X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8775253065fc626a185760f187ab4dbf32e90162..beee38cb41aa2ce4fbe9052bf4f70e1be184b553:/src/generic/graphicc.cpp diff --git a/src/generic/graphicc.cpp b/src/generic/graphicc.cpp old mode 100755 new mode 100644 index 8e6be335cb..c8f2506cc4 --- a/src/generic/graphicc.cpp +++ b/src/generic/graphicc.cpp @@ -11,66 +11,38 @@ #include "wx/wxprec.h" -#include "wx/dc.h" - #ifdef __BORLANDC__ -#pragma hdrstop -#endif - -#ifndef WX_PRECOMP -#include "wx/image.h" -#include "wx/window.h" -#include "wx/dc.h" -#include "wx/utils.h" -#include "wx/dialog.h" -#include "wx/app.h" -#include "wx/bitmap.h" -#include "wx/dcmemory.h" -#include "wx/log.h" -#include "wx/icon.h" -#include "wx/dcprint.h" -#include "wx/module.h" + #pragma hdrstop #endif -#ifdef __WXGTK__ -#include "wx/gtk/win_gtk.h" -#endif - -#include "wx/graphics.h" - #if wxUSE_GRAPHICS_CONTEXT -#include +#include "wx/graphics.h" -using namespace std; +#if wxUSE_CAIRO -//----------------------------------------------------------------------------- -// constants -//----------------------------------------------------------------------------- +// 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 -const double RAD2DEG = 180.0 / M_PI; +#include "wx/cairo.h" -//----------------------------------------------------------------------------- -// Local functions -//----------------------------------------------------------------------------- +#ifndef WX_PRECOMP + #include "wx/bitmap.h" + #include "wx/icon.h" + #include "wx/dcclient.h" + #include "wx/dcmemory.h" + #include "wx/dcprint.h" + #ifdef __WXGTK__ + #include "wx/window.h" + #endif +#endif -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; -} +#include "wx/private/graphics.h" +#include "wx/rawbmp.h" +#include "wx/vector.h" -static inline double DegToRad(double deg) -{ - return (deg * M_PI) / 180.0; -} -static inline double RadToDeg(double deg) -{ - return (deg * 180.0) / M_PI; -} +using namespace std; //----------------------------------------------------------------------------- // device context implementation @@ -99,18 +71,33 @@ static inline double RadToDeg(double deg) #endif #include +#ifdef __WXMSW__ +#include +#endif + #ifdef __WXGTK__ #include +#include "wx/fontutil.h" +#include "wx/gtk/dc.h" +#endif + +#ifdef __WXMSW__ +#include +#endif + +#ifdef __WXMAC__ +#include "wx/osx/private.h" +#include +#include #endif -class WXDLLIMPEXP_CORE wxCairoPath : public wxGraphicsPath +class WXDLLIMPEXP_CORE wxCairoPathData : public wxGraphicsPathData { public : - wxCairoPath(); - wxCairoPath(wxGraphicsRenderer* renderer, cairo_t* pathcontext = NULL); - ~wxCairoPath(); + wxCairoPathData(wxGraphicsRenderer* renderer, cairo_t* path = NULL); + ~wxCairoPathData(); - virtual wxGraphicsPath *Clone() const; + virtual wxGraphicsObjectRefData *Clone() const; // // These are the path primitives from which everything else can be constructed @@ -130,10 +117,10 @@ public : virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise ) ; // gets the last point of the current path, (0,0) if not yet set - virtual void GetCurrentPoint( wxDouble& x, wxDouble&y) ; + virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const; // adds another path - virtual void AddPath( const wxGraphicsPath* path ); + virtual void AddPath( const wxGraphicsPathData* path ); // closes the current sub-path virtual void CloseSubpath(); @@ -145,7 +132,7 @@ public : /* - // appends a rectangle as a new closed subpath + // appends a rectangle as a new closed subpath virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) ; // appends an ellipsis as a new closed subpath fitting the passed rectangle virtual void AddEllipsis( wxDouble x, wxDouble y, wxDouble w , wxDouble h ) ; @@ -158,49 +145,47 @@ public : virtual void * GetNativePath() const ; // give the native path returned by GetNativePath() back (there might be some deallocations necessary) - virtual void UnGetNativePath(void *p) ; + virtual void UnGetNativePath(void *p) const; // transforms each point of this path by the matrix - virtual void Transform( wxGraphicsMatrix* matrix ) ; + virtual void Transform( const wxGraphicsMatrixData* matrix ) ; // gets the bounding box enclosing all points (possibly including control points) - virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) ; + virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const; - virtual bool Contains( wxDouble x, wxDouble y, int fillStyle = wxWINDING_RULE) ; + virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxWINDING_RULE) const; private : cairo_t* m_pathContext; - DECLARE_DYNAMIC_CLASS_NO_COPY(wxCairoPath) }; -class WXDLLIMPEXP_CORE wxCairoMatrix : public wxGraphicsMatrix +class WXDLLIMPEXP_CORE wxCairoMatrixData : public wxGraphicsMatrixData { public : - wxCairoMatrix() ; + wxCairoMatrixData(wxGraphicsRenderer* renderer, const cairo_matrix_t* matrix = NULL ) ; + virtual ~wxCairoMatrixData() ; - wxCairoMatrix(wxGraphicsRenderer* renderer, const cairo_matrix_t* matrix = NULL ) ; - virtual ~wxCairoMatrix() ; - - virtual wxGraphicsMatrix *Clone() const ; + virtual wxGraphicsObjectRefData *Clone() const ; // concatenates the matrix - virtual void Concat( const wxGraphicsMatrix *t ); - - // copies the passed in matrix - virtual void Copy( const wxGraphicsMatrix *t ); + virtual void Concat( const wxGraphicsMatrixData *t ); // sets the matrix to the respective values - virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0, + virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0, wxDouble tx=0.0, wxDouble ty=0.0); + // gets the component valuess of the matrix + virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL, wxDouble* c=NULL, + wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const; + // makes this the inverse matrix virtual void Invert(); // returns true if the elements of the transformation matrix are equal ? - virtual bool IsEqual( const wxGraphicsMatrix* t) const ; + virtual bool IsEqual( const wxGraphicsMatrixData* t) const ; // return true if this is the identity matrix - virtual bool IsIdentity(); + virtual bool IsIdentity() const; // // transformation @@ -213,24 +198,22 @@ public : virtual void Scale( wxDouble xScale , wxDouble yScale ); // add the rotation to this matrix (radians) - virtual void Rotate( wxDouble angle ); + virtual void Rotate( wxDouble angle ); // // apply the transforms // // applies that matrix to the point - virtual void TransformPoint( wxDouble *x, wxDouble *y ); + virtual void TransformPoint( wxDouble *x, wxDouble *y ) const; // applies the matrix except for translations - virtual void TransformDistance( wxDouble *dx, wxDouble *dy ); + virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const; // returns the native representation virtual void * GetNativeMatrix() const; private: cairo_matrix_t m_matrix ; - - DECLARE_DYNAMIC_CLASS_NO_COPY(wxCairoMatrix) } ; class WXDLLIMPEXP_CORE wxCairoPenData : public wxGraphicsObjectRefData @@ -246,12 +229,12 @@ public: private : double m_width; - + double m_red; double m_green; double m_blue; double m_alpha; - + cairo_line_cap_t m_cap; cairo_line_join_t m_join; @@ -260,6 +243,8 @@ private : double *m_userLengths; wxPen m_pen; + + wxDECLARE_NO_COPY_CLASS(wxCairoPenData); }; class WXDLLIMPEXP_CORE wxCairoBrushData : public wxGraphicsObjectRefData @@ -270,14 +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; @@ -291,35 +282,126 @@ 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 : - wxCharBuffer m_fontName; + void InitColour(const wxColour& col); + void InitFontComponents(const wxString& facename, + cairo_font_slant_t slant, + cairo_font_weight_t weight); + double m_size; - cairo_font_slant_t m_slant; - cairo_font_weight_t m_weight; double m_red; double m_green; double m_blue; double m_alpha; +#ifdef __WXMAC__ + cairo_font_face_t *m_font; +#elif defined(__WXGTK__) + PangoFontDescription* m_font; + 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; }; -class WXDLLIMPEXP_CORE wxCairoContext : public wxGraphicsContext +class wxCairoBitmapData : public wxGraphicsObjectRefData { - DECLARE_NO_COPY_CLASS(wxCairoContext) +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 +{ public: wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& dc ); + wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& dc ); + 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() ) + { + penwidth = (int)((wxCairoPenData*)m_pen.GetRefData())->GetWidth(); + if ( penwidth == 0 ) + penwidth = 1; + } + return ( penwidth % 2 ) == 1; + } + 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 ); @@ -329,35 +411,83 @@ public: virtual void * GetNativeContext(); - virtual void StrokePath( const wxGraphicsPath *p ); - virtual void FillPath( const wxGraphicsPath *p , int fillStyle = wxWINDING_RULE ); + 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 ); virtual void Translate( wxDouble dx , wxDouble dy ); virtual void Scale( wxDouble xScale , wxDouble yScale ); virtual void Rotate( wxDouble angle ); // concatenates this transform with the current transform of this context - virtual void ConcatTransform( const wxGraphicsMatrix* matrix ); + virtual void ConcatTransform( const wxGraphicsMatrix& matrix ); // sets the transform of this context - virtual void SetTransform( const wxGraphicsMatrix* matrix ); + virtual void SetTransform( const wxGraphicsMatrix& matrix ); // gets the matrix of this context - virtual void GetTransform( wxGraphicsMatrix* matrix ); + 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(); virtual void PopState(); - virtual void DrawText( const wxString &str, wxDouble x, wxDouble y); virtual void GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height, wxDouble *descent, wxDouble *externalLeading ) const; virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const; +protected: + virtual void DoDrawText( const wxString &str, wxDouble x, wxDouble y ); + + void Init(cairo_t *context); + private: cairo_t* m_context; + + 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 @@ -378,14 +508,15 @@ void wxCairoPenData::Init() wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) : wxGraphicsObjectRefData(renderer) -{ +{ Init(); - m_width = pen.GetWidth(); + m_pen = pen; + m_width = m_pen.GetWidth(); if (m_width <= 0.0) m_width = 0.1; m_red = m_pen.GetColour().Red()/255.0; - m_green = m_pen.GetColour().Green()/255.0; + m_green = m_pen.GetColour().Green()/255.0; m_blue = m_pen.GetColour().Blue()/255.0; m_alpha = m_pen.GetColour().Alpha()/255.0; @@ -447,32 +578,32 @@ wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) switch ( m_pen.GetStyle() ) { - case wxSOLID : + case wxPENSTYLE_SOLID : break; - case wxDOT : + case wxPENSTYLE_DOT : m_count = WXSIZEOF(dotted); m_userLengths = new double[ m_count ] ; memcpy( m_userLengths, dotted, sizeof(dotted) ); m_lengths = m_userLengths; break; - case wxLONG_DASH : - m_lengths = dotted ; + case wxPENSTYLE_LONG_DASH : + m_lengths = dashed ; m_count = WXSIZEOF(dashed); break; - case wxSHORT_DASH : - m_lengths = dotted ; + case wxPENSTYLE_SHORT_DASH : + m_lengths = short_dashed ; m_count = WXSIZEOF(short_dashed); break; - case wxDOT_DASH : - m_lengths = dotted ; + case wxPENSTYLE_DOT_DASH : + m_lengths = dotted_dashed ; m_count = WXSIZEOF(dotted_dashed); break; - case wxUSER_DASH : + case wxPENSTYLE_USER_DASH : { wxDash *wxdashes ; m_count = m_pen.GetDashes( &wxdashes ) ; @@ -492,11 +623,11 @@ wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) m_lengths = m_userLengths ; } break; - case wxSTIPPLE : + case wxPENSTYLE_STIPPLE : { /* wxBitmap* bmp = pen.GetStipple(); - if ( bmp && bmp->Ok() ) + if ( bmp && bmp->IsOk() ) { wxDELETE( m_penImage ); wxDELETE( m_penBrush ); @@ -508,29 +639,30 @@ wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) } break; default : - if ( m_pen.GetStyle() >= wxFIRST_HATCH && m_pen.GetStyle() <= wxLAST_HATCH ) + if ( m_pen.GetStyle() >= wxPENSTYLE_FIRST_HATCH + && m_pen.GetStyle() <= wxPENSTYLE_LAST_HATCH ) { /* wxDELETE( m_penBrush ); HatchStyle style = HatchStyleHorizontal; switch( pen.GetStyle() ) { - case wxBDIAGONAL_HATCH : + case wxPENSTYLE_BDIAGONAL_HATCH : style = HatchStyleBackwardDiagonal; break ; - case wxCROSSDIAG_HATCH : + case wxPENSTYLE_CROSSDIAG_HATCH : style = HatchStyleDiagonalCross; break ; - case wxFDIAGONAL_HATCH : + case wxPENSTYLE_FDIAGONAL_HATCH : style = HatchStyleForwardDiagonal; break ; - case wxCROSS_HATCH : + case wxPENSTYLE_CROSS_HATCH : style = HatchStyleCross; break ; - case wxHORIZONTAL_HATCH : + case wxPENSTYLE_HORIZONTAL_HATCH : style = HatchStyleHorizontal; break ; - case wxVERTICAL_HATCH : + case wxPENSTYLE_VERTICAL_HATCH : style = HatchStyleVertical; break ; @@ -558,20 +690,23 @@ void wxCairoPenData::Apply( wxGraphicsContext* context ) // wxCairoBrushData implementation //----------------------------------------------------------------------------- -wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer ) : wxGraphicsObjectRefData( renderer ) +wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer ) + : wxGraphicsObjectRefData( renderer ) { Init(); } wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush ) -: wxGraphicsObjectRefData(renderer) + : wxGraphicsObjectRefData(renderer) { + Init(); + m_red = brush.GetColour().Red()/255.0; - m_green = brush.GetColour().Green()/255.0; + m_green = brush.GetColour().Green()/255.0; m_blue = brush.GetColour().Blue()/255.0; m_alpha = brush.GetColour().Alpha()/255.0; /* - if ( brush.GetStyle() == wxSOLID) + if ( brush.GetStyle() == wxBRUSHSTYLE_SOLID) { m_brush = new SolidBrush( Color( brush.GetColour().Alpha() , brush.GetColour().Red() , brush.GetColour().Green() , brush.GetColour().Blue() ) ); @@ -581,22 +716,22 @@ wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer, const wxBrush HatchStyle style = HatchStyleHorizontal; switch( brush.GetStyle() ) { - case wxBDIAGONAL_HATCH : + case wxBRUSHSTYLE_BDIAGONAL_HATCH : style = HatchStyleBackwardDiagonal; break ; - case wxCROSSDIAG_HATCH : + case wxBRUSHSTYLE_CROSSDIAG_HATCH : style = HatchStyleDiagonalCross; break ; - case wxFDIAGONAL_HATCH : + case wxBRUSHSTYLE_FDIAGONAL_HATCH : style = HatchStyleForwardDiagonal; break ; - case wxCROSS_HATCH : + case wxBRUSHSTYLE_CROSS_HATCH : style = HatchStyleCross; break ; - case wxHORIZONTAL_HATCH : + case wxBRUSHSTYLE_HORIZONTAL_HATCH : style = HatchStyleHorizontal; break ; - case wxVERTICAL_HATCH : + case wxBRUSHSTYLE_VERTICAL_HATCH : style = HatchStyleVertical; break ; @@ -604,10 +739,10 @@ wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer, const wxBrush m_brush = new HatchBrush(style,Color( brush.GetColour().Alpha() , brush.GetColour().Red() , brush.GetColour().Green() , brush.GetColour().Blue() ), Color.Transparent ); } - else + 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()); @@ -636,26 +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() @@ -667,47 +826,127 @@ 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_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(); - 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; + +#ifdef __WXMAC__ + 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 + 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__ + if ( m_font ) + cairo_font_face_destroy( m_font ); +#elif defined(__WXGTK__) + 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); - cairo_select_font_face(ctext,m_fontName,m_slant,m_weight); - cairo_set_font_size(ctext,m_size); - // TODO UNDERLINE - // TODO FIX SIZE +#ifdef __WXGTK__ + if ( m_font ) + { + // Nothing to do, the caller uses Pango layout functions to do + // everything. + return true; + } +#elif defined(__WXMAC__) + 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; } //----------------------------------------------------------------------------- -// wxCairoPath implementation +// wxCairoPathData implementation //----------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxCairoPath,wxGraphicsPath) - -wxCairoPath::wxCairoPath() : wxGraphicsPath(NULL) -{ - wxLogDebug(wxT("Illegal Constructor called")); -} - -wxCairoPath::wxCairoPath( wxGraphicsRenderer* renderer, cairo_t* pathcontext) - : wxGraphicsPath(renderer) +wxCairoPathData::wxCairoPathData( wxGraphicsRenderer* renderer, cairo_t* pathcontext) + : wxGraphicsPathData(renderer) { if (pathcontext) { @@ -721,12 +960,12 @@ wxCairoPath::wxCairoPath( wxGraphicsRenderer* renderer, cairo_t* pathcontext) } } -wxCairoPath::~wxCairoPath() +wxCairoPathData::~wxCairoPathData() { cairo_destroy(m_pathContext); } -wxGraphicsPath *wxCairoPath::Clone() const +wxGraphicsObjectRefData *wxCairoPathData::Clone() const { cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,1,1); cairo_t* pathcontext = cairo_create(surface); @@ -735,16 +974,16 @@ wxGraphicsPath *wxCairoPath::Clone() const cairo_path_t* path = cairo_copy_path(m_pathContext); cairo_append_path(pathcontext, path); cairo_path_destroy(path); - return new wxCairoPath( GetRenderer() ,pathcontext); + return new wxCairoPathData( GetRenderer() ,pathcontext); } -void* wxCairoPath::GetNativePath() const +void* wxCairoPathData::GetNativePath() const { return cairo_copy_path(m_pathContext) ; } -void wxCairoPath::UnGetNativePath(void *p) +void wxCairoPathData::UnGetNativePath(void *p) const { cairo_path_destroy((cairo_path_t*)p); } @@ -753,43 +992,47 @@ void wxCairoPath::UnGetNativePath(void *p) // The Primitives // -void wxCairoPath::MoveToPoint( wxDouble x , wxDouble y ) +void wxCairoPathData::MoveToPoint( wxDouble x , wxDouble y ) { cairo_move_to(m_pathContext,x,y); } -void wxCairoPath::AddLineToPoint( wxDouble x , wxDouble y ) +void wxCairoPathData::AddLineToPoint( wxDouble x , wxDouble y ) { cairo_line_to(m_pathContext,x,y); } -void wxCairoPath::AddPath( const wxGraphicsPath* path ) +void wxCairoPathData::AddPath( const wxGraphicsPathData* path ) { - // TODO + cairo_path_t* p = (cairo_path_t*)path->GetNativePath(); + cairo_append_path(m_pathContext, p); + UnGetNativePath(p); } -void wxCairoPath::CloseSubpath() +void wxCairoPathData::CloseSubpath() { cairo_close_path(m_pathContext); } -void wxCairoPath::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y ) +void wxCairoPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y ) { cairo_curve_to(m_pathContext,cx1,cy1,cx2,cy2,x,y); } // gets the last point of the current path, (0,0) if not yet set -void wxCairoPath::GetCurrentPoint( wxDouble& x, wxDouble&y) +void wxCairoPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const { double dx,dy; cairo_get_current_point(m_pathContext,&dx,&dy); - x = dx; - y = dy; + if (x) + *x = dx; + if (y) + *y = dy; } -void wxCairoPath::AddArc( wxDouble x, wxDouble y, wxDouble r, double startAngle, double endAngle, bool clockwise ) +void wxCairoPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, double startAngle, double endAngle, bool clockwise ) { - // as clockwise means positive in our system (y pointing downwards) + // as clockwise means positive in our system (y pointing downwards) // TODO make this interpretation dependent of the // real device trans if ( clockwise||(endAngle-startAngle)>=2*M_PI) @@ -799,17 +1042,17 @@ void wxCairoPath::AddArc( wxDouble x, wxDouble y, wxDouble r, double startAngle, } // transforms each point of this path by the matrix -void wxCairoPath::Transform( wxGraphicsMatrix* matrix ) +void wxCairoPathData::Transform( const wxGraphicsMatrixData* matrix ) { // as we don't have a true path object, we have to apply the inverse // matrix to the context cairo_matrix_t m = *((cairo_matrix_t*) matrix->GetNativeMatrix()); cairo_matrix_invert( &m ); cairo_transform(m_pathContext,&m); -} +} // gets the bounding box enclosing all points (possibly including control points) -void wxCairoPath::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) +void wxCairoPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const { double x1,y1,x2,y2; @@ -824,7 +1067,7 @@ void wxCairoPath::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) *x = x1; *w = x2-x1; } - + if( y2 < y1 ) { *y = y2; @@ -837,79 +1080,79 @@ void wxCairoPath::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) } } -bool wxCairoPath::Contains( wxDouble x, wxDouble y, int fillStyle ) +bool wxCairoPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle ) const { - return cairo_in_stroke( m_pathContext, x, y) != NULL; + 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; } //----------------------------------------------------------------------------- -// wxCairoMatrix implementation +// wxCairoMatrixData implementation //----------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxCairoMatrix,wxGraphicsMatrix) - -wxCairoMatrix::wxCairoMatrix() : wxGraphicsMatrix(NULL) -{ - wxLogDebug(wxT("Illegal Constructor called")); -} - -wxCairoMatrix::wxCairoMatrix(wxGraphicsRenderer* renderer, const cairo_matrix_t* matrix ) - : wxGraphicsMatrix(renderer) +wxCairoMatrixData::wxCairoMatrixData(wxGraphicsRenderer* renderer, const cairo_matrix_t* matrix ) + : wxGraphicsMatrixData(renderer) { if ( matrix ) m_matrix = *matrix; } -wxCairoMatrix::~wxCairoMatrix() +wxCairoMatrixData::~wxCairoMatrixData() { // nothing to do } -wxGraphicsMatrix *wxCairoMatrix::Clone() const +wxGraphicsObjectRefData *wxCairoMatrixData::Clone() const { - return new wxCairoMatrix(GetRenderer(),&m_matrix); + return new wxCairoMatrixData(GetRenderer(),&m_matrix); } // concatenates the matrix -void wxCairoMatrix::Concat( const wxGraphicsMatrix *t ) +void wxCairoMatrixData::Concat( const wxGraphicsMatrixData *t ) { - cairo_matrix_multiply( &m_matrix, &m_matrix, (cairo_matrix_t*) t->GetNativeMatrix()); + cairo_matrix_multiply( &m_matrix, &m_matrix, (cairo_matrix_t*) t->GetNativeMatrix()); } -// copies the passed in matrix -void wxCairoMatrix::Copy( const wxGraphicsMatrix *t ) +// sets the matrix to the respective values +void wxCairoMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d, + wxDouble tx, wxDouble ty) { - m_matrix = *((cairo_matrix_t*) t->GetNativeMatrix()); + cairo_matrix_init( &m_matrix, a, b, c, d, tx, ty); } -// sets the matrix to the respective values -void wxCairoMatrix::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d, - wxDouble tx, wxDouble ty) +// gets the component valuess of the matrix +void wxCairoMatrixData::Get(wxDouble* a, wxDouble* b, wxDouble* c, + wxDouble* d, wxDouble* tx, wxDouble* ty) const { - cairo_matrix_init( &m_matrix, a, b, c, d, tx, ty); + if (a) *a = m_matrix.xx; + if (b) *b = m_matrix.yx; + if (c) *c = m_matrix.xy; + if (d) *d = m_matrix.yy; + if (tx) *tx= m_matrix.x0; + if (ty) *ty= m_matrix.y0; } // makes this the inverse matrix -void wxCairoMatrix::Invert() +void wxCairoMatrixData::Invert() { cairo_matrix_invert( &m_matrix ); } // returns true if the elements of the transformation matrix are equal ? -bool wxCairoMatrix::IsEqual( const wxGraphicsMatrix* t) const +bool wxCairoMatrixData::IsEqual( const wxGraphicsMatrixData* t) const { const cairo_matrix_t* tm = (cairo_matrix_t*) t->GetNativeMatrix(); - return ( - m_matrix.xx == tm->xx && - m_matrix.yx == tm->yx && - m_matrix.xy == tm->xy && - m_matrix.yy == tm->yy && - m_matrix.x0 == tm->x0 && + return ( + m_matrix.xx == tm->xx && + m_matrix.yx == tm->yx && + m_matrix.xy == tm->xy && + m_matrix.yy == tm->yy && + m_matrix.x0 == tm->x0 && m_matrix.y0 == tm->y0 ) ; } // return true if this is the identity matrix -bool wxCairoMatrix::IsIdentity() +bool wxCairoMatrixData::IsIdentity() const { return ( m_matrix.xx == 1 && m_matrix.yy == 1 && m_matrix.yx == 0 && m_matrix.xy == 0 && m_matrix.x0 == 0 && m_matrix.y0 == 0); @@ -920,29 +1163,29 @@ bool wxCairoMatrix::IsIdentity() // // add the translation to this matrix -void wxCairoMatrix::Translate( wxDouble dx , wxDouble dy ) +void wxCairoMatrixData::Translate( wxDouble dx , wxDouble dy ) { cairo_matrix_translate( &m_matrix, dx, dy) ; } // add the scale to this matrix -void wxCairoMatrix::Scale( wxDouble xScale , wxDouble yScale ) +void wxCairoMatrixData::Scale( wxDouble xScale , wxDouble yScale ) { cairo_matrix_scale( &m_matrix, xScale, yScale) ; } // add the rotation to this matrix (radians) -void wxCairoMatrix::Rotate( wxDouble angle ) +void wxCairoMatrixData::Rotate( wxDouble angle ) { cairo_matrix_rotate( &m_matrix, angle) ; -} +} // // apply the transforms // // applies that matrix to the point -void wxCairoMatrix::TransformPoint( wxDouble *x, wxDouble *y ) +void wxCairoMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const { double lx = *x, ly = *y ; cairo_matrix_transform_point( &m_matrix, &lx, &ly); @@ -951,7 +1194,7 @@ void wxCairoMatrix::TransformPoint( wxDouble *x, wxDouble *y ) } // applies the matrix except for translations -void wxCairoMatrix::TransformDistance( wxDouble *dx, wxDouble *dy ) +void wxCairoMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const { double lx = *dx, ly = *dy ; cairo_matrix_transform_distance( &m_matrix, &lx, &ly); @@ -960,129 +1203,683 @@ void wxCairoMatrix::TransformDistance( wxDouble *dx, wxDouble *dy ) } // returns the native representation -void * wxCairoMatrix::GetNativeMatrix() const +void * wxCairoMatrixData::GetNativeMatrix() const { return (void*) &m_matrix; } -//----------------------------------------------------------------------------- -// wxCairoContext implementation -//----------------------------------------------------------------------------- +// ---------------------------------------------------------------------------- +// wxCairoBitmap implementation +// ---------------------------------------------------------------------------- -wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& dc ) -: wxGraphicsContext(renderer) +int wxCairoBitmapData::InitBuffer(int width, int height, cairo_format_t format) { -#ifdef __WXGTK__ - m_context = gdk_cairo_create( dc.m_window ) ; + wxUnusedVar(format); // Only really unused with Cairo < 1.6. + + // 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); + + // 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."); + + stride += 4 - stride % 4; + } + } + else #endif - PushState(); - PushState(); + stride = 4*width; + + m_width = width; + m_height = height; + m_buffer = new unsigned char[height*stride]; + + return stride; } -#ifdef __WXGTK__ -wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawable ) -: wxGraphicsContext(renderer) +void wxCairoBitmapData::InitSurface(cairo_format_t format, int stride) { - m_context = gdk_cairo_create( drawable ) ; - PushState(); - PushState(); + 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); } -#endif -wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, cairo_t *context ) -: wxGraphicsContext(renderer) +wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, cairo_surface_t* bitmap ) : + wxGraphicsObjectRefData( renderer ) { - m_context = context ; - PushState(); - PushState(); + m_surface = bitmap; + m_pattern = cairo_pattern_create_for_surface(m_surface); } -wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window) -: wxGraphicsContext(renderer) +wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp ) : wxGraphicsObjectRefData( renderer ) { + wxCHECK_RET( bmp.IsOk(), wxT("Invalid bitmap in wxCairoContext::DrawBitmap")); + +#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) + || bmp.GetMask() +#endif + ? CAIRO_FORMAT_ARGB32 + : CAIRO_FORMAT_RGB24; - GtkWidget *widget = window->m_wxwindow; + int stride = InitBuffer(bmp.GetWidth(), bmp.GetHeight(), bufferFormat); - // 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 ( !widget ) + wxBitmap bmpSource = bmp; // we need a non-const instance + wxUint32* data = (wxUint32*)m_buffer; + + if ( bufferFormat == CAIRO_FORMAT_ARGB32 ) { - window = window->GetParent(); - widget = window->m_wxwindow; - } + // 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.")); - wxASSERT_MSG( widget, wxT("wxCairoContext needs a widget") ); + wxAlphaPixelData::Iterator p(pixData); + for (int y=0; ybin_window; - m_context = gdk_cairo_create( drawable ) ; -#endif - PushState(); - PushState(); -} + data = rowStartDst + stride / 4; + p = rowStart; + p.OffsetY(pixData, 1); + } + } + else // no alpha + { + wxNativePixelData + pixData(bmpSource, wxPoint(0, 0), wxSize(m_width, m_height)); + wxCHECK_RET( pixData, wxT("Failed to gain raw access to bitmap data.")); -wxCairoContext::~wxCairoContext() -{ - if ( m_context ) + wxNativePixelData::Iterator p(pixData); + for (int y=0; yGetNativePath() ; - cairo_append_path(m_context,cp); - ((wxCairoPenData*)m_pen.GetRefData())->Apply(this); - cairo_stroke(m_context); - wxConstCast(path, wxGraphicsPath)->UnGetNativePath(cp); - } -} + const cairo_format_t bufferFormat = image.HasAlpha() + ? CAIRO_FORMAT_ARGB32 + : CAIRO_FORMAT_RGB24; -void wxCairoContext::FillPath( const wxGraphicsPath *path , int fillStyle ) -{ - if ( !m_brush.IsNull() ) + int stride = InitBuffer(image.GetWidth(), image.GetHeight(), bufferFormat); + + // Copy wxImage data into the buffer. Notice that we work with wxUint32 + // values and not bytes becase Cairo always works with buffers in native + // endianness. + wxUint32* dst = reinterpret_cast(m_buffer); + const unsigned char* src = image.GetData(); + + if ( bufferFormat == CAIRO_FORMAT_ARGB32 ) { - cairo_path_t* cp = (cairo_path_t*) path->GetNativePath() ; - cairo_append_path(m_context,cp); - ((wxCairoBrushData*)m_brush.GetRefData())->Apply(this); - cairo_set_fill_rule(m_context,fillStyle==wxODDEVEN_RULE ? CAIRO_FILL_RULE_EVEN_ODD : CAIRO_FILL_RULE_WINDING); - cairo_fill(m_context); - wxConstCast(path, wxGraphicsPath)->UnGetNativePath(cp); - } -} + const unsigned char* alpha = image.GetAlpha(); -void wxCairoContext::Rotate( wxDouble angle ) -{ - cairo_rotate(m_context,angle); -} + for ( int y = 0; y < m_height; y++ ) + { + wxUint32* const rowStartDst = dst; -void wxCairoContext::Translate( wxDouble dx , wxDouble dy ) -{ + 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) +{ + m_context = context ; + PushState(); + PushState(); +} + + +void wxCairoContext::Clip( const wxRegion& region ) +{ + // Create a path with all the rectangles in the region + wxGraphicsPath path = GetRenderer()->CreatePath(); + wxRegionIterator ri(region); + while (ri) + { + path.AddRectangle(ri.GetX(), ri.GetY(), ri.GetW(), ri.GetH()); + ++ri; + } + + // Put it in the context + cairo_path_t* cp = (cairo_path_t*) path.GetNativePath() ; + cairo_append_path(m_context, cp); + + // clip to that path + cairo_clip(m_context); + path.UnGetNativePath(cp); +} + +void wxCairoContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) +{ + // Create a path with this rectangle + wxGraphicsPath path = GetRenderer()->CreatePath(); + path.AddRectangle(x,y,w,h); + + // Put it in the context + cairo_path_t* cp = (cairo_path_t*) path.GetNativePath() ; + cairo_append_path(m_context, cp); + + // clip to that path + cairo_clip(m_context); + path.UnGetNativePath(cp); +} + +void wxCairoContext::ResetClip() +{ + cairo_reset_clip(m_context); +} + + +void wxCairoContext::StrokePath( const wxGraphicsPath& path ) +{ + if ( !m_pen.IsNull() ) + { + wxCairoOffsetHelper helper( m_context, ShouldOffset() ) ; + cairo_path_t* cp = (cairo_path_t*) path.GetNativePath() ; + cairo_append_path(m_context,cp); + ((wxCairoPenData*)m_pen.GetRefData())->Apply(this); + cairo_stroke(m_context); + path.UnGetNativePath(cp); + } +} + +void wxCairoContext::FillPath( const wxGraphicsPath& path , wxPolygonFillMode fillStyle ) +{ + if ( !m_brush.IsNull() ) + { + wxCairoOffsetHelper helper( m_context, ShouldOffset() ) ; + cairo_path_t* cp = (cairo_path_t*) path.GetNativePath() ; + cairo_append_path(m_context,cp); + ((wxCairoBrushData*)m_brush.GetRefData())->Apply(this); + cairo_set_fill_rule(m_context,fillStyle==wxODDEVEN_RULE ? CAIRO_FILL_RULE_EVEN_ODD : CAIRO_FILL_RULE_WINDING); + cairo_fill(m_context); + path.UnGetNativePath(cp); + } +} + +void wxCairoContext::Rotate( wxDouble angle ) +{ + cairo_rotate(m_context,angle); +} + +void wxCairoContext::Translate( wxDouble dx , wxDouble dy ) +{ cairo_translate(m_context,dx,dy); } @@ -1092,21 +1889,23 @@ void wxCairoContext::Scale( wxDouble xScale , wxDouble yScale ) } // concatenates this transform with the current transform of this context -void wxCairoContext::ConcatTransform( const wxGraphicsMatrix* matrix ) +void wxCairoContext::ConcatTransform( const wxGraphicsMatrix& matrix ) { - cairo_transform(m_context,(const cairo_matrix_t *) matrix->GetNativeMatrix()); + cairo_transform(m_context,(const cairo_matrix_t *) matrix.GetNativeMatrix()); } // sets the transform of this context -void wxCairoContext::SetTransform( const wxGraphicsMatrix* matrix ) +void wxCairoContext::SetTransform( const wxGraphicsMatrix& matrix ) { - cairo_set_matrix(m_context,(const cairo_matrix_t*) matrix->GetNativeMatrix()); + cairo_set_matrix(m_context,(const cairo_matrix_t*) matrix.GetNativeMatrix()); } // gets the matrix of this context -void wxCairoContext::GetTransform( wxGraphicsMatrix* matrix ) +wxGraphicsMatrix wxCairoContext::GetTransform() const { - cairo_get_matrix(m_context,(cairo_matrix_t*) matrix->GetNativeMatrix()); + wxGraphicsMatrix matrix = CreateMatrix(); + cairo_get_matrix(m_context,(cairo_matrix_t*) matrix.GetNativeMatrix()); + return matrix; } @@ -1123,37 +1922,174 @@ void wxCairoContext::PopState() void wxCairoContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) { - /* - Bitmap* image = Bitmap::FromHBITMAP((HBITMAP)bmp.GetHBITMAP(),(HPALETTE)bmp.GetPalette()->GetHPALETTE()); - m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ; - delete image ; - */ + wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(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. + 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, size.GetWidth(), size.GetHeight()); + // fill the rectangle using the pattern + cairo_fill(m_context); + + PopState(); } void wxCairoContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) { - /* - Bitmap* image = Bitmap::FromHICON((HICON)icon.GetHICON()); - m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ; - delete image ; - */ + // An icon is a bitmap on wxGTK, so do this the easy way. When we want to + // start using the Cairo backend on other platforms then we may need to + // fiddle with this... + DrawBitmap(icon, x, y, w, h); } -void wxCairoContext::DrawText( const wxString &str, wxDouble x, wxDouble y ) +void wxCairoContext::DoDrawText(const wxString& str, wxDouble x, wxDouble y) { - if ( m_font.IsNull() || str.IsEmpty()) - return ; - cairo_move_to(m_context,x,y); - const wxWX2MBbuf buf(str.mb_str(wxConvUTF8)); - ((wxCairoFontData*)m_font.GetRefData())->Apply(this); - cairo_show_text(m_context,buf); + wxCHECK_RET( !m_font.IsNull(), + wxT("wxCairoContext::DrawText - no valid font set") ); + + if ( str.empty()) + return; + + const wxCharBuffer data = str.utf8_str(); + if ( !data ) + return; + + if ( ((wxCairoFontData*)m_font.GetRefData())->Apply(this) ) + { +#ifdef __WXGTK__ + size_t datalen = strlen(data); + + 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 + } + + // 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; + cairo_font_extents(m_context, &fe); + cairo_move_to(m_context, x, y+fe.ascent); + + cairo_show_text(m_context, data); } void wxCairoContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height, wxDouble *descent, wxDouble *externalLeading ) const { - // TODO + wxCHECK_RET( !m_font.IsNull(), wxT("wxCairoContext::GetTextExtent - no valid font set") ); + + if ( width ) + *width = 0; + if ( height ) + *height = 0; + if ( descent ) + *descent = 0; + if ( externalLeading ) + *externalLeading = 0; + + if ( str.empty()) + return; + + if ( ((wxCairoFontData*)m_font.GetRefData())->Apply((wxCairoContext*)this) ) + { +#ifdef __WXGTK__ + 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 ) + { + 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 + } + + if (width) + { + const wxWX2MBbuf buf(str.mb_str(wxConvUTF8)); + cairo_text_extents_t te; + cairo_text_extents(m_context, buf, &te); + *width = te.width; + } + + if (height || descent || externalLeading) + { + cairo_font_extents_t fe; + cairo_font_extents(m_context, &fe); + + // some backends have negative descents + + if ( fe.descent < 0 ) + fe.descent = -fe.descent; + + if ( fe.height < (fe.ascent + fe.descent ) ) + { + // some backends are broken re height ... (eg currently ATSUI) + fe.height = fe.ascent + fe.descent; + } + + if (height) + *height = fe.height; + if ( descent ) + *descent = fe.descent; + if ( externalLeading ) + *externalLeading = wxMax(0, fe.height - (fe.ascent + fe.descent)); + } } void wxCairoContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const @@ -1161,17 +2097,117 @@ void wxCairoContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths.Empty(); widths.Add(0, text.length()); + wxCHECK_RET( !m_font.IsNull(), wxT("wxCairoContext::GetPartialTextExtents - no valid font set") ); + if (text.empty()) return; // TODO } -void * wxCairoContext::GetNativeContext() +void * wxCairoContext::GetNativeContext() { return m_context; } +bool wxCairoContext::SetAntialiasMode(wxAntialiasMode antialias) +{ + if (m_antialias == antialias) + return true; + + 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; + + m_composition = op; + cairo_operator_t cop; + switch (op) + { + case wxCOMPOSITION_CLEAR: + cop = CAIRO_OPERATOR_CLEAR; + break; + case wxCOMPOSITION_SOURCE: + cop = CAIRO_OPERATOR_SOURCE; + break; + case wxCOMPOSITION_OVER: + cop = CAIRO_OPERATOR_OVER; + break; + 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; + default: + return false; + } + 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 //----------------------------------------------------------------------------- @@ -1186,20 +2222,31 @@ public : // Context virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc); + virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc); + virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc); 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(); + virtual wxGraphicsPath CreatePath(); // Matrix - virtual wxGraphicsMatrix * CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0, + virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0, wxDouble tx=0.0, wxDouble ty=0.0); @@ -1207,19 +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 + 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 ); + +protected : + bool EnsureIsLoaded(); + void Load(); + void Unload(); + friend class wxCairoModule; private : + int m_loaded; DECLARE_DYNAMIC_CLASS_NO_COPY(wxCairoRenderer) } ; @@ -1230,61 +2302,144 @@ private : IMPLEMENT_DYNAMIC_CLASS(wxCairoRenderer,wxGraphicsRenderer) static wxCairoRenderer gs_cairoGraphicsRenderer; +// temporary hack to allow creating a cairo context on any platform +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(); + if (context) + return new wxCairoContext(this,dc); + else +#endif + 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 ); } // Path -wxGraphicsPath * wxCairoRenderer::CreatePath() +wxGraphicsPath wxCairoRenderer::CreatePath() { - return new wxCairoPath( this ); + ENSURE_LOADED_OR_RETURN(wxNullGraphicsPath); + wxGraphicsPath path; + path.SetRefData( new wxCairoPathData(this) ); + return path; } // Matrix -wxGraphicsMatrix * wxCairoRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d, - wxDouble tx, wxDouble ty) +wxGraphicsMatrix wxCairoRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d, + wxDouble tx, wxDouble ty) { - wxCairoMatrix* m = new wxCairoMatrix( this ); - m->Set( a,b,c,d,tx,ty ) ; + ENSURE_LOADED_OR_RETURN(wxNullGraphicsMatrix); + wxGraphicsMatrix m; + wxCairoMatrixData* data = new wxCairoMatrixData( this ); + data->Set( a,b,c,d,tx,ty ) ; + m.SetRefData(data); return m; } -wxGraphicsPen wxCairoRenderer::CreatePen(const wxPen& pen) +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 { @@ -1294,9 +2449,10 @@ wxGraphicsPen wxCairoRenderer::CreatePen(const wxPen& pen) } } -wxGraphicsBrush wxCairoRenderer::CreateBrush(const wxBrush& brush ) +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 { @@ -1306,34 +2462,37 @@ 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 ) +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 )); return p; @@ -1342,4 +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