X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/cd5adaa64957e18490519946013bdf02a9c55588..6ba718d7aee2f519d9146b90424ccec9e2243479:/src/generic/graphicc.cpp diff --git a/src/generic/graphicc.cpp b/src/generic/graphicc.cpp old mode 100755 new mode 100644 index 83e1eda97b..c89d338f51 --- a/src/generic/graphicc.cpp +++ b/src/generic/graphicc.cpp @@ -4,69 +4,44 @@ // Author: Stefan Csomor // Modified by: // Created: 2006-10-03 -// RCS-ID: $Id$ // Copyright: (c) 2006 Stefan Csomor // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #include "wx/wxprec.h" -#include "wx/dc.h" - #ifdef __BORLANDC__ -#pragma hdrstop + #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" -#endif +#if wxUSE_GRAPHICS_CONTEXT #include "wx/graphics.h" -#if wxUSE_GRAPHICS_CONTEXT - -#include +#if wxUSE_CAIRO -using namespace std; +// 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 -//----------------------------------------------------------------------------- -// constants -//----------------------------------------------------------------------------- +#include -const double RAD2DEG = 180.0 / M_PI; +bool wxCairoInit(); -//----------------------------------------------------------------------------- -// 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" + #include "wx/window.h" +#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 @@ -95,15 +70,35 @@ static inline double RadToDeg(double deg) #endif #include +#ifdef __WXMSW__ +#include +// Notice that the order is important: cairo-win32.h includes windows.h which +// pollutes the global name space with macros so include our own header which +// #undefines them after it. +#include "wx/msw/private.h" +#endif + +#ifdef __WXGTK__ #include +#include "wx/fontutil.h" +#ifndef __WXGTK3__ +#include "wx/gtk/dc.h" +#endif +#endif + +#ifdef __WXMAC__ +#include "wx/osx/private.h" +#include +#include +#endif -class WXDLLEXPORT wxCairoPath : public wxGraphicsPath +class WXDLLIMPEXP_CORE wxCairoPathData : public wxGraphicsPathData { - DECLARE_NO_COPY_CLASS(wxCairoPath) public : - wxCairoPath(); - ~wxCairoPath(); + wxCairoPathData(wxGraphicsRenderer* renderer, cairo_t* path = NULL); + ~wxCairoPathData(); + virtual wxGraphicsObjectRefData *Clone() const; // // These are the path primitives from which everything else can be constructed @@ -123,7 +118,10 @@ 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 wxGraphicsPathData* path ); // closes the current sub-path virtual void CloseSubpath(); @@ -135,7 +133,7 @@ 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 ) ; @@ -148,106 +146,282 @@ 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( 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) const; + + virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxWINDING_RULE) const; private : cairo_t* m_pathContext; }; -wxCairoPath::wxCairoPath() +class WXDLLIMPEXP_CORE wxCairoMatrixData : public wxGraphicsMatrixData { - cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,1,1); - m_pathContext = cairo_create(surface); - cairo_surface_destroy (surface); -} +public : + wxCairoMatrixData(wxGraphicsRenderer* renderer, const cairo_matrix_t* matrix = NULL ) ; + virtual ~wxCairoMatrixData() ; -wxCairoPath::~wxCairoPath() -{ - cairo_destroy(m_pathContext); -} + virtual wxGraphicsObjectRefData *Clone() const ; -void* wxCairoPath::GetNativePath() const -{ - return cairo_copy_path(m_pathContext) ; -} + // concatenates the matrix + virtual void Concat( const wxGraphicsMatrixData *t ); -void wxCairoPath::UnGetNativePath(void *p) -{ - cairo_path_destroy((cairo_path_t*)p); -} + // 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, + wxDouble tx=0.0, wxDouble ty=0.0); -// -// The Primitives -// + // 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; -void wxCairoPath::MoveToPoint( wxDouble x , wxDouble y ) -{ - cairo_move_to(m_pathContext,x,y); -} + // makes this the inverse matrix + virtual void Invert(); -void wxCairoPath::AddLineToPoint( wxDouble x , wxDouble y ) -{ - cairo_line_to(m_pathContext,x,y); -} + // returns true if the elements of the transformation matrix are equal ? + virtual bool IsEqual( const wxGraphicsMatrixData* t) const ; -void wxCairoPath::CloseSubpath() -{ - cairo_close_path(m_pathContext); -} + // return true if this is the identity matrix + virtual bool IsIdentity() const; -void wxCairoPath::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y ) -{ - cairo_curve_to(m_pathContext,cx1,cy1,cx2,cy2,x,y); -} + // + // transformation + // -// gets the last point of the current path, (0,0) if not yet set -void wxCairoPath::GetCurrentPoint( wxDouble& x, wxDouble&y) + // add the translation to this matrix + virtual void Translate( wxDouble dx , wxDouble dy ); + + // add the scale to this matrix + virtual void Scale( wxDouble xScale , wxDouble yScale ); + + // add the rotation to this matrix (radians) + virtual void Rotate( wxDouble angle ); + + // + // apply the transforms + // + + // applies that matrix to the point + virtual void TransformPoint( wxDouble *x, wxDouble *y ) const; + + // applies the matrix except for translations + virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const; + + // returns the native representation + virtual void * GetNativeMatrix() const; +private: + cairo_matrix_t m_matrix ; +} ; + +// Common base class for pens and brushes. +class wxCairoPenBrushBaseData : public wxGraphicsObjectRefData { - double dx,dy; - cairo_get_current_point(m_pathContext,&dx,&dy); - x = dx; - y = dy; -} +public: + wxCairoPenBrushBaseData(wxGraphicsRenderer* renderer, + const wxColour& col, + bool isTransparent); + virtual ~wxCairoPenBrushBaseData(); + + virtual void Apply( wxGraphicsContext* context ); + +protected: + // Call this to use the given bitmap as stipple. Bitmap must be non-null + // and valid. + void InitStipple(wxBitmap* bmp); + + // Call this to use the given hatch style. Hatch style must be valid. + void InitHatch(wxHatchStyle hatchStyle); + + + double m_red; + double m_green; + double m_blue; + double m_alpha; + + cairo_pattern_t* m_pattern; + class wxCairoBitmapData* m_bmpdata; + +private: + // Called once to allocate m_pattern if needed. + void InitHatchPattern(cairo_t* ctext); + + wxHatchStyle m_hatchStyle; + + wxDECLARE_NO_COPY_CLASS(wxCairoPenBrushBaseData); +}; -void wxCairoPath::AddArc( wxDouble x, wxDouble y, wxDouble r, double startAngle, double endAngle, bool clockwise ) +class WXDLLIMPEXP_CORE wxCairoPenData : public wxCairoPenBrushBaseData { - // 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) - cairo_arc(m_pathContext,x,y,r,startAngle,endAngle); - else - cairo_arc_negative(m_pathContext,x,y,r,startAngle,endAngle); -} +public: + wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen ); + ~wxCairoPenData(); + + void Init(); + + virtual void Apply( wxGraphicsContext* context ); + virtual wxDouble GetWidth() { return m_width; } + +private : + double m_width; -/* -void wxCairoPath::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) + cairo_line_cap_t m_cap; + cairo_line_join_t m_join; + + int m_count; + const double *m_lengths; + double *m_userLengths; + + wxDECLARE_NO_COPY_CLASS(wxCairoPenData); +}; + +class WXDLLIMPEXP_CORE wxCairoBrushData : public wxCairoPenBrushBaseData { - m_path->AddRectangle(RectF(x,y,w,h)); -} -*/ -// -// -// -/* -// closes the current subpath -void wxCairoPath::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r ) +public: + wxCairoBrushData( wxGraphicsRenderer* renderer ); + wxCairoBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush ); + + 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); +}; + +class wxCairoFontData : public wxGraphicsObjectRefData { -// CGPathAddArcToPoint( m_path, NULL , x1, y1, x2, y2, r); -} - -*/ +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 bool Apply( wxGraphicsContext* context ); +#ifdef __WXGTK__ + const wxFont& GetFont() const { return m_wxfont; } +#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; + double m_blue; + double m_alpha; +#ifdef __WXMAC__ + cairo_font_face_t *m_font; +#elif defined(__WXGTK__) + wxFont m_wxfont; +#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 WXDLLEXPORT wxCairoContext : public wxGraphicsContext +class wxCairoBitmapData : public wxGraphicsBitmapData { - 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 void* GetNativeBitmap() const { return m_surface; } + 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( const wxWindowDC& dc ); - wxCairoContext(); + wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& dc ); + wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& dc ); + wxCairoContext( wxGraphicsRenderer* renderer, const wxPrinterDC& dc ); +#ifdef __WXGTK__ + wxCairoContext( wxGraphicsRenderer* renderer, GdkWindow *window ); +#endif +#ifdef __WXMSW__ + wxCairoContext( wxGraphicsRenderer* renderer, HDC context ); +#endif + wxCairoContext( wxGraphicsRenderer* renderer, cairo_t *context ); + wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window); + + // 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; + WindowHDC m_mswWindowHDC; +#endif // clips drawings to the rect virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h ); @@ -257,311 +431,1553 @@ 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 wxGraphicsPath* CreatePath(); - virtual void SetPen( const wxPen &pen ); - virtual void SetBrush( const wxBrush &brush ); - virtual void SetLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, const wxColour&c1, const wxColour&c2) ; - virtual void SetRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius, - const wxColour &oColor, const wxColour &cColor); + 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 ); + + // sets the transform of this context + virtual void SetTransform( const wxGraphicsMatrix& matrix ); + + // 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(); virtual void PopState(); - virtual void SetFont( const wxFont &font ); - virtual void SetTextColor( const wxColour &col ); - 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; - bool m_penTransparent; - bool m_brushTransparent; - wxPen m_pen; - wxBrush m_brush; - cairo_pattern_t* m_brushPattern; - wxColour m_textColour; + 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 -//----------------------------------------------------------------------------- -// wxCairoContext implementation +// ---------------------------------------------------------------------------- +// wxCairoPenBrushBaseData implementation //----------------------------------------------------------------------------- -wxCairoContext::wxCairoContext( const wxWindowDC& dc ) +wxCairoPenBrushBaseData::wxCairoPenBrushBaseData(wxGraphicsRenderer* renderer, + const wxColour& col, + bool isTransparent) + : wxGraphicsObjectRefData(renderer) { - m_context = gdk_cairo_create( dc.m_window ) ; - PushState(); - PushState(); - m_penTransparent = true; - m_brushTransparent = true; - m_brushPattern = NULL ; + m_hatchStyle = wxHATCHSTYLE_INVALID; + m_pattern = NULL; + m_bmpdata = NULL; + + if ( isTransparent ) + { + m_red = + m_green = + m_blue = + m_alpha = 0; + } + else // non-transparent + { + m_red = col.Red()/255.0; + m_green = col.Green()/255.0; + m_blue = col.Blue()/255.0; + m_alpha = col.Alpha()/255.0; + } } -wxCairoContext::~wxCairoContext() +wxCairoPenBrushBaseData::~wxCairoPenBrushBaseData() { - if ( m_context ) + if (m_bmpdata) { - PopState(); - PopState(); - cairo_destroy(m_context); - if ( m_brushPattern ) - cairo_pattern_destroy(m_brushPattern); + // Deleting the bitmap data also deletes the pattern referenced by + // m_pattern, so set it to NULL to avoid deleting it twice. + delete m_bmpdata; + m_pattern = NULL; } + if (m_pattern) + cairo_pattern_destroy(m_pattern); } - -void wxCairoContext::Clip( const wxRegion & WXUNUSED(region) ) +void wxCairoPenBrushBaseData::InitHatchPattern(cairo_t* ctext) { -// TODO + cairo_surface_t* const + surface = cairo_surface_create_similar( + cairo_get_target(ctext), CAIRO_CONTENT_COLOR_ALPHA, 10, 10 + ); + + cairo_t* const cr = cairo_create(surface); + cairo_set_line_cap(cr, CAIRO_LINE_CAP_SQUARE); + cairo_set_line_width(cr, 1); + cairo_set_line_join(cr,CAIRO_LINE_JOIN_MITER); + + switch ( m_hatchStyle ) + { + case wxHATCHSTYLE_CROSS: + cairo_move_to(cr, 5, 0); + cairo_line_to(cr, 5, 10); + cairo_move_to(cr, 0, 5); + cairo_line_to(cr, 10, 5); + break; + + case wxHATCHSTYLE_BDIAGONAL: + cairo_move_to(cr, 0, 10); + cairo_line_to(cr, 10, 0); + break; + + case wxHATCHSTYLE_FDIAGONAL: + cairo_move_to(cr, 0, 0); + cairo_line_to(cr, 10, 10); + break; + + case wxHATCHSTYLE_CROSSDIAG: + cairo_move_to(cr, 0, 0); + cairo_line_to(cr, 10, 10); + cairo_move_to(cr, 10, 0); + cairo_line_to(cr, 0, 10); + break; + + case wxHATCHSTYLE_HORIZONTAL: + cairo_move_to(cr, 0, 5); + cairo_line_to(cr, 10, 5); + break; + + case wxHATCHSTYLE_VERTICAL: + cairo_move_to(cr, 5, 0); + cairo_line_to(cr, 5, 10); + break; + + default: + wxFAIL_MSG(wxS("Invalid hatch pattern style.")); + } + + cairo_set_source_rgba(cr, m_red, m_green, m_blue, m_alpha); + cairo_stroke(cr); + + cairo_destroy(cr); + + m_pattern = cairo_pattern_create_for_surface(surface); + cairo_surface_destroy(surface); + cairo_pattern_set_extend(m_pattern, CAIRO_EXTEND_REPEAT); } -void wxCairoContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) +void wxCairoPenBrushBaseData::InitStipple(wxBitmap* bmp) { -// TODO + wxCHECK_RET( bmp && bmp->IsOk(), wxS("Invalid stippled bitmap") ); + + m_bmpdata = new wxCairoBitmapData(GetRenderer(), *bmp); + m_pattern = m_bmpdata->GetCairoPattern(); + cairo_pattern_set_extend(m_pattern, CAIRO_EXTEND_REPEAT); } -void wxCairoContext::ResetClip() +void wxCairoPenBrushBaseData::InitHatch(wxHatchStyle hatchStyle) { -// TODO + // We can't create m_pattern right now as we don't have the Cairo context + // needed for it, so just remember that we need to do it. + m_hatchStyle = hatchStyle; } - -void wxCairoContext::StrokePath( const wxGraphicsPath *path ) +void wxCairoPenBrushBaseData::Apply( wxGraphicsContext* context ) { - if ( m_penTransparent ) - return; + cairo_t* const ctext = (cairo_t*) context->GetNativeContext(); + + if ( m_hatchStyle != wxHATCHSTYLE_INVALID && !m_pattern ) + InitHatchPattern(ctext); + + if ( m_pattern ) + cairo_set_source(ctext, m_pattern); + else + cairo_set_source_rgba(ctext, m_red, m_green, m_blue, m_alpha); +} - cairo_path_t* cp = (cairo_path_t*) path->GetNativePath() ; - cairo_append_path(m_context,cp); +//----------------------------------------------------------------------------- +// wxCairoPenData implementation +//----------------------------------------------------------------------------- - // setup pen +wxCairoPenData::~wxCairoPenData() +{ + delete[] m_userLengths; +} - // TODO: * m_dc->m_scaleX - double penWidth = m_pen.GetWidth(); - if (penWidth <= 0.0) - penWidth = 0.1; +void wxCairoPenData::Init() +{ + m_lengths = NULL; + m_userLengths = NULL; + m_width = 0; + m_count = 0; +} - cairo_set_line_width(m_context,penWidth); - cairo_set_source_rgba(m_context,m_pen.GetColour().Red()/255.0, - m_pen.GetColour().Green()/255.0, m_pen.GetColour().Blue()/255.0,m_pen.GetColour().Alpha()/255.0); +wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) + : wxCairoPenBrushBaseData(renderer, pen.GetColour(), pen.IsTransparent()) +{ + Init(); + m_width = pen.GetWidth(); + if (m_width <= 0.0) + m_width = 0.1; - cairo_line_cap_t cap; - switch ( m_pen.GetCap() ) + switch ( pen.GetCap() ) { case wxCAP_ROUND : - cap = CAIRO_LINE_CAP_ROUND; + m_cap = CAIRO_LINE_CAP_ROUND; break; case wxCAP_PROJECTING : - cap = CAIRO_LINE_CAP_SQUARE; + m_cap = CAIRO_LINE_CAP_SQUARE; break; case wxCAP_BUTT : - cap = CAIRO_LINE_CAP_BUTT; + m_cap = CAIRO_LINE_CAP_BUTT; break; default : - cap = CAIRO_LINE_CAP_BUTT; + m_cap = CAIRO_LINE_CAP_BUTT; break; } - cairo_set_line_cap(m_context,cap); - cairo_line_join_t join; - switch ( m_pen.GetJoin() ) + switch ( pen.GetJoin() ) { case wxJOIN_BEVEL : - join = CAIRO_LINE_JOIN_BEVEL; + m_join = CAIRO_LINE_JOIN_BEVEL; break; case wxJOIN_MITER : - join = CAIRO_LINE_JOIN_MITER; + m_join = CAIRO_LINE_JOIN_MITER; break; case wxJOIN_ROUND : - join = CAIRO_LINE_JOIN_ROUND; + m_join = CAIRO_LINE_JOIN_ROUND; break; default : - join = CAIRO_LINE_JOIN_MITER; + m_join = CAIRO_LINE_JOIN_MITER; break; } - cairo_set_line_join(m_context,join); - int num_dashes = 0; - const double * dashes = NULL; - double offset = 0.0; - - const double dashUnit = penWidth < 1.0 ? 1.0 : penWidth; - - double *userLengths = NULL; + const double dashUnit = m_width < 1.0 ? 1.0 : m_width; const double dotted[] = - { - dashUnit , dashUnit + 2.0 - }; - const double short_dashed[] = - { - 9.0 , 6.0 - }; - const double dashed[] = - { - 19.0 , 9.0 - }; - const double dotted_dashed[] = - { - 9.0 , 6.0 , 3.0 , 3.0 - }; + { + dashUnit , dashUnit + 2.0 + }; + static const double short_dashed[] = + { + 9.0 , 6.0 + }; + static const double dashed[] = + { + 19.0 , 9.0 + }; + static const double dotted_dashed[] = + { + 9.0 , 6.0 , 3.0 , 3.0 + }; - switch ( m_pen.GetStyle() ) + switch ( pen.GetStyle() ) { - case wxSOLID : + case wxPENSTYLE_SOLID : break; - case wxDOT : - dashes = dotted ; - num_dashes = WXSIZEOF(dotted) - ; + 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 : - dashes = dotted ; - num_dashes = WXSIZEOF(dashed); + case wxPENSTYLE_LONG_DASH : + m_lengths = dashed ; + m_count = WXSIZEOF(dashed); break; - case wxSHORT_DASH : - dashes = dotted ; - num_dashes = WXSIZEOF(short_dashed); + case wxPENSTYLE_SHORT_DASH : + m_lengths = short_dashed ; + m_count = WXSIZEOF(short_dashed); break; - case wxDOT_DASH : - dashes = dotted ; - num_dashes = WXSIZEOF(dotted_dashed); + case wxPENSTYLE_DOT_DASH : + m_lengths = dotted_dashed ; + m_count = WXSIZEOF(dotted_dashed); break; - case wxUSER_DASH : + case wxPENSTYLE_USER_DASH : { wxDash *wxdashes ; - num_dashes = m_pen.GetDashes( &wxdashes ) ; - if ((wxdashes != NULL) && (num_dashes > 0)) + m_count = pen.GetDashes( &wxdashes ) ; + if ((wxdashes != NULL) && (m_count > 0)) { - userLengths = new double[num_dashes] ; - for ( int i = 0 ; i < num_dashes ; ++i ) + m_userLengths = new double[m_count] ; + for ( int i = 0 ; i < m_count ; ++i ) { - userLengths[i] = wxdashes[i] * dashUnit ; + m_userLengths[i] = wxdashes[i] * dashUnit ; - if ( i % 2 == 1 && userLengths[i] < dashUnit + 2.0 ) - userLengths[i] = dashUnit + 2.0 ; - else if ( i % 2 == 0 && userLengths[i] < dashUnit ) - userLengths[i] = dashUnit ; + if ( i % 2 == 1 && m_userLengths[i] < dashUnit + 2.0 ) + m_userLengths[i] = dashUnit + 2.0 ; + else if ( i % 2 == 0 && m_userLengths[i] < dashUnit ) + m_userLengths[i] = dashUnit ; } } - dashes = userLengths ; + m_lengths = m_userLengths ; } break; - case wxSTIPPLE : - { - /* - wxBitmap* bmp = pen.GetStipple(); - if ( bmp && bmp->Ok() ) - { - wxDELETE( m_penImage ); - wxDELETE( m_penBrush ); - m_penImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE()); - m_penBrush = new TextureBrush(m_penImage); - m_pen->SetBrush( m_penBrush ); - } - */ - } + + case wxPENSTYLE_STIPPLE : + case wxPENSTYLE_STIPPLE_MASK : + case wxPENSTYLE_STIPPLE_MASK_OPAQUE : + InitStipple(pen.GetStipple()); break; + default : - if ( m_pen.GetStyle() >= wxFIRST_HATCH && m_pen.GetStyle() <= wxLAST_HATCH ) + if ( pen.GetStyle() >= wxPENSTYLE_FIRST_HATCH + && pen.GetStyle() <= wxPENSTYLE_LAST_HATCH ) { - /* - wxDELETE( m_penBrush ); - HatchStyle style = HatchStyleHorizontal; - switch( pen.GetStyle() ) - { - case wxBDIAGONAL_HATCH : - style = HatchStyleBackwardDiagonal; - break ; - case wxCROSSDIAG_HATCH : - style = HatchStyleDiagonalCross; - break ; - case wxFDIAGONAL_HATCH : - style = HatchStyleForwardDiagonal; - break ; - case wxCROSS_HATCH : - style = HatchStyleCross; - break ; - case wxHORIZONTAL_HATCH : - style = HatchStyleHorizontal; - break ; - case wxVERTICAL_HATCH : - style = HatchStyleVertical; - break ; - - } - m_penBrush = new HatchBrush(style,Color( pen.GetColour().Alpha() , pen.GetColour().Red() , - pen.GetColour().Green() , pen.GetColour().Blue() ), Color.Transparent ); - m_pen->SetBrush( m_penBrush ) - */ + InitHatch(static_cast(pen.GetStyle())); } break; } +} + +void wxCairoPenData::Apply( wxGraphicsContext* context ) +{ + wxCairoPenBrushBaseData::Apply(context); - cairo_set_dash(m_context,(double*)dashes,num_dashes,offset); - if ( userLengths ) - delete[] userLengths; - cairo_stroke(m_context); - wxConstCast(path, wxGraphicsPath)->UnGetNativePath(cp); + cairo_t * ctext = (cairo_t*) context->GetNativeContext(); + cairo_set_line_width(ctext,m_width); + cairo_set_line_cap(ctext,m_cap); + cairo_set_line_join(ctext,m_join); + cairo_set_dash(ctext,(double*)m_lengths,m_count,0.0); } -void wxCairoContext::FillPath( const wxGraphicsPath *path , int fillStyle ) +//----------------------------------------------------------------------------- +// wxCairoBrushData implementation +//----------------------------------------------------------------------------- + +wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer ) + : wxCairoPenBrushBaseData(renderer, wxColour(), true /* transparent */) { - if ( !m_brushTransparent ) - { - cairo_path_t* cp = (cairo_path_t*) path->GetNativePath() ; - cairo_append_path(m_context,cp); + Init(); +} - if ( m_brushPattern ) - { - cairo_set_source(m_context,m_brushPattern); - } - else - { - cairo_set_source_rgba(m_context,m_brush.GetColour().Red()/255.0, - m_brush.GetColour().Green()/255.0, - m_brush.GetColour().Blue()/255.0, - m_brush.GetColour().Alpha()/255.0); - } +wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer, + const wxBrush &brush ) + : wxCairoPenBrushBaseData(renderer, brush.GetColour(), brush.IsTransparent()) +{ + Init(); - 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); + switch ( brush.GetStyle() ) + { + case wxBRUSHSTYLE_STIPPLE: + case wxBRUSHSTYLE_STIPPLE_MASK: + case wxBRUSHSTYLE_STIPPLE_MASK_OPAQUE: + InitStipple(brush.GetStipple()); + break; + + default: + if ( brush.IsHatch() ) + InitHatch(static_cast(brush.GetStyle())); + break; } } -wxGraphicsPath* wxCairoContext::CreatePath() +void wxCairoBrushData::AddGradientStops(const wxGraphicsGradientStops& stops) { - return new wxCairoPath(); + // 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_pattern, + stop.GetPosition(), + col.Red()/255.0, + col.Green()/255.0, + col.Blue()/255.0, + col.Alpha()/255.0 + ); + } + + wxASSERT_MSG(cairo_pattern_status(m_pattern) == CAIRO_STATUS_SUCCESS, + wxT("Couldn't create cairo pattern")); } -void wxCairoContext::Rotate( wxDouble angle ) +void +wxCairoBrushData::CreateLinearGradientBrush(wxDouble x1, wxDouble y1, + wxDouble x2, wxDouble y2, + const wxGraphicsGradientStops& stops) { - cairo_rotate(m_context,angle); + m_pattern = cairo_pattern_create_linear(x1,y1,x2,y2); + + AddGradientStops(stops); +} + +void +wxCairoBrushData::CreateRadialGradientBrush(wxDouble xo, wxDouble yo, + wxDouble xc, wxDouble yc, + wxDouble radius, + const wxGraphicsGradientStops& stops) +{ + m_pattern = cairo_pattern_create_radial(xo,yo,0.0,xc,yc,radius); + + AddGradientStops(stops); +} + +void wxCairoBrushData::Init() +{ + m_pattern = NULL; + m_bmpdata = NULL; +} + +//----------------------------------------------------------------------------- +// wxCairoFontData implementation +//----------------------------------------------------------------------------- + +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) +#ifdef __WXGTK__ + , m_wxfont(font) +#endif +{ + InitColour(col); + + m_size = font.GetPointSize(); + +#ifdef __WXMAC__ + m_font = cairo_quartz_font_face_create_for_cgfont( font.OSXGetCGFont() ); +#elif defined(__WXGTK__) +#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(__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 ); +#endif +} + +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__ + if (m_wxfont.IsOk()) + { + // 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; +} + +//----------------------------------------------------------------------------- +// wxCairoPathData implementation +//----------------------------------------------------------------------------- + +wxCairoPathData::wxCairoPathData( wxGraphicsRenderer* renderer, cairo_t* pathcontext) + : wxGraphicsPathData(renderer) +{ + if (pathcontext) + { + m_pathContext = pathcontext; + } + else + { + cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,1,1); + m_pathContext = cairo_create(surface); + cairo_surface_destroy (surface); + } +} + +wxCairoPathData::~wxCairoPathData() +{ + cairo_destroy(m_pathContext); +} + +wxGraphicsObjectRefData *wxCairoPathData::Clone() const +{ + cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,1,1); + cairo_t* pathcontext = cairo_create(surface); + cairo_surface_destroy (surface); + + cairo_path_t* path = cairo_copy_path(m_pathContext); + cairo_append_path(pathcontext, path); + cairo_path_destroy(path); + return new wxCairoPathData( GetRenderer() ,pathcontext); +} + + +void* wxCairoPathData::GetNativePath() const +{ + return cairo_copy_path(m_pathContext) ; +} + +void wxCairoPathData::UnGetNativePath(void *p) const +{ + cairo_path_destroy((cairo_path_t*)p); +} + +// +// The Primitives +// + +void wxCairoPathData::MoveToPoint( wxDouble x , wxDouble y ) +{ + cairo_move_to(m_pathContext,x,y); +} + +void wxCairoPathData::AddLineToPoint( wxDouble x , wxDouble y ) +{ + cairo_line_to(m_pathContext,x,y); +} + +void wxCairoPathData::AddPath( const wxGraphicsPathData* path ) +{ + cairo_path_t* p = (cairo_path_t*)path->GetNativePath(); + cairo_append_path(m_pathContext, p); + UnGetNativePath(p); +} + +void wxCairoPathData::CloseSubpath() +{ + cairo_close_path(m_pathContext); +} + +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 wxCairoPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const +{ + double dx,dy; + cairo_get_current_point(m_pathContext,&dx,&dy); + if (x) + *x = dx; + if (y) + *y = dy; +} + +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) + // TODO make this interpretation dependent of the + // real device trans + if ( clockwise||(endAngle-startAngle)>=2*M_PI) + cairo_arc(m_pathContext,x,y,r,startAngle,endAngle); + else + cairo_arc_negative(m_pathContext,x,y,r,startAngle,endAngle); +} + +// transforms each point of this path by the 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 wxCairoPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const +{ + double x1,y1,x2,y2; + + cairo_stroke_extents( m_pathContext, &x1, &y1, &x2, &y2 ); + if ( x2 < x1 ) + { + *x = x2; + *w = x1-x2; + } + else + { + *x = x1; + *w = x2-x1; + } + + if( y2 < y1 ) + { + *y = y2; + *h = y1-y2; + } + else + { + *y = y1; + *h = y2-y1; + } +} + +bool wxCairoPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle ) const +{ + 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; +} + +//----------------------------------------------------------------------------- +// wxCairoMatrixData implementation +//----------------------------------------------------------------------------- + +wxCairoMatrixData::wxCairoMatrixData(wxGraphicsRenderer* renderer, const cairo_matrix_t* matrix ) + : wxGraphicsMatrixData(renderer) +{ + if ( matrix ) + m_matrix = *matrix; +} + +wxCairoMatrixData::~wxCairoMatrixData() +{ + // nothing to do +} + +wxGraphicsObjectRefData *wxCairoMatrixData::Clone() const +{ + return new wxCairoMatrixData(GetRenderer(),&m_matrix); +} + +// concatenates the matrix +void wxCairoMatrixData::Concat( const wxGraphicsMatrixData *t ) +{ + cairo_matrix_multiply( &m_matrix, &m_matrix, (cairo_matrix_t*) t->GetNativeMatrix()); +} + +// sets the matrix to the respective values +void wxCairoMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d, + wxDouble tx, wxDouble ty) +{ + cairo_matrix_init( &m_matrix, a, b, c, d, tx, ty); +} + +// gets the component valuess of the matrix +void wxCairoMatrixData::Get(wxDouble* a, wxDouble* b, wxDouble* c, + wxDouble* d, wxDouble* tx, wxDouble* ty) const +{ + 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 wxCairoMatrixData::Invert() +{ + cairo_matrix_invert( &m_matrix ); +} + +// returns true if the elements of the transformation matrix are equal ? +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 && + m_matrix.y0 == tm->y0 ) ; +} + +// return true if this is the identity matrix +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); +} + +// +// transformation +// + +// add the translation to this matrix +void wxCairoMatrixData::Translate( wxDouble dx , wxDouble dy ) +{ + cairo_matrix_translate( &m_matrix, dx, dy) ; +} + +// add the scale to this matrix +void wxCairoMatrixData::Scale( wxDouble xScale , wxDouble yScale ) +{ + cairo_matrix_scale( &m_matrix, xScale, yScale) ; +} + +// add the rotation to this matrix (radians) +void wxCairoMatrixData::Rotate( wxDouble angle ) +{ + cairo_matrix_rotate( &m_matrix, angle) ; +} + +// +// apply the transforms +// + +// applies that matrix to the point +void wxCairoMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const +{ + double lx = *x, ly = *y ; + cairo_matrix_transform_point( &m_matrix, &lx, &ly); + *x = lx; + *y = ly; +} + +// applies the matrix except for translations +void wxCairoMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const +{ + double lx = *dx, ly = *dy ; + cairo_matrix_transform_distance( &m_matrix, &lx, &ly); + *dx = lx; + *dy = ly; +} + +// returns the native representation +void * wxCairoMatrixData::GetNativeMatrix() const +{ + return (void*) &m_matrix; +} + +// ---------------------------------------------------------------------------- +// wxCairoBitmap implementation +// ---------------------------------------------------------------------------- + +int wxCairoBitmapData::InitBuffer(int width, int height, cairo_format_t format) +{ + 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 + stride = 4*width; + + m_width = width; + m_height = height; + m_buffer = new unsigned char[height*stride]; + + return stride; +} + +void wxCairoBitmapData::InitSurface(cairo_format_t format, int stride) +{ + 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); +} + +wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, cairo_surface_t* bitmap ) : + wxGraphicsBitmapData( renderer ) +{ + m_surface = bitmap; + m_pattern = cairo_pattern_create_for_surface(m_surface); +} + +wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp ) : wxGraphicsBitmapData( 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 +#if defined(__WXGTK__) && !defined(__WXGTK3__) + || bmp.GetMask() +#endif + ? CAIRO_FORMAT_ARGB32 + : CAIRO_FORMAT_RGB24; + + int stride = InitBuffer(bmp.GetWidth(), bmp.GetHeight(), bufferFormat); + + wxBitmap bmpSource = bmp; // we need a non-const instance + wxUint32* data = (wxUint32*)m_buffer; + + 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; yGetBitmap(); + bufferFormat = CAIRO_FORMAT_ARGB32; + data = (wxUint32*)m_buffer; + wxNativePixelData + pixData(bmpMask, wxPoint(0, 0), wxSize(m_width, m_height)); + wxCHECK_RET( pixData, wxT("Failed to gain raw access to mask data.")); + + wxNativePixelData::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(); + cairo_t* cr = static_cast(impl->GetCairoContext()); + if (cr) + Init(cairo_reference(cr)); +#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 __WXGTK3__ + cairo_t* cr = static_cast(dc.GetImpl()->GetCairoContext()); + if (cr) + Init(cairo_reference(cr)); +#elif defined __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__ + + HDC hdc = (HDC)dc.GetHDC(); + + HBITMAP bitmap = (HBITMAP)GetCurrentObject(hdc, OBJ_BITMAP); + + BITMAP info; + bool hasBitmap = false; + + // cairo_win32_surface_create creates a 24-bit bitmap, + // so if we have alpha, we need to create a 32-bit surface instead. + if (!GetObject(bitmap, sizeof(info), &info) || info.bmBitsPixel < 32) + m_mswSurface = cairo_win32_surface_create(hdc); + else { + hasBitmap = true; + m_mswSurface = cairo_image_surface_create_for_data((unsigned char*)info.bmBits, + CAIRO_FORMAT_ARGB32, + info.bmWidth, + info.bmHeight, + info.bmWidthBytes); + } + + Init( cairo_create(m_mswSurface) ); + // If we've created a image surface, we need to flip the Y axis so that + // all drawing will appear right side up. + if (hasBitmap) { + cairo_matrix_t matrix; + cairo_matrix_init(&matrix, 1.0, 0.0, 0.0, -1.0, 0.0, height); + cairo_set_matrix(m_context, &matrix); + } +#endif + +#ifdef __WXGTK3__ + cairo_t* cr = static_cast(dc.GetImpl()->GetCairoContext()); + if (cr) + Init(cairo_reference(cr)); +#elif defined __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, GdkWindow *window ) +: wxGraphicsContext(renderer) +{ + Init( gdk_cairo_create( window ) ); + +#ifdef __WXGTK3__ + m_width = gdk_window_get_width(window); + m_height = gdk_window_get_height(window); +#else + int width, height; + gdk_drawable_get_size(window, &width, &height); + m_width = width; + m_height = height; +#endif +} +#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) +#ifdef __WXMSW__ + , m_mswWindowHDC(GetHwndOf(window)) +#endif +{ + 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)m_mswWindowHDC); + 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 ) @@ -572,25 +1988,30 @@ void wxCairoContext::Translate( wxDouble dx , wxDouble dy ) void wxCairoContext::Scale( wxDouble xScale , wxDouble yScale ) { cairo_scale(m_context,xScale,yScale); - /* - PointF penWidth( m_pen->GetWidth(), 0); - Matrix matrix ; - if ( !m_penTransparent ) - { - m_context->GetTransform(&matrix); - matrix.TransformVectors(&penWidth); - } - m_context->ScaleTransform(xScale,yScale); - if ( !m_penTransparent ) - { - m_context->GetTransform(&matrix); - matrix.Invert(); - matrix.TransformVectors(&penWidth) ; - m_pen->SetWidth( sqrt( penWidth.X*penWidth.X + penWidth.Y*penWidth.Y)); - } - */ } +// concatenates this transform with the current transform of this context +void wxCairoContext::ConcatTransform( const wxGraphicsMatrix& matrix ) +{ + cairo_transform(m_context,(const cairo_matrix_t *) matrix.GetNativeMatrix()); +} + +// sets the transform of this context +void wxCairoContext::SetTransform( const wxGraphicsMatrix& matrix ) +{ + cairo_set_matrix(m_context,(const cairo_matrix_t*) matrix.GetNativeMatrix()); +} + +// gets the matrix of this context +wxGraphicsMatrix wxCairoContext::GetTransform() const +{ + wxGraphicsMatrix matrix = CreateMatrix(); + cairo_get_matrix(m_context,(cairo_matrix_t*) matrix.GetNativeMatrix()); + return matrix; +} + + + void wxCairoContext::PushState() { cairo_save(m_context); @@ -601,312 +2022,655 @@ void wxCairoContext::PopState() cairo_restore(m_context); } -void wxCairoContext::SetTextColor( const wxColour &col ) +void wxCairoContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) { - m_textColour = col; + wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp); + DrawBitmap(bitmap, x, y, w, h); + } -void wxCairoContext::SetPen( const wxPen &pen ) +void wxCairoContext::DrawBitmap(const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) { - m_pen = pen ; - m_penTransparent = pen.GetStyle() == wxTRANSPARENT; - if ( m_penTransparent ) - return; + PushState(); - /* - - case wxSTIPPLE : - { - wxBitmap* bmp = pen.GetStipple(); - if ( bmp && bmp->Ok() ) - { - wxDELETE( m_penImage ); - wxDELETE( m_penBrush ); - m_penImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE()); - m_penBrush = new TextureBrush(m_penImage); - m_pen->SetBrush( m_penBrush ); - } - - } - break; - default : - if ( pen.GetStyle() >= wxFIRST_HATCH && pen.GetStyle() <= wxLAST_HATCH ) - { - wxDELETE( m_penBrush ); - HatchStyle style = HatchStyleHorizontal; - switch( pen.GetStyle() ) - { - case wxBDIAGONAL_HATCH : - style = HatchStyleBackwardDiagonal; - break ; - case wxCROSSDIAG_HATCH : - style = HatchStyleDiagonalCross; - break ; - case wxFDIAGONAL_HATCH : - style = HatchStyleForwardDiagonal; - break ; - case wxCROSS_HATCH : - style = HatchStyleCross; - break ; - case wxHORIZONTAL_HATCH : - style = HatchStyleHorizontal; - break ; - case wxVERTICAL_HATCH : - style = HatchStyleVertical; - break ; - - } - m_penBrush = new HatchBrush(style,Color( pen.GetColour().Alpha() , pen.GetColour().Red() , - pen.GetColour().Green() , pen.GetColour().Blue() ), Color.Transparent ); - m_pen->SetBrush( m_penBrush ); - } - break; - } - if ( dashStyle != DashStyleSolid ) - m_pen->SetDashStyle(dashStyle); - */ + // 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 ) +{ + // 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::SetBrush( const wxBrush &brush ) + +void wxCairoContext::DoDrawText(const wxString& str, wxDouble x, wxDouble y) { - m_brush = brush; - if (m_brushPattern) + 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) ) { - cairo_pattern_destroy(m_brushPattern); - m_brushPattern = NULL; +#ifdef __WXGTK__ + PangoLayout *layout = pango_cairo_create_layout (m_context); + const wxFont& font = static_cast(m_font.GetRefData())->GetFont(); + pango_layout_set_font_description(layout, font.GetNativeFontInfo()->description); + pango_layout_set_text(layout, data, data.length()); + font.GTKSetPangoAttrs(layout); + + 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 } - m_brushTransparent = brush.GetStyle() == wxTRANSPARENT; - if ( m_brushTransparent ) + // 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 +{ + 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; - /* - wxDELETE(m_brush); - - if ( brush.GetStyle() == wxSOLID) + + if ( ((wxCairoFontData*)m_font.GetRefData())->Apply((wxCairoContext*)this) ) + { +#ifdef __WXGTK__ + int w, h; + + PangoLayout *layout = pango_cairo_create_layout (m_context); + const wxFont& font = static_cast(m_font.GetRefData())->GetFont(); + pango_layout_set_font_description(layout, font.GetNativeFontInfo()->description); + const wxCharBuffer data = str.utf8_str(); + if ( !data ) { - m_brush = new SolidBrush( Color( brush.GetColour().Alpha() , brush.GetColour().Red() , - brush.GetColour().Green() , brush.GetColour().Blue() ) ); + return; } - else if ( brush.IsHatch() ) + pango_layout_set_text(layout, data, data.length()); + pango_layout_get_pixel_size (layout, &w, &h); + if ( width ) + *width = w; + if ( height ) + *height = h; + if (descent) { - HatchStyle style = HatchStyleHorizontal; - switch( brush.GetStyle() ) - { - case wxBDIAGONAL_HATCH : - style = HatchStyleBackwardDiagonal; - break ; - case wxCROSSDIAG_HATCH : - style = HatchStyleDiagonalCross; - break ; - case wxFDIAGONAL_HATCH : - style = HatchStyleForwardDiagonal; - break ; - case wxCROSS_HATCH : - style = HatchStyleCross; - break ; - case wxHORIZONTAL_HATCH : - style = HatchStyleHorizontal; - break ; - case wxVERTICAL_HATCH : - style = HatchStyleVertical; - break ; - - } - m_brush = new HatchBrush(style,Color( brush.GetColour().Alpha() , brush.GetColour().Red() , - brush.GetColour().Green() , brush.GetColour().Blue() ), Color.Transparent ); + 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); } - else + 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 ) ) { - wxBitmap* bmp = brush.GetStipple(); - if ( bmp && bmp->Ok() ) - { - wxDELETE( m_brushImage ); - m_brushImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE()); - m_brush = new TextureBrush(m_brushImage); - } + // 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::SetLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, const wxColour&c1, const wxColour&c2) +void wxCairoContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const { - if ( m_brushPattern ) + widths.Empty(); + wxCHECK_RET( !m_font.IsNull(), wxT("wxCairoContext::GetPartialTextExtents - no valid font set") ); +#ifdef __WXGTK__ + const wxCharBuffer data = text.utf8_str(); + int w = 0; + if (data.length()) { - cairo_pattern_destroy(m_brushPattern); - m_brushPattern=NULL; + PangoLayout* layout = pango_cairo_create_layout(m_context); + const wxFont& font = static_cast(m_font.GetRefData())->GetFont(); + pango_layout_set_font_description(layout, font.GetNativeFontInfo()->description); + pango_layout_set_text(layout, data, data.length()); + PangoLayoutIter* iter = pango_layout_get_iter(layout); + PangoRectangle rect; + do { + pango_layout_iter_get_cluster_extents(iter, NULL, &rect); + w += rect.width; + widths.Add(PANGO_PIXELS(w)); + } while (pango_layout_iter_next_cluster(iter)); + pango_layout_iter_free(iter); + g_object_unref(layout); } - - m_brushTransparent = false; - 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")); + size_t i = widths.GetCount(); + const size_t len = text.length(); + while (i++ < len) + widths.Add(PANGO_PIXELS(w)); +#else + // TODO +#endif +} + +void * wxCairoContext::GetNativeContext() +{ + return m_context; } -void wxCairoContext::SetRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius, - const wxColour &oColor, const wxColour &cColor) +bool wxCairoContext::SetAntialiasMode(wxAntialiasMode antialias) { - if ( m_brushPattern ) + if (m_antialias == antialias) + return true; + + m_antialias = antialias; + + cairo_antialias_t antialiasMode; + switch (antialias) { - cairo_pattern_destroy(m_brushPattern); - m_brushPattern=NULL; + case wxANTIALIAS_DEFAULT: + antialiasMode = CAIRO_ANTIALIAS_DEFAULT; + break; + case wxANTIALIAS_NONE: + antialiasMode = CAIRO_ANTIALIAS_NONE; + break; + default: + return false; } - - m_brushTransparent = false; - 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")); - } + cairo_set_antialias(m_context, antialiasMode); + return true; +} -void wxCairoContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) +bool wxCairoContext::SetInterpolationQuality(wxInterpolationQuality WXUNUSED(interpolation)) { - /* - 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 ; - */ + // placeholder + return false; } -void wxCairoContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) +bool wxCairoContext::SetCompositionMode(wxCompositionMode op) { - /* - Bitmap* image = Bitmap::FromHICON((HICON)icon.GetHICON()); - m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ; - delete image ; - */ + 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 +//----------------------------------------------------------------------------- + +class WXDLLIMPEXP_CORE wxCairoRenderer : public wxGraphicsRenderer +{ +public : + wxCairoRenderer() {} + + virtual ~wxCairoRenderer() {} + + // 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(); + + // Matrix + + 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); + + + virtual wxGraphicsPen CreatePen(const wxPen& pen) ; + + virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ; + + virtual wxGraphicsBrush + CreateLinearGradientBrush(wxDouble x1, wxDouble y1, + wxDouble x2, wxDouble y2, + const wxGraphicsGradientStops& stops); + + 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 ); + + DECLARE_DYNAMIC_CLASS_NO_COPY(wxCairoRenderer) +} ; + +//----------------------------------------------------------------------------- +// wxCairoRenderer implementation +//----------------------------------------------------------------------------- + +IMPLEMENT_DYNAMIC_CLASS(wxCairoRenderer,wxGraphicsRenderer) + +static wxCairoRenderer gs_cairoGraphicsRenderer; + +#ifdef __WXGTK__ + #define ENSURE_LOADED_OR_RETURN(returnOnFail) +#else + #define ENSURE_LOADED_OR_RETURN(returnOnFail) \ + if (!wxCairoInit()) \ + return returnOnFail +#endif + +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); +} -void wxCairoContext::DrawText( const wxString &str, wxDouble x, wxDouble y ) +wxGraphicsContext * wxCairoRenderer::CreateContext( const wxPrinterDC& dc) { - if ( str.IsEmpty()) - return ; - cairo_move_to(m_context,x,y); - const wxWX2MBbuf buf(str.mb_str(wxConvUTF8)); + ENSURE_LOADED_OR_RETURN(NULL); + return new wxCairoContext(this, dc); +} - cairo_set_source_rgba(m_context,m_textColour.Red()/255.0, - m_textColour.Green()/255.0, m_textColour.Blue()/255.0,m_textColour.Alpha()/255.0); - cairo_show_text(m_context,buf); +#ifdef __WXMSW__ +#if wxUSE_ENH_METAFILE +wxGraphicsContext * wxCairoRenderer::CreateContext( const wxEnhMetaFileDC& WXUNUSED(dc) ) +{ + return NULL; +} +#endif +#endif - // TODO m_backgroundMode == wxSOLID +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 } -void wxCairoContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height, - wxDouble *descent, wxDouble *externalLeading ) const + +wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeWindow( void * window ) { - /* - wxWCharBuffer s = str.wc_str( *wxConvUI ); - FontFamily ffamily ; - - m_font->GetFamily(&ffamily) ; - - REAL factorY = m_context->GetDpiY() / 72.0 ; - - REAL rDescent = ffamily.GetCellDescent(FontStyleRegular) * - m_font->GetSize() / ffamily.GetEmHeight(FontStyleRegular); - REAL rAscent = ffamily.GetCellAscent(FontStyleRegular) * - m_font->GetSize() / ffamily.GetEmHeight(FontStyleRegular); - REAL rHeight = ffamily.GetLineSpacing(FontStyleRegular) * - m_font->GetSize() / ffamily.GetEmHeight(FontStyleRegular); - - if ( height ) - *height = rHeight * factorY + 0.5 ; - if ( descent ) - *descent = rDescent * factorY + 0.5 ; - if ( externalLeading ) - *externalLeading = (rHeight - rAscent - rDescent) * factorY + 0.5 ; - // measuring empty strings is not guaranteed, so do it by hand - if ( str.IsEmpty()) - { - if ( width ) - *width = 0 ; - } - else - { - // MeasureString does return a rectangle that is way too large, so it is - // not usable here - RectF layoutRect(0,0, 100000.0f, 100000.0f); - StringFormat strFormat; - CharacterRange strRange(0,wcslen(s)); - strFormat.SetMeasurableCharacterRanges(1,&strRange); - Region region ; - m_context->MeasureCharacterRanges(s, -1 , m_font,layoutRect, &strFormat,1,®ion) ; - RectF bbox ; - region.GetBounds(&bbox,m_context); - if ( width ) - *width = bbox.GetRight()-bbox.GetLeft()+0.5; - } - */ +#ifdef __WXGTK__ + return new wxCairoContext(this, static_cast(window)); +#else + wxUnusedVar(window); + return NULL; +#endif } -void wxCairoContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const +#if wxUSE_IMAGE +wxGraphicsContext * wxCairoRenderer::CreateContextFromImage(wxImage& image) { - widths.Empty(); - widths.Add(0, text.length()); + ENSURE_LOADED_OR_RETURN(NULL); + return new wxCairoImageContext(this, image); +} +#endif // wxUSE_IMAGE - if (text.empty()) - return; - /* - wxWCharBuffer ws = text.wc_str( *wxConvUI ); - size_t len = wcslen( ws ) ; - wxASSERT_MSG(text.length() == len , wxT("GetPartialTextExtents not yet implemented for multichar situations")); - - RectF layoutRect(0,0, 100000.0f, 100000.0f); - StringFormat strFormat; - - CharacterRange* ranges = new CharacterRange[len] ; - Region* regions = new Region[len]; - for( int i = 0 ; i < len ; ++i) - { - ranges[i].First = i ; - ranges[i].Length = 1 ; - } - strFormat.SetMeasurableCharacterRanges(len,ranges); - m_context->MeasureCharacterRanges(ws, -1 , m_font,layoutRect, &strFormat,1,regions) ; - - RectF bbox ; - for ( int i = 0 ; i < len ; ++i) - { - regions[i].GetBounds(&bbox,m_context); - widths[i] = bbox.GetRight()-bbox.GetLeft(); - } - */ +wxGraphicsContext * wxCairoRenderer::CreateMeasuringContext() +{ +#ifdef __WXGTK__ + return CreateContextFromNativeWindow(gdk_get_default_root_window()); +#else + return NULL; + // TODO +#endif +} + +wxGraphicsContext * wxCairoRenderer::CreateContext( wxWindow* window ) +{ + ENSURE_LOADED_OR_RETURN(NULL); + return new wxCairoContext(this, window ); } -void wxCairoContext::SetFont( const wxFont &font ) +// Path + +wxGraphicsPath wxCairoRenderer::CreatePath() { - cairo_select_font_face(m_context,font.GetFaceName().mb_str(wxConvUTF8), - font.GetStyle() == wxFONTSTYLE_ITALIC ? CAIRO_FONT_SLANT_ITALIC:CAIRO_FONT_SLANT_NORMAL, - font.GetWeight() == wxFONTWEIGHT_BOLD ? CAIRO_FONT_WEIGHT_BOLD:CAIRO_FONT_WEIGHT_NORMAL); + wxGraphicsPath path; + ENSURE_LOADED_OR_RETURN(path); + path.SetRefData( new wxCairoPathData(this) ); + return path; +} + - cairo_set_font_size(m_context,font.GetPointSize()); - // TODO UNDERLINE - // TODO FIX SIZE +// Matrix + +wxGraphicsMatrix wxCairoRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d, + wxDouble tx, wxDouble ty) + +{ + wxGraphicsMatrix m; + ENSURE_LOADED_OR_RETURN(m); + wxCairoMatrixData* data = new wxCairoMatrixData( this ); + data->Set( a,b,c,d,tx,ty ) ; + m.SetRefData(data); + return m; } -void * wxCairoContext::GetNativeContext() +wxGraphicsPen wxCairoRenderer::CreatePen(const wxPen& pen) { - return m_context; + wxGraphicsPen p; + ENSURE_LOADED_OR_RETURN(p); + if (pen.IsOk() && pen.GetStyle() != wxPENSTYLE_TRANSPARENT) + { + p.SetRefData(new wxCairoPenData( this, pen )); + } + return p; +} + +wxGraphicsBrush wxCairoRenderer::CreateBrush(const wxBrush& brush ) +{ + wxGraphicsBrush p; + ENSURE_LOADED_OR_RETURN(p); + if (brush.IsOk() && brush.GetStyle() != wxBRUSHSTYLE_TRANSPARENT) + { + p.SetRefData(new wxCairoBrushData( this, brush )); + } + return p; +} + +wxGraphicsBrush +wxCairoRenderer::CreateLinearGradientBrush(wxDouble x1, wxDouble y1, + wxDouble x2, wxDouble y2, + const wxGraphicsGradientStops& stops) +{ + wxGraphicsBrush p; + ENSURE_LOADED_OR_RETURN(p); + wxCairoBrushData* d = new wxCairoBrushData( this ); + d->CreateLinearGradientBrush(x1, y1, x2, y2, stops); + p.SetRefData(d); + return p; +} + +wxGraphicsBrush +wxCairoRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo, + wxDouble xc, wxDouble yc, wxDouble r, + const wxGraphicsGradientStops& stops) +{ + wxGraphicsBrush p; + ENSURE_LOADED_OR_RETURN(p); + wxCairoBrushData* d = new wxCairoBrushData( this ); + d->CreateRadialGradientBrush(xo, yo, xc, yc, r, stops); + p.SetRefData(d); + return p; +} + +wxGraphicsFont wxCairoRenderer::CreateFont( const wxFont &font , const wxColour &col ) +{ + wxGraphicsFont p; + ENSURE_LOADED_OR_RETURN(p); + if ( font.IsOk() ) + { + p.SetRefData(new wxCairoFontData( this , font, col )); + } + return p; +} + +wxGraphicsFont +wxCairoRenderer::CreateFont(double sizeInPixels, + const wxString& facename, + int flags, + const wxColour& col) +{ + wxGraphicsFont font; + ENSURE_LOADED_OR_RETURN(font); + font.SetRefData(new wxCairoFontData(this, sizeInPixels, facename, flags, col)); + return font; +} + +wxGraphicsBitmap wxCairoRenderer::CreateBitmap( const wxBitmap& bmp ) +{ + wxGraphicsBitmap p; + ENSURE_LOADED_OR_RETURN(p); + if ( bmp.IsOk() ) + { + p.SetRefData(new wxCairoBitmapData( this , bmp )); + } + return p; +} + +#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) +{ + wxImage image; + ENSURE_LOADED_OR_RETURN(image); + + const wxCairoBitmapData* const + data = static_cast(bmp.GetGraphicsData()); + if (data) + image = data->ConvertToImage(); + + return image; +} + +#endif // wxUSE_IMAGE + + +wxGraphicsBitmap wxCairoRenderer::CreateBitmapFromNativeBitmap( void* bitmap ) +{ + wxGraphicsBitmap p; + ENSURE_LOADED_OR_RETURN(p); + if ( bitmap != NULL ) + { + p.SetRefData(new wxCairoBitmapData( this , (cairo_surface_t*) bitmap )); + } + return p; +} + +wxGraphicsBitmap +wxCairoRenderer::CreateSubBitmap(const wxGraphicsBitmap& WXUNUSED(bitmap), + wxDouble WXUNUSED(x), + wxDouble WXUNUSED(y), + wxDouble WXUNUSED(w), + wxDouble WXUNUSED(h)) +{ + wxGraphicsBitmap p; + wxFAIL_MSG("wxCairoRenderer::CreateSubBitmap is not implemented."); + return p; } -wxGraphicsContext* wxGraphicsContext::Create( const wxWindowDC& dc ) +wxGraphicsRenderer* wxGraphicsRenderer::GetCairoRenderer() { - return new wxCairoContext(dc); + return &gs_cairoGraphicsRenderer; } -wxGraphicsContext* wxGraphicsContext::Create( wxWindow * window ) +#else // !wxUSE_CAIRO + +wxGraphicsRenderer* wxGraphicsRenderer::GetCairoRenderer() { - return NULL; // TODO + return NULL; } -wxGraphicsContext* wxGraphicsContext::CreateFromNative( void * context ) +#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 NULL; // TODO + return GetCairoRenderer(); } +#endif // !(__WXMSW__ || __WXOSX__) -#endif // wxUSE_GRAPHICS_CONTEXT +#endif // wxUSE_GRAPHICS_CONTEXT