src/mac/carbon/dccg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mac/carbon/dccg.cpp
   3 // Purpose:     wxDC class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/dc.h"
  15
  16 #if wxMAC_USE_CORE_GRAPHICS
  17
  18 #ifndef WX_PRECOMP
  19     #include "wx/log.h"
  20     #include "wx/app.h"
  21     #include "wx/dcmemory.h"
  22     #include "wx/dcprint.h"
  23     #include "wx/region.h"
  24     #include "wx/image.h"
  25 #endif
  26
  27 #include "wx/mac/uma.h"
  28
  29
  30 #ifdef __MSL__
  31     #if __MSL__ >= 0x6000
  32         #include "math.h"
  33         // in case our functions were defined outside std, we make it known all the same
  34         namespace std { }
  35         using namespace std ;
  36     #endif
  37 #endif
  38
  39 #include "wx/mac/private.h"
  40
  41 IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
  42
  43 #ifndef wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
  44 #define wxMAC_USE_CORE_GRAPHICS_BLEND_MODES 0
  45 #endif
  46
  47 #if MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_4
  48 typedef float CGFloat ;
  49 #endif
  50
  51 //-----------------------------------------------------------------------------
  52 // constants
  53 //-----------------------------------------------------------------------------
  54
  55 #if !defined( __DARWIN__ ) || defined(__MWERKS__)
  56 #ifndef M_PI
  57 const double M_PI = 3.14159265358979 ;
  58 #endif
  59 #endif
  60
  61 const double RAD2DEG = 180.0 / M_PI;
  62 const short kEmulatedMode = -1 ;
  63 const short kUnsupportedMode = -2 ;
  64
  65 extern TECObjectRef s_TECNativeCToUnicode ;
  66
  67
  68 // TODO: update
  69 // The textctrl implementation still needs that (needs what?) for the non-HIView implementation
  70 //
  71 wxMacWindowClipper::wxMacWindowClipper( const wxWindow* win ) :
  72     wxMacPortSaver( (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) )
  73 {
  74     m_newPort = (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) ;
  75     m_formerClip = NewRgn() ;
  76     m_newClip = NewRgn() ;
  77     GetClip( m_formerClip ) ;
  78
  79     if ( win )
  80     {
  81         // guard against half constructed objects, this just leads to a empty clip
  82         if ( win->GetPeer() )
  83         {
  84             int x = 0 , y = 0;
  85             win->MacWindowToRootWindow( &x, &y ) ;
  86
  87             // get area including focus rect
  88             CopyRgn( (RgnHandle) ((wxWindow*)win)->MacGetVisibleRegion(true).GetWXHRGN() , m_newClip ) ;
  89             if ( !EmptyRgn( m_newClip ) )
  90                 OffsetRgn( m_newClip , x , y ) ;
  91         }
  92
  93         SetClip( m_newClip ) ;
  94     }
  95 }
  96
  97 wxMacWindowClipper::~wxMacWindowClipper()
  98 {
  99     SetPort( m_newPort ) ;
 100     SetClip( m_formerClip ) ;
 101     DisposeRgn( m_newClip ) ;
 102     DisposeRgn( m_formerClip ) ;
 103 }
 104
 105 wxMacWindowStateSaver::wxMacWindowStateSaver( const wxWindow* win ) :
 106     wxMacWindowClipper( win )
 107 {
 108     // the port is already set at this point
 109     m_newPort = (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) ;
 110     GetThemeDrawingState( &m_themeDrawingState ) ;
 111 }
 112
 113 wxMacWindowStateSaver::~wxMacWindowStateSaver()
 114 {
 115     SetPort( m_newPort ) ;
 116     SetThemeDrawingState( m_themeDrawingState , true ) ;
 117 }
 118
 119 // minimal implementation only used for appearance drawing < 10.3
 120
 121 wxMacPortSetter::wxMacPortSetter( const wxDC* dc ) :
 122     m_ph( (GrafPtr) dc->m_macPort )
 123 {
 124     wxASSERT( dc->Ok() ) ;
 125     m_dc = dc ;
 126
 127 //    dc->MacSetupPort(&m_ph) ;
 128 }
 129
 130 wxMacPortSetter::~wxMacPortSetter()
 131 {
 132 //    m_dc->MacCleanupPort(&m_ph) ;
 133 }
 134
 135 //-----------------------------------------------------------------------------
 136 // Local functions
 137 //-----------------------------------------------------------------------------
 138
 139 static inline double dmin(double a, double b) { return a < b ? a : b; }
 140 static inline double dmax(double a, double b) { return a > b ? a : b; }
 141 static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
 142
 143 //-----------------------------------------------------------------------------
 144 // device context implementation
 145 //
 146 // more and more of the dc functionality should be implemented by calling
 147 // the appropricate wxMacCGContext, but we will have to do that step by step
 148 // also coordinate conversions should be moved to native matrix ops
 149 //-----------------------------------------------------------------------------
 150
 151 // we always stock two context states, one at entry, to be able to preserve the
 152 // state we were called with, the other one after changing to HI Graphics orientation
 153 // (this one is used for getting back clippings etc)
 154
 155 wxMacCGPath::wxMacCGPath()
 156 {
 157     m_path = CGPathCreateMutable() ;
 158 }
 159
 160 wxMacCGPath::~wxMacCGPath()
 161 {
 162     CGPathRelease( m_path ) ;
 163 }
 164
 165 // opens (starts) a new subpath
 166 void wxMacCGPath::MoveToPoint( wxCoord x1 , wxCoord y1 )
 167 {
 168     CGPathMoveToPoint( m_path , NULL , x1 , y1 ) ;
 169 }
 170
 171 void wxMacCGPath::AddLineToPoint( wxCoord x1 , wxCoord y1 )
 172 {
 173     CGPathAddLineToPoint( m_path , NULL , x1 , y1 ) ;
 174 }
 175
 176 void wxMacCGPath::AddQuadCurveToPoint( wxCoord cx1, wxCoord cy1, wxCoord x1, wxCoord y1 )
 177 {
 178     CGPathAddQuadCurveToPoint( m_path , NULL , cx1 , cy1 , x1 , y1 );
 179 }
 180
 181 void wxMacCGPath::AddRectangle( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
 182 {
 183     CGRect cgRect = { { x , y } , { w , h } } ;
 184     CGPathAddRect( m_path , NULL , cgRect ) ;
 185 }
 186
 187 void wxMacCGPath::AddCircle( wxCoord x, wxCoord y , wxCoord r )
 188 {
 189     CGPathAddArc( m_path , NULL , x , y , r , 0.0 , 2 * M_PI , true ) ;
 190 }
 191
 192 // closes the current subpath
 193 void wxMacCGPath::CloseSubpath()
 194 {
 195     CGPathCloseSubpath( m_path ) ;
 196 }
 197
 198 CGPathRef wxMacCGPath::GetPath() const
 199 {
 200     return m_path ;
 201 }
 202
 203 wxMacCGContext::wxMacCGContext( CGrafPtr port )
 204 {
 205     m_qdPort = port ;
 206     m_cgContext = NULL ;
 207 }
 208
 209 wxMacCGContext::wxMacCGContext( CGContextRef cgcontext )
 210 {
 211     m_qdPort = NULL ;
 212     m_cgContext = cgcontext ;
 213     CGContextSaveGState( m_cgContext ) ;
 214     CGContextSaveGState( m_cgContext ) ;
 215 }
 216
 217 wxMacCGContext::wxMacCGContext()
 218 {
 219     m_qdPort = NULL ;
 220     m_cgContext = NULL ;
 221 }
 222
 223 wxMacCGContext::~wxMacCGContext()
 224 {
 225     if ( m_cgContext )
 226     {
 227         CGContextSynchronize( m_cgContext ) ;
 228         CGContextRestoreGState( m_cgContext ) ;
 229         CGContextRestoreGState( m_cgContext ) ;
 230     }
 231
 232     if ( m_qdPort )
 233         CGContextRelease( m_cgContext ) ;
 234 }
 235
 236
 237 void wxMacCGContext::Clip( const wxRegion &region )
 238 {
 239 //    ClipCGContextToRegion ( m_cgContext, &bounds , (RgnHandle) dc->m_macCurrentClipRgn ) ;
 240 }
 241
 242 void wxMacCGContext::StrokePath( const wxGraphicPath *p )
 243 {
 244     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 245     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 246     CGContextStrokePath( m_cgContext ) ;
 247 }
 248
 249 void wxMacCGContext::DrawPath( const wxGraphicPath *p , int fillStyle )
 250 {
 251     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 252     CGPathDrawingMode mode = m_mode ;
 253
 254     if ( fillStyle == wxODDEVEN_RULE )
 255     {
 256         if ( mode == kCGPathFill )
 257             mode = kCGPathEOFill ;
 258         else if ( mode == kCGPathFillStroke )
 259             mode = kCGPathEOFillStroke ;
 260     }
 261
 262     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 263     CGContextDrawPath( m_cgContext , mode ) ;
 264 }
 265
 266 void wxMacCGContext::FillPath( const wxGraphicPath *p , const wxColor &fillColor , int fillStyle )
 267 {
 268     const wxMacCGPath* path = dynamic_cast< const wxMacCGPath*>( p ) ;
 269     CGContextSaveGState( m_cgContext ) ;
 270
 271     RGBColor col = MAC_WXCOLORREF( fillColor.GetPixel() ) ;
 272     CGContextSetRGBFillColor( m_cgContext , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
 273     CGPathDrawingMode mode = kCGPathFill ;
 274
 275     if ( fillStyle == wxODDEVEN_RULE )
 276         mode = kCGPathEOFill ;
 277
 278     CGContextBeginPath( m_cgContext ) ;
 279     CGContextAddPath( m_cgContext , path->GetPath() ) ;
 280     CGContextClosePath( m_cgContext ) ;
 281     CGContextDrawPath( m_cgContext , mode ) ;
 282
 283     CGContextRestoreGState( m_cgContext ) ;
 284 }
 285
 286 wxGraphicPath* wxMacCGContext::CreatePath()
 287 {
 288     // make sure that we now have a real cgref, before doing
 289     // anything with paths
 290     CGContextRef cg = GetNativeContext() ;
 291     cg = NULL ;
 292
 293     return new wxMacCGPath() ;
 294 }
 295
 296 // in case we only got a QDPort only create a cgref now
 297
 298 CGContextRef wxMacCGContext::GetNativeContext()
 299 {
 300     if ( m_cgContext == NULL )
 301     {
 302         Rect bounds ;
 303         GetPortBounds( (CGrafPtr) m_qdPort , &bounds ) ;
 304         OSStatus status = CreateCGContextForPort((CGrafPtr) m_qdPort , &m_cgContext) ;
 305         CGContextSaveGState( m_cgContext ) ;
 306
 307         wxASSERT_MSG( status == noErr , wxT("Cannot nest wxDCs on the same window") ) ;
 308
 309         CGContextTranslateCTM( m_cgContext , 0 , bounds.bottom - bounds.top ) ;
 310         CGContextScaleCTM( m_cgContext , 1 , -1 ) ;
 311
 312         CGContextSaveGState( m_cgContext ) ;
 313         SetPen( m_pen ) ;
 314         SetBrush( m_brush ) ;
 315     }
 316
 317     return m_cgContext ;
 318 }
 319
 320 void wxMacCGContext::SetNativeContext( CGContextRef cg )
 321 {
 322     // we allow either setting or clearing but not replacing
 323     wxASSERT( m_cgContext == NULL || cg == NULL ) ;
 324
 325     if ( cg )
 326         CGContextSaveGState( cg ) ;
 327     m_cgContext = cg ;
 328 }
 329
 330 #pragma mark -
 331 #pragma mark wxMacCGPattern, ImagePattern, HatchPattern classes
 332
 333 // CGPattern wrapper class: always allocate on heap, never call destructor
 334
 335 class wxMacCGPattern
 336 {
 337 public :
 338     wxMacCGPattern() {}
 339
 340     // is guaranteed to be called only with a non-Null CGContextRef
 341     virtual void Render( CGContextRef ctxRef ) = 0 ;
 342
 343     operator CGPatternRef() const { return m_patternRef ; }
 344
 345 protected :
 346     virtual ~wxMacCGPattern()
 347     {
 348         // as this is called only when the m_patternRef is been released;
 349         // don't release it again
 350     }
 351
 352     static void _Render( void *info, CGContextRef ctxRef )
 353     {
 354         wxMacCGPattern* self = (wxMacCGPattern*) info ;
 355         if ( self && ctxRef )
 356             self->Render( ctxRef ) ;
 357     }
 358
 359     static void _Dispose( void *info )
 360     {
 361         wxMacCGPattern* self = (wxMacCGPattern*) info ;
 362         delete self ;
 363     }
 364
 365     CGPatternRef m_patternRef ;
 366
 367     static const CGPatternCallbacks ms_Callbacks ;
 368 } ;
 369
 370 const CGPatternCallbacks wxMacCGPattern::ms_Callbacks = { 0, &wxMacCGPattern::_Render, &wxMacCGPattern::_Dispose };
 371
 372 class ImagePattern : public wxMacCGPattern
 373 {
 374 public :
 375     ImagePattern( const wxBitmap* bmp , CGAffineTransform transform )
 376     {
 377         wxASSERT( bmp && bmp->Ok() ) ;
 378
 379         Init( (CGImageRef) bmp->CGImageCreate() , transform ) ;
 380     }
 381
 382     // ImagePattern takes ownership of CGImageRef passed in
 383     ImagePattern( CGImageRef image , CGAffineTransform transform )
 384     {
 385         if ( image )
 386             CFRetain( image ) ;
 387
 388         Init( image , transform ) ;
 389     }
 390
 391     virtual void Render( CGContextRef ctxRef )
 392     {
 393         if (m_image != NULL)
 394             HIViewDrawCGImage( ctxRef, &m_imageBounds, m_image );
 395     }
 396
 397 protected :
 398     void Init( CGImageRef image, CGAffineTransform transform )
 399     {
 400         m_image = image ;
 401         if ( m_image )
 402         {
 403             m_imageBounds = CGRectMake( 0.0, 0.0, (CGFloat)CGImageGetWidth( m_image ), (CGFloat)CGImageGetHeight( m_image ) ) ;
 404             m_patternRef = CGPatternCreate(
 405                 this , m_imageBounds, transform ,
 406                 m_imageBounds.size.width, m_imageBounds.size.height,
 407                 kCGPatternTilingNoDistortion, true , &wxMacCGPattern::ms_Callbacks ) ;
 408         }
 409     }
 410
 411     ~ImagePattern()
 412     {
 413         if ( m_image )
 414             CGImageRelease( m_image ) ;
 415     }
 416
 417     CGImageRef m_image ;
 418     CGRect m_imageBounds ;
 419 } ;
 420
 421 class HatchPattern : public wxMacCGPattern
 422 {
 423 public :
 424     HatchPattern( int hatchstyle, CGAffineTransform transform )
 425     {
 426         m_hatch = hatchstyle ;
 427         m_imageBounds = CGRectMake( 0.0, 0.0, 8.0 , 8.0 ) ;
 428         m_patternRef = CGPatternCreate(
 429             this , m_imageBounds, transform ,
 430             m_imageBounds.size.width, m_imageBounds.size.height,
 431             kCGPatternTilingNoDistortion, false , &wxMacCGPattern::ms_Callbacks ) ;
 432     }
 433
 434     void StrokeLineSegments( CGContextRef ctxRef , const CGPoint pts[] , size_t count )
 435     {
 436 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
 437         if ( UMAGetSystemVersion() >= 0x1040 )
 438         {
 439             CGContextStrokeLineSegments( ctxRef , pts , count ) ;
 440         }
 441         else
 442 #endif
 443         {
 444             CGContextBeginPath( ctxRef );
 445             for (size_t i = 0; i < count; i += 2)
 446             {
 447                 CGContextMoveToPoint(ctxRef, pts[i].x, pts[i].y);
 448                 CGContextAddLineToPoint(ctxRef, pts[i+1].x, pts[i+1].y);
 449             }
 450             CGContextStrokePath(ctxRef);
 451         }
 452     }
 453
 454     virtual void Render( CGContextRef ctxRef )
 455     {
 456         switch ( m_hatch )
 457         {
 458             case wxBDIAGONAL_HATCH :
 459                 {
 460                     CGPoint pts[] =
 461                     {
 462                     { 8.0 , 0.0 } , { 0.0 , 8.0 }
 463                     };
 464                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 465                 }
 466                 break ;
 467
 468             case wxCROSSDIAG_HATCH :
 469                 {
 470                     CGPoint pts[] =
 471                     {
 472                         { 0.0 , 0.0 } , { 8.0 , 8.0 } ,
 473                         { 8.0 , 0.0 } , { 0.0 , 8.0 }
 474                     };
 475                     StrokeLineSegments( ctxRef , pts , 4 ) ;
 476                 }
 477                 break ;
 478
 479             case wxFDIAGONAL_HATCH :
 480                 {
 481                     CGPoint pts[] =
 482                     {
 483                     { 0.0 , 0.0 } , { 8.0 , 8.0 }
 484                     };
 485                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 486                 }
 487                 break ;
 488
 489             case wxCROSS_HATCH :
 490                 {
 491                     CGPoint pts[] =
 492                     {
 493                     { 0.0 , 4.0 } , { 8.0 , 4.0 } ,
 494                     { 4.0 , 0.0 } , { 4.0 , 8.0 } ,
 495                     };
 496                     StrokeLineSegments( ctxRef , pts , 4 ) ;
 497                 }
 498                 break ;
 499
 500             case wxHORIZONTAL_HATCH :
 501                 {
 502                     CGPoint pts[] =
 503                     {
 504                     { 0.0 , 4.0 } , { 8.0 , 4.0 } ,
 505                     };
 506                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 507                 }
 508                 break ;
 509
 510             case wxVERTICAL_HATCH :
 511                 {
 512                     CGPoint pts[] =
 513                     {
 514                     { 4.0 , 0.0 } , { 4.0 , 8.0 } ,
 515                     };
 516                     StrokeLineSegments( ctxRef , pts , 2 ) ;
 517                 }
 518                 break ;
 519
 520             default:
 521                 break;
 522         }
 523     }
 524
 525 protected :
 526     ~HatchPattern() {}
 527
 528     CGRect      m_imageBounds ;
 529     int         m_hatch ;
 530 };
 531
 532 #pragma mark -
 533
 534 void wxMacCGContext::SetPen( const wxPen &pen )
 535 {
 536     m_pen = pen ;
 537     if ( m_cgContext == NULL )
 538         return ;
 539
 540     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
 541     bool stroke = pen.GetStyle() != wxTRANSPARENT ;
 542
 543 #if 0
 544     // we can benchmark performance; should go into a setting eventually
 545     CGContextSetShouldAntialias( m_cgContext , false ) ;
 546 #endif
 547
 548     if ( fill | stroke )
 549     {
 550         // set up brushes
 551         m_mode = kCGPathFill ; // just a default
 552
 553         if ( stroke )
 554         {
 555             RGBColor col = MAC_WXCOLORREF( pen.GetColour().GetPixel() ) ;
 556             CGContextSetRGBStrokeColor( m_cgContext , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
 557
 558             // TODO: * m_dc->m_scaleX
 559             CGFloat penWidth = pen.GetWidth();
 560             if (penWidth <= 0.0)
 561                 penWidth = 0.1;
 562             CGContextSetLineWidth( m_cgContext , penWidth ) ;
 563
 564             CGLineCap cap ;
 565             switch ( pen.GetCap() )
 566             {
 567                 case wxCAP_ROUND :
 568                     cap = kCGLineCapRound ;
 569                     break ;
 570
 571                 case wxCAP_PROJECTING :
 572                     cap = kCGLineCapSquare ;
 573                     break ;
 574
 575                 case wxCAP_BUTT :
 576                     cap = kCGLineCapButt ;
 577                     break ;
 578
 579                 default :
 580                     cap = kCGLineCapButt ;
 581                     break ;
 582             }
 583
 584             CGLineJoin join ;
 585             switch ( pen.GetJoin() )
 586             {
 587                 case wxJOIN_BEVEL :
 588                     join = kCGLineJoinBevel ;
 589                     break ;
 590
 591                 case wxJOIN_MITER :
 592                     join = kCGLineJoinMiter ;
 593                     break ;
 594
 595                 case wxJOIN_ROUND :
 596                     join = kCGLineJoinRound ;
 597                     break ;
 598
 599                 default :
 600                     join = kCGLineJoinMiter ;
 601                     break;
 602             }
 603
 604             m_mode = kCGPathStroke ;
 605             int count = 0 ;
 606
 607             const CGFloat *lengths = NULL ;
 608             CGFloat *userLengths = NULL ;
 609
 610             const CGFloat dashUnit = penWidth < 1.0 ? 1.0 : penWidth;
 611
 612             const CGFloat dotted[] = { dashUnit , dashUnit + 2.0 };
 613             const CGFloat short_dashed[] = { 9.0 , 6.0 };
 614             const CGFloat dashed[] = { 19.0 , 9.0 };
 615             const CGFloat dotted_dashed[] = { 9.0 , 6.0 , 3.0 , 3.0 };
 616
 617             switch ( pen.GetStyle() )
 618             {
 619                 case wxSOLID :
 620                     break ;
 621
 622                 case wxDOT :
 623                     lengths = dotted ;
 624                     count = WXSIZEOF(dotted);
 625                     break ;
 626
 627                 case wxLONG_DASH :
 628                     lengths = dashed ;
 629                     count = WXSIZEOF(dashed) ;
 630                     break ;
 631
 632                 case wxSHORT_DASH :
 633                     lengths = short_dashed ;
 634                     count = WXSIZEOF(short_dashed) ;
 635                     break ;
 636
 637                 case wxDOT_DASH :
 638                     lengths = dotted_dashed ;
 639                     count = WXSIZEOF(dotted_dashed);
 640                     break ;
 641
 642                 case wxUSER_DASH :
 643                     wxDash *dashes ;
 644                     count = pen.GetDashes( &dashes ) ;
 645                     if ((dashes != NULL) && (count > 0))
 646                     {
 647                         userLengths = new CGFloat[count] ;
 648                         for ( int i = 0 ; i < count ; ++i )
 649                         {
 650                             userLengths[i] = dashes[i] * dashUnit ;
 651
 652                             if ( i % 2 == 1 && userLengths[i] < dashUnit + 2.0 )
 653                                 userLengths[i] = dashUnit + 2.0 ;
 654                             else if ( i % 2 == 0 && userLengths[i] < dashUnit )
 655                                 userLengths[i] = dashUnit ;
 656                         }
 657                     }
 658                     lengths = userLengths ;
 659                     break ;
 660
 661                 case wxSTIPPLE :
 662                     {
 663                         CGFloat  alphaArray[1] = { 1.0 } ;
 664                         wxBitmap* bmp = pen.GetStipple() ;
 665                         if ( bmp && bmp->Ok() )
 666                         {
 667                             wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( NULL ) ) ;
 668                             CGContextSetStrokeColorSpace( m_cgContext , patternSpace ) ;
 669                             wxMacCFRefHolder<CGPatternRef> pattern( *( new ImagePattern( bmp , CGContextGetCTM( m_cgContext ) ) ) );
 670                             CGContextSetStrokePattern( m_cgContext, pattern , alphaArray ) ;
 671                         }
 672                     }
 673                     break ;
 674
 675                 default :
 676                     {
 677                         wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) ) ;
 678                         CGContextSetStrokeColorSpace( m_cgContext , patternSpace ) ;
 679                         wxMacCFRefHolder<CGPatternRef> pattern( *( new HatchPattern( pen.GetStyle() , CGContextGetCTM( m_cgContext ) ) ) );
 680
 681                         RGBColor col = MAC_WXCOLORREF( pen.GetColour().GetPixel() ) ;
 682                         CGFloat  colorArray[4] = { col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 } ;
 683
 684                         CGContextSetStrokePattern( m_cgContext, pattern , colorArray ) ;
 685                     }
 686                     break ;
 687             }
 688
 689             if ((lengths != NULL) && (count > 0))
 690             {
 691                 CGContextSetLineDash( m_cgContext , 0 , lengths , count ) ;
 692                 // force the line cap, otherwise we get artifacts (overlaps) and just solid lines
 693                 cap = kCGLineCapButt ;
 694             }
 695             else
 696             {
 697                CGContextSetLineDash( m_cgContext , 0 , NULL , 0 ) ;
 698             }
 699
 700             CGContextSetLineCap( m_cgContext , cap ) ;
 701             CGContextSetLineJoin( m_cgContext , join ) ;
 702
 703             delete[] userLengths ;
 704         }
 705
 706         if ( fill && stroke )
 707             m_mode = kCGPathFillStroke ;
 708     }
 709 }
 710
 711 void wxMacCGContext::SetBrush( const wxBrush &brush )
 712 {
 713     m_brush = brush ;
 714     if ( m_cgContext == NULL )
 715         return ;
 716
 717     bool fill = brush.GetStyle() != wxTRANSPARENT ;
 718     bool stroke = m_pen.GetStyle() != wxTRANSPARENT ;
 719
 720 #if 0
 721     // we can benchmark performance, should go into a setting later
 722     CGContextSetShouldAntialias( m_cgContext , false ) ;
 723 #endif
 724
 725     if ( fill | stroke )
 726     {
 727         // setup brushes
 728         m_mode = kCGPathFill ; // just a default
 729
 730         if ( fill )
 731         {
 732             if ( brush.GetStyle() == wxSOLID )
 733             {
 734                 RGBColor col = MAC_WXCOLORREF( brush.GetColour().GetPixel() ) ;
 735                 CGContextSetRGBFillColor( m_cgContext , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
 736             }
 737             else if ( brush.IsHatch() )
 738             {
 739                 wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) ) ;
 740                 CGContextSetFillColorSpace( m_cgContext , patternSpace ) ;
 741                 wxMacCFRefHolder<CGPatternRef> pattern( *( new HatchPattern( brush.GetStyle() , CGContextGetCTM( m_cgContext ) ) ) );
 742
 743                 RGBColor col = MAC_WXCOLORREF( brush.GetColour().GetPixel() ) ;
 744                 CGFloat  colorArray[4] = { col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 } ;
 745
 746                 CGContextSetFillPattern( m_cgContext, pattern , colorArray ) ;
 747             }
 748             else
 749             {
 750                 // now brush is a bitmap
 751                 CGFloat  alphaArray[1] = { 1.0 } ;
 752                 wxBitmap* bmp = brush.GetStipple() ;
 753                 if ( bmp && bmp->Ok() )
 754                 {
 755                     wxMacCFRefHolder<CGColorSpaceRef> patternSpace( CGColorSpaceCreatePattern( NULL ) ) ;
 756                     CGContextSetFillColorSpace( m_cgContext , patternSpace ) ;
 757                     wxMacCFRefHolder<CGPatternRef> pattern( *( new ImagePattern( bmp , CGContextGetCTM( m_cgContext ) ) ) );
 758                     CGContextSetFillPattern( m_cgContext, pattern , alphaArray ) ;
 759                 }
 760             }
 761
 762             m_mode = kCGPathFill ;
 763         }
 764
 765         if ( fill && stroke )
 766             m_mode = kCGPathFillStroke ;
 767         else if ( stroke )
 768             m_mode = kCGPathStroke ;
 769     }
 770 }
 771
 772 void AddEllipticArcToPath(CGContextRef c, CGPoint center, CGFloat a, CGFloat b, CGFloat fromDegree , CGFloat toDegree )
 773 {
 774     CGContextSaveGState(c);
 775     CGContextTranslateCTM(c, center.x, center.y);
 776     CGContextScaleCTM(c, a, b);
 777     CGContextMoveToPoint(c, 1, 0);
 778     CGContextAddArc(c, 0, 0, 1, DegToRad(fromDegree), DegToRad(toDegree), 0);
 779     CGContextClosePath(c);
 780     CGContextRestoreGState(c);
 781 }
 782
 783 void AddRoundedRectToPath(CGContextRef c, CGRect rect, CGFloat ovalWidth,
 784       CGFloat ovalHeight)
 785 {
 786     CGFloat fw, fh;
 787     if (ovalWidth == 0 || ovalHeight == 0)
 788     {
 789         CGContextAddRect(c, rect);
 790         return;
 791     }
 792
 793     CGContextSaveGState(c);
 794     CGContextTranslateCTM(c, CGRectGetMinX(rect), CGRectGetMinY(rect));
 795     CGContextScaleCTM(c, ovalWidth, ovalHeight);
 796
 797     fw = CGRectGetWidth(rect) / ovalWidth;
 798     fh = CGRectGetHeight(rect) / ovalHeight;
 799
 800     CGContextMoveToPoint(c, fw, fh / 2);
 801     CGContextAddArcToPoint(c, fw, fh, fw / 2, fh, 1);
 802     CGContextAddArcToPoint(c, 0, fh, 0, fh / 2, 1);
 803     CGContextAddArcToPoint(c, 0, 0, fw / 2, 0, 1);
 804     CGContextAddArcToPoint(c, fw, 0, fw, fh / 2, 1);
 805     CGContextClosePath(c);
 806     CGContextRestoreGState(c);
 807 }
 808
 809 #pragma mark -
 810
 811 wxDC::wxDC()
 812 {
 813     m_ok = false ;
 814     m_colour = true;
 815     m_mm_to_pix_x = mm2pt;
 816     m_mm_to_pix_y = mm2pt;
 817
 818     m_externalDeviceOriginX = 0;
 819     m_externalDeviceOriginY = 0;
 820     m_logicalScaleX = 1.0;
 821     m_logicalScaleY = 1.0;
 822     m_userScaleX = 1.0;
 823     m_userScaleY = 1.0;
 824     m_scaleX = 1.0;
 825     m_scaleY = 1.0;
 826     m_needComputeScaleX =
 827     m_needComputeScaleY = false;
 828
 829     m_macPort = 0 ;
 830     m_macLocalOrigin.x =
 831     m_macLocalOrigin.y = 0 ;
 832
 833     m_pen = *wxBLACK_PEN;
 834     m_font = *wxNORMAL_FONT;
 835     m_brush = *wxWHITE_BRUSH;
 836
 837     m_macATSUIStyle = NULL ;
 838     m_graphicContext = NULL ;
 839 }
 840
 841 wxDC::~wxDC()
 842 {
 843     if ( m_macATSUIStyle )
 844     {
 845         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
 846         m_macATSUIStyle = NULL ;
 847     }
 848
 849     delete m_graphicContext ;
 850 }
 851
 852 void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask )
 853 {
 854     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawBitmap - invalid DC") );
 855     wxCHECK_RET( bmp.Ok(), wxT("wxDC(cg)::DoDrawBitmap - invalid bitmap") );
 856
 857     wxCoord xx = XLOG2DEVMAC(x);
 858     wxCoord yy = YLOG2DEVMAC(y);
 859     wxCoord w = bmp.GetWidth();
 860     wxCoord h = bmp.GetHeight();
 861     wxCoord ww = XLOG2DEVREL(w);
 862     wxCoord hh = YLOG2DEVREL(h);
 863
 864     CGContextRef cg = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
 865     CGImageRef image = (CGImageRef)( bmp.CGImageCreate() ) ;
 866     HIRect r = CGRectMake( xx , yy , ww , hh ) ;
 867     HIViewDrawCGImage( cg , &r , image ) ;
 868     CGImageRelease( image ) ;
 869 }
 870
 871 void wxDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )
 872 {
 873     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawIcon - invalid DC") );
 874     wxCHECK_RET( icon.Ok(), wxT("wxDC(cg)::DoDrawIcon - invalid icon") );
 875
 876     wxCoord xx = XLOG2DEVMAC(x);
 877     wxCoord yy = YLOG2DEVMAC(y);
 878     wxCoord w = icon.GetWidth();
 879     wxCoord h = icon.GetHeight();
 880     wxCoord ww = XLOG2DEVREL(w);
 881     wxCoord hh = YLOG2DEVREL(h);
 882
 883     CGContextRef cg = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
 884     CGRect r = CGRectMake( 00 , 00 , ww , hh ) ;
 885     CGContextSaveGState( cg );
 886     CGContextTranslateCTM( cg, xx , yy + hh );
 887     CGContextScaleCTM( cg, 1, -1 );
 888     PlotIconRefInContext( cg , &r , kAlignNone , kTransformNone ,
 889         NULL , kPlotIconRefNormalFlags , MAC_WXHICON( icon.GetHICON() ) ) ;
 890     CGContextRestoreGState( cg ) ;
 891 }
 892
 893 void wxDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
 894 {
 895     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoSetClippingRegion - invalid DC") );
 896
 897     wxCoord xx, yy, ww, hh;
 898     xx = XLOG2DEVMAC(x);
 899     yy = YLOG2DEVMAC(y);
 900     ww = XLOG2DEVREL(width);
 901     hh = YLOG2DEVREL(height);
 902
 903     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
 904     CGRect clipRect = CGRectMake( xx , yy , ww, hh ) ;
 905     CGContextClipToRect( cgContext , clipRect ) ;
 906
 907 //    SetRectRgn( (RgnHandle) m_macCurrentClipRgn , xx , yy , xx + ww , yy + hh ) ;
 908 //    SectRgn( (RgnHandle) m_macCurrentClipRgn , (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
 909
 910     if ( m_clipping )
 911     {
 912         m_clipX1 = wxMax( m_clipX1, xx );
 913         m_clipY1 = wxMax( m_clipY1, yy );
 914         m_clipX2 = wxMin( m_clipX2, (xx + ww) );
 915         m_clipY2 = wxMin( m_clipY2, (yy + hh) );
 916     }
 917     else
 918     {
 919         m_clipping = true;
 920
 921         m_clipX1 = xx;
 922         m_clipY1 = yy;
 923         m_clipX2 = xx + ww;
 924         m_clipY2 = yy + hh;
 925     }
 926
 927     // TODO: as soon as we don't reset the context for each operation anymore
 928     // we have to update the context as well
 929 }
 930
 931 void wxDC::DoSetClippingRegionAsRegion( const wxRegion &region )
 932 {
 933     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoSetClippingRegionAsRegion - invalid DC") );
 934
 935     if (region.Empty())
 936     {
 937         DestroyClippingRegion();
 938         return;
 939     }
 940
 941     wxCoord x, y, w, h;
 942     region.GetBox( x, y, w, h );
 943     wxCoord xx, yy, ww, hh;
 944     xx = XLOG2DEVMAC(x);
 945     yy = YLOG2DEVMAC(y);
 946     ww = XLOG2DEVREL(w);
 947     hh = YLOG2DEVREL(h);
 948
 949     // if we have a scaling that we cannot map onto native regions
 950     // we must use the box
 951     if ( ww != w || hh != h )
 952     {
 953         wxDC::DoSetClippingRegion( x, y, w, h );
 954     }
 955     else
 956     {
 957 #if 0
 958         CopyRgn( (RgnHandle) region.GetWXHRGN() , (RgnHandle) m_macCurrentClipRgn ) ;
 959         if ( xx != x || yy != y )
 960             OffsetRgn( (RgnHandle) m_macCurrentClipRgn , xx - x , yy - y ) ;
 961         SectRgn( (RgnHandle)m_macCurrentClipRgn , (RgnHandle)m_macBoundaryClipRgn , (RgnHandle)m_macCurrentClipRgn ) ;
 962 #endif
 963
 964         if ( m_clipping )
 965         {
 966             m_clipX1 = wxMax( m_clipX1, xx );
 967             m_clipY1 = wxMax( m_clipY1, yy );
 968             m_clipX2 = wxMin( m_clipX2, (xx + ww) );
 969             m_clipY2 = wxMin( m_clipY2, (yy + hh) );
 970         }
 971         else
 972         {
 973             m_clipping = true;
 974
 975             m_clipX1 = xx;
 976             m_clipY1 = yy;
 977             m_clipX2 = xx + ww;
 978             m_clipY2 = yy + hh;
 979         }
 980     }
 981 }
 982
 983 void wxDC::DestroyClippingRegion()
 984 {
 985 //    CopyRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
 986
 987     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
 988     CGContextRestoreGState( cgContext );
 989     CGContextSaveGState( cgContext );
 990
 991     m_graphicContext->SetPen( m_pen ) ;
 992     m_graphicContext->SetBrush( m_brush ) ;
 993
 994     m_clipping = false;
 995 }
 996
 997 void wxDC::DoGetSizeMM( int* width, int* height ) const
 998 {
 999     int w = 0, h = 0;
1000
1001     GetSize( &w, &h );
1002     if (width)
1003         *width = long( double(w) / (m_scaleX * m_mm_to_pix_x) );
1004     if (height)
1005         *height = long( double(h) / (m_scaleY * m_mm_to_pix_y) );
1006 }
1007
1008 void wxDC::SetTextForeground( const wxColour &col )
1009 {
1010     wxCHECK_RET( Ok(), wxT("wxDC(cg)::SetTextForeground - invalid DC") );
1011
1012     if ( col != m_textForegroundColour )
1013     {
1014         m_textForegroundColour = col;
1015         MacInstallFont() ;
1016     }
1017 }
1018
1019 void wxDC::SetTextBackground( const wxColour &col )
1020 {
1021     wxCHECK_RET( Ok(), wxT("wxDC(cg)::SetTextBackground - invalid DC") );
1022
1023     m_textBackgroundColour = col;
1024 }
1025
1026 void wxDC::SetMapMode( int mode )
1027 {
1028     switch (mode)
1029     {
1030     case wxMM_TWIPS:
1031         SetLogicalScale( twips2mm * m_mm_to_pix_x, twips2mm * m_mm_to_pix_y );
1032         break;
1033
1034     case wxMM_POINTS:
1035         SetLogicalScale( pt2mm * m_mm_to_pix_x, pt2mm * m_mm_to_pix_y );
1036         break;
1037
1038     case wxMM_METRIC:
1039         SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y );
1040         break;
1041
1042     case wxMM_LOMETRIC:
1043         SetLogicalScale( m_mm_to_pix_x / 10.0, m_mm_to_pix_y / 10.0 );
1044         break;
1045
1046     case wxMM_TEXT:
1047     default:
1048         SetLogicalScale( 1.0, 1.0 );
1049         break;
1050     }
1051
1052     if (mode != wxMM_TEXT)
1053     {
1054         m_needComputeScaleX =
1055         m_needComputeScaleY = true;
1056     }
1057 }
1058
1059 void wxDC::SetUserScale( double x, double y )
1060 {
1061     // allow negative ? -> no
1062     m_userScaleX = x;
1063     m_userScaleY = y;
1064     ComputeScaleAndOrigin();
1065 }
1066
1067 void wxDC::SetLogicalScale( double x, double y )
1068 {
1069     // allow negative ?
1070     m_logicalScaleX = x;
1071     m_logicalScaleY = y;
1072     ComputeScaleAndOrigin();
1073 }
1074
1075 void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y )
1076 {
1077     m_logicalOriginX = x * m_signX;   // is this still correct ?
1078     m_logicalOriginY = y * m_signY;
1079     ComputeScaleAndOrigin();
1080 }
1081
1082 void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y )
1083 {
1084     m_externalDeviceOriginX = x;
1085     m_externalDeviceOriginY = y;
1086     ComputeScaleAndOrigin();
1087 }
1088
1089 void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
1090 {
1091     m_signX = (xLeftRight ?  1 : -1);
1092     m_signY = (yBottomUp ? -1 :  1);
1093     ComputeScaleAndOrigin();
1094 }
1095
1096 wxSize wxDC::GetPPI() const
1097 {
1098     return wxSize(72, 72);
1099 }
1100
1101 int wxDC::GetDepth() const
1102 {
1103     return 32;
1104 }
1105
1106 void wxDC::ComputeScaleAndOrigin()
1107 {
1108     // CMB: copy scale to see if it changes
1109     double origScaleX = m_scaleX;
1110     double origScaleY = m_scaleY;
1111     m_scaleX = m_logicalScaleX * m_userScaleX;
1112     m_scaleY = m_logicalScaleY * m_userScaleY;
1113     m_deviceOriginX = m_externalDeviceOriginX;
1114     m_deviceOriginY = m_externalDeviceOriginY;
1115
1116     // CMB: if scale has changed call SetPen to recalulate the line width
1117     if (m_scaleX != origScaleX || m_scaleY != origScaleY)
1118     {
1119         // this is a bit artificial, but we need to force wxDC to think
1120         // the pen has changed
1121         wxPen pen( GetPen() );
1122
1123         m_pen = wxNullPen;
1124         SetPen( pen );
1125     }
1126 }
1127
1128 void wxDC::SetPalette( const wxPalette& palette )
1129 {
1130 }
1131
1132 void wxDC::SetBackgroundMode( int mode )
1133 {
1134     m_backgroundMode = mode ;
1135 }
1136
1137 void wxDC::SetFont( const wxFont &font )
1138 {
1139     m_font = font;
1140     MacInstallFont() ;
1141 }
1142
1143 void wxDC::SetPen( const wxPen &pen )
1144 {
1145     if ( m_pen == pen )
1146         return ;
1147
1148     m_pen = pen;
1149     if ( m_graphicContext )
1150     {
1151         if ( m_pen.GetStyle() == wxSOLID || m_pen.GetStyle() == wxTRANSPARENT )
1152         {
1153             m_graphicContext->SetPen( m_pen ) ;
1154         }
1155         else
1156         {
1157             // we have to compensate for moved device origins etc. otherwise patterned pens are standing still
1158             // eg when using a wxScrollWindow and scrolling around
1159             CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1160             int origX = XLOG2DEVMAC( 0 ) ;
1161             int origY = YLOG2DEVMAC( 0 ) ;
1162             CGContextTranslateCTM( cgContext, origX, origY );
1163             m_graphicContext->SetPen( m_pen ) ;
1164             CGContextTranslateCTM( cgContext, -origX, -origY );
1165         }
1166     }
1167 }
1168
1169 void wxDC::SetBrush( const wxBrush &brush )
1170 {
1171     if (m_brush == brush)
1172         return;
1173
1174     m_brush = brush;
1175     if ( m_graphicContext )
1176     {
1177         if ( brush.GetStyle() == wxSOLID || brush.GetStyle() == wxTRANSPARENT )
1178         {
1179             m_graphicContext->SetBrush( m_brush ) ;
1180         }
1181         else
1182         {
1183             // we have to compensate for moved device origins etc. otherwise patterned brushes are standing still
1184             // eg when using a wxScrollWindow and scrolling around
1185             CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1186             int origX = XLOG2DEVMAC(0) ;
1187             int origY = YLOG2DEVMAC(0) ;
1188             CGContextTranslateCTM( cgContext, origX, origY );
1189             m_graphicContext->SetBrush( m_brush ) ;
1190             CGContextTranslateCTM( cgContext, -origX, -origY );
1191         }
1192     }
1193 }
1194
1195 void wxDC::SetBackground( const wxBrush &brush )
1196 {
1197     if (m_backgroundBrush == brush)
1198         return;
1199
1200     m_backgroundBrush = brush;
1201     if (!m_backgroundBrush.Ok())
1202         return;
1203 }
1204
1205 void wxDC::SetLogicalFunction( int function )
1206 {
1207     if (m_logicalFunction == function)
1208         return;
1209
1210     m_logicalFunction = function ;
1211 #if wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
1212     CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1213     if ( m_logicalFunction == wxCOPY )
1214         CGContextSetBlendMode( cgContext, kCGBlendModeNormal ) ;
1215     else if ( m_logicalFunction == wxINVERT )
1216         CGContextSetBlendMode( cgContext, kCGBlendModeExclusion ) ;
1217     else
1218         CGContextSetBlendMode( cgContext, kCGBlendModeNormal ) ;
1219 #endif
1220 }
1221
1222 extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
1223                           const wxColour & col, int style);
1224
1225 bool wxDC::DoFloodFill(wxCoord x, wxCoord y,
1226                        const wxColour& col, int style)
1227 {
1228     return wxDoFloodFill(this, x, y, col, style);
1229 }
1230
1231 bool wxDC::DoGetPixel( wxCoord x, wxCoord y, wxColour *col ) const
1232 {
1233     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoGetPixel - invalid DC") );
1234
1235     wxMacPortSaver helper((CGrafPtr)m_macPort) ;
1236     RGBColor colour;
1237
1238     // NB: GetCPixel is a deprecated QD call, and a slow one at that
1239     GetCPixel(
1240         XLOG2DEVMAC(x) + m_macLocalOriginInPort.x - m_macLocalOrigin.x,
1241         YLOG2DEVMAC(y) + m_macLocalOriginInPort.y - m_macLocalOrigin.y, &colour );
1242
1243     // convert from Mac colour to wx
1244     col->Set( colour.red >> 8, colour.green >> 8, colour.blue >> 8 );
1245
1246     return true ;
1247 }
1248
1249 void wxDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
1250 {
1251     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawLine - invalid DC") );
1252
1253 #if !wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
1254     if ( m_logicalFunction != wxCOPY )
1255         return ;
1256 #endif
1257
1258     wxCoord xx1 = XLOG2DEVMAC(x1) ;
1259     wxCoord yy1 = YLOG2DEVMAC(y1) ;
1260     wxCoord xx2 = XLOG2DEVMAC(x2) ;
1261     wxCoord yy2 = YLOG2DEVMAC(y2) ;
1262
1263     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1264     path->MoveToPoint( xx1, yy1 ) ;
1265     path->AddLineToPoint( xx2 , yy2 ) ;
1266     path->CloseSubpath() ;
1267     m_graphicContext->StrokePath( path ) ;
1268     delete path ;
1269
1270     CalcBoundingBox(x1, y1);
1271     CalcBoundingBox(x2, y2);
1272 }
1273
1274 void wxDC::DoCrossHair( wxCoord x, wxCoord y )
1275 {
1276     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoCrossHair - invalid DC") );
1277
1278     if ( m_logicalFunction != wxCOPY )
1279         return ;
1280
1281     int w = 0, h = 0;
1282
1283     GetSize( &w, &h );
1284     wxCoord xx = XLOG2DEVMAC(x);
1285     wxCoord yy = YLOG2DEVMAC(y);
1286
1287     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1288     path->MoveToPoint( XLOG2DEVMAC(0), yy ) ;
1289     path->AddLineToPoint( XLOG2DEVMAC(w), yy ) ;
1290     path->CloseSubpath() ;
1291     path->MoveToPoint( xx, YLOG2DEVMAC(0) ) ;
1292     path->AddLineToPoint( xx, YLOG2DEVMAC(h) ) ;
1293     path->CloseSubpath() ;
1294     m_graphicContext->StrokePath( path ) ;
1295     delete path ;
1296
1297     CalcBoundingBox(x, y);
1298     CalcBoundingBox(x + w, y + h);
1299 }
1300
1301 void wxDC::DoDrawArc( wxCoord x1, wxCoord y1,
1302                       wxCoord x2, wxCoord y2,
1303                       wxCoord xc, wxCoord yc )
1304 {
1305     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawArc - invalid DC") );
1306
1307     if ( m_logicalFunction != wxCOPY )
1308         return ;
1309
1310     wxCoord xx1 = XLOG2DEVMAC(x1);
1311     wxCoord yy1 = YLOG2DEVMAC(y1);
1312     wxCoord xx2 = XLOG2DEVMAC(x2);
1313     wxCoord yy2 = YLOG2DEVMAC(y2);
1314     wxCoord xxc = XLOG2DEVMAC(xc);
1315     wxCoord yyc = YLOG2DEVMAC(yc);
1316
1317     double dx = xx1 - xxc;
1318     double dy = yy1 - yyc;
1319     double radius = sqrt((double)(dx * dx + dy * dy));
1320     wxCoord rad = (wxCoord)radius;
1321     double sa, ea;
1322     if (xx1 == xx2 && yy1 == yy2)
1323     {
1324         sa = 0.0;
1325         ea = 360.0;
1326     }
1327     else if (radius == 0.0)
1328     {
1329         sa = ea = 0.0;
1330     }
1331     else
1332     {
1333         sa = (xx1 - xxc == 0) ?
1334             (yy1 - yyc < 0) ? 90.0 : -90.0 :
1335         -atan2(double(yy1 - yyc), double(xx1 - xxc)) * RAD2DEG;
1336         ea = (xx2 - xxc == 0) ?
1337             (yy2 - yyc < 0) ? 90.0 : -90.0 :
1338         -atan2(double(yy2 - yyc), double(xx2 - xxc)) * RAD2DEG;
1339     }
1340
1341     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
1342     wxMacCGContext* mctx = ((wxMacCGContext*) m_graphicContext) ;
1343     CGContextRef ctx = mctx->GetNativeContext() ;
1344     CGContextSaveGState( ctx ) ;
1345     CGContextTranslateCTM( ctx, xxc , yyc );
1346     CGContextScaleCTM( ctx , 1 , -1 ) ;
1347     if ( fill )
1348         CGContextMoveToPoint( ctx , 0 , 0 ) ;
1349     CGContextAddArc( ctx, 0, 0 , rad , DegToRad(sa), DegToRad(ea), 0 );
1350     if ( fill )
1351         CGContextAddLineToPoint( ctx , 0 , 0 ) ;
1352     CGContextRestoreGState( ctx ) ;
1353     CGContextDrawPath( ctx , mctx->GetDrawingMode() ) ;
1354 }
1355
1356 void wxDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord w, wxCoord h,
1357                               double sa, double ea )
1358 {
1359     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawEllipticArc - invalid DC") );
1360
1361     if ( m_logicalFunction != wxCOPY )
1362         return ;
1363
1364     wxCoord xx = XLOG2DEVMAC(x);
1365     wxCoord yy = YLOG2DEVMAC(y);
1366     wxCoord ww = m_signX * XLOG2DEVREL(w);
1367     wxCoord hh = m_signY * YLOG2DEVREL(h);
1368
1369     // handle -ve width and/or height
1370     if (ww < 0)
1371     {
1372         ww = -ww;
1373         xx = xx - ww;
1374     }
1375     if (hh < 0)
1376     {
1377         hh = -hh;
1378         yy = yy - hh;
1379     }
1380
1381     bool fill = m_brush.GetStyle() != wxTRANSPARENT ;
1382
1383     wxMacCGContext* mctx = ((wxMacCGContext*) m_graphicContext) ;
1384     CGContextRef ctx = mctx->GetNativeContext() ;
1385
1386     CGContextSaveGState( ctx ) ;
1387     CGContextTranslateCTM( ctx, xx + ww / 2, yy + hh / 2 );
1388     CGContextScaleCTM( ctx , 1 * ww / 2 , -1 * hh / 2 ) ;
1389     if ( fill )
1390         CGContextMoveToPoint( ctx , 0 , 0 ) ;
1391     CGContextAddArc( ctx, 0, 0, 1, DegToRad( sa ), DegToRad( ea ), 0 );
1392     if ( fill )
1393         CGContextAddLineToPoint( ctx , 0 , 0 ) ;
1394     CGContextRestoreGState( ctx ) ;
1395     CGContextDrawPath( ctx , mctx->GetDrawingMode() ) ;
1396 }
1397
1398 void wxDC::DoDrawPoint( wxCoord x, wxCoord y )
1399 {
1400     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawPoint - invalid DC") );
1401
1402     DoDrawLine( x , y , x + 1 , y + 1 ) ;
1403 }
1404
1405 void wxDC::DoDrawLines(int n, wxPoint points[],
1406                         wxCoord xoffset, wxCoord yoffset)
1407 {
1408     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawLines - invalid DC") );
1409
1410 #if !wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
1411     if ( m_logicalFunction != wxCOPY )
1412         return ;
1413 #endif
1414
1415     wxCoord x1, x2 , y1 , y2 ;
1416     x1 = XLOG2DEVMAC(points[0].x + xoffset);
1417     y1 = YLOG2DEVMAC(points[0].y + yoffset);
1418     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1419     path->MoveToPoint( x1 , y1 ) ;
1420     for (int i = 1; i < n; i++)
1421     {
1422         x2 = XLOG2DEVMAC(points[i].x + xoffset);
1423         y2 = YLOG2DEVMAC(points[i].y + yoffset);
1424
1425         path->AddLineToPoint( x2 , y2 ) ;
1426     }
1427
1428     m_graphicContext->StrokePath( path ) ;
1429     delete path ;
1430 }
1431
1432 #if wxUSE_SPLINES
1433 void wxDC::DoDrawSpline(wxList *points)
1434 {
1435     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawSpline - invalid DC") );
1436
1437     if ( m_logicalFunction != wxCOPY )
1438         return ;
1439
1440     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1441
1442     wxList::compatibility_iterator node = points->GetFirst();
1443     if (node == wxList::compatibility_iterator())
1444         // empty list
1445         return;
1446
1447     wxPoint *p = (wxPoint *)node->GetData();
1448
1449     wxCoord x1 = p->x;
1450     wxCoord y1 = p->y;
1451
1452     node = node->GetNext();
1453     p = (wxPoint *)node->GetData();
1454
1455     wxCoord x2 = p->x;
1456     wxCoord y2 = p->y;
1457     wxCoord cx1 = ( x1 + x2 ) / 2;
1458     wxCoord cy1 = ( y1 + y2 ) / 2;
1459
1460     path->MoveToPoint( XLOG2DEVMAC( x1 ) , YLOG2DEVMAC( y1 ) ) ;
1461     path->AddLineToPoint( XLOG2DEVMAC( cx1 ) , YLOG2DEVMAC( cy1 ) ) ;
1462
1463 #if !wxUSE_STL
1464     while ((node = node->GetNext()) != NULL)
1465 #else
1466     while ((node = node->GetNext()))
1467 #endif // !wxUSE_STL
1468     {
1469         p = (wxPoint *)node->GetData();
1470         x1 = x2;
1471         y1 = y2;
1472         x2 = p->x;
1473         y2 = p->y;
1474         wxCoord cx4 = (x1 + x2) / 2;
1475         wxCoord cy4 = (y1 + y2) / 2;
1476
1477         path->AddQuadCurveToPoint(
1478             XLOG2DEVMAC( x1 ) , YLOG2DEVMAC( y1 ) ,
1479             XLOG2DEVMAC( cx4 ) , YLOG2DEVMAC( cy4 ) ) ;
1480
1481         cx1 = cx4;
1482         cy1 = cy4;
1483     }
1484
1485     path->AddLineToPoint( XLOG2DEVMAC( x2 ) , YLOG2DEVMAC( y2 ) ) ;
1486
1487     m_graphicContext->StrokePath( path ) ;
1488     delete path ;
1489 }
1490 #endif
1491
1492 void wxDC::DoDrawPolygon( int n, wxPoint points[],
1493                           wxCoord xoffset, wxCoord yoffset,
1494                           int fillStyle )
1495 {
1496     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawPolygon - invalid DC") );
1497
1498     if ( n <= 0 || (m_brush.GetStyle() == wxTRANSPARENT && m_pen.GetStyle() == wxTRANSPARENT ) )
1499         return ;
1500     if ( m_logicalFunction != wxCOPY )
1501         return ;
1502
1503     wxCoord x1, x2 , y1 , y2 ;
1504     x2 = x1 = XLOG2DEVMAC(points[0].x + xoffset);
1505     y2 = y1 = YLOG2DEVMAC(points[0].y + yoffset);
1506
1507     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1508     path->MoveToPoint( x1 , y1 ) ;
1509     for (int i = 1; i < n; i++)
1510     {
1511         x2 = XLOG2DEVMAC(points[i].x + xoffset);
1512         y2 = YLOG2DEVMAC(points[i].y + yoffset);
1513
1514         path->AddLineToPoint( x2 , y2 ) ;
1515     }
1516
1517     if ( x1 != x2 || y1 != y2 )
1518         path->AddLineToPoint( x1, y1 ) ;
1519
1520     path->CloseSubpath() ;
1521     m_graphicContext->DrawPath( path , fillStyle ) ;
1522
1523     delete path ;
1524 }
1525
1526 void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1527 {
1528     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRectangle - invalid DC") );
1529
1530     if ( m_logicalFunction != wxCOPY )
1531         return ;
1532
1533     wxCoord xx = XLOG2DEVMAC(x);
1534     wxCoord yy = YLOG2DEVMAC(y);
1535     wxCoord ww = m_signX * XLOG2DEVREL(width);
1536     wxCoord hh = m_signY * YLOG2DEVREL(height);
1537
1538     // CMB: draw nothing if transformed w or h is 0
1539     if (ww == 0 || hh == 0)
1540         return;
1541
1542     // CMB: handle -ve width and/or height
1543     if (ww < 0)
1544     {
1545         ww = -ww;
1546         xx = xx - ww;
1547     }
1548     if (hh < 0)
1549     {
1550         hh = -hh;
1551         yy = yy - hh;
1552     }
1553
1554     wxGraphicPath* path = m_graphicContext->CreatePath() ;
1555     path->AddRectangle( xx , yy , ww , hh ) ;
1556     m_graphicContext->DrawPath( path ) ;
1557     delete path ;
1558 }
1559
1560 void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y,
1561                                    wxCoord width, wxCoord height,
1562                                    double radius)
1563 {
1564     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRoundedRectangle - invalid DC") );
1565
1566     if ( m_logicalFunction != wxCOPY )
1567         return ;
1568
1569     if (radius < 0.0)
1570         radius = - radius * ((width < height) ? width : height);
1571     wxCoord xx = XLOG2DEVMAC(x);
1572     wxCoord yy = YLOG2DEVMAC(y);
1573     wxCoord ww = m_signX * XLOG2DEVREL(width);
1574     wxCoord hh = m_signY * YLOG2DEVREL(height);
1575
1576     // CMB: draw nothing if transformed w or h is 0
1577     if (ww == 0 || hh == 0)
1578         return;
1579
1580     // CMB: handle -ve width and/or height
1581     if (ww < 0)
1582     {
1583         ww = -ww;
1584         xx = xx - ww;
1585     }
1586     if (hh < 0)
1587     {
1588         hh = -hh;
1589         yy = yy - hh;
1590     }
1591
1592     wxMacCGContext* mctx = ((wxMacCGContext*) m_graphicContext) ;
1593     CGContextRef ctx = mctx->GetNativeContext() ;
1594     AddRoundedRectToPath( ctx , CGRectMake( xx , yy , ww , hh ) , radius , radius ) ;
1595     CGContextDrawPath( ctx , mctx->GetDrawingMode() ) ;
1596 }
1597
1598 void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1599 {
1600     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawEllipse - invalid DC") );
1601
1602     if ( m_logicalFunction != wxCOPY )
1603         return ;
1604
1605     wxCoord xx = XLOG2DEVMAC(x);
1606     wxCoord yy = YLOG2DEVMAC(y);
1607     wxCoord ww = m_signX * XLOG2DEVREL(width);
1608     wxCoord hh = m_signY * YLOG2DEVREL(height);
1609
1610     // CMB: draw nothing if transformed w or h is 0
1611     if (ww == 0 || hh == 0)
1612         return;
1613
1614     // CMB: handle -ve width and/or height
1615     if (ww < 0)
1616     {
1617         ww = -ww;
1618         xx = xx - ww;
1619     }
1620     if (hh < 0)
1621     {
1622         hh = -hh;
1623         yy = yy - hh;
1624     }
1625
1626     wxMacCGContext* mctx = ((wxMacCGContext*) m_graphicContext) ;
1627     CGContextRef ctx = mctx->GetNativeContext() ;
1628     CGContextSaveGState( ctx ) ;
1629     CGContextTranslateCTM( ctx, xx + ww / 2, yy + hh / 2 );
1630     CGContextScaleCTM( ctx , ww / 2 , hh / 2 ) ;
1631     CGContextAddArc( ctx, 0, 0, 1, 0 , 2 * M_PI , 0 );
1632     CGContextRestoreGState( ctx ) ;
1633     CGContextDrawPath( ctx , mctx->GetDrawingMode() ) ;
1634 }
1635
1636 bool wxDC::CanDrawBitmap() const
1637 {
1638     return true ;
1639 }
1640
1641 bool wxDC::DoBlit(
1642     wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
1643     wxDC *source, wxCoord xsrc, wxCoord ysrc, int logical_func , bool useMask,
1644     wxCoord xsrcMask, wxCoord ysrcMask )
1645 {
1646     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoBlit - invalid DC") );
1647     wxCHECK_MSG( source->Ok(), false, wxT("wxDC(cg)::DoBlit - invalid source DC") );
1648
1649     if ( logical_func == wxNO_OP )
1650         return true ;
1651
1652     if (xsrcMask == -1 && ysrcMask == -1)
1653     {
1654         xsrcMask = xsrc;
1655         ysrcMask = ysrc;
1656     }
1657
1658     wxCoord yysrc = source->YLOG2DEVMAC(ysrc) ;
1659     wxCoord xxsrc = source->XLOG2DEVMAC(xsrc) ;
1660     wxCoord wwsrc = source->XLOG2DEVREL(width) ;
1661     wxCoord hhsrc = source->YLOG2DEVREL(height) ;
1662
1663     wxCoord yydest = YLOG2DEVMAC(ydest) ;
1664     wxCoord xxdest = XLOG2DEVMAC(xdest) ;
1665     wxCoord wwdest = XLOG2DEVREL(width) ;
1666     wxCoord hhdest = YLOG2DEVREL(height) ;
1667
1668     wxMemoryDC* memdc = dynamic_cast<wxMemoryDC*>(source) ;
1669     if ( memdc && logical_func == wxCOPY )
1670     {
1671         wxBitmap blit = memdc->GetSelectedObject() ;
1672
1673         wxASSERT_MSG( blit.Ok() , wxT("Invalid bitmap for blitting") ) ;
1674
1675         wxCoord bmpwidth = blit.GetWidth();
1676         wxCoord bmpheight = blit.GetHeight();
1677
1678         if ( xxsrc != 0 || yysrc != 0 || bmpwidth != wwsrc || bmpheight != hhsrc )
1679         {
1680             wwsrc = wxMin( wwsrc , bmpwidth - xxsrc ) ;
1681             hhsrc = wxMin( hhsrc , bmpheight - yysrc ) ;
1682             if ( wwsrc > 0 && hhsrc > 0 )
1683             {
1684                 if ( xxsrc >= 0 && yysrc >= 0 )
1685                 {
1686                     wxRect subrect( xxsrc, yysrc, wwsrc , hhsrc ) ;
1687                     blit = blit.GetSubBitmap( subrect ) ;
1688                 }
1689                 else
1690                 {
1691                     // in this case we'd probably have to adjust the different coordinates, but
1692                     // we have to find out proper contract first
1693                     blit = wxNullBitmap ;
1694                 }
1695             }
1696             else
1697             {
1698                 blit = wxNullBitmap ;
1699             }
1700         }
1701
1702         if ( blit.Ok() )
1703         {
1704             CGContextRef cg = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1705             CGImageRef image = (CGImageRef)( blit.CGImageCreate() ) ;
1706             HIRect r = CGRectMake( xxdest , yydest , wwdest , hhdest ) ;
1707             HIViewDrawCGImage( cg , &r , image ) ;
1708             CGImageRelease( image ) ;
1709         }
1710     }
1711     else
1712     {
1713 #if 0
1714         CGContextRef cg = (wxMacCGContext*)(source->GetGraphicContext())->GetNativeContext() ;
1715         void *data = CGBitmapContextGetData( cg ) ;
1716 #endif
1717
1718         return false ; // wxFAIL_MSG( wxT("Blitting is only supported from bitmap contexts") ) ;
1719     }
1720
1721     return true;
1722 }
1723
1724 void wxDC::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y,
1725                               double angle)
1726 {
1727     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawRotatedText - invalid DC") );
1728     wxCHECK_RET( m_macATSUIStyle != NULL, wxT("wxDC(cg)::DoDrawRotatedText - no valid font set") );
1729
1730     if ( str.length() == 0 )
1731         return ;
1732     if ( m_logicalFunction != wxCOPY )
1733         return ;
1734
1735     OSStatus status = noErr ;
1736     ATSUTextLayout atsuLayout ;
1737     UniCharCount chars = str.length() ;
1738     UniChar* ubuf = NULL ;
1739
1740 #if SIZEOF_WCHAR_T == 4
1741     wxMBConvUTF16 converter ;
1742 #if wxUSE_UNICODE
1743     size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 ) ;
1744     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1745     converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 ) ;
1746 #else
1747     const wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1748     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
1749     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1750     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
1751 #endif
1752     chars = unicharlen / 2 ;
1753 #else
1754 #if wxUSE_UNICODE
1755     ubuf = (UniChar*) str.wc_str() ;
1756 #else
1757     wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1758     chars = wxWcslen( wchar.data() ) ;
1759     ubuf = (UniChar*) wchar.data() ;
1760 #endif
1761 #endif
1762
1763     int drawX = XLOG2DEVMAC(x) ;
1764     int drawY = YLOG2DEVMAC(y) ;
1765
1766     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1767         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
1768
1769     wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
1770
1771     status = ::ATSUSetTransientFontMatching( atsuLayout , true ) ;
1772     wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
1773
1774     int iAngle = int( angle );
1775     if ( abs(iAngle) > 0 )
1776     {
1777         Fixed atsuAngle = IntToFixed( iAngle ) ;
1778         ATSUAttributeTag atsuTags[] =
1779         {
1780             kATSULineRotationTag ,
1781         } ;
1782         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1783         {
1784             sizeof( Fixed ) ,
1785         } ;
1786         ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1787         {
1788             &atsuAngle ,
1789         } ;
1790         status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
1791             atsuTags, atsuSizes, atsuValues ) ;
1792     }
1793
1794     {
1795         CGContextRef cgContext = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
1796         ATSUAttributeTag atsuTags[] =
1797         {
1798             kATSUCGContextTag ,
1799         } ;
1800         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1801         {
1802             sizeof( CGContextRef ) ,
1803         } ;
1804         ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
1805         {
1806             &cgContext ,
1807         } ;
1808         status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
1809             atsuTags, atsuSizes, atsuValues ) ;
1810     }
1811
1812     ATSUTextMeasurement textBefore, textAfter ;
1813     ATSUTextMeasurement ascent, descent ;
1814
1815     status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1816         &textBefore , &textAfter, &ascent , &descent );
1817
1818     wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
1819
1820     Rect rect ;
1821
1822     if ( m_backgroundMode == wxSOLID )
1823     {
1824         wxGraphicPath* path = m_graphicContext->CreatePath() ;
1825         path->MoveToPoint( drawX , drawY ) ;
1826         path->AddLineToPoint(
1827             (int) (drawX + sin(angle / RAD2DEG) * FixedToInt(ascent + descent)) ,
1828             (int) (drawY + cos(angle / RAD2DEG) * FixedToInt(ascent + descent)) ) ;
1829         path->AddLineToPoint(
1830             (int) (drawX + sin(angle / RAD2DEG) * FixedToInt(ascent + descent ) + cos(angle / RAD2DEG) * FixedToInt(textAfter)) ,
1831             (int) (drawY + cos(angle / RAD2DEG) * FixedToInt(ascent + descent) - sin(angle / RAD2DEG) * FixedToInt(textAfter)) ) ;
1832         path->AddLineToPoint(
1833             (int) (drawX + cos(angle / RAD2DEG) * FixedToInt(textAfter)) ,
1834             (int) (drawY - sin(angle / RAD2DEG) * FixedToInt(textAfter)) ) ;
1835
1836         m_graphicContext->FillPath( path , m_textBackgroundColour ) ;
1837         delete path ;
1838     }
1839
1840     drawX += (int)(sin(angle / RAD2DEG) * FixedToInt(ascent));
1841     drawY += (int)(cos(angle / RAD2DEG) * FixedToInt(ascent));
1842
1843     status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1844         IntToFixed(drawX) , IntToFixed(drawY) , &rect );
1845     wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
1846
1847     CGContextSaveGState(((wxMacCGContext*)(m_graphicContext))->GetNativeContext());
1848     CGContextTranslateCTM(((wxMacCGContext*)(m_graphicContext))->GetNativeContext(), drawX, drawY);
1849     CGContextScaleCTM(((wxMacCGContext*)(m_graphicContext))->GetNativeContext(), 1, -1);
1850     status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1851         IntToFixed(0) , IntToFixed(0) );
1852
1853     wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
1854
1855     CGContextRestoreGState( ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ) ;
1856
1857     CalcBoundingBox(XDEV2LOG(rect.left), YDEV2LOG(rect.top) );
1858     CalcBoundingBox(XDEV2LOG(rect.right), YDEV2LOG(rect.bottom) );
1859
1860     ::ATSUDisposeTextLayout(atsuLayout);
1861
1862 #if SIZEOF_WCHAR_T == 4
1863     free( ubuf ) ;
1864 #endif
1865 }
1866
1867 void wxDC::DoDrawText(const wxString& strtext, wxCoord x, wxCoord y)
1868 {
1869     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoDrawText - invalid DC") );
1870
1871     DoDrawRotatedText( strtext , x , y , 0.0 ) ;
1872 }
1873
1874 bool wxDC::CanGetTextExtent() const
1875 {
1876     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::CanGetTextExtent - invalid DC") );
1877
1878     return true ;
1879 }
1880
1881 void wxDC::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *height,
1882                             wxCoord *descent, wxCoord *externalLeading ,
1883                             wxFont *theFont ) const
1884 {
1885     wxCHECK_RET( Ok(), wxT("wxDC(cg)::DoGetTextExtent - invalid DC") );
1886
1887     wxFont formerFont = m_font ;
1888     if ( theFont )
1889     {
1890         // work around the const-ness
1891         *((wxFont*)(&m_font)) = *theFont ;
1892         MacInstallFont() ;
1893     }
1894
1895     if ( str.empty() )
1896         return ;
1897
1898     wxCHECK_RET( m_macATSUIStyle != NULL, wxT("wxDC(cg)::DoGetTextExtent - no valid font set") ) ;
1899
1900     OSStatus status = noErr ;
1901     ATSUTextLayout atsuLayout ;
1902     UniCharCount chars = str.length() ;
1903     UniChar* ubuf = NULL ;
1904
1905 #if SIZEOF_WCHAR_T == 4
1906     wxMBConvUTF16 converter ;
1907 #if wxUSE_UNICODE
1908     size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 ) ;
1909     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1910     converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 ) ;
1911 #else
1912     const wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1913     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
1914     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1915     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
1916 #endif
1917     chars = unicharlen / 2 ;
1918 #else
1919 #if wxUSE_UNICODE
1920     ubuf = (UniChar*) str.wc_str() ;
1921 #else
1922     wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
1923     chars = wxWcslen( wchar.data() ) ;
1924     ubuf = (UniChar*) wchar.data() ;
1925 #endif
1926 #endif
1927
1928     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
1929         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
1930
1931     wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
1932
1933     ATSUTextMeasurement textBefore, textAfter ;
1934     ATSUTextMeasurement textAscent, textDescent ;
1935
1936     status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
1937         &textBefore , &textAfter, &textAscent , &textDescent );
1938
1939     if ( height )
1940         *height = YDEV2LOGREL( FixedToInt(textAscent + textDescent) ) ;
1941     if ( descent )
1942         *descent =YDEV2LOGREL( FixedToInt(textDescent) );
1943     if ( externalLeading )
1944         *externalLeading = 0 ;
1945     if ( width )
1946         *width = XDEV2LOGREL( FixedToInt(textAfter - textBefore) ) ;
1947
1948     ::ATSUDisposeTextLayout(atsuLayout);
1949
1950 #if SIZEOF_WCHAR_T == 4
1951     free( ubuf ) ;
1952 #endif
1953
1954     if ( theFont )
1955     {
1956         // work around the constness
1957         *((wxFont*)(&m_font)) = formerFont ;
1958         MacInstallFont() ;
1959     }
1960 }
1961
1962 bool wxDC::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
1963 {
1964     wxCHECK_MSG( Ok(), false, wxT("wxDC(cg)::DoGetPartialTextExtents - invalid DC") );
1965
1966     widths.Empty();
1967     widths.Add(0, text.length());
1968
1969     if (text.empty())
1970         return false;
1971
1972     ATSUTextLayout atsuLayout ;
1973     UniCharCount chars = text.length() ;
1974     UniChar* ubuf = NULL ;
1975
1976 #if SIZEOF_WCHAR_T == 4
1977     wxMBConvUTF16 converter ;
1978 #if wxUSE_UNICODE
1979     size_t unicharlen = converter.WC2MB( NULL , text.wc_str() , 0 ) ;
1980     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1981     converter.WC2MB( (char*) ubuf , text.wc_str(), unicharlen + 2 ) ;
1982 #else
1983     const wxWCharBuffer wchar = text.wc_str( wxConvLocal ) ;
1984     size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
1985     ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
1986     converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 ) ;
1987 #endif
1988     chars = unicharlen / 2 ;
1989 #else
1990 #if wxUSE_UNICODE
1991     ubuf = (UniChar*) text.wc_str() ;
1992 #else
1993     wxWCharBuffer wchar = text.wc_str( wxConvLocal ) ;
1994     chars = wxWcslen( wchar.data() ) ;
1995     ubuf = (UniChar*) wchar.data() ;
1996 #endif
1997 #endif
1998
1999     OSStatus status;
2000     status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
2001         &chars , (ATSUStyle*) &m_macATSUIStyle , &atsuLayout ) ;
2002
2003     for ( int pos = 0; pos < (int)chars; pos ++ )
2004     {
2005         unsigned long actualNumberOfBounds = 0;
2006         ATSTrapezoid glyphBounds;
2007
2008         // We get a single bound, since the text should only require one. If it requires more, there is an issue
2009         OSStatus result;
2010         result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
2011             kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
2012         if (result != noErr || actualNumberOfBounds != 1 )
2013             return false;
2014
2015         widths[pos] = XDEV2LOGREL(FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x ));
2016         //unsigned char uch = s[i];
2017     }
2018
2019     ::ATSUDisposeTextLayout(atsuLayout);
2020     return true;
2021 }
2022
2023 wxCoord wxDC::GetCharWidth(void) const
2024 {
2025     wxCoord width ;
2026     DoGetTextExtent( wxT("g") , &width , NULL , NULL , NULL , NULL ) ;
2027
2028     return width ;
2029 }
2030
2031 wxCoord wxDC::GetCharHeight(void) const
2032 {
2033     wxCoord height ;
2034     DoGetTextExtent( wxT("g") , NULL , &height , NULL , NULL , NULL ) ;
2035
2036     return height ;
2037 }
2038
2039 void wxDC::Clear(void)
2040 {
2041     wxCHECK_RET( Ok(), wxT("wxDC(cg)::Clear - invalid DC") );
2042
2043     if (m_backgroundBrush.Ok() && m_backgroundBrush.GetStyle() != wxTRANSPARENT)
2044     {
2045         HIRect rect = CGRectMake( -10000 , -10000 , 20000 , 20000 ) ;
2046         CGContextRef cg = ((wxMacCGContext*)(m_graphicContext))->GetNativeContext() ;
2047         switch ( m_backgroundBrush.MacGetBrushKind() )
2048         {
2049             case kwxMacBrushTheme :
2050                 {
2051 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
2052                     if ( HIThemeSetFill != 0 )
2053                     {
2054                         HIThemeSetFill( m_backgroundBrush.MacGetTheme(), NULL, cg, kHIThemeOrientationNormal );
2055                         CGContextFillRect(cg, rect);
2056
2057                     }
2058                     else
2059 #endif
2060                     {
2061                         RGBColor color;
2062                         GetThemeBrushAsColor( m_backgroundBrush.MacGetTheme(), 32, true, &color );
2063                         CGContextSetRGBFillColor( cg, (CGFloat) color.red / 65536,
2064                             (CGFloat) color.green / 65536, (CGFloat) color.blue / 65536, 1 );
2065                             CGContextFillRect( cg, rect );
2066                     }
2067
2068                     // reset to normal value
2069                     RGBColor col = MAC_WXCOLORREF( GetBrush().GetColour().GetPixel() ) ;
2070                     CGContextSetRGBFillColor( cg, col.red / 65536.0, col.green / 65536.0, col.blue / 65536.0, 1.0 );
2071                 }
2072                 break ;
2073
2074             case kwxMacBrushThemeBackground :
2075                 {
2076                     wxFAIL_MSG( wxT("There shouldn't be theme backgrounds under Quartz") ) ;
2077
2078 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_3
2079                     if ( UMAGetSystemVersion() >= 0x1030 )
2080                     {
2081                         HIThemeBackgroundDrawInfo drawInfo ;
2082                         drawInfo.version = 0 ;
2083                         drawInfo.state = kThemeStateActive ;
2084                         drawInfo.kind = m_backgroundBrush.MacGetThemeBackground( NULL ) ;
2085                         if ( drawInfo.kind == kThemeBackgroundMetal )
2086                         {
2087                             HIThemeDrawBackground( &rect, &drawInfo, cg, kHIThemeOrientationNormal ) ;
2088                             HIThemeApplyBackground( &rect, &drawInfo, cg, kHIThemeOrientationNormal ) ;
2089                         }
2090                     }
2091 #endif
2092                 }
2093                 break ;
2094
2095             case kwxMacBrushColour :
2096                 {
2097                     // FIXME: doesn't correctly render stippled brushes !!
2098                     // FIXME: should this be replaced by ::SetBrush() ??
2099
2100                     RGBColor col = MAC_WXCOLORREF( m_backgroundBrush.GetColour().GetPixel()) ;
2101                     CGContextSetRGBFillColor( cg , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
2102                     CGContextFillRect(cg, rect);
2103
2104                     // reset to normal value
2105                     col = MAC_WXCOLORREF( GetBrush().GetColour().GetPixel() ) ;
2106                     CGContextSetRGBFillColor( cg , col.red / 65536.0 , col.green / 65536.0 , col.blue / 65536.0 , 1.0 ) ;
2107                 }
2108                 break ;
2109
2110             default :
2111                 wxFAIL_MSG( wxT("unknown brush kind") ) ;
2112                 break ;
2113         }
2114     }
2115 }
2116
2117 void wxDC::MacInstallFont() const
2118 {
2119     wxCHECK_RET( Ok(), wxT("wxDC(cg)::MacInstallFont - invalid DC") );
2120
2121     if ( m_macATSUIStyle )
2122     {
2123         ::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
2124         m_macATSUIStyle = NULL ;
2125     }
2126
2127     if ( m_font.Ok() )
2128     {
2129         OSStatus status ;
2130
2131         status = ATSUCreateAndCopyStyle( (ATSUStyle) m_font.MacGetATSUStyle() , (ATSUStyle*) &m_macATSUIStyle ) ;
2132
2133         wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") ) ;
2134
2135         Fixed atsuSize = IntToFixed( int(m_scaleY * m_font.MacGetFontSize()) ) ;
2136         RGBColor atsuColor = MAC_WXCOLORREF( m_textForegroundColour.GetPixel() ) ;
2137         ATSUAttributeTag atsuTags[] =
2138         {
2139                 kATSUSizeTag ,
2140                 kATSUColorTag ,
2141         } ;
2142         ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2143         {
2144                 sizeof( Fixed ) ,
2145                 sizeof( RGBColor ) ,
2146         } ;
2147         ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
2148         {
2149                 &atsuSize ,
2150                 &atsuColor ,
2151         } ;
2152
2153         status = ::ATSUSetAttributes(
2154             (ATSUStyle)m_macATSUIStyle, sizeof(atsuTags) / sizeof(ATSUAttributeTag) ,
2155             atsuTags, atsuSizes, atsuValues);
2156
2157         wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") ) ;
2158     }
2159 }
2160
2161 #pragma mark -
2162
2163 // ---------------------------------------------------------------------------
2164 // coordinates transformations
2165 // ---------------------------------------------------------------------------
2166
2167 wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
2168 {
2169     return ((wxDC *)this)->XDEV2LOG(x);
2170 }
2171
2172 wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
2173 {
2174     return ((wxDC *)this)->YDEV2LOG(y);
2175 }
2176
2177 wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
2178 {
2179     return ((wxDC *)this)->XDEV2LOGREL(x);
2180 }
2181
2182 wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
2183 {
2184     return ((wxDC *)this)->YDEV2LOGREL(y);
2185 }
2186
2187 wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
2188 {
2189     return ((wxDC *)this)->XLOG2DEV(x);
2190 }
2191
2192 wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
2193 {
2194     return ((wxDC *)this)->YLOG2DEV(y);
2195 }
2196
2197 wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
2198 {
2199     return ((wxDC *)this)->XLOG2DEVREL(x);
2200 }
2201
2202 wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
2203 {
2204     return ((wxDC *)this)->YLOG2DEVREL(y);
2205 }
2206
2207 #endif // wxMAC_USE_CORE_GRAPHICS