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