src/mac/carbon/dccg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mac/carbon/dccg.cpp
   3 // Purpose:     wxDC class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/dc.h"
  15
  16 #if wxMAC_USE_CORE_GRAPHICS
  17
  18 #ifndef WX_PRECOMP
  19     #include "wx/log.h"
  20     #include "wx/dcmemory.h"
  21     #include "wx/region.h"
  22 #endif
  23
  24 #include "wx/mac/uma.h"
  25
  26 #ifdef __MSL__
  27     #if __MSL__ >= 0x6000
  28         #include "math.h"
  29         // in case our functions were defined outside std, we make it known all the same
  30         namespace std { }
  31         using namespace std ;
  32     #endif
  33 #endif
  34
  35 #include "wx/mac/private.h"
  36
  37
  38 #ifndef wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
  39 #define wxMAC_USE_CORE_GRAPHICS_BLEND_MODES 0
  40 #endif
  41
  42 #if MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_4
  43 typedef float CGFloat ;
  44 #endif
  45
  46 //-----------------------------------------------------------------------------
  47 // constants
  48 //-----------------------------------------------------------------------------
  49
  50 #if !defined( __DARWIN__ ) || defined(__MWERKS__)
  51 #ifndef M_PI
  52 const double M_PI = 3.14159265358979 ;
  53 #endif
  54 #endif
  55
  56 static const double RAD2DEG = 180.0 / M_PI;
  57
  58 #ifndef __LP64__
  59
  60 // TODO: update
  61 // The textctrl implementation still needs that (needs what?) for the non-HIView implementation
  62 //
  63 wxMacWindowClipper::wxMacWindowClipper( const wxWindow* win ) :
  64     wxMacPortSaver( (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) )
  65 {
  66     m_newPort = (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) ;
  67     m_formerClip = NewRgn() ;
  68     m_newClip = NewRgn() ;
  69     GetClip( m_formerClip ) ;
  70
  71     if ( win )
  72     {
  73         // guard against half constructed objects, this just leads to a empty clip
  74         if ( win->GetPeer() )
  75         {
  76             int x = 0 , y = 0;
  77             win->MacWindowToRootWindow( &x, &y ) ;
  78
  79             // get area including focus rect
  80             CopyRgn( (RgnHandle) ((wxWindow*)win)->MacGetVisibleRegion(true).GetWXHRGN() , m_newClip ) ;
  81             if ( !EmptyRgn( m_newClip ) )
  82                 OffsetRgn( m_newClip , x , y ) ;
  83         }
  84
  85         SetClip( m_newClip ) ;
  86     }
  87 }
  88
  89 wxMacWindowClipper::~wxMacWindowClipper()
  90 {
  91     SetPort( m_newPort ) ;
  92     SetClip( m_formerClip ) ;
  93     DisposeRgn( m_newClip ) ;
  94     DisposeRgn( m_formerClip ) ;
  95 }
  96
  97 wxMacWindowStateSaver::wxMacWindowStateSaver( const wxWindow* win ) :
  98     wxMacWindowClipper( win )
  99 {
 100     // the port is already set at this point
 101     m_newPort = (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) ;
 102     GetThemeDrawingState( &m_themeDrawingState ) ;
 103 }
 104
 105 wxMacWindowStateSaver::~wxMacWindowStateSaver()
 106 {
 107     SetPort( m_newPort ) ;
 108     SetThemeDrawingState( m_themeDrawingState , true ) ;
 109 }
 110
 111 // minimal implementation only used for appearance drawing < 10.3
 112
 113 #ifndef wxMAC_USE_CORE_GRAPHICS
 114 wxMacPortSetter::wxMacPortSetter( const wxDC* dc ) :
 115     m_ph( (GrafPtr) dc->m_macPort )
 116 {
 117     wxASSERT( dc->Ok() ) ;
 118     m_dc = dc ;
 119
 120 //    dc->MacSetupPort(&m_ph) ;
 121 }
 122
 123 wxMacPortSetter::~wxMacPortSetter()
 124 {
 125 //    m_dc->MacCleanupPort(&m_ph) ;
 126 }
 127
 128 #endif
 129
 130 #endif
 131
 132 //-----------------------------------------------------------------------------
 133 // Local functions
 134 //-----------------------------------------------------------------------------
 135
 136 static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
 137
 138 //-----------------------------------------------------------------------------
 139 // device context implementation
 140 //
 141 // more and more of the dc functionality should be implemented by calling
 142 // the appropricate wxMacCGContext, but we will have to do that step by step
 143 // also coordinate conversions should be moved to native matrix ops
 144 //-----------------------------------------------------------------------------
 145
 146 // we always stock two context states, one at entry, to be able to preserve the
 147 // state we were called with, the other one after changing to HI Graphics orientation
 148 // (this one is used for getting back clippings etc)
 149
 150 //-----------------------------------------------------------------------------
 151 // wxGraphicPath implementation
 152 //-----------------------------------------------------------------------------
 153
 154 #if !wxUSE_GRAPHICS_CONTEXT
 155
 156 IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
 157
 158 wxMacCGPath::wxMacCGPath()
 159 {
 160     m_path = CGPathCreateMutable() ;
 161 }
 162
 163 wxMacCGPath::~wxMacCGPath()
 164 {
 165     CGPathRelease( m_path ) ;
 166 }
 167
 168 // opens (starts) a new subpath
 169 void wxMacCGPath::MoveToPoint( wxCoord x1 , wxCoord y1 )
 170 {
 171     CGPathMoveToPoint( m_path , NULL , x1 , y1 ) ;
 172 }
 173
 174 void wxMacCGPath::AddLineToPoint( wxCoord x1 , wxCoord y1 )
 175 {
 176     CGPathAddLineToPoint( m_path , NULL , x1 , y1 ) ;
 177 }
 178
 179 void wxMacCGPath::AddQuadCurveToPoint( wxCoord cx1, wxCoord cy1, wxCoord x1, wxCoord y1 )
 180 {
 181     CGPathAddQuadCurveToPoint( m_path , NULL , cx1 , cy1 , x1 , y1 );
 182 }
 183
 184 void wxMacCGPath::AddRectangle( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
 185 {
 186     CGRect cgRect = { { x , y } , { w , h } } ;
 187     CGPathAddRect( m_path , NULL , cgRect ) ;
 188 }
 189
 190 void wxMacCGPath::AddCircle( wxCoord x, wxCoord y , wxCoord r )
 191 {
 192     CGPathAddArc( m_path , NULL , x , y , r , 0.0 , 2 * M_PI , true ) ;
 193 }
 194
 195 // closes the current subpath
 196 void wxMacCGPath::CloseSubpath()
 197 {
 198     CGPathCloseSubpath( m_path ) ;
 199 }
 200
 201 CGPathRef wxMacCGPath::GetPath() const
 202 {
 203     return m_path ;
 204 }
 205
 206 void wxMacCGPath::AddArcToPoint( wxCoord x1, wxCoord y1 , wxCoord x2, wxCoord y2, wxCoord r )
 207 {
 208     CGPathAddArcToPoint( m_path, NULL , x1, y1, x2, y2, r);
 209 }
 210
 211 void wxMacCGPath::AddArc( wxCoord x, wxCoord y, wxCoord r, double startAngle, double endAngle, bool clockwise )
 212 {
 213     CGPathAddArc( m_path, NULL , x, y, r, startAngle, endAngle, clockwise);
 214 }
 215
 216 //-----------------------------------------------------------------------------
 217 // wxGraphicContext implementation
 218 //-----------------------------------------------------------------------------
 219
 220 wxMacCGContext::wxMacCGContext( CGrafPtr port )
 221 {
 222     m_qdPort = port ;
 223     m_cgContext = NULL ;
 224     m_mode = kCGPathFill;
 225     m_macATSUIStyle = NULL ;
 226 }
 227
 228 wxMacCGContext::wxMacCGContext( CGContextRef cgcontext )
 229 {
 230     m_qdPort = NULL ;
 231     m_cgContext = cgcontext ;
 232     m_mode = kCGPathFill;
 233     m_macATSUIStyle = NULL ;
 234     CGContextSaveGState( m_cgContext ) ;
 235     CGContextSaveGState( m_cgContext ) ;
 236 }
 237
 238 wxMacCGContext::wxMacCGContext()
 239 {
 240     m_qdPort = NULL ;
 241     m_cgContext = NULL ;
 242     m_mode = kCGPathFill;
 243     m_macATSUIStyle = NULL ;
 244 }
 245
 246 wxMacCGContext::~wxMacCGContext()
 247 {
 248     if ( m_cgContext )
 249     {
 250         CGContextSynchronize( m_cgContext ) ;
 251         CGContextRestoreGState( m_cgContext ) ;
 252         CGContextRestoreGState( m_cgContext ) ;
 253     }
 254 #ifndef __LP64__
 255     if ( m_qdPort )
 256         QDEndCGContext( m_qdPort, &m_cgContext ) ;
 257 #endif
 258 }
 259
 260
 261 void wxMacCGContext::Clip( const wxRegion &region )
 262 {
 263 //    ClipCGContextToRegion ( m_cgContext, &bounds , (RgnHandle) dc->m_macCurrentClipRgn ) ;
 264 }
 265
 266 void wxMacCGContext::StrokePath( const wxGraphicPath *p )
 267 {
 268     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 269
 270     int width = m_pen.GetWidth();
 271     if ( width == 0 )
 272         width = 1 ;
 273     if ( m_pen.GetStyle() == wxTRANSPARENT )
 274         width = 0 ;
 275
 276     bool offset = ( width % 2 ) == 1 ;
 277
 278     if ( offset )
 279         CGContextTranslateCTM( m_cgContext, 0.5, 0.5 );
 280
 281     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 282     CGContextStrokePath( m_cgContext ) ;
 283
 284     if ( offset )
 285         CGContextTranslateCTM( m_cgContext, -0.5, -0.5 );
 286 }
 287
 288 void wxMacCGContext::DrawPath( const wxGraphicPath *p , int fillStyle )
 289 {
 290     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 291     CGPathDrawingMode mode = m_mode ;
 292
 293     if ( fillStyle == wxODDEVEN_RULE )
 294     {
 295         if ( mode == kCGPathFill )
 296             mode = kCGPathEOFill ;
 297         else if ( mode == kCGPathFillStroke )
 298             mode = kCGPathEOFillStroke ;
 299     }
 300
 301     int width = m_pen.GetWidth();
 302     if ( width == 0 )
 303         width = 1 ;
 304     if ( m_pen.GetStyle() == wxTRANSPARENT )
 305         width = 0 ;
 306
 307     bool offset = ( width % 2 ) == 1 ;
 308
 309     if ( offset )
 310         CGContextTranslateCTM( m_cgContext, 0.5, 0.5 );
 311
 312     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 313     CGContextDrawPath( m_cgContext , mode ) ;
 314
 315     if ( offset )
 316         CGContextTranslateCTM( m_cgContext, -0.5, -0.5 );
 317 }
 318
 319 void wxMacCGContext::FillPath( const wxGraphicPath *p , const wxColor &fillColor , int fillStyle )
 320 {
 321     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 322     CGContextSaveGState( m_cgContext ) ;
 323
 324     RGBColor col = MAC_WXCOLORREF( fillColor.GetPixel() ) ;
 325     CGContextSetRGBFillColor( m_cgContext , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
 326     CGPathDrawingMode mode = kCGPathFill ;
 327
 328     if ( fillStyle == wxODDEVEN_RULE )
 329         mode = kCGPathEOFill ;
 330
 331     CGContextBeginPath( m_cgContext ) ;
 332     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 333     CGContextClosePath( m_cgContext ) ;
 334     CGContextDrawPath( m_cgContext , mode ) ;
 335
 336     CGContextRestoreGState( m_cgContext ) ;
 337 }
 338
 339 wxGraphicPath* wxMacCGContext::CreatePath()
 340 {
 341     // make sure that we now have a real cgref, before doing
 342     // anything with paths
 343     CGContextRef cg = GetNativeContext() ;
 344     cg = NULL ;
 345
 346     return new wxMacCGPath() ;
 347 }
 348
 349 // in case we only got a QDPort only create a cgref now
 350
 351 CGContextRef wxMacCGContext::GetNativeContext()
 352 {
 353     if ( m_cgContext == NULL )
 354     {
 355         Rect bounds ;
 356         OSStatus status = noErr;
 357 #ifndef __LP64__
 358         GetPortBounds( (CGrafPtr) m_qdPort , &bounds ) ;
 359         status = QDBeginCGContext((CGrafPtr) m_qdPort , &m_cgContext) ;
 360 #endif
 361         CGContextSaveGState( m_cgContext ) ;
 362
 363         wxASSERT_MSG( status == noErr , wxT("Cannot nest wxDCs on the same window") ) ;
 364
 365         CGContextTranslateCTM( m_cgContext , 0 , bounds.bottom - bounds.top ) ;
 366         CGContextScaleCTM( m_cgContext , 1 , -1 ) ;
 367
 368         CGContextSaveGState( m_cgContext ) ;
 369         SetPen( m_pen ) ;
 370         SetBrush( m_brush ) ;
 371     }
 372
 373     return m_cgContext ;
 374 }
 375
 376 void wxMacCGContext::SetNativeContext( CGContextRef cg )
 377 {
 378     // we allow either setting or clearing but not replacing
 379     wxASSERT( m_cgContext == NULL || cg == NULL ) ;
 380
 381     if ( cg )
 382         CGContextSaveGState( cg ) ;
 383     m_cgContext = cg ;
 384 }
 385
 386 void wxMacCGContext::Translate( wxCoord dx , wxCoord dy )
 387 {
 388     CGContextTranslateCTM( m_cgContext, dx, dy );
 389 }
 390
 391 void wxMacCGContext::Scale( wxCoord xScale , wxCoord yScale )
 392 {
 393     CGContextScaleCTM( m_cgContext , xScale , yScale ) ;
 394 }
 395
 396 void wxMacCGContext::DrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, wxCoord w, wxCoord h )
 397 {
 398     CGImageRef image = (CGImageRef)( bmp.CGImageCreate() ) ;
 399     HIRect r = CGRectMake( 0 , 0 , w , h );
 400
 401     CGContextSaveGState( m_cgContext );
 402     CGContextTranslateCTM( m_cgContext, x , y + h );
 403     CGContextScaleCTM( m_cgContext, 1, -1 );
 404
 405     // in case image is a mask, set the foreground color
 406     CGContextSetRGBFillColor( m_cgContext , m_textForegroundColor.Red() / 255.0 , m_textForegroundColor.Green() / 255.0 ,
 407         m_textForegroundColor.Blue() / 255.0 , m_textForegroundColor.Alpha() / 255.0 ) ;
 408     CGContextDrawImage( m_cgContext, r, image );
 409     CGContextRestoreGState( m_cgContext );
 410
 411     CGImageRelease( image ) ;
 412 }
 413
 414 void wxMacCGContext::DrawIcon( const wxIcon &icon, wxCoord x, wxCoord y, wxCoord w, wxCoord h )
 415 {
 416     CGRect r = CGRectMake( 0 , 0 , w , h ) ;
 417     CGContextSaveGState( m_cgContext );
 418     CGContextTranslateCTM( m_cgContext, x , y + h );
 419     CGContextScaleCTM( m_cgContext, 1, -1 );
 420     PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
 421         NULL , kPlotIconRefNormalFlags , MAC_WXHICON( icon.GetHICON() ) ) ;
 422     CGContextRestoreGState( m_cgContext ) ;
 423 }
 424
 425 void wxMacCGContext::PushState()
 426 {
 427     CGContextSaveGState( m_cgContext );
 428 }
 429
 430 void wxMacCGContext::PopState()
 431 {
 432     CGContextRestoreGState( m_cgContext );
 433 }
 434
 435 void wxMacCGContext::SetTextColor( const wxColour &col )
 436 {
 437     m_textForegroundColor = col ;
 438 }
 439
 440 #pragma mark -
 441 #pragma mark wxMacCGPattern, ImagePattern, HatchPattern classes
 442
 443 // CGPattern wrapper class: always allocate on heap, never call destructor
 444
 445 class wxMacCGPattern
 446 {
 447 public :
 448     wxMacCGPattern() {}
 449
 450     // is guaranteed to be called only with a non-Null CGContextRef
 451     virtual void Render( CGContextRef ctxRef ) = 0 ;
 452
 453     operator CGPatternRef() const { return m_patternRef ; }
 454
 455 protected :
 456     virtual ~wxMacCGPattern()
 457     {
 458         // as this is called only when the m_patternRef is been released;
 459         // don't release it again
 460     }
 461
 462     static void _Render( void *info, CGContextRef ctxRef )
 463     {
 464         wxMacCGPattern* self = (wxMacCGPattern*) info ;
 465         if ( self && ctxRef )
 466             self->Render( ctxRef ) ;
 467     }
 468
 469     static void _Dispose( void *info )
 470     {
 471         wxMacCGPattern* self = (wxMacCGPattern*) info ;
 472         delete self ;
 473     }
 474
 475     CGPatternRef m_patternRef ;
 476
 477     static const CGPatternCallbacks ms_Callbacks ;
 478 } ;
 479
 480 const CGPatternCallbacks wxMacCGPattern::ms_Callbacks = { 0, &wxMacCGPattern::_Render, &wxMacCGPattern::_Dispose };
 481
 482 class ImagePattern : public wxMacCGPattern
 483 {
 484 public :
 485     ImagePattern( const wxBitmap* bmp , const CGAffineTransform& transform )
 486     {
 487         wxASSERT( bmp && bmp->Ok() ) ;
 488
 489         Init( (CGImageRef) bmp->CGImageCreate() , transform ) ;
 490     }
 491
 492     // ImagePattern takes ownership of CGImageRef passed in
 493     ImagePattern( CGImageRef image , const CGAffineTransform& transform )
 494     {
 495         if ( image )
 496             CFRetain( image ) ;
 497
 498         Init( image , transform ) ;
 499     }
 500
 501     virtual void Render( CGContextRef ctxRef )
 502     {
 503         if (m_image != NULL)
 504             HIViewDrawCGImage( ctxRef, &m_imageBounds, m_image );
 505     }
 506
 507 protected :
 508     void Init( CGImageRef image, const CGAffineTransform& transform )
 509     {
 510         m_image = image ;
 511         if ( m_image )
 512         {
 513             m_imageBounds = CGRectMake( 0.0, 0.0, (CGFloat)CGImageGetWidth( m_image ), (CGFloat)CGImageGetHeight( m_image ) ) ;
 514             m_patternRef = CGPatternCreate(
 515                 this , m_imageBounds, transform ,
 516                 m_imageBounds.size.width, m_imageBounds.size.height,
 517                 kCGPatternTilingNoDistortion, true , &wxMacCGPattern::ms_Callbacks ) ;
 518         }
 519     }
 520
 521     virtual ~ImagePattern()
 522     {
 523         if ( m_image )
 524             CGImageRelease( m_image ) ;
 525     }
 526
 527     CGImageRef m_image ;
 528     CGRect m_imageBounds ;
 529 } ;
 530
 531 class HatchPattern : public wxMacCGPattern
 532 {
 533 public :
 534     HatchPattern( int hatchstyle, const CGAffineTransform& transform )
 535     {
 536         m_hatch = hatchstyle ;
 537         m_imageBounds = CGRectMake( 0.0, 0.0, 8.0 , 8.0 ) ;
 538         m_patternRef = CGPatternCreate(
 539             this , m_imageBounds, transform ,
 540             m_imageBounds.size.width, m_imageBounds.size.height,
 541             kCGPatternTilingNoDistortion, false , &wxMacCGPattern::ms_Callbacks ) ;
 542     }
 543
 544     void StrokeLineSegments( CGContextRef ctxRef , const CGPoint pts[] , size_t count )
 545     {
 546 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
 547         if ( UMAGetSystemVersion() >= 0x1040 )
 548         {
 549             CGContextStrokeLineSegments( ctxRef , pts , count ) ;
 550         }
 551         else
 552 #endif
 553         {
 554             CGContextBeginPath( ctxRef );
 555             for (size_t i = 0; i < count; i += 2)
 556             {
 557                 CGContextMoveToPoint(ctxRef, pts[i].x, pts[i].y);
 558                 CGContextAddLineToPoint(ctxRef, pts[i+1].x, pts[i+1].y);
 559             }
 560             CGContextStrokePath(ctxRef);
 561         }
 562     }
 563
 564     virtual void Render( CGContextRef ctxRef )
 565     {
 566         switch ( m_hatch )
 567         {
 568             case wxBDIAGONAL_HATCH :
 569                 {
 570                     CGPoint pts[] =
 571                     {
 572                     { 8.0 , 0.0 } , { 0.0 , 8.0 }
 573                     };
 574                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 575                 }
 576                 break ;
 577
 578             case wxCROSSDIAG_HATCH :
 579                 {
 580                     CGPoint pts[] =
 581                     {
 582                         { 0.0 , 0.0 } , { 8.0 , 8.0 } ,
 583                         { 8.0 , 0.0 } , { 0.0 , 8.0 }
 584                     };
 585                     StrokeLineSegments( ctxRef , pts , 4 ) ;
 586                 }
 587                 break ;
 588
 589             case wxFDIAGONAL_HATCH :
 590                 {
 591                     CGPoint pts[] =
 592                     {
 593                     { 0.0 , 0.0 } , { 8.0 , 8.0 }
 594                     };
 595                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 596                 }
 597                 break ;
 598
 599             case wxCROSS_HATCH :
 600                 {
 601                     CGPoint pts[] =
 602                     {
 603                     { 0.0 , 4.0 } , { 8.0 , 4.0 } ,
 604                     { 4.0 , 0.0 } , { 4.0 , 8.0 } ,
 605                     };
 606                     StrokeLineSegments( ctxRef , pts , 4 ) ;
 607                 }
 608                 break ;
 609
 610             case wxHORIZONTAL_HATCH :
 611                 {
 612                     CGPoint pts[] =
 613                     {
 614                     { 0.0 , 4.0 } , { 8.0 , 4.0 } ,
 615                     };
 616                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 617                 }
 618                 break ;
 619
 620             case wxVERTICAL_HATCH :
 621                 {
 622                     CGPoint pts[] =
 623                     {
 624                     { 4.0 , 0.0 } , { 4.0 , 8.0 } ,
 625                     };
 626                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 627                 }
 628                 break ;
 629
 630             default:
 631                 break;
 632         }
 633     }
 634
 635 protected :
 636     virtual ~HatchPattern() {}
 637
 638     CGRect      m_imageBounds ;
 639     int         m_hatch ;
 640 };
 641
 642 #pragma mark -
 643
 644 void wxMacCGContext::SetPen( const wxPen &pen )
 645 {
 646     m_pen = pen ;
 647     if ( m_cgContext == NULL )
 648         return ;
 649
 650     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
 651     bool stroke = pen.GetStyle() != wxTRANSPARENT ;
 652
 653 #if 0
 654     // we can benchmark performance; should go into a setting eventually
 655     CGContextSetShouldAntialias( m_cgContext , false ) ;
 656 #endif
 657
 658     if ( fill || stroke )
 659     {
 660         // set up brushes
 661         m_mode = kCGPathFill ; // just a default
 662
 663         if ( stroke )
 664         {
 665             CGContextSetRGBStrokeColor( m_cgContext , pen.GetColour().Red() / 255.0 , pen.GetColour().Green() / 255.0 ,
 666                     pen.GetColour().Blue() / 255.0 , pen.GetColour().Alpha() / 255.0 ) ;
 667
 668             // TODO: * m_dc->m_scaleX
 669             CGFloat penWidth = pen.GetWidth();
 670             if (penWidth <= 0.0)
 671                 penWidth = 0.1;
 672             CGContextSetLineWidth( m_cgContext , penWidth ) ;
 673
 674             CGLineCap cap ;
 675             switch ( pen.GetCap() )
 676             {
 677                 case wxCAP_ROUND :
 678                     cap = kCGLineCapRound ;
 679                     break ;
 680
 681                 case wxCAP_PROJECTING :
 682                     cap = kCGLineCapSquare ;
 683                     break ;
 684
 685                 case wxCAP_BUTT :
 686                     cap = kCGLineCapButt ;
 687                     break ;
 688
 689                 default :
 690                     cap = kCGLineCapButt ;
 691                     break ;
 692             }
 693
 694             CGLineJoin join ;
 695             switch ( pen.GetJoin() )
 696             {
 697                 case wxJOIN_BEVEL :
 698                     join = kCGLineJoinBevel ;
 699                     break ;
 700
 701                 case wxJOIN_MITER :
 702                     join = kCGLineJoinMiter ;
 703                     break ;
 704
 705                 case wxJOIN_ROUND :
 706                     join = kCGLineJoinRound ;
 707                     break ;
 708
 709                 default :
 710                     join = kCGLineJoinMiter ;
 711                     break;
 712             }
 713
 714             m_mode = kCGPathStroke ;
 715             int count = 0 ;
 716
 717             const CGFloat *lengths = NULL ;
 718             CGFloat *userLengths = NULL ;
 719
 720             const CGFloat dashUnit = penWidth < 1.0 ? 1.0 : penWidth;
 721
 722             const CGFloat dotted[] = { dashUnit , dashUnit + 2.0 };
 723             const CGFloat short_dashed[] = { 9.0 , 6.0 };
 724             const CGFloat dashed[] = { 19.0 , 9.0 };
 725             const CGFloat dotted_dashed[] = { 9.0 , 6.0 , 3.0 , 3.0 };
 726
 727             switch ( pen.GetStyle() )
 728             {
 729                 case wxSOLID :
 730                     break ;
 731
 732                 case wxDOT :
 733                     lengths = dotted ;
 734                     count = WXSIZEOF(dotted);
 735                     break ;
 736
 737                 case wxLONG_DASH :
 738                     lengths = dashed ;
 739                     count = WXSIZEOF(dashed) ;
 740                     break ;
 741
 742                 case wxSHORT_DASH :
 743                     lengths = short_dashed ;
 744                     count = WXSIZEOF(short_dashed) ;
 745                     break ;
 746
 747                 case wxDOT_DASH :
 748                     lengths = dotted_dashed ;
 749                     count = WXSIZEOF(dotted_dashed);
 750                     break ;
 751
 752                 case wxUSER_DASH :
 753                     wxDash *dashes ;
 754                     count = pen.GetDashes( &dashes ) ;
 755                     if ((dashes != NULL) && (count > 0))
 756                     {
 757                         userLengths = new CGFloat[count] ;
 758                         for ( int i = 0 ; i < count ; ++i )
 759                         {
 760                             userLengths[i] = dashes[i] * dashUnit ;
 761
 762                             if ( i % 2 == 1 && userLengths[i] < dashUnit + 2.0 )
 763                                 userLengths[i] = dashUnit + 2.0 ;
 764                             else if ( i % 2 == 0 && userLengths[i] < dashUnit )
 765                                 userLengths[i] = dashUnit ;
 766                         }
 767                     }
 768                     lengths = userLengths ;
 769                     break ;
 770
 771                 case wxSTIPPLE :
 772                     {
 773                         CGFloat  alphaArray[1] = { 1.0 } ;
 774                         wxBitmap* bmp = pen.GetStipple() ;
 775                         if ( bmp && bmp->Ok() )
 776                         {
 777                             wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( NULL ) ) ;
 778                             CGContextSetStrokeColorSpace( m_cgContext , patternSpace ) ;
 779                             wxMacCFRefHolder<CGPatternRef> pattern( *( new ImagePattern( bmp , CGContextGetCTM( m_cgContext ) ) ) );
 780                             CGContextSetStrokePattern( m_cgContext, pattern , alphaArray ) ;
 781                         }
 782                     }
 783                     break ;
 784
 785                 default :
 786                     {
 787                         wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) ) ;
 788                         CGContextSetStrokeColorSpace( m_cgContext , patternSpace ) ;
 789                         wxMacCFRefHolder<CGPatternRef> pattern( *( new HatchPattern( pen.GetStyle() , CGContextGetCTM( m_cgContext ) ) ) );
 790
 791                         CGFloat  colorArray[4] = { pen.GetColour().Red() / 255.0 , pen.GetColour().Green() / 255.0 ,
 792                             pen.GetColour().Blue() / 255.0 , pen.GetColour().Alpha() / 255.0 } ;
 793
 794                         CGContextSetStrokePattern( m_cgContext, pattern , colorArray ) ;
 795                     }
 796                     break ;
 797             }
 798
 799             if ((lengths != NULL) && (count > 0))
 800             {
 801                 CGContextSetLineDash( m_cgContext , 0 , lengths , count ) ;
 802                 // force the line cap, otherwise we get artifacts (overlaps) and just solid lines
 803                 cap = kCGLineCapButt ;
 804             }
 805             else
 806             {
 807                CGContextSetLineDash( m_cgContext , 0 , NULL , 0 ) ;
 808             }
 809
 810             CGContextSetLineCap( m_cgContext , cap ) ;
 811             CGContextSetLineJoin( m_cgContext , join ) ;
 812
 813             delete[] userLengths ;
 814         }
 815
 816         if ( fill && stroke )
 817             m_mode = kCGPathFillStroke ;
 818     }
 819 }
 820
 821 void wxMacCGContext::SetBrush( const wxBrush &brush )
 822 {
 823     m_brush = brush ;
 824     if ( m_cgContext == NULL )
 825         return ;
 826
 827     bool fill = brush.GetStyle() != wxTRANSPARENT ;
 828     bool stroke = m_pen.GetStyle() != wxTRANSPARENT ;
 829
 830 #if 0
 831     // we can benchmark performance, should go into a setting later
 832     CGContextSetShouldAntialias( m_cgContext , false ) ;
 833 #endif
 834
 835     if ( fill || stroke )
 836     {
 837         // setup brushes
 838         m_mode = kCGPathFill ; // just a default
 839
 840         if ( fill )
 841         {
 842             if ( brush.GetStyle() == wxSOLID )
 843             {
 844                 CGContextSetRGBFillColor( m_cgContext , brush.GetColour().Red() / 255.0 , brush.GetColour().Green() / 255.0 ,
 845                     brush.GetColour().Blue() / 255.0 , brush.GetColour().Alpha() / 255.0 ) ;
 846             }
 847             else if ( brush.IsHatch() )
 848             {
 849                 wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) ) ;
 850                 CGContextSetFillColorSpace( m_cgContext , patternSpace ) ;
 851                 wxMacCFRefHolder<CGPatternRef> pattern( *( new HatchPattern( brush.GetStyle() , CGContextGetCTM( m_cgContext ) ) ) );
 852
 853                 CGFloat  colorArray[4] = { brush.GetColour().Red() / 255.0 , brush.GetColour().Green() / 255.0 ,
 854                     brush.GetColour().Blue() / 255.0 , brush.GetColour().Alpha() / 255.0 } ;
 855
 856                 CGContextSetFillPattern( m_cgContext, pattern , colorArray ) ;
 857             }
 858             else
 859             {
 860                 // now brush is a bitmap
 861                 CGFloat  alphaArray[1] = { 1.0 } ;
 862                 wxBitmap* bmp = brush.GetStipple() ;
 863                 if ( bmp && bmp->Ok() )
 864                 {
 865                     wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( NULL ) ) ;
 866                     CGContextSetFillColorSpace( m_cgContext , patternSpace ) ;
 867                     wxMacCFRefHolder<CGPatternRef> pattern( *( new ImagePattern( bmp , CGContextGetCTM( m_cgContext ) ) ) );
 868                     CGContextSetFillPattern( m_cgContext, pattern , alphaArray ) ;
 869                 }
 870             }
 871
 872             m_mode = kCGPathFill ;
 873         }
 874
 875         if ( fill && stroke )
 876             m_mode = kCGPathFillStroke ;
 877         else if ( stroke )
 878             m_mode = kCGPathStroke ;
 879     }
 880 }
 881
 882 void wxMacCGContext::DrawText( const wxString &str, wxCoord x, wxCoord y, double angle )
 883 {
 884     OSStatus status = noErr ;
 885     ATSUTextLayout atsuLayout ;
 886     UniCharCount chars = str.length() ;
 887     UniChar* ubuf = NULL ;
 888
 889 #if SIZEOF_WCHAR_T == 4
 890     wxMBConvUTF16 converter ;
 891 #if wxUSE_UNICODE
 892     size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 ) ;
 893     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
 894     converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 ) ;
 895 #else
 896     const wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
 897     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
 898     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
 899     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
 900 #endif
 901     chars = unicharlen / 2 ;
 902 #else
 903 #if wxUSE_UNICODE
 904     ubuf = (UniChar*) str.wc_str() ;
 905 #else
 906     wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
 907     chars = wxWcslen( wchar.data() ) ;
 908     ubuf = (UniChar*) wchar.data() ;
 909 #endif
 910 #endif
 911
 912     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
 913         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
 914
 915     wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
 916
 917     status = ::ATSUSetTransientFontMatching( atsuLayout , true ) ;
 918     wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
 919
 920     int iAngle = int( angle );
 921     if ( abs(iAngle) > 0 )
 922     {
 923         Fixed atsuAngle = IntToFixed( iAngle ) ;
 924         ATSUAttributeTag atsuTags[] =
 925         {
 926             kATSULineRotationTag ,
 927         } ;
 928         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 929         {
 930             sizeof( Fixed ) ,
 931         } ;
 932         ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 933         {
 934             &atsuAngle ,
 935         } ;
 936         status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
 937             atsuTags, atsuSizes, atsuValues ) ;
 938     }
 939
 940     {
 941         ATSUAttributeTag atsuTags[] =
 942         {
 943             kATSUCGContextTag ,
 944         } ;
 945         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 946         {
 947             sizeof( CGContextRef ) ,
 948         } ;
 949         ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
 950         {
 951             &m_cgContext ,
 952         } ;
 953         status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
 954             atsuTags, atsuSizes, atsuValues ) ;
 955     }
 956
 957     ATSUTextMeasurement textBefore, textAfter ;
 958     ATSUTextMeasurement ascent, descent ;
 959
 960     status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
 961         &textBefore , &textAfter, &ascent , &descent );
 962
 963     wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
 964
 965     Rect rect ;
 966 /*
 967     // TODO
 968     if ( m_backgroundMode == wxSOLID )
 969     {
 970         wxGraphicPath* path = m_graphicContext->CreatePath() ;
 971         path->MoveToPoint( drawX , drawY ) ;
 972         path->AddLineToPoint(
 973             (int) (drawX + sin(angle / RAD2DEG) * FixedToInt(ascent + descent)) ,
 974             (int) (drawY + cos(angle / RAD2DEG) * FixedToInt(ascent + descent)) ) ;
 975         path->AddLineToPoint(
 976             (int) (drawX + sin(angle / RAD2DEG) * FixedToInt(ascent + descent ) + cos(angle / RAD2DEG) * FixedToInt(textAfter)) ,
 977             (int) (drawY + cos(angle / RAD2DEG) * FixedToInt(ascent + descent) - sin(angle / RAD2DEG) * FixedToInt(textAfter)) ) ;
 978         path->AddLineToPoint(
 979             (int) (drawX + cos(angle / RAD2DEG) * FixedToInt(textAfter)) ,
 980             (int) (drawY - sin(angle / RAD2DEG) * FixedToInt(textAfter)) ) ;
 981
 982         m_graphicContext->FillPath( path , m_textBackgroundColour ) ;
 983         delete path ;
 984     }
 985 */
 986     x += (int)(sin(angle / RAD2DEG) * FixedToInt(ascent));
 987     y += (int)(cos(angle / RAD2DEG) * FixedToInt(ascent));
 988
 989     status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
 990         IntToFixed(x) , IntToFixed(y) , &rect );
 991     wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
 992
 993     CGContextSaveGState(m_cgContext);
 994     CGContextTranslateCTM(m_cgContext, x, y);
 995     CGContextScaleCTM(m_cgContext, 1, -1);
 996     status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
 997         IntToFixed(0) , IntToFixed(0) );
 998
 999     wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
1000
1001     CGContextRestoreGState(m_cgContext) ;
1002
1003     ::ATSUDisposeTextLayout(atsuLayout);
1004
1005 #if SIZEOF_WCHAR_T == 4
1006     free( ubuf ) ;
1007 #endif
1008 }
1009
1010 void wxMacCGContext::GetTextExtent( const wxString &str, wxCoord *width, wxCoord *height,
1011                             wxCoord *descent, wxCoord *externalLeading ) const
1012 {
1013     wxCHECK_RET( m_macATSUIStyle != NULL, wxT("wxDC(cg)::DoGetTextExtent - no valid font set") ) ;
1014
1015     OSStatus status = noErr ;
1016
1017     ATSUTextLayout atsuLayout ;
1018     UniCharCount chars = str.length() ;
1019     UniChar* ubuf = NULL ;
1020
1021 #if SIZEOF_WCHAR_T == 4
1022     wxMBConvUTF16 converter ;
1023 #if wxUSE_UNICODE
1024     size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 ) ;
1025     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1026     converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 ) ;
1027 #else
1028     const wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1029     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
1030     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1031     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
1032 #endif
1033     chars = unicharlen / 2 ;
1034 #else
1035 #if wxUSE_UNICODE
1036     ubuf = (UniChar*) str.wc_str() ;
1037 #else
1038     wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1039     chars = wxWcslen( wchar.data() ) ;
1040     ubuf = (UniChar*) wchar.data() ;
1041 #endif
1042 #endif
1043
1044     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1045         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
1046
1047     wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
1048
1049     ATSUTextMeasurement textBefore, textAfter ;
1050     ATSUTextMeasurement textAscent, textDescent ;
1051
1052     status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1053         &textBefore , &textAfter, &textAscent , &textDescent );
1054
1055     if ( height )
1056         *height = FixedToInt(textAscent + textDescent) ;
1057     if ( descent )
1058         *descent = FixedToInt(textDescent) ;
1059     if ( externalLeading )
1060         *externalLeading = 0 ;
1061     if ( width )
1062         *width = FixedToInt(textAfter - textBefore) ;
1063
1064     ::ATSUDisposeTextLayout(atsuLayout);
1065 }
1066
1067 void wxMacCGContext::GetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
1068 {
1069     widths.Empty();
1070     widths.Add(0, text.length());
1071
1072     if (text.empty())
1073         return ;
1074
1075     ATSUTextLayout atsuLayout ;
1076     UniCharCount chars = text.length() ;
1077     UniChar* ubuf = NULL ;
1078
1079 #if SIZEOF_WCHAR_T == 4
1080     wxMBConvUTF16 converter ;
1081 #if wxUSE_UNICODE
1082     size_t unicharlen = converter.WC2MB( NULL , text.wc_str() , 0 ) ;
1083     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1084     converter.WC2MB( (char*) ubuf , text.wc_str(), unicharlen + 2 ) ;
1085 #else
1086     const wxWCharBuffer wchar = text.wc_str( wxConvLocal ) ;
1087     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
1088     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1089     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
1090 #endif
1091     chars = unicharlen / 2 ;
1092 #else
1093 #if wxUSE_UNICODE
1094     ubuf = (UniChar*) text.wc_str() ;
1095 #else
1096     wxWCharBuffer wchar = text.wc_str( wxConvLocal ) ;
1097     chars = wxWcslen( wchar.data() ) ;
1098     ubuf = (UniChar*) wchar.data() ;
1099 #endif
1100 #endif
1101
1102     ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1103         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
1104
1105     for ( int pos = 0; pos < (int)chars; pos ++ )
1106     {
1107         unsigned long actualNumberOfBounds = 0;
1108         ATSTrapezoid glyphBounds;
1109
1110         // We get a single bound, since the text should only require one. If it requires more, there is an issue
1111         OSStatus result;
1112         result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
1113             kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
1114         if (result != noErr || actualNumberOfBounds != 1 )
1115             return ;
1116
1117         widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
1118         //unsigned char uch = s[i];
1119     }
1120
1121     ::ATSUDisposeTextLayout(atsuLayout);
1122 }
1123
1124 void wxMacCGContext::SetFont( const wxFont &font )
1125 {
1126     if ( m_macATSUIStyle )
1127     {
1128         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
1129         m_macATSUIStyle = NULL ;
1130     }
1131
1132     if ( font.Ok() )
1133     {
1134         OSStatus status ;
1135
1136         status = ATSUCreateAndCopyStyle( (ATSUStyle) font.MacGetATSUStyle() , (ATSUStyle*) &m_macATSUIStyle ) ;
1137
1138         wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") ) ;
1139
1140         // we need the scale here ...
1141
1142         Fixed atsuSize = IntToFixed( int( /*m_scaleY*/ 1 * font.MacGetFontSize()) ) ;
1143         RGBColor atsuColor = MAC_WXCOLORREF( m_textForegroundColor.GetPixel() ) ;
1144         ATSUAttributeTag atsuTags[] =
1145         {
1146                 kATSUSizeTag ,
1147                 kATSUColorTag ,
1148         } ;
1149         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1150         {
1151                 sizeof( Fixed ) ,
1152                 sizeof( RGBColor ) ,
1153         } ;
1154         ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1155         {
1156                 &atsuSize ,
1157                 &atsuColor ,
1158         } ;
1159
1160         status = ::ATSUSetAttributes(
1161             (ATSUStyle)m_macATSUIStyle, sizeof(atsuTags) / sizeof(ATSUAttributeTag) ,
1162             atsuTags, atsuSizes, atsuValues);
1163
1164         wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") ) ;
1165     }
1166 }
1167
1168
1169 #pragma mark -
1170
1171 wxDC::wxDC()
1172 {
1173     m_ok = false ;
1174     m_colour = true;
1175     m_mm_to_pix_x = mm2pt;
1176     m_mm_to_pix_y = mm2pt;
1177
1178     m_externalDeviceOriginX = 0;
1179     m_externalDeviceOriginY = 0;
1180     m_logicalScaleX = 1.0;
1181     m_logicalScaleY = 1.0;
1182     m_userScaleX = 1.0;
1183     m_userScaleY = 1.0;
1184     m_scaleX = 1.0;
1185     m_scaleY = 1.0;
1186     m_needComputeScaleX =
1187     m_needComputeScaleY = false;
1188
1189     m_macPort = 0 ;
1190     m_macLocalOrigin.x =
1191     m_macLocalOrigin.y = 0 ;
1192
1193     m_pen = *wxBLACK_PEN;
1194     m_font = *wxNORMAL_FONT;
1195     m_brush = *wxWHITE_BRUSH;
1196
1197     m_macATSUIStyle = NULL ;
1198     m_graphicContext = NULL ;
1199 }
1200
1201 wxDC::~wxDC()
1202 {
1203     if ( m_macATSUIStyle )
1204     {
1205         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
1206         m_macATSUIStyle = NULL ;
1207     }
1208
1209     delete m_graphicContext ;
1210 }
1211
1212 void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask )
1213 {
1214     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawBitmap - invalid DC") );
1215     wxCHECK_RET( bmp.Ok(), wxT("wxDC(cg)::DoDrawBitmap - invalid bitmap") );
1216
1217     wxCoord xx = XLOG2DEVMAC(x);
1218     wxCoord yy = YLOG2DEVMAC(y);
1219     wxCoord w = bmp.GetWidth();
1220     wxCoord h = bmp.GetHeight();
1221     wxCoord ww = XLOG2DEVREL(w);
1222     wxCoord hh = YLOG2DEVREL(h);
1223
1224     if ( bmp.GetDepth()==1 )
1225     {
1226         wxGraphicPath* path = m_graphicContext->CreatePath() ;
1227         path->AddRectangle( xx , yy , ww , hh ) ;
1228         m_graphicContext->FillPath( path , m_textBackgroundColour, wxODDEVEN_RULE) ;
1229         delete path;
1230         m_graphicContext->DrawBitmap( bmp, xx , yy , ww , hh ) ;
1231     }
1232     else
1233     {
1234         m_graphicContext->DrawBitmap( bmp, xx , yy , ww , hh ) ;
1235     }
1236 }
1237
1238 void wxDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )
1239 {
1240     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawIcon - invalid DC") );
1241     wxCHECK_RET( icon.Ok(), wxT("wxDC(cg)::DoDrawIcon - invalid icon") );
1242
1243     wxCoord xx = XLOG2DEVMAC(x);
1244     wxCoord yy = YLOG2DEVMAC(y);
1245     wxCoord w = icon.GetWidth();
1246     wxCoord h = icon.GetHeight();
1247     wxCoord ww = XLOG2DEVREL(w);
1248     wxCoord hh = YLOG2DEVREL(h);
1249
1250     m_graphicContext->DrawIcon( icon , xx, yy, ww, hh ) ;
1251 }
1252
1253 void wxDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
1254 {
1255     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoSetClippingRegion - invalid DC") );
1256
1257     wxCoord xx, yy, ww, hh;
1258     xx = XLOG2DEVMAC(x);
1259     yy = YLOG2DEVMAC(y);
1260     ww = XLOG2DEVREL(width);
1261     hh = YLOG2DEVREL(height);
1262
1263     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1264     CGRect clipRect = CGRectMake( xx , yy , ww, hh ) ;
1265     CGContextClipToRect( cgContext , clipRect ) ;
1266
1267 //    SetRectRgn( (RgnHandle) m_macCurrentClipRgn , xx , yy , xx + ww , yy + hh ) ;
1268 //    SectRgn( (RgnHandle) m_macCurrentClipRgn , (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
1269
1270     if ( m_clipping )
1271     {
1272         m_clipX1 = wxMax( m_clipX1, xx );
1273         m_clipY1 = wxMax( m_clipY1, yy );
1274         m_clipX2 = wxMin( m_clipX2, (xx + ww) );
1275         m_clipY2 = wxMin( m_clipY2, (yy + hh) );
1276     }
1277     else
1278     {
1279         m_clipping = true;
1280
1281         m_clipX1 = xx;
1282         m_clipY1 = yy;
1283         m_clipX2 = xx + ww;
1284         m_clipY2 = yy + hh;
1285     }
1286
1287     // TODO: as soon as we don't reset the context for each operation anymore
1288     // we have to update the context as well
1289 }
1290
1291 void wxDC::DoSetClippingRegionAsRegion( const wxRegion &region )
1292 {
1293     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoSetClippingRegionAsRegion - invalid DC") );
1294
1295     if (region.Empty())
1296     {
1297         DestroyClippingRegion();
1298         return;
1299     }
1300
1301     wxCoord x, y, w, h;
1302     region.GetBox( x, y, w, h );
1303     wxCoord xx, yy, ww, hh;
1304     xx = XLOG2DEVMAC(x);
1305     yy = YLOG2DEVMAC(y);
1306     ww = XLOG2DEVREL(w);
1307     hh = YLOG2DEVREL(h);
1308
1309     // if we have a scaling that we cannot map onto native regions
1310     // we must use the box
1311     if ( ww != w || hh != h )
1312     {
1313         wxDC::DoSetClippingRegion( x, y, w, h );
1314     }
1315     else
1316     {
1317         if ( m_clipping )
1318         {
1319             m_clipX1 = wxMax( m_clipX1, xx );
1320             m_clipY1 = wxMax( m_clipY1, yy );
1321             m_clipX2 = wxMin( m_clipX2, (xx + ww) );
1322             m_clipY2 = wxMin( m_clipY2, (yy + hh) );
1323         }
1324         else
1325         {
1326             m_clipping = true;
1327
1328             m_clipX1 = xx;
1329             m_clipY1 = yy;
1330             m_clipX2 = xx + ww;
1331             m_clipY2 = yy + hh;
1332         }
1333     }
1334 }
1335
1336 void wxDC::DestroyClippingRegion()
1337 {
1338     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1339     CGContextRestoreGState( cgContext );
1340     CGContextSaveGState( cgContext );
1341
1342     m_graphicContext->SetPen( m_pen ) ;
1343     m_graphicContext->SetBrush( m_brush ) ;
1344
1345     m_clipping = false;
1346 }
1347
1348 void wxDC::DoGetSizeMM( int* width, int* height ) const
1349 {
1350     int w = 0, h = 0;
1351
1352     GetSize( &w, &h );
1353     if (width)
1354         *width = long( double(w) / (m_scaleX * m_mm_to_pix_x) );
1355     if (height)
1356         *height = long( double(h) / (m_scaleY * m_mm_to_pix_y) );
1357 }
1358
1359 void wxDC::SetTextForeground( const wxColour &col )
1360 {
1361     wxCHECK_RET( Ok(), wxT("wxDC(cg)::SetTextForeground - invalid DC") );
1362
1363     if ( col != m_textForegroundColour )
1364     {
1365         m_textForegroundColour = col;
1366         m_graphicContext->SetTextColor( col );
1367         // in the current implementation the font contains the text color
1368         m_graphicContext->SetFont(m_font);
1369     }
1370 }
1371
1372 void wxDC::SetTextBackground( const wxColour &col )
1373 {
1374     wxCHECK_RET( Ok(), wxT("wxDC(cg)::SetTextBackground - invalid DC") );
1375
1376     m_textBackgroundColour = col;
1377 }
1378
1379 void wxDC::SetMapMode( int mode )
1380 {
1381     switch (mode)
1382     {
1383     case wxMM_TWIPS:
1384         SetLogicalScale( twips2mm * m_mm_to_pix_x, twips2mm * m_mm_to_pix_y );
1385         break;
1386
1387     case wxMM_POINTS:
1388         SetLogicalScale( pt2mm * m_mm_to_pix_x, pt2mm * m_mm_to_pix_y );
1389         break;
1390
1391     case wxMM_METRIC:
1392         SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y );
1393         break;
1394
1395     case wxMM_LOMETRIC:
1396         SetLogicalScale( m_mm_to_pix_x / 10.0, m_mm_to_pix_y / 10.0 );
1397         break;
1398
1399     case wxMM_TEXT:
1400     default:
1401         SetLogicalScale( 1.0, 1.0 );
1402         break;
1403     }
1404
1405     if (mode != wxMM_TEXT)
1406     {
1407         m_needComputeScaleX =
1408         m_needComputeScaleY = true;
1409     }
1410 }
1411
1412 void wxDC::SetUserScale( double x, double y )
1413 {
1414     // allow negative ? -> no
1415     m_userScaleX = x;
1416     m_userScaleY = y;
1417     ComputeScaleAndOrigin();
1418 }
1419
1420 void wxDC::SetLogicalScale( double x, double y )
1421 {
1422     // allow negative ?
1423     m_logicalScaleX = x;
1424     m_logicalScaleY = y;
1425     ComputeScaleAndOrigin();
1426 }
1427
1428 void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y )
1429 {
1430     m_logicalOriginX = x * m_signX;   // is this still correct ?
1431     m_logicalOriginY = y * m_signY;
1432     ComputeScaleAndOrigin();
1433 }
1434
1435 void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y )
1436 {
1437     m_externalDeviceOriginX = x;
1438     m_externalDeviceOriginY = y;
1439     ComputeScaleAndOrigin();
1440 }
1441
1442 void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
1443 {
1444     m_signX = (xLeftRight ?  1 : -1);
1445     m_signY = (yBottomUp ? -1 :  1);
1446     ComputeScaleAndOrigin();
1447 }
1448
1449 wxSize wxDC::GetPPI() const
1450 {
1451     return wxSize(72, 72);
1452 }
1453
1454 int wxDC::GetDepth() const
1455 {
1456     return 32;
1457 }
1458
1459 void wxDC::ComputeScaleAndOrigin()
1460 {
1461     // CMB: copy scale to see if it changes
1462     double origScaleX = m_scaleX;
1463     double origScaleY = m_scaleY;
1464     m_scaleX = m_logicalScaleX * m_userScaleX;
1465     m_scaleY = m_logicalScaleY * m_userScaleY;
1466     m_deviceOriginX = m_externalDeviceOriginX;
1467     m_deviceOriginY = m_externalDeviceOriginY;
1468
1469     // CMB: if scale has changed call SetPen to recalulate the line width
1470     if (m_scaleX != origScaleX || m_scaleY != origScaleY)
1471     {
1472         // this is a bit artificial, but we need to force wxDC to think
1473         // the pen has changed
1474         wxPen pen( GetPen() );
1475
1476         m_pen = wxNullPen;
1477         SetPen( pen );
1478     }
1479 }
1480
1481 void wxDC::SetPalette( const wxPalette& palette )
1482 {
1483 }
1484
1485 void wxDC::SetBackgroundMode( int mode )
1486 {
1487     m_backgroundMode = mode ;
1488 }
1489
1490 void wxDC::SetFont( const wxFont &font )
1491 {
1492     m_font = font;
1493     if ( m_graphicContext )
1494         m_graphicContext->SetFont( font ) ;
1495 }
1496
1497 void wxDC::SetPen( const wxPen &pen )
1498 {
1499     if ( m_pen == pen )
1500         return ;
1501
1502     m_pen = pen;
1503     if ( m_graphicContext )
1504     {
1505         if ( m_pen.GetStyle() == wxSOLID || m_pen.GetStyle() == wxTRANSPARENT )
1506         {
1507             m_graphicContext->SetPen( m_pen ) ;
1508         }
1509         else
1510         {
1511             // we have to compensate for moved device origins etc. otherwise patterned pens are standing still
1512             // eg when using a wxScrollWindow and scrolling around
1513             int origX = XLOG2DEVMAC( 0 ) ;
1514             int origY = YLOG2DEVMAC( 0 ) ;
1515             m_graphicContext->Translate( origX , origY ) ;
1516             m_graphicContext->SetPen( m_pen ) ;
1517             m_graphicContext->Translate( -origX , -origY ) ;
1518         }
1519     }
1520 }
1521
1522 void wxDC::SetBrush( const wxBrush &brush )
1523 {
1524     if (m_brush == brush)
1525         return;
1526
1527     m_brush = brush;
1528     if ( m_graphicContext )
1529     {
1530         if ( brush.GetStyle() == wxSOLID || brush.GetStyle() == wxTRANSPARENT )
1531         {
1532             m_graphicContext->SetBrush( m_brush ) ;
1533         }
1534         else
1535         {
1536             // we have to compensate for moved device origins etc. otherwise patterned brushes are standing still
1537             // eg when using a wxScrollWindow and scrolling around
1538             int origX = XLOG2DEVMAC(0) ;
1539             int origY = YLOG2DEVMAC(0) ;
1540             m_graphicContext->Translate( origX , origY ) ;
1541             m_graphicContext->SetBrush( m_brush ) ;
1542             m_graphicContext->Translate( -origX , -origY ) ;
1543         }
1544     }
1545 }
1546
1547 void wxDC::SetBackground( const wxBrush &brush )
1548 {
1549     if (m_backgroundBrush == brush)
1550         return;
1551
1552     m_backgroundBrush = brush;
1553     if (!m_backgroundBrush.Ok())
1554         return;
1555 }
1556
1557 void wxDC::SetLogicalFunction( int function )
1558 {
1559     if (m_logicalFunction == function)
1560         return;
1561
1562     m_logicalFunction = function ;
1563 #if wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
1564     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1565     if ( m_logicalFunction == wxCOPY )
1566         CGContextSetBlendMode( cgContext, kCGBlendModeNormal ) ;
1567     else if ( m_logicalFunction == wxINVERT )
1568         CGContextSetBlendMode( cgContext, kCGBlendModeExclusion ) ;
1569     else
1570         CGContextSetBlendMode( cgContext, kCGBlendModeNormal ) ;
1571 #endif
1572 }
1573
1574 extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
1575                           const wxColour & col, int style);
1576
1577 bool wxDC::DoFloodFill(wxCoord x, wxCoord y,
1578                        const wxColour& col, int style)
1579 {
1580     return wxDoFloodFill(this, x, y, col, style);
1581 }
1582
1583 bool wxDC::DoGetPixel( wxCoord x, wxCoord y, wxColour *col ) const
1584 {
1585     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoGetPixel - invalid DC") );
1586
1587     RGBColor colour;
1588 #ifndef __LP64__
1589     wxMacPortSaver helper((CGrafPtr)m_macPort) ;
1590     // NB: GetCPixel is a deprecated QD call, and a slow one at that
1591     GetCPixel(
1592         XLOG2DEVMAC(x) + m_macLocalOriginInPort.x - m_macLocalOrigin.x,
1593         YLOG2DEVMAC(y) + m_macLocalOriginInPort.y - m_macLocalOrigin.y, &colour );
1594 #endif
1595     // convert from Mac colour to wx
1596     col->Set( colour.red >> 8, colour.green >> 8, colour.blue >> 8 );
1597
1598     return true ;
1599 }
1600
1601 void wxDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
1602 {
1603     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawLine - invalid DC") );
1604
1605 #if !wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
1606     if ( m_logicalFunction != wxCOPY )
1607         return ;
1608 #endif
1609
1610     wxCoord xx1 = XLOG2DEVMAC(x1) ;
1611     wxCoord yy1 = YLOG2DEVMAC(y1) ;
1612     wxCoord xx2 = XLOG2DEVMAC(x2) ;
1613     wxCoord yy2 = YLOG2DEVMAC(y2) ;
1614
1615     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1616     path->MoveToPoint( xx1, yy1 ) ;
1617     path->AddLineToPoint( xx2 , yy2 ) ;
1618     path->CloseSubpath() ;
1619     m_graphicContext->StrokePath( path ) ;
1620     delete path ;
1621
1622     CalcBoundingBox(x1, y1);
1623     CalcBoundingBox(x2, y2);
1624 }
1625
1626 void wxDC::DoCrossHair( wxCoord x, wxCoord y )
1627 {
1628     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoCrossHair - invalid DC") );
1629
1630     if ( m_logicalFunction != wxCOPY )
1631         return ;
1632
1633     int w = 0, h = 0;
1634
1635     GetSize( &w, &h );
1636     wxCoord xx = XLOG2DEVMAC(x);
1637     wxCoord yy = YLOG2DEVMAC(y);
1638
1639     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1640     path->MoveToPoint( XLOG2DEVMAC(0), yy ) ;
1641     path->AddLineToPoint( XLOG2DEVMAC(w), yy ) ;
1642     path->CloseSubpath() ;
1643     path->MoveToPoint( xx, YLOG2DEVMAC(0) ) ;
1644     path->AddLineToPoint( xx, YLOG2DEVMAC(h) ) ;
1645     path->CloseSubpath() ;
1646     m_graphicContext->StrokePath( path ) ;
1647     delete path ;
1648
1649     CalcBoundingBox(x, y);
1650     CalcBoundingBox(x + w, y + h);
1651 }
1652
1653 void wxDC::DoDrawArc( wxCoord x1, wxCoord y1,
1654                       wxCoord x2, wxCoord y2,
1655                       wxCoord xc, wxCoord yc )
1656 {
1657     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawArc - invalid DC") );
1658
1659     if ( m_logicalFunction != wxCOPY )
1660         return ;
1661
1662     wxCoord xx1 = XLOG2DEVMAC(x1);
1663     wxCoord yy1 = YLOG2DEVMAC(y1);
1664     wxCoord xx2 = XLOG2DEVMAC(x2);
1665     wxCoord yy2 = YLOG2DEVMAC(y2);
1666     wxCoord xxc = XLOG2DEVMAC(xc);
1667     wxCoord yyc = YLOG2DEVMAC(yc);
1668
1669     double dx = xx1 - xxc;
1670     double dy = yy1 - yyc;
1671     double radius = sqrt((double)(dx * dx + dy * dy));
1672     wxCoord rad = (wxCoord)radius;
1673     double sa, ea;
1674     if (xx1 == xx2 && yy1 == yy2)
1675     {
1676         sa = 0.0;
1677         ea = 360.0;
1678     }
1679     else if (radius == 0.0)
1680     {
1681         sa = ea = 0.0;
1682     }
1683     else
1684     {
1685         sa = (xx1 - xxc == 0) ?
1686             (yy1 - yyc < 0) ? 90.0 : -90.0 :
1687         -atan2(double(yy1 - yyc), double(xx1 - xxc)) * RAD2DEG;
1688         ea = (xx2 - xxc == 0) ?
1689             (yy2 - yyc < 0) ? 90.0 : -90.0 :
1690         -atan2(double(yy2 - yyc), double(xx2 - xxc)) * RAD2DEG;
1691     }
1692
1693     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
1694
1695     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1696     m_graphicContext->PushState() ;
1697     m_graphicContext->Translate( xxc, yyc ) ;
1698     m_graphicContext->Scale( 1, -1 ) ;
1699     if ( fill )
1700         path->MoveToPoint( 0, 0 ) ;
1701     path->AddArc( 0, 0, rad , DegToRad(sa) , DegToRad(ea), false ) ;
1702     if ( fill )
1703         path->AddLineToPoint( 0, 0 ) ;
1704     m_graphicContext->DrawPath( path ) ;
1705     m_graphicContext->PopState() ;
1706     delete path ;
1707 }
1708
1709 void wxDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord w, wxCoord h,
1710                               double sa, double ea )
1711 {
1712     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawEllipticArc - invalid DC") );
1713
1714     if ( m_logicalFunction != wxCOPY )
1715         return ;
1716
1717     wxCoord xx = XLOG2DEVMAC(x);
1718     wxCoord yy = YLOG2DEVMAC(y);
1719     wxCoord ww = m_signX * XLOG2DEVREL(w);
1720     wxCoord hh = m_signY * YLOG2DEVREL(h);
1721
1722     // handle -ve width and/or height
1723     if (ww < 0)
1724     {
1725         ww = -ww;
1726         xx = xx - ww;
1727     }
1728     if (hh < 0)
1729     {
1730         hh = -hh;
1731         yy = yy - hh;
1732     }
1733
1734     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
1735
1736     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1737     m_graphicContext->PushState() ;
1738     m_graphicContext->Translate( xx + ww / 2, yy + hh / 2 ) ;
1739     m_graphicContext->Scale( 1 * ww / 2 , -1 * hh / 2 ) ;
1740     if ( fill )
1741         path->MoveToPoint( 0, 0 ) ;
1742     path->AddArc( 0, 0, 1 , DegToRad(sa) , DegToRad(ea), false ) ;
1743     if ( fill )
1744         path->AddLineToPoint( 0, 0 ) ;
1745     m_graphicContext->DrawPath( path ) ;
1746     m_graphicContext->PopState() ;
1747     delete path ;
1748 }
1749
1750 void wxDC::DoDrawPoint( wxCoord x, wxCoord y )
1751 {
1752     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawPoint - invalid DC") );
1753
1754     DoDrawLine( x , y , x + 1 , y + 1 ) ;
1755 }
1756
1757 void wxDC::DoDrawLines(int n, wxPoint points[],
1758                         wxCoord xoffset, wxCoord yoffset)
1759 {
1760     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawLines - invalid DC") );
1761
1762 #if !wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
1763     if ( m_logicalFunction != wxCOPY )
1764         return ;
1765 #endif
1766
1767     wxCoord x1, x2 , y1 , y2 ;
1768     x1 = XLOG2DEVMAC(points[0].x + xoffset);
1769     y1 = YLOG2DEVMAC(points[0].y + yoffset);
1770     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1771     path->MoveToPoint( x1 , y1 ) ;
1772     for (int i = 1; i < n; i++)
1773     {
1774         x2 = XLOG2DEVMAC(points[i].x + xoffset);
1775         y2 = YLOG2DEVMAC(points[i].y + yoffset);
1776
1777         path->AddLineToPoint( x2 , y2 ) ;
1778     }
1779
1780     m_graphicContext->StrokePath( path ) ;
1781     delete path ;
1782 }
1783
1784 #if wxUSE_SPLINES
1785 void wxDC::DoDrawSpline(wxList *points)
1786 {
1787     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawSpline - invalid DC") );
1788
1789     if ( m_logicalFunction != wxCOPY )
1790         return ;
1791
1792     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1793
1794     wxList::compatibility_iterator node = points->GetFirst();
1795     if (node == wxList::compatibility_iterator())
1796         // empty list
1797         return;
1798
1799     wxPoint *p = (wxPoint *)node->GetData();
1800
1801     wxCoord x1 = p->x;
1802     wxCoord y1 = p->y;
1803
1804     node = node->GetNext();
1805     p = (wxPoint *)node->GetData();
1806
1807     wxCoord x2 = p->x;
1808     wxCoord y2 = p->y;
1809     wxCoord cx1 = ( x1 + x2 ) / 2;
1810     wxCoord cy1 = ( y1 + y2 ) / 2;
1811
1812     path->MoveToPoint( XLOG2DEVMAC( x1 ) , YLOG2DEVMAC( y1 ) ) ;
1813     path->AddLineToPoint( XLOG2DEVMAC( cx1 ) , YLOG2DEVMAC( cy1 ) ) ;
1814
1815 #if !wxUSE_STL
1816     while ((node = node->GetNext()) != NULL)
1817 #else
1818     while ((node = node->GetNext()))
1819 #endif // !wxUSE_STL
1820     {
1821         p = (wxPoint *)node->GetData();
1822         x1 = x2;
1823         y1 = y2;
1824         x2 = p->x;
1825         y2 = p->y;
1826         wxCoord cx4 = (x1 + x2) / 2;
1827         wxCoord cy4 = (y1 + y2) / 2;
1828
1829         path->AddQuadCurveToPoint(
1830             XLOG2DEVMAC( x1 ) , YLOG2DEVMAC( y1 ) ,
1831             XLOG2DEVMAC( cx4 ) , YLOG2DEVMAC( cy4 ) ) ;
1832
1833         cx1 = cx4;
1834         cy1 = cy4;
1835     }
1836
1837     path->AddLineToPoint( XLOG2DEVMAC( x2 ) , YLOG2DEVMAC( y2 ) ) ;
1838
1839     m_graphicContext->StrokePath( path ) ;
1840     delete path ;
1841 }
1842 #endif
1843
1844 void wxDC::DoDrawPolygon( int n, wxPoint points[],
1845                           wxCoord xoffset, wxCoord yoffset,
1846                           int fillStyle )
1847 {
1848     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawPolygon - invalid DC") );
1849
1850     if ( n <= 0 || (m_brush.GetStyle() == wxTRANSPARENT && m_pen.GetStyle() == wxTRANSPARENT ) )
1851         return ;
1852     if ( m_logicalFunction != wxCOPY )
1853         return ;
1854
1855     wxCoord x1, x2 , y1 , y2 ;
1856     x2 = x1 = XLOG2DEVMAC(points[0].x + xoffset);
1857     y2 = y1 = YLOG2DEVMAC(points[0].y + yoffset);
1858
1859     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1860     path->MoveToPoint( x1 , y1 ) ;
1861     for (int i = 1; i < n; i++)
1862     {
1863         x2 = XLOG2DEVMAC(points[i].x + xoffset);
1864         y2 = YLOG2DEVMAC(points[i].y + yoffset);
1865
1866         path->AddLineToPoint( x2 , y2 ) ;
1867     }
1868
1869     if ( x1 != x2 || y1 != y2 )
1870         path->AddLineToPoint( x1, y1 ) ;
1871
1872     path->CloseSubpath() ;
1873     m_graphicContext->DrawPath( path , fillStyle ) ;
1874
1875     delete path ;
1876 }
1877
1878 void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1879 {
1880     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRectangle - invalid DC") );
1881
1882     if ( m_logicalFunction != wxCOPY )
1883         return ;
1884
1885     wxCoord xx = XLOG2DEVMAC(x);
1886     wxCoord yy = YLOG2DEVMAC(y);
1887     wxCoord ww = m_signX * XLOG2DEVREL(width);
1888     wxCoord hh = m_signY * YLOG2DEVREL(height);
1889
1890     // CMB: draw nothing if transformed w or h is 0
1891     if (ww == 0 || hh == 0)
1892         return;
1893
1894     // CMB: handle -ve width and/or height
1895     if (ww < 0)
1896     {
1897         ww = -ww;
1898         xx = xx - ww;
1899     }
1900     if (hh < 0)
1901     {
1902         hh = -hh;
1903         yy = yy - hh;
1904     }
1905
1906     int penwidth = m_pen.GetWidth();
1907     if ( penwidth == 0 )
1908         penwidth = 1 ;
1909     if ( m_pen.GetStyle() == wxTRANSPARENT )
1910         penwidth = 0 ;
1911
1912     bool offset = ( penwidth % 2 ) == 1 ;
1913
1914     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1915     // if we are offsetting the entire rectangle is moved 0.5, so the border line gets off by 1
1916     if ( offset )
1917         path->AddRectangle( xx , yy , ww-1 , hh-1 ) ;
1918     else
1919         path->AddRectangle( xx , yy , ww , hh ) ;
1920
1921     m_graphicContext->DrawPath( path ) ;
1922     delete path ;
1923 }
1924
1925 void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y,
1926                                    wxCoord width, wxCoord height,
1927                                    double radius)
1928 {
1929     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRoundedRectangle - invalid DC") );
1930
1931     if ( m_logicalFunction != wxCOPY )
1932         return ;
1933
1934     if (radius < 0.0)
1935         radius = - radius * ((width < height) ? width : height);
1936     wxCoord xx = XLOG2DEVMAC(x);
1937     wxCoord yy = YLOG2DEVMAC(y);
1938     wxCoord ww = m_signX * XLOG2DEVREL(width);
1939     wxCoord hh = m_signY * YLOG2DEVREL(height);
1940
1941     // CMB: draw nothing if transformed w or h is 0
1942     if (ww == 0 || hh == 0)
1943         return;
1944
1945     // CMB: handle -ve width and/or height
1946     if (ww < 0)
1947     {
1948         ww = -ww;
1949         xx = xx - ww;
1950     }
1951     if (hh < 0)
1952     {
1953         hh = -hh;
1954         yy = yy - hh;
1955     }
1956
1957     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1958     if ( radius == 0)
1959     {
1960         path->AddRectangle( xx , yy , ww , hh ) ;
1961         m_graphicContext->DrawPath( path ) ;
1962     }
1963     else
1964     {
1965         path->MoveToPoint( xx + ww, yy + hh / 2);
1966         path->AddArcToPoint(xx + ww, yy + hh, xx + ww / 2,yy +  hh, radius);
1967         path->AddArcToPoint(xx , yy + hh, xx , yy + hh / 2, radius);
1968         path->AddArcToPoint(xx , yy , xx + ww / 2, yy , radius);
1969         path->AddArcToPoint(xx + ww, yy , xx + ww, yy + hh / 2, radius);
1970         path->CloseSubpath();
1971         m_graphicContext->DrawPath( path ) ;
1972     }
1973     delete path ;
1974 }
1975
1976 void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1977 {
1978     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawEllipse - invalid DC") );
1979
1980     if ( m_logicalFunction != wxCOPY )
1981         return ;
1982
1983     wxCoord xx = XLOG2DEVMAC(x);
1984     wxCoord yy = YLOG2DEVMAC(y);
1985     wxCoord ww = m_signX * XLOG2DEVREL(width);
1986     wxCoord hh = m_signY * YLOG2DEVREL(height);
1987
1988     // CMB: draw nothing if transformed w or h is 0
1989     if (ww == 0 || hh == 0)
1990         return;
1991
1992     // CMB: handle -ve width and/or height
1993     if (ww < 0)
1994     {
1995         ww = -ww;
1996         xx = xx - ww;
1997     }
1998     if (hh < 0)
1999     {
2000         hh = -hh;
2001         yy = yy - hh;
2002     }
2003
2004     wxGraphicPath* path = m_graphicContext->CreatePath() ;
2005     m_graphicContext->PushState() ;
2006     m_graphicContext->Translate(xx + ww / 2, yy + hh / 2);
2007     m_graphicContext->Scale(ww / 2 , hh / 2);
2008     path->AddArc( 0, 0, 1, 0 , 2 * M_PI , false ) ;
2009     m_graphicContext->DrawPath( path ) ;
2010     m_graphicContext->PopState() ;
2011     delete path ;
2012 }
2013
2014 bool wxDC::CanDrawBitmap() const
2015 {
2016     return true ;
2017 }
2018
2019 bool wxDC::DoBlit(
2020     wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
2021     wxDC *source, wxCoord xsrc, wxCoord ysrc, int logical_func , bool useMask,
2022     wxCoord xsrcMask, wxCoord ysrcMask )
2023 {
2024     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoBlit - invalid DC") );
2025     wxCHECK_MSG( source->Ok(), false, wxT("wxDC(cg)::DoBlit - invalid source DC") );
2026
2027     if ( logical_func == wxNO_OP )
2028         return true ;
2029
2030     if (xsrcMask == -1 && ysrcMask == -1)
2031     {
2032         xsrcMask = xsrc;
2033         ysrcMask = ysrc;
2034     }
2035
2036     wxCoord yysrc = source->YLOG2DEVMAC(ysrc) ;
2037     wxCoord xxsrc = source->XLOG2DEVMAC(xsrc) ;
2038     wxCoord wwsrc = source->XLOG2DEVREL(width) ;
2039     wxCoord hhsrc = source->YLOG2DEVREL(height) ;
2040
2041     wxCoord yydest = YLOG2DEVMAC(ydest) ;
2042     wxCoord xxdest = XLOG2DEVMAC(xdest) ;
2043     wxCoord wwdest = XLOG2DEVREL(width) ;
2044     wxCoord hhdest = YLOG2DEVREL(height) ;
2045
2046     wxMemoryDC* memdc = dynamic_cast<wxMemoryDC*>(source) ;
2047     if ( memdc && logical_func == wxCOPY )
2048     {
2049         wxBitmap blit = memdc->GetSelectedObject() ;
2050
2051         wxASSERT_MSG( blit.Ok() , wxT("Invalid bitmap for blitting") ) ;
2052
2053         wxCoord bmpwidth = blit.GetWidth();
2054         wxCoord bmpheight = blit.GetHeight();
2055
2056         if ( xxsrc != 0 || yysrc != 0 || bmpwidth != wwsrc || bmpheight != hhsrc )
2057         {
2058             wwsrc = wxMin( wwsrc , bmpwidth - xxsrc ) ;
2059             hhsrc = wxMin( hhsrc , bmpheight - yysrc ) ;
2060             if ( wwsrc > 0 && hhsrc > 0 )
2061             {
2062                 if ( xxsrc >= 0 && yysrc >= 0 )
2063                 {
2064                     wxRect subrect( xxsrc, yysrc, wwsrc , hhsrc ) ;
2065                     // TODO we perhaps could add a DrawSubBitmap call to dc for performance reasons
2066                     blit = blit.GetSubBitmap( subrect ) ;
2067                 }
2068                 else
2069                 {
2070                     // in this case we'd probably have to adjust the different coordinates, but
2071                     // we have to find out proper contract first
2072                     blit = wxNullBitmap ;
2073                 }
2074             }
2075             else
2076             {
2077                 blit = wxNullBitmap ;
2078             }
2079         }
2080
2081         if ( blit.Ok() )
2082         {
2083             m_graphicContext->DrawBitmap( blit, xxdest , yydest , wwdest , hhdest ) ;
2084         }
2085     }
2086     else
2087     {
2088         wxFAIL_MSG( wxT("Blitting is only supported from bitmap contexts, and only with wxCOPY logical operation.") ) ;
2089         return false ;
2090     }
2091
2092     return true;
2093 }
2094
2095 void wxDC::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y,
2096                               double angle)
2097 {
2098     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRotatedText - invalid DC") );
2099 //    wxCHECK_RET( m_macATSUIStyle != NULL, wxT("wxDC(cg)::DoDrawRotatedText - no valid font set") );
2100
2101     if ( str.length() == 0 )
2102         return ;
2103     if ( m_logicalFunction != wxCOPY )
2104         return ;
2105
2106     int drawX = XLOG2DEVMAC(x) ;
2107     int drawY = YLOG2DEVMAC(y) ;
2108
2109     m_graphicContext->DrawText( str, drawX ,drawY , angle ) ;
2110 }
2111
2112 void wxDC::DoDrawText(const wxString& strtext, wxCoord x, wxCoord y)
2113 {
2114     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawText - invalid DC") );
2115
2116     DoDrawRotatedText( strtext , x , y , 0.0 ) ;
2117 }
2118
2119 bool wxDC::CanGetTextExtent() const
2120 {
2121     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::CanGetTextExtent - invalid DC") );
2122
2123     return true ;
2124 }
2125
2126 void wxDC::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *height,
2127                             wxCoord *descent, wxCoord *externalLeading ,
2128                             wxFont *theFont ) const
2129 {
2130     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoGetTextExtent - invalid DC") );
2131
2132     if ( theFont )
2133     {
2134         m_graphicContext->SetFont( *theFont ) ;
2135     }
2136
2137     wxCoord h , d , e , w ;
2138
2139     m_graphicContext->GetTextExtent( str, &w, &h, &d, &e ) ;
2140
2141     if ( height )
2142         *height = YDEV2LOGREL( h ) ;
2143     if ( descent )
2144         *descent =YDEV2LOGREL( d);
2145     if ( externalLeading )
2146         *externalLeading = YDEV2LOGREL( e);
2147     if ( width )
2148         *width = XDEV2LOGREL( w ) ;
2149
2150     if ( theFont )
2151     {
2152         m_graphicContext->SetFont( m_font ) ;
2153     }
2154 }
2155
2156 bool wxDC::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
2157 {
2158     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoGetPartialTextExtents - invalid DC") );
2159
2160     m_graphicContext->GetPartialTextExtents( text, widths ) ;
2161     for ( size_t i = 0 ; i < widths.GetCount() ; ++i )
2162         widths[i] = XDEV2LOGREL( widths[i] );
2163
2164     return true;
2165 }
2166
2167 wxCoord wxDC::GetCharWidth(void) const
2168 {
2169     wxCoord width ;
2170     DoGetTextExtent( wxT("g") , &width , NULL , NULL , NULL , NULL ) ;
2171
2172     return width ;
2173 }
2174
2175 wxCoord wxDC::GetCharHeight(void) const
2176 {
2177     wxCoord height ;
2178     DoGetTextExtent( wxT("g") , NULL , &height , NULL , NULL , NULL ) ;
2179
2180     return height ;
2181 }
2182
2183 void wxDC::Clear(void)
2184 {
2185     wxCHECK_RET( Ok(), wxT("wxDC(cg)::Clear - invalid DC") );
2186
2187     if (m_backgroundBrush.Ok() && m_backgroundBrush.GetStyle() != wxTRANSPARENT)
2188     {
2189         HIRect rect = CGRectMake( -10000 , -10000 , 20000 , 20000 ) ;
2190         CGContextRef cg = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
2191         switch ( m_backgroundBrush.MacGetBrushKind() )
2192         {
2193             case kwxMacBrushTheme :
2194                 {
2195 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
2196                     if ( HIThemeSetFill != 0 )
2197                     {
2198                         HIThemeSetFill( m_backgroundBrush.MacGetTheme(), NULL, cg, kHIThemeOrientationNormal );
2199                         CGContextFillRect(cg, rect);
2200
2201                     }
2202                     else
2203 #endif
2204                     {
2205                         RGBColor color;
2206                         GetThemeBrushAsColor( m_backgroundBrush.MacGetTheme(), 32, true, &color );
2207                         CGContextSetRGBFillColor( cg, (CGFloat) color.red / 65536,
2208                             (CGFloat) color.green / 65536, (CGFloat) color.blue / 65536, 1 );
2209                             CGContextFillRect( cg, rect );
2210                     }
2211
2212                     // reset to normal value
2213                     RGBColor col = MAC_WXCOLORREF( GetBrush().GetColour().GetPixel() ) ;
2214                     CGContextSetRGBFillColor( cg, col.red / 65536.0, col.green / 65536.0, col.blue / 65536.0, 1.0 );
2215                 }
2216                 break ;
2217
2218             case kwxMacBrushThemeBackground :
2219                 {
2220                     wxFAIL_MSG( wxT("There shouldn't be theme backgrounds under Quartz") ) ;
2221
2222 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_3
2223                     if ( UMAGetSystemVersion() >= 0x1030 )
2224                     {
2225                         HIThemeBackgroundDrawInfo drawInfo ;
2226                         drawInfo.version = 0 ;
2227                         drawInfo.state = kThemeStateActive ;
2228                         drawInfo.kind = m_backgroundBrush.MacGetThemeBackground( NULL ) ;
2229                         if ( drawInfo.kind == kThemeBackgroundMetal )
2230                         {
2231                             HIThemeDrawBackground( &rect, &drawInfo, cg, kHIThemeOrientationNormal ) ;
2232                             HIThemeApplyBackground( &rect, &drawInfo, cg, kHIThemeOrientationNormal ) ;
2233                         }
2234                     }
2235 #endif
2236                 }
2237                 break ;
2238
2239             case kwxMacBrushColour :
2240                 {
2241                     // FIXME: doesn't correctly render stippled brushes !!
2242                     // FIXME: should this be replaced by ::SetBrush() ??
2243
2244                     RGBColor col = MAC_WXCOLORREF( m_backgroundBrush.GetColour().GetPixel()) ;
2245                     CGContextSetRGBFillColor( cg , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
2246                     CGContextFillRect(cg, rect);
2247
2248                     // reset to normal value
2249                     col = MAC_WXCOLORREF( GetBrush().GetColour().GetPixel() ) ;
2250                     CGContextSetRGBFillColor( cg , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
2251                 }
2252                 break ;
2253
2254             default :
2255                 wxFAIL_MSG( wxT("unknown brush kind") ) ;
2256                 break ;
2257         }
2258     }
2259 }
2260
2261 #endif
2262
2263 #pragma mark -
2264
2265 // ---------------------------------------------------------------------------
2266 // coordinates transformations
2267 // ---------------------------------------------------------------------------
2268 /*
2269     wxCoord XLOG2DEVMAC(wxCoord x) const
2270     {
2271         long new_x = x - m_logicalOriginX;
2272         if (new_x > 0)
2273             return (wxCoord)((double)new_x * m_scaleX + 0.5) * m_signX + m_deviceOriginX + m_macLocalOrigin.x;
2274         else
2275             return (wxCoord)((double)new_x * m_scaleX - 0.5) * m_signX + m_deviceOriginX + m_macLocalOrigin.x;
2276     }
2277
2278     wxCoord YLOG2DEVMAC(wxCoord y) const
2279     {
2280         long new_y = y - m_logicalOriginY;
2281         if (new_y > 0)
2282             return (wxCoord)((double)new_y * m_scaleY + 0.5) * m_signY + m_deviceOriginY + m_macLocalOrigin.y;
2283         else
2284             return (wxCoord)((double)new_y * m_scaleY - 0.5) * m_signY + m_deviceOriginY + m_macLocalOrigin.y;
2285     }
2286 */ // TODO
2287 wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
2288 {
2289     return wxRound((double)(x - m_deviceOriginX) / m_scaleX) * m_signX + m_logicalOriginX;
2290 }
2291
2292 wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
2293 {
2294     return wxRound((double)(y - m_deviceOriginY) / m_scaleY) * m_signY + m_logicalOriginY;
2295 }
2296
2297 wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
2298 {
2299     return wxRound((double)(x) / m_scaleX);
2300 }
2301
2302 wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
2303 {
2304     return wxRound((double)(y) / m_scaleY);
2305 }
2306
2307 wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
2308 {
2309     return wxRound((double)(x - m_logicalOriginX) * m_scaleX) * m_signX + m_deviceOriginX;
2310 }
2311
2312 wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
2313 {
2314     return wxRound((double)(y - m_logicalOriginY) * m_scaleY) * m_signY + m_deviceOriginY;
2315 }
2316
2317 wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
2318 {
2319     return wxRound((double)(x) * m_scaleX);
2320 }
2321
2322 wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
2323 {
2324     return wxRound((double)(y) * m_scaleY);
2325 }
2326
2327 #endif // wxMAC_USE_CORE_GRAPHICS