - -#ifdef __WXGTK__ - virtual GdkWindow* GetGDKWindow() const - { - return m_targetDc->GetGDKWindow(); - } - virtual wxBitmap GetSelectedBitmap() const - { - return m_targetDc->GetSelectedBitmap(); - } -#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); } + wxSize m_area; + + DECLARE_DYNAMIC_CLASS(wxBufferedDC) + wxDECLARE_NO_COPY_CLASS(wxBufferedDC); }; @@ -606,21 +147,21 @@ protected: // Creates a double buffered wxPaintDC, optionally allowing the // user to specify their own buffer to use. -class wxBufferedPaintDC : public wxBufferedDC +class WXDLLIMPEXP_CORE 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) + wxBufferedPaintDC(wxWindow *window, 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 ) + if( buffer.IsOk() ) Init(&m_paintdc, buffer, style); else - Init(window, &m_paintdc, window->GetClientSize(), style); + Init(&m_paintdc, GetBufferedSize(window, style), style); } // If no bitmap is supplied by the user, a temporary one will be created. @@ -631,7 +172,7 @@ public: if (style & wxBUFFER_VIRTUAL_AREA) window->PrepareDC( m_paintdc ); - Init(window, &m_paintdc, window->GetClientSize(), style); + Init(&m_paintdc, GetBufferedSize(window, style), style); } // default copy ctor ok. @@ -643,10 +184,20 @@ public: UnMask(); } +protected: + // return the size needed by the buffer: this depends on whether we're + // buffering just the currently shown part or the total (scrolled) window + static wxSize GetBufferedSize(wxWindow *window, int style) + { + return style & wxBUFFER_VIRTUAL_AREA ? window->GetVirtualSize() + : window->GetClientSize(); + } + private: wxPaintDC m_paintdc; - DECLARE_NO_COPY_CLASS(wxBufferedPaintDC) + DECLARE_ABSTRACT_CLASS(wxBufferedPaintDC) + wxDECLARE_NO_COPY_CLASS(wxBufferedPaintDC); }; @@ -663,40 +214,36 @@ private: #define wxAutoBufferedPaintDCBase wxBufferedPaintDC #endif - -#ifdef __WXDEBUG__ - -class wxAutoBufferedPaintDC : public wxAutoBufferedPaintDCBase +class WXDLLIMPEXP_CORE wxAutoBufferedPaintDC : public wxAutoBufferedPaintDCBase { public: wxAutoBufferedPaintDC(wxWindow* win) : wxAutoBufferedPaintDCBase(win) { - TestWinStyle(win); + wxASSERT_MSG( win->GetBackgroundStyle() == wxBG_STYLE_PAINT, + "You need to call SetBackgroundStyle(wxBG_STYLE_PAINT) in ctor, " + "and also, if needed, paint the background in wxEVT_PAINT handler." + ); } 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) + wxDECLARE_NO_COPY_CLASS(wxAutoBufferedPaintDC); }; -#else // !__WXDEBUG__ -// In release builds, just use typedef -typedef wxAutoBufferedPaintDCBase wxAutoBufferedPaintDC; - -#endif +// Check if the window is natively double buffered and will return a wxPaintDC +// if it is, a wxBufferedPaintDC otherwise. It is the caller's responsibility +// to delete the wxDC pointer when finished with it. +inline wxDC* wxAutoBufferedPaintDCFactory(wxWindow* window) +{ + if ( window->IsDoubleBuffered() ) + return new wxPaintDC(window); + else + return new wxBufferedPaintDC(window); +} #endif // _WX_DCBUFFER_H_