src/generic/graphicc.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/graphicc.cpp
   3 // Purpose:     cairo device context class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     2006-10-03
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2006 Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #ifdef __BORLANDC__
  15     #pragma hdrstop
  16 #endif
  17
  18 #if wxUSE_GRAPHICS_CONTEXT
  19
  20 #include "wx/graphics.h"
  21
  22 #if wxUSE_CAIRO
  23
  24 #include "wx/cairo.h"
  25
  26 #ifndef WX_PRECOMP
  27     #include "wx/bitmap.h"
  28     #include "wx/icon.h"
  29     #include "wx/dcclient.h"
  30     #include "wx/dcmemory.h"
  31     #include "wx/dcprint.h"
  32     #ifdef __WXGTK__
  33         #include "wx/window.h"
  34     #endif
  35 #endif
  36
  37 #include "wx/private/graphics.h"
  38 #include "wx/rawbmp.h"
  39 #include "wx/vector.h"
  40
  41 using namespace std;
  42
  43 //-----------------------------------------------------------------------------
  44 // device context implementation
  45 //
  46 // more and more of the dc functionality should be implemented by calling
  47 // the appropricate wxCairoContext, but we will have to do that step by step
  48 // also coordinate conversions should be moved to native matrix ops
  49 //-----------------------------------------------------------------------------
  50
  51 // we always stock two context states, one at entry, to be able to preserve the
  52 // state we were called with, the other one after changing to HI Graphics orientation
  53 // (this one is used for getting back clippings etc)
  54
  55 //-----------------------------------------------------------------------------
  56 // wxGraphicsPath implementation
  57 //-----------------------------------------------------------------------------
  58
  59 // TODO remove this dependency (gdiplus needs the macros)
  60
  61 #ifndef max
  62 #define max(a,b)            (((a) > (b)) ? (a) : (b))
  63 #endif
  64
  65 #ifndef min
  66 #define min(a,b)            (((a) < (b)) ? (a) : (b))
  67 #endif
  68
  69 #include <cairo.h>
  70 #ifdef __WXMSW__
  71 #include <cairo-win32.h>
  72 #endif
  73
  74 #ifdef __WXGTK__
  75 #include <gtk/gtk.h>
  76 #include "wx/fontutil.h"
  77 #include "wx/gtk/dc.h"
  78 #endif
  79
  80 #ifdef __WXMSW__
  81 #include <cairo-win32.h>
  82 #endif
  83
  84 #ifdef __WXMAC__
  85 #include "wx/osx/private.h"
  86 #include <cairo-quartz.h>
  87 #include <cairo-atsui.h>
  88 #endif
  89
  90 class WXDLLIMPEXP_CORE wxCairoPathData : public wxGraphicsPathData
  91 {
  92 public :
  93     wxCairoPathData(wxGraphicsRenderer* renderer, cairo_t* path = NULL);
  94     ~wxCairoPathData();
  95
  96     virtual wxGraphicsObjectRefData *Clone() const;
  97
  98     //
  99     // These are the path primitives from which everything else can be constructed
 100     //
 101
 102     // begins a new subpath at (x,y)
 103     virtual void MoveToPoint( wxDouble x, wxDouble y );
 104
 105     // adds a straight line from the current point to (x,y)
 106     virtual void AddLineToPoint( wxDouble x, wxDouble y );
 107
 108     // adds a cubic Bezier curve from the current point, using two control points and an end point
 109     virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
 110
 111
 112     // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
 113     virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise ) ;
 114
 115     // gets the last point of the current path, (0,0) if not yet set
 116     virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
 117
 118     // adds another path
 119     virtual void AddPath( const wxGraphicsPathData* path );
 120
 121     // closes the current sub-path
 122     virtual void CloseSubpath();
 123
 124     //
 125     // These are convenience functions which - if not available natively will be assembled
 126     // using the primitives from above
 127     //
 128
 129     /*
 130
 131     // appends a rectangle as a new closed subpath
 132     virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) ;
 133     // appends an ellipsis as a new closed subpath fitting the passed rectangle
 134     virtual void AddEllipsis( wxDouble x, wxDouble y, wxDouble w , wxDouble h ) ;
 135
 136     // 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)
 137     virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )  ;
 138     */
 139
 140     // returns the native path
 141     virtual void * GetNativePath() const ;
 142
 143     // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
 144     virtual void UnGetNativePath(void *p) const;
 145
 146     // transforms each point of this path by the matrix
 147     virtual void Transform( const wxGraphicsMatrixData* matrix ) ;
 148
 149     // gets the bounding box enclosing all points (possibly including control points)
 150     virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const;
 151
 152     virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxWINDING_RULE) const;
 153
 154 private :
 155     cairo_t* m_pathContext;
 156 };
 157
 158 class WXDLLIMPEXP_CORE wxCairoMatrixData : public wxGraphicsMatrixData
 159 {
 160 public :
 161     wxCairoMatrixData(wxGraphicsRenderer* renderer, const cairo_matrix_t* matrix = NULL ) ;
 162     virtual ~wxCairoMatrixData() ;
 163
 164     virtual wxGraphicsObjectRefData *Clone() const ;
 165
 166     // concatenates the matrix
 167     virtual void Concat( const wxGraphicsMatrixData *t );
 168
 169     // sets the matrix to the respective values
 170     virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
 171         wxDouble tx=0.0, wxDouble ty=0.0);
 172
 173     // gets the component valuess of the matrix
 174     virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL,  wxDouble* c=NULL,
 175                      wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const;
 176
 177     // makes this the inverse matrix
 178     virtual void Invert();
 179
 180     // returns true if the elements of the transformation matrix are equal ?
 181     virtual bool IsEqual( const wxGraphicsMatrixData* t) const ;
 182
 183     // return true if this is the identity matrix
 184     virtual bool IsIdentity() const;
 185
 186     //
 187     // transformation
 188     //
 189
 190     // add the translation to this matrix
 191     virtual void Translate( wxDouble dx , wxDouble dy );
 192
 193     // add the scale to this matrix
 194     virtual void Scale( wxDouble xScale , wxDouble yScale );
 195
 196     // add the rotation to this matrix (radians)
 197     virtual void Rotate( wxDouble angle );
 198
 199     //
 200     // apply the transforms
 201     //
 202
 203     // applies that matrix to the point
 204     virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
 205
 206     // applies the matrix except for translations
 207     virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
 208
 209     // returns the native representation
 210     virtual void * GetNativeMatrix() const;
 211 private:
 212     cairo_matrix_t m_matrix ;
 213 } ;
 214
 215 class WXDLLIMPEXP_CORE wxCairoPenData : public wxGraphicsObjectRefData
 216 {
 217 public:
 218     wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen );
 219     ~wxCairoPenData();
 220
 221     void Init();
 222
 223     virtual void Apply( wxGraphicsContext* context );
 224     virtual wxDouble GetWidth() { return m_width; }
 225
 226 private :
 227     double m_width;
 228
 229     double m_red;
 230     double m_green;
 231     double m_blue;
 232     double m_alpha;
 233
 234     cairo_line_cap_t m_cap;
 235     cairo_line_join_t m_join;
 236
 237     int m_count;
 238     const double *m_lengths;
 239     double *m_userLengths;
 240
 241     wxPen m_pen;
 242
 243     wxDECLARE_NO_COPY_CLASS(wxCairoPenData);
 244 };
 245
 246 class WXDLLIMPEXP_CORE wxCairoBrushData : public wxGraphicsObjectRefData
 247 {
 248 public:
 249     wxCairoBrushData( wxGraphicsRenderer* renderer );
 250     wxCairoBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
 251     ~wxCairoBrushData ();
 252
 253     virtual void Apply( wxGraphicsContext* context );
 254
 255     void CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
 256                                    wxDouble x2, wxDouble y2,
 257                                    const wxGraphicsGradientStops& stops);
 258     void CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
 259                                    wxDouble xc, wxDouble yc, wxDouble radius,
 260                                    const wxGraphicsGradientStops& stops);
 261
 262 protected:
 263     virtual void Init();
 264
 265     // common part of Create{Linear,Radial}GradientBrush()
 266     void AddGradientStops(const wxGraphicsGradientStops& stops);
 267
 268 private :
 269     double m_red;
 270     double m_green;
 271     double m_blue;
 272     double m_alpha;
 273
 274     cairo_pattern_t* m_brushPattern;
 275 };
 276
 277 class wxCairoFontData : public wxGraphicsObjectRefData
 278 {
 279 public:
 280     wxCairoFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col );
 281     ~wxCairoFontData();
 282
 283     virtual void Apply( wxGraphicsContext* context );
 284 #ifdef __WXGTK__
 285     const PangoFontDescription* GetFont() const { return m_font; }
 286     bool GetUnderlined() const { return m_underlined; }
 287 #endif
 288 private :
 289     double m_size;
 290     bool m_underlined;
 291     double m_red;
 292     double m_green;
 293     double m_blue;
 294     double m_alpha;
 295 #ifdef __WXMAC__
 296     cairo_font_face_t *m_font;
 297 #elif defined(__WXGTK__)
 298     PangoFontDescription* m_font;
 299 #else
 300     wxCharBuffer m_fontName;
 301     cairo_font_slant_t m_slant;
 302     cairo_font_weight_t m_weight;
 303 #endif
 304 #ifdef __WXMSW__
 305     wxCairoContext( wxGraphicsRenderer* renderer, HDC context );
 306 #endif
 307 };
 308
 309 class wxCairoBitmapData : public wxGraphicsObjectRefData
 310 {
 311 public:
 312     wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp );
 313     wxCairoBitmapData( wxGraphicsRenderer* renderer, cairo_surface_t* bitmap );
 314     ~wxCairoBitmapData();
 315
 316     virtual cairo_surface_t* GetCairoSurface() { return m_surface; }
 317     virtual cairo_pattern_t* GetCairoPattern() { return m_pattern; }
 318     virtual wxSize GetSize() { return wxSize(m_width, m_height); }
 319 private :
 320     cairo_surface_t* m_surface;
 321     cairo_pattern_t* m_pattern;
 322     int m_width;
 323     int m_height;
 324     unsigned char* m_buffer;
 325 };
 326
 327 class WXDLLIMPEXP_CORE wxCairoContext : public wxGraphicsContext
 328 {
 329 public:
 330     wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& dc );
 331     wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& dc );
 332     wxCairoContext( wxGraphicsRenderer* renderer, const wxPrinterDC& dc );
 333 #ifdef __WXGTK__
 334     wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawable );
 335 #endif
 336     wxCairoContext( wxGraphicsRenderer* renderer, cairo_t *context );
 337     wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window);
 338     wxCairoContext();
 339     virtual ~wxCairoContext();
 340
 341     virtual bool ShouldOffset() const
 342     {
 343         int penwidth = 0 ;
 344         if ( !m_pen.IsNull() )
 345         {
 346             penwidth = (int)((wxCairoPenData*)m_pen.GetRefData())->GetWidth();
 347             if ( penwidth == 0 )
 348                 penwidth = 1;
 349         }
 350         return ( penwidth % 2 ) == 1;
 351     }
 352
 353     virtual void Clip( const wxRegion &region );
 354 #ifdef __WXMSW__
 355     cairo_surface_t* m_mswSurface;
 356 #endif
 357
 358     // clips drawings to the rect
 359     virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
 360
 361     // resets the clipping to original extent
 362     virtual void ResetClip();
 363
 364     virtual void * GetNativeContext();
 365
 366     virtual bool SetAntialiasMode(wxAntialiasMode antialias);
 367
 368     virtual bool SetCompositionMode(wxCompositionMode op);
 369
 370     virtual void BeginLayer(wxDouble opacity);
 371
 372     virtual void EndLayer();
 373
 374     virtual void StrokePath( const wxGraphicsPath& p );
 375     virtual void FillPath( const wxGraphicsPath& p , wxPolygonFillMode fillStyle = wxWINDING_RULE );
 376
 377     virtual void Translate( wxDouble dx , wxDouble dy );
 378     virtual void Scale( wxDouble xScale , wxDouble yScale );
 379     virtual void Rotate( wxDouble angle );
 380
 381     // concatenates this transform with the current transform of this context
 382     virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
 383
 384     // sets the transform of this context
 385     virtual void SetTransform( const wxGraphicsMatrix& matrix );
 386
 387     // gets the matrix of this context
 388     virtual wxGraphicsMatrix GetTransform() const;
 389
 390     virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
 391     virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
 392     virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
 393     virtual void PushState();
 394     virtual void PopState();
 395
 396     virtual void GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
 397                                 wxDouble *descent, wxDouble *externalLeading ) const;
 398     virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
 399
 400 protected:
 401     virtual void DoDrawText( const wxString &str, wxDouble x, wxDouble y );
 402
 403 private:
 404     void Init(cairo_t *context);
 405
 406     cairo_t* m_context;
 407
 408     wxVector<float> m_layerOpacities;
 409
 410     wxDECLARE_NO_COPY_CLASS(wxCairoContext);
 411 };
 412
 413 //-----------------------------------------------------------------------------
 414 // wxCairoPenData implementation
 415 //-----------------------------------------------------------------------------
 416
 417 wxCairoPenData::~wxCairoPenData()
 418 {
 419     delete[] m_userLengths;
 420 }
 421
 422 void wxCairoPenData::Init()
 423 {
 424     m_lengths = NULL;
 425     m_userLengths = NULL;
 426     m_width = 0;
 427     m_count = 0;
 428 }
 429
 430 wxCairoPenData::wxCairoPenData( wxGraphicsRenderer* renderer, const wxPen &pen )
 431 : wxGraphicsObjectRefData(renderer)
 432 {
 433     Init();
 434     m_pen = pen;
 435     m_width = m_pen.GetWidth();
 436     if (m_width <= 0.0)
 437         m_width = 0.1;
 438
 439     m_red = m_pen.GetColour().Red()/255.0;
 440     m_green = m_pen.GetColour().Green()/255.0;
 441     m_blue = m_pen.GetColour().Blue()/255.0;
 442     m_alpha = m_pen.GetColour().Alpha()/255.0;
 443
 444     switch ( m_pen.GetCap() )
 445     {
 446     case wxCAP_ROUND :
 447         m_cap = CAIRO_LINE_CAP_ROUND;
 448         break;
 449
 450     case wxCAP_PROJECTING :
 451         m_cap = CAIRO_LINE_CAP_SQUARE;
 452         break;
 453
 454     case wxCAP_BUTT :
 455         m_cap = CAIRO_LINE_CAP_BUTT;
 456         break;
 457
 458     default :
 459         m_cap = CAIRO_LINE_CAP_BUTT;
 460         break;
 461     }
 462
 463     switch ( m_pen.GetJoin() )
 464     {
 465     case wxJOIN_BEVEL :
 466         m_join = CAIRO_LINE_JOIN_BEVEL;
 467         break;
 468
 469     case wxJOIN_MITER :
 470         m_join = CAIRO_LINE_JOIN_MITER;
 471         break;
 472
 473     case wxJOIN_ROUND :
 474         m_join = CAIRO_LINE_JOIN_ROUND;
 475         break;
 476
 477     default :
 478         m_join = CAIRO_LINE_JOIN_MITER;
 479         break;
 480     }
 481
 482     const double dashUnit = m_width < 1.0 ? 1.0 : m_width;
 483     const double dotted[] =
 484     {
 485         dashUnit , dashUnit + 2.0
 486     };
 487     static const double short_dashed[] =
 488     {
 489         9.0 , 6.0
 490     };
 491     static const double dashed[] =
 492     {
 493         19.0 , 9.0
 494     };
 495     static const double dotted_dashed[] =
 496     {
 497         9.0 , 6.0 , 3.0 , 3.0
 498     };
 499
 500     switch ( m_pen.GetStyle() )
 501     {
 502     case wxPENSTYLE_SOLID :
 503         break;
 504
 505     case wxPENSTYLE_DOT :
 506         m_count = WXSIZEOF(dotted);
 507         m_userLengths = new double[ m_count ] ;
 508         memcpy( m_userLengths, dotted, sizeof(dotted) );
 509         m_lengths = m_userLengths;
 510         break;
 511
 512     case wxPENSTYLE_LONG_DASH :
 513         m_lengths = dashed ;
 514         m_count = WXSIZEOF(dashed);
 515         break;
 516
 517     case wxPENSTYLE_SHORT_DASH :
 518         m_lengths = short_dashed ;
 519         m_count = WXSIZEOF(short_dashed);
 520         break;
 521
 522     case wxPENSTYLE_DOT_DASH :
 523         m_lengths = dotted_dashed ;
 524         m_count = WXSIZEOF(dotted_dashed);
 525         break;
 526
 527     case wxPENSTYLE_USER_DASH :
 528         {
 529             wxDash *wxdashes ;
 530             m_count = m_pen.GetDashes( &wxdashes ) ;
 531             if ((wxdashes != NULL) && (m_count > 0))
 532             {
 533                 m_userLengths = new double[m_count] ;
 534                 for ( int i = 0 ; i < m_count ; ++i )
 535                 {
 536                     m_userLengths[i] = wxdashes[i] * dashUnit ;
 537
 538                     if ( i % 2 == 1 && m_userLengths[i] < dashUnit + 2.0 )
 539                         m_userLengths[i] = dashUnit + 2.0 ;
 540                     else if ( i % 2 == 0 && m_userLengths[i] < dashUnit )
 541                         m_userLengths[i] = dashUnit ;
 542                 }
 543             }
 544             m_lengths = m_userLengths ;
 545         }
 546         break;
 547     case wxPENSTYLE_STIPPLE :
 548         {
 549             /*
 550             wxBitmap* bmp = pen.GetStipple();
 551             if ( bmp && bmp->Ok() )
 552             {
 553             wxDELETE( m_penImage );
 554             wxDELETE( m_penBrush );
 555             m_penImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE());
 556             m_penBrush = new TextureBrush(m_penImage);
 557             m_pen->SetBrush( m_penBrush );
 558             }
 559             */
 560         }
 561         break;
 562     default :
 563         if ( m_pen.GetStyle() >= wxPENSTYLE_FIRST_HATCH
 564             && m_pen.GetStyle() <= wxPENSTYLE_LAST_HATCH )
 565         {
 566             /*
 567             wxDELETE( m_penBrush );
 568             HatchStyle style = HatchStyleHorizontal;
 569             switch( pen.GetStyle() )
 570             {
 571             case wxPENSTYLE_BDIAGONAL_HATCH :
 572             style = HatchStyleBackwardDiagonal;
 573             break ;
 574             case wxPENSTYLE_CROSSDIAG_HATCH :
 575             style = HatchStyleDiagonalCross;
 576             break ;
 577             case wxPENSTYLE_FDIAGONAL_HATCH :
 578             style = HatchStyleForwardDiagonal;
 579             break ;
 580             case wxPENSTYLE_CROSS_HATCH :
 581             style = HatchStyleCross;
 582             break ;
 583             case wxPENSTYLE_HORIZONTAL_HATCH :
 584             style = HatchStyleHorizontal;
 585             break ;
 586             case wxPENSTYLE_VERTICAL_HATCH :
 587             style = HatchStyleVertical;
 588             break ;
 589
 590             }
 591             m_penBrush = new HatchBrush(style,Color( pen.GetColour().Alpha() , pen.GetColour().Red() ,
 592             pen.GetColour().Green() , pen.GetColour().Blue() ), Color.Transparent );
 593             m_pen->SetBrush( m_penBrush )
 594             */
 595         }
 596         break;
 597     }
 598 }
 599
 600 void wxCairoPenData::Apply( wxGraphicsContext* context )
 601 {
 602     cairo_t * ctext = (cairo_t*) context->GetNativeContext();
 603     cairo_set_line_width(ctext,m_width);
 604     cairo_set_source_rgba(ctext,m_red,m_green, m_blue,m_alpha);
 605     cairo_set_line_cap(ctext,m_cap);
 606     cairo_set_line_join(ctext,m_join);
 607     cairo_set_dash(ctext,(double*)m_lengths,m_count,0.0);
 608 }
 609
 610 //-----------------------------------------------------------------------------
 611 // wxCairoBrushData implementation
 612 //-----------------------------------------------------------------------------
 613
 614 wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer )
 615   : wxGraphicsObjectRefData( renderer )
 616 {
 617     Init();
 618 }
 619
 620 wxCairoBrushData::wxCairoBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush )
 621   : wxGraphicsObjectRefData(renderer)
 622 {
 623     Init();
 624
 625     m_red = brush.GetColour().Red()/255.0;
 626     m_green = brush.GetColour().Green()/255.0;
 627     m_blue = brush.GetColour().Blue()/255.0;
 628     m_alpha = brush.GetColour().Alpha()/255.0;
 629     /*
 630     if ( brush.GetStyle() == wxBRUSHSTYLE_SOLID)
 631     {
 632     m_brush = new SolidBrush( Color( brush.GetColour().Alpha() , brush.GetColour().Red() ,
 633     brush.GetColour().Green() , brush.GetColour().Blue() ) );
 634     }
 635     else if ( brush.IsHatch() )
 636     {
 637     HatchStyle style = HatchStyleHorizontal;
 638     switch( brush.GetStyle() )
 639     {
 640     case wxBRUSHSTYLE_BDIAGONAL_HATCH :
 641     style = HatchStyleBackwardDiagonal;
 642     break ;
 643     case wxBRUSHSTYLE_CROSSDIAG_HATCH :
 644     style = HatchStyleDiagonalCross;
 645     break ;
 646     case wxBRUSHSTYLE_FDIAGONAL_HATCH :
 647     style = HatchStyleForwardDiagonal;
 648     break ;
 649     case wxBRUSHSTYLE_CROSS_HATCH :
 650     style = HatchStyleCross;
 651     break ;
 652     case wxBRUSHSTYLE_HORIZONTAL_HATCH :
 653     style = HatchStyleHorizontal;
 654     break ;
 655     case wxBRUSHSTYLE_VERTICAL_HATCH :
 656     style = HatchStyleVertical;
 657     break ;
 658
 659     }
 660     m_brush = new HatchBrush(style,Color( brush.GetColour().Alpha() , brush.GetColour().Red() ,
 661     brush.GetColour().Green() , brush.GetColour().Blue() ), Color.Transparent );
 662     }
 663     else
 664     {
 665     wxBitmap* bmp = brush.GetStipple();
 666     if ( bmp && bmp->Ok() )
 667     {
 668     wxDELETE( m_brushImage );
 669     m_brushImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE());
 670     m_brush = new TextureBrush(m_brushImage);
 671     }
 672     }
 673     */
 674 }
 675
 676 wxCairoBrushData::~wxCairoBrushData ()
 677 {
 678     if (m_brushPattern)
 679         cairo_pattern_destroy(m_brushPattern);
 680 }
 681
 682 void wxCairoBrushData::Apply( wxGraphicsContext* context )
 683 {
 684     cairo_t * ctext = (cairo_t*) context->GetNativeContext();
 685     if ( m_brushPattern )
 686     {
 687         cairo_set_source(ctext,m_brushPattern);
 688     }
 689     else
 690     {
 691         cairo_set_source_rgba(ctext,m_red,m_green, m_blue,m_alpha);
 692     }
 693 }
 694
 695 void wxCairoBrushData::AddGradientStops(const wxGraphicsGradientStops& stops)
 696 {
 697     // loop over all the stops, they include the beginning and ending ones
 698     const unsigned numStops = stops.GetCount();
 699     for ( unsigned n = 0; n < numStops; n++ )
 700     {
 701         const wxGraphicsGradientStop stop = stops.Item(n);
 702
 703         const wxColour col = stop.GetColour();
 704
 705         cairo_pattern_add_color_stop_rgba
 706         (
 707             m_brushPattern,
 708             stop.GetPosition(),
 709             col.Red()/255.0,
 710             col.Green()/255.0,
 711             col.Blue()/255.0,
 712             col.Alpha()/255.0
 713         );
 714     }
 715
 716     wxASSERT_MSG(cairo_pattern_status(m_brushPattern) == CAIRO_STATUS_SUCCESS,
 717                  wxT("Couldn't create cairo pattern"));
 718 }
 719
 720 void
 721 wxCairoBrushData::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
 722                                             wxDouble x2, wxDouble y2,
 723                                             const wxGraphicsGradientStops& stops)
 724 {
 725     m_brushPattern = cairo_pattern_create_linear(x1,y1,x2,y2);
 726
 727     AddGradientStops(stops);
 728 }
 729
 730 void
 731 wxCairoBrushData::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
 732                                             wxDouble xc, wxDouble yc,
 733                                             wxDouble radius,
 734                                             const wxGraphicsGradientStops& stops)
 735 {
 736     m_brushPattern = cairo_pattern_create_radial(xo,yo,0.0,xc,yc,radius);
 737
 738     AddGradientStops(stops);
 739 }
 740
 741 void wxCairoBrushData::Init()
 742 {
 743     m_brushPattern = NULL;
 744 }
 745
 746 //-----------------------------------------------------------------------------
 747 // wxCairoFontData implementation
 748 //-----------------------------------------------------------------------------
 749
 750 wxCairoFontData::wxCairoFontData( wxGraphicsRenderer* renderer, const wxFont &font,
 751                          const wxColour& col ) : wxGraphicsObjectRefData(renderer)
 752 {
 753     m_red = col.Red()/255.0;
 754     m_green = col.Green()/255.0;
 755     m_blue = col.Blue()/255.0;
 756     m_alpha = col.Alpha()/255.0;
 757     m_size = font.GetPointSize();
 758     m_underlined = font.GetUnderlined();
 759
 760 #ifdef __WXMAC__
 761     m_font = cairo_quartz_font_face_create_for_cgfont( font.OSXGetCGFont() );
 762 #elif defined(__WXGTK__)
 763     m_font = pango_font_description_copy( font.GetNativeFontInfo()->description );
 764 #else
 765     m_fontName = font.GetFaceName().mb_str(wxConvUTF8);
 766     m_slant = font.GetStyle() == wxFONTSTYLE_ITALIC ? CAIRO_FONT_SLANT_ITALIC:CAIRO_FONT_SLANT_NORMAL;
 767     m_weight = font.GetWeight() == wxFONTWEIGHT_BOLD ? CAIRO_FONT_WEIGHT_BOLD:CAIRO_FONT_WEIGHT_NORMAL;
 768 #endif
 769 }
 770
 771 wxCairoFontData::~wxCairoFontData()
 772 {
 773 #ifdef __WXMAC__
 774     cairo_font_face_destroy( m_font );
 775 #elif defined(__WXGTK__)
 776     pango_font_description_free( m_font );
 777 #else
 778 #endif
 779 }
 780
 781 void wxCairoFontData::Apply( wxGraphicsContext* context )
 782 {
 783     cairo_t * ctext = (cairo_t*) context->GetNativeContext();
 784     cairo_set_source_rgba(ctext,m_red,m_green, m_blue,m_alpha);
 785 #ifdef __WXGTK__
 786     // the rest is done using Pango layouts
 787 #elif defined(__WXMAC__)
 788     cairo_set_font_face(ctext, m_font);
 789     cairo_set_font_size(ctext, m_size );
 790 #else
 791     cairo_select_font_face(ctext, m_fontName, m_slant, m_weight );
 792     cairo_set_font_size(ctext, m_size );
 793 #endif
 794 }
 795
 796 //-----------------------------------------------------------------------------
 797 // wxCairoPathData implementation
 798 //-----------------------------------------------------------------------------
 799
 800 wxCairoPathData::wxCairoPathData( wxGraphicsRenderer* renderer, cairo_t* pathcontext)
 801     : wxGraphicsPathData(renderer)
 802 {
 803     if (pathcontext)
 804     {
 805         m_pathContext = pathcontext;
 806     }
 807     else
 808     {
 809         cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,1,1);
 810         m_pathContext = cairo_create(surface);
 811         cairo_surface_destroy (surface);
 812     }
 813 }
 814
 815 wxCairoPathData::~wxCairoPathData()
 816 {
 817     cairo_destroy(m_pathContext);
 818 }
 819
 820 wxGraphicsObjectRefData *wxCairoPathData::Clone() const
 821 {
 822     cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,1,1);
 823     cairo_t* pathcontext = cairo_create(surface);
 824     cairo_surface_destroy (surface);
 825
 826     cairo_path_t* path = cairo_copy_path(m_pathContext);
 827     cairo_append_path(pathcontext, path);
 828     cairo_path_destroy(path);
 829     return new wxCairoPathData( GetRenderer() ,pathcontext);
 830 }
 831
 832
 833 void* wxCairoPathData::GetNativePath() const
 834 {
 835     return cairo_copy_path(m_pathContext) ;
 836 }
 837
 838 void wxCairoPathData::UnGetNativePath(void *p) const
 839 {
 840     cairo_path_destroy((cairo_path_t*)p);
 841 }
 842
 843 //
 844 // The Primitives
 845 //
 846
 847 void wxCairoPathData::MoveToPoint( wxDouble x , wxDouble y )
 848 {
 849     cairo_move_to(m_pathContext,x,y);
 850 }
 851
 852 void wxCairoPathData::AddLineToPoint( wxDouble x , wxDouble y )
 853 {
 854     cairo_line_to(m_pathContext,x,y);
 855 }
 856
 857 void wxCairoPathData::AddPath( const wxGraphicsPathData* path )
 858 {
 859     cairo_path_t* p = (cairo_path_t*)path->GetNativePath();
 860     cairo_append_path(m_pathContext, p);
 861     UnGetNativePath(p);
 862 }
 863
 864 void wxCairoPathData::CloseSubpath()
 865 {
 866     cairo_close_path(m_pathContext);
 867 }
 868
 869 void wxCairoPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
 870 {
 871     cairo_curve_to(m_pathContext,cx1,cy1,cx2,cy2,x,y);
 872 }
 873
 874 // gets the last point of the current path, (0,0) if not yet set
 875 void wxCairoPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
 876 {
 877     double dx,dy;
 878     cairo_get_current_point(m_pathContext,&dx,&dy);
 879     if (x)
 880         *x = dx;
 881     if (y)
 882         *y = dy;
 883 }
 884
 885 void wxCairoPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, double startAngle, double endAngle, bool clockwise )
 886 {
 887     // as clockwise means positive in our system (y pointing downwards)
 888     // TODO make this interpretation dependent of the
 889     // real device trans
 890     if ( clockwise||(endAngle-startAngle)>=2*M_PI)
 891         cairo_arc(m_pathContext,x,y,r,startAngle,endAngle);
 892     else
 893         cairo_arc_negative(m_pathContext,x,y,r,startAngle,endAngle);
 894 }
 895
 896 // transforms each point of this path by the matrix
 897 void wxCairoPathData::Transform( const wxGraphicsMatrixData* matrix )
 898 {
 899     // as we don't have a true path object, we have to apply the inverse
 900     // matrix to the context
 901     cairo_matrix_t m = *((cairo_matrix_t*) matrix->GetNativeMatrix());
 902     cairo_matrix_invert( &m );
 903     cairo_transform(m_pathContext,&m);
 904 }
 905
 906 // gets the bounding box enclosing all points (possibly including control points)
 907 void wxCairoPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
 908 {
 909     double x1,y1,x2,y2;
 910
 911     cairo_stroke_extents( m_pathContext, &x1, &y1, &x2, &y2 );
 912     if ( x2 < x1 )
 913     {
 914         *x = x2;
 915         *w = x1-x2;
 916     }
 917     else
 918     {
 919         *x = x1;
 920         *w = x2-x1;
 921     }
 922
 923     if( y2 < y1 )
 924     {
 925         *y = y2;
 926         *h = y1-y2;
 927     }
 928     else
 929     {
 930         *y = y1;
 931         *h = y2-y1;
 932     }
 933 }
 934
 935 bool wxCairoPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle ) const
 936 {
 937     cairo_set_fill_rule(m_pathContext,fillStyle==wxODDEVEN_RULE ? CAIRO_FILL_RULE_EVEN_ODD : CAIRO_FILL_RULE_WINDING);
 938     return cairo_in_fill( m_pathContext, x, y) != 0;
 939 }
 940
 941 //-----------------------------------------------------------------------------
 942 // wxCairoMatrixData implementation
 943 //-----------------------------------------------------------------------------
 944
 945 wxCairoMatrixData::wxCairoMatrixData(wxGraphicsRenderer* renderer, const cairo_matrix_t* matrix )
 946     : wxGraphicsMatrixData(renderer)
 947 {
 948     if ( matrix )
 949         m_matrix = *matrix;
 950 }
 951
 952 wxCairoMatrixData::~wxCairoMatrixData()
 953 {
 954     // nothing to do
 955 }
 956
 957 wxGraphicsObjectRefData *wxCairoMatrixData::Clone() const
 958 {
 959     return new wxCairoMatrixData(GetRenderer(),&m_matrix);
 960 }
 961
 962 // concatenates the matrix
 963 void wxCairoMatrixData::Concat( const wxGraphicsMatrixData *t )
 964 {
 965     cairo_matrix_multiply( &m_matrix, &m_matrix, (cairo_matrix_t*) t->GetNativeMatrix());
 966 }
 967
 968 // sets the matrix to the respective values
 969 void wxCairoMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
 970                         wxDouble tx, wxDouble ty)
 971 {
 972     cairo_matrix_init( &m_matrix, a, b, c, d, tx, ty);
 973 }
 974
 975 // gets the component valuess of the matrix
 976 void wxCairoMatrixData::Get(wxDouble* a, wxDouble* b,  wxDouble* c,
 977                             wxDouble* d, wxDouble* tx, wxDouble* ty) const
 978 {
 979     if (a)  *a = m_matrix.xx;
 980     if (b)  *b = m_matrix.yx;
 981     if (c)  *c = m_matrix.xy;
 982     if (d)  *d = m_matrix.yy;
 983     if (tx) *tx= m_matrix.x0;
 984     if (ty) *ty= m_matrix.y0;
 985 }
 986
 987 // makes this the inverse matrix
 988 void wxCairoMatrixData::Invert()
 989 {
 990     cairo_matrix_invert( &m_matrix );
 991 }
 992
 993 // returns true if the elements of the transformation matrix are equal ?
 994 bool wxCairoMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
 995 {
 996     const cairo_matrix_t* tm = (cairo_matrix_t*) t->GetNativeMatrix();
 997     return (
 998         m_matrix.xx == tm->xx &&
 999         m_matrix.yx == tm->yx &&
1000         m_matrix.xy == tm->xy &&
1001         m_matrix.yy == tm->yy &&
1002         m_matrix.x0 == tm->x0 &&
1003         m_matrix.y0 == tm->y0 ) ;
1004 }
1005
1006 // return true if this is the identity matrix
1007 bool wxCairoMatrixData::IsIdentity() const
1008 {
1009     return ( m_matrix.xx == 1 && m_matrix.yy == 1 &&
1010         m_matrix.yx == 0 && m_matrix.xy == 0 && m_matrix.x0 == 0 && m_matrix.y0 == 0);
1011 }
1012
1013 //
1014 // transformation
1015 //
1016
1017 // add the translation to this matrix
1018 void wxCairoMatrixData::Translate( wxDouble dx , wxDouble dy )
1019 {
1020     cairo_matrix_translate( &m_matrix, dx, dy) ;
1021 }
1022
1023 // add the scale to this matrix
1024 void wxCairoMatrixData::Scale( wxDouble xScale , wxDouble yScale )
1025 {
1026     cairo_matrix_scale( &m_matrix, xScale, yScale) ;
1027 }
1028
1029 // add the rotation to this matrix (radians)
1030 void wxCairoMatrixData::Rotate( wxDouble angle )
1031 {
1032     cairo_matrix_rotate( &m_matrix, angle) ;
1033 }
1034
1035 //
1036 // apply the transforms
1037 //
1038
1039 // applies that matrix to the point
1040 void wxCairoMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const
1041 {
1042     double lx = *x, ly = *y ;
1043     cairo_matrix_transform_point( &m_matrix, &lx, &ly);
1044     *x = lx;
1045     *y = ly;
1046 }
1047
1048 // applies the matrix except for translations
1049 void wxCairoMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const
1050 {
1051     double lx = *dx, ly = *dy ;
1052     cairo_matrix_transform_distance( &m_matrix, &lx, &ly);
1053     *dx = lx;
1054     *dy = ly;
1055 }
1056
1057 // returns the native representation
1058 void * wxCairoMatrixData::GetNativeMatrix() const
1059 {
1060     return (void*) &m_matrix;
1061 }
1062
1063 // wxCairoBitmap implementation
1064 //-----------------------------------------------------------------------------
1065
1066 wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, cairo_surface_t* bitmap ) :
1067     wxGraphicsObjectRefData( renderer )
1068 {
1069     m_surface = bitmap;
1070     m_pattern = cairo_pattern_create_for_surface(m_surface);
1071 }
1072
1073 wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp ) : wxGraphicsObjectRefData( renderer )
1074 {
1075     wxCHECK_RET( bmp.IsOk(), wxT("Invalid bitmap in wxCairoContext::DrawBitmap"));
1076
1077 #ifdef wxHAS_RAW_BITMAP
1078     int bw = m_width = bmp.GetWidth();
1079     int bh = m_height = bmp.GetHeight();
1080     wxBitmap bmpSource = bmp;  // we need a non-const instance
1081     m_buffer = new unsigned char[bw*bh*4];
1082     wxUint32* data = (wxUint32*)m_buffer;
1083
1084     // Create a surface object and copy the bitmap pixel data to it.  if the
1085     // image has alpha (or a mask represented as alpha) then we'll use a
1086     // different format and iterator than if it doesn't...
1087     if (bmpSource.HasAlpha() || bmpSource.GetMask())
1088     {
1089         m_surface = cairo_image_surface_create_for_data(
1090             m_buffer, CAIRO_FORMAT_ARGB32, bw, bh, bw*4);
1091         wxAlphaPixelData pixData(bmpSource, wxPoint(0,0), wxSize(bw, bh));
1092         wxCHECK_RET( pixData, wxT("Failed to gain raw access to bitmap data."));
1093
1094         wxAlphaPixelData::Iterator p(pixData);
1095         for (int y=0; y<bh; y++)
1096         {
1097             wxAlphaPixelData::Iterator rowStart = p;
1098             for (int x=0; x<bw; x++)
1099             {
1100                 // Each pixel in CAIRO_FORMAT_ARGB32 is a 32-bit quantity,
1101                 // with alpha in the upper 8 bits, then red, then green, then
1102                 // blue. The 32-bit quantities are stored native-endian.
1103                 // Pre-multiplied alpha is used.
1104                 unsigned char alpha = p.Alpha();
1105                 if (alpha == 0)
1106                     *data = 0;
1107                 else
1108                     *data = ( alpha                      << 24
1109                               | (p.Red() * alpha/255)    << 16
1110                               | (p.Green() * alpha/255)  <<  8
1111                               | (p.Blue() * alpha/255) );
1112                 ++data;
1113                 ++p;
1114             }
1115             p = rowStart;
1116             p.OffsetY(pixData, 1);
1117         }
1118     }
1119     else  // no alpha
1120     {
1121         m_surface = cairo_image_surface_create_for_data(
1122             m_buffer, CAIRO_FORMAT_RGB24, bw, bh, bw*4);
1123         wxNativePixelData pixData(bmpSource, wxPoint(0,0), wxSize(bw, bh));
1124         wxCHECK_RET( pixData, wxT("Failed to gain raw access to bitmap data."));
1125
1126         wxNativePixelData::Iterator p(pixData);
1127         for (int y=0; y<bh; y++)
1128         {
1129             wxNativePixelData::Iterator rowStart = p;
1130             for (int x=0; x<bw; x++)
1131             {
1132                 // Each pixel in CAIRO_FORMAT_RGB24 is a 32-bit quantity, with
1133                 // the upper 8 bits unused. Red, Green, and Blue are stored in
1134                 // the remaining 24 bits in that order.  The 32-bit quantities
1135                 // are stored native-endian.
1136                 *data = ( p.Red() << 16 | p.Green() << 8 | p.Blue() );
1137                 ++data;
1138                 ++p;
1139             }
1140             p = rowStart;
1141             p.OffsetY(pixData, 1);
1142         }
1143     }
1144     m_pattern = cairo_pattern_create_for_surface(m_surface);
1145 #endif // wxHAS_RAW_BITMAP
1146 }
1147
1148 wxCairoBitmapData::~wxCairoBitmapData()
1149 {
1150     if (m_pattern)
1151         cairo_pattern_destroy(m_pattern);
1152
1153     if (m_surface)
1154         cairo_surface_destroy(m_surface);
1155
1156     delete [] m_buffer;
1157 }
1158
1159
1160
1161 //-----------------------------------------------------------------------------
1162 // wxCairoContext implementation
1163 //-----------------------------------------------------------------------------
1164
1165 class wxCairoOffsetHelper
1166 {
1167 public :
1168     wxCairoOffsetHelper( cairo_t* ctx , bool offset )
1169     {
1170         m_ctx = ctx;
1171         m_offset = offset;
1172         if ( m_offset )
1173              cairo_translate( m_ctx, 0.5, 0.5 );
1174     }
1175     ~wxCairoOffsetHelper( )
1176     {
1177         if ( m_offset )
1178             cairo_translate( m_ctx, -0.5, -0.5 );
1179     }
1180 public :
1181     cairo_t* m_ctx;
1182     bool m_offset;
1183 } ;
1184
1185 wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxPrinterDC& dc )
1186 : wxGraphicsContext(renderer)
1187 {
1188 #ifdef __WXGTK20__
1189     const wxDCImpl *impl = dc.GetImpl();
1190     Init( (cairo_t*) impl->GetCairoContext() );
1191
1192     wxPoint org = dc.GetDeviceOrigin();
1193     cairo_translate( m_context, org.x, org.y );
1194
1195     double sx,sy;
1196     dc.GetUserScale( &sx, &sy );
1197     cairo_scale( m_context, sx, sy );
1198
1199     org = dc.GetLogicalOrigin();
1200     cairo_translate( m_context, -org.x, -org.y );
1201 #endif
1202 }
1203
1204 wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& dc )
1205 : wxGraphicsContext(renderer)
1206 {
1207 #ifdef __WXGTK20__
1208     wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
1209     Init( gdk_cairo_create( impldc->GetGDKWindow() ) );
1210
1211 #if 0
1212     wxGraphicsMatrix matrix = CreateMatrix();
1213
1214     wxPoint org = dc.GetDeviceOrigin();
1215     matrix.Translate( org.x, org.y );
1216
1217     org = dc.GetLogicalOrigin();
1218     matrix.Translate( -org.x, -org.y );
1219
1220     double sx,sy;
1221     dc.GetUserScale( &sx, &sy );
1222     matrix.Scale( sx, sy );
1223
1224     ConcatTransform( matrix );
1225 #endif
1226 #endif
1227
1228 #ifdef __WXMAC__
1229     int width, height;
1230     dc.GetSize( &width, &height );
1231     CGContextRef cgcontext = (CGContextRef)dc.GetWindow()->MacGetCGContextRef();
1232     cairo_surface_t* surface = cairo_quartz_surface_create_for_cg_context(cgcontext, width, height);
1233     Init( cairo_create( surface ) );
1234     cairo_surface_destroy( surface );
1235 #endif
1236 }
1237
1238 wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& dc )
1239 : wxGraphicsContext(renderer)
1240 {
1241 #ifdef __WXGTK20__
1242     wxGTKDCImpl *impldc = (wxGTKDCImpl*) dc.GetImpl();
1243     Init( gdk_cairo_create( impldc->GetGDKWindow() ) );
1244
1245 #if 0
1246     wxGraphicsMatrix matrix = CreateMatrix();
1247
1248     wxPoint org = dc.GetDeviceOrigin();
1249     matrix.Translate( org.x, org.y );
1250
1251     org = dc.GetLogicalOrigin();
1252     matrix.Translate( -org.x, -org.y );
1253
1254     double sx,sy;
1255     dc.GetUserScale( &sx, &sy );
1256     matrix.Scale( sx, sy );
1257
1258     ConcatTransform( matrix );
1259 #endif
1260 #endif
1261
1262 #ifdef __WXMAC__
1263     int width, height;
1264     dc.GetSize( &width, &height );
1265     CGContextRef cgcontext = (CGContextRef)dc.GetWindow()->MacGetCGContextRef();
1266     cairo_surface_t* surface = cairo_quartz_surface_create_for_cg_context(cgcontext, width, height);
1267     Init( cairo_create( surface ) );
1268     cairo_surface_destroy( surface );
1269 #endif
1270 }
1271
1272 #ifdef __WXGTK20__
1273 wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawable )
1274 : wxGraphicsContext(renderer)
1275 {
1276     Init( gdk_cairo_create( drawable ) );
1277 }
1278 #endif
1279
1280 #ifdef __WXMSW__
1281 wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, HDC handle )
1282 : wxGraphicsContext(renderer)
1283 {
1284     m_mswSurface = cairo_win32_surface_create(handle);
1285     m_context = cairo_create(m_mswSurface);
1286     PushState();
1287     PushState();
1288 }
1289 #endif
1290
1291
1292 wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, cairo_t *context )
1293 : wxGraphicsContext(renderer)
1294 {
1295     Init( context );
1296 }
1297
1298 wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window)
1299 : wxGraphicsContext(renderer)
1300 {
1301 #ifdef __WXGTK__
1302     // something along these lines (copied from dcclient)
1303
1304     // Some controls don't have m_wxwindow - like wxStaticBox, but the user
1305     // code should still be able to create wxClientDCs for them, so we will
1306     // use the parent window here then.
1307     if (window->m_wxwindow == NULL)
1308     {
1309         window = window->GetParent();
1310     }
1311
1312     wxASSERT_MSG( window->m_wxwindow, wxT("wxCairoContext needs a widget") );
1313
1314     Init(gdk_cairo_create(window->GTKGetDrawingWindow()));
1315 #endif
1316 }
1317
1318 wxCairoContext::~wxCairoContext()
1319 {
1320     if ( m_context )
1321     {
1322         PopState();
1323 #ifdef __WXMSW__
1324     m_mswSurface = cairo_win32_surface_create((HDC)window->GetHandle());
1325     m_context = cairo_create(m_mswSurface);
1326 #endif
1327         PopState();
1328         cairo_destroy(m_context);
1329     }
1330 #ifdef __WXMSW__
1331     if ( m_mswSurface )
1332         cairo_surface_destroy(m_mswSurface);
1333 #endif
1334 }
1335
1336 void wxCairoContext::Init(cairo_t *context)
1337 {
1338     m_context = context ;
1339     PushState();
1340     PushState();
1341 }
1342
1343
1344 void wxCairoContext::Clip( const wxRegion& region )
1345 {
1346     // Create a path with all the rectangles in the region
1347     wxGraphicsPath path = GetRenderer()->CreatePath();
1348     wxRegionIterator ri(region);
1349     while (ri)
1350     {
1351         path.AddRectangle(ri.GetX(), ri.GetY(), ri.GetW(), ri.GetH());
1352         ++ri;
1353     }
1354
1355     // Put it in the context
1356     cairo_path_t* cp = (cairo_path_t*) path.GetNativePath() ;
1357     cairo_append_path(m_context, cp);
1358
1359     // clip to that path
1360     cairo_clip(m_context);
1361     path.UnGetNativePath(cp);
1362 }
1363
1364 void wxCairoContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1365 {
1366     // Create a path with this rectangle
1367     wxGraphicsPath path = GetRenderer()->CreatePath();
1368     path.AddRectangle(x,y,w,h);
1369
1370     // Put it in the context
1371     cairo_path_t* cp = (cairo_path_t*) path.GetNativePath() ;
1372     cairo_append_path(m_context, cp);
1373
1374     // clip to that path
1375     cairo_clip(m_context);
1376     path.UnGetNativePath(cp);
1377 }
1378
1379 void wxCairoContext::ResetClip()
1380 {
1381     cairo_reset_clip(m_context);
1382 }
1383
1384
1385 void wxCairoContext::StrokePath( const wxGraphicsPath& path )
1386 {
1387     if ( !m_pen.IsNull() )
1388     {
1389         wxCairoOffsetHelper helper( m_context, ShouldOffset() ) ;
1390         cairo_path_t* cp = (cairo_path_t*) path.GetNativePath() ;
1391         cairo_append_path(m_context,cp);
1392         ((wxCairoPenData*)m_pen.GetRefData())->Apply(this);
1393         cairo_stroke(m_context);
1394         path.UnGetNativePath(cp);
1395     }
1396 }
1397
1398 void wxCairoContext::FillPath( const wxGraphicsPath& path , wxPolygonFillMode fillStyle )
1399 {
1400     if ( !m_brush.IsNull() )
1401     {
1402         wxCairoOffsetHelper helper( m_context, ShouldOffset() ) ;
1403         cairo_path_t* cp = (cairo_path_t*) path.GetNativePath() ;
1404         cairo_append_path(m_context,cp);
1405         ((wxCairoBrushData*)m_brush.GetRefData())->Apply(this);
1406         cairo_set_fill_rule(m_context,fillStyle==wxODDEVEN_RULE ? CAIRO_FILL_RULE_EVEN_ODD : CAIRO_FILL_RULE_WINDING);
1407         cairo_fill(m_context);
1408         path.UnGetNativePath(cp);
1409     }
1410 }
1411
1412 void wxCairoContext::Rotate( wxDouble angle )
1413 {
1414     cairo_rotate(m_context,angle);
1415 }
1416
1417 void wxCairoContext::Translate( wxDouble dx , wxDouble dy )
1418 {
1419     cairo_translate(m_context,dx,dy);
1420 }
1421
1422 void wxCairoContext::Scale( wxDouble xScale , wxDouble yScale )
1423 {
1424     cairo_scale(m_context,xScale,yScale);
1425 }
1426
1427 // concatenates this transform with the current transform of this context
1428 void wxCairoContext::ConcatTransform( const wxGraphicsMatrix& matrix )
1429 {
1430     cairo_transform(m_context,(const cairo_matrix_t *) matrix.GetNativeMatrix());
1431 }
1432
1433 // sets the transform of this context
1434 void wxCairoContext::SetTransform( const wxGraphicsMatrix& matrix )
1435 {
1436     cairo_set_matrix(m_context,(const cairo_matrix_t*) matrix.GetNativeMatrix());
1437 }
1438
1439 // gets the matrix of this context
1440 wxGraphicsMatrix wxCairoContext::GetTransform() const
1441 {
1442     wxGraphicsMatrix matrix = CreateMatrix();
1443     cairo_get_matrix(m_context,(cairo_matrix_t*) matrix.GetNativeMatrix());
1444     return matrix;
1445 }
1446
1447
1448
1449 void wxCairoContext::PushState()
1450 {
1451     cairo_save(m_context);
1452 }
1453
1454 void wxCairoContext::PopState()
1455 {
1456     cairo_restore(m_context);
1457 }
1458
1459 void wxCairoContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1460 {
1461     wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
1462     DrawBitmap(bitmap, x, y, w, h);
1463
1464 }
1465
1466 void wxCairoContext::DrawBitmap(const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1467 {
1468     PushState();
1469
1470     // In case we're scaling the image by using a width and height different
1471     // than the bitmap's size create a pattern transformation on the surface and
1472     // draw the transformed pattern.
1473     wxCairoBitmapData* data = static_cast<wxCairoBitmapData*>(bmp.GetRefData());
1474     cairo_pattern_t* pattern = data->GetCairoPattern();
1475     wxSize size = data->GetSize();
1476
1477     wxDouble scaleX = w / size.GetWidth();
1478     wxDouble scaleY = h / size.GetHeight();
1479
1480     // prepare to draw the image
1481     cairo_translate(m_context, x, y);
1482     cairo_scale(m_context, scaleX, scaleY);
1483     cairo_set_source(m_context, pattern);
1484     // use the original size here since the context is scaled already...
1485     cairo_rectangle(m_context, 0, 0, size.GetWidth(), size.GetHeight());
1486     // fill the rectangle using the pattern
1487     cairo_fill(m_context);
1488
1489     PopState();
1490 }
1491
1492 void wxCairoContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
1493 {
1494     // An icon is a bitmap on wxGTK, so do this the easy way.  When we want to
1495     // start using the Cairo backend on other platforms then we may need to
1496     // fiddle with this...
1497     DrawBitmap(icon, x, y, w, h);
1498 }
1499
1500
1501 void wxCairoContext::DoDrawText(const wxString& str, wxDouble x, wxDouble y)
1502 {
1503     wxCHECK_RET( !m_font.IsNull(),
1504                  wxT("wxCairoContext::DrawText - no valid font set") );
1505
1506     if ( str.empty())
1507         return;
1508
1509     const wxCharBuffer data = str.utf8_str();
1510     if ( !data )
1511         return;
1512
1513     ((wxCairoFontData*)m_font.GetRefData())->Apply(this);
1514
1515 #ifdef __WXGTK__
1516     size_t datalen = strlen(data);
1517
1518     PangoLayout *layout = pango_cairo_create_layout (m_context);
1519     wxCairoFontData* font_data = (wxCairoFontData*) m_font.GetRefData();
1520     pango_layout_set_font_description( layout, font_data->GetFont());
1521     pango_layout_set_text(layout, data, datalen);
1522
1523     if (font_data->GetUnderlined())
1524     {
1525         PangoAttrList *attrs = pango_attr_list_new();
1526         PangoAttribute *attr = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE);
1527         pango_attr_list_insert(attrs, attr);
1528         pango_layout_set_attributes(layout, attrs);
1529         pango_attr_list_unref(attrs);
1530     }
1531
1532     cairo_move_to(m_context, x, y);
1533     pango_cairo_show_layout (m_context, layout);
1534
1535     g_object_unref (layout);
1536 #else
1537     // Cairo's x,y for drawing text is at the baseline, so we need to adjust
1538     // the position we move to by the ascent.
1539     cairo_font_extents_t fe;
1540     cairo_font_extents(m_context, &fe);
1541     cairo_move_to(m_context, x, y+fe.ascent);
1542
1543     cairo_show_text(m_context, data);
1544 #endif
1545 }
1546
1547 void wxCairoContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
1548                                     wxDouble *descent, wxDouble *externalLeading ) const
1549 {
1550     wxCHECK_RET( !m_font.IsNull(), wxT("wxCairoContext::GetTextExtent - no valid font set") );
1551
1552     if ( width )
1553         *width = 0;
1554     if ( height )
1555         *height = 0;
1556     if ( descent )
1557         *descent = 0;
1558     if ( externalLeading )
1559         *externalLeading = 0;
1560
1561     if ( str.empty())
1562         return;
1563
1564 #ifdef __WXGTK__
1565     int w, h;
1566
1567     PangoLayout *layout = pango_cairo_create_layout (m_context);
1568     pango_layout_set_font_description( layout, ((wxCairoFontData*)m_font.GetRefData())->GetFont());
1569     const wxCharBuffer data = str.utf8_str();
1570     if ( !data )
1571     {
1572         return;
1573     }
1574     pango_layout_set_text( layout, data, strlen(data) );
1575     pango_layout_get_pixel_size (layout, &w, &h);
1576     if ( width )
1577         *width = w;
1578     if ( height )
1579         *height = h;
1580     if (descent)
1581     {
1582         PangoLayoutIter *iter = pango_layout_get_iter(layout);
1583         int baseline = pango_layout_iter_get_baseline(iter);
1584         pango_layout_iter_free(iter);
1585         *descent = h - PANGO_PIXELS(baseline);
1586     }
1587     g_object_unref (layout);
1588 #else
1589     ((wxCairoFontData*)m_font.GetRefData())->Apply((wxCairoContext*)this);
1590
1591     if (width)
1592     {
1593         const wxWX2MBbuf buf(str.mb_str(wxConvUTF8));
1594         cairo_text_extents_t te;
1595         cairo_text_extents(m_context, buf, &te);
1596         *width = te.width;
1597     }
1598
1599     if (height || descent || externalLeading)
1600     {
1601         cairo_font_extents_t fe;
1602         cairo_font_extents(m_context, &fe);
1603
1604         // some backends have negative descents
1605
1606         if ( fe.descent < 0 )
1607             fe.descent = -fe.descent;
1608
1609         if ( fe.height < (fe.ascent + fe.descent ) )
1610         {
1611             // some backends are broken re height ... (eg currently ATSUI)
1612             fe.height = fe.ascent + fe.descent;
1613         }
1614
1615         if (height)
1616             *height = fe.height;
1617         if ( descent )
1618             *descent = fe.descent;
1619         if ( externalLeading )
1620             *externalLeading = wxMax(0, fe.height - (fe.ascent + fe.descent));
1621     }
1622 #endif
1623 }
1624
1625 void wxCairoContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
1626 {
1627     widths.Empty();
1628     widths.Add(0, text.length());
1629
1630     wxCHECK_RET( !m_font.IsNull(), wxT("wxCairoContext::GetPartialTextExtents - no valid font set") );
1631
1632     if (text.empty())
1633         return;
1634
1635     // TODO
1636 }
1637
1638 void * wxCairoContext::GetNativeContext()
1639 {
1640     return m_context;
1641 }
1642
1643 bool wxCairoContext::SetAntialiasMode(wxAntialiasMode antialias)
1644 {
1645     if (m_antialias == antialias)
1646         return true;
1647
1648     m_antialias = antialias;
1649
1650     cairo_antialias_t antialiasMode;
1651     switch (antialias)
1652     {
1653         case wxANTIALIAS_DEFAULT:
1654             antialiasMode = CAIRO_ANTIALIAS_DEFAULT;
1655             break;
1656         case wxANTIALIAS_NONE:
1657             antialiasMode = CAIRO_ANTIALIAS_NONE;
1658             break;
1659         default:
1660             return false;
1661     }
1662     cairo_set_antialias(m_context, antialiasMode);
1663     return true;
1664 }
1665
1666 bool wxCairoContext::SetCompositionMode(wxCompositionMode op)
1667 {
1668     if ( m_composition == op )
1669         return true;
1670
1671     m_composition = op;
1672     cairo_operator_t cop;
1673     switch (op)
1674     {
1675         case wxCOMPOSITION_CLEAR:
1676             cop = CAIRO_OPERATOR_CLEAR;
1677             break;
1678         case wxCOMPOSITION_SOURCE:
1679             cop = CAIRO_OPERATOR_SOURCE;
1680             break;
1681         case wxCOMPOSITION_OVER:
1682             cop = CAIRO_OPERATOR_OVER;
1683             break;
1684         case wxCOMPOSITION_IN:
1685             cop = CAIRO_OPERATOR_IN;
1686             break;
1687         case wxCOMPOSITION_OUT:
1688             cop = CAIRO_OPERATOR_OUT;
1689             break;
1690         case wxCOMPOSITION_ATOP:
1691             cop = CAIRO_OPERATOR_ATOP;
1692             break;
1693         case wxCOMPOSITION_DEST:
1694             cop = CAIRO_OPERATOR_DEST;
1695             break;
1696         case wxCOMPOSITION_DEST_OVER:
1697             cop = CAIRO_OPERATOR_DEST_OVER;
1698             break;
1699         case wxCOMPOSITION_DEST_IN:
1700             cop = CAIRO_OPERATOR_DEST_IN;
1701             break;
1702         case wxCOMPOSITION_DEST_OUT:
1703             cop = CAIRO_OPERATOR_DEST_OUT;
1704             break;
1705         case wxCOMPOSITION_DEST_ATOP:
1706             cop = CAIRO_OPERATOR_DEST_ATOP;
1707             break;
1708         case wxCOMPOSITION_XOR:
1709             cop = CAIRO_OPERATOR_XOR;
1710             break;
1711         case wxCOMPOSITION_ADD:
1712             cop = CAIRO_OPERATOR_ADD;
1713             break;
1714         default:
1715             return false;
1716     }
1717     cairo_set_operator(m_context, cop);
1718     return true;
1719 }
1720
1721 void wxCairoContext::BeginLayer(wxDouble opacity)
1722 {
1723     m_layerOpacities.push_back(opacity);
1724     cairo_push_group(m_context);
1725 }
1726
1727 void wxCairoContext::EndLayer()
1728 {
1729     float opacity = m_layerOpacities.back();
1730     m_layerOpacities.pop_back();
1731     cairo_pop_group_to_source(m_context);
1732     cairo_paint_with_alpha(m_context,opacity);
1733 }
1734
1735 //-----------------------------------------------------------------------------
1736 // wxCairoRenderer declaration
1737 //-----------------------------------------------------------------------------
1738
1739 class WXDLLIMPEXP_CORE wxCairoRenderer : public wxGraphicsRenderer
1740 {
1741 public :
1742     wxCairoRenderer() {}
1743
1744     virtual ~wxCairoRenderer() {}
1745
1746     // Context
1747
1748     virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
1749     virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
1750     virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
1751
1752     virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
1753
1754     virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
1755
1756     virtual wxGraphicsContext * CreateContext( wxWindow* window );
1757
1758     virtual wxGraphicsContext * CreateMeasuringContext();
1759
1760     // Path
1761
1762     virtual wxGraphicsPath CreatePath();
1763
1764     // Matrix
1765
1766     virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
1767         wxDouble tx=0.0, wxDouble ty=0.0);
1768
1769
1770     virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
1771
1772     virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
1773
1774     virtual wxGraphicsBrush
1775     CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
1776                               wxDouble x2, wxDouble y2,
1777                               const wxGraphicsGradientStops& stops);
1778
1779     virtual wxGraphicsBrush
1780     CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
1781                               wxDouble xc, wxDouble yc,
1782                               wxDouble radius,
1783                               const wxGraphicsGradientStops& stops);
1784
1785     // sets the font
1786     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
1787
1788     // create a native bitmap representation
1789     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap );
1790
1791     // create a graphics bitmap from a native bitmap
1792     virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap );
1793
1794     // create a subimage from a native image representation
1795     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  );
1796
1797 private :
1798     DECLARE_DYNAMIC_CLASS_NO_COPY(wxCairoRenderer)
1799 } ;
1800
1801 //-----------------------------------------------------------------------------
1802 // wxCairoRenderer implementation
1803 //-----------------------------------------------------------------------------
1804
1805 IMPLEMENT_DYNAMIC_CLASS(wxCairoRenderer,wxGraphicsRenderer)
1806
1807 static wxCairoRenderer gs_cairoGraphicsRenderer;
1808 // temporary hack to allow creating a cairo context on any platform
1809 extern wxGraphicsRenderer* gCairoRenderer;
1810 wxGraphicsRenderer* gCairoRenderer = &gs_cairoGraphicsRenderer;
1811
1812 wxGraphicsContext * wxCairoRenderer::CreateContext( const wxWindowDC& dc)
1813 {
1814     return new wxCairoContext(this,dc);
1815 }
1816
1817 wxGraphicsContext * wxCairoRenderer::CreateContext( const wxMemoryDC& dc)
1818 {
1819     return new wxCairoContext(this,dc);
1820 }
1821
1822 wxGraphicsContext * wxCairoRenderer::CreateContext( const wxPrinterDC& dc)
1823 {
1824 #ifdef __WXGTK20__
1825     const wxDCImpl *impl = dc.GetImpl();
1826     cairo_t* context = (cairo_t*) impl->GetCairoContext();
1827     if (context)
1828        return new wxCairoContext(this,dc);
1829     else
1830 #endif
1831        return NULL;
1832 }
1833
1834 wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeContext( void * context )
1835 {
1836 #ifdef __WXMSW__
1837     return new wxCairoContext(this,(HDC)context);
1838 #else
1839     return new wxCairoContext(this,(cairo_t*)context);
1840 #endif
1841 }
1842
1843
1844 wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeWindow( void * window )
1845 {
1846 #ifdef __WXGTK__
1847     return new wxCairoContext(this,(GdkDrawable*)window);
1848 #else
1849     return NULL;
1850 #endif
1851 }
1852
1853 wxGraphicsContext * wxCairoRenderer::CreateMeasuringContext()
1854 {
1855 #ifdef __WXGTK__
1856     return CreateContextFromNativeWindow(gdk_get_default_root_window());
1857 #endif
1858     return NULL;
1859     // TODO
1860 }
1861
1862 wxGraphicsContext * wxCairoRenderer::CreateContext( wxWindow* window )
1863 {
1864     return new wxCairoContext(this, window );
1865 }
1866
1867 // Path
1868
1869 wxGraphicsPath wxCairoRenderer::CreatePath()
1870 {
1871     wxGraphicsPath path;
1872     path.SetRefData( new wxCairoPathData(this) );
1873     return path;
1874 }
1875
1876
1877 // Matrix
1878
1879 wxGraphicsMatrix wxCairoRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
1880                                                 wxDouble tx, wxDouble ty)
1881
1882 {
1883     wxGraphicsMatrix m;
1884     wxCairoMatrixData* data = new wxCairoMatrixData( this );
1885     data->Set( a,b,c,d,tx,ty ) ;
1886     m.SetRefData(data);
1887     return m;
1888 }
1889
1890 wxGraphicsPen wxCairoRenderer::CreatePen(const wxPen& pen)
1891 {
1892     if ( !pen.Ok() || pen.GetStyle() == wxPENSTYLE_TRANSPARENT )
1893         return wxNullGraphicsPen;
1894     else
1895     {
1896         wxGraphicsPen p;
1897         p.SetRefData(new wxCairoPenData( this, pen ));
1898         return p;
1899     }
1900 }
1901
1902 wxGraphicsBrush wxCairoRenderer::CreateBrush(const wxBrush& brush )
1903 {
1904     if ( !brush.Ok() || brush.GetStyle() == wxBRUSHSTYLE_TRANSPARENT )
1905         return wxNullGraphicsBrush;
1906     else
1907     {
1908         wxGraphicsBrush p;
1909         p.SetRefData(new wxCairoBrushData( this, brush ));
1910         return p;
1911     }
1912 }
1913
1914 wxGraphicsBrush
1915 wxCairoRenderer::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
1916                                            wxDouble x2, wxDouble y2,
1917                                            const wxGraphicsGradientStops& stops)
1918 {
1919     wxGraphicsBrush p;
1920     wxCairoBrushData* d = new wxCairoBrushData( this );
1921     d->CreateLinearGradientBrush(x1, y1, x2, y2, stops);
1922     p.SetRefData(d);
1923     return p;
1924 }
1925
1926 wxGraphicsBrush
1927 wxCairoRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
1928                                            wxDouble xc, wxDouble yc, wxDouble r,
1929                                            const wxGraphicsGradientStops& stops)
1930 {
1931     wxGraphicsBrush p;
1932     wxCairoBrushData* d = new wxCairoBrushData( this );
1933     d->CreateRadialGradientBrush(xo, yo, xc, yc, r, stops);
1934     p.SetRefData(d);
1935     return p;
1936 }
1937
1938 // sets the font
1939 wxGraphicsFont wxCairoRenderer::CreateFont( const wxFont &font , const wxColour &col )
1940 {
1941     if ( font.Ok() )
1942     {
1943         wxGraphicsFont p;
1944         p.SetRefData(new wxCairoFontData( this , font, col ));
1945         return p;
1946     }
1947     else
1948         return wxNullGraphicsFont;
1949 }
1950
1951 wxGraphicsBitmap wxCairoRenderer::CreateBitmap( const wxBitmap& bmp )
1952 {
1953     if ( bmp.Ok() )
1954     {
1955         wxGraphicsBitmap p;
1956         p.SetRefData(new wxCairoBitmapData( this , bmp ));
1957         return p;
1958     }
1959     else
1960         return wxNullGraphicsBitmap;
1961 }
1962
1963 wxGraphicsBitmap wxCairoRenderer::CreateBitmapFromNativeBitmap( void* bitmap )
1964 {
1965     if ( bitmap != NULL )
1966     {
1967         wxGraphicsBitmap p;
1968         p.SetRefData(new wxCairoBitmapData( this , (cairo_surface_t*) bitmap ));
1969         return p;
1970     }
1971     else
1972         return wxNullGraphicsBitmap;
1973 }
1974
1975 wxGraphicsBitmap
1976 wxCairoRenderer::CreateSubBitmap(const wxGraphicsBitmap& WXUNUSED(bitmap),
1977                                  wxDouble WXUNUSED(x),
1978                                  wxDouble WXUNUSED(y),
1979                                  wxDouble WXUNUSED(w),
1980                                  wxDouble WXUNUSED(h))
1981 {
1982     wxFAIL_MSG("wxCairoRenderer::CreateSubBitmap is not implemented.");
1983     return wxNullGraphicsBitmap;
1984 }
1985
1986 wxGraphicsRenderer* wxGraphicsRenderer::GetCairoRenderer()
1987 {
1988     return &gs_cairoGraphicsRenderer;
1989 }
1990
1991 #else // !wxUSE_CAIRO
1992
1993 wxGraphicsRenderer* wxGraphicsRenderer::GetCairoRenderer()
1994 {
1995     return NULL;
1996 }
1997
1998 #endif  // wxUSE_CAIRO/!wxUSE_CAIRO
1999
2000 // MSW and OS X have their own native default renderers, but the other ports
2001 // use Cairo by default
2002 #if !(defined(__WXMSW__) || defined(__WXOSX__))
2003 wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
2004 {
2005     return GetCairoRenderer();
2006 }
2007 #endif // !(__WXMSW__ || __WXOSX__)
2008
2009 #endif // wxUSE_GRAPHICS_CONTEXT