X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/94a007ece4bcd6231d31bcb91516463b7f981a0e..beee38cb41aa2ce4fbe9052bf4f70e1be184b553:/src/generic/graphicc.cpp diff --git a/src/generic/graphicc.cpp b/src/generic/graphicc.cpp index a7b59e5e5a..c8f2506cc4 100644 --- a/src/generic/graphicc.cpp +++ b/src/generic/graphicc.cpp @@ -17,49 +17,33 @@ #if wxUSE_GRAPHICS_CONTEXT +#include "wx/graphics.h" + +#if wxUSE_CAIRO + +// keep cairo.h from defining dllimport as we're defining the symbols inside +// the wx dll in order to load them dynamically. +#define cairo_public + +#include "wx/cairo.h" + #ifndef WX_PRECOMP #include "wx/bitmap.h" #include "wx/icon.h" - - #include "wx/dc.h" #include "wx/dcclient.h" #include "wx/dcmemory.h" #include "wx/dcprint.h" + #ifdef __WXGTK__ + #include "wx/window.h" + #endif #endif #include "wx/private/graphics.h" #include "wx/rawbmp.h" +#include "wx/vector.h" using namespace std; -//----------------------------------------------------------------------------- -// constants -//----------------------------------------------------------------------------- - -const double RAD2DEG = 180.0 / M_PI; - -//----------------------------------------------------------------------------- -// Local functions -//----------------------------------------------------------------------------- - -static inline double dmin(double a, double b) -{ - return a < b ? a : b; -} -static inline double dmax(double a, double b) -{ - return a > b ? a : b; -} - -static inline double DegToRad(double deg) -{ - return (deg * M_PI) / 180.0; -} -static inline double RadToDeg(double deg) -{ - return (deg * 180.0) / M_PI; -} - //----------------------------------------------------------------------------- // device context implementation // @@ -87,6 +71,10 @@ static inline double RadToDeg(double deg) #endif #include +#ifdef __WXMSW__ +#include +#endif + #ifdef __WXGTK__ #include #include "wx/fontutil.h" @@ -255,6 +243,8 @@ private : double *m_userLengths; wxPen m_pen; + + wxDECLARE_NO_COPY_CLASS(wxCairoPenData); }; class WXDLLIMPEXP_CORE wxCairoBrushData : public wxGraphicsObjectRefData @@ -265,14 +255,20 @@ public: ~wxCairoBrushData (); virtual void Apply( wxGraphicsContext* context ); - void CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, - const wxColour&c1, const wxColour&c2 ); - void CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius, - const wxColour &oColor, const wxColour &cColor ); + + void CreateLinearGradientBrush(wxDouble x1, wxDouble y1, + wxDouble x2, wxDouble y2, + const wxGraphicsGradientStops& stops); + void CreateRadialGradientBrush(wxDouble xo, wxDouble yo, + wxDouble xc, wxDouble yc, wxDouble radius, + const wxGraphicsGradientStops& stops); protected: virtual void Init(); + // common part of Create{Linear,Radial}GradientBrush() + void AddGradientStops(const wxGraphicsGradientStops& stops); + private : double m_red; double m_green; @@ -286,13 +282,24 @@ class wxCairoFontData : public wxGraphicsObjectRefData { public: wxCairoFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col ); + wxCairoFontData(wxGraphicsRenderer* renderer, + double sizeInPixels, + const wxString& facename, + int flags, + const wxColour& col); ~wxCairoFontData(); - virtual void Apply( wxGraphicsContext* context ); + virtual bool Apply( wxGraphicsContext* context ); #ifdef __WXGTK__ const PangoFontDescription* GetFont() const { return m_font; } + bool GetUnderlined() const { return m_underlined; } #endif private : + void InitColour(const wxColour& col); + void InitFontComponents(const wxString& facename, + cairo_font_slant_t slant, + cairo_font_weight_t weight); + double m_size; double m_red; double m_green; @@ -302,11 +309,58 @@ private : cairo_font_face_t *m_font; #elif defined(__WXGTK__) PangoFontDescription* m_font; -#else + bool m_underlined; +#endif + + // These members are used when the font is created from its face name and + // flags (and not from wxFont) and also even when creating it from wxFont + // on the platforms not covered above. + // + // Notice that we can't use cairo_font_face_t instead of storing those, + // even though it would be simpler and need less #ifdefs, because + // cairo_toy_font_face_create() that we'd need to create it is only + // available in Cairo 1.8 and we require just 1.2 currently. If we do drop + // support for < 1.8 versions in the future it would be definitely better + // to use cairo_toy_font_face_create() instead. wxCharBuffer m_fontName; cairo_font_slant_t m_slant; cairo_font_weight_t m_weight; -#endif +}; + +class wxCairoBitmapData : public wxGraphicsObjectRefData +{ +public: + wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp ); +#if wxUSE_IMAGE + wxCairoBitmapData(wxGraphicsRenderer* renderer, const wxImage& image); +#endif // wxUSE_IMAGE + wxCairoBitmapData( wxGraphicsRenderer* renderer, cairo_surface_t* bitmap ); + ~wxCairoBitmapData(); + + virtual cairo_surface_t* GetCairoSurface() { return m_surface; } + virtual cairo_pattern_t* GetCairoPattern() { return m_pattern; } + virtual wxSize GetSize() { return wxSize(m_width, m_height); } + +#if wxUSE_IMAGE + wxImage ConvertToImage() const; +#endif // wxUSE_IMAGE + +private : + // Allocate m_buffer for the bitmap of the given size in the given format. + // + // Returns the stride used for the buffer. + int InitBuffer(int width, int height, cairo_format_t format); + + // Really create the surface using the buffer (which was supposed to be + // filled since InitBuffer() call). + void InitSurface(cairo_format_t format, int stride); + + + cairo_surface_t* m_surface; + cairo_pattern_t* m_pattern; + int m_width; + int m_height; + unsigned char* m_buffer; }; class WXDLLIMPEXP_CORE wxCairoContext : public wxGraphicsContext @@ -317,14 +371,23 @@ public: wxCairoContext( wxGraphicsRenderer* renderer, const wxPrinterDC& dc ); #ifdef __WXGTK__ wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawable ); +#endif +#ifdef __WXMSW__ + wxCairoContext( wxGraphicsRenderer* renderer, HDC context ); #endif wxCairoContext( wxGraphicsRenderer* renderer, cairo_t *context ); wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window); - wxCairoContext(); + + // If this ctor is used, Init() must be called by the derived class later. + wxCairoContext( wxGraphicsRenderer* renderer ); + virtual ~wxCairoContext(); virtual bool ShouldOffset() const { + if ( !m_enableOffset ) + return false; + int penwidth = 0 ; if ( !m_pen.IsNull() ) { @@ -336,6 +399,9 @@ public: } virtual void Clip( const wxRegion ®ion ); +#ifdef __WXMSW__ + cairo_surface_t* m_mswSurface; +#endif // clips drawings to the rect virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h ); @@ -345,7 +411,15 @@ public: virtual void * GetNativeContext(); - virtual bool SetLogicalFunction( wxRasterOperationMode function ); + virtual bool SetAntialiasMode(wxAntialiasMode antialias); + + virtual bool SetInterpolationQuality(wxInterpolationQuality interpolation); + + virtual bool SetCompositionMode(wxCompositionMode op); + + virtual void BeginLayer(wxDouble opacity); + + virtual void EndLayer(); virtual void StrokePath( const wxGraphicsPath& p ); virtual void FillPath( const wxGraphicsPath& p , wxPolygonFillMode fillStyle = wxWINDING_RULE ); @@ -363,6 +437,7 @@ public: // gets the matrix of this context virtual wxGraphicsMatrix GetTransform() const; + virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ); virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ); virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h ); virtual void PushState(); @@ -372,15 +447,47 @@ public: wxDouble *descent, wxDouble *externalLeading ) const; virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const; -private: - void Init(cairo_t *context); - +protected: virtual void DoDrawText( const wxString &str, wxDouble x, wxDouble y ); + void Init(cairo_t *context); + +private: cairo_t* m_context; - DECLARE_NO_COPY_CLASS(wxCairoContext) + wxVector m_layerOpacities; + + wxDECLARE_NO_COPY_CLASS(wxCairoContext); +}; + +#if wxUSE_IMAGE +// ---------------------------------------------------------------------------- +// wxCairoImageContext: context associated with a wxImage. +// ---------------------------------------------------------------------------- + +class wxCairoImageContext : public wxCairoContext +{ +public: + wxCairoImageContext(wxGraphicsRenderer* renderer, wxImage& image) : + wxCairoContext(renderer), + m_image(image), + m_data(renderer, image) + { + Init(cairo_create(m_data.GetCairoSurface())); + } + + virtual ~wxCairoImageContext() + { + m_image = m_data.ConvertToImage(); + } + +private: + wxImage& m_image; + wxCairoBitmapData m_data; + + wxDECLARE_NO_COPY_CLASS(wxCairoImageContext); }; +#endif // wxUSE_IMAGE //----------------------------------------------------------------------------- // wxCairoPenData implementation @@ -520,7 +627,7 @@ wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) { /* wxBitmap* bmp = pen.GetStipple(); - if ( bmp && bmp->Ok() ) + if ( bmp && bmp->IsOk() ) { wxDELETE( m_penImage ); wxDELETE( m_penBrush ); @@ -635,7 +742,7 @@ wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer, const wxBrush else { wxBitmap* bmp = brush.GetStipple(); - if ( bmp && bmp->Ok() ) + if ( bmp && bmp->IsOk() ) { wxDELETE( m_brushImage ); m_brushImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE()); @@ -664,26 +771,50 @@ void wxCairoBrushData::Apply( wxGraphicsContext* context ) } } -void wxCairoBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, - const wxColour&c1, const wxColour&c2 ) +void wxCairoBrushData::AddGradientStops(const wxGraphicsGradientStops& stops) +{ + // loop over all the stops, they include the beginning and ending ones + const unsigned numStops = stops.GetCount(); + for ( unsigned n = 0; n < numStops; n++ ) + { + const wxGraphicsGradientStop stop = stops.Item(n); + + const wxColour col = stop.GetColour(); + + cairo_pattern_add_color_stop_rgba + ( + m_brushPattern, + stop.GetPosition(), + col.Red()/255.0, + col.Green()/255.0, + col.Blue()/255.0, + col.Alpha()/255.0 + ); + } + + wxASSERT_MSG(cairo_pattern_status(m_brushPattern) == CAIRO_STATUS_SUCCESS, + wxT("Couldn't create cairo pattern")); +} + +void +wxCairoBrushData::CreateLinearGradientBrush(wxDouble x1, wxDouble y1, + wxDouble x2, wxDouble y2, + const wxGraphicsGradientStops& stops) { m_brushPattern = cairo_pattern_create_linear(x1,y1,x2,y2); - cairo_pattern_add_color_stop_rgba(m_brushPattern,0.0,c1.Red()/255.0, - c1.Green()/255.0, c1.Blue()/255.0,c1.Alpha()/255.0); - cairo_pattern_add_color_stop_rgba(m_brushPattern,1.0,c2.Red()/255.0, - c2.Green()/255.0, c2.Blue()/255.0,c2.Alpha()/255.0); - wxASSERT_MSG(cairo_pattern_status(m_brushPattern) == CAIRO_STATUS_SUCCESS, wxT("Couldn't create cairo pattern")); + + AddGradientStops(stops); } -void wxCairoBrushData::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius, - const wxColour &oColor, const wxColour &cColor ) +void +wxCairoBrushData::CreateRadialGradientBrush(wxDouble xo, wxDouble yo, + wxDouble xc, wxDouble yc, + wxDouble radius, + const wxGraphicsGradientStops& stops) { m_brushPattern = cairo_pattern_create_radial(xo,yo,0.0,xc,yc,radius); - cairo_pattern_add_color_stop_rgba(m_brushPattern,0.0,oColor.Red()/255.0, - oColor.Green()/255.0, oColor.Blue()/255.0,oColor.Alpha()/255.0); - cairo_pattern_add_color_stop_rgba(m_brushPattern,1.0,cColor.Red()/255.0, - cColor.Green()/255.0, cColor.Blue()/255.0,cColor.Alpha()/255.0); - wxASSERT_MSG(cairo_pattern_status(m_brushPattern) == CAIRO_STATUS_SUCCESS, wxT("Couldn't create cairo pattern")); + + AddGradientStops(stops); } void wxCairoBrushData::Init() @@ -695,49 +826,119 @@ void wxCairoBrushData::Init() // wxCairoFontData implementation //----------------------------------------------------------------------------- -wxCairoFontData::wxCairoFontData( wxGraphicsRenderer* renderer, const wxFont &font, - const wxColour& col ) : wxGraphicsObjectRefData(renderer) +void wxCairoFontData::InitColour(const wxColour& col) { m_red = col.Red()/255.0; m_green = col.Green()/255.0; m_blue = col.Blue()/255.0; m_alpha = col.Alpha()/255.0; +} + +void +wxCairoFontData::InitFontComponents(const wxString& facename, + cairo_font_slant_t slant, + cairo_font_weight_t weight) +{ + m_fontName = facename.mb_str(wxConvUTF8); + m_slant = slant; + m_weight = weight; +} + +wxCairoFontData::wxCairoFontData( wxGraphicsRenderer* renderer, const wxFont &font, + const wxColour& col ) : wxGraphicsObjectRefData(renderer) +{ + InitColour(col); + m_size = font.GetPointSize(); #ifdef __WXMAC__ - m_font = cairo_atsui_font_face_create_for_atsu_font_id( font.MacGetATSUFontID() ); + m_font = cairo_quartz_font_face_create_for_cgfont( font.OSXGetCGFont() ); #elif defined(__WXGTK__) m_font = pango_font_description_copy( font.GetNativeFontInfo()->description ); + m_underlined = font.GetUnderlined(); #else - m_fontName = font.GetFaceName().mb_str(wxConvUTF8); - m_slant = font.GetStyle() == wxFONTSTYLE_ITALIC ? CAIRO_FONT_SLANT_ITALIC:CAIRO_FONT_SLANT_NORMAL; - m_weight = font.GetWeight() == wxFONTWEIGHT_BOLD ? CAIRO_FONT_WEIGHT_BOLD:CAIRO_FONT_WEIGHT_NORMAL; + InitFontComponents + ( + font.GetFaceName(), + font.GetStyle() == wxFONTSTYLE_ITALIC ? CAIRO_FONT_SLANT_ITALIC + : CAIRO_FONT_SLANT_NORMAL, + font.GetWeight() == wxFONTWEIGHT_BOLD ? CAIRO_FONT_WEIGHT_BOLD + : CAIRO_FONT_WEIGHT_NORMAL + ); +#endif +} + +wxCairoFontData::wxCairoFontData(wxGraphicsRenderer* renderer, + double sizeInPixels, + const wxString& facename, + int flags, + const wxColour& col) : + wxGraphicsObjectRefData(renderer) +{ + InitColour(col); + + // Resolution for Cairo image surfaces is 72 DPI meaning that the sizes in + // points and pixels are identical, so we can just pass the size in pixels + // directly to cairo_set_font_size(). + m_size = sizeInPixels; + +#if defined(__WXGTK__) || defined(__WXMAC__) + m_font = NULL; #endif + + // There is no need to set m_underlined under wxGTK in this case, it can + // only be used if m_font != NULL. + + InitFontComponents + ( + facename, + flags & wxFONTFLAG_ITALIC ? CAIRO_FONT_SLANT_ITALIC + : CAIRO_FONT_SLANT_NORMAL, + flags & wxFONTFLAG_BOLD ? CAIRO_FONT_WEIGHT_BOLD + : CAIRO_FONT_WEIGHT_NORMAL + ); } wxCairoFontData::~wxCairoFontData() { #ifdef __WXMAC__ - cairo_font_face_destroy( m_font ); + if ( m_font ) + cairo_font_face_destroy( m_font ); #elif defined(__WXGTK__) - pango_font_description_free( m_font ); + if ( m_font ) + pango_font_description_free( m_font ); #else #endif } -void wxCairoFontData::Apply( wxGraphicsContext* context ) +bool wxCairoFontData::Apply( wxGraphicsContext* context ) { cairo_t * ctext = (cairo_t*) context->GetNativeContext(); cairo_set_source_rgba(ctext,m_red,m_green, m_blue,m_alpha); #ifdef __WXGTK__ - // the rest is done using Pango layouts + if ( m_font ) + { + // Nothing to do, the caller uses Pango layout functions to do + // everything. + return true; + } #elif defined(__WXMAC__) - cairo_set_font_face(ctext, m_font); - cairo_set_font_size(ctext, m_size ); -#else - cairo_select_font_face(ctext, m_fontName, m_slant, m_weights ); - cairo_set_font_size(ctext, m_size ); + if ( m_font ) + { + cairo_set_font_face(ctext, m_font); + cairo_set_font_size(ctext, m_size ); + return true; + } #endif + + // If we get here, we must be on a platform without native font support or + // we're using toy Cairo API even under wxGTK/wxMac. + cairo_select_font_face(ctext, m_fontName, m_slant, m_weight ); + cairo_set_font_size(ctext, m_size ); + + // Indicate that we don't use native fonts for the platforms which care + // about this (currently only wxGTK). + return false; } //----------------------------------------------------------------------------- @@ -879,9 +1080,10 @@ void wxCairoPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) } } -bool wxCairoPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode WXUNUSED(fillStyle) ) const +bool wxCairoPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle ) const { - return cairo_in_stroke( m_pathContext, x, y) != 0; + cairo_set_fill_rule(m_pathContext,fillStyle==wxODDEVEN_RULE ? CAIRO_FILL_RULE_EVEN_ODD : CAIRO_FILL_RULE_WINDING); + return cairo_in_fill( m_pathContext, x, y) != 0; } //----------------------------------------------------------------------------- @@ -1006,159 +1208,593 @@ void * wxCairoMatrixData::GetNativeMatrix() const return (void*) &m_matrix; } -//----------------------------------------------------------------------------- -// wxCairoContext implementation -//----------------------------------------------------------------------------- - -class wxCairoOffsetHelper -{ -public : - wxCairoOffsetHelper( cairo_t* ctx , bool offset ) - { - m_ctx = ctx; - m_offset = offset; - if ( m_offset ) - cairo_translate( m_ctx, 0.5, 0.5 ); - } - ~wxCairoOffsetHelper( ) - { - if ( m_offset ) - cairo_translate( m_ctx, -0.5, -0.5 ); - } -public : - cairo_t* m_ctx; - bool m_offset; -} ; +// ---------------------------------------------------------------------------- +// wxCairoBitmap implementation +// ---------------------------------------------------------------------------- -wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxPrinterDC& dc ) -: wxGraphicsContext(renderer) +int wxCairoBitmapData::InitBuffer(int width, int height, cairo_format_t format) { -#ifdef __WXGTK20__ - const wxDCImpl *impl = dc.GetImpl(); - Init( (cairo_t*) impl->GetCairoContext() ); + wxUnusedVar(format); // Only really unused with Cairo < 1.6. - wxPoint org = dc.GetDeviceOrigin(); - cairo_translate( m_context, org.x, org.y ); + // Determine the stride: use cairo_format_stride_for_width() if available + // but fall back to 4*width for the earlier versions as this is what that + // function always returns, even in latest Cairo, anyhow. + int stride; +#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 6, 0) + if ( cairo_version() >= CAIRO_VERSION_ENCODE(1, 6, 0) ) + { + stride = cairo_format_stride_for_width(format, width); - double sx,sy; - dc.GetUserScale( &sx, &sy ); - cairo_scale( m_context, sx, sy ); + // All our code would totally break if stride were not a multiple of 4 + // so ensure this is the case. + if ( stride % 4 ) + { + wxFAIL_MSG("Unexpected Cairo image surface stride."); - org = dc.GetLogicalOrigin(); - cairo_translate( m_context, -org.x, -org.y ); + stride += 4 - stride % 4; + } + } + else #endif -} + stride = 4*width; -wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& dc ) -: wxGraphicsContext(renderer) -{ -#ifdef __WXGTK20__ - wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl(); - Init( gdk_cairo_create( impldc->GetGDKWindow() ) ); - -#if 0 - wxGraphicsMatrix matrix = CreateMatrix(); - - wxPoint org = dc.GetDeviceOrigin(); - matrix.Translate( org.x, org.y ); - - org = dc.GetLogicalOrigin(); - matrix.Translate( -org.x, -org.y ); - - double sx,sy; - dc.GetUserScale( &sx, &sy ); - matrix.Scale( sx, sy ); - - ConcatTransform( matrix ); -#endif -#endif + m_width = width; + m_height = height; + m_buffer = new unsigned char[height*stride]; -#ifdef __WXMAC__ - int width, height; - dc.GetSize( &width, &height ); - CGContextRef cgcontext = (CGContextRef)dc.GetWindow()->MacGetCGContextRef(); - cairo_surface_t* surface = cairo_quartz_surface_create_for_cg_context(cgcontext, width, height); - Init( cairo_create( surface ) ); - cairo_surface_destroy( surface ); -#endif + return stride; } -wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& dc ) -: wxGraphicsContext(renderer) +void wxCairoBitmapData::InitSurface(cairo_format_t format, int stride) { -#ifdef __WXGTK20__ - wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl(); - Init( gdk_cairo_create( impldc->GetGDKWindow() ) ); - -#if 0 - wxGraphicsMatrix matrix = CreateMatrix(); - - wxPoint org = dc.GetDeviceOrigin(); - matrix.Translate( org.x, org.y ); - - org = dc.GetLogicalOrigin(); - matrix.Translate( -org.x, -org.y ); - - double sx,sy; - dc.GetUserScale( &sx, &sy ); - matrix.Scale( sx, sy ); - - ConcatTransform( matrix ); -#endif -#endif - -#ifdef __WXMAC__ - int width, height; - dc.GetSize( &width, &height ); - CGContextRef cgcontext = (CGContextRef)dc.GetWindow()->MacGetCGContextRef(); - cairo_surface_t* surface = cairo_quartz_surface_create_for_cg_context(cgcontext, width, height); - Init( cairo_create( surface ) ); - cairo_surface_destroy( surface ); -#endif + m_surface = cairo_image_surface_create_for_data( + m_buffer, format, m_width, m_height, stride); + m_pattern = cairo_pattern_create_for_surface(m_surface); } -#ifdef __WXGTK20__ -wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawable ) -: wxGraphicsContext(renderer) +wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, cairo_surface_t* bitmap ) : + wxGraphicsObjectRefData( renderer ) { - Init( gdk_cairo_create( drawable ) ); + m_surface = bitmap; + m_pattern = cairo_pattern_create_for_surface(m_surface); } -#endif -wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, cairo_t *context ) -: wxGraphicsContext(renderer) +wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp ) : wxGraphicsObjectRefData( renderer ) { - Init( context ); -} + wxCHECK_RET( bmp.IsOk(), wxT("Invalid bitmap in wxCairoContext::DrawBitmap")); -wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window) -: wxGraphicsContext(renderer) -{ +#ifdef wxHAS_RAW_BITMAP + // Create a surface object and copy the bitmap pixel data to it. if the + // image has alpha (or a mask represented as alpha) then we'll use a + // different format and iterator than if it doesn't... + cairo_format_t bufferFormat = bmp.GetDepth() == 32 #ifdef __WXGTK__ - // something along these lines (copied from dcclient) - - // Some controls don't have m_wxwindow - like wxStaticBox, but the user - // code should still be able to create wxClientDCs for them, so we will - // use the parent window here then. - if (window->m_wxwindow == NULL) - { - window = window->GetParent(); - } + || bmp.GetMask() +#endif + ? CAIRO_FORMAT_ARGB32 + : CAIRO_FORMAT_RGB24; - wxASSERT_MSG( window->m_wxwindow, wxT("wxCairoContext needs a widget") ); + int stride = InitBuffer(bmp.GetWidth(), bmp.GetHeight(), bufferFormat); - Init(gdk_cairo_create(window->GTKGetDrawingWindow())); -#endif -} + wxBitmap bmpSource = bmp; // we need a non-const instance + wxUint32* data = (wxUint32*)m_buffer; -wxCairoContext::~wxCairoContext() -{ - if ( m_context ) + if ( bufferFormat == CAIRO_FORMAT_ARGB32 ) + { + // use the bitmap's alpha + wxAlphaPixelData + pixData(bmpSource, wxPoint(0, 0), wxSize(m_width, m_height)); + wxCHECK_RET( pixData, wxT("Failed to gain raw access to bitmap data.")); + + wxAlphaPixelData::Iterator p(pixData); + for (int y=0; y(m_buffer); + const unsigned char* src = image.GetData(); + + if ( bufferFormat == CAIRO_FORMAT_ARGB32 ) + { + const unsigned char* alpha = image.GetAlpha(); + + for ( int y = 0; y < m_height; y++ ) + { + wxUint32* const rowStartDst = dst; + + for ( int x = 0; x < m_width; x++ ) + { + const unsigned char a = *alpha++; + + *dst++ = a << 24 | + Premultiply(a, src[0]) << 16 | + Premultiply(a, src[1]) << 8 | + Premultiply(a, src[2]); + src += 3; + } + + dst = rowStartDst + stride / 4; + } + } + else // RGB + { + for ( int y = 0; y < m_height; y++ ) + { + wxUint32* const rowStartDst = dst; + + for ( int x = 0; x < m_width; x++ ) + { + *dst++ = src[0] << 16 | + src[1] << 8 | + src[2]; + src += 3; + } + + dst = rowStartDst + stride / 4; + } + } + + InitSurface(bufferFormat, stride); +} + +wxImage wxCairoBitmapData::ConvertToImage() const +{ + wxImage image(m_width, m_height, false /* don't clear */); + + // Get the surface type and format. + wxCHECK_MSG( cairo_surface_get_type(m_surface) == CAIRO_SURFACE_TYPE_IMAGE, + wxNullImage, + wxS("Can't convert non-image surface to image.") ); + + switch ( cairo_image_surface_get_format(m_surface) ) + { + case CAIRO_FORMAT_ARGB32: + image.SetAlpha(); + break; + + case CAIRO_FORMAT_RGB24: + // Nothing to do, we don't use alpha by default. + break; + + case CAIRO_FORMAT_A8: + case CAIRO_FORMAT_A1: + wxFAIL_MSG(wxS("Unsupported Cairo image surface type.")); + return wxNullImage; + + default: + wxFAIL_MSG(wxS("Unknown Cairo image surface type.")); + return wxNullImage; + } + + // Prepare for copying data. + const wxUint32* src = (wxUint32*)cairo_image_surface_get_data(m_surface); + wxCHECK_MSG( src, wxNullImage, wxS("Failed to get Cairo surface data.") ); + + int stride = cairo_image_surface_get_stride(m_surface); + wxCHECK_MSG( stride > 0, wxNullImage, + wxS("Failed to get Cairo surface stride.") ); + + // As we work with wxUint32 pointers and not char ones, we need to adjust + // the stride accordingly. This should be lossless as the stride must be a + // multiple of pixel size. + wxASSERT_MSG( !(stride % sizeof(wxUint32)), wxS("Unexpected stride.") ); + stride /= sizeof(wxUint32); + + unsigned char* dst = image.GetData(); + unsigned char *alpha = image.GetAlpha(); + if ( alpha ) + { + // We need to also copy alpha and undo the pre-multiplication as Cairo + // stores pre-multiplied values in this format while wxImage does not. + for ( int y = 0; y < m_height; y++ ) + { + const wxUint32* const rowStart = src; + for ( int x = 0; x < m_width; x++ ) + { + const wxUint32 argb = *src++; + + *alpha++ = (argb & 0xff000000) >> 24; + + // Copy the RGB data undoing the pre-multiplication. + *dst++ = Unpremultiply(*alpha, (argb & 0x00ff0000) >> 16); + *dst++ = Unpremultiply(*alpha, (argb & 0x0000ff00) >> 8); + *dst++ = Unpremultiply(*alpha, (argb & 0x000000ff)); + } + + src = rowStart + stride; + } + } + else // RGB + { + // Things are pretty simple in this case, just copy RGB bytes. + for ( int y = 0; y < m_height; y++ ) + { + const wxUint32* const rowStart = src; + for ( int x = 0; x < m_width; x++ ) + { + const wxUint32 argb = *src++; + + *dst++ = (argb & 0x00ff0000) >> 16; + *dst++ = (argb & 0x0000ff00) >> 8; + *dst++ = (argb & 0x000000ff); + } + + src = rowStart + stride; + } + } + + return image; +} + +#endif // wxUSE_IMAGE + +wxCairoBitmapData::~wxCairoBitmapData() +{ + if (m_pattern) + cairo_pattern_destroy(m_pattern); + + if (m_surface) + cairo_surface_destroy(m_surface); + + delete [] m_buffer; +} + +//----------------------------------------------------------------------------- +// wxCairoContext implementation +//----------------------------------------------------------------------------- + +class wxCairoOffsetHelper +{ +public : + wxCairoOffsetHelper( cairo_t* ctx , bool offset ) + { + m_ctx = ctx; + m_offset = offset; + if ( m_offset ) + cairo_translate( m_ctx, 0.5, 0.5 ); + } + ~wxCairoOffsetHelper( ) + { + if ( m_offset ) + cairo_translate( m_ctx, -0.5, -0.5 ); + } +public : + cairo_t* m_ctx; + bool m_offset; +} ; + +wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxPrinterDC& dc ) +: wxGraphicsContext(renderer) +{ +#ifdef __WXMSW__ + // wxMSW contexts always use MM_ANISOTROPIC, which messes up + // text rendering when printing using Cairo. Switch it to MM_TEXT + // map mode to avoid this problem. + HDC hdc = (HDC)dc.GetHDC(); + ::SetMapMode(hdc, MM_TEXT); + m_mswSurface = cairo_win32_printing_surface_create(hdc); + Init( cairo_create(m_mswSurface) ); +#endif + +#ifdef __WXGTK20__ + const wxDCImpl *impl = dc.GetImpl(); + Init( (cairo_t*) impl->GetCairoContext() ); +#endif + wxSize sz = dc.GetSize(); + m_width = sz.x; + m_height = sz.y; + + wxPoint org = dc.GetDeviceOrigin(); + cairo_translate( m_context, org.x, org.y ); + + double sx,sy; + dc.GetUserScale( &sx, &sy ); + +// TODO: Determine if these fixes are needed on other platforms too. +// On MSW, without this the printer context will not respect wxDC SetMapMode calls. +// For example, using dc.SetMapMode(wxMM_POINTS) can let us share printer and screen +// drawing code +#ifdef __WXMSW__ + double lsx,lsy; + dc.GetLogicalScale( &lsx, &lsy ); + sx *= lsx; + sy *= lsy; +#endif + cairo_scale( m_context, sx, sy ); + + org = dc.GetLogicalOrigin(); + cairo_translate( m_context, -org.x, -org.y ); +} + +wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& dc ) +: wxGraphicsContext(renderer) +{ + int width, height; + dc.GetSize( &width, &height ); + m_width = width; + m_height = height; + + m_enableOffset = true; + +#ifdef __WXMSW__ + m_mswSurface = cairo_win32_surface_create((HDC)dc.GetHDC()); + Init( cairo_create(m_mswSurface) ); +#endif + +#ifdef __WXGTK20__ + wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl(); + Init( gdk_cairo_create( impldc->GetGDKWindow() ) ); + +#if 0 + wxGraphicsMatrix matrix = CreateMatrix(); + + wxPoint org = dc.GetDeviceOrigin(); + matrix.Translate( org.x, org.y ); + + org = dc.GetLogicalOrigin(); + matrix.Translate( -org.x, -org.y ); + + double sx,sy; + dc.GetUserScale( &sx, &sy ); + matrix.Scale( sx, sy ); + + ConcatTransform( matrix ); +#endif +#endif + +#ifdef __WXMAC__ + CGContextRef cgcontext = (CGContextRef)dc.GetWindow()->MacGetCGContextRef(); + cairo_surface_t* surface = cairo_quartz_surface_create_for_cg_context(cgcontext, width, height); + Init( cairo_create( surface ) ); + cairo_surface_destroy( surface ); +#endif +} + +wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& dc ) +: wxGraphicsContext(renderer) +{ + int width, height; + dc.GetSize( &width, &height ); + m_width = width; + m_height = height; + + m_enableOffset = true; + +#ifdef __WXMSW__ + m_mswSurface = cairo_win32_surface_create((HDC)dc.GetHDC()); + Init( cairo_create(m_mswSurface) ); +#endif + +#ifdef __WXGTK20__ + wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl(); + Init( gdk_cairo_create( impldc->GetGDKWindow() ) ); + +#if 0 + wxGraphicsMatrix matrix = CreateMatrix(); + + wxPoint org = dc.GetDeviceOrigin(); + matrix.Translate( org.x, org.y ); + + org = dc.GetLogicalOrigin(); + matrix.Translate( -org.x, -org.y ); + + double sx,sy; + dc.GetUserScale( &sx, &sy ); + matrix.Scale( sx, sy ); + + ConcatTransform( matrix ); +#endif +#endif + +#ifdef __WXMAC__ + CGContextRef cgcontext = (CGContextRef)dc.GetWindow()->MacGetCGContextRef(); + cairo_surface_t* surface = cairo_quartz_surface_create_for_cg_context(cgcontext, width, height); + Init( cairo_create( surface ) ); + cairo_surface_destroy( surface ); +#endif +} + +#ifdef __WXGTK20__ +wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawable ) +: wxGraphicsContext(renderer) +{ + Init( gdk_cairo_create( drawable ) ); + + int width, height; + gdk_drawable_get_size( drawable, &width, &height ); + m_width = width; + m_height = height; +} +#endif + +#ifdef __WXMSW__ +wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, HDC handle ) +: wxGraphicsContext(renderer) +{ + m_mswSurface = cairo_win32_surface_create(handle); + Init( cairo_create(m_mswSurface) ); + m_width = + m_height = 0; +} +#endif + + +wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, cairo_t *context ) +: wxGraphicsContext(renderer) +{ + Init( context ); + m_width = + m_height = 0; +} + +wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window) +: wxGraphicsContext(renderer) +{ + m_enableOffset = true; +#ifdef __WXGTK__ + // something along these lines (copied from dcclient) + + // Some controls don't have m_wxwindow - like wxStaticBox, but the user + // code should still be able to create wxClientDCs for them, so we will + // use the parent window here then. + if (window->m_wxwindow == NULL) + { + window = window->GetParent(); + } + + wxASSERT_MSG( window->m_wxwindow, wxT("wxCairoContext needs a widget") ); + + Init(gdk_cairo_create(window->GTKGetDrawingWindow())); + + wxSize sz = window->GetSize(); + m_width = sz.x; + m_height = sz.y; +#endif + +#ifdef __WXMSW__ + m_mswSurface = cairo_win32_surface_create((HDC)window->GetHandle()); + Init(cairo_create(m_mswSurface)); +#endif + +} + +wxCairoContext::wxCairoContext(wxGraphicsRenderer* renderer) : + wxGraphicsContext(renderer) +{ + m_context = NULL; +} + +wxCairoContext::~wxCairoContext() +{ + if ( m_context ) { PopState(); PopState(); cairo_destroy(m_context); } +#ifdef __WXMSW__ + if ( m_mswSurface ) + cairo_surface_destroy(m_mswSurface); +#endif } void wxCairoContext::Init(cairo_t *context) @@ -1286,99 +1922,34 @@ void wxCairoContext::PopState() void wxCairoContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) { - wxCHECK_RET( bmp.IsOk(), wxT("Invalid bitmap in wxCairoContext::DrawBitmap")); - - cairo_surface_t* surface; - int bw = bmp.GetWidth(); - int bh = bmp.GetHeight(); - wxBitmap bmpSource = bmp; // we need a non-const instance - unsigned char* buffer = new unsigned char[bw*bh*4]; - wxUint32* data = (wxUint32*)buffer; - - // Create a surface object and copy the bitmap pixel data to it. if the - // image has alpha (or a mask represented as alpha) then we'll use a - // different format and iterator than if it doesn't... - if (bmpSource.HasAlpha() || bmpSource.GetMask()) - { - surface = cairo_image_surface_create_for_data( - buffer, CAIRO_FORMAT_ARGB32, bw, bh, bw*4); - wxAlphaPixelData pixData(bmpSource, wxPoint(0,0), wxSize(bw, bh)); - wxCHECK_RET( pixData, wxT("Failed to gain raw access to bitmap data.")); - - wxAlphaPixelData::Iterator p(pixData); - for (int y=0; yCreateBitmap(bmp); + DrawBitmap(bitmap, x, y, w, h); +} +void wxCairoContext::DrawBitmap(const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) +{ PushState(); // In case we're scaling the image by using a width and height different // than the bitmap's size create a pattern transformation on the surface and // draw the transformed pattern. - cairo_pattern_t* pattern = cairo_pattern_create_for_surface(surface); - wxDouble scaleX = w / bw; - wxDouble scaleY = h / bh; - cairo_scale(m_context, scaleX, scaleY); + wxCairoBitmapData* data = static_cast(bmp.GetRefData()); + cairo_pattern_t* pattern = data->GetCairoPattern(); + wxSize size = data->GetSize(); + + wxDouble scaleX = w / size.GetWidth(); + wxDouble scaleY = h / size.GetHeight(); // prepare to draw the image cairo_translate(m_context, x, y); + cairo_scale(m_context, scaleX, scaleY); cairo_set_source(m_context, pattern); // use the original size here since the context is scaled already... - cairo_rectangle(m_context, 0, 0, bw, bh); + cairo_rectangle(m_context, 0, 0, size.GetWidth(), size.GetHeight()); // fill the rectangle using the pattern cairo_fill(m_context); - // clean up - cairo_pattern_destroy(pattern); - cairo_surface_destroy(surface); - delete [] buffer; PopState(); } @@ -1403,19 +1974,35 @@ void wxCairoContext::DoDrawText(const wxString& str, wxDouble x, wxDouble y) if ( !data ) return; - ((wxCairoFontData*)m_font.GetRefData())->Apply(this); - + if ( ((wxCairoFontData*)m_font.GetRefData())->Apply(this) ) + { #ifdef __WXGTK__ - size_t datalen = strlen(data); + size_t datalen = strlen(data); - PangoLayout *layout = pango_cairo_create_layout (m_context); - pango_layout_set_font_description( layout, ((wxCairoFontData*)m_font.GetRefData())->GetFont()); - pango_layout_set_text(layout, data, datalen); - cairo_move_to(m_context, x, y); - pango_cairo_show_layout (m_context, layout); + PangoLayout *layout = pango_cairo_create_layout (m_context); + wxCairoFontData* font_data = (wxCairoFontData*) m_font.GetRefData(); + pango_layout_set_font_description( layout, font_data->GetFont()); + pango_layout_set_text(layout, data, datalen); + + if (font_data->GetUnderlined()) + { + PangoAttrList *attrs = pango_attr_list_new(); + PangoAttribute *attr = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE); + pango_attr_list_insert(attrs, attr); + pango_layout_set_attributes(layout, attrs); + pango_attr_list_unref(attrs); + } + + cairo_move_to(m_context, x, y); + pango_cairo_show_layout (m_context, layout); + + g_object_unref (layout); + + // Don't use Cairo text API, we already did everything. + return; +#endif + } - g_object_unref (layout); -#else // Cairo's x,y for drawing text is at the baseline, so we need to adjust // the position we move to by the ascent. cairo_font_extents_t fe; @@ -1423,7 +2010,6 @@ void wxCairoContext::DoDrawText(const wxString& str, wxDouble x, wxDouble y) cairo_move_to(m_context, x, y+fe.ascent); cairo_show_text(m_context, data); -#endif } void wxCairoContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height, @@ -1443,32 +2029,35 @@ void wxCairoContext::GetTextExtent( const wxString &str, wxDouble *width, wxDoub if ( str.empty()) return; + if ( ((wxCairoFontData*)m_font.GetRefData())->Apply((wxCairoContext*)this) ) + { #ifdef __WXGTK__ - int w, h; + int w, h; - PangoLayout *layout = pango_cairo_create_layout (m_context); - pango_layout_set_font_description( layout, ((wxCairoFontData*)m_font.GetRefData())->GetFont()); - const wxCharBuffer data = str.utf8_str(); - if ( !data ) - { + PangoLayout *layout = pango_cairo_create_layout (m_context); + pango_layout_set_font_description( layout, ((wxCairoFontData*)m_font.GetRefData())->GetFont()); + const wxCharBuffer data = str.utf8_str(); + if ( !data ) + { + return; + } + pango_layout_set_text( layout, data, strlen(data) ); + pango_layout_get_pixel_size (layout, &w, &h); + if ( width ) + *width = w; + if ( height ) + *height = h; + if (descent) + { + PangoLayoutIter *iter = pango_layout_get_iter(layout); + int baseline = pango_layout_iter_get_baseline(iter); + pango_layout_iter_free(iter); + *descent = h - PANGO_PIXELS(baseline); + } + g_object_unref (layout); return; +#endif } - pango_layout_set_text( layout, data, strlen(data) ); - pango_layout_get_pixel_size (layout, &w, &h); - if ( width ) - *width = w; - if ( height ) - *height = h; - if (descent) - { - PangoLayoutIter *iter = pango_layout_get_iter(layout); - int baseline = pango_layout_iter_get_baseline(iter); - pango_layout_iter_free(iter); - *descent = h - PANGO_PIXELS(baseline); - } - g_object_unref (layout); -#else - ((wxCairoFontData*)m_font.GetRefData())->Apply((wxCairoContext*)this); if (width) { @@ -1501,7 +2090,6 @@ void wxCairoContext::GetTextExtent( const wxString &str, wxDouble *width, wxDoub if ( externalLeading ) *externalLeading = wxMax(0, fe.height - (fe.ascent + fe.descent)); } -#endif } void wxCairoContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const @@ -1522,53 +2110,103 @@ void * wxCairoContext::GetNativeContext() return m_context; } -// Cairo doesn't support bitwise logical function (a.k.a. ROP, raster output -// mode). Cairo supports Porter-Duff compositing operators, but they are quite -// different, although in some cases have similar names. -bool wxCairoContext::SetLogicalFunction( wxRasterOperationMode function ) +bool wxCairoContext::SetAntialiasMode(wxAntialiasMode antialias) { - if (m_logicalFunction == function) + if (m_antialias == antialias) return true; - cairo_operator_t op; + m_antialias = antialias; + + cairo_antialias_t antialiasMode; + switch (antialias) + { + case wxANTIALIAS_DEFAULT: + antialiasMode = CAIRO_ANTIALIAS_DEFAULT; + break; + case wxANTIALIAS_NONE: + antialiasMode = CAIRO_ANTIALIAS_NONE; + break; + default: + return false; + } + cairo_set_antialias(m_context, antialiasMode); + return true; +} + +bool wxCairoContext::SetInterpolationQuality(wxInterpolationQuality WXUNUSED(interpolation)) +{ + // placeholder + return false; +} + +bool wxCairoContext::SetCompositionMode(wxCompositionMode op) +{ + if ( m_composition == op ) + return true; - switch ( function ) + m_composition = op; + cairo_operator_t cop; + switch (op) { - case wxCOPY: // (default) src - op = CAIRO_OPERATOR_OVER; // (also default) + case wxCOMPOSITION_CLEAR: + cop = CAIRO_OPERATOR_CLEAR; break; - case wxOR: // src OR dst - op = CAIRO_OPERATOR_ADD; + case wxCOMPOSITION_SOURCE: + cop = CAIRO_OPERATOR_SOURCE; break; - case wxNO_OP: // dst - op = CAIRO_OPERATOR_DEST; // ignore the source + case wxCOMPOSITION_OVER: + cop = CAIRO_OPERATOR_OVER; break; - case wxCLEAR: // 0 - op = CAIRO_OPERATOR_CLEAR;// clear dst + case wxCOMPOSITION_IN: + cop = CAIRO_OPERATOR_IN; + break; + case wxCOMPOSITION_OUT: + cop = CAIRO_OPERATOR_OUT; + break; + case wxCOMPOSITION_ATOP: + cop = CAIRO_OPERATOR_ATOP; + break; + case wxCOMPOSITION_DEST: + cop = CAIRO_OPERATOR_DEST; + break; + case wxCOMPOSITION_DEST_OVER: + cop = CAIRO_OPERATOR_DEST_OVER; + break; + case wxCOMPOSITION_DEST_IN: + cop = CAIRO_OPERATOR_DEST_IN; + break; + case wxCOMPOSITION_DEST_OUT: + cop = CAIRO_OPERATOR_DEST_OUT; + break; + case wxCOMPOSITION_DEST_ATOP: + cop = CAIRO_OPERATOR_DEST_ATOP; + break; + case wxCOMPOSITION_XOR: + cop = CAIRO_OPERATOR_XOR; + break; + case wxCOMPOSITION_ADD: + cop = CAIRO_OPERATOR_ADD; break; - - case wxAND: // src AND dst - case wxAND_INVERT: // (NOT src) AND dst - case wxAND_REVERSE:// src AND (NOT dst) - case wxEQUIV: // (NOT src) XOR dst - case wxINVERT: // NOT dst - case wxNAND: // (NOT src) OR (NOT dst) - case wxNOR: // (NOT src) AND (NOT dst) - case wxOR_INVERT: // (NOT src) OR dst - case wxOR_REVERSE: // src OR (NOT dst) - case wxSET: // 1 - case wxSRC_INVERT: // NOT src - //wxXOR does _not_ correspond to CAIRO_OPERATOR_XOR - case wxXOR: // src XOR dst default: return false; } - - m_logicalFunction = function; - cairo_set_operator(m_context, op); + cairo_set_operator(m_context, cop); return true; } +void wxCairoContext::BeginLayer(wxDouble opacity) +{ + m_layerOpacities.push_back(opacity); + cairo_push_group(m_context); +} + +void wxCairoContext::EndLayer() +{ + float opacity = m_layerOpacities.back(); + m_layerOpacities.pop_back(); + cairo_pop_group_to_source(m_context); + cairo_paint_with_alpha(m_context,opacity); +} //----------------------------------------------------------------------------- // wxCairoRenderer declaration @@ -1590,11 +2228,18 @@ public : virtual wxGraphicsContext * CreateContextFromNativeContext( void * context ); virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window ); +#if wxUSE_IMAGE + virtual wxGraphicsContext * CreateContextFromImage(wxImage& image); +#endif // wxUSE_IMAGE virtual wxGraphicsContext * CreateContext( wxWindow* window ); virtual wxGraphicsContext * CreateMeasuringContext(); - +#ifdef __WXMSW__ +#if wxUSE_ENH_METAFILE + virtual wxGraphicsContext * CreateContext( const wxEnhMetaFileDC& dc); +#endif +#endif // Path virtual wxGraphicsPath CreatePath(); @@ -1609,33 +2254,44 @@ public : virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ; - // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2 - virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, - const wxColour&c1, const wxColour&c2) ; + virtual wxGraphicsBrush + CreateLinearGradientBrush(wxDouble x1, wxDouble y1, + wxDouble x2, wxDouble y2, + const wxGraphicsGradientStops& stops); - // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc) - // with radius r and color cColor - virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius, - const wxColour &oColor, const wxColour &cColor) ; + virtual wxGraphicsBrush + CreateRadialGradientBrush(wxDouble xo, wxDouble yo, + wxDouble xc, wxDouble yc, + wxDouble radius, + const wxGraphicsGradientStops& stops); // sets the font virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ; + virtual wxGraphicsFont CreateFont(double sizeInPixels, + const wxString& facename, + int flags = wxFONTFLAG_DEFAULT, + const wxColour& col = *wxBLACK); // create a native bitmap representation -#if 0 - virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) - { - return wxGraphicsBitmap; - } + virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ); +#if wxUSE_IMAGE + virtual wxGraphicsBitmap CreateBitmapFromImage(const wxImage& image); + virtual wxImage CreateImageFromBitmap(const wxGraphicsBitmap& bmp); +#endif // wxUSE_IMAGE + + // create a graphics bitmap from a native bitmap + virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap ); // create a subimage from a native image representation - virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) - { - return wxGraphicsBitmap; - } -#endif + virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h ); +protected : + bool EnsureIsLoaded(); + void Load(); + void Unload(); + friend class wxCairoModule; private : + int m_loaded; DECLARE_DYNAMIC_CLASS_NO_COPY(wxCairoRenderer) } ; @@ -1650,25 +2306,46 @@ static wxCairoRenderer gs_cairoGraphicsRenderer; extern wxGraphicsRenderer* gCairoRenderer; wxGraphicsRenderer* gCairoRenderer = &gs_cairoGraphicsRenderer; -#ifdef __WXGTK__ -wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer() +bool wxCairoRenderer::EnsureIsLoaded() { - return &gs_cairoGraphicsRenderer; -} +#ifndef __WXGTK__ + Load(); + return wxCairoInit(); +#else + return true; #endif +} + +void wxCairoRenderer::Load() +{ + wxCairoInit(); +} + +void wxCairoRenderer::Unload() +{ + wxCairoCleanUp(); +} + +// call EnsureIsLoaded() and return returnOnFail value if it fails +#define ENSURE_LOADED_OR_RETURN(returnOnFail) \ + if ( !EnsureIsLoaded() ) \ + return (returnOnFail) wxGraphicsContext * wxCairoRenderer::CreateContext( const wxWindowDC& dc) { + ENSURE_LOADED_OR_RETURN(NULL); return new wxCairoContext(this,dc); } wxGraphicsContext * wxCairoRenderer::CreateContext( const wxMemoryDC& dc) { + ENSURE_LOADED_OR_RETURN(NULL); return new wxCairoContext(this,dc); } wxGraphicsContext * wxCairoRenderer::CreateContext( const wxPrinterDC& dc) { + ENSURE_LOADED_OR_RETURN(NULL); #ifdef __WXGTK20__ const wxDCImpl *impl = dc.GetImpl(); cairo_t* context = (cairo_t*) impl->GetCairoContext(); @@ -1676,32 +2353,61 @@ wxGraphicsContext * wxCairoRenderer::CreateContext( const wxPrinterDC& dc) return new wxCairoContext(this,dc); else #endif - return NULL; + return new wxCairoContext(this,dc); +} + +#ifdef __WXMSW__ +#if wxUSE_ENH_METAFILE +wxGraphicsContext * wxCairoRenderer::CreateContext( const wxEnhMetaFileDC& WXUNUSED(dc) ) +{ + ENSURE_LOADED_OR_RETURN(NULL); + return NULL; } +#endif +#endif wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeContext( void * context ) { + ENSURE_LOADED_OR_RETURN(NULL); +#ifdef __WXMSW__ + return new wxCairoContext(this,(HDC)context); +#else return new wxCairoContext(this,(cairo_t*)context); +#endif } wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeWindow( void * window ) { + ENSURE_LOADED_OR_RETURN(NULL); #ifdef __WXGTK__ return new wxCairoContext(this,(GdkDrawable*)window); #else + wxUnusedVar(window); return NULL; #endif } +#if wxUSE_IMAGE +wxGraphicsContext * wxCairoRenderer::CreateContextFromImage(wxImage& image) +{ + return new wxCairoImageContext(this, image); +} +#endif // wxUSE_IMAGE + wxGraphicsContext * wxCairoRenderer::CreateMeasuringContext() { + ENSURE_LOADED_OR_RETURN(NULL); +#ifdef __WXGTK__ + return CreateContextFromNativeWindow(gdk_get_default_root_window()); +#endif return NULL; // TODO } wxGraphicsContext * wxCairoRenderer::CreateContext( wxWindow* window ) { + ENSURE_LOADED_OR_RETURN(NULL); return new wxCairoContext(this, window ); } @@ -1709,6 +2415,7 @@ wxGraphicsContext * wxCairoRenderer::CreateContext( wxWindow* window ) wxGraphicsPath wxCairoRenderer::CreatePath() { + ENSURE_LOADED_OR_RETURN(wxNullGraphicsPath); wxGraphicsPath path; path.SetRefData( new wxCairoPathData(this) ); return path; @@ -1721,6 +2428,7 @@ wxGraphicsMatrix wxCairoRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble wxDouble tx, wxDouble ty) { + ENSURE_LOADED_OR_RETURN(wxNullGraphicsMatrix); wxGraphicsMatrix m; wxCairoMatrixData* data = new wxCairoMatrixData( this ); data->Set( a,b,c,d,tx,ty ) ; @@ -1730,7 +2438,8 @@ wxGraphicsMatrix wxCairoRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble wxGraphicsPen wxCairoRenderer::CreatePen(const wxPen& pen) { - if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT ) + ENSURE_LOADED_OR_RETURN(wxNullGraphicsPen); + if ( !pen.IsOk() || pen.GetStyle() == wxPENSTYLE_TRANSPARENT ) return wxNullGraphicsPen; else { @@ -1742,7 +2451,8 @@ wxGraphicsPen wxCairoRenderer::CreatePen(const wxPen& pen) wxGraphicsBrush wxCairoRenderer::CreateBrush(const wxBrush& brush ) { - if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT ) + ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush); + if ( !brush.IsOk() || brush.GetStyle() == wxBRUSHSTYLE_TRANSPARENT ) return wxNullGraphicsBrush; else { @@ -1752,33 +2462,36 @@ wxGraphicsBrush wxCairoRenderer::CreateBrush(const wxBrush& brush ) } } -// sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2 -wxGraphicsBrush wxCairoRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, - const wxColour&c1, const wxColour&c2) +wxGraphicsBrush +wxCairoRenderer::CreateLinearGradientBrush(wxDouble x1, wxDouble y1, + wxDouble x2, wxDouble y2, + const wxGraphicsGradientStops& stops) { + ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush); wxGraphicsBrush p; wxCairoBrushData* d = new wxCairoBrushData( this ); - d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2); + d->CreateLinearGradientBrush(x1, y1, x2, y2, stops); p.SetRefData(d); return p; } -// sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc) -// with radius r and color cColor -wxGraphicsBrush wxCairoRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius, - const wxColour &oColor, const wxColour &cColor) +wxGraphicsBrush +wxCairoRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo, + wxDouble xc, wxDouble yc, wxDouble r, + const wxGraphicsGradientStops& stops) { + ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush); wxGraphicsBrush p; wxCairoBrushData* d = new wxCairoBrushData( this ); - d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor); + d->CreateRadialGradientBrush(xo, yo, xc, yc, r, stops); p.SetRefData(d); return p; } -// sets the font wxGraphicsFont wxCairoRenderer::CreateFont( const wxFont &font , const wxColour &col ) { - if ( font.Ok() ) + ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont); + if ( font.IsOk() ) { wxGraphicsFont p; p.SetRefData(new wxCairoFontData( this , font, col )); @@ -1788,4 +2501,107 @@ wxGraphicsFont wxCairoRenderer::CreateFont( const wxFont &font , const wxColour return wxNullGraphicsFont; } -#endif // wxUSE_GRAPHICS_CONTEXT +wxGraphicsFont +wxCairoRenderer::CreateFont(double sizeInPixels, + const wxString& facename, + int flags, + const wxColour& col) +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont); + + wxGraphicsFont font; + font.SetRefData(new wxCairoFontData(this, sizeInPixels, facename, flags, col)); + return font; +} + +wxGraphicsBitmap wxCairoRenderer::CreateBitmap( const wxBitmap& bmp ) +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap); + if ( bmp.IsOk() ) + { + wxGraphicsBitmap p; + p.SetRefData(new wxCairoBitmapData( this , bmp )); + return p; + } + else + return wxNullGraphicsBitmap; +} + +#if wxUSE_IMAGE + +wxGraphicsBitmap wxCairoRenderer::CreateBitmapFromImage(const wxImage& image) +{ + wxGraphicsBitmap bmp; + + ENSURE_LOADED_OR_RETURN(bmp); + + if ( image.IsOk() ) + { + bmp.SetRefData(new wxCairoBitmapData(this, image)); + } + + return bmp; +} + +wxImage wxCairoRenderer::CreateImageFromBitmap(const wxGraphicsBitmap& bmp) +{ + ENSURE_LOADED_OR_RETURN(wxNullImage); + + const wxCairoBitmapData* const + data = static_cast(bmp.GetGraphicsData()); + + return data ? data->ConvertToImage() : wxNullImage; +} + +#endif // wxUSE_IMAGE + + +wxGraphicsBitmap wxCairoRenderer::CreateBitmapFromNativeBitmap( void* bitmap ) +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap); + if ( bitmap != NULL ) + { + wxGraphicsBitmap p; + p.SetRefData(new wxCairoBitmapData( this , (cairo_surface_t*) bitmap )); + return p; + } + else + return wxNullGraphicsBitmap; +} + +wxGraphicsBitmap +wxCairoRenderer::CreateSubBitmap(const wxGraphicsBitmap& WXUNUSED(bitmap), + wxDouble WXUNUSED(x), + wxDouble WXUNUSED(y), + wxDouble WXUNUSED(w), + wxDouble WXUNUSED(h)) +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap); + wxFAIL_MSG("wxCairoRenderer::CreateSubBitmap is not implemented."); + return wxNullGraphicsBitmap; +} + +wxGraphicsRenderer* wxGraphicsRenderer::GetCairoRenderer() +{ + return &gs_cairoGraphicsRenderer; +} + +#else // !wxUSE_CAIRO + +wxGraphicsRenderer* wxGraphicsRenderer::GetCairoRenderer() +{ + return NULL; +} + +#endif // wxUSE_CAIRO/!wxUSE_CAIRO + +// MSW and OS X have their own native default renderers, but the other ports +// use Cairo by default +#if !(defined(__WXMSW__) || defined(__WXOSX__)) +wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer() +{ + return GetCairoRenderer(); +} +#endif // !(__WXMSW__ || __WXOSX__) + +#endif // wxUSE_GRAPHICS_CONTEXT