1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/generic/graphicc.cpp
3 // Purpose: cairo device context class
4 // Author: Stefan Csomor
8 // Copyright: (c) 2006 Stefan Csomor
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
12 #include "wx/wxprec.h"
18 #if wxUSE_GRAPHICS_CONTEXT
20 #include "wx/graphics.h"
24 // keep cairo.h from defining dllimport as we're defining the symbols inside
25 // the wx dll in order to load them dynamically.
31 #include "wx/bitmap.h"
33 #include "wx/dcclient.h"
34 #include "wx/dcmemory.h"
35 #include "wx/dcprint.h"
37 #include "wx/window.h"
41 #include "wx/private/graphics.h"
42 #include "wx/rawbmp.h"
43 #include "wx/vector.h"
47 //-----------------------------------------------------------------------------
48 // device context implementation
50 // more and more of the dc functionality should be implemented by calling
51 // the appropricate wxCairoContext, but we will have to do that step by step
52 // also coordinate conversions should be moved to native matrix ops
53 //-----------------------------------------------------------------------------
55 // we always stock two context states, one at entry, to be able to preserve the
56 // state we were called with, the other one after changing to HI Graphics orientation
57 // (this one is used for getting back clippings etc)
59 //-----------------------------------------------------------------------------
60 // wxGraphicsPath implementation
61 //-----------------------------------------------------------------------------
63 // TODO remove this dependency (gdiplus needs the macros)
66 #define max(a,b) (((a) > (b)) ? (a) : (b))
70 #define min(a,b) (((a) < (b)) ? (a) : (b))
75 #include <cairo-win32.h>
80 #include "wx/fontutil.h"
81 #include "wx/gtk/dc.h"
85 #include <cairo-win32.h>
89 #include "wx/osx/private.h"
90 #include <cairo-quartz.h>
91 #include <cairo-atsui.h>
94 class WXDLLIMPEXP_CORE wxCairoPathData
: public wxGraphicsPathData
97 wxCairoPathData(wxGraphicsRenderer
* renderer
, cairo_t
* path
= NULL
);
100 virtual wxGraphicsObjectRefData
*Clone() const;
103 // These are the path primitives from which everything else can be constructed
106 // begins a new subpath at (x,y)
107 virtual void MoveToPoint( wxDouble x
, wxDouble y
);
109 // adds a straight line from the current point to (x,y)
110 virtual void AddLineToPoint( wxDouble x
, wxDouble y
);
112 // adds a cubic Bezier curve from the current point, using two control points and an end point
113 virtual void AddCurveToPoint( wxDouble cx1
, wxDouble cy1
, wxDouble cx2
, wxDouble cy2
, wxDouble x
, wxDouble y
);
116 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
117 virtual void AddArc( wxDouble x
, wxDouble y
, wxDouble r
, wxDouble startAngle
, wxDouble endAngle
, bool clockwise
) ;
119 // gets the last point of the current path, (0,0) if not yet set
120 virtual void GetCurrentPoint( wxDouble
* x
, wxDouble
* y
) const;
123 virtual void AddPath( const wxGraphicsPathData
* path
);
125 // closes the current sub-path
126 virtual void CloseSubpath();
129 // These are convenience functions which - if not available natively will be assembled
130 // using the primitives from above
135 // appends a rectangle as a new closed subpath
136 virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) ;
137 // appends an ellipsis as a new closed subpath fitting the passed rectangle
138 virtual void AddEllipsis( wxDouble x, wxDouble y, wxDouble w , wxDouble h ) ;
140 // draws a an arc to two tangents connecting (current) to (x1,y1) and (x1,y1) to (x2,y2), also a straight line from (current) to (x1,y1)
141 virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r ) ;
144 // returns the native path
145 virtual void * GetNativePath() const ;
147 // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
148 virtual void UnGetNativePath(void *p
) const;
150 // transforms each point of this path by the matrix
151 virtual void Transform( const wxGraphicsMatrixData
* matrix
) ;
153 // gets the bounding box enclosing all points (possibly including control points)
154 virtual void GetBox(wxDouble
*x
, wxDouble
*y
, wxDouble
*w
, wxDouble
*h
) const;
156 virtual bool Contains( wxDouble x
, wxDouble y
, wxPolygonFillMode fillStyle
= wxWINDING_RULE
) const;
159 cairo_t
* m_pathContext
;
162 class WXDLLIMPEXP_CORE wxCairoMatrixData
: public wxGraphicsMatrixData
165 wxCairoMatrixData(wxGraphicsRenderer
* renderer
, const cairo_matrix_t
* matrix
= NULL
) ;
166 virtual ~wxCairoMatrixData() ;
168 virtual wxGraphicsObjectRefData
*Clone() const ;
170 // concatenates the matrix
171 virtual void Concat( const wxGraphicsMatrixData
*t
);
173 // sets the matrix to the respective values
174 virtual void Set(wxDouble a
=1.0, wxDouble b
=0.0, wxDouble c
=0.0, wxDouble d
=1.0,
175 wxDouble tx
=0.0, wxDouble ty
=0.0);
177 // gets the component valuess of the matrix
178 virtual void Get(wxDouble
* a
=NULL
, wxDouble
* b
=NULL
, wxDouble
* c
=NULL
,
179 wxDouble
* d
=NULL
, wxDouble
* tx
=NULL
, wxDouble
* ty
=NULL
) const;
181 // makes this the inverse matrix
182 virtual void Invert();
184 // returns true if the elements of the transformation matrix are equal ?
185 virtual bool IsEqual( const wxGraphicsMatrixData
* t
) const ;
187 // return true if this is the identity matrix
188 virtual bool IsIdentity() const;
194 // add the translation to this matrix
195 virtual void Translate( wxDouble dx
, wxDouble dy
);
197 // add the scale to this matrix
198 virtual void Scale( wxDouble xScale
, wxDouble yScale
);
200 // add the rotation to this matrix (radians)
201 virtual void Rotate( wxDouble angle
);
204 // apply the transforms
207 // applies that matrix to the point
208 virtual void TransformPoint( wxDouble
*x
, wxDouble
*y
) const;
210 // applies the matrix except for translations
211 virtual void TransformDistance( wxDouble
*dx
, wxDouble
*dy
) const;
213 // returns the native representation
214 virtual void * GetNativeMatrix() const;
216 cairo_matrix_t m_matrix
;
219 class WXDLLIMPEXP_CORE wxCairoPenData
: public wxGraphicsObjectRefData
222 wxCairoPenData( wxGraphicsRenderer
* renderer
, const wxPen
&pen
);
227 virtual void Apply( wxGraphicsContext
* context
);
228 virtual wxDouble
GetWidth() { return m_width
; }
238 cairo_line_cap_t m_cap
;
239 cairo_line_join_t m_join
;
242 const double *m_lengths
;
243 double *m_userLengths
;
247 wxDECLARE_NO_COPY_CLASS(wxCairoPenData
);
250 class WXDLLIMPEXP_CORE wxCairoBrushData
: public wxGraphicsObjectRefData
253 wxCairoBrushData( wxGraphicsRenderer
* renderer
);
254 wxCairoBrushData( wxGraphicsRenderer
* renderer
, const wxBrush
&brush
);
255 ~wxCairoBrushData ();
257 virtual void Apply( wxGraphicsContext
* context
);
259 void CreateLinearGradientBrush(wxDouble x1
, wxDouble y1
,
260 wxDouble x2
, wxDouble y2
,
261 const wxGraphicsGradientStops
& stops
);
262 void CreateRadialGradientBrush(wxDouble xo
, wxDouble yo
,
263 wxDouble xc
, wxDouble yc
, wxDouble radius
,
264 const wxGraphicsGradientStops
& stops
);
269 // common part of Create{Linear,Radial}GradientBrush()
270 void AddGradientStops(const wxGraphicsGradientStops
& stops
);
278 cairo_pattern_t
* m_brushPattern
;
281 class wxCairoFontData
: public wxGraphicsObjectRefData
284 wxCairoFontData( wxGraphicsRenderer
* renderer
, const wxFont
&font
, const wxColour
& col
);
285 wxCairoFontData(wxGraphicsRenderer
* renderer
,
287 const wxString
& facename
,
289 const wxColour
& col
);
292 virtual bool Apply( wxGraphicsContext
* context
);
294 const PangoFontDescription
* GetFont() const { return m_font
; }
295 bool GetUnderlined() const { return m_underlined
; }
296 bool GetStrikethrough() const { return m_strikethrough
; }
299 void InitColour(const wxColour
& col
);
300 void InitFontComponents(const wxString
& facename
,
301 cairo_font_slant_t slant
,
302 cairo_font_weight_t weight
);
310 cairo_font_face_t
*m_font
;
311 #elif defined(__WXGTK__)
312 PangoFontDescription
* m_font
;
314 bool m_strikethrough
;
317 // These members are used when the font is created from its face name and
318 // flags (and not from wxFont) and also even when creating it from wxFont
319 // on the platforms not covered above.
321 // Notice that we can't use cairo_font_face_t instead of storing those,
322 // even though it would be simpler and need less #ifdefs, because
323 // cairo_toy_font_face_create() that we'd need to create it is only
324 // available in Cairo 1.8 and we require just 1.2 currently. If we do drop
325 // support for < 1.8 versions in the future it would be definitely better
326 // to use cairo_toy_font_face_create() instead.
327 wxCharBuffer m_fontName
;
328 cairo_font_slant_t m_slant
;
329 cairo_font_weight_t m_weight
;
332 class wxCairoBitmapData
: public wxGraphicsObjectRefData
335 wxCairoBitmapData( wxGraphicsRenderer
* renderer
, const wxBitmap
& bmp
);
337 wxCairoBitmapData(wxGraphicsRenderer
* renderer
, const wxImage
& image
);
338 #endif // wxUSE_IMAGE
339 wxCairoBitmapData( wxGraphicsRenderer
* renderer
, cairo_surface_t
* bitmap
);
340 ~wxCairoBitmapData();
342 virtual cairo_surface_t
* GetCairoSurface() { return m_surface
; }
343 virtual cairo_pattern_t
* GetCairoPattern() { return m_pattern
; }
344 virtual wxSize
GetSize() { return wxSize(m_width
, m_height
); }
347 wxImage
ConvertToImage() const;
348 #endif // wxUSE_IMAGE
351 // Allocate m_buffer for the bitmap of the given size in the given format.
353 // Returns the stride used for the buffer.
354 int InitBuffer(int width
, int height
, cairo_format_t format
);
356 // Really create the surface using the buffer (which was supposed to be
357 // filled since InitBuffer() call).
358 void InitSurface(cairo_format_t format
, int stride
);
361 cairo_surface_t
* m_surface
;
362 cairo_pattern_t
* m_pattern
;
365 unsigned char* m_buffer
;
368 class WXDLLIMPEXP_CORE wxCairoContext
: public wxGraphicsContext
371 wxCairoContext( wxGraphicsRenderer
* renderer
, const wxWindowDC
& dc
);
372 wxCairoContext( wxGraphicsRenderer
* renderer
, const wxMemoryDC
& dc
);
373 wxCairoContext( wxGraphicsRenderer
* renderer
, const wxPrinterDC
& dc
);
375 wxCairoContext( wxGraphicsRenderer
* renderer
, GdkDrawable
*drawable
);
378 wxCairoContext( wxGraphicsRenderer
* renderer
, HDC context
);
380 wxCairoContext( wxGraphicsRenderer
* renderer
, cairo_t
*context
);
381 wxCairoContext( wxGraphicsRenderer
* renderer
, wxWindow
*window
);
383 // If this ctor is used, Init() must be called by the derived class later.
384 wxCairoContext( wxGraphicsRenderer
* renderer
);
386 virtual ~wxCairoContext();
388 virtual bool ShouldOffset() const
390 if ( !m_enableOffset
)
394 if ( !m_pen
.IsNull() )
396 penwidth
= (int)((wxCairoPenData
*)m_pen
.GetRefData())->GetWidth();
400 return ( penwidth
% 2 ) == 1;
403 virtual void Clip( const wxRegion
®ion
);
405 cairo_surface_t
* m_mswSurface
;
408 // clips drawings to the rect
409 virtual void Clip( wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
);
411 // resets the clipping to original extent
412 virtual void ResetClip();
414 virtual void * GetNativeContext();
416 virtual bool SetAntialiasMode(wxAntialiasMode antialias
);
418 virtual bool SetInterpolationQuality(wxInterpolationQuality interpolation
);
420 virtual bool SetCompositionMode(wxCompositionMode op
);
422 virtual void BeginLayer(wxDouble opacity
);
424 virtual void EndLayer();
426 virtual void StrokePath( const wxGraphicsPath
& p
);
427 virtual void FillPath( const wxGraphicsPath
& p
, wxPolygonFillMode fillStyle
= wxWINDING_RULE
);
429 virtual void Translate( wxDouble dx
, wxDouble dy
);
430 virtual void Scale( wxDouble xScale
, wxDouble yScale
);
431 virtual void Rotate( wxDouble angle
);
433 // concatenates this transform with the current transform of this context
434 virtual void ConcatTransform( const wxGraphicsMatrix
& matrix
);
436 // sets the transform of this context
437 virtual void SetTransform( const wxGraphicsMatrix
& matrix
);
439 // gets the matrix of this context
440 virtual wxGraphicsMatrix
GetTransform() const;
442 virtual void DrawBitmap( const wxGraphicsBitmap
&bmp
, wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
);
443 virtual void DrawBitmap( const wxBitmap
&bmp
, wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
);
444 virtual void DrawIcon( const wxIcon
&icon
, wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
);
445 virtual void PushState();
446 virtual void PopState();
448 virtual void GetTextExtent( const wxString
&str
, wxDouble
*width
, wxDouble
*height
,
449 wxDouble
*descent
, wxDouble
*externalLeading
) const;
450 virtual void GetPartialTextExtents(const wxString
& text
, wxArrayDouble
& widths
) const;
453 virtual void DoDrawText( const wxString
&str
, wxDouble x
, wxDouble y
);
455 void Init(cairo_t
*context
);
460 wxVector
<float> m_layerOpacities
;
462 wxDECLARE_NO_COPY_CLASS(wxCairoContext
);
466 // ----------------------------------------------------------------------------
467 // wxCairoImageContext: context associated with a wxImage.
468 // ----------------------------------------------------------------------------
470 class wxCairoImageContext
: public wxCairoContext
473 wxCairoImageContext(wxGraphicsRenderer
* renderer
, wxImage
& image
) :
474 wxCairoContext(renderer
),
476 m_data(renderer
, image
)
478 Init(cairo_create(m_data
.GetCairoSurface()));
481 virtual ~wxCairoImageContext()
483 m_image
= m_data
.ConvertToImage();
488 wxCairoBitmapData m_data
;
490 wxDECLARE_NO_COPY_CLASS(wxCairoImageContext
);
492 #endif // wxUSE_IMAGE
494 //-----------------------------------------------------------------------------
495 // wxCairoPenData implementation
496 //-----------------------------------------------------------------------------
498 wxCairoPenData::~wxCairoPenData()
500 delete[] m_userLengths
;
503 void wxCairoPenData::Init()
506 m_userLengths
= NULL
;
511 wxCairoPenData::wxCairoPenData( wxGraphicsRenderer
* renderer
, const wxPen
&pen
)
512 : wxGraphicsObjectRefData(renderer
)
516 m_width
= m_pen
.GetWidth();
520 m_red
= m_pen
.GetColour().Red()/255.0;
521 m_green
= m_pen
.GetColour().Green()/255.0;
522 m_blue
= m_pen
.GetColour().Blue()/255.0;
523 m_alpha
= m_pen
.GetColour().Alpha()/255.0;
525 switch ( m_pen
.GetCap() )
528 m_cap
= CAIRO_LINE_CAP_ROUND
;
531 case wxCAP_PROJECTING
:
532 m_cap
= CAIRO_LINE_CAP_SQUARE
;
536 m_cap
= CAIRO_LINE_CAP_BUTT
;
540 m_cap
= CAIRO_LINE_CAP_BUTT
;
544 switch ( m_pen
.GetJoin() )
547 m_join
= CAIRO_LINE_JOIN_BEVEL
;
551 m_join
= CAIRO_LINE_JOIN_MITER
;
555 m_join
= CAIRO_LINE_JOIN_ROUND
;
559 m_join
= CAIRO_LINE_JOIN_MITER
;
563 const double dashUnit
= m_width
< 1.0 ? 1.0 : m_width
;
564 const double dotted
[] =
566 dashUnit
, dashUnit
+ 2.0
568 static const double short_dashed
[] =
572 static const double dashed
[] =
576 static const double dotted_dashed
[] =
578 9.0 , 6.0 , 3.0 , 3.0
581 switch ( m_pen
.GetStyle() )
583 case wxPENSTYLE_SOLID
:
586 case wxPENSTYLE_DOT
:
587 m_count
= WXSIZEOF(dotted
);
588 m_userLengths
= new double[ m_count
] ;
589 memcpy( m_userLengths
, dotted
, sizeof(dotted
) );
590 m_lengths
= m_userLengths
;
593 case wxPENSTYLE_LONG_DASH
:
595 m_count
= WXSIZEOF(dashed
);
598 case wxPENSTYLE_SHORT_DASH
:
599 m_lengths
= short_dashed
;
600 m_count
= WXSIZEOF(short_dashed
);
603 case wxPENSTYLE_DOT_DASH
:
604 m_lengths
= dotted_dashed
;
605 m_count
= WXSIZEOF(dotted_dashed
);
608 case wxPENSTYLE_USER_DASH
:
611 m_count
= m_pen
.GetDashes( &wxdashes
) ;
612 if ((wxdashes
!= NULL
) && (m_count
> 0))
614 m_userLengths
= new double[m_count
] ;
615 for ( int i
= 0 ; i
< m_count
; ++i
)
617 m_userLengths
[i
] = wxdashes
[i
] * dashUnit
;
619 if ( i
% 2 == 1 && m_userLengths
[i
] < dashUnit
+ 2.0 )
620 m_userLengths
[i
] = dashUnit
+ 2.0 ;
621 else if ( i
% 2 == 0 && m_userLengths
[i
] < dashUnit
)
622 m_userLengths
[i
] = dashUnit
;
625 m_lengths
= m_userLengths
;
628 case wxPENSTYLE_STIPPLE
:
631 wxBitmap* bmp = pen.GetStipple();
632 if ( bmp && bmp->IsOk() )
634 wxDELETE( m_penImage );
635 wxDELETE( m_penBrush );
636 m_penImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE());
637 m_penBrush = new TextureBrush(m_penImage);
638 m_pen->SetBrush( m_penBrush );
644 if ( m_pen
.GetStyle() >= wxPENSTYLE_FIRST_HATCH
645 && m_pen
.GetStyle() <= wxPENSTYLE_LAST_HATCH
)
648 wxDELETE( m_penBrush );
649 HatchStyle style = HatchStyleHorizontal;
650 switch( pen.GetStyle() )
652 case wxPENSTYLE_BDIAGONAL_HATCH :
653 style = HatchStyleBackwardDiagonal;
655 case wxPENSTYLE_CROSSDIAG_HATCH :
656 style = HatchStyleDiagonalCross;
658 case wxPENSTYLE_FDIAGONAL_HATCH :
659 style = HatchStyleForwardDiagonal;
661 case wxPENSTYLE_CROSS_HATCH :
662 style = HatchStyleCross;
664 case wxPENSTYLE_HORIZONTAL_HATCH :
665 style = HatchStyleHorizontal;
667 case wxPENSTYLE_VERTICAL_HATCH :
668 style = HatchStyleVertical;
672 m_penBrush = new HatchBrush(style,Color( pen.GetColour().Alpha() , pen.GetColour().Red() ,
673 pen.GetColour().Green() , pen.GetColour().Blue() ), Color.Transparent );
674 m_pen->SetBrush( m_penBrush )
681 void wxCairoPenData::Apply( wxGraphicsContext
* context
)
683 cairo_t
* ctext
= (cairo_t
*) context
->GetNativeContext();
684 cairo_set_line_width(ctext
,m_width
);
685 cairo_set_source_rgba(ctext
,m_red
,m_green
, m_blue
,m_alpha
);
686 cairo_set_line_cap(ctext
,m_cap
);
687 cairo_set_line_join(ctext
,m_join
);
688 cairo_set_dash(ctext
,(double*)m_lengths
,m_count
,0.0);
691 //-----------------------------------------------------------------------------
692 // wxCairoBrushData implementation
693 //-----------------------------------------------------------------------------
695 wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer
* renderer
)
696 : wxGraphicsObjectRefData( renderer
)
701 wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer
* renderer
, const wxBrush
&brush
)
702 : wxGraphicsObjectRefData(renderer
)
706 m_red
= brush
.GetColour().Red()/255.0;
707 m_green
= brush
.GetColour().Green()/255.0;
708 m_blue
= brush
.GetColour().Blue()/255.0;
709 m_alpha
= brush
.GetColour().Alpha()/255.0;
711 if ( brush.GetStyle() == wxBRUSHSTYLE_SOLID)
713 m_brush = new SolidBrush( Color( brush.GetColour().Alpha() , brush.GetColour().Red() ,
714 brush.GetColour().Green() , brush.GetColour().Blue() ) );
716 else if ( brush.IsHatch() )
718 HatchStyle style = HatchStyleHorizontal;
719 switch( brush.GetStyle() )
721 case wxBRUSHSTYLE_BDIAGONAL_HATCH :
722 style = HatchStyleBackwardDiagonal;
724 case wxBRUSHSTYLE_CROSSDIAG_HATCH :
725 style = HatchStyleDiagonalCross;
727 case wxBRUSHSTYLE_FDIAGONAL_HATCH :
728 style = HatchStyleForwardDiagonal;
730 case wxBRUSHSTYLE_CROSS_HATCH :
731 style = HatchStyleCross;
733 case wxBRUSHSTYLE_HORIZONTAL_HATCH :
734 style = HatchStyleHorizontal;
736 case wxBRUSHSTYLE_VERTICAL_HATCH :
737 style = HatchStyleVertical;
741 m_brush = new HatchBrush(style,Color( brush.GetColour().Alpha() , brush.GetColour().Red() ,
742 brush.GetColour().Green() , brush.GetColour().Blue() ), Color.Transparent );
746 wxBitmap* bmp = brush.GetStipple();
747 if ( bmp && bmp->IsOk() )
749 wxDELETE( m_brushImage );
750 m_brushImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE());
751 m_brush = new TextureBrush(m_brushImage);
757 wxCairoBrushData::~wxCairoBrushData ()
760 cairo_pattern_destroy(m_brushPattern
);
763 void wxCairoBrushData::Apply( wxGraphicsContext
* context
)
765 cairo_t
* ctext
= (cairo_t
*) context
->GetNativeContext();
766 if ( m_brushPattern
)
768 cairo_set_source(ctext
,m_brushPattern
);
772 cairo_set_source_rgba(ctext
,m_red
,m_green
, m_blue
,m_alpha
);
776 void wxCairoBrushData::AddGradientStops(const wxGraphicsGradientStops
& stops
)
778 // loop over all the stops, they include the beginning and ending ones
779 const unsigned numStops
= stops
.GetCount();
780 for ( unsigned n
= 0; n
< numStops
; n
++ )
782 const wxGraphicsGradientStop stop
= stops
.Item(n
);
784 const wxColour col
= stop
.GetColour();
786 cairo_pattern_add_color_stop_rgba
797 wxASSERT_MSG(cairo_pattern_status(m_brushPattern
) == CAIRO_STATUS_SUCCESS
,
798 wxT("Couldn't create cairo pattern"));
802 wxCairoBrushData::CreateLinearGradientBrush(wxDouble x1
, wxDouble y1
,
803 wxDouble x2
, wxDouble y2
,
804 const wxGraphicsGradientStops
& stops
)
806 m_brushPattern
= cairo_pattern_create_linear(x1
,y1
,x2
,y2
);
808 AddGradientStops(stops
);
812 wxCairoBrushData::CreateRadialGradientBrush(wxDouble xo
, wxDouble yo
,
813 wxDouble xc
, wxDouble yc
,
815 const wxGraphicsGradientStops
& stops
)
817 m_brushPattern
= cairo_pattern_create_radial(xo
,yo
,0.0,xc
,yc
,radius
);
819 AddGradientStops(stops
);
822 void wxCairoBrushData::Init()
824 m_brushPattern
= NULL
;
827 //-----------------------------------------------------------------------------
828 // wxCairoFontData implementation
829 //-----------------------------------------------------------------------------
831 void wxCairoFontData::InitColour(const wxColour
& col
)
833 m_red
= col
.Red()/255.0;
834 m_green
= col
.Green()/255.0;
835 m_blue
= col
.Blue()/255.0;
836 m_alpha
= col
.Alpha()/255.0;
840 wxCairoFontData::InitFontComponents(const wxString
& facename
,
841 cairo_font_slant_t slant
,
842 cairo_font_weight_t weight
)
844 m_fontName
= facename
.mb_str(wxConvUTF8
);
849 wxCairoFontData::wxCairoFontData( wxGraphicsRenderer
* renderer
, const wxFont
&font
,
850 const wxColour
& col
) : wxGraphicsObjectRefData(renderer
)
854 m_size
= font
.GetPointSize();
857 m_font
= cairo_quartz_font_face_create_for_cgfont( font
.OSXGetCGFont() );
858 #elif defined(__WXGTK__)
859 m_font
= pango_font_description_copy( font
.GetNativeFontInfo()->description
);
860 m_underlined
= font
.GetUnderlined();
861 m_strikethrough
= font
.GetStrikethrough();
866 font
.GetStyle() == wxFONTSTYLE_ITALIC
? CAIRO_FONT_SLANT_ITALIC
867 : CAIRO_FONT_SLANT_NORMAL
,
868 font
.GetWeight() == wxFONTWEIGHT_BOLD
? CAIRO_FONT_WEIGHT_BOLD
869 : CAIRO_FONT_WEIGHT_NORMAL
874 wxCairoFontData::wxCairoFontData(wxGraphicsRenderer
* renderer
,
876 const wxString
& facename
,
878 const wxColour
& col
) :
879 wxGraphicsObjectRefData(renderer
)
883 // Resolution for Cairo image surfaces is 72 DPI meaning that the sizes in
884 // points and pixels are identical, so we can just pass the size in pixels
885 // directly to cairo_set_font_size().
886 m_size
= sizeInPixels
;
888 #if defined(__WXGTK__) || defined(__WXMAC__)
892 // There is no need to set m_underlined under wxGTK in this case, it can
893 // only be used if m_font != NULL.
898 flags
& wxFONTFLAG_ITALIC
? CAIRO_FONT_SLANT_ITALIC
899 : CAIRO_FONT_SLANT_NORMAL
,
900 flags
& wxFONTFLAG_BOLD
? CAIRO_FONT_WEIGHT_BOLD
901 : CAIRO_FONT_WEIGHT_NORMAL
905 wxCairoFontData::~wxCairoFontData()
909 cairo_font_face_destroy( m_font
);
910 #elif defined(__WXGTK__)
912 pango_font_description_free( m_font
);
917 bool wxCairoFontData::Apply( wxGraphicsContext
* context
)
919 cairo_t
* ctext
= (cairo_t
*) context
->GetNativeContext();
920 cairo_set_source_rgba(ctext
,m_red
,m_green
, m_blue
,m_alpha
);
924 // Nothing to do, the caller uses Pango layout functions to do
928 #elif defined(__WXMAC__)
931 cairo_set_font_face(ctext
, m_font
);
932 cairo_set_font_size(ctext
, m_size
);
937 // If we get here, we must be on a platform without native font support or
938 // we're using toy Cairo API even under wxGTK/wxMac.
939 cairo_select_font_face(ctext
, m_fontName
, m_slant
, m_weight
);
940 cairo_set_font_size(ctext
, m_size
);
942 // Indicate that we don't use native fonts for the platforms which care
943 // about this (currently only wxGTK).
947 //-----------------------------------------------------------------------------
948 // wxCairoPathData implementation
949 //-----------------------------------------------------------------------------
951 wxCairoPathData::wxCairoPathData( wxGraphicsRenderer
* renderer
, cairo_t
* pathcontext
)
952 : wxGraphicsPathData(renderer
)
956 m_pathContext
= pathcontext
;
960 cairo_surface_t
* surface
= cairo_image_surface_create(CAIRO_FORMAT_ARGB32
,1,1);
961 m_pathContext
= cairo_create(surface
);
962 cairo_surface_destroy (surface
);
966 wxCairoPathData::~wxCairoPathData()
968 cairo_destroy(m_pathContext
);
971 wxGraphicsObjectRefData
*wxCairoPathData::Clone() const
973 cairo_surface_t
* surface
= cairo_image_surface_create(CAIRO_FORMAT_ARGB32
,1,1);
974 cairo_t
* pathcontext
= cairo_create(surface
);
975 cairo_surface_destroy (surface
);
977 cairo_path_t
* path
= cairo_copy_path(m_pathContext
);
978 cairo_append_path(pathcontext
, path
);
979 cairo_path_destroy(path
);
980 return new wxCairoPathData( GetRenderer() ,pathcontext
);
984 void* wxCairoPathData::GetNativePath() const
986 return cairo_copy_path(m_pathContext
) ;
989 void wxCairoPathData::UnGetNativePath(void *p
) const
991 cairo_path_destroy((cairo_path_t
*)p
);
998 void wxCairoPathData::MoveToPoint( wxDouble x
, wxDouble y
)
1000 cairo_move_to(m_pathContext
,x
,y
);
1003 void wxCairoPathData::AddLineToPoint( wxDouble x
, wxDouble y
)
1005 cairo_line_to(m_pathContext
,x
,y
);
1008 void wxCairoPathData::AddPath( const wxGraphicsPathData
* path
)
1010 cairo_path_t
* p
= (cairo_path_t
*)path
->GetNativePath();
1011 cairo_append_path(m_pathContext
, p
);
1015 void wxCairoPathData::CloseSubpath()
1017 cairo_close_path(m_pathContext
);
1020 void wxCairoPathData::AddCurveToPoint( wxDouble cx1
, wxDouble cy1
, wxDouble cx2
, wxDouble cy2
, wxDouble x
, wxDouble y
)
1022 cairo_curve_to(m_pathContext
,cx1
,cy1
,cx2
,cy2
,x
,y
);
1025 // gets the last point of the current path, (0,0) if not yet set
1026 void wxCairoPathData::GetCurrentPoint( wxDouble
* x
, wxDouble
* y
) const
1029 cairo_get_current_point(m_pathContext
,&dx
,&dy
);
1036 void wxCairoPathData::AddArc( wxDouble x
, wxDouble y
, wxDouble r
, double startAngle
, double endAngle
, bool clockwise
)
1038 // as clockwise means positive in our system (y pointing downwards)
1039 // TODO make this interpretation dependent of the
1040 // real device trans
1041 if ( clockwise
||(endAngle
-startAngle
)>=2*M_PI
)
1042 cairo_arc(m_pathContext
,x
,y
,r
,startAngle
,endAngle
);
1044 cairo_arc_negative(m_pathContext
,x
,y
,r
,startAngle
,endAngle
);
1047 // transforms each point of this path by the matrix
1048 void wxCairoPathData::Transform( const wxGraphicsMatrixData
* matrix
)
1050 // as we don't have a true path object, we have to apply the inverse
1051 // matrix to the context
1052 cairo_matrix_t m
= *((cairo_matrix_t
*) matrix
->GetNativeMatrix());
1053 cairo_matrix_invert( &m
);
1054 cairo_transform(m_pathContext
,&m
);
1057 // gets the bounding box enclosing all points (possibly including control points)
1058 void wxCairoPathData::GetBox(wxDouble
*x
, wxDouble
*y
, wxDouble
*w
, wxDouble
*h
) const
1062 cairo_stroke_extents( m_pathContext
, &x1
, &y1
, &x2
, &y2
);
1086 bool wxCairoPathData::Contains( wxDouble x
, wxDouble y
, wxPolygonFillMode fillStyle
) const
1088 cairo_set_fill_rule(m_pathContext
,fillStyle
==wxODDEVEN_RULE
? CAIRO_FILL_RULE_EVEN_ODD
: CAIRO_FILL_RULE_WINDING
);
1089 return cairo_in_fill( m_pathContext
, x
, y
) != 0;
1092 //-----------------------------------------------------------------------------
1093 // wxCairoMatrixData implementation
1094 //-----------------------------------------------------------------------------
1096 wxCairoMatrixData::wxCairoMatrixData(wxGraphicsRenderer
* renderer
, const cairo_matrix_t
* matrix
)
1097 : wxGraphicsMatrixData(renderer
)
1103 wxCairoMatrixData::~wxCairoMatrixData()
1108 wxGraphicsObjectRefData
*wxCairoMatrixData::Clone() const
1110 return new wxCairoMatrixData(GetRenderer(),&m_matrix
);
1113 // concatenates the matrix
1114 void wxCairoMatrixData::Concat( const wxGraphicsMatrixData
*t
)
1116 cairo_matrix_multiply( &m_matrix
, &m_matrix
, (cairo_matrix_t
*) t
->GetNativeMatrix());
1119 // sets the matrix to the respective values
1120 void wxCairoMatrixData::Set(wxDouble a
, wxDouble b
, wxDouble c
, wxDouble d
,
1121 wxDouble tx
, wxDouble ty
)
1123 cairo_matrix_init( &m_matrix
, a
, b
, c
, d
, tx
, ty
);
1126 // gets the component valuess of the matrix
1127 void wxCairoMatrixData::Get(wxDouble
* a
, wxDouble
* b
, wxDouble
* c
,
1128 wxDouble
* d
, wxDouble
* tx
, wxDouble
* ty
) const
1130 if (a
) *a
= m_matrix
.xx
;
1131 if (b
) *b
= m_matrix
.yx
;
1132 if (c
) *c
= m_matrix
.xy
;
1133 if (d
) *d
= m_matrix
.yy
;
1134 if (tx
) *tx
= m_matrix
.x0
;
1135 if (ty
) *ty
= m_matrix
.y0
;
1138 // makes this the inverse matrix
1139 void wxCairoMatrixData::Invert()
1141 cairo_matrix_invert( &m_matrix
);
1144 // returns true if the elements of the transformation matrix are equal ?
1145 bool wxCairoMatrixData::IsEqual( const wxGraphicsMatrixData
* t
) const
1147 const cairo_matrix_t
* tm
= (cairo_matrix_t
*) t
->GetNativeMatrix();
1149 m_matrix
.xx
== tm
->xx
&&
1150 m_matrix
.yx
== tm
->yx
&&
1151 m_matrix
.xy
== tm
->xy
&&
1152 m_matrix
.yy
== tm
->yy
&&
1153 m_matrix
.x0
== tm
->x0
&&
1154 m_matrix
.y0
== tm
->y0
) ;
1157 // return true if this is the identity matrix
1158 bool wxCairoMatrixData::IsIdentity() const
1160 return ( m_matrix
.xx
== 1 && m_matrix
.yy
== 1 &&
1161 m_matrix
.yx
== 0 && m_matrix
.xy
== 0 && m_matrix
.x0
== 0 && m_matrix
.y0
== 0);
1168 // add the translation to this matrix
1169 void wxCairoMatrixData::Translate( wxDouble dx
, wxDouble dy
)
1171 cairo_matrix_translate( &m_matrix
, dx
, dy
) ;
1174 // add the scale to this matrix
1175 void wxCairoMatrixData::Scale( wxDouble xScale
, wxDouble yScale
)
1177 cairo_matrix_scale( &m_matrix
, xScale
, yScale
) ;
1180 // add the rotation to this matrix (radians)
1181 void wxCairoMatrixData::Rotate( wxDouble angle
)
1183 cairo_matrix_rotate( &m_matrix
, angle
) ;
1187 // apply the transforms
1190 // applies that matrix to the point
1191 void wxCairoMatrixData::TransformPoint( wxDouble
*x
, wxDouble
*y
) const
1193 double lx
= *x
, ly
= *y
;
1194 cairo_matrix_transform_point( &m_matrix
, &lx
, &ly
);
1199 // applies the matrix except for translations
1200 void wxCairoMatrixData::TransformDistance( wxDouble
*dx
, wxDouble
*dy
) const
1202 double lx
= *dx
, ly
= *dy
;
1203 cairo_matrix_transform_distance( &m_matrix
, &lx
, &ly
);
1208 // returns the native representation
1209 void * wxCairoMatrixData::GetNativeMatrix() const
1211 return (void*) &m_matrix
;
1214 // ----------------------------------------------------------------------------
1215 // wxCairoBitmap implementation
1216 // ----------------------------------------------------------------------------
1218 int wxCairoBitmapData::InitBuffer(int width
, int height
, cairo_format_t format
)
1220 wxUnusedVar(format
); // Only really unused with Cairo < 1.6.
1222 // Determine the stride: use cairo_format_stride_for_width() if available
1223 // but fall back to 4*width for the earlier versions as this is what that
1224 // function always returns, even in latest Cairo, anyhow.
1226 #if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 6, 0)
1227 if ( cairo_version() >= CAIRO_VERSION_ENCODE(1, 6, 0) )
1229 stride
= cairo_format_stride_for_width(format
, width
);
1231 // All our code would totally break if stride were not a multiple of 4
1232 // so ensure this is the case.
1235 wxFAIL_MSG("Unexpected Cairo image surface stride.");
1237 stride
+= 4 - stride
% 4;
1246 m_buffer
= new unsigned char[height
*stride
];
1251 void wxCairoBitmapData::InitSurface(cairo_format_t format
, int stride
)
1253 m_surface
= cairo_image_surface_create_for_data(
1254 m_buffer
, format
, m_width
, m_height
, stride
);
1255 m_pattern
= cairo_pattern_create_for_surface(m_surface
);
1258 wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer
* renderer
, cairo_surface_t
* bitmap
) :
1259 wxGraphicsObjectRefData( renderer
)
1262 m_pattern
= cairo_pattern_create_for_surface(m_surface
);
1265 wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer
* renderer
, const wxBitmap
& bmp
) : wxGraphicsObjectRefData( renderer
)
1267 wxCHECK_RET( bmp
.IsOk(), wxT("Invalid bitmap in wxCairoContext::DrawBitmap"));
1269 #ifdef wxHAS_RAW_BITMAP
1270 // Create a surface object and copy the bitmap pixel data to it. if the
1271 // image has alpha (or a mask represented as alpha) then we'll use a
1272 // different format and iterator than if it doesn't...
1273 cairo_format_t bufferFormat
= bmp
.GetDepth() == 32
1277 ? CAIRO_FORMAT_ARGB32
1278 : CAIRO_FORMAT_RGB24
;
1280 int stride
= InitBuffer(bmp
.GetWidth(), bmp
.GetHeight(), bufferFormat
);
1282 wxBitmap bmpSource
= bmp
; // we need a non-const instance
1283 wxUint32
* data
= (wxUint32
*)m_buffer
;
1285 if ( bufferFormat
== CAIRO_FORMAT_ARGB32
)
1287 // use the bitmap's alpha
1289 pixData(bmpSource
, wxPoint(0, 0), wxSize(m_width
, m_height
));
1290 wxCHECK_RET( pixData
, wxT("Failed to gain raw access to bitmap data."));
1292 wxAlphaPixelData::Iterator
p(pixData
);
1293 for (int y
=0; y
<m_height
; y
++)
1295 wxAlphaPixelData::Iterator rowStart
= p
;
1296 wxUint32
* const rowStartDst
= data
;
1297 for (int x
=0; x
<m_width
; x
++)
1299 // Each pixel in CAIRO_FORMAT_ARGB32 is a 32-bit quantity,
1300 // with alpha in the upper 8 bits, then red, then green, then
1301 // blue. The 32-bit quantities are stored native-endian.
1302 // Pre-multiplied alpha is used.
1303 unsigned char alpha
= p
.Alpha();
1307 *data
= ( alpha
<< 24
1308 | (p
.Red() * alpha
/255) << 16
1309 | (p
.Green() * alpha
/255) << 8
1310 | (p
.Blue() * alpha
/255) );
1315 data
= rowStartDst
+ stride
/ 4;
1317 p
.OffsetY(pixData
, 1);
1323 pixData(bmpSource
, wxPoint(0, 0), wxSize(m_width
, m_height
));
1324 wxCHECK_RET( pixData
, wxT("Failed to gain raw access to bitmap data."));
1326 wxNativePixelData::Iterator
p(pixData
);
1327 for (int y
=0; y
<m_height
; y
++)
1329 wxNativePixelData::Iterator rowStart
= p
;
1330 wxUint32
* const rowStartDst
= data
;
1331 for (int x
=0; x
<m_width
; x
++)
1333 // Each pixel in CAIRO_FORMAT_RGB24 is a 32-bit quantity, with
1334 // the upper 8 bits unused. Red, Green, and Blue are stored in
1335 // the remaining 24 bits in that order. The 32-bit quantities
1336 // are stored native-endian.
1337 *data
= ( p
.Red() << 16 | p
.Green() << 8 | p
.Blue() );
1342 data
= rowStartDst
+ stride
/ 4;
1344 p
.OffsetY(pixData
, 1);
1348 // if there is a mask, set the alpha bytes in the target buffer to
1349 // fully transparent or fully opaque
1350 if (bmpSource
.GetMask())
1352 wxBitmap bmpMask
= bmpSource
.GetMaskBitmap();
1353 bufferFormat
= CAIRO_FORMAT_ARGB32
;
1354 data
= (wxUint32
*)m_buffer
;
1356 pixData(bmpMask
, wxPoint(0, 0), wxSize(m_width
, m_height
));
1357 wxCHECK_RET( pixData
, wxT("Failed to gain raw access to mask data."));
1359 wxNativePixelData::Iterator
p(pixData
);
1360 for (int y
=0; y
<m_height
; y
++)
1362 wxNativePixelData::Iterator rowStart
= p
;
1363 wxUint32
* const rowStartDst
= data
;
1364 for (int x
=0; x
<m_width
; x
++)
1366 if (p
.Red()+p
.Green()+p
.Blue() == 0)
1369 *data
= (wxALPHA_OPAQUE
<< 24) | (*data
& 0x00FFFFFF);
1374 data
= rowStartDst
+ stride
/ 4;
1376 p
.OffsetY(pixData
, 1);
1381 InitSurface(bufferFormat
, stride
);
1382 #endif // wxHAS_RAW_BITMAP
1387 // Helper functions for dealing with alpha pre-multiplication.
1391 inline unsigned char Premultiply(unsigned char alpha
, unsigned char data
)
1393 return alpha
? (data
* alpha
)/0xff : data
;
1396 inline unsigned char Unpremultiply(unsigned char alpha
, unsigned char data
)
1398 return alpha
? (data
* 0xff)/alpha
: data
;
1401 } // anonymous namespace
1403 wxCairoBitmapData::wxCairoBitmapData(wxGraphicsRenderer
* renderer
,
1404 const wxImage
& image
)
1405 : wxGraphicsObjectRefData(renderer
)
1407 const cairo_format_t bufferFormat
= image
.HasAlpha()
1408 ? CAIRO_FORMAT_ARGB32
1409 : CAIRO_FORMAT_RGB24
;
1411 int stride
= InitBuffer(image
.GetWidth(), image
.GetHeight(), bufferFormat
);
1413 // Copy wxImage data into the buffer. Notice that we work with wxUint32
1414 // values and not bytes becase Cairo always works with buffers in native
1416 wxUint32
* dst
= reinterpret_cast<wxUint32
*>(m_buffer
);
1417 const unsigned char* src
= image
.GetData();
1419 if ( bufferFormat
== CAIRO_FORMAT_ARGB32
)
1421 const unsigned char* alpha
= image
.GetAlpha();
1423 for ( int y
= 0; y
< m_height
; y
++ )
1425 wxUint32
* const rowStartDst
= dst
;
1427 for ( int x
= 0; x
< m_width
; x
++ )
1429 const unsigned char a
= *alpha
++;
1432 Premultiply(a
, src
[0]) << 16 |
1433 Premultiply(a
, src
[1]) << 8 |
1434 Premultiply(a
, src
[2]);
1438 dst
= rowStartDst
+ stride
/ 4;
1443 for ( int y
= 0; y
< m_height
; y
++ )
1445 wxUint32
* const rowStartDst
= dst
;
1447 for ( int x
= 0; x
< m_width
; x
++ )
1449 *dst
++ = src
[0] << 16 |
1455 dst
= rowStartDst
+ stride
/ 4;
1459 InitSurface(bufferFormat
, stride
);
1462 wxImage
wxCairoBitmapData::ConvertToImage() const
1464 wxImage
image(m_width
, m_height
, false /* don't clear */);
1466 // Get the surface type and format.
1467 wxCHECK_MSG( cairo_surface_get_type(m_surface
) == CAIRO_SURFACE_TYPE_IMAGE
,
1469 wxS("Can't convert non-image surface to image.") );
1471 switch ( cairo_image_surface_get_format(m_surface
) )
1473 case CAIRO_FORMAT_ARGB32
:
1477 case CAIRO_FORMAT_RGB24
:
1478 // Nothing to do, we don't use alpha by default.
1481 case CAIRO_FORMAT_A8
:
1482 case CAIRO_FORMAT_A1
:
1483 wxFAIL_MSG(wxS("Unsupported Cairo image surface type."));
1487 wxFAIL_MSG(wxS("Unknown Cairo image surface type."));
1491 // Prepare for copying data.
1492 const wxUint32
* src
= (wxUint32
*)cairo_image_surface_get_data(m_surface
);
1493 wxCHECK_MSG( src
, wxNullImage
, wxS("Failed to get Cairo surface data.") );
1495 int stride
= cairo_image_surface_get_stride(m_surface
);
1496 wxCHECK_MSG( stride
> 0, wxNullImage
,
1497 wxS("Failed to get Cairo surface stride.") );
1499 // As we work with wxUint32 pointers and not char ones, we need to adjust
1500 // the stride accordingly. This should be lossless as the stride must be a
1501 // multiple of pixel size.
1502 wxASSERT_MSG( !(stride
% sizeof(wxUint32
)), wxS("Unexpected stride.") );
1503 stride
/= sizeof(wxUint32
);
1505 unsigned char* dst
= image
.GetData();
1506 unsigned char *alpha
= image
.GetAlpha();
1509 // We need to also copy alpha and undo the pre-multiplication as Cairo
1510 // stores pre-multiplied values in this format while wxImage does not.
1511 for ( int y
= 0; y
< m_height
; y
++ )
1513 const wxUint32
* const rowStart
= src
;
1514 for ( int x
= 0; x
< m_width
; x
++ )
1516 const wxUint32 argb
= *src
++;
1518 *alpha
++ = (argb
& 0xff000000) >> 24;
1520 // Copy the RGB data undoing the pre-multiplication.
1521 *dst
++ = Unpremultiply(*alpha
, (argb
& 0x00ff0000) >> 16);
1522 *dst
++ = Unpremultiply(*alpha
, (argb
& 0x0000ff00) >> 8);
1523 *dst
++ = Unpremultiply(*alpha
, (argb
& 0x000000ff));
1526 src
= rowStart
+ stride
;
1531 // Things are pretty simple in this case, just copy RGB bytes.
1532 for ( int y
= 0; y
< m_height
; y
++ )
1534 const wxUint32
* const rowStart
= src
;
1535 for ( int x
= 0; x
< m_width
; x
++ )
1537 const wxUint32 argb
= *src
++;
1539 *dst
++ = (argb
& 0x00ff0000) >> 16;
1540 *dst
++ = (argb
& 0x0000ff00) >> 8;
1541 *dst
++ = (argb
& 0x000000ff);
1544 src
= rowStart
+ stride
;
1551 #endif // wxUSE_IMAGE
1553 wxCairoBitmapData::~wxCairoBitmapData()
1556 cairo_pattern_destroy(m_pattern
);
1559 cairo_surface_destroy(m_surface
);
1564 //-----------------------------------------------------------------------------
1565 // wxCairoContext implementation
1566 //-----------------------------------------------------------------------------
1568 class wxCairoOffsetHelper
1571 wxCairoOffsetHelper( cairo_t
* ctx
, bool offset
)
1576 cairo_translate( m_ctx
, 0.5, 0.5 );
1578 ~wxCairoOffsetHelper( )
1581 cairo_translate( m_ctx
, -0.5, -0.5 );
1588 wxCairoContext::wxCairoContext( wxGraphicsRenderer
* renderer
, const wxPrinterDC
& dc
)
1589 : wxGraphicsContext(renderer
)
1592 // wxMSW contexts always use MM_ANISOTROPIC, which messes up
1593 // text rendering when printing using Cairo. Switch it to MM_TEXT
1594 // map mode to avoid this problem.
1595 HDC hdc
= (HDC
)dc
.GetHDC();
1596 ::SetMapMode(hdc
, MM_TEXT
);
1597 m_mswSurface
= cairo_win32_printing_surface_create(hdc
);
1598 Init( cairo_create(m_mswSurface
) );
1602 const wxDCImpl
*impl
= dc
.GetImpl();
1603 Init( (cairo_t
*) impl
->GetCairoContext() );
1605 wxSize sz
= dc
.GetSize();
1609 wxPoint org
= dc
.GetDeviceOrigin();
1610 cairo_translate( m_context
, org
.x
, org
.y
);
1613 dc
.GetUserScale( &sx
, &sy
);
1615 // TODO: Determine if these fixes are needed on other platforms too.
1616 // On MSW, without this the printer context will not respect wxDC SetMapMode calls.
1617 // For example, using dc.SetMapMode(wxMM_POINTS) can let us share printer and screen
1621 dc
.GetLogicalScale( &lsx
, &lsy
);
1625 cairo_scale( m_context
, sx
, sy
);
1627 org
= dc
.GetLogicalOrigin();
1628 cairo_translate( m_context
, -org
.x
, -org
.y
);
1631 wxCairoContext::wxCairoContext( wxGraphicsRenderer
* renderer
, const wxWindowDC
& dc
)
1632 : wxGraphicsContext(renderer
)
1635 dc
.GetSize( &width
, &height
);
1639 m_enableOffset
= true;
1642 m_mswSurface
= cairo_win32_surface_create((HDC
)dc
.GetHDC());
1643 Init( cairo_create(m_mswSurface
) );
1647 wxGTKDCImpl
*impldc
= (wxGTKDCImpl
*) dc
.GetImpl();
1648 Init( gdk_cairo_create( impldc
->GetGDKWindow() ) );
1651 wxGraphicsMatrix matrix
= CreateMatrix();
1653 wxPoint org
= dc
.GetDeviceOrigin();
1654 matrix
.Translate( org
.x
, org
.y
);
1656 org
= dc
.GetLogicalOrigin();
1657 matrix
.Translate( -org
.x
, -org
.y
);
1660 dc
.GetUserScale( &sx
, &sy
);
1661 matrix
.Scale( sx
, sy
);
1663 ConcatTransform( matrix
);
1668 CGContextRef cgcontext
= (CGContextRef
)dc
.GetWindow()->MacGetCGContextRef();
1669 cairo_surface_t
* surface
= cairo_quartz_surface_create_for_cg_context(cgcontext
, width
, height
);
1670 Init( cairo_create( surface
) );
1671 cairo_surface_destroy( surface
);
1675 wxCairoContext::wxCairoContext( wxGraphicsRenderer
* renderer
, const wxMemoryDC
& dc
)
1676 : wxGraphicsContext(renderer
)
1679 dc
.GetSize( &width
, &height
);
1683 m_enableOffset
= true;
1686 m_mswSurface
= cairo_win32_surface_create((HDC
)dc
.GetHDC());
1687 Init( cairo_create(m_mswSurface
) );
1691 wxGTKDCImpl
*impldc
= (wxGTKDCImpl
*) dc
.GetImpl();
1692 Init( gdk_cairo_create( impldc
->GetGDKWindow() ) );
1695 wxGraphicsMatrix matrix
= CreateMatrix();
1697 wxPoint org
= dc
.GetDeviceOrigin();
1698 matrix
.Translate( org
.x
, org
.y
);
1700 org
= dc
.GetLogicalOrigin();
1701 matrix
.Translate( -org
.x
, -org
.y
);
1704 dc
.GetUserScale( &sx
, &sy
);
1705 matrix
.Scale( sx
, sy
);
1707 ConcatTransform( matrix
);
1712 CGContextRef cgcontext
= (CGContextRef
)dc
.GetWindow()->MacGetCGContextRef();
1713 cairo_surface_t
* surface
= cairo_quartz_surface_create_for_cg_context(cgcontext
, width
, height
);
1714 Init( cairo_create( surface
) );
1715 cairo_surface_destroy( surface
);
1720 wxCairoContext::wxCairoContext( wxGraphicsRenderer
* renderer
, GdkDrawable
*drawable
)
1721 : wxGraphicsContext(renderer
)
1723 Init( gdk_cairo_create( drawable
) );
1726 gdk_drawable_get_size( drawable
, &width
, &height
);
1733 wxCairoContext::wxCairoContext( wxGraphicsRenderer
* renderer
, HDC handle
)
1734 : wxGraphicsContext(renderer
)
1736 m_mswSurface
= cairo_win32_surface_create(handle
);
1737 Init( cairo_create(m_mswSurface
) );
1744 wxCairoContext::wxCairoContext( wxGraphicsRenderer
* renderer
, cairo_t
*context
)
1745 : wxGraphicsContext(renderer
)
1752 wxCairoContext::wxCairoContext( wxGraphicsRenderer
* renderer
, wxWindow
*window
)
1753 : wxGraphicsContext(renderer
)
1755 m_enableOffset
= true;
1757 // something along these lines (copied from dcclient)
1759 // Some controls don't have m_wxwindow - like wxStaticBox, but the user
1760 // code should still be able to create wxClientDCs for them, so we will
1761 // use the parent window here then.
1762 if (window
->m_wxwindow
== NULL
)
1764 window
= window
->GetParent();
1767 wxASSERT_MSG( window
->m_wxwindow
, wxT("wxCairoContext needs a widget") );
1769 Init(gdk_cairo_create(window
->GTKGetDrawingWindow()));
1771 wxSize sz
= window
->GetSize();
1777 m_mswSurface
= cairo_win32_surface_create((HDC
)window
->GetHandle());
1778 Init(cairo_create(m_mswSurface
));
1783 wxCairoContext::wxCairoContext(wxGraphicsRenderer
* renderer
) :
1784 wxGraphicsContext(renderer
)
1789 wxCairoContext::~wxCairoContext()
1795 cairo_destroy(m_context
);
1799 cairo_surface_destroy(m_mswSurface
);
1803 void wxCairoContext::Init(cairo_t
*context
)
1805 m_context
= context
;
1811 void wxCairoContext::Clip( const wxRegion
& region
)
1813 // Create a path with all the rectangles in the region
1814 wxGraphicsPath path
= GetRenderer()->CreatePath();
1815 wxRegionIterator
ri(region
);
1818 path
.AddRectangle(ri
.GetX(), ri
.GetY(), ri
.GetW(), ri
.GetH());
1822 // Put it in the context
1823 cairo_path_t
* cp
= (cairo_path_t
*) path
.GetNativePath() ;
1824 cairo_append_path(m_context
, cp
);
1826 // clip to that path
1827 cairo_clip(m_context
);
1828 path
.UnGetNativePath(cp
);
1831 void wxCairoContext::Clip( wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
)
1833 // Create a path with this rectangle
1834 wxGraphicsPath path
= GetRenderer()->CreatePath();
1835 path
.AddRectangle(x
,y
,w
,h
);
1837 // Put it in the context
1838 cairo_path_t
* cp
= (cairo_path_t
*) path
.GetNativePath() ;
1839 cairo_append_path(m_context
, cp
);
1841 // clip to that path
1842 cairo_clip(m_context
);
1843 path
.UnGetNativePath(cp
);
1846 void wxCairoContext::ResetClip()
1848 cairo_reset_clip(m_context
);
1852 void wxCairoContext::StrokePath( const wxGraphicsPath
& path
)
1854 if ( !m_pen
.IsNull() )
1856 wxCairoOffsetHelper
helper( m_context
, ShouldOffset() ) ;
1857 cairo_path_t
* cp
= (cairo_path_t
*) path
.GetNativePath() ;
1858 cairo_append_path(m_context
,cp
);
1859 ((wxCairoPenData
*)m_pen
.GetRefData())->Apply(this);
1860 cairo_stroke(m_context
);
1861 path
.UnGetNativePath(cp
);
1865 void wxCairoContext::FillPath( const wxGraphicsPath
& path
, wxPolygonFillMode fillStyle
)
1867 if ( !m_brush
.IsNull() )
1869 wxCairoOffsetHelper
helper( m_context
, ShouldOffset() ) ;
1870 cairo_path_t
* cp
= (cairo_path_t
*) path
.GetNativePath() ;
1871 cairo_append_path(m_context
,cp
);
1872 ((wxCairoBrushData
*)m_brush
.GetRefData())->Apply(this);
1873 cairo_set_fill_rule(m_context
,fillStyle
==wxODDEVEN_RULE
? CAIRO_FILL_RULE_EVEN_ODD
: CAIRO_FILL_RULE_WINDING
);
1874 cairo_fill(m_context
);
1875 path
.UnGetNativePath(cp
);
1879 void wxCairoContext::Rotate( wxDouble angle
)
1881 cairo_rotate(m_context
,angle
);
1884 void wxCairoContext::Translate( wxDouble dx
, wxDouble dy
)
1886 cairo_translate(m_context
,dx
,dy
);
1889 void wxCairoContext::Scale( wxDouble xScale
, wxDouble yScale
)
1891 cairo_scale(m_context
,xScale
,yScale
);
1894 // concatenates this transform with the current transform of this context
1895 void wxCairoContext::ConcatTransform( const wxGraphicsMatrix
& matrix
)
1897 cairo_transform(m_context
,(const cairo_matrix_t
*) matrix
.GetNativeMatrix());
1900 // sets the transform of this context
1901 void wxCairoContext::SetTransform( const wxGraphicsMatrix
& matrix
)
1903 cairo_set_matrix(m_context
,(const cairo_matrix_t
*) matrix
.GetNativeMatrix());
1906 // gets the matrix of this context
1907 wxGraphicsMatrix
wxCairoContext::GetTransform() const
1909 wxGraphicsMatrix matrix
= CreateMatrix();
1910 cairo_get_matrix(m_context
,(cairo_matrix_t
*) matrix
.GetNativeMatrix());
1916 void wxCairoContext::PushState()
1918 cairo_save(m_context
);
1921 void wxCairoContext::PopState()
1923 cairo_restore(m_context
);
1926 void wxCairoContext::DrawBitmap( const wxBitmap
&bmp
, wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
)
1928 wxGraphicsBitmap bitmap
= GetRenderer()->CreateBitmap(bmp
);
1929 DrawBitmap(bitmap
, x
, y
, w
, h
);
1933 void wxCairoContext::DrawBitmap(const wxGraphicsBitmap
&bmp
, wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
)
1937 // In case we're scaling the image by using a width and height different
1938 // than the bitmap's size create a pattern transformation on the surface and
1939 // draw the transformed pattern.
1940 wxCairoBitmapData
* data
= static_cast<wxCairoBitmapData
*>(bmp
.GetRefData());
1941 cairo_pattern_t
* pattern
= data
->GetCairoPattern();
1942 wxSize size
= data
->GetSize();
1944 wxDouble scaleX
= w
/ size
.GetWidth();
1945 wxDouble scaleY
= h
/ size
.GetHeight();
1947 // prepare to draw the image
1948 cairo_translate(m_context
, x
, y
);
1949 cairo_scale(m_context
, scaleX
, scaleY
);
1950 cairo_set_source(m_context
, pattern
);
1951 // use the original size here since the context is scaled already...
1952 cairo_rectangle(m_context
, 0, 0, size
.GetWidth(), size
.GetHeight());
1953 // fill the rectangle using the pattern
1954 cairo_fill(m_context
);
1959 void wxCairoContext::DrawIcon( const wxIcon
&icon
, wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
)
1961 // An icon is a bitmap on wxGTK, so do this the easy way. When we want to
1962 // start using the Cairo backend on other platforms then we may need to
1963 // fiddle with this...
1964 DrawBitmap(icon
, x
, y
, w
, h
);
1968 void wxCairoContext::DoDrawText(const wxString
& str
, wxDouble x
, wxDouble y
)
1970 wxCHECK_RET( !m_font
.IsNull(),
1971 wxT("wxCairoContext::DrawText - no valid font set") );
1976 const wxCharBuffer data
= str
.utf8_str();
1980 if ( ((wxCairoFontData
*)m_font
.GetRefData())->Apply(this) )
1983 size_t datalen
= strlen(data
);
1985 PangoLayout
*layout
= pango_cairo_create_layout (m_context
);
1986 wxCairoFontData
* font_data
= (wxCairoFontData
*) m_font
.GetRefData();
1987 pango_layout_set_font_description( layout
, font_data
->GetFont());
1988 pango_layout_set_text(layout
, data
, datalen
);
1990 PangoAttrList
* attrs
= NULL
;
1991 if (font_data
->GetUnderlined())
1993 attrs
= pango_attr_list_new();
1994 PangoAttribute
*attr
= pango_attr_underline_new(PANGO_UNDERLINE_SINGLE
);
1995 pango_attr_list_insert(attrs
, attr
);
1997 if (font_data
->GetStrikethrough())
2000 attrs
= pango_attr_list_new();
2001 PangoAttribute
* attr
= pango_attr_strikethrough_new(true);
2002 pango_attr_list_insert(attrs
, attr
);
2006 pango_layout_set_attributes(layout
, attrs
);
2007 pango_attr_list_unref(attrs
);
2010 cairo_move_to(m_context
, x
, y
);
2011 pango_cairo_show_layout (m_context
, layout
);
2013 g_object_unref (layout
);
2015 // Don't use Cairo text API, we already did everything.
2020 // Cairo's x,y for drawing text is at the baseline, so we need to adjust
2021 // the position we move to by the ascent.
2022 cairo_font_extents_t fe
;
2023 cairo_font_extents(m_context
, &fe
);
2024 cairo_move_to(m_context
, x
, y
+fe
.ascent
);
2026 cairo_show_text(m_context
, data
);
2029 void wxCairoContext::GetTextExtent( const wxString
&str
, wxDouble
*width
, wxDouble
*height
,
2030 wxDouble
*descent
, wxDouble
*externalLeading
) const
2032 wxCHECK_RET( !m_font
.IsNull(), wxT("wxCairoContext::GetTextExtent - no valid font set") );
2040 if ( externalLeading
)
2041 *externalLeading
= 0;
2046 if ( ((wxCairoFontData
*)m_font
.GetRefData())->Apply((wxCairoContext
*)this) )
2051 PangoLayout
*layout
= pango_cairo_create_layout (m_context
);
2052 pango_layout_set_font_description( layout
, ((wxCairoFontData
*)m_font
.GetRefData())->GetFont());
2053 const wxCharBuffer data
= str
.utf8_str();
2058 pango_layout_set_text( layout
, data
, strlen(data
) );
2059 pango_layout_get_pixel_size (layout
, &w
, &h
);
2066 PangoLayoutIter
*iter
= pango_layout_get_iter(layout
);
2067 int baseline
= pango_layout_iter_get_baseline(iter
);
2068 pango_layout_iter_free(iter
);
2069 *descent
= h
- PANGO_PIXELS(baseline
);
2071 g_object_unref (layout
);
2078 const wxWX2MBbuf
buf(str
.mb_str(wxConvUTF8
));
2079 cairo_text_extents_t te
;
2080 cairo_text_extents(m_context
, buf
, &te
);
2084 if (height
|| descent
|| externalLeading
)
2086 cairo_font_extents_t fe
;
2087 cairo_font_extents(m_context
, &fe
);
2089 // some backends have negative descents
2091 if ( fe
.descent
< 0 )
2092 fe
.descent
= -fe
.descent
;
2094 if ( fe
.height
< (fe
.ascent
+ fe
.descent
) )
2096 // some backends are broken re height ... (eg currently ATSUI)
2097 fe
.height
= fe
.ascent
+ fe
.descent
;
2101 *height
= fe
.height
;
2103 *descent
= fe
.descent
;
2104 if ( externalLeading
)
2105 *externalLeading
= wxMax(0, fe
.height
- (fe
.ascent
+ fe
.descent
));
2109 void wxCairoContext::GetPartialTextExtents(const wxString
& text
, wxArrayDouble
& widths
) const
2112 widths
.Add(0, text
.length());
2114 wxCHECK_RET( !m_font
.IsNull(), wxT("wxCairoContext::GetPartialTextExtents - no valid font set") );
2122 void * wxCairoContext::GetNativeContext()
2127 bool wxCairoContext::SetAntialiasMode(wxAntialiasMode antialias
)
2129 if (m_antialias
== antialias
)
2132 m_antialias
= antialias
;
2134 cairo_antialias_t antialiasMode
;
2137 case wxANTIALIAS_DEFAULT
:
2138 antialiasMode
= CAIRO_ANTIALIAS_DEFAULT
;
2140 case wxANTIALIAS_NONE
:
2141 antialiasMode
= CAIRO_ANTIALIAS_NONE
;
2146 cairo_set_antialias(m_context
, antialiasMode
);
2150 bool wxCairoContext::SetInterpolationQuality(wxInterpolationQuality
WXUNUSED(interpolation
))
2156 bool wxCairoContext::SetCompositionMode(wxCompositionMode op
)
2158 if ( m_composition
== op
)
2162 cairo_operator_t cop
;
2165 case wxCOMPOSITION_CLEAR
:
2166 cop
= CAIRO_OPERATOR_CLEAR
;
2168 case wxCOMPOSITION_SOURCE
:
2169 cop
= CAIRO_OPERATOR_SOURCE
;
2171 case wxCOMPOSITION_OVER
:
2172 cop
= CAIRO_OPERATOR_OVER
;
2174 case wxCOMPOSITION_IN
:
2175 cop
= CAIRO_OPERATOR_IN
;
2177 case wxCOMPOSITION_OUT
:
2178 cop
= CAIRO_OPERATOR_OUT
;
2180 case wxCOMPOSITION_ATOP
:
2181 cop
= CAIRO_OPERATOR_ATOP
;
2183 case wxCOMPOSITION_DEST
:
2184 cop
= CAIRO_OPERATOR_DEST
;
2186 case wxCOMPOSITION_DEST_OVER
:
2187 cop
= CAIRO_OPERATOR_DEST_OVER
;
2189 case wxCOMPOSITION_DEST_IN
:
2190 cop
= CAIRO_OPERATOR_DEST_IN
;
2192 case wxCOMPOSITION_DEST_OUT
:
2193 cop
= CAIRO_OPERATOR_DEST_OUT
;
2195 case wxCOMPOSITION_DEST_ATOP
:
2196 cop
= CAIRO_OPERATOR_DEST_ATOP
;
2198 case wxCOMPOSITION_XOR
:
2199 cop
= CAIRO_OPERATOR_XOR
;
2201 case wxCOMPOSITION_ADD
:
2202 cop
= CAIRO_OPERATOR_ADD
;
2207 cairo_set_operator(m_context
, cop
);
2211 void wxCairoContext::BeginLayer(wxDouble opacity
)
2213 m_layerOpacities
.push_back(opacity
);
2214 cairo_push_group(m_context
);
2217 void wxCairoContext::EndLayer()
2219 float opacity
= m_layerOpacities
.back();
2220 m_layerOpacities
.pop_back();
2221 cairo_pop_group_to_source(m_context
);
2222 cairo_paint_with_alpha(m_context
,opacity
);
2225 //-----------------------------------------------------------------------------
2226 // wxCairoRenderer declaration
2227 //-----------------------------------------------------------------------------
2229 class WXDLLIMPEXP_CORE wxCairoRenderer
: public wxGraphicsRenderer
2232 wxCairoRenderer() {}
2234 virtual ~wxCairoRenderer() {}
2238 virtual wxGraphicsContext
* CreateContext( const wxWindowDC
& dc
);
2239 virtual wxGraphicsContext
* CreateContext( const wxMemoryDC
& dc
);
2240 virtual wxGraphicsContext
* CreateContext( const wxPrinterDC
& dc
);
2242 virtual wxGraphicsContext
* CreateContextFromNativeContext( void * context
);
2244 virtual wxGraphicsContext
* CreateContextFromNativeWindow( void * window
);
2246 virtual wxGraphicsContext
* CreateContextFromImage(wxImage
& image
);
2247 #endif // wxUSE_IMAGE
2249 virtual wxGraphicsContext
* CreateContext( wxWindow
* window
);
2251 virtual wxGraphicsContext
* CreateMeasuringContext();
2253 #if wxUSE_ENH_METAFILE
2254 virtual wxGraphicsContext
* CreateContext( const wxEnhMetaFileDC
& dc
);
2259 virtual wxGraphicsPath
CreatePath();
2263 virtual wxGraphicsMatrix
CreateMatrix( wxDouble a
=1.0, wxDouble b
=0.0, wxDouble c
=0.0, wxDouble d
=1.0,
2264 wxDouble tx
=0.0, wxDouble ty
=0.0);
2267 virtual wxGraphicsPen
CreatePen(const wxPen
& pen
) ;
2269 virtual wxGraphicsBrush
CreateBrush(const wxBrush
& brush
) ;
2271 virtual wxGraphicsBrush
2272 CreateLinearGradientBrush(wxDouble x1
, wxDouble y1
,
2273 wxDouble x2
, wxDouble y2
,
2274 const wxGraphicsGradientStops
& stops
);
2276 virtual wxGraphicsBrush
2277 CreateRadialGradientBrush(wxDouble xo
, wxDouble yo
,
2278 wxDouble xc
, wxDouble yc
,
2280 const wxGraphicsGradientStops
& stops
);
2283 virtual wxGraphicsFont
CreateFont( const wxFont
&font
, const wxColour
&col
= *wxBLACK
) ;
2284 virtual wxGraphicsFont
CreateFont(double sizeInPixels
,
2285 const wxString
& facename
,
2286 int flags
= wxFONTFLAG_DEFAULT
,
2287 const wxColour
& col
= *wxBLACK
);
2289 // create a native bitmap representation
2290 virtual wxGraphicsBitmap
CreateBitmap( const wxBitmap
&bitmap
);
2292 virtual wxGraphicsBitmap
CreateBitmapFromImage(const wxImage
& image
);
2293 virtual wxImage
CreateImageFromBitmap(const wxGraphicsBitmap
& bmp
);
2294 #endif // wxUSE_IMAGE
2296 // create a graphics bitmap from a native bitmap
2297 virtual wxGraphicsBitmap
CreateBitmapFromNativeBitmap( void* bitmap
);
2299 // create a subimage from a native image representation
2300 virtual wxGraphicsBitmap
CreateSubBitmap( const wxGraphicsBitmap
&bitmap
, wxDouble x
, wxDouble y
, wxDouble w
, wxDouble h
);
2303 bool EnsureIsLoaded();
2306 friend class wxCairoModule
;
2309 DECLARE_DYNAMIC_CLASS_NO_COPY(wxCairoRenderer
)
2312 //-----------------------------------------------------------------------------
2313 // wxCairoRenderer implementation
2314 //-----------------------------------------------------------------------------
2316 IMPLEMENT_DYNAMIC_CLASS(wxCairoRenderer
,wxGraphicsRenderer
)
2318 static wxCairoRenderer gs_cairoGraphicsRenderer
;
2319 // temporary hack to allow creating a cairo context on any platform
2320 extern wxGraphicsRenderer
* gCairoRenderer
;
2321 wxGraphicsRenderer
* gCairoRenderer
= &gs_cairoGraphicsRenderer
;
2323 bool wxCairoRenderer::EnsureIsLoaded()
2327 return wxCairoInit();
2333 void wxCairoRenderer::Load()
2338 void wxCairoRenderer::Unload()
2343 // call EnsureIsLoaded() and return returnOnFail value if it fails
2344 #define ENSURE_LOADED_OR_RETURN(returnOnFail) \
2345 if ( !EnsureIsLoaded() ) \
2346 return (returnOnFail)
2348 wxGraphicsContext
* wxCairoRenderer::CreateContext( const wxWindowDC
& dc
)
2350 ENSURE_LOADED_OR_RETURN(NULL
);
2351 return new wxCairoContext(this,dc
);
2354 wxGraphicsContext
* wxCairoRenderer::CreateContext( const wxMemoryDC
& dc
)
2356 ENSURE_LOADED_OR_RETURN(NULL
);
2357 return new wxCairoContext(this,dc
);
2360 wxGraphicsContext
* wxCairoRenderer::CreateContext( const wxPrinterDC
& dc
)
2362 ENSURE_LOADED_OR_RETURN(NULL
);
2363 return new wxCairoContext(this, dc
);
2367 #if wxUSE_ENH_METAFILE
2368 wxGraphicsContext
* wxCairoRenderer::CreateContext( const wxEnhMetaFileDC
& WXUNUSED(dc
) )
2370 ENSURE_LOADED_OR_RETURN(NULL
);
2376 wxGraphicsContext
* wxCairoRenderer::CreateContextFromNativeContext( void * context
)
2378 ENSURE_LOADED_OR_RETURN(NULL
);
2380 return new wxCairoContext(this,(HDC
)context
);
2382 return new wxCairoContext(this,(cairo_t
*)context
);
2387 wxGraphicsContext
* wxCairoRenderer::CreateContextFromNativeWindow( void * window
)
2389 ENSURE_LOADED_OR_RETURN(NULL
);
2391 return new wxCairoContext(this,(GdkDrawable
*)window
);
2393 wxUnusedVar(window
);
2399 wxGraphicsContext
* wxCairoRenderer::CreateContextFromImage(wxImage
& image
)
2401 return new wxCairoImageContext(this, image
);
2403 #endif // wxUSE_IMAGE
2405 wxGraphicsContext
* wxCairoRenderer::CreateMeasuringContext()
2407 ENSURE_LOADED_OR_RETURN(NULL
);
2409 return CreateContextFromNativeWindow(gdk_get_default_root_window());
2415 wxGraphicsContext
* wxCairoRenderer::CreateContext( wxWindow
* window
)
2417 ENSURE_LOADED_OR_RETURN(NULL
);
2418 return new wxCairoContext(this, window
);
2423 wxGraphicsPath
wxCairoRenderer::CreatePath()
2425 ENSURE_LOADED_OR_RETURN(wxNullGraphicsPath
);
2426 wxGraphicsPath path
;
2427 path
.SetRefData( new wxCairoPathData(this) );
2434 wxGraphicsMatrix
wxCairoRenderer::CreateMatrix( wxDouble a
, wxDouble b
, wxDouble c
, wxDouble d
,
2435 wxDouble tx
, wxDouble ty
)
2438 ENSURE_LOADED_OR_RETURN(wxNullGraphicsMatrix
);
2440 wxCairoMatrixData
* data
= new wxCairoMatrixData( this );
2441 data
->Set( a
,b
,c
,d
,tx
,ty
) ;
2446 wxGraphicsPen
wxCairoRenderer::CreatePen(const wxPen
& pen
)
2448 ENSURE_LOADED_OR_RETURN(wxNullGraphicsPen
);
2449 if ( !pen
.IsOk() || pen
.GetStyle() == wxPENSTYLE_TRANSPARENT
)
2450 return wxNullGraphicsPen
;
2454 p
.SetRefData(new wxCairoPenData( this, pen
));
2459 wxGraphicsBrush
wxCairoRenderer::CreateBrush(const wxBrush
& brush
)
2461 ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush
);
2462 if ( !brush
.IsOk() || brush
.GetStyle() == wxBRUSHSTYLE_TRANSPARENT
)
2463 return wxNullGraphicsBrush
;
2467 p
.SetRefData(new wxCairoBrushData( this, brush
));
2473 wxCairoRenderer::CreateLinearGradientBrush(wxDouble x1
, wxDouble y1
,
2474 wxDouble x2
, wxDouble y2
,
2475 const wxGraphicsGradientStops
& stops
)
2477 ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush
);
2479 wxCairoBrushData
* d
= new wxCairoBrushData( this );
2480 d
->CreateLinearGradientBrush(x1
, y1
, x2
, y2
, stops
);
2486 wxCairoRenderer::CreateRadialGradientBrush(wxDouble xo
, wxDouble yo
,
2487 wxDouble xc
, wxDouble yc
, wxDouble r
,
2488 const wxGraphicsGradientStops
& stops
)
2490 ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush
);
2492 wxCairoBrushData
* d
= new wxCairoBrushData( this );
2493 d
->CreateRadialGradientBrush(xo
, yo
, xc
, yc
, r
, stops
);
2498 wxGraphicsFont
wxCairoRenderer::CreateFont( const wxFont
&font
, const wxColour
&col
)
2500 ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont
);
2504 p
.SetRefData(new wxCairoFontData( this , font
, col
));
2508 return wxNullGraphicsFont
;
2512 wxCairoRenderer::CreateFont(double sizeInPixels
,
2513 const wxString
& facename
,
2515 const wxColour
& col
)
2517 ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont
);
2519 wxGraphicsFont font
;
2520 font
.SetRefData(new wxCairoFontData(this, sizeInPixels
, facename
, flags
, col
));
2524 wxGraphicsBitmap
wxCairoRenderer::CreateBitmap( const wxBitmap
& bmp
)
2526 ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap
);
2530 p
.SetRefData(new wxCairoBitmapData( this , bmp
));
2534 return wxNullGraphicsBitmap
;
2539 wxGraphicsBitmap
wxCairoRenderer::CreateBitmapFromImage(const wxImage
& image
)
2541 wxGraphicsBitmap bmp
;
2543 ENSURE_LOADED_OR_RETURN(bmp
);
2547 bmp
.SetRefData(new wxCairoBitmapData(this, image
));
2553 wxImage
wxCairoRenderer::CreateImageFromBitmap(const wxGraphicsBitmap
& bmp
)
2555 ENSURE_LOADED_OR_RETURN(wxNullImage
);
2557 const wxCairoBitmapData
* const
2558 data
= static_cast<wxCairoBitmapData
*>(bmp
.GetGraphicsData());
2560 return data
? data
->ConvertToImage() : wxNullImage
;
2563 #endif // wxUSE_IMAGE
2566 wxGraphicsBitmap
wxCairoRenderer::CreateBitmapFromNativeBitmap( void* bitmap
)
2568 ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap
);
2569 if ( bitmap
!= NULL
)
2572 p
.SetRefData(new wxCairoBitmapData( this , (cairo_surface_t
*) bitmap
));
2576 return wxNullGraphicsBitmap
;
2580 wxCairoRenderer::CreateSubBitmap(const wxGraphicsBitmap
& WXUNUSED(bitmap
),
2581 wxDouble
WXUNUSED(x
),
2582 wxDouble
WXUNUSED(y
),
2583 wxDouble
WXUNUSED(w
),
2584 wxDouble
WXUNUSED(h
))
2586 ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap
);
2587 wxFAIL_MSG("wxCairoRenderer::CreateSubBitmap is not implemented.");
2588 return wxNullGraphicsBitmap
;
2591 wxGraphicsRenderer
* wxGraphicsRenderer::GetCairoRenderer()
2593 return &gs_cairoGraphicsRenderer
;
2596 #else // !wxUSE_CAIRO
2598 wxGraphicsRenderer
* wxGraphicsRenderer::GetCairoRenderer()
2603 #endif // wxUSE_CAIRO/!wxUSE_CAIRO
2605 // MSW and OS X have their own native default renderers, but the other ports
2606 // use Cairo by default
2607 #if !(defined(__WXMSW__) || defined(__WXOSX__))
2608 wxGraphicsRenderer
* wxGraphicsRenderer::GetDefaultRenderer()
2610 return GetCairoRenderer();
2612 #endif // !(__WXMSW__ || __WXOSX__)
2614 #endif // wxUSE_GRAPHICS_CONTEXT