src/mac/carbon/dccg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dc.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 #include "wx/app.h"
  19 #include "wx/mac/uma.h"
  20 #include "wx/dcmemory.h"
  21 #include "wx/dcprint.h"
  22 #include "wx/region.h"
  23 #include "wx/image.h"
  24 #include "wx/log.h"
  25
  26
  27 #ifdef __MSL__
  28     #if __MSL__ >= 0x6000
  29         #include "math.h"
  30         // in case our functions were defined outside std, we make it known all the same
  31         namespace std { }
  32         using namespace std ;
  33     #endif
  34 #endif
  35
  36 #include "wx/mac/private.h"
  37
  38 IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
  39
  40 #ifndef wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
  41 #define wxMAC_USE_CORE_GRAPHICS_BLEND_MODES 0
  42 #endif
  43
  44 //-----------------------------------------------------------------------------
  45 // constants
  46 //-----------------------------------------------------------------------------
  47
  48 #if !defined( __DARWIN__ ) || defined(__MWERKS__)
  49 #ifndef M_PI
  50 const double M_PI = 3.14159265358979 ;
  51 #endif
  52 #endif
  53
  54 const double RAD2DEG = 180.0 / M_PI;
  55 const short kEmulatedMode = -1 ;
  56 const short kUnsupportedMode = -2 ;
  57
  58 extern TECObjectRef s_TECNativeCToUnicode ;
  59
  60
  61 // TODO: update
  62 // The textctrl implementation still needs that (needs what?) for the non-HIView implementation
  63 //
  64 wxMacWindowClipper::wxMacWindowClipper( const wxWindow* win ) :
  65     wxMacPortSaver( (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) )
  66 {
  67     m_newPort = (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) ;
  68     m_formerClip = NewRgn() ;
  69     m_newClip = NewRgn() ;
  70     GetClip( m_formerClip ) ;
  71
  72     if ( win )
  73     {
  74         // guard against half constructed objects, this just leads to a empty clip
  75         if ( win->GetPeer() )
  76         {
  77             int x = 0 , y = 0;
  78             win->MacWindowToRootWindow( &x, &y ) ;
  79
  80             // get area including focus rect
  81             CopyRgn( (RgnHandle) ((wxWindow*)win)->MacGetVisibleRegion(true).GetWXHRGN() , m_newClip ) ;
  82             if ( !EmptyRgn( m_newClip ) )
  83                 OffsetRgn( m_newClip , x , y ) ;
  84         }
  85
  86         SetClip( m_newClip ) ;
  87     }
  88 }
  89
  90 wxMacWindowClipper::~wxMacWindowClipper()
  91 {
  92     SetPort( m_newPort ) ;
  93     SetClip( m_formerClip ) ;
  94     DisposeRgn( m_newClip ) ;
  95     DisposeRgn( m_formerClip ) ;
  96 }
  97
  98 wxMacWindowStateSaver::wxMacWindowStateSaver( const wxWindow* win ) :
  99     wxMacWindowClipper( win )
 100 {
 101     // the port is already set at this point
 102     m_newPort = (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) ;
 103     GetThemeDrawingState( &m_themeDrawingState ) ;
 104 }
 105
 106 wxMacWindowStateSaver::~wxMacWindowStateSaver()
 107 {
 108     SetPort( m_newPort ) ;
 109     SetThemeDrawingState( m_themeDrawingState , true ) ;
 110 }
 111
 112 // minimal implementation only used for appearance drawing < 10.3
 113
 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 //-----------------------------------------------------------------------------
 129 // Local functions
 130 //-----------------------------------------------------------------------------
 131
 132 static inline double dmin(double a, double b) { return a < b ? a : b; }
 133 static inline double dmax(double a, double b) { return a > b ? a : b; }
 134 static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
 135
 136 //-----------------------------------------------------------------------------
 137 // device context implementation
 138 //
 139 // more and more of the dc functionality should be implemented by calling
 140 // the appropricate wxMacCGContext, but we will have to do that step by step
 141 // also coordinate conversions should be moved to native matrix ops
 142 //-----------------------------------------------------------------------------
 143
 144 // we always stock two context states, one at entry, to be able to preserve the
 145 // state we were called with, the other one after changing to HI Graphics orientation
 146 // (this one is used for getting back clippings etc)
 147
 148 wxMacCGPath::wxMacCGPath()
 149 {
 150     m_path = CGPathCreateMutable() ;
 151 }
 152
 153 wxMacCGPath::~wxMacCGPath()
 154 {
 155     CGPathRelease( m_path ) ;
 156 }
 157
 158 // opens (starts) a new subpath
 159 void wxMacCGPath::MoveToPoint( wxCoord x1 , wxCoord y1 )
 160 {
 161     CGPathMoveToPoint( m_path , NULL , x1 , y1 ) ;
 162 }
 163
 164 void wxMacCGPath::AddLineToPoint( wxCoord x1 , wxCoord y1 )
 165 {
 166     CGPathAddLineToPoint( m_path , NULL , x1 , y1 ) ;
 167 }
 168
 169 void wxMacCGPath::AddQuadCurveToPoint( wxCoord cx1, wxCoord cy1, wxCoord x1, wxCoord y1 )
 170 {
 171     CGPathAddQuadCurveToPoint( m_path , NULL , cx1 , cy1 , x1 , y1 );
 172 }
 173
 174 void wxMacCGPath::AddRectangle( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
 175 {
 176     CGRect cgRect = { { x , y } , { w , h } } ;
 177     CGPathAddRect( m_path , NULL , cgRect ) ;
 178 }
 179
 180 void wxMacCGPath::AddCircle( wxCoord x, wxCoord y , wxCoord r )
 181 {
 182     CGPathAddArc( m_path , NULL , x , y , r , 0.0 , 2 * M_PI , true ) ;
 183 }
 184
 185 // closes the current subpath
 186 void wxMacCGPath::CloseSubpath()
 187 {
 188     CGPathCloseSubpath( m_path ) ;
 189 }
 190
 191 CGPathRef wxMacCGPath::GetPath() const
 192 {
 193     return m_path ;
 194 }
 195
 196 wxMacCGContext::wxMacCGContext( CGrafPtr port )
 197 {
 198     m_qdPort = port ;
 199     m_cgContext = NULL ;
 200 }
 201
 202 wxMacCGContext::wxMacCGContext( CGContextRef cgcontext )
 203 {
 204     m_qdPort = NULL ;
 205     m_cgContext = cgcontext ;
 206     CGContextSaveGState( m_cgContext ) ;
 207     CGContextSaveGState( m_cgContext ) ;
 208 }
 209
 210 wxMacCGContext::wxMacCGContext()
 211 {
 212     m_qdPort = NULL ;
 213     m_cgContext = NULL ;
 214 }
 215
 216 wxMacCGContext::~wxMacCGContext()
 217 {
 218     if ( m_cgContext )
 219     {
 220         CGContextSynchronize( m_cgContext ) ;
 221         CGContextRestoreGState( m_cgContext ) ;
 222         CGContextRestoreGState( m_cgContext ) ;
 223     }
 224
 225     if ( m_qdPort )
 226         CGContextRelease( m_cgContext ) ;
 227 }
 228
 229
 230 void wxMacCGContext::Clip( const wxRegion &region )
 231 {
 232 //    ClipCGContextToRegion ( m_cgContext, &bounds , (RgnHandle) dc->m_macCurrentClipRgn ) ;
 233 }
 234
 235 void wxMacCGContext::StrokePath( const wxGraphicPath *p )
 236 {
 237     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 238     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 239     CGContextStrokePath( m_cgContext ) ;
 240 }
 241
 242 void wxMacCGContext::DrawPath( const wxGraphicPath *p , int fillStyle )
 243 {
 244     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 245     CGPathDrawingMode mode = m_mode ;
 246
 247     if ( fillStyle == wxODDEVEN_RULE )
 248     {
 249         if ( mode == kCGPathFill )
 250             mode = kCGPathEOFill ;
 251         else if ( mode == kCGPathFillStroke )
 252             mode = kCGPathEOFillStroke ;
 253     }
 254
 255     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 256     CGContextDrawPath( m_cgContext , mode ) ;
 257 }
 258
 259 void wxMacCGContext::FillPath( const wxGraphicPath *p , const wxColor &fillColor , int fillStyle )
 260 {
 261     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 262     CGContextSaveGState( m_cgContext ) ;
 263
 264     RGBColor col = MAC_WXCOLORREF( fillColor.GetPixel() ) ;
 265     CGContextSetRGBFillColor( m_cgContext , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
 266     CGPathDrawingMode mode = kCGPathFill ;
 267
 268     if ( fillStyle == wxODDEVEN_RULE )
 269         mode = kCGPathEOFill ;
 270
 271     CGContextBeginPath( m_cgContext ) ;
 272     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 273     CGContextClosePath( m_cgContext ) ;
 274     CGContextDrawPath( m_cgContext , mode ) ;
 275
 276     CGContextRestoreGState( m_cgContext ) ;
 277 }
 278
 279 wxGraphicPath* wxMacCGContext::CreatePath()
 280 {
 281     // make sure that we now have a real cgref, before doing
 282     // anything with paths
 283     CGContextRef cg = GetNativeContext() ;
 284     cg = NULL ;
 285
 286     return new wxMacCGPath() ;
 287 }
 288
 289 // in case we only got a QDPort only create a cgref now
 290
 291 CGContextRef wxMacCGContext::GetNativeContext()
 292 {
 293     if ( m_cgContext == NULL )
 294     {
 295         Rect bounds ;
 296         GetPortBounds( (CGrafPtr) m_qdPort , &bounds ) ;
 297         OSStatus status = CreateCGContextForPort((CGrafPtr) m_qdPort , &m_cgContext) ;
 298         CGContextSaveGState( m_cgContext ) ;
 299
 300         wxASSERT_MSG( status == noErr , wxT("Cannot nest wxDCs on the same window") ) ;
 301
 302         CGContextTranslateCTM( m_cgContext , 0 , bounds.bottom - bounds.top ) ;
 303         CGContextScaleCTM( m_cgContext , 1 , -1 ) ;
 304
 305         CGContextSaveGState( m_cgContext ) ;
 306         SetPen( m_pen ) ;
 307         SetBrush( m_brush ) ;
 308     }
 309
 310     return m_cgContext ;
 311 }
 312
 313 void wxMacCGContext::SetNativeContext( CGContextRef cg )
 314 {
 315     // we allow either setting or clearing but not replacing
 316     wxASSERT( m_cgContext == NULL || cg == NULL ) ;
 317
 318     if ( cg )
 319         CGContextSaveGState( cg ) ;
 320     m_cgContext = cg ;
 321 }
 322
 323 #pragma mark -
 324 #pragma mark wxMacCGPattern, ImagePattern, HatchPattern classes
 325
 326 // CGPattern wrapper class: always allocate on heap, never call destructor
 327
 328 class wxMacCGPattern
 329 {
 330 public :
 331     wxMacCGPattern() {}
 332
 333     // is guaranteed to be called only with a non-Null CGContextRef
 334     virtual void Render( CGContextRef ctxRef ) = 0 ;
 335
 336     operator CGPatternRef() const { return m_patternRef ; }
 337
 338 protected :
 339     virtual ~wxMacCGPattern()
 340     {
 341         // as this is called only when the m_patternRef is been released;
 342         // don't release it again
 343     }
 344
 345     static void _Render( void *info, CGContextRef ctxRef )
 346     {
 347         wxMacCGPattern* self = (wxMacCGPattern*) info ;
 348         if ( self && ctxRef )
 349             self->Render( ctxRef ) ;
 350     }
 351
 352     static void _Dispose( void *info )
 353     {
 354         wxMacCGPattern* self = (wxMacCGPattern*) info ;
 355         delete self ;
 356     }
 357
 358     CGPatternRef m_patternRef ;
 359
 360     static const CGPatternCallbacks ms_Callbacks ;
 361 } ;
 362
 363 const CGPatternCallbacks wxMacCGPattern::ms_Callbacks = { 0, &wxMacCGPattern::_Render, &wxMacCGPattern::_Dispose };
 364
 365 class ImagePattern : public wxMacCGPattern
 366 {
 367 public :
 368     ImagePattern( const wxBitmap* bmp , CGAffineTransform transform )
 369     {
 370         wxASSERT( bmp && bmp->Ok() ) ;
 371
 372         Init( (CGImageRef) bmp->CGImageCreate() , transform ) ;
 373     }
 374
 375     // ImagePattern takes ownership of CGImageRef passed in
 376     ImagePattern( CGImageRef image , CGAffineTransform transform )
 377     {
 378         if ( image )
 379             CFRetain( image ) ;
 380
 381         Init( image , transform ) ;
 382     }
 383
 384     virtual void Render( CGContextRef ctxRef )
 385     {
 386         if (m_image != NULL)
 387             HIViewDrawCGImage( ctxRef, &m_imageBounds, m_image );
 388     }
 389
 390 protected :
 391     void Init( CGImageRef image, CGAffineTransform transform )
 392     {
 393         m_image = image ;
 394         if ( m_image )
 395         {
 396             m_imageBounds = CGRectMake( 0.0, 0.0, (float)CGImageGetWidth( m_image ), (float)CGImageGetHeight( m_image ) ) ;
 397             m_patternRef = CGPatternCreate(
 398                 this , m_imageBounds, transform ,
 399                 m_imageBounds.size.width, m_imageBounds.size.height,
 400                 kCGPatternTilingNoDistortion, true , &wxMacCGPattern::ms_Callbacks ) ;
 401         }
 402     }
 403
 404     ~ImagePattern()
 405     {
 406         if ( m_image )
 407             CGImageRelease( m_image ) ;
 408     }
 409
 410     CGImageRef m_image ;
 411     CGRect m_imageBounds ;
 412 } ;
 413
 414 class HatchPattern : public wxMacCGPattern
 415 {
 416 public :
 417     HatchPattern( int hatchstyle, CGAffineTransform transform )
 418     {
 419         m_hatch = hatchstyle ;
 420         m_imageBounds = CGRectMake( 0.0, 0.0, 8.0 , 8.0 ) ;
 421         m_patternRef = CGPatternCreate(
 422             this , m_imageBounds, transform ,
 423             m_imageBounds.size.width, m_imageBounds.size.height,
 424             kCGPatternTilingNoDistortion, false , &wxMacCGPattern::ms_Callbacks ) ;
 425     }
 426
 427     void StrokeLineSegments( CGContextRef ctxRef , const CGPoint pts[] , size_t count )
 428     {
 429 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
 430         if ( UMAGetSystemVersion() >= 0x1040 )
 431         {
 432             CGContextStrokeLineSegments( ctxRef , pts , count ) ;
 433         }
 434         else
 435 #endif
 436         {
 437             CGContextBeginPath( ctxRef );
 438             for (size_t i = 0; i < count; i += 2)
 439             {
 440                 CGContextMoveToPoint(ctxRef, pts[i].x, pts[i].y);
 441                 CGContextAddLineToPoint(ctxRef, pts[i+1].x, pts[i+1].y);
 442             }
 443             CGContextStrokePath(ctxRef);
 444         }
 445     }
 446
 447     virtual void Render( CGContextRef ctxRef )
 448     {
 449         switch ( m_hatch )
 450         {
 451             case wxBDIAGONAL_HATCH :
 452                 {
 453                     CGPoint pts[] =
 454                     {
 455                     { 8.0 , 0.0 } , { 0.0 , 8.0 }
 456                     };
 457                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 458                 }
 459                 break ;
 460
 461             case wxCROSSDIAG_HATCH :
 462                 {
 463                     CGPoint pts[] =
 464                     {
 465                         { 0.0 , 0.0 } , { 8.0 , 8.0 } ,
 466                         { 8.0 , 0.0 } , { 0.0 , 8.0 }
 467                     };
 468                     StrokeLineSegments( ctxRef , pts , 4 ) ;
 469                 }
 470                 break ;
 471
 472             case wxFDIAGONAL_HATCH :
 473                 {
 474                     CGPoint pts[] =
 475                     {
 476                     { 0.0 , 0.0 } , { 8.0 , 8.0 }
 477                     };
 478                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 479                 }
 480                 break ;
 481
 482             case wxCROSS_HATCH :
 483                 {
 484                     CGPoint pts[] =
 485                     {
 486                     { 0.0 , 4.0 } , { 8.0 , 4.0 } ,
 487                     { 4.0 , 0.0 } , { 4.0 , 8.0 } ,
 488                     };
 489                     StrokeLineSegments( ctxRef , pts , 4 ) ;
 490                 }
 491                 break ;
 492
 493             case wxHORIZONTAL_HATCH :
 494                 {
 495                     CGPoint pts[] =
 496                     {
 497                     { 0.0 , 4.0 } , { 8.0 , 4.0 } ,
 498                     };
 499                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 500                 }
 501                 break ;
 502
 503             case wxVERTICAL_HATCH :
 504                 {
 505                     CGPoint pts[] =
 506                     {
 507                     { 4.0 , 0.0 } , { 4.0 , 8.0 } ,
 508                     };
 509                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 510                 }
 511                 break ;
 512
 513             default:
 514                 break;
 515         }
 516     }
 517
 518 protected :
 519     ~HatchPattern() {}
 520
 521     CGRect      m_imageBounds ;
 522     int         m_hatch ;
 523 };
 524
 525 #pragma mark -
 526
 527 void wxMacCGContext::SetPen( const wxPen &pen )
 528 {
 529     m_pen = pen ;
 530     if ( m_cgContext == NULL )
 531         return ;
 532
 533     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
 534     bool stroke = pen.GetStyle() != wxTRANSPARENT ;
 535
 536 #if 0
 537     // we can benchmark performance; should go into a setting eventually
 538     CGContextSetShouldAntialias( m_cgContext , false ) ;
 539 #endif
 540
 541     if ( fill | stroke )
 542     {
 543         // set up brushes
 544         m_mode = kCGPathFill ; // just a default
 545
 546         if ( stroke )
 547         {
 548             RGBColor col = MAC_WXCOLORREF( pen.GetColour().GetPixel() ) ;
 549             CGContextSetRGBStrokeColor( m_cgContext , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
 550
 551             // TODO: * m_dc->m_scaleX
 552             float penWidth = pen.GetWidth();
 553             if (penWidth <= 0.0)
 554                 penWidth = 0.1;
 555             CGContextSetLineWidth( m_cgContext , penWidth ) ;
 556
 557             CGLineCap cap ;
 558             switch ( pen.GetCap() )
 559             {
 560                 case wxCAP_ROUND :
 561                     cap = kCGLineCapRound ;
 562                     break ;
 563
 564                 case wxCAP_PROJECTING :
 565                     cap = kCGLineCapSquare ;
 566                     break ;
 567
 568                 case wxCAP_BUTT :
 569                     cap = kCGLineCapButt ;
 570                     break ;
 571
 572                 default :
 573                     cap = kCGLineCapButt ;
 574                     break ;
 575             }
 576
 577             CGLineJoin join ;
 578             switch ( pen.GetJoin() )
 579             {
 580                 case wxJOIN_BEVEL :
 581                     join = kCGLineJoinBevel ;
 582                     break ;
 583
 584                 case wxJOIN_MITER :
 585                     join = kCGLineJoinMiter ;
 586                     break ;
 587
 588                 case wxJOIN_ROUND :
 589                     join = kCGLineJoinRound ;
 590                     break ;
 591
 592                 default :
 593                     join = kCGLineJoinMiter ;
 594                     break;
 595             }
 596
 597             m_mode = kCGPathStroke ;
 598             int count = 0 ;
 599
 600             const float *lengths = NULL ;
 601             float *userLengths = NULL ;
 602
 603             const float dashUnit = penWidth < 1.0 ? 1.0 : penWidth;
 604
 605             const float dotted[] = { dashUnit , dashUnit + 2.0 };
 606             const float short_dashed[] = { 9.0 , 6.0 };
 607             const float dashed[] = { 19.0 , 9.0 };
 608             const float dotted_dashed[] = { 9.0 , 6.0 , 3.0 , 3.0 };
 609
 610             switch ( pen.GetStyle() )
 611             {
 612                 case wxSOLID :
 613                     break ;
 614
 615                 case wxDOT :
 616                     lengths = dotted ;
 617                     count = WXSIZEOF(dotted);
 618                     break ;
 619
 620                 case wxLONG_DASH :
 621                     lengths = dashed ;
 622                     count = WXSIZEOF(dashed) ;
 623                     break ;
 624
 625                 case wxSHORT_DASH :
 626                     lengths = short_dashed ;
 627                     count = WXSIZEOF(short_dashed) ;
 628                     break ;
 629
 630                 case wxDOT_DASH :
 631                     lengths = dotted_dashed ;
 632                     count = WXSIZEOF(dotted_dashed);
 633                     break ;
 634
 635                 case wxUSER_DASH :
 636                     wxDash *dashes ;
 637                     count = pen.GetDashes( &dashes ) ;
 638                     if ((dashes != NULL) && (count > 0))
 639                     {
 640                         userLengths = new float[count] ;
 641                         for ( int i = 0 ; i < count ; ++i )
 642                         {
 643                             userLengths[i] = dashes[i] * dashUnit ;
 644
 645                             if ( i % 2 == 1 && userLengths[i] < dashUnit + 2.0 )
 646                                 userLengths[i] = dashUnit + 2.0 ;
 647                             else if ( i % 2 == 0 && userLengths[i] < dashUnit )
 648                                 userLengths[i] = dashUnit ;
 649                         }
 650                     }
 651                     lengths = userLengths ;
 652                     break ;
 653
 654                 case wxSTIPPLE :
 655                     {
 656                         float  alphaArray[1] = { 1.0 } ;
 657                         wxBitmap* bmp = pen.GetStipple() ;
 658                         if ( bmp && bmp->Ok() )
 659                         {
 660                             wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( NULL ) ) ;
 661                             CGContextSetStrokeColorSpace( m_cgContext , patternSpace ) ;
 662                             wxMacCFRefHolder<CGPatternRef> pattern( *( new ImagePattern( bmp , CGContextGetCTM( m_cgContext ) ) ) );
 663                             CGContextSetStrokePattern( m_cgContext, pattern , alphaArray ) ;
 664                         }
 665                     }
 666                     break ;
 667
 668                 default :
 669                     {
 670                         wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) ) ;
 671                         CGContextSetStrokeColorSpace( m_cgContext , patternSpace ) ;
 672                         wxMacCFRefHolder<CGPatternRef> pattern( *( new HatchPattern( pen.GetStyle() , CGContextGetCTM( m_cgContext ) ) ) );
 673
 674                         RGBColor col = MAC_WXCOLORREF( pen.GetColour().GetPixel() ) ;
 675                         float  colorArray[4] = { col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 } ;
 676
 677                         CGContextSetStrokePattern( m_cgContext, pattern , colorArray ) ;
 678                     }
 679                     break ;
 680             }
 681
 682             if ((lengths != NULL) && (count > 0))
 683             {
 684                 CGContextSetLineDash( m_cgContext , 0 , lengths , count ) ;
 685                 // force the line cap, otherwise we get artifacts (overlaps) and just solid lines
 686                 cap = kCGLineCapButt ;
 687             }
 688             else
 689             {
 690                CGContextSetLineDash( m_cgContext , 0 , NULL , 0 ) ;
 691             }
 692
 693             CGContextSetLineCap( m_cgContext , cap ) ;
 694             CGContextSetLineJoin( m_cgContext , join ) ;
 695
 696             delete[] userLengths ;
 697         }
 698
 699         if ( fill && stroke )
 700             m_mode = kCGPathFillStroke ;
 701     }
 702 }
 703
 704 void wxMacCGContext::SetBrush( const wxBrush &brush )
 705 {
 706     m_brush = brush ;
 707     if ( m_cgContext == NULL )
 708         return ;
 709
 710     bool fill = brush.GetStyle() != wxTRANSPARENT ;
 711     bool stroke = m_pen.GetStyle() != wxTRANSPARENT ;
 712
 713 #if 0
 714     // we can benchmark performance, should go into a setting later
 715     CGContextSetShouldAntialias( m_cgContext , false ) ;
 716 #endif
 717
 718     if ( fill | stroke )
 719     {
 720         // setup brushes
 721         m_mode = kCGPathFill ; // just a default
 722
 723         if ( fill )
 724         {
 725             if ( brush.GetStyle() == wxSOLID )
 726             {
 727                 RGBColor col = MAC_WXCOLORREF( brush.GetColour().GetPixel() ) ;
 728                 CGContextSetRGBFillColor( m_cgContext , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
 729             }
 730             else if ( brush.IsHatch() )
 731             {
 732                 wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) ) ;
 733                 CGContextSetFillColorSpace( m_cgContext , patternSpace ) ;
 734                 wxMacCFRefHolder<CGPatternRef> pattern( *( new HatchPattern( brush.GetStyle() , CGContextGetCTM( m_cgContext ) ) ) );
 735
 736                 RGBColor col = MAC_WXCOLORREF( brush.GetColour().GetPixel() ) ;
 737                 float  colorArray[4] = { col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 } ;
 738
 739                 CGContextSetFillPattern( m_cgContext, pattern , colorArray ) ;
 740             }
 741             else
 742             {
 743                 // now brush is a bitmap
 744                 float  alphaArray[1] = { 1.0 } ;
 745                 wxBitmap* bmp = brush.GetStipple() ;
 746                 if ( bmp && bmp->Ok() )
 747                 {
 748                     wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( NULL ) ) ;
 749                     CGContextSetFillColorSpace( m_cgContext , patternSpace ) ;
 750                     wxMacCFRefHolder<CGPatternRef> pattern( *( new ImagePattern( bmp , CGContextGetCTM( m_cgContext ) ) ) );
 751                     CGContextSetFillPattern( m_cgContext, pattern , alphaArray ) ;
 752                 }
 753             }
 754
 755             m_mode = kCGPathFill ;
 756         }
 757
 758         if ( fill && stroke )
 759             m_mode = kCGPathFillStroke ;
 760         else if ( stroke )
 761             m_mode = kCGPathStroke ;
 762     }
 763 }
 764
 765 void AddEllipticArcToPath(CGContextRef c, CGPoint center, float a, float b, float fromDegree , float toDegree )
 766 {
 767     CGContextSaveGState(c);
 768     CGContextTranslateCTM(c, center.x, center.y);
 769     CGContextScaleCTM(c, a, b);
 770     CGContextMoveToPoint(c, 1, 0);
 771     CGContextAddArc(c, 0, 0, 1, DegToRad(fromDegree), DegToRad(toDegree), 0);
 772     CGContextClosePath(c);
 773     CGContextRestoreGState(c);
 774 }
 775
 776 void AddRoundedRectToPath(CGContextRef c, CGRect rect, float ovalWidth,
 777       float ovalHeight)
 778 {
 779     float fw, fh;
 780     if (ovalWidth == 0 || ovalHeight == 0)
 781     {
 782         CGContextAddRect(c, rect);
 783         return;
 784     }
 785
 786     CGContextSaveGState(c);
 787     CGContextTranslateCTM(c, CGRectGetMinX(rect), CGRectGetMinY(rect));
 788     CGContextScaleCTM(c, ovalWidth, ovalHeight);
 789
 790     fw = CGRectGetWidth(rect) / ovalWidth;
 791     fh = CGRectGetHeight(rect) / ovalHeight;
 792
 793     CGContextMoveToPoint(c, fw, fh / 2);
 794     CGContextAddArcToPoint(c, fw, fh, fw / 2, fh, 1);
 795     CGContextAddArcToPoint(c, 0, fh, 0, fh / 2, 1);
 796     CGContextAddArcToPoint(c, 0, 0, fw / 2, 0, 1);
 797     CGContextAddArcToPoint(c, fw, 0, fw, fh / 2, 1);
 798     CGContextClosePath(c);
 799     CGContextRestoreGState(c);
 800 }
 801
 802 #pragma mark -
 803
 804 wxDC::wxDC()
 805 {
 806     m_ok = false ;
 807     m_colour = true;
 808     m_mm_to_pix_x = mm2pt;
 809     m_mm_to_pix_y = mm2pt;
 810
 811     m_externalDeviceOriginX = 0;
 812     m_externalDeviceOriginY = 0;
 813     m_logicalScaleX = 1.0;
 814     m_logicalScaleY = 1.0;
 815     m_userScaleX = 1.0;
 816     m_userScaleY = 1.0;
 817     m_scaleX = 1.0;
 818     m_scaleY = 1.0;
 819     m_needComputeScaleX =
 820     m_needComputeScaleY = false;
 821
 822     m_macPort = 0 ;
 823     m_macLocalOrigin.x =
 824     m_macLocalOrigin.y = 0 ;
 825
 826     m_pen = *wxBLACK_PEN;
 827     m_font = *wxNORMAL_FONT;
 828     m_brush = *wxWHITE_BRUSH;
 829
 830     m_macATSUIStyle = NULL ;
 831     m_graphicContext = NULL ;
 832 }
 833
 834 wxDC::~wxDC()
 835 {
 836     if ( m_macATSUIStyle )
 837     {
 838         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
 839         m_macATSUIStyle = NULL ;
 840     }
 841
 842     delete m_graphicContext ;
 843 }
 844
 845 void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask )
 846 {
 847     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawBitmap - invalid DC") );
 848     wxCHECK_RET( bmp.Ok(), wxT("wxDC(cg)::DoDrawBitmap - invalid bitmap") );
 849
 850     wxCoord xx = XLOG2DEVMAC(x);
 851     wxCoord yy = YLOG2DEVMAC(y);
 852     wxCoord w = bmp.GetWidth();
 853     wxCoord h = bmp.GetHeight();
 854     wxCoord ww = XLOG2DEVREL(w);
 855     wxCoord hh = YLOG2DEVREL(h);
 856
 857     CGContextRef cg = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
 858     CGImageRef image = (CGImageRef)( bmp.CGImageCreate() ) ;
 859     HIRect r = CGRectMake( xx , yy , ww , hh ) ;
 860     HIViewDrawCGImage( cg , &r , image ) ;
 861     CGImageRelease( image ) ;
 862 }
 863
 864 void wxDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )
 865 {
 866     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawIcon - invalid DC") );
 867     wxCHECK_RET( icon.Ok(), wxT("wxDC(cg)::DoDrawIcon - invalid icon") );
 868
 869     wxCoord xx = XLOG2DEVMAC(x);
 870     wxCoord yy = YLOG2DEVMAC(y);
 871     wxCoord w = icon.GetWidth();
 872     wxCoord h = icon.GetHeight();
 873     wxCoord ww = XLOG2DEVREL(w);
 874     wxCoord hh = YLOG2DEVREL(h);
 875
 876     CGContextRef cg = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
 877     CGRect r = CGRectMake( 00 , 00 , ww , hh ) ;
 878     CGContextSaveGState( cg );
 879     CGContextTranslateCTM( cg, xx , yy + hh );
 880     CGContextScaleCTM( cg, 1, -1 );
 881     PlotIconRefInContext( cg , &r , kAlignNone , kTransformNone ,
 882         NULL , kPlotIconRefNormalFlags , MAC_WXHICON( icon.GetHICON() ) ) ;
 883     CGContextRestoreGState( cg ) ;
 884 }
 885
 886 void wxDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
 887 {
 888     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoSetClippingRegion - invalid DC") );
 889
 890     wxCoord xx, yy, ww, hh;
 891     xx = XLOG2DEVMAC(x);
 892     yy = YLOG2DEVMAC(y);
 893     ww = XLOG2DEVREL(width);
 894     hh = YLOG2DEVREL(height);
 895
 896     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
 897     CGRect clipRect = CGRectMake( xx , yy , ww, hh ) ;
 898     CGContextClipToRect( cgContext , clipRect ) ;
 899
 900 //    SetRectRgn( (RgnHandle) m_macCurrentClipRgn , xx , yy , xx + ww , yy + hh ) ;
 901 //    SectRgn( (RgnHandle) m_macCurrentClipRgn , (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
 902
 903     if ( m_clipping )
 904     {
 905         m_clipX1 = wxMax( m_clipX1, xx );
 906         m_clipY1 = wxMax( m_clipY1, yy );
 907         m_clipX2 = wxMin( m_clipX2, (xx + ww) );
 908         m_clipY2 = wxMin( m_clipY2, (yy + hh) );
 909     }
 910     else
 911     {
 912         m_clipping = true;
 913
 914         m_clipX1 = xx;
 915         m_clipY1 = yy;
 916         m_clipX2 = xx + ww;
 917         m_clipY2 = yy + hh;
 918     }
 919
 920     // TODO: as soon as we don't reset the context for each operation anymore
 921     // we have to update the context as well
 922 }
 923
 924 void wxDC::DoSetClippingRegionAsRegion( const wxRegion &region )
 925 {
 926     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoSetClippingRegionAsRegion - invalid DC") );
 927
 928     if (region.Empty())
 929     {
 930         DestroyClippingRegion();
 931         return;
 932     }
 933
 934     wxCoord x, y, w, h;
 935     region.GetBox( x, y, w, h );
 936     wxCoord xx, yy, ww, hh;
 937     xx = XLOG2DEVMAC(x);
 938     yy = YLOG2DEVMAC(y);
 939     ww = XLOG2DEVREL(w);
 940     hh = YLOG2DEVREL(h);
 941
 942     // if we have a scaling that we cannot map onto native regions
 943     // we must use the box
 944     if ( ww != w || hh != h )
 945     {
 946         wxDC::DoSetClippingRegion( x, y, w, h );
 947     }
 948     else
 949     {
 950 #if 0
 951         CopyRgn( (RgnHandle) region.GetWXHRGN() , (RgnHandle) m_macCurrentClipRgn ) ;
 952         if ( xx != x || yy != y )
 953             OffsetRgn( (RgnHandle) m_macCurrentClipRgn , xx - x , yy - y ) ;
 954         SectRgn( (RgnHandle)m_macCurrentClipRgn , (RgnHandle)m_macBoundaryClipRgn , (RgnHandle)m_macCurrentClipRgn ) ;
 955 #endif
 956
 957         if ( m_clipping )
 958         {
 959             m_clipX1 = wxMax( m_clipX1, xx );
 960             m_clipY1 = wxMax( m_clipY1, yy );
 961             m_clipX2 = wxMin( m_clipX2, (xx + ww) );
 962             m_clipY2 = wxMin( m_clipY2, (yy + hh) );
 963         }
 964         else
 965         {
 966             m_clipping = true;
 967
 968             m_clipX1 = xx;
 969             m_clipY1 = yy;
 970             m_clipX2 = xx + ww;
 971             m_clipY2 = yy + hh;
 972         }
 973     }
 974 }
 975
 976 void wxDC::DestroyClippingRegion()
 977 {
 978 //    CopyRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
 979
 980     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
 981     CGContextRestoreGState( cgContext );
 982     CGContextSaveGState( cgContext );
 983
 984     m_graphicContext->SetPen( m_pen ) ;
 985     m_graphicContext->SetBrush( m_brush ) ;
 986
 987     m_clipping = false;
 988 }
 989
 990 void wxDC::DoGetSizeMM( int* width, int* height ) const
 991 {
 992     int w = 0, h = 0;
 993
 994     GetSize( &w, &h );
 995     if (width)
 996         *width = long( double(w) / (m_scaleX * m_mm_to_pix_x) );
 997     if (height)
 998         *height = long( double(h) / (m_scaleY * m_mm_to_pix_y) );
 999 }
1000
1001 void wxDC::SetTextForeground( const wxColour &col )
1002 {
1003     wxCHECK_RET( Ok(), wxT("wxDC(cg)::SetTextForeground - invalid DC") );
1004
1005     if ( col != m_textForegroundColour )
1006     {
1007         m_textForegroundColour = col;
1008         MacInstallFont() ;
1009     }
1010 }
1011
1012 void wxDC::SetTextBackground( const wxColour &col )
1013 {
1014     wxCHECK_RET( Ok(), wxT("wxDC(cg)::SetTextBackground - invalid DC") );
1015
1016     m_textBackgroundColour = col;
1017 }
1018
1019 void wxDC::SetMapMode( int mode )
1020 {
1021     switch (mode)
1022     {
1023     case wxMM_TWIPS:
1024         SetLogicalScale( twips2mm * m_mm_to_pix_x, twips2mm * m_mm_to_pix_y );
1025         break;
1026
1027     case wxMM_POINTS:
1028         SetLogicalScale( pt2mm * m_mm_to_pix_x, pt2mm * m_mm_to_pix_y );
1029         break;
1030
1031     case wxMM_METRIC:
1032         SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y );
1033         break;
1034
1035     case wxMM_LOMETRIC:
1036         SetLogicalScale( m_mm_to_pix_x / 10.0, m_mm_to_pix_y / 10.0 );
1037         break;
1038
1039     case wxMM_TEXT:
1040     default:
1041         SetLogicalScale( 1.0, 1.0 );
1042         break;
1043     }
1044
1045     if (mode != wxMM_TEXT)
1046     {
1047         m_needComputeScaleX =
1048         m_needComputeScaleY = true;
1049     }
1050 }
1051
1052 void wxDC::SetUserScale( double x, double y )
1053 {
1054     // allow negative ? -> no
1055     m_userScaleX = x;
1056     m_userScaleY = y;
1057     ComputeScaleAndOrigin();
1058 }
1059
1060 void wxDC::SetLogicalScale( double x, double y )
1061 {
1062     // allow negative ?
1063     m_logicalScaleX = x;
1064     m_logicalScaleY = y;
1065     ComputeScaleAndOrigin();
1066 }
1067
1068 void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y )
1069 {
1070     m_logicalOriginX = x * m_signX;   // is this still correct ?
1071     m_logicalOriginY = y * m_signY;
1072     ComputeScaleAndOrigin();
1073 }
1074
1075 void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y )
1076 {
1077     m_externalDeviceOriginX = x;
1078     m_externalDeviceOriginY = y;
1079     ComputeScaleAndOrigin();
1080 }
1081
1082 void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
1083 {
1084     m_signX = (xLeftRight ?  1 : -1);
1085     m_signY = (yBottomUp ? -1 :  1);
1086     ComputeScaleAndOrigin();
1087 }
1088
1089 wxSize wxDC::GetPPI() const
1090 {
1091     return wxSize(72, 72);
1092 }
1093
1094 int wxDC::GetDepth() const
1095 {
1096     return 32;
1097 }
1098
1099 void wxDC::ComputeScaleAndOrigin()
1100 {
1101     // CMB: copy scale to see if it changes
1102     double origScaleX = m_scaleX;
1103     double origScaleY = m_scaleY;
1104     m_scaleX = m_logicalScaleX * m_userScaleX;
1105     m_scaleY = m_logicalScaleY * m_userScaleY;
1106     m_deviceOriginX = m_externalDeviceOriginX;
1107     m_deviceOriginY = m_externalDeviceOriginY;
1108
1109     // CMB: if scale has changed call SetPen to recalulate the line width
1110     if (m_scaleX != origScaleX || m_scaleY != origScaleY)
1111     {
1112         // this is a bit artificial, but we need to force wxDC to think
1113         // the pen has changed
1114         wxPen pen( GetPen() );
1115
1116         m_pen = wxNullPen;
1117         SetPen( pen );
1118     }
1119 }
1120
1121 void wxDC::SetPalette( const wxPalette& palette )
1122 {
1123 }
1124
1125 void wxDC::SetBackgroundMode( int mode )
1126 {
1127     m_backgroundMode = mode ;
1128 }
1129
1130 void wxDC::SetFont( const wxFont &font )
1131 {
1132     m_font = font;
1133     MacInstallFont() ;
1134 }
1135
1136 void wxDC::SetPen( const wxPen &pen )
1137 {
1138     if ( m_pen == pen )
1139         return ;
1140
1141     m_pen = pen;
1142     if ( m_graphicContext )
1143     {
1144         if ( m_pen.GetStyle() == wxSOLID || m_pen.GetStyle() == wxTRANSPARENT )
1145         {
1146             m_graphicContext->SetPen( m_pen ) ;
1147         }
1148         else
1149         {
1150             // we have to compensate for moved device origins etc. otherwise patterned pens are standing still
1151             // eg when using a wxScrollWindow and scrolling around
1152             CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1153             int origX = XLOG2DEVMAC( 0 ) ;
1154             int origY = YLOG2DEVMAC( 0 ) ;
1155             CGContextTranslateCTM( cgContext, origX, origY );
1156             m_graphicContext->SetPen( m_pen ) ;
1157             CGContextTranslateCTM( cgContext, -origX, -origY );
1158         }
1159     }
1160 }
1161
1162 void wxDC::SetBrush( const wxBrush &brush )
1163 {
1164     if (m_brush == brush)
1165         return;
1166
1167     m_brush = brush;
1168     if ( m_graphicContext )
1169     {
1170         if ( brush.GetStyle() == wxSOLID || brush.GetStyle() == wxTRANSPARENT )
1171         {
1172             m_graphicContext->SetBrush( m_brush ) ;
1173         }
1174         else
1175         {
1176             // we have to compensate for moved device origins etc. otherwise patterned brushes are standing still
1177             // eg when using a wxScrollWindow and scrolling around
1178             CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1179             int origX = XLOG2DEVMAC(0) ;
1180             int origY = YLOG2DEVMAC(0) ;
1181             CGContextTranslateCTM( cgContext, origX, origY );
1182             m_graphicContext->SetBrush( m_brush ) ;
1183             CGContextTranslateCTM( cgContext, -origX, -origY );
1184         }
1185     }
1186 }
1187
1188 void wxDC::SetBackground( const wxBrush &brush )
1189 {
1190     if (m_backgroundBrush == brush)
1191         return;
1192
1193     m_backgroundBrush = brush;
1194     if (!m_backgroundBrush.Ok())
1195         return;
1196 }
1197
1198 void wxDC::SetLogicalFunction( int function )
1199 {
1200     if (m_logicalFunction == function)
1201         return;
1202
1203     m_logicalFunction = function ;
1204 #if wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
1205     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1206     if ( m_logicalFunction == wxCOPY )
1207         CGContextSetBlendMode( cgContext, kCGBlendModeNormal ) ;
1208     else if ( m_logicalFunction == wxINVERT )
1209         CGContextSetBlendMode( cgContext, kCGBlendModeExclusion ) ;
1210     else
1211         CGContextSetBlendMode( cgContext, kCGBlendModeNormal ) ;
1212 #endif
1213 }
1214
1215 extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
1216                           const wxColour & col, int style);
1217
1218 bool wxDC::DoFloodFill(wxCoord x, wxCoord y,
1219                        const wxColour& col, int style)
1220 {
1221     return wxDoFloodFill(this, x, y, col, style);
1222 }
1223
1224 bool wxDC::DoGetPixel( wxCoord x, wxCoord y, wxColour *col ) const
1225 {
1226     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoGetPixel - invalid DC") );
1227
1228     wxMacPortSaver helper((CGrafPtr)m_macPort) ;
1229     RGBColor colour;
1230
1231     // NB: GetCPixel is a deprecated QD call, and a slow one at that
1232     GetCPixel(
1233         XLOG2DEVMAC(x) + m_macLocalOriginInPort.x - m_macLocalOrigin.x,
1234         YLOG2DEVMAC(y) + m_macLocalOriginInPort.y - m_macLocalOrigin.y, &colour );
1235
1236     // convert from Mac colour to wx
1237     col->Set( colour.red >> 8, colour.green >> 8, colour.blue >> 8 );
1238
1239     return true ;
1240 }
1241
1242 void wxDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
1243 {
1244     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawLine - invalid DC") );
1245
1246 #if !wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
1247     if ( m_logicalFunction != wxCOPY )
1248         return ;
1249 #endif
1250
1251     wxCoord xx1 = XLOG2DEVMAC(x1) ;
1252     wxCoord yy1 = YLOG2DEVMAC(y1) ;
1253     wxCoord xx2 = XLOG2DEVMAC(x2) ;
1254     wxCoord yy2 = YLOG2DEVMAC(y2) ;
1255
1256     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1257     path->MoveToPoint( xx1, yy1 ) ;
1258     path->AddLineToPoint( xx2 , yy2 ) ;
1259     path->CloseSubpath() ;
1260     m_graphicContext->StrokePath( path ) ;
1261     delete path ;
1262
1263     CalcBoundingBox(x1, y1);
1264     CalcBoundingBox(x2, y2);
1265 }
1266
1267 void wxDC::DoCrossHair( wxCoord x, wxCoord y )
1268 {
1269     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoCrossHair - invalid DC") );
1270
1271     if ( m_logicalFunction != wxCOPY )
1272         return ;
1273
1274     int w = 0, h = 0;
1275
1276     GetSize( &w, &h );
1277     wxCoord xx = XLOG2DEVMAC(x);
1278     wxCoord yy = YLOG2DEVMAC(y);
1279
1280     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1281     path->MoveToPoint( XLOG2DEVMAC(0), yy ) ;
1282     path->AddLineToPoint( XLOG2DEVMAC(w), yy ) ;
1283     path->CloseSubpath() ;
1284     path->MoveToPoint( xx, YLOG2DEVMAC(0) ) ;
1285     path->AddLineToPoint( xx, YLOG2DEVMAC(h) ) ;
1286     path->CloseSubpath() ;
1287     m_graphicContext->StrokePath( path ) ;
1288     delete path ;
1289
1290     CalcBoundingBox(x, y);
1291     CalcBoundingBox(x + w, y + h);
1292 }
1293
1294 void wxDC::DoDrawArc( wxCoord x1, wxCoord y1,
1295                       wxCoord x2, wxCoord y2,
1296                       wxCoord xc, wxCoord yc )
1297 {
1298     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawArc - invalid DC") );
1299
1300     if ( m_logicalFunction != wxCOPY )
1301         return ;
1302
1303     wxCoord xx1 = XLOG2DEVMAC(x1);
1304     wxCoord yy1 = YLOG2DEVMAC(y1);
1305     wxCoord xx2 = XLOG2DEVMAC(x2);
1306     wxCoord yy2 = YLOG2DEVMAC(y2);
1307     wxCoord xxc = XLOG2DEVMAC(xc);
1308     wxCoord yyc = YLOG2DEVMAC(yc);
1309
1310     double dx = xx1 - xxc;
1311     double dy = yy1 - yyc;
1312     double radius = sqrt((double)(dx * dx + dy * dy));
1313     wxCoord rad = (wxCoord)radius;
1314     double sa, ea;
1315     if (xx1 == xx2 && yy1 == yy2)
1316     {
1317         sa = 0.0;
1318         ea = 360.0;
1319     }
1320     else if (radius == 0.0)
1321     {
1322         sa = ea = 0.0;
1323     }
1324     else
1325     {
1326         sa = (xx1 - xxc == 0) ?
1327             (yy1 - yyc < 0) ? 90.0 : -90.0 :
1328         -atan2(double(yy1 - yyc), double(xx1 - xxc)) * RAD2DEG;
1329         ea = (xx2 - xxc == 0) ?
1330             (yy2 - yyc < 0) ? 90.0 : -90.0 :
1331         -atan2(double(yy2 - yyc), double(xx2 - xxc)) * RAD2DEG;
1332     }
1333
1334     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
1335     wxMacCGContext* mctx = ((wxMacCGContext*) m_graphicContext) ;
1336     CGContextRef ctx = mctx->GetNativeContext() ;
1337     CGContextSaveGState( ctx ) ;
1338     CGContextTranslateCTM( ctx, xxc , yyc );
1339     CGContextScaleCTM( ctx , 1 , -1 ) ;
1340     if ( fill )
1341         CGContextMoveToPoint( ctx , 0 , 0 ) ;
1342     CGContextAddArc( ctx, 0, 0 , rad , DegToRad(sa), DegToRad(ea), 0 );
1343     if ( fill )
1344         CGContextAddLineToPoint( ctx , 0 , 0 ) ;
1345     CGContextRestoreGState( ctx ) ;
1346     CGContextDrawPath( ctx , mctx->GetDrawingMode() ) ;
1347 }
1348
1349 void wxDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord w, wxCoord h,
1350                               double sa, double ea )
1351 {
1352     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawEllipticArc - invalid DC") );
1353
1354     if ( m_logicalFunction != wxCOPY )
1355         return ;
1356
1357     wxCoord xx = XLOG2DEVMAC(x);
1358     wxCoord yy = YLOG2DEVMAC(y);
1359     wxCoord ww = m_signX * XLOG2DEVREL(w);
1360     wxCoord hh = m_signY * YLOG2DEVREL(h);
1361
1362     // handle -ve width and/or height
1363     if (ww < 0)
1364     {
1365         ww = -ww;
1366         xx = xx - ww;
1367     }
1368     if (hh < 0)
1369     {
1370         hh = -hh;
1371         yy = yy - hh;
1372     }
1373
1374     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
1375
1376     wxMacCGContext* mctx = ((wxMacCGContext*) m_graphicContext) ;
1377     CGContextRef ctx = mctx->GetNativeContext() ;
1378
1379     CGContextSaveGState( ctx ) ;
1380     CGContextTranslateCTM( ctx, xx + ww / 2, yy + hh / 2 );
1381     CGContextScaleCTM( ctx , 1 * ww / 2 , -1 * hh / 2 ) ;
1382     if ( fill )
1383         CGContextMoveToPoint( ctx , 0 , 0 ) ;
1384     CGContextAddArc( ctx, 0, 0, 1, DegToRad( sa ), DegToRad( ea ), 0 );
1385     if ( fill )
1386         CGContextAddLineToPoint( ctx , 0 , 0 ) ;
1387     CGContextRestoreGState( ctx ) ;
1388     CGContextDrawPath( ctx , mctx->GetDrawingMode() ) ;
1389 }
1390
1391 void wxDC::DoDrawPoint( wxCoord x, wxCoord y )
1392 {
1393     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawPoint - invalid DC") );
1394
1395     DoDrawLine( x , y , x + 1 , y + 1 ) ;
1396 }
1397
1398 void wxDC::DoDrawLines(int n, wxPoint points[],
1399                         wxCoord xoffset, wxCoord yoffset)
1400 {
1401     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawLines - invalid DC") );
1402
1403 #if !wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
1404     if ( m_logicalFunction != wxCOPY )
1405         return ;
1406 #endif
1407
1408     wxCoord x1, x2 , y1 , y2 ;
1409     x1 = XLOG2DEVMAC(points[0].x + xoffset);
1410     y1 = YLOG2DEVMAC(points[0].y + yoffset);
1411     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1412     path->MoveToPoint( x1 , y1 ) ;
1413     for (int i = 1; i < n; i++)
1414     {
1415         x2 = XLOG2DEVMAC(points[i].x + xoffset);
1416         y2 = YLOG2DEVMAC(points[i].y + yoffset);
1417
1418         path->AddLineToPoint( x2 , y2 ) ;
1419     }
1420
1421     m_graphicContext->StrokePath( path ) ;
1422     delete path ;
1423 }
1424
1425 #if wxUSE_SPLINES
1426 void wxDC::DoDrawSpline(wxList *points)
1427 {
1428     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawSpline - invalid DC") );
1429
1430     if ( m_logicalFunction != wxCOPY )
1431         return ;
1432
1433     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1434
1435     wxList::compatibility_iterator node = points->GetFirst();
1436     if (node == wxList::compatibility_iterator())
1437         // empty list
1438         return;
1439
1440     wxPoint *p = (wxPoint *)node->GetData();
1441
1442     wxCoord x1 = p->x;
1443     wxCoord y1 = p->y;
1444
1445     node = node->GetNext();
1446     p = (wxPoint *)node->GetData();
1447
1448     wxCoord x2 = p->x;
1449     wxCoord y2 = p->y;
1450     wxCoord cx1 = ( x1 + x2 ) / 2;
1451     wxCoord cy1 = ( y1 + y2 ) / 2;
1452
1453     path->MoveToPoint( XLOG2DEVMAC( x1 ) , XLOG2DEVMAC( y1 ) ) ;
1454     path->AddLineToPoint( XLOG2DEVMAC( cx1 ) , XLOG2DEVMAC( cy1 ) ) ;
1455
1456 #if !wxUSE_STL
1457     while ((node = node->GetNext()) != NULL)
1458 #else
1459     while ((node = node->GetNext()))
1460 #endif // !wxUSE_STL
1461     {
1462         p = (wxPoint *)node->GetData();
1463         x1 = x2;
1464         y1 = y2;
1465         x2 = p->x;
1466         y2 = p->y;
1467         wxCoord cx4 = (x1 + x2) / 2;
1468         wxCoord cy4 = (y1 + y2) / 2;
1469
1470         path->AddQuadCurveToPoint(
1471             XLOG2DEVMAC( x1 ) , XLOG2DEVMAC( y1 ) ,
1472             XLOG2DEVMAC( cx4 ) , XLOG2DEVMAC( cy4 ) ) ;
1473
1474         cx1 = cx4;
1475         cy1 = cy4;
1476     }
1477
1478     path->AddLineToPoint( XLOG2DEVMAC( x2 ) , XLOG2DEVMAC( y2 ) ) ;
1479
1480     m_graphicContext->StrokePath( path ) ;
1481     delete path ;
1482 }
1483 #endif
1484
1485 void wxDC::DoDrawPolygon( int n, wxPoint points[],
1486                           wxCoord xoffset, wxCoord yoffset,
1487                           int fillStyle )
1488 {
1489     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawPolygon - invalid DC") );
1490
1491     if ( n <= 0 || (m_brush.GetStyle() == wxTRANSPARENT && m_pen.GetStyle() == wxTRANSPARENT ) )
1492         return ;
1493     if ( m_logicalFunction != wxCOPY )
1494         return ;
1495
1496     wxCoord x1, x2 , y1 , y2 ;
1497     x2 = x1 = XLOG2DEVMAC(points[0].x + xoffset);
1498     y2 = y1 = YLOG2DEVMAC(points[0].y + yoffset);
1499
1500     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1501     path->MoveToPoint( x1 , y1 ) ;
1502     for (int i = 1; i < n; i++)
1503     {
1504         x2 = XLOG2DEVMAC(points[i].x + xoffset);
1505         y2 = YLOG2DEVMAC(points[i].y + yoffset);
1506
1507         path->AddLineToPoint( x2 , y2 ) ;
1508     }
1509
1510     if ( x1 != x2 || y1 != y2 )
1511         path->AddLineToPoint( x1, y1 ) ;
1512
1513     path->CloseSubpath() ;
1514     m_graphicContext->DrawPath( path , fillStyle ) ;
1515
1516     delete path ;
1517 }
1518
1519 void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1520 {
1521     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRectangle - invalid DC") );
1522
1523     if ( m_logicalFunction != wxCOPY )
1524         return ;
1525
1526     wxCoord xx = XLOG2DEVMAC(x);
1527     wxCoord yy = YLOG2DEVMAC(y);
1528     wxCoord ww = m_signX * XLOG2DEVREL(width);
1529     wxCoord hh = m_signY * YLOG2DEVREL(height);
1530
1531     // CMB: draw nothing if transformed w or h is 0
1532     if (ww == 0 || hh == 0)
1533         return;
1534
1535     // CMB: handle -ve width and/or height
1536     if (ww < 0)
1537     {
1538         ww = -ww;
1539         xx = xx - ww;
1540     }
1541     if (hh < 0)
1542     {
1543         hh = -hh;
1544         yy = yy - hh;
1545     }
1546
1547     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1548     path->AddRectangle( xx , yy , ww , hh ) ;
1549     m_graphicContext->DrawPath( path ) ;
1550     delete path ;
1551 }
1552
1553 void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y,
1554                                    wxCoord width, wxCoord height,
1555                                    double radius)
1556 {
1557     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRoundedRectangle - invalid DC") );
1558
1559     if ( m_logicalFunction != wxCOPY )
1560         return ;
1561
1562     if (radius < 0.0)
1563         radius = - radius * ((width < height) ? width : height);
1564     wxCoord xx = XLOG2DEVMAC(x);
1565     wxCoord yy = YLOG2DEVMAC(y);
1566     wxCoord ww = m_signX * XLOG2DEVREL(width);
1567     wxCoord hh = m_signY * YLOG2DEVREL(height);
1568
1569     // CMB: draw nothing if transformed w or h is 0
1570     if (ww == 0 || hh == 0)
1571         return;
1572
1573     // CMB: handle -ve width and/or height
1574     if (ww < 0)
1575     {
1576         ww = -ww;
1577         xx = xx - ww;
1578     }
1579     if (hh < 0)
1580     {
1581         hh = -hh;
1582         yy = yy - hh;
1583     }
1584
1585     wxMacCGContext* mctx = ((wxMacCGContext*) m_graphicContext) ;
1586     CGContextRef ctx = mctx->GetNativeContext() ;
1587     AddRoundedRectToPath( ctx , CGRectMake( xx , yy , ww , hh ) , 16 ,16 ) ;
1588     CGContextDrawPath( ctx , mctx->GetDrawingMode() ) ;
1589 }
1590
1591 void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1592 {
1593     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawEllipse - invalid DC") );
1594
1595     if ( m_logicalFunction != wxCOPY )
1596         return ;
1597
1598     wxCoord xx = XLOG2DEVMAC(x);
1599     wxCoord yy = YLOG2DEVMAC(y);
1600     wxCoord ww = m_signX * XLOG2DEVREL(width);
1601     wxCoord hh = m_signY * YLOG2DEVREL(height);
1602
1603     // CMB: draw nothing if transformed w or h is 0
1604     if (ww == 0 || hh == 0)
1605         return;
1606
1607     // CMB: handle -ve width and/or height
1608     if (ww < 0)
1609     {
1610         ww = -ww;
1611         xx = xx - ww;
1612     }
1613     if (hh < 0)
1614     {
1615         hh = -hh;
1616         yy = yy - hh;
1617     }
1618
1619     wxMacCGContext* mctx = ((wxMacCGContext*) m_graphicContext) ;
1620     CGContextRef ctx = mctx->GetNativeContext() ;
1621     CGContextSaveGState( ctx ) ;
1622     CGContextTranslateCTM( ctx, xx + ww / 2, yy + hh / 2 );
1623     CGContextScaleCTM( ctx , ww / 2 , hh / 2 ) ;
1624     CGContextAddArc( ctx, 0, 0, 1, 0 , 2 * M_PI , 0 );
1625     CGContextRestoreGState( ctx ) ;
1626     CGContextDrawPath( ctx , mctx->GetDrawingMode() ) ;
1627 }
1628
1629 bool wxDC::CanDrawBitmap() const
1630 {
1631     return true ;
1632 }
1633
1634 bool wxDC::DoBlit(
1635     wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
1636     wxDC *source, wxCoord xsrc, wxCoord ysrc, int logical_func , bool useMask,
1637     wxCoord xsrcMask, wxCoord ysrcMask )
1638 {
1639     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoBlit - invalid DC") );
1640     wxCHECK_MSG( source->Ok(), false, wxT("wxDC(cg)::DoBlit - invalid source DC") );
1641
1642     if ( logical_func == wxNO_OP )
1643         return true ;
1644
1645     if (xsrcMask == -1 && ysrcMask == -1)
1646     {
1647         xsrcMask = xsrc;
1648         ysrcMask = ysrc;
1649     }
1650
1651     wxCoord yysrc = source->YLOG2DEVMAC(ysrc) ;
1652     wxCoord xxsrc = source->XLOG2DEVMAC(xsrc) ;
1653     wxCoord wwsrc = source->XLOG2DEVREL(width) ;
1654     wxCoord hhsrc = source->YLOG2DEVREL(height) ;
1655
1656     wxCoord yydest = YLOG2DEVMAC(ydest) ;
1657     wxCoord xxdest = XLOG2DEVMAC(xdest) ;
1658     wxCoord wwdest = XLOG2DEVREL(width) ;
1659     wxCoord hhdest = YLOG2DEVREL(height) ;
1660
1661     wxMemoryDC* memdc = dynamic_cast<wxMemoryDC*>(source) ;
1662     if ( memdc && logical_func == wxCOPY )
1663     {
1664         wxBitmap blit = memdc->GetSelectedObject() ;
1665
1666         wxASSERT_MSG( blit.Ok() , wxT("Invalid bitmap for blitting") ) ;
1667
1668         wxCoord bmpwidth = blit.GetWidth();
1669         wxCoord bmpheight = blit.GetHeight();
1670
1671         if ( xxsrc != 0 || yysrc != 0 || bmpwidth != wwsrc || bmpheight != hhsrc )
1672         {
1673             wwsrc = wxMin( wwsrc , bmpwidth - xxsrc ) ;
1674             hhsrc = wxMin( hhsrc , bmpheight - yysrc ) ;
1675             if ( wwsrc > 0 && hhsrc > 0 )
1676             {
1677                 if ( xxsrc >= 0 && yysrc >= 0 )
1678                 {
1679                     wxRect subrect( xxsrc, yysrc, wwsrc , hhsrc ) ;
1680                     blit = blit.GetSubBitmap( subrect ) ;
1681                 }
1682                 else
1683                 {
1684                     // in this case we'd probably have to adjust the different coordinates, but
1685                     // we have to find out proper contract first
1686                     blit = wxNullBitmap ;
1687                 }
1688             }
1689             else
1690             {
1691                 blit = wxNullBitmap ;
1692             }
1693         }
1694
1695         if ( blit.Ok() )
1696         {
1697             CGContextRef cg = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1698             CGImageRef image = (CGImageRef)( blit.CGImageCreate() ) ;
1699             HIRect r = CGRectMake( xxdest , yydest , wwdest , hhdest ) ;
1700             HIViewDrawCGImage( cg , &r , image ) ;
1701             CGImageRelease( image ) ;
1702         }
1703     }
1704     else
1705     {
1706 #if 0
1707         CGContextRef cg = (wxMacCGContext*)(source->GetGraphicContext())->GetNativeContext() ;
1708         void *data = CGBitmapContextGetData( cg ) ;
1709 #endif
1710
1711         return false ; // wxFAIL_MSG( wxT("Blitting is only supported from bitmap contexts") ) ;
1712     }
1713
1714     return true;
1715 }
1716
1717 void wxDC::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y,
1718                               double angle)
1719 {
1720     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRotatedText - invalid DC") );
1721     wxCHECK_RET( m_macATSUIStyle != NULL, wxT("wxDC(cg)::DoDrawRotatedText - no valid font set") );
1722
1723     if ( str.Length() == 0 )
1724         return ;
1725     if ( m_logicalFunction != wxCOPY )
1726         return ;
1727
1728     OSStatus status = noErr ;
1729     ATSUTextLayout atsuLayout ;
1730     UniCharCount chars = str.Length() ;
1731     UniChar* ubuf = NULL ;
1732
1733 #if SIZEOF_WCHAR_T == 4
1734     wxMBConvUTF16 converter ;
1735 #if wxUSE_UNICODE
1736     size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 ) ;
1737     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1738     converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 ) ;
1739 #else
1740     const wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1741     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
1742     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1743     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
1744 #endif
1745     chars = unicharlen / 2 ;
1746 #else
1747 #if wxUSE_UNICODE
1748     ubuf = (UniChar*) str.wc_str() ;
1749 #else
1750     wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1751     chars = wxWcslen( wchar.data() ) ;
1752     ubuf = (UniChar*) wchar.data() ;
1753 #endif
1754 #endif
1755
1756     int drawX = XLOG2DEVMAC(x) ;
1757     int drawY = YLOG2DEVMAC(y) ;
1758
1759     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1760         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
1761
1762     wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
1763
1764     status = ::ATSUSetTransientFontMatching( atsuLayout , true ) ;
1765     wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
1766
1767     int iAngle = int( angle );
1768     if ( abs(iAngle) > 0 )
1769     {
1770         Fixed atsuAngle = IntToFixed( iAngle ) ;
1771         ATSUAttributeTag atsuTags[] =
1772         {
1773             kATSULineRotationTag ,
1774         } ;
1775         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1776         {
1777             sizeof( Fixed ) ,
1778         } ;
1779         ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1780         {
1781             &atsuAngle ,
1782         } ;
1783         status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
1784             atsuTags, atsuSizes, atsuValues ) ;
1785     }
1786
1787     {
1788         CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1789         ATSUAttributeTag atsuTags[] =
1790         {
1791             kATSUCGContextTag ,
1792         } ;
1793         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1794         {
1795             sizeof( CGContextRef ) ,
1796         } ;
1797         ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1798         {
1799             &cgContext ,
1800         } ;
1801         status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
1802             atsuTags, atsuSizes, atsuValues ) ;
1803     }
1804
1805     ATSUTextMeasurement textBefore, textAfter ;
1806     ATSUTextMeasurement ascent, descent ;
1807
1808     status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1809         &textBefore , &textAfter, &ascent , &descent );
1810
1811     wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
1812
1813     Rect rect ;
1814
1815     if ( m_backgroundMode == wxSOLID )
1816     {
1817         wxGraphicPath* path = m_graphicContext->CreatePath() ;
1818         path->MoveToPoint( drawX , drawY ) ;
1819         path->AddLineToPoint(
1820             (int) (drawX + sin(angle / RAD2DEG) * FixedToInt(ascent + descent)) ,
1821             (int) (drawY + cos(angle / RAD2DEG) * FixedToInt(ascent + descent)) ) ;
1822         path->AddLineToPoint(
1823             (int) (drawX + sin(angle / RAD2DEG) * FixedToInt(ascent + descent ) + cos(angle / RAD2DEG) * FixedToInt(textAfter)) ,
1824             (int) (drawY + cos(angle / RAD2DEG) * FixedToInt(ascent + descent) - sin(angle / RAD2DEG) * FixedToInt(textAfter)) ) ;
1825         path->AddLineToPoint(
1826             (int) (drawX + cos(angle / RAD2DEG) * FixedToInt(textAfter)) ,
1827             (int) (drawY - sin(angle / RAD2DEG) * FixedToInt(textAfter)) ) ;
1828
1829         m_graphicContext->FillPath( path , m_textBackgroundColour ) ;
1830         delete path ;
1831     }
1832
1833     drawX += (int)(sin(angle / RAD2DEG) * FixedToInt(ascent));
1834     drawY += (int)(cos(angle / RAD2DEG) * FixedToInt(ascent));
1835
1836     status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1837         IntToFixed(drawX) , IntToFixed(drawY) , &rect );
1838     wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
1839
1840     CGContextSaveGState(((wxMacCGContext*)(m_graphicContext))->GetNativeContext());
1841     CGContextTranslateCTM(((wxMacCGContext*)(m_graphicContext))->GetNativeContext(), drawX, drawY);
1842     CGContextScaleCTM(((wxMacCGContext*)(m_graphicContext))->GetNativeContext(), 1, -1);
1843     status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1844         IntToFixed(0) , IntToFixed(0) );
1845
1846     wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
1847
1848     CGContextRestoreGState( ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ) ;
1849
1850     CalcBoundingBox(XDEV2LOG(rect.left), YDEV2LOG(rect.top) );
1851     CalcBoundingBox(XDEV2LOG(rect.right), YDEV2LOG(rect.bottom) );
1852
1853     ::ATSUDisposeTextLayout(atsuLayout);
1854
1855 #if SIZEOF_WCHAR_T == 4
1856     free( ubuf ) ;
1857 #endif
1858 }
1859
1860 void wxDC::DoDrawText(const wxString& strtext, wxCoord x, wxCoord y)
1861 {
1862     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawText - invalid DC") );
1863
1864     DoDrawRotatedText( strtext , x , y , 0.0 ) ;
1865 }
1866
1867 bool wxDC::CanGetTextExtent() const
1868 {
1869     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::CanGetTextExtent - invalid DC") );
1870
1871     return true ;
1872 }
1873
1874 void wxDC::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *height,
1875                             wxCoord *descent, wxCoord *externalLeading ,
1876                             wxFont *theFont ) const
1877 {
1878     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoGetTextExtent - invalid DC") );
1879
1880     wxFont formerFont = m_font ;
1881     if ( theFont )
1882     {
1883         // work around the const-ness
1884         *((wxFont*)(&m_font)) = *theFont ;
1885         MacInstallFont() ;
1886     }
1887
1888     if ( str.Length() == 0 )
1889         return ;
1890
1891     wxCHECK_RET( m_macATSUIStyle != NULL, wxT("wxDC(cg)::DoGetTextExtent - no valid font set") ) ;
1892
1893     OSStatus status = noErr ;
1894     ATSUTextLayout atsuLayout ;
1895     UniCharCount chars = str.Length() ;
1896     UniChar* ubuf = NULL ;
1897
1898 #if SIZEOF_WCHAR_T == 4
1899     wxMBConvUTF16 converter ;
1900 #if wxUSE_UNICODE
1901     size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 ) ;
1902     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1903     converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 ) ;
1904 #else
1905     const wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1906     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
1907     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1908     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
1909 #endif
1910     chars = unicharlen / 2 ;
1911 #else
1912 #if wxUSE_UNICODE
1913     ubuf = (UniChar*) str.wc_str() ;
1914 #else
1915     wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1916     chars = wxWcslen( wchar.data() ) ;
1917     ubuf = (UniChar*) wchar.data() ;
1918 #endif
1919 #endif
1920
1921     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1922         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
1923
1924     wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
1925
1926     ATSUTextMeasurement textBefore, textAfter ;
1927     ATSUTextMeasurement textAscent, textDescent ;
1928
1929     status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1930         &textBefore , &textAfter, &textAscent , &textDescent );
1931
1932     if ( height )
1933         *height = YDEV2LOGREL( FixedToInt(textAscent + textDescent) ) ;
1934     if ( descent )
1935         *descent =YDEV2LOGREL( FixedToInt(textDescent) );
1936     if ( externalLeading )
1937         *externalLeading = 0 ;
1938     if ( width )
1939         *width = XDEV2LOGREL( FixedToInt(textAfter - textBefore) ) ;
1940
1941     ::ATSUDisposeTextLayout(atsuLayout);
1942
1943 #if SIZEOF_WCHAR_T == 4
1944     free( ubuf ) ;
1945 #endif
1946
1947     if ( theFont )
1948     {
1949         // work around the constness
1950         *((wxFont*)(&m_font)) = formerFont ;
1951         MacInstallFont() ;
1952     }
1953 }
1954
1955 bool wxDC::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
1956 {
1957     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoGetPartialTextExtents - invalid DC") );
1958
1959     widths.Empty();
1960     widths.Add(0, text.Length());
1961
1962     if (text.Length() == 0)
1963         return false;
1964
1965     ATSUTextLayout atsuLayout ;
1966     UniCharCount chars = text.Length() ;
1967     UniChar* ubuf = NULL ;
1968
1969 #if SIZEOF_WCHAR_T == 4
1970     wxMBConvUTF16 converter ;
1971 #if wxUSE_UNICODE
1972     size_t unicharlen = converter.WC2MB( NULL , text.wc_str() , 0 ) ;
1973     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1974     converter.WC2MB( (char*) ubuf , text.wc_str(), unicharlen + 2 ) ;
1975 #else
1976     const wxWCharBuffer wchar = text.wc_str( wxConvLocal ) ;
1977     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
1978     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1979     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
1980 #endif
1981     chars = unicharlen / 2 ;
1982 #else
1983 #if wxUSE_UNICODE
1984     ubuf = (UniChar*) text.wc_str() ;
1985 #else
1986     wxWCharBuffer wchar = text.wc_str( wxConvLocal ) ;
1987     chars = wxWcslen( wchar.data() ) ;
1988     ubuf = (UniChar*) wchar.data() ;
1989 #endif
1990 #endif
1991
1992     OSStatus status;
1993     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1994         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
1995
1996     for ( int pos = 0; pos < (int)chars; pos ++ )
1997     {
1998         unsigned long actualNumberOfBounds = 0;
1999         ATSTrapezoid glyphBounds;
2000
2001         // We get a single bound, since the text should only require one. If it requires more, there is an issue
2002         OSStatus result;
2003         result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
2004             kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
2005         if (result != noErr || actualNumberOfBounds != 1 )
2006             return false;
2007
2008         widths[pos] = XDEV2LOGREL(FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x ));
2009         //unsigned char uch = s[i];
2010     }
2011
2012     ::ATSUDisposeTextLayout(atsuLayout);
2013     return true;
2014 }
2015
2016 wxCoord wxDC::GetCharWidth(void) const
2017 {
2018     wxCoord width ;
2019     DoGetTextExtent( wxT("g") , &width , NULL , NULL , NULL , NULL ) ;
2020
2021     return width ;
2022 }
2023
2024 wxCoord wxDC::GetCharHeight(void) const
2025 {
2026     wxCoord height ;
2027     DoGetTextExtent( wxT("g") , NULL , &height , NULL , NULL , NULL ) ;
2028
2029     return height ;
2030 }
2031
2032 void wxDC::Clear(void)
2033 {
2034     wxCHECK_RET( Ok(), wxT("wxDC(cg)::Clear - invalid DC") );
2035
2036     if (m_backgroundBrush.Ok() && m_backgroundBrush.GetStyle() != wxTRANSPARENT)
2037     {
2038         HIRect rect = CGRectMake( -10000 , -10000 , 20000 , 20000 ) ;
2039         CGContextRef cg = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
2040         switch ( m_backgroundBrush.MacGetBrushKind() )
2041         {
2042             case kwxMacBrushTheme :
2043                 {
2044 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
2045                     if ( HIThemeSetFill != 0 )
2046                     {
2047                         HIThemeSetFill( m_backgroundBrush.MacGetTheme(), NULL, cg, kHIThemeOrientationNormal );
2048                         CGContextFillRect(cg, rect);
2049
2050                     }
2051                     else
2052 #endif
2053                     {
2054                         RGBColor color;
2055                         GetThemeBrushAsColor( m_backgroundBrush.MacGetTheme(), 32, true, &color );
2056                         CGContextSetRGBFillColor( cg, (float) color.red / 65536,
2057                             (float) color.green / 65536, (float) color.blue / 65536, 1 );
2058                             CGContextFillRect( cg, rect );
2059                     }
2060
2061                     // reset to normal value
2062                     RGBColor col = MAC_WXCOLORREF( GetBrush().GetColour().GetPixel() ) ;
2063                     CGContextSetRGBFillColor( cg, col.red / 65536.0, col.green / 65536.0, col.blue / 65536.0, 1.0 );
2064                 }
2065                 break ;
2066
2067             case kwxMacBrushThemeBackground :
2068                 {
2069                     wxFAIL_MSG( wxT("There shouldn't be theme backgrounds under Quartz") ) ;
2070
2071 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_3
2072                     if ( UMAGetSystemVersion() >= 0x1030 )
2073                     {
2074                         HIThemeBackgroundDrawInfo drawInfo ;
2075                         drawInfo.version = 0 ;
2076                         drawInfo.state = kThemeStateActive ;
2077                         drawInfo.kind = m_backgroundBrush.MacGetThemeBackground( NULL ) ;
2078                         if ( drawInfo.kind == kThemeBackgroundMetal )
2079                         {
2080                             HIThemeDrawBackground( &rect, &drawInfo, cg, kHIThemeOrientationNormal ) ;
2081                             HIThemeApplyBackground( &rect, &drawInfo, cg, kHIThemeOrientationNormal ) ;
2082                         }
2083                     }
2084 #endif
2085                 }
2086                 break ;
2087
2088             case kwxMacBrushColour :
2089                 {
2090                     // FIXME: doesn't correctly render stippled brushes !!
2091                     // FIXME: should this be replaced by ::SetBrush() ??
2092
2093                     RGBColor col = MAC_WXCOLORREF( m_backgroundBrush.GetColour().GetPixel()) ;
2094                     CGContextSetRGBFillColor( cg , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
2095                     CGContextFillRect(cg, rect);
2096
2097                     // reset to normal value
2098                     col = MAC_WXCOLORREF( GetBrush().GetColour().GetPixel() ) ;
2099                     CGContextSetRGBFillColor( cg , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
2100                 }
2101                 break ;
2102
2103             default :
2104                 wxFAIL_MSG( wxT("unknown brush kind") ) ;
2105                 break ;
2106         }
2107     }
2108 }
2109
2110 void wxDC::MacInstallFont() const
2111 {
2112     wxCHECK_RET( Ok(), wxT("wxDC(cg)::MacInstallFont - invalid DC") );
2113
2114     if ( m_macATSUIStyle )
2115     {
2116         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
2117         m_macATSUIStyle = NULL ;
2118     }
2119
2120     if ( m_font.Ok() )
2121     {
2122         OSStatus status ;
2123
2124         status = ATSUCreateAndCopyStyle( (ATSUStyle) m_font.MacGetATSUStyle() , (ATSUStyle*) &m_macATSUIStyle ) ;
2125
2126         wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") ) ;
2127
2128         Fixed atsuSize = IntToFixed( int(m_scaleY * m_font.MacGetFontSize()) ) ;
2129         RGBColor atsuColor = MAC_WXCOLORREF( m_textForegroundColour.GetPixel() ) ;
2130         ATSUAttributeTag atsuTags[] =
2131         {
2132                 kATSUSizeTag ,
2133                 kATSUColorTag ,
2134         } ;
2135         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2136         {
2137                 sizeof( Fixed ) ,
2138                 sizeof( RGBColor ) ,
2139         } ;
2140         ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2141         {
2142                 &atsuSize ,
2143                 &atsuColor ,
2144         } ;
2145
2146         status = ::ATSUSetAttributes(
2147             (ATSUStyle)m_macATSUIStyle, sizeof(atsuTags) / sizeof(ATSUAttributeTag) ,
2148             atsuTags, atsuSizes, atsuValues);
2149
2150         wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") ) ;
2151     }
2152 }
2153
2154 #pragma mark -
2155
2156 // ---------------------------------------------------------------------------
2157 // coordinates transformations
2158 // ---------------------------------------------------------------------------
2159
2160 wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
2161 {
2162     return ((wxDC *)this)->XDEV2LOG(x);
2163 }
2164
2165 wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
2166 {
2167     return ((wxDC *)this)->YDEV2LOG(y);
2168 }
2169
2170 wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
2171 {
2172     return ((wxDC *)this)->XDEV2LOGREL(x);
2173 }
2174
2175 wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
2176 {
2177     return ((wxDC *)this)->YDEV2LOGREL(y);
2178 }
2179
2180 wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
2181 {
2182     return ((wxDC *)this)->XLOG2DEV(x);
2183 }
2184
2185 wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
2186 {
2187     return ((wxDC *)this)->YLOG2DEV(y);
2188 }
2189
2190 wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
2191 {
2192     return ((wxDC *)this)->XLOG2DEVREL(x);
2193 }
2194
2195 wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
2196 {
2197     return ((wxDC *)this)->YLOG2DEVREL(y);
2198 }
2199
2200 #endif // wxMAC_USE_CORE_GRAPHICS
2201