X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/401889f079da7619db7aa637fd8a25951bab625d..12bb29f5432174ecbd65549bda832d70d34a98ae:/src/msw/graphics.cpp?ds=sidebyside diff --git a/src/msw/graphics.cpp b/src/msw/graphics.cpp index c1c7df147c..8f1844b093 100644 --- a/src/msw/graphics.cpp +++ b/src/msw/graphics.cpp @@ -78,6 +78,31 @@ inline Color wxColourToColor(const wxColour& col) return Color(col.Alpha(), col.Red(), col.Green(), col.Blue()); } +// Do not use this pointer directly, it's only used by +// GetDrawTextStringFormat() and the cleanup code in wxGDIPlusRendererModule. +StringFormat* gs_drawTextStringFormat = NULL; + +// Get the string format used for the text drawing and measuring functions: +// notice that it must be the same one for all of them, otherwise the drawn +// text might be of different size than what measuring it returned. +inline StringFormat* GetDrawTextStringFormat() +{ + if ( !gs_drawTextStringFormat ) + { + gs_drawTextStringFormat = new StringFormat(StringFormat::GenericTypographic()); + + // This doesn't make any difference for DrawText() actually but we want + // this behaviour when measuring text. + gs_drawTextStringFormat->SetFormatFlags + ( + gs_drawTextStringFormat->GetFormatFlags() + | StringFormatFlagsMeasureTrailingSpaces + ); + } + + return gs_drawTextStringFormat; +} + } // anonymous namespace //----------------------------------------------------------------------------- @@ -272,7 +297,7 @@ private: GraphicsPath* m_brushPath; }; -class WXDLLIMPEXP_CORE wxGDIPlusBitmapData : public wxGraphicsObjectRefData +class WXDLLIMPEXP_CORE wxGDIPlusBitmapData : public wxGraphicsBitmapData { public: wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, Bitmap* bitmap ); @@ -280,6 +305,11 @@ public: ~wxGDIPlusBitmapData (); virtual Bitmap* GetGDIPlusBitmap() { return m_bitmap; } + virtual void* GetNativeBitmap() const { return m_bitmap; } + +#if wxUSE_IMAGE + wxImage ConvertToImage() const; +#endif // wxUSE_IMAGE private : Bitmap* m_bitmap; @@ -290,14 +320,27 @@ class wxGDIPlusFontData : public wxGraphicsObjectRefData { public: wxGDIPlusFontData( wxGraphicsRenderer* renderer, - const wxGDIPlusContext* gc, const wxFont &font, const wxColour& col ); + wxGDIPlusFontData(wxGraphicsRenderer* renderer, + const wxString& name, + REAL sizeInPixels, + int style, + const wxColour& col); ~wxGDIPlusFontData(); virtual Brush* GetGDIPlusBrush() { return m_textBrush; } virtual Font* GetGDIPlusFont() { return m_font; } + private : + // Common part of all ctors, flags here is a combination of values of + // FontStyle GDI+ enum. + void Init(const wxString& name, + REAL size, + int style, + const wxColour& col, + Unit fontUnit); + Brush* m_textBrush; Font* m_font; }; @@ -309,7 +352,7 @@ public: wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc, wxDouble width, wxDouble height ); wxGDIPlusContext( wxGraphicsRenderer* renderer, HWND hwnd ); wxGDIPlusContext( wxGraphicsRenderer* renderer, Graphics* gr); - wxGDIPlusContext(); + wxGDIPlusContext(wxGraphicsRenderer* renderer); virtual ~wxGDIPlusContext(); @@ -330,6 +373,13 @@ public: // stroke lines connecting each of the points virtual void StrokeLines( size_t n, const wxPoint2DDouble *points); + // We don't have any specific implementation for this one in wxMSW but + // override it just to avoid warnings about hiding the base class virtual. + virtual void StrokeLines( size_t n, const wxPoint2DDouble *beginPoints, const wxPoint2DDouble *endPoints) + { + wxGraphicsContext::StrokeLines(n, beginPoints, endPoints); + } + // draws a polygon virtual void DrawLines( size_t n, const wxPoint2DDouble *points, wxPolygonFillMode fillStyle = wxODDEVEN_RULE ); @@ -362,9 +412,6 @@ public: virtual void PushState(); virtual void PopState(); - // sets the font of this context - virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) const; - virtual void GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height, wxDouble *descent, wxDouble *externalLeading ) const; virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const; @@ -377,30 +424,57 @@ protected: wxDouble m_fontScaleRatio; -private: - void Init(); - void SetDefaults(); + // Used from ctors (including those in the derived classes) and takes + // ownership of the graphics pointer that must be non-NULL. + void Init(Graphics* graphics, int width, int height); - virtual void DoDrawText(const wxString& str, wxDouble x, wxDouble y) - { DoDrawFilledText(str, x, y, wxNullGraphicsBrush); } - virtual void DoDrawFilledText(const wxString& str, wxDouble x, wxDouble y, - const wxGraphicsBrush& backgroundBrush); +private: + virtual void DoDrawText(const wxString& str, wxDouble x, wxDouble y); Graphics* m_context; wxStack m_stateStack; GraphicsState m_state1; GraphicsState m_state2; - DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusContext) + wxDECLARE_NO_COPY_CLASS(wxGDIPlusContext); }; -class wxGDIPlusMeasuringContext : public wxGDIPlusContext +#if wxUSE_IMAGE + +class wxGDIPlusImageContext : public wxGDIPlusContext { public: - wxGDIPlusMeasuringContext( wxGraphicsRenderer* renderer ) : wxGDIPlusContext( renderer , m_hdc = GetDC(NULL), 1000, 1000 ) + wxGDIPlusImageContext(wxGraphicsRenderer* renderer, wxImage& image) : + wxGDIPlusContext(renderer), + m_image(image), + m_bitmap(renderer, image) + { + Init + ( + new Graphics(m_bitmap.GetGDIPlusBitmap()), + image.GetWidth(), + image.GetHeight() + ); + } + + virtual ~wxGDIPlusImageContext() { + m_image = m_bitmap.ConvertToImage(); } - wxGDIPlusMeasuringContext() + +private: + wxImage& m_image; + wxGDIPlusBitmapData m_bitmap; + + wxDECLARE_NO_COPY_CLASS(wxGDIPlusImageContext); +}; + +#endif // wxUSE_IMAGE + +class wxGDIPlusMeasuringContext : public wxGDIPlusContext +{ +public: + wxGDIPlusMeasuringContext( wxGraphicsRenderer* renderer ) : wxGDIPlusContext( renderer , m_hdc = GetDC(NULL), 1000, 1000 ) { } @@ -411,7 +485,6 @@ public: private: HDC m_hdc ; - DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusMeasuringContext) } ; class wxGDIPlusPrintingContext : public wxGDIPlusContext @@ -463,6 +536,10 @@ public : virtual wxGraphicsContext * CreateContext( wxWindow* window ); +#if wxUSE_IMAGE + virtual wxGraphicsContext * CreateContextFromImage(wxImage& image); +#endif // wxUSE_IMAGE + virtual wxGraphicsContext * CreateMeasuringContext(); // Path @@ -492,16 +569,18 @@ public : // create a native bitmap representation virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ); +#if wxUSE_IMAGE + virtual wxGraphicsBitmap CreateBitmapFromImage(const wxImage& image); + virtual wxImage CreateImageFromBitmap(const wxGraphicsBitmap& bmp); +#endif // wxUSE_IMAGE - // stub: should not be called directly - virtual wxGraphicsFont CreateFont( const wxFont& WXUNUSED(font), - const wxColour& WXUNUSED(col) ) - { wxFAIL; return wxNullGraphicsFont; } + virtual wxGraphicsFont CreateFont( const wxFont& font, + const wxColour& col); - // this is used to really create the font - wxGraphicsFont CreateGDIPlusFont( const wxGDIPlusContext* gc, - const wxFont &font, - const wxColour &col ); + virtual wxGraphicsFont CreateFont(double size, + const wxString& facename, + int flags = wxFONTFLAG_DEFAULT, + const wxColour& col = *wxBLACK); // create a graphics bitmap from a native bitmap virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap ); @@ -843,13 +922,23 @@ wxGDIPlusBrushData::CreateRadialGradientBrush(wxDouble xo, wxDouble yo, // wxGDIPlusFont implementation //----------------------------------------------------------------------------- +void +wxGDIPlusFontData::Init(const wxString& name, + REAL size, + int style, + const wxColour& col, + Unit fontUnit) +{ + m_font = new Font(name.wc_str(), size, style, fontUnit); + + m_textBrush = new SolidBrush(wxColourToColor(col)); +} + wxGDIPlusFontData::wxGDIPlusFontData( wxGraphicsRenderer* renderer, - const wxGDIPlusContext* gc, const wxFont &font, const wxColour& col ) : wxGraphicsObjectRefData( renderer ) { - wxWCharBuffer s = font.GetFaceName().wc_str( *wxConvUI ); int style = FontStyleRegular; if ( font.GetStyle() == wxFONTSTYLE_ITALIC ) style |= FontStyleItalic; @@ -858,25 +947,17 @@ wxGDIPlusFontData::wxGDIPlusFontData( wxGraphicsRenderer* renderer, if ( font.GetWeight() == wxFONTWEIGHT_BOLD ) style |= FontStyleBold; - Graphics* context = gc->GetGraphics(); - - Unit fontUnit = context->GetPageUnit(); - // if fontUnit is UnitDisplay, then specify UnitPixel, otherwise - // you'll get a "InvalidParameter" from GDI+ - if ( fontUnit == UnitDisplay ) - fontUnit = UnitPixel; - - REAL points = font.GetPointSize(); - - // This scaling is needed when we use unit other than the - // default UnitPoint. It works for both display and printing. - REAL size = points * (100.0 / 72.0); - - // NB: font unit should match context's unit. We can use UnitPixel, - // as that is what the print context should use. - m_font = new Font( s, size, style, fontUnit ); + Init(font.GetFaceName(), font.GetPointSize(), style, col, UnitPoint); +} - m_textBrush = new SolidBrush(wxColourToColor(col)); +wxGDIPlusFontData::wxGDIPlusFontData(wxGraphicsRenderer* renderer, + const wxString& name, + REAL sizeInPixels, + int style, + const wxColour& col) : + wxGraphicsObjectRefData(renderer) +{ + Init(name, sizeInPixels, style, col, UnitPixel); } wxGDIPlusFontData::~wxGDIPlusFontData() @@ -895,13 +976,13 @@ wxGDIPlusFontData::~wxGDIPlusFontData() //----------------------------------------------------------------------------- wxGDIPlusBitmapData::wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, Bitmap* bitmap ) : - wxGraphicsObjectRefData( renderer ), m_bitmap( bitmap ) + wxGraphicsBitmapData( renderer ), m_bitmap( bitmap ) { m_helper = NULL; } wxGDIPlusBitmapData::wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, - const wxBitmap &bmp) : wxGraphicsObjectRefData( renderer ) + const wxBitmap &bmp) : wxGraphicsBitmapData( renderer ) { m_bitmap = NULL; m_helper = NULL; @@ -1000,6 +1081,28 @@ wxGDIPlusBitmapData::wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, m_bitmap = image; } +#if wxUSE_IMAGE + +wxImage wxGDIPlusBitmapData::ConvertToImage() const +{ + // We could use Bitmap::LockBits() and convert to wxImage directly but + // passing by wxBitmap is easier. It would be nice to measure performance + // of the two methods but for this the second one would need to be written + // first... + HBITMAP hbmp; + if ( m_bitmap->GetHBITMAP(Color(0xffffffff), &hbmp) != Gdiplus::Ok ) + return wxNullImage; + + wxBitmap bmp; + bmp.SetWidth(m_bitmap->GetWidth()); + bmp.SetHeight(m_bitmap->GetHeight()); + bmp.SetHBITMAP(hbmp); + bmp.SetDepth(IsAlphaPixelFormat(m_bitmap->GetPixelFormat()) ? 32 : 24); + return bmp.ConvertToImage(); +} + +#endif // wxUSE_IMAGE + wxGDIPlusBitmapData::~wxGDIPlusBitmapData() { delete m_bitmap; @@ -1247,9 +1350,6 @@ void * wxGDIPlusMatrixData::GetNativeMatrix() const // wxGDIPlusContext implementation //----------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusContext,wxGraphicsContext) -IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusMeasuringContext,wxGDIPlusContext) - class wxGDIPlusOffsetHelper { public : @@ -1273,69 +1373,54 @@ public : wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc, wxDouble width, wxDouble height ) : wxGraphicsContext(renderer) { - Init(); - m_context = new Graphics( hdc); - m_width = width; - m_height = height; - SetDefaults(); + Init(new Graphics(hdc), width, height); } wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, const wxDC& dc ) : wxGraphicsContext(renderer) { - Init(); - wxMSWDCImpl *msw = wxDynamicCast( dc.GetImpl() , wxMSWDCImpl ); HDC hdc = (HDC) msw->GetHDC(); - - m_context = new Graphics(hdc); wxSize sz = dc.GetSize(); - m_width = sz.x; - m_height = sz.y; - SetDefaults(); + Init(new Graphics(hdc), sz.x, sz.y); } wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, HWND hwnd ) : wxGraphicsContext(renderer) { - Init(); - m_enableOffset = true; - m_context = new Graphics( hwnd); RECT rect = wxGetWindowRect(hwnd); - m_width = rect.right - rect.left; - m_height = rect.bottom - rect.top; - SetDefaults(); + Init(new Graphics(hwnd), rect.right - rect.left, rect.bottom - rect.top); + m_enableOffset = true; } wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, Graphics* gr ) : wxGraphicsContext(renderer) { - Init(); - m_context = gr; - SetDefaults(); + Init(gr, 0, 0); } -wxGDIPlusContext::wxGDIPlusContext() : wxGraphicsContext(NULL) +wxGDIPlusContext::wxGDIPlusContext(wxGraphicsRenderer* renderer) + : wxGraphicsContext(renderer) { - Init(); + // Derived class must call Init() later but just set m_context to NULL for + // safety to avoid crashing in our dtor if Init() ends up not being called. + m_context = NULL; } -void wxGDIPlusContext::Init() +void wxGDIPlusContext::Init(Graphics* graphics, int width, int height) { - m_context = NULL; + m_context = graphics; m_state1 = 0; - m_state2= 0; - m_height = 0; - m_width = 0; + m_state2 = 0; + m_width = width; + m_height = height; m_fontScaleRatio = 1.0; -} -void wxGDIPlusContext::SetDefaults() -{ m_context->SetTextRenderingHint(TextRenderingHintSystemDefault); m_context->SetPixelOffsetMode(PixelOffsetModeHalf); m_context->SetSmoothingMode(SmoothingModeHighQuality); + m_context->SetInterpolationMode(InterpolationModeHighQuality); m_state1 = m_context->Save(); m_state2 = m_context->Save(); } @@ -1481,10 +1566,44 @@ bool wxGDIPlusContext::SetAntialiasMode(wxAntialiasMode antialias) return true; } -bool wxGDIPlusContext::SetInterpolationQuality(wxInterpolationQuality WXUNUSED(interpolation)) +bool wxGDIPlusContext::SetInterpolationQuality(wxInterpolationQuality interpolation) { - // placeholder - return false; + if (m_interpolation == interpolation) + return true; + + InterpolationMode interpolationMode = InterpolationModeDefault; + switch (interpolation) + { + case wxINTERPOLATION_DEFAULT: + interpolationMode = InterpolationModeDefault; + break; + + case wxINTERPOLATION_NONE: + interpolationMode = InterpolationModeNearestNeighbor; + break; + + case wxINTERPOLATION_FAST: + interpolationMode = InterpolationModeLowQuality; + break; + + case wxINTERPOLATION_GOOD: + interpolationMode = InterpolationModeHighQuality; + break; + + case wxINTERPOLATION_BEST: + interpolationMode = InterpolationModeHighQualityBicubic; + break; + + default: + return false; + } + + if ( m_context->SetInterpolationMode(interpolationMode) != Gdiplus::Ok ) + return false; + + m_interpolation = interpolation; + + return true; } bool wxGDIPlusContext::SetCompositionMode(wxCompositionMode op) @@ -1644,17 +1763,8 @@ void wxGDIPlusContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxD DeleteObject(iconInfo.hbmMask); } -wxGraphicsFont wxGDIPlusContext::CreateFont( const wxFont &font, - const wxColour &col ) const -{ - wxGDIPlusRenderer* renderer = - static_cast(GetRenderer()); - return renderer->CreateGDIPlusFont(this, font, col); -} - -void wxGDIPlusContext::DoDrawFilledText(const wxString& str, - wxDouble x, wxDouble y, - const wxGraphicsBrush& brush) +void wxGDIPlusContext::DoDrawText(const wxString& str, + wxDouble x, wxDouble y ) { if (m_composition == wxCOMPOSITION_DEST) return; @@ -1667,18 +1777,15 @@ void wxGDIPlusContext::DoDrawFilledText(const wxString& str, wxGDIPlusFontData * const fontData = (wxGDIPlusFontData *)m_font.GetRefData(); - wxGDIPlusBrushData * const - brushData = (wxGDIPlusBrushData *)brush.GetRefData(); - + m_context->DrawString ( str.wc_str(*wxConvUI), // string to draw, always Unicode -1, // length: string is NUL-terminated fontData->GetGDIPlusFont(), PointF(x, y), - StringFormat::GenericTypographic(), - brushData ? brushData->GetGDIPlusBrush() - : fontData->GetGDIPlusBrush() + GetDrawTextStringFormat(), + fontData->GetGDIPlusBrush() ); } @@ -1695,12 +1802,14 @@ void wxGDIPlusContext::GetTextExtent( const wxString &str, wxDouble *width, wxDo REAL factorY = m_fontScaleRatio; - REAL rDescent = ffamily.GetCellDescent(FontStyleRegular) * - f->GetSize() / ffamily.GetEmHeight(FontStyleRegular); - REAL rAscent = ffamily.GetCellAscent(FontStyleRegular) * - f->GetSize() / ffamily.GetEmHeight(FontStyleRegular); - REAL rHeight = ffamily.GetLineSpacing(FontStyleRegular) * - f->GetSize() / ffamily.GetEmHeight(FontStyleRegular); + // Notice that we must use the real font style or the results would be + // incorrect for italic/bold fonts. + const INT style = f->GetStyle(); + const REAL size = f->GetSize(); + const REAL emHeight = ffamily.GetEmHeight(style); + REAL rDescent = ffamily.GetCellDescent(style) * size / emHeight; + REAL rAscent = ffamily.GetCellAscent(style) * size / emHeight; + REAL rHeight = ffamily.GetLineSpacing(style) * size / emHeight; if ( height ) *height = rHeight * factorY; @@ -1717,11 +1826,9 @@ void wxGDIPlusContext::GetTextExtent( const wxString &str, wxDouble *width, wxDo else { RectF layoutRect(0,0, 100000.0f, 100000.0f); - StringFormat strFormat( StringFormat::GenericTypographic() ); - strFormat.SetFormatFlags( StringFormatFlagsMeasureTrailingSpaces | strFormat.GetFormatFlags() ); RectF bounds ; - m_context->MeasureString((const wchar_t *) s , wcslen(s) , f, layoutRect, &strFormat, &bounds ) ; + m_context->MeasureString((const wchar_t *) s , wcslen(s) , f, layoutRect, GetDrawTextStringFormat(), &bounds ) ; if ( width ) *width = bounds.Width; if ( height ) @@ -1745,7 +1852,7 @@ void wxGDIPlusContext::GetPartialTextExtents(const wxString& text, wxArrayDouble wxASSERT_MSG(text.length() == len , wxT("GetPartialTextExtents not yet implemented for multichar situations")); RectF layoutRect(0,0, 100000.0f, 100000.0f); - StringFormat strFormat( StringFormat::GenericTypographic() ); + StringFormat strFormat( GetDrawTextStringFormat() ); size_t startPosition = 0; size_t remainder = len; @@ -1763,7 +1870,6 @@ void wxGDIPlusContext::GetPartialTextExtents(const wxString& text, wxArrayDouble ranges[i].Length = startPosition+i+1 ; } strFormat.SetMeasurableCharacterRanges(span,ranges); - strFormat.SetFormatFlags( StringFormatFlagsMeasureTrailingSpaces | strFormat.GetFormatFlags() ); m_context->MeasureCharacterRanges(ws, -1 , f,layoutRect, &strFormat,span,regions) ; RectF bbox ; @@ -1906,7 +2012,7 @@ void wxGDIPlusRenderer::Unload() if ( m_gditoken ) { GdiplusShutdown(m_gditoken); - m_gditoken = NULL; + m_gditoken = 0; } m_loaded = -1; // next Load() will try again } @@ -1945,6 +2051,17 @@ wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxMemoryDC& dc) return context; } +#if wxUSE_IMAGE +wxGraphicsContext * wxGDIPlusRenderer::CreateContextFromImage(wxImage& image) +{ + ENSURE_LOADED_OR_RETURN(NULL); + wxGDIPlusContext* context = new wxGDIPlusImageContext(this, image); + context->EnableOffset(true); + return context; +} + +#endif // wxUSE_IMAGE + wxGraphicsContext * wxGDIPlusRenderer::CreateMeasuringContext() { ENSURE_LOADED_OR_RETURN(NULL); @@ -2049,21 +2166,45 @@ wxGDIPlusRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo, } wxGraphicsFont -wxGDIPlusRenderer::CreateGDIPlusFont( const wxGDIPlusContext* gc, - const wxFont &font, - const wxColour &col ) +wxGDIPlusRenderer::CreateFont( const wxFont &font, + const wxColour &col ) { ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont); if ( font.IsOk() ) { wxGraphicsFont p; - p.SetRefData(new wxGDIPlusFontData( this, gc, font, col )); + p.SetRefData(new wxGDIPlusFontData( this, font, col )); return p; } else return wxNullGraphicsFont; } +wxGraphicsFont +wxGDIPlusRenderer::CreateFont(double size, + const wxString& facename, + int flags, + const wxColour& col) +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont); + + // Convert wxFont flags to GDI+ style: + int style = FontStyleRegular; + if ( flags & wxFONTFLAG_ITALIC ) + style |= FontStyleItalic; + if ( flags & wxFONTFLAG_UNDERLINED ) + style |= FontStyleUnderline; + if ( flags & wxFONTFLAG_BOLD ) + style |= FontStyleBold; + if ( flags & wxFONTFLAG_STRIKETHROUGH ) + style |= FontStyleStrikeout; + + + wxGraphicsFont f; + f.SetRefData(new wxGDIPlusFontData(this, facename, size, style, col)); + return f; +} + wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmap( const wxBitmap &bitmap ) { ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap); @@ -2077,6 +2218,40 @@ wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmap( const wxBitmap &bitmap ) return wxNullGraphicsBitmap; } +#if wxUSE_IMAGE + +wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmapFromImage(const wxImage& image) +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap); + if ( image.IsOk() ) + { + // Notice that we rely on conversion from wxImage to wxBitmap here but + // we could probably do it more efficiently by converting from wxImage + // to GDI+ Bitmap directly, i.e. copying wxImage pixels to the buffer + // returned by Bitmap::LockBits(). However this would require writing + // code specific for this task while like this we can reuse existing + // code (see also wxGDIPlusBitmapData::ConvertToImage()). + wxGraphicsBitmap gb; + gb.SetRefData(new wxGDIPlusBitmapData(this, image)); + return gb; + } + else + return wxNullGraphicsBitmap; +} + + +wxImage wxGDIPlusRenderer::CreateImageFromBitmap(const wxGraphicsBitmap& bmp) +{ + ENSURE_LOADED_OR_RETURN(wxNullImage); + const wxGDIPlusBitmapData* const + data = static_cast(bmp.GetGraphicsData()); + + return data ? data->ConvertToImage() : wxNullImage; +} + +#endif // wxUSE_IMAGE + + wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmapFromNativeBitmap( void *bitmap ) { ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap); @@ -2108,8 +2283,19 @@ wxGraphicsBitmap wxGDIPlusRenderer::CreateSubBitmap( const wxGraphicsBitmap &bit class wxGDIPlusRendererModule : public wxModule { public: + wxGDIPlusRendererModule() + { + // We must be uninitialized before GDI+ DLL itself is unloaded. + AddDependency("wxGdiPlusModule"); + } + virtual bool OnInit() { return true; } - virtual void OnExit() { gs_GDIPlusRenderer.Unload(); } + virtual void OnExit() + { + wxDELETE(gs_drawTextStringFormat); + + gs_GDIPlusRenderer.Unload(); + } private: DECLARE_DYNAMIC_CLASS(wxGDIPlusRendererModule) @@ -2127,6 +2313,14 @@ WXHDC wxGCDC::AcquireHDC() if ( !gc ) return NULL; +#if wxUSE_CAIRO + // we can't get the HDC if it is not a GDI+ context + wxGraphicsRenderer* r1 = gc->GetRenderer(); + wxGraphicsRenderer* r2 = wxGraphicsRenderer::GetCairoRenderer(); + if (r1 == r2) + return NULL; +#endif + Graphics * const g = static_cast(gc->GetNativeContext()); return g ? g->GetHDC() : NULL; } @@ -2139,6 +2333,14 @@ void wxGCDC::ReleaseHDC(WXHDC hdc) wxGraphicsContext * const gc = GetGraphicsContext(); wxCHECK_RET( gc, "can't release HDC because there is no wxGraphicsContext" ); +#if wxUSE_CAIRO + // we can't get the HDC if it is not a GDI+ context + wxGraphicsRenderer* r1 = gc->GetRenderer(); + wxGraphicsRenderer* r2 = wxGraphicsRenderer::GetCairoRenderer(); + if (r1 == r2) + return; +#endif + Graphics * const g = static_cast(gc->GetNativeContext()); wxCHECK_RET( g, "can't release HDC because there is no Graphics" );