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 //-----------------------------------------------------------------------------
  41 // constants
  42 //-----------------------------------------------------------------------------
  43
  44 #if !defined( __DARWIN__ ) || defined(__MWERKS__)
  45 #ifndef M_PI
  46 const double M_PI = 3.14159265358979 ;
  47 #endif
  48 #endif
  49
  50 const double RAD2DEG  = 180.0 / M_PI;
  51 const short kEmulatedMode = -1 ;
  52 const short kUnsupportedMode = -2 ;
  53
  54 extern TECObjectRef s_TECNativeCToUnicode ;
  55
  56
  57 // TODO: update
  58 // The textctrl implementation still needs that (needs what?) for the non-HIView implementation
  59 //
  60 wxMacWindowClipper::wxMacWindowClipper( const wxWindow* win ) :
  61     wxMacPortSaver( (GrafPtr) GetWindowPort((WindowRef) win->MacGetTopLevelWindowRef()) )
  62 {
  63     m_newPort = (GrafPtr) GetWindowPort((WindowRef) win->MacGetTopLevelWindowRef()) ;
  64     m_formerClip = NewRgn() ;
  65     m_newClip = NewRgn() ;
  66     GetClip( m_formerClip ) ;
  67
  68     if ( win )
  69     {
  70         // guard against half constructed objects, this just leads to a empty clip
  71         if ( win->GetPeer() )
  72         {
  73             int x = 0 , y = 0;
  74             win->MacWindowToRootWindow( &x, &y ) ;
  75             // get area including focus rect
  76             CopyRgn( (RgnHandle) ((wxWindow*)win)->MacGetVisibleRegion(true).GetWXHRGN() , m_newClip ) ;
  77             if ( !EmptyRgn( m_newClip ) )
  78                 OffsetRgn( m_newClip , x , y ) ;
  79         }
  80
  81         SetClip( m_newClip ) ;
  82     }
  83 }
  84
  85 wxMacWindowClipper::~wxMacWindowClipper()
  86 {
  87     SetPort( m_newPort ) ;
  88     SetClip( m_formerClip ) ;
  89     DisposeRgn( m_newClip ) ;
  90     DisposeRgn( m_formerClip ) ;
  91 }
  92
  93 wxMacWindowStateSaver::wxMacWindowStateSaver( const wxWindow* win ) :
  94     wxMacWindowClipper( win )
  95 {
  96     // the port is already set at this point
  97     m_newPort = (GrafPtr) GetWindowPort((WindowRef) win->MacGetTopLevelWindowRef()) ;
  98     GetThemeDrawingState( &m_themeDrawingState ) ;
  99 }
 100
 101 wxMacWindowStateSaver::~wxMacWindowStateSaver()
 102 {
 103     SetPort( m_newPort ) ;
 104     SetThemeDrawingState( m_themeDrawingState , true ) ;
 105 }
 106
 107 // minimal implementation only used for appearance drawing < 10.3
 108
 109 wxMacPortSetter::wxMacPortSetter( const wxDC* dc ) :
 110     m_ph( (GrafPtr) dc->m_macPort )
 111 {
 112     wxASSERT( dc->Ok() ) ;
 113     m_dc = dc ;
 114
 115 //    dc->MacSetupPort(&m_ph) ;
 116 }
 117
 118 wxMacPortSetter::~wxMacPortSetter()
 119 {
 120 //    m_dc->MacCleanupPort(&m_ph) ;
 121 }
 122
 123 //-----------------------------------------------------------------------------
 124 // Local functions
 125 //-----------------------------------------------------------------------------
 126
 127 static inline double dmin(double a, double b) { return a < b ? a : b; }
 128 static inline double dmax(double a, double b) { return a > b ? a : b; }
 129 static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
 130
 131 //-----------------------------------------------------------------------------
 132 // device context implementation
 133 //
 134 // more and more of the dc functionality should be implemented by calling
 135 // the appropricate wxMacCGContext, but we will have to do that step by step
 136 // also coordinate conversions should be moved to native matrix ops
 137 //-----------------------------------------------------------------------------
 138
 139 // we always stock two context states, one at entry, to be able to preserve the
 140 // state we were called with, the other one after changing to HI Graphics orientation
 141 // (this one is used for getting back clippings etc)
 142
 143 wxMacCGPath::wxMacCGPath()
 144 {
 145     m_path = CGPathCreateMutable() ;
 146 }
 147
 148 wxMacCGPath::~wxMacCGPath()
 149 {
 150     CGPathRelease( m_path ) ;
 151 }
 152
 153 // opens (starts) a new subpath
 154 void wxMacCGPath::MoveToPoint( wxCoord x1 , wxCoord y1 )
 155 {
 156     CGPathMoveToPoint( m_path , NULL , x1 , y1 ) ;
 157 }
 158
 159 void wxMacCGPath::AddLineToPoint( wxCoord x1 , wxCoord y1 )
 160 {
 161     CGPathAddLineToPoint( m_path , NULL , x1 , y1 ) ;
 162 }
 163
 164 void wxMacCGPath::AddQuadCurveToPoint( wxCoord cx1, wxCoord cy1, wxCoord x1, wxCoord y1 )
 165 {
 166     CGPathAddQuadCurveToPoint( m_path , NULL , cx1 , cy1 , x1 , y1 );
 167 }
 168
 169 void wxMacCGPath::AddRectangle( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
 170 {
 171     CGRect cgRect = { { x , y } , { w , h } } ;
 172     CGPathAddRect( m_path , NULL , cgRect ) ;
 173 }
 174
 175 void wxMacCGPath::AddCircle( wxCoord x, wxCoord y , wxCoord r )
 176 {
 177     CGPathAddArc( m_path , NULL , x , y , r , 0.0 , 2 * M_PI , true ) ;
 178 }
 179
 180 // closes the current subpath
 181 void wxMacCGPath::CloseSubpath()
 182 {
 183     CGPathCloseSubpath( m_path ) ;
 184 }
 185
 186 CGPathRef wxMacCGPath::GetPath() const
 187 {
 188     return m_path ;
 189 }
 190
 191 wxMacCGContext::wxMacCGContext( CGrafPtr port )
 192 {
 193     m_qdPort = port ;
 194     m_cgContext = NULL ;
 195 }
 196
 197 wxMacCGContext::wxMacCGContext( CGContextRef cgcontext )
 198 {
 199     m_qdPort = NULL ;
 200     m_cgContext = cgcontext ;
 201     CGContextSaveGState( m_cgContext ) ;
 202     CGContextSaveGState( m_cgContext ) ;
 203 }
 204
 205 wxMacCGContext::wxMacCGContext()
 206 {
 207     m_qdPort = NULL ;
 208     m_cgContext = NULL ;
 209 }
 210
 211 wxMacCGContext::~wxMacCGContext()
 212 {
 213     if ( m_cgContext )
 214     {
 215         CGContextSynchronize( m_cgContext ) ;
 216         CGContextRestoreGState( m_cgContext ) ;
 217         CGContextRestoreGState( m_cgContext ) ;
 218     }
 219
 220     if ( m_qdPort )
 221         CGContextRelease( m_cgContext ) ;
 222 }
 223
 224
 225 void wxMacCGContext::Clip( const wxRegion &region )
 226 {
 227 //    ClipCGContextToRegion ( m_cgContext, &bounds , (RgnHandle) dc->m_macCurrentClipRgn ) ;
 228 }
 229
 230 void wxMacCGContext::StrokePath( const wxGraphicPath *p )
 231 {
 232     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 233     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 234     CGContextStrokePath( m_cgContext ) ;
 235 }
 236
 237 void wxMacCGContext::DrawPath( const wxGraphicPath *p , int fillStyle )
 238 {
 239     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 240     CGPathDrawingMode mode = m_mode ;
 241
 242     if ( fillStyle == wxODDEVEN_RULE )
 243     {
 244         if ( mode == kCGPathFill )
 245             mode = kCGPathEOFill ;
 246         else if ( mode == kCGPathFillStroke )
 247             mode = kCGPathEOFillStroke ;
 248     }
 249
 250     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 251     CGContextDrawPath( m_cgContext , mode ) ;
 252 }
 253
 254 void wxMacCGContext::FillPath( const wxGraphicPath *p , const wxColor &fillColor , int fillStyle )
 255 {
 256     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 257     CGContextSaveGState( m_cgContext ) ;
 258
 259     RGBColor col = MAC_WXCOLORREF( fillColor.GetPixel() ) ;
 260     CGContextSetRGBFillColor( m_cgContext , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
 261     CGPathDrawingMode mode = kCGPathFill ;
 262
 263     if ( fillStyle == wxODDEVEN_RULE )
 264         mode = kCGPathEOFill ;
 265
 266     CGContextBeginPath( m_cgContext ) ;
 267     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 268     CGContextClosePath( m_cgContext ) ;
 269     CGContextDrawPath( m_cgContext , mode ) ;
 270
 271     CGContextRestoreGState( m_cgContext ) ;
 272 }
 273
 274 wxGraphicPath* wxMacCGContext::CreatePath()
 275 {
 276     // make sure that we now have a real cgref, before doing
 277     // anything with paths
 278     CGContextRef cg = GetNativeContext() ;
 279     cg = NULL ;
 280
 281     return new wxMacCGPath() ;
 282 }
 283
 284 // in case we only got a QDPort only create a cgref now
 285
 286 CGContextRef wxMacCGContext::GetNativeContext()
 287 {
 288     if ( m_cgContext == NULL )
 289     {
 290         Rect bounds ;
 291         GetPortBounds( (CGrafPtr) m_qdPort , &bounds ) ;
 292         OSStatus status = CreateCGContextForPort((CGrafPtr) m_qdPort , &m_cgContext) ;
 293         CGContextSaveGState( m_cgContext ) ;
 294
 295         wxASSERT_MSG( status == noErr , wxT("Cannot nest wxDCs on the same window") ) ;
 296
 297         CGContextTranslateCTM( m_cgContext , 0 , bounds.bottom - bounds.top ) ;
 298         CGContextScaleCTM( m_cgContext , 1 , -1 ) ;
 299
 300         CGContextSaveGState( m_cgContext ) ;
 301         SetPen( m_pen ) ;
 302         SetBrush( m_brush ) ;
 303     }
 304
 305     return m_cgContext ;
 306 }
 307
 308 void wxMacCGContext::SetNativeContext( CGContextRef cg )
 309 {
 310     // we allow either setting or clearing but not replacing
 311     wxASSERT( m_cgContext == NULL || cg == NULL ) ;
 312
 313     if ( cg )
 314         CGContextSaveGState( cg ) ;
 315     m_cgContext = cg ;
 316 }
 317
 318 #pragma mark -
 319 #pragma mark wxMacCGPattern, ImagePattern, HatchPattern classes
 320
 321 // CGPattern wrapper class: always allocate on heap, never call destructor
 322
 323 class wxMacCGPattern
 324 {
 325 public :
 326     wxMacCGPattern() {}
 327
 328     // is guaranteed to be called only with a non-Null CGContextRef
 329     virtual void Render( CGContextRef ctxRef ) = 0 ;
 330
 331     operator CGPatternRef() const { return m_patternRef ; }
 332
 333 protected :
 334     virtual ~wxMacCGPattern()
 335     {
 336         // as this is called only when the m_patternRef is been released;
 337         // don't release it again
 338     }
 339
 340     static void _Render( void *info, CGContextRef ctxRef )
 341     {
 342         wxMacCGPattern* self = (wxMacCGPattern*) info ;
 343         if ( self && ctxRef )
 344             self->Render( ctxRef ) ;
 345     }
 346
 347     static void _Dispose( void *info )
 348     {
 349         wxMacCGPattern* self = (wxMacCGPattern*) info ;
 350         delete self ;
 351     }
 352
 353     CGPatternRef m_patternRef ;
 354
 355     static const CGPatternCallbacks ms_Callbacks ;
 356 } ;
 357
 358 const CGPatternCallbacks wxMacCGPattern::ms_Callbacks = { 0, &wxMacCGPattern::_Render, &wxMacCGPattern::_Dispose };
 359
 360 class ImagePattern : public wxMacCGPattern
 361 {
 362 public :
 363     ImagePattern( const wxBitmap* bmp , CGAffineTransform transform )
 364     {
 365         wxASSERT( bmp && bmp->Ok() ) ;
 366
 367         Init( (CGImageRef) bmp->CGImageCreate() , transform ) ;
 368     }
 369
 370     // ImagePattern takes ownership of CGImageRef passed in
 371     ImagePattern( CGImageRef image , CGAffineTransform transform )
 372     {
 373         if ( image )
 374             CFRetain( image ) ;
 375
 376         Init( image , transform ) ;
 377     }
 378
 379     virtual void Render( CGContextRef ctxRef )
 380     {
 381         if (m_image != NULL)
 382             HIViewDrawCGImage( ctxRef, &m_imageBounds, m_image );
 383     }
 384
 385 protected :
 386     void Init( CGImageRef image, CGAffineTransform transform )
 387     {
 388         m_image = image ;
 389         if ( m_image )
 390         {
 391             m_imageBounds = CGRectMake( 0.0, 0.0, (float)CGImageGetWidth( m_image  ), (float)CGImageGetHeight( m_image ) ) ;
 392             m_patternRef = CGPatternCreate( this , m_imageBounds, transform ,
 393                                             m_imageBounds.size.width, m_imageBounds.size.height,
 394                                             kCGPatternTilingNoDistortion, true , &wxMacCGPattern::ms_Callbacks ) ;
 395         }
 396     }
 397
 398     ~ImagePattern()
 399     {
 400         if ( m_image )
 401             CGImageRelease( m_image ) ;
 402     }
 403
 404     CGImageRef  m_image ;
 405     CGRect      m_imageBounds ;
 406 } ;
 407
 408 class HatchPattern : public wxMacCGPattern
 409 {
 410 public :
 411     HatchPattern( int hatchstyle, CGAffineTransform transform )
 412     {
 413         m_hatch = hatchstyle ;
 414         m_imageBounds = CGRectMake( 0.0, 0.0, 8.0 , 8.0 ) ;
 415         m_patternRef = CGPatternCreate( this , m_imageBounds, transform ,
 416                                             m_imageBounds.size.width, m_imageBounds.size.height,
 417                                             kCGPatternTilingNoDistortion, false , &wxMacCGPattern::ms_Callbacks ) ;
 418     }
 419
 420     void StrokeLineSegments( CGContextRef ctxRef , const CGPoint pts[] , size_t count )
 421     {
 422 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
 423         if ( UMAGetSystemVersion() >= 0x1040 )
 424         {
 425             CGContextStrokeLineSegments( ctxRef , pts , count ) ;
 426         }
 427         else
 428 #endif
 429         {
 430             CGContextBeginPath( ctxRef );
 431             for (size_t i = 0; i < count; i += 2)
 432             {
 433                 CGContextMoveToPoint(ctxRef, pts[i].x, pts[i].y);
 434                 CGContextAddLineToPoint(ctxRef, pts[i+1].x, pts[i+1].y);
 435             }
 436             CGContextStrokePath(ctxRef);
 437         }
 438     }
 439
 440     virtual void Render( CGContextRef ctxRef )
 441     {
 442         switch ( m_hatch )
 443         {
 444             case wxBDIAGONAL_HATCH :
 445                 {
 446                     CGPoint pts[] =
 447                     {
 448                     { 8.0 , 0.0 } , { 0.0 , 8.0 }
 449                     };
 450                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 451                 }
 452                 break ;
 453
 454             case wxCROSSDIAG_HATCH :
 455                 {
 456                     CGPoint pts[] =
 457                     {
 458                         { 0.0 , 0.0 } , { 8.0 , 8.0 } ,
 459                         { 8.0 , 0.0 } , { 0.0 , 8.0 }
 460                     };
 461                     StrokeLineSegments( ctxRef , pts , 4 ) ;
 462                 }
 463                 break ;
 464
 465             case wxFDIAGONAL_HATCH :
 466                 {
 467                     CGPoint pts[] =
 468                     {
 469                     { 0.0 , 0.0 } , { 8.0 , 8.0 }
 470                     };
 471                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 472                 }
 473                 break ;
 474
 475             case wxCROSS_HATCH :
 476                 {
 477                     CGPoint pts[] =
 478                     {
 479                     { 0.0 , 4.0 } , { 8.0 , 4.0 } ,
 480                     { 4.0 , 0.0 } , { 4.0 , 8.0 } ,
 481                     };
 482                     StrokeLineSegments( ctxRef , pts , 4 ) ;
 483                 }
 484                 break ;
 485
 486             case wxHORIZONTAL_HATCH :
 487                 {
 488                     CGPoint pts[] =
 489                     {
 490                     { 0.0 , 4.0 } , { 8.0 , 4.0 } ,
 491                     };
 492                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 493                 }
 494                 break ;
 495
 496             case wxVERTICAL_HATCH :
 497                 {
 498                     CGPoint pts[] =
 499                     {
 500                     { 4.0 , 0.0 } , { 4.0 , 8.0 } ,
 501                     };
 502                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 503                 }
 504                 break ;
 505
 506             default:
 507                 break;
 508         }
 509     }
 510
 511 protected :
 512     ~HatchPattern() {}
 513
 514     CGRect      m_imageBounds ;
 515     int         m_hatch ;
 516 } ;
 517
 518 #pragma mark -
 519
 520 void wxMacCGContext::SetPen( const wxPen &pen )
 521 {
 522     m_pen = pen ;
 523     if ( m_cgContext == NULL )
 524         return ;
 525
 526     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
 527     bool stroke = pen.GetStyle() != wxTRANSPARENT ;
 528
 529 #if 0
 530     // we can benchmark performance, should go into a setting later
 531     CGContextSetShouldAntialias( m_cgContext , false ) ;
 532 #endif
 533
 534     if ( fill | stroke )
 535     {
 536         // set up brushes
 537         m_mode = kCGPathFill ; // just a default
 538
 539         if ( stroke )
 540         {
 541             RGBColor col = MAC_WXCOLORREF( pen.GetColour().GetPixel() ) ;
 542             CGContextSetRGBStrokeColor( m_cgContext , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
 543
 544             // TODO * m_dc->m_scaleX
 545             float penWidth = pen.GetWidth();
 546             if (penWidth <= 0.0)
 547                 penWidth = 0.1;
 548             CGContextSetLineWidth( m_cgContext , penWidth ) ;
 549
 550             CGLineCap cap ;
 551             switch ( pen.GetCap() )
 552             {
 553                 case wxCAP_ROUND :
 554                     cap = kCGLineCapRound ;
 555                     break ;
 556
 557                 case wxCAP_PROJECTING :
 558                     cap = kCGLineCapSquare ;
 559                     break ;
 560
 561                 case wxCAP_BUTT :
 562                     cap = kCGLineCapButt ;
 563                     break ;
 564
 565                 default :
 566                     cap = kCGLineCapButt ;
 567                     break ;
 568             }
 569
 570             CGLineJoin join ;
 571             switch ( pen.GetJoin() )
 572             {
 573                 case wxJOIN_BEVEL :
 574                     join = kCGLineJoinBevel ;
 575                     break ;
 576
 577                 case wxJOIN_MITER :
 578                     join = kCGLineJoinMiter ;
 579                     break ;
 580
 581                 case wxJOIN_ROUND :
 582                     join = kCGLineJoinRound ;
 583                     break ;
 584
 585                 default :
 586                     join = kCGLineJoinMiter ;
 587                     break;
 588             }
 589
 590             m_mode = kCGPathStroke ;
 591             int count = 0 ;
 592
 593             const float *lengths = NULL ;
 594             float *userLengths = NULL ;
 595
 596             const float dashUnit = penWidth < 1.0 ? 1.0 : penWidth;
 597
 598             const float dotted[] = { dashUnit  , dashUnit + 2.0 };
 599             const float short_dashed[] = { 9.0 , 6.0 };
 600             const float dashed[] = { 19.0 , 9.0 };
 601             const float dotted_dashed[] = { 9.0 , 6.0 , 3.0 , 3.0 };
 602
 603             switch ( pen.GetStyle() )
 604             {
 605                 case wxSOLID :
 606                     break ;
 607
 608                 case wxDOT :
 609                     lengths = dotted ;
 610                     count = WXSIZEOF(dotted);
 611                     break ;
 612
 613                 case wxLONG_DASH :
 614                     lengths = dashed ;
 615                     count = WXSIZEOF(dashed) ;
 616                     break ;
 617
 618                 case wxSHORT_DASH :
 619                     lengths = short_dashed ;
 620                     count = WXSIZEOF(short_dashed) ;
 621                     break ;
 622
 623                 case wxDOT_DASH :
 624                     lengths = dotted_dashed ;
 625                     count = WXSIZEOF(dotted_dashed);
 626                     break ;
 627
 628                 case wxUSER_DASH :
 629                     wxDash *dashes ;
 630                     count = pen.GetDashes( &dashes ) ;
 631                     if ((dashes != NULL) && (count > 0))
 632                     {
 633                         userLengths = new float[count] ;
 634                         for( int i = 0 ; i < count ; ++i )
 635                         {
 636                             userLengths[i] = dashes[i] * dashUnit ;
 637
 638                             if ( i % 2 == 1 && userLengths[i] < dashUnit + 2.0 )
 639                                 userLengths[i] = dashUnit + 2.0 ;
 640                             else if ( i % 2 == 0 && userLengths[i] < dashUnit )
 641                                 userLengths[i] = dashUnit ;
 642                         }
 643                     }
 644                     lengths = userLengths ;
 645                     break ;
 646
 647                 case wxSTIPPLE :
 648                     {
 649                         float  alphaArray[1] = { 1.0 } ;
 650                         wxBitmap* bmp = pen.GetStipple() ;
 651                         if ( bmp && bmp->Ok() )
 652                         {
 653                             wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( NULL ) ) ;
 654                             CGContextSetStrokeColorSpace( m_cgContext , patternSpace ) ;
 655                             wxMacCFRefHolder<CGPatternRef> pattern( *( new ImagePattern( bmp , CGContextGetCTM( m_cgContext ) ) ) );
 656                             CGContextSetStrokePattern( m_cgContext, pattern , alphaArray ) ;
 657                         }
 658                     }
 659                     break ;
 660
 661                 default :
 662                     {
 663                         wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) ) ;
 664                         CGContextSetStrokeColorSpace( m_cgContext , patternSpace ) ;
 665                         wxMacCFRefHolder<CGPatternRef> pattern( *( new HatchPattern( pen.GetStyle() , CGContextGetCTM( m_cgContext ) ) ) );
 666
 667                         RGBColor col = MAC_WXCOLORREF( pen.GetColour().GetPixel() ) ;
 668                         float  colorArray[4] = { col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 } ;
 669
 670                         CGContextSetStrokePattern( m_cgContext, pattern , colorArray ) ;
 671                     }
 672                     break ;
 673             }
 674
 675             if ((lengths != NULL) && (count > 0))
 676             {
 677                 CGContextSetLineDash( m_cgContext , 0 , lengths , count ) ;
 678                 // force the line cap, otherwise we get artifacts (overlaps) and just solid lines
 679                 cap = kCGLineCapButt ;
 680             }
 681             else
 682             {
 683                CGContextSetLineDash( m_cgContext , 0 , NULL , 0 ) ;
 684             }
 685
 686             CGContextSetLineCap( m_cgContext , cap ) ;
 687             CGContextSetLineJoin( m_cgContext , join ) ;
 688
 689             delete[] userLengths ;
 690         }
 691
 692         if ( fill && stroke )
 693             m_mode = kCGPathFillStroke ;
 694     }
 695 }
 696
 697 void wxMacCGContext::SetBrush( const wxBrush &brush )
 698 {
 699     m_brush = brush ;
 700     if ( m_cgContext == NULL )
 701         return ;
 702
 703     bool fill = brush.GetStyle() != wxTRANSPARENT ;
 704     bool stroke = m_pen.GetStyle() != wxTRANSPARENT ;
 705
 706 #if 0
 707     // we can benchmark performance, should go into a setting later
 708     CGContextSetShouldAntialias( m_cgContext , false ) ;
 709 #endif
 710
 711     if ( fill | stroke )
 712     {
 713         // setup brushes
 714         m_mode = kCGPathFill ; // just a default
 715
 716         if ( fill )
 717         {
 718             if ( brush.GetStyle() == wxSOLID )
 719             {
 720                 RGBColor col = MAC_WXCOLORREF( brush.GetColour().GetPixel() ) ;
 721                 CGContextSetRGBFillColor( m_cgContext , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
 722             }
 723             else if ( brush.IsHatch() )
 724             {
 725                 wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) ) ;
 726                 CGContextSetFillColorSpace( m_cgContext , patternSpace ) ;
 727                 wxMacCFRefHolder<CGPatternRef> pattern( *( new HatchPattern( brush.GetStyle() , CGContextGetCTM( m_cgContext ) ) ) );
 728
 729                 RGBColor col = MAC_WXCOLORREF( brush.GetColour().GetPixel() ) ;
 730                 float  colorArray[4] = { col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 } ;
 731
 732                 CGContextSetFillPattern( m_cgContext, pattern , colorArray ) ;
 733             }
 734             else
 735             {
 736                 // now brush is a bitmap
 737                 float  alphaArray[1] = { 1.0 } ;
 738                 wxBitmap* bmp = brush.GetStipple() ;
 739                 if ( bmp && bmp->Ok() )
 740                 {
 741                     wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( NULL ) ) ;
 742                     CGContextSetFillColorSpace( m_cgContext , patternSpace ) ;
 743                     wxMacCFRefHolder<CGPatternRef> pattern( *( new ImagePattern( bmp , CGContextGetCTM( m_cgContext ) ) ) );
 744                     CGContextSetFillPattern( m_cgContext, pattern , alphaArray ) ;
 745                 }
 746             }
 747
 748             m_mode = kCGPathFill ;
 749         }
 750
 751         if ( fill && stroke )
 752             m_mode = kCGPathFillStroke ;
 753         else if ( stroke )
 754             m_mode = kCGPathStroke ;
 755     }
 756 }
 757
 758 void AddEllipticArcToPath(CGContextRef c, CGPoint center, float a, float b, float fromDegree , float toDegree )
 759 {
 760     CGContextSaveGState(c);
 761     CGContextTranslateCTM(c, center.x, center.y);
 762     CGContextScaleCTM(c, a, b);
 763     CGContextMoveToPoint(c, 1, 0);
 764     CGContextAddArc(c, 0, 0, 1, DegToRad(fromDegree), DegToRad(toDegree), 0);
 765     CGContextClosePath(c);
 766     CGContextRestoreGState(c);
 767 }
 768
 769 void AddRoundedRectToPath(CGContextRef c, CGRect rect, float ovalWidth,
 770       float ovalHeight)
 771 {
 772     float fw, fh;
 773     if (ovalWidth == 0 || ovalHeight == 0)
 774     {
 775         CGContextAddRect(c, rect);
 776         return;
 777     }
 778
 779     CGContextSaveGState(c);
 780     CGContextTranslateCTM(c, CGRectGetMinX(rect), CGRectGetMinY(rect));
 781     CGContextScaleCTM(c, ovalWidth, ovalHeight);
 782     fw = CGRectGetWidth(rect) / ovalWidth;
 783     fh = CGRectGetHeight(rect) / ovalHeight;
 784     CGContextMoveToPoint(c, fw, fh/2);
 785     CGContextAddArcToPoint(c, fw, fh, fw/2, fh, 1);
 786     CGContextAddArcToPoint(c, 0, fh, 0, fh/2, 1);
 787     CGContextAddArcToPoint(c, 0, 0, fw/2, 0, 1);
 788     CGContextAddArcToPoint(c, fw, 0, fw, fh/2, 1);
 789     CGContextClosePath(c);
 790     CGContextRestoreGState(c);
 791 }
 792
 793 #pragma mark -
 794
 795 wxDC::wxDC()
 796 {
 797     m_ok = false ;
 798     m_colour = true;
 799     m_mm_to_pix_x = mm2pt;
 800     m_mm_to_pix_y = mm2pt;
 801
 802     m_externalDeviceOriginX = 0;
 803     m_externalDeviceOriginY = 0;
 804     m_logicalScaleX = 1.0;
 805     m_logicalScaleY = 1.0;
 806     m_userScaleX = 1.0;
 807     m_userScaleY = 1.0;
 808     m_scaleX = 1.0;
 809     m_scaleY = 1.0;
 810     m_needComputeScaleX =
 811     m_needComputeScaleY = false;
 812
 813     m_macPort = 0 ;
 814     m_macLocalOrigin.x =
 815     m_macLocalOrigin.y = 0 ;
 816
 817     m_pen = *wxBLACK_PEN;
 818     m_font = *wxNORMAL_FONT;
 819     m_brush = *wxWHITE_BRUSH;
 820
 821     m_macATSUIStyle = NULL ;
 822     m_graphicContext = NULL ;
 823 }
 824
 825 wxDC::~wxDC()
 826 {
 827     if ( m_macATSUIStyle )
 828     {
 829         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
 830         m_macATSUIStyle = NULL ;
 831     }
 832
 833     delete m_graphicContext ;
 834 }
 835
 836 void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask )
 837 {
 838     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawBitmap - invalid DC") );
 839     wxCHECK_RET( bmp.Ok(), wxT("wxDC(cg)::DoDrawBitmap - invalid bitmap") );
 840
 841     wxCoord xx = XLOG2DEVMAC(x);
 842     wxCoord yy = YLOG2DEVMAC(y);
 843     wxCoord w = bmp.GetWidth();
 844     wxCoord h = bmp.GetHeight();
 845     wxCoord ww = XLOG2DEVREL(w);
 846     wxCoord hh = YLOG2DEVREL(h);
 847
 848     CGContextRef cg = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
 849     CGImageRef image = (CGImageRef)( bmp.CGImageCreate() ) ;
 850     HIRect r = CGRectMake( xx , yy , ww , hh ) ;
 851     HIViewDrawCGImage( cg , &r , image ) ;
 852     CGImageRelease( image ) ;
 853 }
 854
 855 void wxDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )
 856 {
 857     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawIcon - invalid DC") );
 858     wxCHECK_RET( icon.Ok(), wxT("wxDC(cg)::DoDrawIcon - invalid icon") );
 859
 860     wxCoord xx = XLOG2DEVMAC(x);
 861     wxCoord yy = YLOG2DEVMAC(y);
 862     wxCoord w = icon.GetWidth();
 863     wxCoord h = icon.GetHeight();
 864     wxCoord ww = XLOG2DEVREL(w);
 865     wxCoord hh = YLOG2DEVREL(h);
 866
 867     CGContextRef cg = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
 868     CGRect r = CGRectMake( 00 , 00 , ww , hh ) ;
 869     CGContextSaveGState( cg );
 870     CGContextTranslateCTM( cg, xx , yy + hh );
 871     CGContextScaleCTM( cg, 1, -1 );
 872     PlotIconRefInContext( cg , &r , kAlignNone , kTransformNone ,
 873         NULL , kPlotIconRefNormalFlags , MAC_WXHICON( icon.GetHICON() ) ) ;
 874     CGContextRestoreGState( cg ) ;
 875 }
 876
 877 void wxDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
 878 {
 879     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoSetClippingRegion - invalid DC") );
 880
 881     wxCoord xx, yy, ww, hh;
 882     xx = XLOG2DEVMAC(x);
 883     yy = YLOG2DEVMAC(y);
 884     ww = XLOG2DEVREL(width);
 885     hh = YLOG2DEVREL(height);
 886
 887     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
 888     CGRect clipRect = CGRectMake( xx , yy , ww, hh ) ;
 889     CGContextClipToRect( cgContext , clipRect ) ;
 890
 891 //    SetRectRgn( (RgnHandle) m_macCurrentClipRgn , xx , yy , xx + ww , yy + hh ) ;
 892 //    SectRgn( (RgnHandle) m_macCurrentClipRgn , (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
 893
 894     if ( m_clipping )
 895     {
 896         m_clipX1 = wxMax( m_clipX1, xx );
 897         m_clipY1 = wxMax( m_clipY1, yy );
 898         m_clipX2 = wxMin( m_clipX2, (xx + ww) );
 899         m_clipY2 = wxMin( m_clipY2, (yy + hh) );
 900     }
 901     else
 902     {
 903         m_clipping = true;
 904
 905         m_clipX1 = xx;
 906         m_clipY1 = yy;
 907         m_clipX2 = xx + ww;
 908         m_clipY2 = yy + hh;
 909     }
 910
 911     // TODO: as soon as we don't reset the context for each operation anymore
 912     // we have to update the context as well
 913 }
 914
 915 void wxDC::DoSetClippingRegionAsRegion( const wxRegion &region )
 916 {
 917     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoSetClippingRegionAsRegion - invalid DC") );
 918
 919     if (region.Empty())
 920     {
 921         DestroyClippingRegion();
 922         return;
 923     }
 924
 925     wxCoord x, y, w, h;
 926     region.GetBox( x, y, w, h );
 927     wxCoord xx, yy, ww, hh;
 928     xx = XLOG2DEVMAC(x);
 929     yy = YLOG2DEVMAC(y);
 930     ww = XLOG2DEVREL(w);
 931     hh = YLOG2DEVREL(h);
 932
 933     // if we have a scaling that we cannot map onto native regions
 934     // we must use the box
 935     if ( ww != w || hh != h )
 936     {
 937         wxDC::DoSetClippingRegion( x, y, w, h );
 938     }
 939     else
 940     {
 941 #if 0
 942         CopyRgn( (RgnHandle) region.GetWXHRGN() , (RgnHandle) m_macCurrentClipRgn ) ;
 943         if ( xx != x || yy != y )
 944             OffsetRgn( (RgnHandle) m_macCurrentClipRgn , xx - x , yy - y ) ;
 945         SectRgn( (RgnHandle)m_macCurrentClipRgn , (RgnHandle)m_macBoundaryClipRgn , (RgnHandle)m_macCurrentClipRgn ) ;
 946 #endif
 947
 948         if ( m_clipping )
 949         {
 950             m_clipX1 = wxMax( m_clipX1, xx );
 951             m_clipY1 = wxMax( m_clipY1, yy );
 952             m_clipX2 = wxMin( m_clipX2, (xx + ww) );
 953             m_clipY2 = wxMin( m_clipY2, (yy + hh) );
 954         }
 955         else
 956         {
 957             m_clipping = true;
 958
 959             m_clipX1 = xx;
 960             m_clipY1 = yy;
 961             m_clipX2 = xx + ww;
 962             m_clipY2 = yy + hh;
 963         }
 964     }
 965 }
 966
 967 void wxDC::DestroyClippingRegion()
 968 {
 969 //    CopyRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
 970
 971     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
 972     CGContextRestoreGState( cgContext );
 973     CGContextSaveGState( cgContext );
 974
 975     m_graphicContext->SetPen( m_pen ) ;
 976     m_graphicContext->SetBrush( m_brush ) ;
 977
 978     m_clipping = false;
 979 }
 980
 981 void wxDC::DoGetSizeMM( int* width, int* height ) const
 982 {
 983     int w = 0, h = 0;
 984
 985     GetSize( &w, &h );
 986     if (width)
 987         *width = long( double(w) / (m_scaleX * m_mm_to_pix_x) );
 988     if (height)
 989         *height = long( double(h) / (m_scaleY * m_mm_to_pix_y) );
 990 }
 991
 992 void wxDC::SetTextForeground( const wxColour &col )
 993 {
 994     wxCHECK_RET( Ok(), wxT("wxDC(cg)::SetTextForeground - invalid DC") );
 995
 996     if ( col != m_textForegroundColour )
 997     {
 998         m_textForegroundColour = col;
 999         MacInstallFont() ;
1000     }
1001 }
1002
1003 void wxDC::SetTextBackground( const wxColour &col )
1004 {
1005     wxCHECK_RET( Ok(), wxT("wxDC(cg)::SetTextBackground - invalid DC") );
1006
1007     m_textBackgroundColour = col;
1008 }
1009
1010 void wxDC::SetMapMode( int mode )
1011 {
1012     switch (mode)
1013     {
1014     case wxMM_TWIPS:
1015         SetLogicalScale( twips2mm * m_mm_to_pix_x, twips2mm * m_mm_to_pix_y );
1016         break;
1017
1018     case wxMM_POINTS:
1019         SetLogicalScale( pt2mm * m_mm_to_pix_x, pt2mm * m_mm_to_pix_y );
1020         break;
1021
1022     case wxMM_METRIC:
1023         SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y );
1024         break;
1025
1026     case wxMM_LOMETRIC:
1027         SetLogicalScale( m_mm_to_pix_x / 10.0, m_mm_to_pix_y / 10.0 );
1028         break;
1029
1030     case wxMM_TEXT:
1031     default:
1032         SetLogicalScale( 1.0, 1.0 );
1033         break;
1034     }
1035
1036     if (mode != wxMM_TEXT)
1037     {
1038         m_needComputeScaleX =
1039         m_needComputeScaleY = true;
1040     }
1041 }
1042
1043 void wxDC::SetUserScale( double x, double y )
1044 {
1045     // allow negative ? -> no
1046     m_userScaleX = x;
1047     m_userScaleY = y;
1048     ComputeScaleAndOrigin();
1049 }
1050
1051 void wxDC::SetLogicalScale( double x, double y )
1052 {
1053     // allow negative ?
1054     m_logicalScaleX = x;
1055     m_logicalScaleY = y;
1056     ComputeScaleAndOrigin();
1057 }
1058
1059 void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y )
1060 {
1061     m_logicalOriginX = x * m_signX;   // is this still correct ?
1062     m_logicalOriginY = y * m_signY;
1063     ComputeScaleAndOrigin();
1064 }
1065
1066 void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y )
1067 {
1068     m_externalDeviceOriginX = x;
1069     m_externalDeviceOriginY = y;
1070     ComputeScaleAndOrigin();
1071 }
1072
1073 void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
1074 {
1075     m_signX = (xLeftRight ?  1 : -1);
1076     m_signY = (yBottomUp ? -1 :  1);
1077     ComputeScaleAndOrigin();
1078 }
1079
1080 wxSize wxDC::GetPPI() const
1081 {
1082     return wxSize(72, 72);
1083 }
1084
1085 int wxDC::GetDepth() const
1086 {
1087     return 32 ;
1088 }
1089
1090 void wxDC::ComputeScaleAndOrigin()
1091 {
1092     // CMB: copy scale to see if it changes
1093     double origScaleX = m_scaleX;
1094     double origScaleY = m_scaleY;
1095     m_scaleX = m_logicalScaleX * m_userScaleX;
1096     m_scaleY = m_logicalScaleY * m_userScaleY;
1097     m_deviceOriginX = m_externalDeviceOriginX;
1098     m_deviceOriginY = m_externalDeviceOriginY;
1099
1100     // CMB: if scale has changed call SetPen to recalulate the line width
1101     if (m_scaleX != origScaleX || m_scaleY != origScaleY)
1102     {
1103         // this is a bit artificial, but we need to force wxDC to think
1104         // the pen has changed
1105         wxPen pen( GetPen() );
1106
1107         m_pen = wxNullPen;
1108         SetPen(pen);
1109     }
1110 }
1111
1112 void wxDC::SetPalette( const wxPalette& palette )
1113 {
1114 }
1115
1116 void wxDC::SetBackgroundMode( int mode )
1117 {
1118     m_backgroundMode = mode ;
1119 }
1120
1121 void wxDC::SetFont( const wxFont &font )
1122 {
1123     m_font = font;
1124     MacInstallFont() ;
1125 }
1126
1127 void wxDC::SetPen( const wxPen &pen )
1128 {
1129     if ( m_pen == pen )
1130         return ;
1131
1132     m_pen = pen;
1133     if ( m_graphicContext )
1134     {
1135         if ( m_pen.GetStyle() == wxSOLID || m_pen.GetStyle() == wxTRANSPARENT )
1136         {
1137             m_graphicContext->SetPen( m_pen ) ;
1138         }
1139         else
1140         {
1141             // we have to compensate for moved device origins etc. otherwise patterned pens are standing still
1142             // eg when using a wxScrollWindow and scrolling around
1143             CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1144             int origX = XLOG2DEVMAC(0) ;
1145             int origY = YLOG2DEVMAC(0) ;
1146             CGContextTranslateCTM( cgContext, origX, origY );
1147             m_graphicContext->SetPen( m_pen ) ;
1148             CGContextTranslateCTM( cgContext, -origX, -origY );
1149         }
1150     }
1151 }
1152
1153 void wxDC::SetBrush( const wxBrush &brush )
1154 {
1155     if (m_brush == brush)
1156         return;
1157
1158     m_brush = brush;
1159     if ( m_graphicContext )
1160     {
1161         if ( brush.GetStyle() == wxSOLID || brush.GetStyle() == wxTRANSPARENT )
1162         {
1163             m_graphicContext->SetBrush( m_brush ) ;
1164         }
1165         else
1166         {
1167             // we have to compensate for moved device origins etc. otherwise patterned brushes are standing still
1168             // eg when using a wxScrollWindow and scrolling around
1169             CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1170             int origX = XLOG2DEVMAC(0) ;
1171             int origY = YLOG2DEVMAC(0) ;
1172             CGContextTranslateCTM( cgContext, origX, origY );
1173             m_graphicContext->SetBrush( m_brush ) ;
1174             CGContextTranslateCTM( cgContext, -origX, -origY );
1175         }
1176     }
1177 }
1178
1179 void wxDC::SetBackground( const wxBrush &brush )
1180 {
1181     if (m_backgroundBrush == brush)
1182         return;
1183
1184     m_backgroundBrush = brush;
1185     if (!m_backgroundBrush.Ok())
1186         return;
1187 }
1188
1189 void wxDC::SetLogicalFunction( int function )
1190 {
1191     if (m_logicalFunction == function)
1192         return;
1193
1194     m_logicalFunction = function ;
1195 }
1196
1197 extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
1198                           const wxColour & col, int style);
1199
1200 bool wxDC::DoFloodFill(wxCoord x, wxCoord y,
1201                        const wxColour& col, int style)
1202 {
1203     return wxDoFloodFill(this, x, y, col, style);
1204 }
1205
1206 bool wxDC::DoGetPixel( wxCoord x, wxCoord y, wxColour *col ) const
1207 {
1208     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoGetPixel - invalid DC") );
1209
1210     wxMacPortSaver helper((CGrafPtr)m_macPort) ;
1211     RGBColor colour;
1212
1213     // NB: GetCPixel is a deprecated QD call, and a slow one at that
1214     GetCPixel(
1215         XLOG2DEVMAC(x) + m_macLocalOriginInPort.x - m_macLocalOrigin.x,
1216         YLOG2DEVMAC(y) + m_macLocalOriginInPort.y - m_macLocalOrigin.y, &colour );
1217
1218     // convert from Mac colour to wx
1219     col->Set( colour.red >> 8, colour.green >> 8, colour.blue >> 8 );
1220
1221     return true ;
1222 }
1223
1224 void wxDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
1225 {
1226     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawLine - invalid DC") );
1227
1228     if ( m_logicalFunction != wxCOPY )
1229         return ;
1230
1231     wxCoord xx1 = XLOG2DEVMAC(x1) ;
1232     wxCoord yy1 = YLOG2DEVMAC(y1) ;
1233     wxCoord xx2 = XLOG2DEVMAC(x2) ;
1234     wxCoord yy2 = YLOG2DEVMAC(y2) ;
1235
1236     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1237     path->MoveToPoint( xx1, yy1 ) ;
1238     path->AddLineToPoint( xx2 , yy2 ) ;
1239     path->CloseSubpath() ;
1240     m_graphicContext->StrokePath( path ) ;
1241     delete path ;
1242
1243     CalcBoundingBox(x1, y1);
1244     CalcBoundingBox(x2, y2);
1245 }
1246
1247 void wxDC::DoCrossHair( wxCoord x, wxCoord y )
1248 {
1249     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoCrossHair - invalid DC") );
1250
1251     if ( m_logicalFunction != wxCOPY )
1252         return ;
1253
1254     int w = 0, h = 0;
1255
1256     GetSize( &w, &h );
1257     wxCoord xx = XLOG2DEVMAC(x);
1258     wxCoord yy = YLOG2DEVMAC(y);
1259
1260     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1261     path->MoveToPoint( XLOG2DEVMAC(0), yy ) ;
1262     path->AddLineToPoint( XLOG2DEVMAC(w), yy ) ;
1263     path->CloseSubpath() ;
1264     path->MoveToPoint( xx, YLOG2DEVMAC(0) ) ;
1265     path->AddLineToPoint( xx, YLOG2DEVMAC(h) ) ;
1266     path->CloseSubpath() ;
1267     m_graphicContext->StrokePath( path ) ;
1268     delete path ;
1269
1270     CalcBoundingBox(x, y);
1271     CalcBoundingBox(x + w, y + h);
1272 }
1273
1274 void wxDC::DoDrawArc( wxCoord x1, wxCoord y1,
1275                       wxCoord x2, wxCoord y2,
1276                       wxCoord xc, wxCoord yc )
1277 {
1278     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawArc - invalid DC") );
1279
1280     if ( m_logicalFunction != wxCOPY )
1281         return ;
1282
1283     wxCoord xx1 = XLOG2DEVMAC(x1);
1284     wxCoord yy1 = YLOG2DEVMAC(y1);
1285     wxCoord xx2 = XLOG2DEVMAC(x2);
1286     wxCoord yy2 = YLOG2DEVMAC(y2);
1287     wxCoord xxc = XLOG2DEVMAC(xc);
1288     wxCoord yyc = YLOG2DEVMAC(yc);
1289
1290     double dx = xx1 - xxc;
1291     double dy = yy1 - yyc;
1292     double radius = sqrt((double)(dx * dx + dy * dy));
1293     wxCoord rad = (wxCoord)radius;
1294     double sa, ea;
1295     if (xx1 == xx2 && yy1 == yy2)
1296     {
1297         sa = 0.0;
1298         ea = 360.0;
1299     }
1300     else if (radius == 0.0)
1301     {
1302         sa = ea = 0.0;
1303     }
1304     else
1305     {
1306         sa = (xx1 - xxc == 0) ?
1307             (yy1 - yyc < 0) ? 90.0 : -90.0 :
1308         -atan2(double(yy1 - yyc), double(xx1 - xxc)) * RAD2DEG;
1309         ea = (xx2 - xxc == 0) ?
1310             (yy2 - yyc < 0) ? 90.0 : -90.0 :
1311         -atan2(double(yy2 - yyc), double(xx2 - xxc)) * RAD2DEG;
1312     }
1313
1314     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
1315     wxMacCGContext* mctx = ((wxMacCGContext*) m_graphicContext) ;
1316     CGContextRef ctx = mctx->GetNativeContext() ;
1317     CGContextSaveGState( ctx ) ;
1318     CGContextTranslateCTM( ctx, xxc , yyc );
1319     CGContextScaleCTM( ctx , 1 , -1 ) ;
1320     if ( fill )
1321         CGContextMoveToPoint( ctx , 0 , 0 ) ;
1322     CGContextAddArc( ctx, 0, 0 , rad , DegToRad(sa), DegToRad(ea), 0);
1323     if ( fill )
1324         CGContextAddLineToPoint( ctx , 0 , 0 ) ;
1325     CGContextRestoreGState( ctx ) ;
1326     CGContextDrawPath( ctx , mctx->GetDrawingMode() ) ;
1327 }
1328
1329 void wxDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord w, wxCoord h,
1330                               double sa, double ea )
1331 {
1332     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawEllipticArc - invalid DC") );
1333
1334     if ( m_logicalFunction != wxCOPY )
1335         return ;
1336
1337     wxCoord xx = XLOG2DEVMAC(x);
1338     wxCoord yy = YLOG2DEVMAC(y);
1339     wxCoord ww = m_signX * XLOG2DEVREL(w);
1340     wxCoord hh = m_signY * YLOG2DEVREL(h);
1341
1342     // handle -ve width and/or height
1343     if (ww < 0)
1344     {
1345         ww = -ww;
1346         xx = xx - ww;
1347     }
1348     if (hh < 0)
1349     {
1350         hh = -hh;
1351         yy = yy - hh;
1352     }
1353
1354     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
1355
1356     wxMacCGContext* mctx = ((wxMacCGContext*) m_graphicContext) ;
1357     CGContextRef ctx = mctx->GetNativeContext() ;
1358
1359     CGContextSaveGState( ctx ) ;
1360     CGContextTranslateCTM( ctx, xx + ww / 2, yy + hh / 2);
1361     CGContextScaleCTM( ctx , 1 * ww / 2 , -1 * hh / 2 ) ;
1362     if ( fill )
1363         CGContextMoveToPoint( ctx , 0 , 0 ) ;
1364     CGContextAddArc( ctx, 0, 0, 1, DegToRad(sa), DegToRad(ea), 0);
1365     if ( fill )
1366         CGContextAddLineToPoint( ctx , 0 , 0 ) ;
1367     CGContextRestoreGState( ctx ) ;
1368     CGContextDrawPath( ctx , mctx->GetDrawingMode() ) ;
1369 }
1370
1371 void wxDC::DoDrawPoint( wxCoord x, wxCoord y )
1372 {
1373     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawPoint - invalid DC") );
1374
1375     DoDrawLine( x , y , x + 1 , y + 1 ) ;
1376 }
1377
1378 void wxDC::DoDrawLines(int n, wxPoint points[],
1379                         wxCoord xoffset, wxCoord yoffset)
1380 {
1381     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawLines - invalid DC") );
1382
1383     if ( m_logicalFunction != wxCOPY )
1384         return ;
1385
1386     wxCoord x1, x2 , y1 , y2 ;
1387     x1 = XLOG2DEVMAC(points[0].x + xoffset);
1388     y1 = YLOG2DEVMAC(points[0].y + yoffset);
1389     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1390     path->MoveToPoint( x1 , y1 ) ;
1391     for (int i = 1; i < n; i++)
1392     {
1393         x2 = XLOG2DEVMAC(points[i].x + xoffset);
1394         y2 = YLOG2DEVMAC(points[i].y + yoffset);
1395
1396         path->AddLineToPoint( x2 , y2 ) ;
1397     }
1398
1399     m_graphicContext->StrokePath( path ) ;
1400     delete path ;
1401 }
1402
1403 #if wxUSE_SPLINES
1404 void wxDC::DoDrawSpline(wxList *points)
1405 {
1406     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawSpline - invalid DC") );
1407
1408     if ( m_logicalFunction != wxCOPY )
1409         return ;
1410
1411     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1412
1413     wxList::compatibility_iterator node = points->GetFirst();
1414     if (node == wxList::compatibility_iterator())
1415         // empty list
1416         return;
1417
1418     wxPoint *p = (wxPoint *)node->GetData();
1419
1420     wxCoord x1 = p->x;
1421     wxCoord y1 = p->y;
1422
1423     node = node->GetNext();
1424     p = (wxPoint *)node->GetData();
1425
1426     wxCoord x2 = p->x;
1427     wxCoord y2 = p->y;
1428     wxCoord cx1 = ( x1 + x2 ) / 2;
1429     wxCoord cy1 = ( y1 + y2 ) / 2;
1430
1431     path->MoveToPoint( XLOG2DEVMAC( x1 ) , XLOG2DEVMAC( y1 ) ) ;
1432     path->AddLineToPoint( XLOG2DEVMAC( cx1 ) , XLOG2DEVMAC( cy1 ) ) ;
1433
1434 #if !wxUSE_STL
1435     while ((node = node->GetNext()) != NULL)
1436 #else
1437     while ((node = node->GetNext()))
1438 #endif // !wxUSE_STL
1439     {
1440         p = (wxPoint *)node->GetData();
1441         x1 = x2;
1442         y1 = y2;
1443         x2 = p->x;
1444         y2 = p->y;
1445         wxCoord cx4 = (x1 + x2) / 2;
1446         wxCoord cy4 = (y1 + y2) / 2;
1447
1448         path->AddQuadCurveToPoint( XLOG2DEVMAC( x1 ) , XLOG2DEVMAC( y1 ) ,
1449                                    XLOG2DEVMAC( cx4 ) , XLOG2DEVMAC( cy4 ) ) ;
1450
1451         cx1 = cx4;
1452         cy1 = cy4;
1453     }
1454
1455     path->AddLineToPoint( XLOG2DEVMAC( x2 ) , XLOG2DEVMAC( y2 ) ) ;
1456
1457     m_graphicContext->StrokePath( path ) ;
1458     delete path ;
1459 }
1460 #endif
1461
1462 void wxDC::DoDrawPolygon( int n, wxPoint points[],
1463                           wxCoord xoffset, wxCoord yoffset,
1464                           int fillStyle )
1465 {
1466     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawPolygon - invalid DC") );
1467
1468     if ( n <= 0 || (m_brush.GetStyle() == wxTRANSPARENT && m_pen.GetStyle() == wxTRANSPARENT ) )
1469         return ;
1470     if ( m_logicalFunction != wxCOPY )
1471         return ;
1472
1473     wxCoord x1, x2 , y1 , y2 ;
1474     x2 = x1 = XLOG2DEVMAC(points[0].x + xoffset);
1475     y2 = y1 = YLOG2DEVMAC(points[0].y + yoffset);
1476
1477     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1478     path->MoveToPoint( x1 , y1 ) ;
1479     for (int i = 1; i < n; i++)
1480     {
1481         x2 = XLOG2DEVMAC(points[i].x + xoffset);
1482         y2 = YLOG2DEVMAC(points[i].y + yoffset);
1483
1484         path->AddLineToPoint( x2 , y2 ) ;
1485     }
1486
1487     if ( x1 != x2 || y1 != y2 )
1488         path->AddLineToPoint( x1, y1 ) ;
1489
1490     path->CloseSubpath() ;
1491     m_graphicContext->DrawPath( path , fillStyle ) ;
1492
1493     delete path ;
1494 }
1495
1496 void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1497 {
1498     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRectangle - invalid DC") );
1499
1500     if ( m_logicalFunction != wxCOPY )
1501         return ;
1502
1503     wxCoord xx = XLOG2DEVMAC(x);
1504     wxCoord yy = YLOG2DEVMAC(y);
1505     wxCoord ww = m_signX * XLOG2DEVREL(width);
1506     wxCoord hh = m_signY * YLOG2DEVREL(height);
1507
1508     // CMB: draw nothing if transformed w or h is 0
1509     if (ww == 0 || hh == 0)
1510         return;
1511
1512     // CMB: handle -ve width and/or height
1513     if (ww < 0)
1514     {
1515         ww = -ww;
1516         xx = xx - ww;
1517     }
1518     if (hh < 0)
1519     {
1520         hh = -hh;
1521         yy = yy - hh;
1522     }
1523
1524     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1525     path->AddRectangle( xx , yy , ww , hh ) ;
1526     m_graphicContext->DrawPath( path ) ;
1527     delete path ;
1528 }
1529
1530 void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y,
1531                                    wxCoord width, wxCoord height,
1532                                    double radius)
1533 {
1534     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRoundedRectangle - invalid DC") );
1535
1536     if ( m_logicalFunction != wxCOPY )
1537         return ;
1538
1539     if (radius < 0.0)
1540         radius = - radius * ((width < height) ? width : height);
1541     wxCoord xx = XLOG2DEVMAC(x);
1542     wxCoord yy = YLOG2DEVMAC(y);
1543     wxCoord ww = m_signX * XLOG2DEVREL(width);
1544     wxCoord hh = m_signY * YLOG2DEVREL(height);
1545
1546     // CMB: draw nothing if transformed w or h is 0
1547     if (ww == 0 || hh == 0)
1548         return;
1549
1550     // CMB: handle -ve width and/or height
1551     if (ww < 0)
1552     {
1553         ww = -ww;
1554         xx = xx - ww;
1555     }
1556     if (hh < 0)
1557     {
1558         hh = -hh;
1559         yy = yy - hh;
1560     }
1561
1562     wxMacCGContext* mctx = ((wxMacCGContext*) m_graphicContext) ;
1563     CGContextRef ctx = mctx->GetNativeContext() ;
1564     AddRoundedRectToPath( ctx  , CGRectMake( xx , yy , ww , hh ) , 16 ,16  ) ;
1565     CGContextDrawPath( ctx , mctx->GetDrawingMode() ) ;
1566 }
1567
1568 void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1569 {
1570     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawEllipse - invalid DC") );
1571
1572     if ( m_logicalFunction != wxCOPY )
1573         return ;
1574
1575     wxCoord xx = XLOG2DEVMAC(x);
1576     wxCoord yy = YLOG2DEVMAC(y);
1577     wxCoord ww = m_signX * XLOG2DEVREL(width);
1578     wxCoord hh = m_signY * YLOG2DEVREL(height);
1579     // CMB: draw nothing if transformed w or h is 0
1580     if (ww == 0 || hh == 0)
1581         return;
1582
1583     // CMB: handle -ve width and/or height
1584     if (ww < 0)
1585     {
1586         ww = -ww;
1587         xx = xx - ww;
1588     }
1589     if (hh < 0)
1590     {
1591         hh = -hh;
1592         yy = yy - hh;
1593     }
1594
1595     wxMacCGContext* mctx = ((wxMacCGContext*) m_graphicContext) ;
1596     CGContextRef ctx = mctx->GetNativeContext() ;
1597     CGContextSaveGState( ctx ) ;
1598     CGContextTranslateCTM( ctx, xx + ww / 2, yy + hh / 2);
1599     CGContextScaleCTM( ctx , ww / 2 , hh / 2 ) ;
1600     CGContextAddArc( ctx, 0, 0, 1,  0 , 2 * M_PI , 0);
1601     CGContextRestoreGState( ctx ) ;
1602     CGContextDrawPath( ctx , mctx->GetDrawingMode() ) ;
1603 }
1604
1605 bool wxDC::CanDrawBitmap(void) const
1606 {
1607     return true ;
1608 }
1609
1610 bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
1611                    wxDC *source, wxCoord xsrc, wxCoord ysrc, int logical_func , bool useMask,
1612                    wxCoord xsrcMask,  wxCoord ysrcMask )
1613 {
1614     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoBlit - invalid DC") );
1615     wxCHECK_MSG( source->Ok(), false, wxT("wxDC(cg)::DoBlit - invalid source DC") );
1616
1617     if ( logical_func == wxNO_OP )
1618         return true ;
1619
1620     if (xsrcMask == -1 && ysrcMask == -1)
1621     {
1622         xsrcMask = xsrc;
1623         ysrcMask = ysrc;
1624     }
1625
1626     wxCoord yysrc = source->YLOG2DEVMAC(ysrc) ;
1627     wxCoord xxsrc = source->XLOG2DEVMAC(xsrc)  ;
1628     wxCoord wwsrc = source->XLOG2DEVREL(width ) ;
1629     wxCoord hhsrc = source->YLOG2DEVREL(height) ;
1630
1631     wxCoord yydest = YLOG2DEVMAC(ydest) ;
1632     wxCoord xxdest = XLOG2DEVMAC(xdest) ;
1633     wxCoord wwdest = XLOG2DEVREL(width ) ;
1634     wxCoord hhdest = YLOG2DEVREL(height) ;
1635
1636     wxMemoryDC* memdc = dynamic_cast<wxMemoryDC*>(source) ;
1637     if ( memdc && logical_func == wxCOPY )
1638     {
1639         wxBitmap blit = memdc->GetSelectedObject() ;
1640
1641         wxASSERT_MSG( blit.Ok() , wxT("Invalid bitmap for blitting") ) ;
1642
1643         wxCoord bmpwidth = blit.GetWidth();
1644         wxCoord bmpheight = blit.GetHeight();
1645
1646         if ( xxsrc != 0 || yysrc != 0 || bmpwidth != wwsrc || bmpheight != hhsrc )
1647         {
1648             wwsrc = wxMin( wwsrc , bmpwidth - xxsrc ) ;
1649             hhsrc = wxMin( hhsrc , bmpheight - yysrc ) ;
1650             if ( wwsrc > 0 && hhsrc > 0 )
1651             {
1652                 if ( xxsrc >= 0 && yysrc >= 0 )
1653                 {
1654                     wxRect subrect( xxsrc, yysrc, wwsrc , hhsrc ) ;
1655                     blit = blit.GetSubBitmap( subrect ) ;
1656                 }
1657                 else
1658                 {
1659                     // in this case we'd probably have to adjust the different coordinates, but
1660                     // we have to find out proper contract first
1661                     blit = wxNullBitmap ;
1662                 }
1663             }
1664             else
1665             {
1666                 blit = wxNullBitmap ;
1667             }
1668         }
1669
1670         if ( blit.Ok() )
1671         {
1672             CGContextRef cg = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1673             CGImageRef image = (CGImageRef)( blit.CGImageCreate() ) ;
1674             HIRect r = CGRectMake( xxdest , yydest , wwdest , hhdest ) ;
1675             HIViewDrawCGImage( cg , &r , image ) ;
1676             CGImageRelease( image ) ;
1677         }
1678     }
1679     else
1680     {
1681 #if 0
1682         CGContextRef cg = (wxMacCGContext*)(source->GetGraphicContext())->GetNativeContext() ;
1683         void *data = CGBitmapContextGetData( cg ) ;
1684 #endif
1685
1686         return false ; // wxFAIL_MSG( wxT("Blitting is only supported from bitmap contexts") ) ;
1687     }
1688
1689     return true;
1690 }
1691
1692 void wxDC::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y,
1693                               double angle)
1694 {
1695     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRotatedText - invalid DC") );
1696     wxCHECK_RET( m_macATSUIStyle != NULL, wxT("wxDC(cg)::DoDrawRotatedText - no valid font set") );
1697
1698     if ( str.Length() == 0 )
1699         return ;
1700     if ( m_logicalFunction != wxCOPY )
1701         return ;
1702
1703     OSStatus status = noErr ;
1704     ATSUTextLayout atsuLayout ;
1705     UniCharCount chars = str.Length() ;
1706     UniChar* ubuf = NULL ;
1707
1708 #if SIZEOF_WCHAR_T == 4
1709     wxMBConvUTF16 converter ;
1710 #if wxUSE_UNICODE
1711     size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 ) ;
1712     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1713     converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 ) ;
1714 #else
1715     const wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1716     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
1717     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1718     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
1719 #endif
1720     chars = unicharlen / 2 ;
1721 #else
1722 #if wxUSE_UNICODE
1723     ubuf = (UniChar*) str.wc_str() ;
1724 #else
1725     wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1726     chars = wxWcslen( wchar.data() ) ;
1727     ubuf = (UniChar*) wchar.data() ;
1728 #endif
1729 #endif
1730
1731     int drawX = XLOG2DEVMAC(x) ;
1732     int drawY = YLOG2DEVMAC(y) ;
1733
1734     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1735         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
1736
1737     wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
1738
1739     status = ::ATSUSetTransientFontMatching( atsuLayout , true ) ;
1740     wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
1741
1742     int iAngle = int( angle );
1743     if ( abs(iAngle) > 0 )
1744     {
1745         Fixed atsuAngle = IntToFixed( iAngle ) ;
1746         ATSUAttributeTag atsuTags[] =
1747         {
1748             kATSULineRotationTag ,
1749         } ;
1750         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1751         {
1752             sizeof( Fixed ) ,
1753         } ;
1754         ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1755         {
1756             &atsuAngle ,
1757         } ;
1758         status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
1759             atsuTags, atsuSizes, atsuValues ) ;
1760     }
1761
1762     {
1763         CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1764         ATSUAttributeTag atsuTags[] =
1765         {
1766             kATSUCGContextTag ,
1767         } ;
1768         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1769         {
1770             sizeof( CGContextRef ) ,
1771         } ;
1772         ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1773         {
1774             &cgContext ,
1775         } ;
1776         status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
1777             atsuTags, atsuSizes, atsuValues ) ;
1778     }
1779
1780     ATSUTextMeasurement textBefore, textAfter ;
1781     ATSUTextMeasurement ascent, descent ;
1782
1783     status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1784         &textBefore , &textAfter, &ascent , &descent );
1785
1786     wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
1787
1788     Rect rect ;
1789
1790     if ( m_backgroundMode == wxSOLID )
1791     {
1792         wxGraphicPath* path = m_graphicContext->CreatePath() ;
1793         path->MoveToPoint(
1794             drawX ,
1795             drawY ) ;
1796         path->AddLineToPoint(
1797             (int) (drawX + sin(angle / RAD2DEG) * FixedToInt(ascent + descent)) ,
1798             (int) (drawY + cos(angle / RAD2DEG) * FixedToInt(ascent + descent)) ) ;
1799         path->AddLineToPoint(
1800             (int) (drawX + sin(angle / RAD2DEG) * FixedToInt(ascent + descent ) + cos(angle / RAD2DEG) * FixedToInt(textAfter)) ,
1801             (int) (drawY + cos(angle / RAD2DEG) * FixedToInt(ascent + descent) - sin(angle / RAD2DEG) * FixedToInt(textAfter)) ) ;
1802         path->AddLineToPoint(
1803             (int) (drawX + cos(angle / RAD2DEG) * FixedToInt(textAfter)) ,
1804             (int) (drawY - sin(angle / RAD2DEG) * FixedToInt(textAfter)) ) ;
1805
1806         m_graphicContext->FillPath( path , m_textBackgroundColour ) ;
1807         delete path ;
1808     }
1809
1810     drawX += (int)(sin(angle / RAD2DEG) * FixedToInt(ascent));
1811     drawY += (int)(cos(angle / RAD2DEG) * FixedToInt(ascent));
1812
1813     status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1814         IntToFixed(drawX) , IntToFixed(drawY) , &rect );
1815     wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
1816
1817     CGContextSaveGState(((wxMacCGContext*)(m_graphicContext))->GetNativeContext());
1818     CGContextTranslateCTM(((wxMacCGContext*)(m_graphicContext))->GetNativeContext(), drawX, drawY);
1819     CGContextScaleCTM(((wxMacCGContext*)(m_graphicContext))->GetNativeContext(), 1, -1);
1820     status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1821         IntToFixed(0) , IntToFixed(0) );
1822
1823     wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
1824
1825     CGContextRestoreGState( ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ) ;
1826
1827     CalcBoundingBox(XDEV2LOG(rect.left), YDEV2LOG(rect.top) );
1828     CalcBoundingBox(XDEV2LOG(rect.right), YDEV2LOG(rect.bottom) );
1829
1830     ::ATSUDisposeTextLayout(atsuLayout);
1831
1832 #if SIZEOF_WCHAR_T == 4
1833     free( ubuf ) ;
1834 #endif
1835 }
1836
1837 void wxDC::DoDrawText(const wxString& strtext, wxCoord x, wxCoord y)
1838 {
1839     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawText - invalid DC") );
1840
1841     DoDrawRotatedText( strtext , x , y , 0.0 ) ;
1842 }
1843
1844 bool wxDC::CanGetTextExtent() const
1845 {
1846     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::CanGetTextExtent - invalid DC") );
1847
1848     return true ;
1849 }
1850
1851 void wxDC::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *height,
1852                             wxCoord *descent, wxCoord *externalLeading ,
1853                             wxFont *theFont ) const
1854 {
1855     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoGetTextExtent - invalid DC") );
1856
1857     wxFont formerFont = m_font ;
1858     if ( theFont )
1859     {
1860         // work around the const-ness
1861         *((wxFont*)(&m_font)) = *theFont ;
1862         MacInstallFont() ;
1863     }
1864
1865     if ( str.Length() == 0 )
1866         return ;
1867
1868     wxCHECK_RET( m_macATSUIStyle != NULL, wxT("wxDC(cg)::DoGetTextExtent - no valid font set") ) ;
1869
1870     OSStatus status = noErr ;
1871     ATSUTextLayout atsuLayout ;
1872     UniCharCount chars = str.Length() ;
1873     UniChar* ubuf = NULL ;
1874
1875 #if SIZEOF_WCHAR_T == 4
1876     wxMBConvUTF16 converter ;
1877 #if wxUSE_UNICODE
1878     size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 ) ;
1879     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1880     converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 ) ;
1881 #else
1882     const wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1883     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
1884     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1885     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
1886 #endif
1887     chars = unicharlen / 2 ;
1888 #else
1889 #if wxUSE_UNICODE
1890     ubuf = (UniChar*) str.wc_str() ;
1891 #else
1892     wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1893     chars = wxWcslen( wchar.data() ) ;
1894     ubuf = (UniChar*) wchar.data() ;
1895 #endif
1896 #endif
1897
1898     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1899         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
1900
1901     wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
1902
1903     ATSUTextMeasurement textBefore, textAfter ;
1904     ATSUTextMeasurement textAscent, textDescent ;
1905
1906     status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1907         &textBefore , &textAfter, &textAscent , &textDescent );
1908
1909     if ( height )
1910         *height = YDEV2LOGREL( FixedToInt(textAscent + textDescent) ) ;
1911     if ( descent )
1912         *descent =YDEV2LOGREL( FixedToInt(textDescent) );
1913     if ( externalLeading )
1914         *externalLeading = 0 ;
1915     if ( width )
1916         *width = XDEV2LOGREL( FixedToInt(textAfter - textBefore) ) ;
1917
1918     ::ATSUDisposeTextLayout(atsuLayout);
1919
1920 #if SIZEOF_WCHAR_T == 4
1921     free( ubuf ) ;
1922 #endif
1923
1924     if ( theFont )
1925     {
1926         // work around the constness
1927         *((wxFont*)(&m_font)) = formerFont ;
1928         MacInstallFont() ;
1929     }
1930 }
1931
1932 bool wxDC::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
1933 {
1934     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoGetPartialTextExtents - invalid DC") );
1935
1936     widths.Empty();
1937     widths.Add(0, text.Length());
1938
1939     if (text.Length() == 0)
1940         return false;
1941
1942     ATSUTextLayout atsuLayout ;
1943     UniCharCount chars = text.Length() ;
1944     UniChar* ubuf = NULL ;
1945
1946 #if SIZEOF_WCHAR_T == 4
1947     wxMBConvUTF16 converter ;
1948 #if wxUSE_UNICODE
1949     size_t unicharlen = converter.WC2MB( NULL , text.wc_str() , 0 ) ;
1950     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1951     converter.WC2MB( (char*) ubuf , text.wc_str(), unicharlen + 2 ) ;
1952 #else
1953     const wxWCharBuffer wchar = text.wc_str( wxConvLocal ) ;
1954     size_t unicharlen = converter.WC2MB( NULL , wchar.data()  , 0 ) ;
1955     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1956     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
1957 #endif
1958     chars = unicharlen / 2 ;
1959 #else
1960 #if wxUSE_UNICODE
1961     ubuf = (UniChar*) text.wc_str() ;
1962 #else
1963     wxWCharBuffer wchar = text.wc_str( wxConvLocal ) ;
1964     chars = wxWcslen( wchar.data() ) ;
1965     ubuf = (UniChar*) wchar.data() ;
1966 #endif
1967 #endif
1968
1969     OSStatus status;
1970     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1971         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
1972
1973     for ( int pos = 0; pos < (int)chars; pos ++ )
1974     {
1975         unsigned long actualNumberOfBounds = 0;
1976         ATSTrapezoid glyphBounds;
1977
1978         // We get a single bound, since the text should only require one. If it requires more, there is an issue
1979         OSStatus result;
1980         result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
1981             kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
1982         if (result != noErr || actualNumberOfBounds != 1 )
1983             return false;
1984
1985         widths[pos] = XDEV2LOGREL(FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x ));
1986         //unsigned char uch = s[i];
1987     }
1988
1989     ::ATSUDisposeTextLayout(atsuLayout);
1990     return true;
1991 }
1992
1993 wxCoord wxDC::GetCharWidth(void) const
1994 {
1995     wxCoord width ;
1996     DoGetTextExtent( wxT("g") , &width , NULL , NULL , NULL , NULL ) ;
1997
1998     return width ;
1999 }
2000
2001 wxCoord wxDC::GetCharHeight(void) const
2002 {
2003     wxCoord height ;
2004     DoGetTextExtent( wxT("g") , NULL , &height , NULL , NULL , NULL ) ;
2005
2006     return height ;
2007 }
2008
2009 void wxDC::Clear(void)
2010 {
2011     wxCHECK_RET( Ok(), wxT("wxDC(cg)::Clear - invalid DC") );
2012
2013     if (m_backgroundBrush.Ok() && m_backgroundBrush.GetStyle() != wxTRANSPARENT)
2014     {
2015         HIRect rect = CGRectMake( -10000 , -10000 , 20000 , 20000 ) ;
2016         CGContextRef cg = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
2017         switch ( m_backgroundBrush.MacGetBrushKind() )
2018         {
2019             case kwxMacBrushTheme :
2020                 {
2021 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
2022                     if ( HIThemeSetFill != 0 )
2023                     {
2024                         HIThemeSetFill( m_backgroundBrush.MacGetTheme(), NULL, cg, kHIThemeOrientationNormal );
2025                         CGContextFillRect(cg, rect);
2026
2027                     }
2028                     else
2029 #endif
2030                     {
2031                         RGBColor color;
2032                         GetThemeBrushAsColor( m_backgroundBrush.MacGetTheme(), 32, true, &color );
2033                         CGContextSetRGBFillColor( cg, (float) color.red / 65536,
2034                             (float) color.green / 65536, (float) color.blue / 65536, 1 );
2035                             CGContextFillRect( cg, rect );
2036                     }
2037
2038                     // reset to normal value
2039                     RGBColor col = MAC_WXCOLORREF( GetBrush().GetColour().GetPixel() ) ;
2040                     CGContextSetRGBFillColor( cg, col.red / 65536.0, col.green / 65536.0, col.blue / 65536.0, 1.0 );
2041                 }
2042                 break ;
2043
2044             case kwxMacBrushThemeBackground :
2045                 {
2046                     wxFAIL_MSG( wxT("There shouldn't be theme backgrounds under Quartz") ) ;
2047
2048 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_3
2049                     if ( UMAGetSystemVersion() >= 0x1030 )
2050                     {
2051                         HIThemeBackgroundDrawInfo drawInfo ;
2052                         drawInfo.version = 0 ;
2053                         drawInfo.state = kThemeStateActive ;
2054                         drawInfo.kind = m_backgroundBrush.MacGetThemeBackground(NULL) ;
2055                         if ( drawInfo.kind == kThemeBackgroundMetal )
2056                             HIThemeDrawBackground( &rect , &drawInfo, cg ,
2057                                 kHIThemeOrientationNormal) ;
2058                             HIThemeApplyBackground( &rect , &drawInfo, cg ,
2059                                 kHIThemeOrientationNormal) ;
2060                     }
2061 #endif
2062                 }
2063                 break ;
2064
2065             case kwxMacBrushColour :
2066                 {
2067                     RGBColor col = MAC_WXCOLORREF( m_backgroundBrush.GetColour().GetPixel()) ;
2068                     CGContextSetRGBFillColor( cg , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
2069                     CGContextFillRect(cg, rect);
2070
2071                     // reset to normal value
2072                     col = MAC_WXCOLORREF( GetBrush().GetColour().GetPixel() ) ;
2073                     CGContextSetRGBFillColor( cg , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
2074                 }
2075                 break ;
2076
2077             default :
2078                 wxFAIL_MSG( wxT("unknown brush kind") ) ;
2079                 break ;
2080         }
2081     }
2082 }
2083
2084 void wxDC::MacInstallFont() const
2085 {
2086     wxCHECK_RET( Ok(), wxT("wxDC(cg)::MacInstallFont - invalid DC") );
2087
2088     if ( m_macATSUIStyle )
2089     {
2090         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
2091         m_macATSUIStyle = NULL ;
2092     }
2093
2094     if ( m_font.Ok() )
2095     {
2096         OSStatus status = noErr ;
2097         status = ATSUCreateAndCopyStyle( (ATSUStyle) m_font.MacGetATSUStyle() , (ATSUStyle*) &m_macATSUIStyle ) ;
2098
2099         wxASSERT_MSG( status == noErr, wxT("couldn't set create ATSU style") ) ;
2100
2101         Fixed atsuSize = IntToFixed( int(m_scaleY * m_font.MacGetFontSize()) ) ;
2102         RGBColor atsuColor = MAC_WXCOLORREF( m_textForegroundColour.GetPixel() ) ;
2103         ATSUAttributeTag atsuTags[] =
2104         {
2105                 kATSUSizeTag ,
2106                 kATSUColorTag ,
2107         } ;
2108         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2109         {
2110                 sizeof( Fixed ) ,
2111                 sizeof( RGBColor ) ,
2112         } ;
2113         // Boolean kTrue = true ;
2114         // Boolean kFalse = false ;
2115         // ATSUVerticalCharacterType kHorizontal = kATSUStronglyHorizontal;
2116         ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2117         {
2118                 &atsuSize ,
2119                 &atsuColor ,
2120         } ;
2121
2122         status = ::ATSUSetAttributes((ATSUStyle)m_macATSUIStyle, sizeof(atsuTags)/sizeof(ATSUAttributeTag) ,
2123             atsuTags, atsuSizes, atsuValues);
2124
2125         wxASSERT_MSG( status == noErr , wxT("couldn't Modify ATSU style") ) ;
2126     }
2127 }
2128
2129 #pragma mark -
2130
2131 // ---------------------------------------------------------------------------
2132 // coordinates transformations
2133 // ---------------------------------------------------------------------------
2134
2135 wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
2136 {
2137     return ((wxDC *)this)->XDEV2LOG(x);
2138 }
2139
2140 wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
2141 {
2142     return ((wxDC *)this)->YDEV2LOG(y);
2143 }
2144
2145 wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
2146 {
2147     return ((wxDC *)this)->XDEV2LOGREL(x);
2148 }
2149
2150 wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
2151 {
2152     return ((wxDC *)this)->YDEV2LOGREL(y);
2153 }
2154
2155 wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
2156 {
2157     return ((wxDC *)this)->XLOG2DEV(x);
2158 }
2159
2160 wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
2161 {
2162     return ((wxDC *)this)->YLOG2DEV(y);
2163 }
2164
2165 wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
2166 {
2167     return ((wxDC *)this)->XLOG2DEVREL(x);
2168 }
2169
2170 wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
2171 {
2172     return ((wxDC *)this)->YLOG2DEVREL(y);
2173 }
2174
2175 #endif // wxMAC_USE_CORE_GRAPHICS
2176