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