src/mac/carbon/bitmap.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bitmap.cpp
   3 // Purpose:     wxBitmap
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "bitmapbase.h"
  14 #pragma implementation "bitmap.h"
  15 #endif
  16
  17 #include "wx/defs.h"
  18
  19 #include "wx/bitmap.h"
  20 #include "wx/icon.h"
  21 #include "wx/log.h"
  22 #include "wx/image.h"
  23 #include "wx/xpmdecod.h"
  24
  25 #if !USE_SHARED_LIBRARIES
  26 IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject)
  27 IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
  28 IMPLEMENT_ABSTRACT_CLASS(wxBitmapBase , wxGDIObject )
  29 IMPLEMENT_ABSTRACT_CLASS(wxBitmapHandlerBase, wxObject )
  30 #endif
  31
  32 #ifdef __DARWIN__
  33     #include <ApplicationServices/ApplicationServices.h>
  34 #else
  35     #include <PictUtils.h>
  36 #endif
  37
  38 #include "wx/mac/uma.h"
  39
  40 CTabHandle wxMacCreateColorTable( int numColors )
  41 {
  42         CTabHandle newColors; /* Handle to the new color table */
  43
  44         /* Allocate memory for the color table */
  45         newColors = (CTabHandle)NewHandleClear( sizeof (ColorTable) +
  46         sizeof (ColorSpec) * (numColors - 1) );
  47         if (newColors != nil)
  48         {
  49                 /* Initialize the fields */
  50                 (**newColors).ctSeed = GetCTSeed();
  51                 (**newColors).ctFlags = 0;
  52                 (**newColors).ctSize = numColors - 1;
  53                 /* Initialize the table of colors */
  54         }
  55         return newColors ;
  56 }
  57
  58 void wxMacDestroyColorTable( CTabHandle colors )
  59 {
  60         DisposeHandle( (Handle) colors ) ;
  61 }
  62
  63 void wxMacSetColorTableEntry( CTabHandle newColors , int index , int red , int green ,  int blue )
  64 {
  65         (**newColors).ctTable[index].value = index;
  66         (**newColors).ctTable[index].rgb.red = 0 ;// someRedValue;
  67         (**newColors).ctTable[index].rgb.green = 0 ; // someGreenValue;
  68         (**newColors).ctTable[index].rgb.blue = 0 ; // someBlueValue;
  69 }
  70
  71 GWorldPtr wxMacCreateGWorld( int width , int height , int depth )
  72 {
  73         OSErr err = noErr ;
  74         GWorldPtr port ;
  75         Rect rect = { 0 , 0 , height , width } ;
  76
  77         if ( depth < 0 )
  78         {
  79                 depth = wxDisplayDepth() ;
  80         }
  81
  82         err = NewGWorld( &port , depth , &rect , NULL , NULL , 0 ) ;
  83         if ( err == noErr )
  84         {
  85                 return port ;
  86         }
  87         return NULL ;
  88 }
  89
  90 void wxMacDestroyGWorld( GWorldPtr gw )
  91 {
  92         if ( gw )
  93                 DisposeGWorld( gw ) ;
  94 }
  95
  96 PicHandle wxMacCreatePict(GWorldPtr wp, GWorldPtr mask)
  97 {
  98    CGrafPtr    origPort ;
  99    GDHandle    origDev ;
 100
 101    PicHandle      pict;          // this is the Picture we give back
 102
 103    RGBColor    gray = { 0xCCCC ,0xCCCC , 0xCCCC } ;
 104    RGBColor    white = { 0xffff ,0xffff , 0xffff } ;
 105    RGBColor    black = { 0x0000 ,0x0000 , 0x0000 } ;
 106
 107    unsigned char *maskimage = NULL ;
 108    Rect portRect ;
 109    GetPortBounds( wp , &portRect ) ;
 110    int width = portRect.right - portRect.left ;
 111    int height = portRect.bottom - portRect.top ;
 112
 113    LockPixels( GetGWorldPixMap( wp ) ) ;
 114    GetGWorld( &origPort , &origDev ) ;
 115
 116    if ( mask )
 117    {
 118       maskimage = (unsigned char*) malloc( width * height ) ;
 119       SetGWorld( mask , NULL ) ;
 120       LockPixels( GetGWorldPixMap( mask ) ) ;
 121       for ( int y = 0 ; y < height ; y++ )
 122       {
 123          for( int x = 0 ; x < width ; x++ )
 124          {
 125             RGBColor col ;
 126
 127             GetCPixel( x + portRect.left , y + portRect.top , &col ) ;
 128             maskimage[y*width + x] = ( col.red == 0 ) ; // for monochrome masks
 129          }
 130       }
 131       UnlockPixels( GetGWorldPixMap( mask ) ) ;
 132    }
 133
 134    SetGWorld( wp , NULL ) ;
 135
 136    pict = OpenPicture(&portRect);   // open a picture, this disables drawing
 137    if(!pict)
 138       return NULL;
 139
 140    if ( maskimage )
 141    {
 142       RGBForeColor( &black ) ;
 143       RGBBackColor( &white ) ;
 144       PenMode(transparent);
 145
 146       for ( int y = 0 ; y < height ; ++y )
 147       {
 148          for( int x = 0 ; x < width ; ++x )
 149          {
 150             if ( maskimage[y*width + x] )
 151             {
 152                RGBColor col ;
 153
 154                GetCPixel( x + portRect.left , y + portRect.top , &col ) ;
 155                SetCPixel( x + portRect.left , y + portRect.top , &col ) ;
 156             }
 157             else {
 158                 // With transparency set this sets a blank pixel not a white one
 159                 SetCPixel( x + portRect.left , y + portRect.top , &white);
 160             }
 161          }
 162       }
 163       free( maskimage ) ;
 164       maskimage = NULL ;
 165    }
 166    else
 167    {
 168       RGBBackColor( &gray ) ;
 169       EraseRect(&portRect);
 170       RGBForeColor( &black ) ;
 171       RGBBackColor( &white ) ;
 172
 173       CopyBits(GetPortBitMapForCopyBits(wp), /* src PixMap - we copy image over
 174                                               * itself - */
 175                GetPortBitMapForCopyBits(wp), //  dst PixMap - no drawing occurs
 176                &portRect,    // srcRect - it will be recorded and compressed -
 177                &portRect,    // dstRect - into the picture that is open -
 178                srcCopy,NULL); // copyMode and no clip region
 179    }
 180    ClosePicture();                  // We are done recording the picture
 181    UnlockPixels( GetGWorldPixMap( wp ) ) ;
 182    SetGWorld( origPort , origDev ) ;
 183
 184    return pict;                  // return our groovy pict handle
 185 }
 186
 187 wxBitmapRefData::wxBitmapRefData()
 188 {
 189     m_ok = FALSE;
 190     m_width = 0;
 191     m_height = 0;
 192     m_depth = 0;
 193     m_quality = 0;
 194     m_numColors = 0;
 195     m_bitmapMask = NULL;
 196     m_hBitmap = NULL ;
 197     m_hPict = NULL ;
 198     m_hIcon = NULL ;
 199     m_bitmapType = kMacBitmapTypeUnknownType ;
 200 }
 201
 202 wxBitmapRefData::~wxBitmapRefData()
 203 {
 204         switch (m_bitmapType)
 205         {
 206                 case kMacBitmapTypePict :
 207                         {
 208                                 if ( m_hPict )
 209                                 {
 210                                         KillPicture( m_hPict ) ;
 211                                         m_hPict = NULL ;
 212                                 }
 213                         }
 214                         break ;
 215                 case kMacBitmapTypeGrafWorld :
 216                         {
 217                                 if ( m_hBitmap )
 218                                 {
 219                                         wxMacDestroyGWorld( m_hBitmap ) ;
 220                                         m_hBitmap = NULL ;
 221                                 }
 222                         }
 223                         break ;
 224                 case kMacBitmapTypeIcon :
 225                 if ( m_hIcon )
 226                 {
 227                         DisposeCIcon( m_hIcon ) ;
 228                         m_hIcon = NULL ;
 229                 }
 230
 231                 default :
 232                         // unkown type ?
 233                         break ;
 234         }
 235
 236   if (m_bitmapMask)
 237   {
 238     delete m_bitmapMask;
 239     m_bitmapMask = NULL;
 240   }
 241 }
 242
 243 wxList wxBitmapBase::sm_handlers;
 244
 245
 246 bool wxBitmap::CopyFromIcon(const wxIcon& icon)
 247 {
 248     Ref(icon) ;
 249     return true;
 250 }
 251
 252 wxBitmap::wxBitmap()
 253 {
 254     m_refData = NULL;
 255
 256     if ( wxTheBitmapList )
 257         wxTheBitmapList->AddBitmap(this);
 258 }
 259
 260 wxBitmap::~wxBitmap()
 261 {
 262     if (wxTheBitmapList)
 263         wxTheBitmapList->DeleteObject(this);
 264 }
 265
 266 wxBitmap::wxBitmap(const char bits[], int the_width, int the_height, int no_bits)
 267 {
 268     m_refData = new wxBitmapRefData;
 269
 270     M_BITMAPDATA->m_width = the_width ;
 271     M_BITMAPDATA->m_height = the_height ;
 272     M_BITMAPDATA->m_depth = no_bits ;
 273     M_BITMAPDATA->m_numColors = 0;
 274     if ( no_bits == 1 )
 275     {
 276         M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
 277         M_BITMAPDATA->m_hBitmap = wxMacCreateGWorld( the_width , the_height , no_bits ) ;
 278         M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_hBitmap != NULL ) ;
 279
 280         CGrafPtr        origPort ;
 281         GDHandle        origDevice ;
 282
 283         GetGWorld( &origPort , &origDevice ) ;
 284         SetGWorld( M_BITMAPDATA->m_hBitmap , NULL ) ;
 285         LockPixels( GetGWorldPixMap( M_BITMAPDATA->m_hBitmap ) ) ;
 286
 287         // bits is a char array
 288
 289         unsigned char* linestart = (unsigned char*) bits ;
 290         int linesize = ( the_width / (sizeof(unsigned char) * 8)) ;
 291         if ( the_width % (sizeof(unsigned char) * 8) ) {
 292             linesize += sizeof(unsigned char);
 293         }
 294
 295         RGBColor colors[2] = {
 296             { 0xFFFF , 0xFFFF , 0xFFFF } ,
 297             { 0, 0 , 0 }
 298         } ;
 299
 300         for ( int y = 0 ; y < the_height ; ++y , linestart += linesize )
 301         {
 302             for ( int x = 0 ; x < the_width ; ++x )
 303             {
 304                 int index = x / 8 ;
 305                 int bit = x % 8 ;
 306                 int mask = 1 << bit ;
 307                 if ( linestart[index] & mask )
 308                 {
 309                     SetCPixel( x , y , &colors[1] ) ;
 310                 }
 311                 else
 312                 {
 313                     SetCPixel( x , y , &colors[0] ) ;
 314                 }
 315             }
 316         }
 317         UnlockPixels( GetGWorldPixMap( M_BITMAPDATA->m_hBitmap ) ) ;
 318
 319         SetGWorld( origPort , origDevice ) ;
 320     }
 321     else
 322     {
 323         wxFAIL_MSG(wxT("multicolor BITMAPs not yet implemented"));
 324     }
 325
 326     if ( wxTheBitmapList ) {
 327         wxTheBitmapList->AddBitmap(this);
 328     }
 329 }
 330
 331 wxBitmap::wxBitmap(int w, int h, int d)
 332 {
 333     (void)Create(w, h, d);
 334
 335     if ( wxTheBitmapList )
 336         wxTheBitmapList->AddBitmap(this);
 337 }
 338
 339 wxBitmap::wxBitmap(void *data, wxBitmapType type, int width, int height, int depth)
 340 {
 341     (void) Create(data, type, width, height, depth);
 342
 343     if ( wxTheBitmapList )
 344         wxTheBitmapList->AddBitmap(this);
 345 }
 346
 347 wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type)
 348 {
 349     LoadFile(filename, type);
 350
 351     if ( wxTheBitmapList )
 352         wxTheBitmapList->AddBitmap(this);
 353 }
 354
 355 bool wxBitmap::CreateFromXpm(const char **bits)
 356 {
 357     wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") )
 358     wxXPMDecoder decoder;
 359     wxImage img = decoder.ReadData(bits);
 360     wxCHECK_MSG( img.Ok(), FALSE, wxT("invalid bitmap data") )
 361     *this = wxBitmap(img);
 362     if ( wxTheBitmapList ) wxTheBitmapList->AddBitmap(this);
 363     return TRUE;
 364 }
 365
 366 wxBitmap::wxBitmap(const char **bits)
 367 {
 368     (void) CreateFromXpm(bits);
 369 }
 370
 371 wxBitmap::wxBitmap(char **bits)
 372 {
 373     (void) CreateFromXpm((const char **)bits);
 374 }
 375
 376 wxBitmap wxBitmap::GetSubBitmap(const wxRect &rect) const
 377 {
 378    wxCHECK_MSG( Ok() &&
 379                 (rect.x >= 0) && (rect.y >= 0) &&
 380                 (rect.x+rect.width <= GetWidth()) &&
 381                 (rect.y+rect.height <= GetHeight()),
 382                 wxNullBitmap, wxT("invalid bitmap or bitmap region") );
 383
 384
 385    wxBitmap ret( rect.width, rect.height, GetDepth() );
 386    wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
 387
 388    WXHBITMAP origPort;
 389    GDHandle  origDevice;
 390
 391    GetGWorld( &origPort, &origDevice );
 392
 393    // Update the subbitmaps reference data
 394    wxBitmapRefData *ref = (wxBitmapRefData *)ret.GetRefData();
 395
 396    ref->m_numColors     = M_BITMAPDATA->m_numColors;
 397    ref->m_bitmapPalette = M_BITMAPDATA->m_bitmapPalette;
 398    ref->m_bitmapType    = M_BITMAPDATA->m_bitmapType;
 399
 400    // Copy sub region of this bitmap
 401    if(M_BITMAPDATA->m_bitmapType == kMacBitmapTypePict)
 402    {
 403        printf("GetSubBitmap:  Copy a region of a Pict structure - TODO\n");
 404    }
 405    else if(M_BITMAPDATA->m_bitmapType == kMacBitmapTypeGrafWorld)
 406    {
 407        // Copy mask
 408        if(GetMask())
 409        {
 410            WXHBITMAP submask, mask;
 411            RGBColor  color;
 412
 413            mask = GetMask()->GetMaskBitmap();
 414            submask = wxMacCreateGWorld(rect.width, rect.height, 1);
 415            LockPixels(GetGWorldPixMap(mask));
 416            LockPixels(GetGWorldPixMap(submask));
 417
 418            for(int yy = 0; yy < rect.height; yy++)
 419            {
 420                for(int xx = 0; xx < rect.width; xx++)
 421                {
 422                    SetGWorld(mask, NULL);
 423                    GetCPixel(rect.x + xx, rect.y + yy, &color);
 424                    SetGWorld(submask, NULL);
 425                    SetCPixel(xx,yy, &color);
 426                }
 427            }
 428            UnlockPixels(GetGWorldPixMap(mask));
 429            UnlockPixels(GetGWorldPixMap(submask));
 430            ref->m_bitmapMask = new wxMask;
 431            ref->m_bitmapMask->SetMaskBitmap(submask);
 432        }
 433
 434        // Copy bitmap
 435        if(GetHBITMAP())
 436        {
 437            WXHBITMAP subbitmap, bitmap;
 438            RGBColor  color;
 439
 440            bitmap = GetHBITMAP();
 441            subbitmap = wxMacCreateGWorld(rect.width, rect.height, GetDepth());
 442            LockPixels(GetGWorldPixMap(bitmap));
 443            LockPixels(GetGWorldPixMap(subbitmap));
 444
 445            for(int yy = 0; yy < rect.height; yy++)
 446            {
 447                for(int xx = 0; xx < rect.width; xx++)
 448                {
 449                    SetGWorld(bitmap, NULL);
 450                    GetCPixel(rect.x + xx, rect.y + yy, &color);
 451                    SetGWorld(subbitmap, NULL);
 452                    SetCPixel(xx, yy, &color);
 453                }
 454            }
 455            UnlockPixels(GetGWorldPixMap(bitmap));
 456            UnlockPixels(GetGWorldPixMap(subbitmap));
 457            ret.SetHBITMAP(subbitmap);
 458        }
 459    }
 460    SetGWorld( origPort, origDevice );
 461
 462    return ret;
 463 }
 464
 465 bool wxBitmap::Create(int w, int h, int d)
 466 {
 467     UnRef();
 468
 469     m_refData = new wxBitmapRefData;
 470
 471     M_BITMAPDATA->m_width = w;
 472     M_BITMAPDATA->m_height = h;
 473     M_BITMAPDATA->m_depth = d;
 474
 475     M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
 476     M_BITMAPDATA->m_hBitmap = wxMacCreateGWorld( w , h , d ) ;
 477     M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_hBitmap != NULL ) ;
 478     return M_BITMAPDATA->m_ok;
 479 }
 480
 481 int wxBitmap::GetBitmapType() const
 482 {
 483    wxCHECK_MSG( Ok(), kMacBitmapTypeUnknownType, wxT("invalid bitmap") );
 484
 485    return M_BITMAPDATA->m_bitmapType;
 486 }
 487
 488 void wxBitmap::SetHBITMAP(WXHBITMAP bmp)
 489 {
 490     M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
 491     M_BITMAPDATA->m_hBitmap = bmp ;
 492         M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_hBitmap != NULL ) ;
 493 }
 494
 495 bool wxBitmap::LoadFile(const wxString& filename, wxBitmapType type)
 496 {
 497     UnRef();
 498
 499     wxBitmapHandler *handler = FindHandler(type);
 500
 501     if ( handler )
 502     {
 503         m_refData = new wxBitmapRefData;
 504
 505         return handler->LoadFile(this, filename, type, -1, -1);
 506     }
 507     else
 508     {
 509         wxImage loadimage(filename, type);
 510         if (loadimage.Ok()) {
 511             *this = loadimage;
 512             return true;
 513         }
 514     }
 515     wxLogWarning("no bitmap handler for type %d defined.", type);
 516     return false;
 517 }
 518
 519 bool wxBitmap::Create(void *data, wxBitmapType type, int width, int height, int depth)
 520 {
 521     UnRef();
 522
 523     m_refData = new wxBitmapRefData;
 524
 525     wxBitmapHandler *handler = FindHandler(type);
 526
 527     if ( handler == NULL ) {
 528         wxLogWarning("no bitmap handler for type %d defined.", type);
 529
 530         return FALSE;
 531     }
 532
 533     return handler->Create(this, data, type, width, height, depth);
 534 }
 535
 536 wxBitmap::wxBitmap(const wxImage& image, int depth)
 537 {
 538     wxCHECK_RET( image.Ok(), wxT("invalid image") )
 539     wxCHECK_RET( depth == -1, wxT("invalid bitmap depth") )
 540
 541     m_refData = new wxBitmapRefData();
 542
 543     if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 544
 545     // width and height of the device-dependent bitmap
 546     int width = image.GetWidth();
 547     int height = image.GetHeight();
 548
 549     // Create picture
 550
 551     Create( width , height , 32 ) ;
 552
 553     CGrafPtr origPort ;
 554     GDHandle origDevice ;
 555
 556     PixMapHandle pixMap = GetGWorldPixMap(GetHBITMAP()) ;
 557     LockPixels( pixMap );
 558
 559     GetGWorld( &origPort , &origDevice ) ;
 560     SetGWorld( GetHBITMAP() , NULL ) ;
 561
 562     // Render image
 563     RGBColor colorRGB ;
 564
 565     register unsigned char* data = image.GetData();
 566     char* destinationBase = GetPixBaseAddr( pixMap );
 567     register unsigned char* destination = (unsigned char*) destinationBase ;
 568     for (int y = 0; y < height; y++)
 569     {
 570         for (int x = 0; x < width; x++)
 571         {
 572             *destination++ = 0 ;
 573             *destination++ = *data++ ;
 574             *destination++ = *data++ ;
 575             *destination++ = *data++ ;
 576         }
 577         destinationBase += ((**pixMap).rowBytes & 0x7fff);
 578         destination = (unsigned char*) destinationBase ;
 579     }
 580     if ( image.HasMask() )
 581     {
 582       data = image.GetData();
 583
 584       wxColour maskcolor(image.GetMaskRed(), image.GetMaskGreen(), image.GetMaskBlue());
 585       RGBColor white = { 0xffff, 0xffff, 0xffff };
 586       RGBColor black = { 0     , 0     , 0      };
 587       wxBitmap maskBitmap ;
 588
 589       maskBitmap.Create( width, height, 1);
 590       LockPixels( GetGWorldPixMap(maskBitmap.GetHBITMAP()) );
 591       SetGWorld(maskBitmap.GetHBITMAP(), NULL);
 592
 593       for (int y = 0; y < height; y++)
 594       {
 595           for (int x = 0; x < width; x++)
 596           {
 597               if ( data[0] == image.GetMaskRed() && data[1] == image.GetMaskGreen() && data[2] == image.GetMaskBlue() )
 598               {
 599                 SetCPixel(x,y, &white);
 600               }
 601               else {
 602                       SetCPixel(x,y, &black);
 603               }
 604               data += 3 ;
 605           }
 606       }  // for height
 607       SetGWorld(GetHBITMAP(), NULL);
 608       SetMask(new wxMask( maskBitmap ));
 609       UnlockPixels( GetGWorldPixMap(maskBitmap.GetHBITMAP()) );
 610     }
 611
 612     UnlockPixels( GetGWorldPixMap(GetHBITMAP()) );
 613     SetGWorld( origPort, origDevice );
 614 }
 615
 616 wxImage wxBitmap::ConvertToImage() const
 617 {
 618     wxImage image;
 619
 620     wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
 621
 622     // create an wxImage object
 623     int width = GetWidth();
 624     int height = GetHeight();
 625     image.Create( width, height );
 626
 627     unsigned char *data = image.GetData();
 628
 629     wxCHECK_MSG( data, wxNullImage, wxT("Could not allocate data for image") );
 630
 631     WXHBITMAP origPort;
 632     GDHandle  origDevice;
 633     int      index;
 634     RGBColor color;
 635     // background color set to RGB(16,16,16) in consistent with wxGTK
 636     unsigned char mask_r=16, mask_g=16, mask_b=16;
 637     SInt16   r,g,b;
 638     wxMask  *mask = GetMask();
 639
 640     GetGWorld( &origPort, &origDevice );
 641     LockPixels(GetGWorldPixMap(GetHBITMAP()));
 642     SetGWorld( GetHBITMAP(), NULL);
 643
 644     // Copy data into image
 645     index = 0;
 646     for (int yy = 0; yy < height; yy++)
 647     {
 648         for (int xx = 0; xx < width; xx++)
 649         {
 650             GetCPixel(xx,yy, &color);
 651             r = ((color.red ) >> 8);
 652             g = ((color.green ) >> 8);
 653             b = ((color.blue ) >> 8);
 654             data[index    ] = r;
 655             data[index + 1] = g;
 656             data[index + 2] = b;
 657             if (mask)
 658             {
 659                 if (mask->PointMasked(xx,yy))
 660                 {
 661                     data[index    ] = mask_r;
 662                     data[index + 1] = mask_g;
 663                     data[index + 2] = mask_b;
 664                 }
 665             }
 666             index += 3;
 667         }
 668     }
 669     if (mask)
 670     {
 671         image.SetMaskColour( mask_r, mask_g, mask_b );
 672         image.SetMask( true );
 673     }
 674
 675     // Free resources
 676     UnlockPixels(GetGWorldPixMap(GetHBITMAP()));
 677     SetGWorld(origPort, origDevice);
 678
 679     return image;
 680 }
 681
 682
 683 bool wxBitmap::SaveFile(const wxString& filename, wxBitmapType type,
 684                         const wxPalette *palette) const
 685 {
 686     wxBitmapHandler *handler = FindHandler(type);
 687
 688     if ( handler )
 689     {
 690         return handler->SaveFile(this, filename, type, palette);
 691     }
 692     else
 693     {
 694         wxImage image = ConvertToImage();
 695
 696         return image.SaveFile(filename, type);
 697     }
 698
 699     wxLogWarning("no bitmap handler for type %d defined.", type);
 700     return false;
 701 }
 702
 703 bool wxBitmap::Ok() const
 704 {
 705    return (M_BITMAPDATA && M_BITMAPDATA->m_ok);
 706 }
 707
 708 int wxBitmap::GetHeight() const
 709 {
 710    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 711
 712    return M_BITMAPDATA->m_height;
 713 }
 714
 715 int wxBitmap::GetWidth() const
 716 {
 717    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 718
 719    return M_BITMAPDATA->m_width;
 720 }
 721
 722 int wxBitmap::GetDepth() const
 723 {
 724    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 725
 726    return M_BITMAPDATA->m_depth;
 727 }
 728
 729 int wxBitmap::GetQuality() const
 730 {
 731    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 732
 733    return M_BITMAPDATA->m_quality;
 734 }
 735
 736 wxMask *wxBitmap::GetMask() const
 737 {
 738    wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
 739
 740    return M_BITMAPDATA->m_bitmapMask;
 741 }
 742
 743 void wxBitmap::SetWidth(int w)
 744 {
 745     if (!M_BITMAPDATA)
 746         m_refData = new wxBitmapRefData;
 747
 748     M_BITMAPDATA->m_width = w;
 749 }
 750
 751 void wxBitmap::SetHeight(int h)
 752 {
 753     if (!M_BITMAPDATA)
 754         m_refData = new wxBitmapRefData;
 755
 756     M_BITMAPDATA->m_height = h;
 757 }
 758
 759 void wxBitmap::SetDepth(int d)
 760 {
 761     if (!M_BITMAPDATA)
 762         m_refData = new wxBitmapRefData;
 763
 764     M_BITMAPDATA->m_depth = d;
 765 }
 766
 767 void wxBitmap::SetQuality(int q)
 768 {
 769     if (!M_BITMAPDATA)
 770         m_refData = new wxBitmapRefData;
 771
 772     M_BITMAPDATA->m_quality = q;
 773 }
 774
 775 void wxBitmap::SetOk(bool isOk)
 776 {
 777     if (!M_BITMAPDATA)
 778         m_refData = new wxBitmapRefData;
 779
 780     M_BITMAPDATA->m_ok = isOk;
 781 }
 782
 783 wxPalette *wxBitmap::GetPalette() const
 784 {
 785    wxCHECK_MSG( Ok(), NULL, wxT("Invalid bitmap  GetPalette()") );
 786
 787    return &M_BITMAPDATA->m_bitmapPalette;
 788 }
 789
 790 void wxBitmap::SetPalette(const wxPalette& palette)
 791 {
 792     if (!M_BITMAPDATA)
 793         m_refData = new wxBitmapRefData;
 794
 795     M_BITMAPDATA->m_bitmapPalette = palette ;
 796 }
 797
 798 void wxBitmap::SetMask(wxMask *mask)
 799 {
 800     if (!M_BITMAPDATA)
 801         m_refData = new wxBitmapRefData;
 802
 803     // Remove existing mask if there is one.
 804     if (M_BITMAPDATA->m_bitmapMask)
 805         delete M_BITMAPDATA->m_bitmapMask;
 806
 807     M_BITMAPDATA->m_bitmapMask = mask ;
 808 }
 809
 810 WXHBITMAP wxBitmap::GetHBITMAP() const
 811 {
 812    wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
 813
 814    return M_BITMAPDATA->m_hBitmap;
 815 }
 816
 817 PicHandle wxBitmap::GetPict() const
 818 {
 819    wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
 820
 821    PicHandle picture;       // This is the returned picture
 822
 823    // If bitmap already in Pict format return pointer
 824    if(M_BITMAPDATA->m_bitmapType == kMacBitmapTypePict) {
 825        return M_BITMAPDATA->m_hPict;
 826    }
 827    else if(M_BITMAPDATA->m_bitmapType != kMacBitmapTypeGrafWorld) {
 828        // Invalid bitmap
 829        return NULL;
 830    }
 831
 832    RGBColor  gray = { 0xCCCC ,0xCCCC , 0xCCCC } ;
 833    RGBColor  white = { 0xffff ,0xffff , 0xffff } ;
 834    RGBColor  black = { 0x0000 ,0x0000 , 0x0000 } ;
 835    CGrafPtr  origPort;
 836    GDHandle  origDev ;
 837    wxMask   *mask;
 838    Rect      portRect ;
 839
 840    GetPortBounds( GetHBITMAP() , &portRect ) ;
 841    int width = portRect.right - portRect.left ;
 842    int height = portRect.bottom - portRect.top ;
 843
 844    LockPixels( GetGWorldPixMap( GetHBITMAP() ) ) ;
 845    GetGWorld( &origPort , &origDev ) ;
 846
 847    mask = GetMask();
 848
 849    SetGWorld( GetHBITMAP() , NULL ) ;
 850
 851    picture = OpenPicture(&portRect);   // open a picture, this disables drawing
 852    if(!picture) {
 853        return NULL;
 854    }
 855
 856    if( mask )
 857    {
 858 #ifdef __DARWIN__
 859        RGBColor trans = white;
 860 #else
 861        RGBBackColor( &gray );
 862        EraseRect( &portRect );
 863        RGBColor trans = gray;
 864 #endif
 865        RGBForeColor( &black ) ;
 866        RGBBackColor( &white ) ;
 867        PenMode(transparent);
 868
 869        for ( int y = 0 ; y < height ; ++y )
 870        {
 871            for( int x = 0 ; x < width ; ++x )
 872            {
 873                if ( !mask->PointMasked(x,y) )
 874                {
 875                    RGBColor col ;
 876
 877                    GetCPixel( x + portRect.left , y + portRect.top , &col ) ;
 878                    SetCPixel( x + portRect.left , y + portRect.top , &col ) ;
 879                }
 880                else {
 881                    // With transparency this sets a blank pixel
 882                    SetCPixel( x + portRect.left , y + portRect.top , &trans);
 883                }
 884            }
 885        }
 886    }
 887    else
 888    {
 889        RGBBackColor( &gray ) ;
 890        EraseRect(&portRect);
 891        RGBForeColor( &black ) ;
 892        RGBBackColor( &white ) ;
 893
 894        CopyBits(GetPortBitMapForCopyBits(GetHBITMAP()),
 895                 // src PixMap - we copy image over itself -
 896                 GetPortBitMapForCopyBits(GetHBITMAP()),
 897                 //  dst PixMap - no drawing occurs
 898                 &portRect,    // srcRect - it will be recorded and compressed -
 899                 &portRect,    // dstRect - into the picture that is open -
 900                 srcCopy,NULL); // copyMode and no clip region
 901    }
 902    ClosePicture();                  // We are done recording the picture
 903    UnlockPixels( GetGWorldPixMap( GetHBITMAP() ) ) ;
 904    SetGWorld( origPort , origDev ) ;
 905
 906    return picture;                  // return our groovy pict handle
 907 }
 908
 909 void wxBitmap::AddHandler(wxBitmapHandler *handler)
 910 {
 911     sm_handlers.Append(handler);
 912 }
 913
 914 void wxBitmap::InsertHandler(wxBitmapHandler *handler)
 915 {
 916     sm_handlers.Insert(handler);
 917 }
 918
 919 bool wxBitmap::RemoveHandler(const wxString& name)
 920 {
 921     wxBitmapHandler *handler = FindHandler(name);
 922     if ( handler )
 923     {
 924         sm_handlers.DeleteObject(handler);
 925         return TRUE;
 926     }
 927     else
 928         return FALSE;
 929 }
 930
 931 wxBitmapHandler *wxBitmap::FindHandler(const wxString& name)
 932 {
 933     wxNode *node = sm_handlers.First();
 934     while ( node )
 935     {
 936         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 937         if ( handler->GetName() == name )
 938             return handler;
 939         node = node->Next();
 940     }
 941     return NULL;
 942 }
 943
 944 wxBitmapHandler *wxBitmap::FindHandler(const wxString& extension, wxBitmapType type)
 945 {
 946     wxNode *node = sm_handlers.First();
 947     while ( node )
 948     {
 949         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 950         if ( handler->GetExtension() == extension &&
 951                     (type == -1 || handler->GetType() == type) )
 952             return handler;
 953         node = node->Next();
 954     }
 955     return NULL;
 956 }
 957
 958 wxBitmapHandler *wxBitmap::FindHandler(wxBitmapType type)
 959 {
 960     wxNode *node = sm_handlers.First();
 961     while ( node )
 962     {
 963         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 964         if (handler->GetType() == type)
 965             return handler;
 966         node = node->Next();
 967     }
 968     return NULL;
 969 }
 970
 971 /*
 972  * wxMask
 973  */
 974
 975 wxMask::wxMask()
 976 {
 977     m_maskBitmap = 0;
 978 }
 979
 980 // Construct a mask from a bitmap and a colour indicating
 981 // the transparent area
 982 wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour)
 983 {
 984     m_maskBitmap = 0;
 985     Create(bitmap, colour);
 986 }
 987
 988 // Construct a mask from a bitmap and a palette index indicating
 989 // the transparent area
 990 wxMask::wxMask(const wxBitmap& bitmap, int paletteIndex)
 991 {
 992     m_maskBitmap = 0;
 993     Create(bitmap, paletteIndex);
 994 }
 995
 996 // Construct a mask from a mono bitmap (copies the bitmap).
 997 wxMask::wxMask(const wxBitmap& bitmap)
 998 {
 999     m_maskBitmap = 0;
1000     Create(bitmap);
1001 }
1002
1003 wxMask::~wxMask()
1004 {
1005         if ( m_maskBitmap )
1006         {
1007                 wxMacDestroyGWorld( m_maskBitmap ) ;
1008                 m_maskBitmap = NULL ;
1009         }
1010 }
1011
1012 // Create a mask from a mono bitmap (copies the bitmap).
1013 bool wxMask::Create(const wxBitmap& bitmap)
1014 {
1015    if ( m_maskBitmap )
1016    {
1017        wxMacDestroyGWorld( m_maskBitmap ) ;
1018        m_maskBitmap = NULL ;
1019    }
1020    wxCHECK_MSG( bitmap.GetBitmapType() == kMacBitmapTypeGrafWorld, false,
1021                 wxT("Cannot create mask from this bitmap type (TODO)"));
1022    // other types would require a temporary bitmap. not yet implemented
1023
1024    wxCHECK_MSG( bitmap.Ok(), false, wxT("Invalid bitmap"));
1025
1026    wxCHECK_MSG(bitmap.GetDepth() == 1, false,
1027                wxT("Cannot create mask from colour bitmap"));
1028
1029    m_maskBitmap = wxMacCreateGWorld(bitmap.GetWidth(), bitmap.GetHeight(), 1);
1030    Rect rect = { 0,0, bitmap.GetHeight(), bitmap.GetWidth() };
1031
1032    LockPixels( GetGWorldPixMap(m_maskBitmap) );
1033    LockPixels( GetGWorldPixMap(bitmap.GetHBITMAP()) );
1034    CopyBits(GetPortBitMapForCopyBits(bitmap.GetHBITMAP()),
1035             GetPortBitMapForCopyBits(m_maskBitmap),
1036             &rect, &rect, srcCopy, 0);
1037    UnlockPixels( GetGWorldPixMap(m_maskBitmap) );
1038    UnlockPixels( GetGWorldPixMap(bitmap.GetHBITMAP()) );
1039
1040    return FALSE;
1041 }
1042
1043 // Create a mask from a bitmap and a palette index indicating
1044 // the transparent area
1045 bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex)
1046 {
1047 // TODO
1048     wxCHECK_MSG( 0, false, wxT("Not implemented"));
1049     return FALSE;
1050 }
1051
1052 // Create a mask from a bitmap and a colour indicating
1053 // the transparent area
1054 bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour)
1055 {
1056         if ( m_maskBitmap )
1057         {
1058                 wxMacDestroyGWorld( m_maskBitmap ) ;
1059                 m_maskBitmap = NULL ;
1060         }
1061         wxCHECK_MSG( bitmap.GetBitmapType() == kMacBitmapTypeGrafWorld, false,
1062                  wxT("Cannot create mask from this bitmap type (TODO)"));
1063         // other types would require a temporary bitmap. not yet implemented
1064
1065     wxCHECK_MSG( bitmap.Ok(), false, wxT("Illigal bitmap"));
1066
1067         m_maskBitmap = wxMacCreateGWorld( bitmap.GetWidth() , bitmap.GetHeight() , 1 );
1068         LockPixels( GetGWorldPixMap( m_maskBitmap ) );
1069         LockPixels( GetGWorldPixMap( bitmap.GetHBITMAP() ) );
1070         RGBColor maskColor = colour.GetPixel();
1071
1072     // this is not very efficient, but I can't think
1073     // of a better way of doing it
1074         CGrafPtr        origPort ;
1075         GDHandle        origDevice ;
1076     RGBColor  col;
1077     RGBColor  colors[2] = {
1078         { 0xFFFF, 0xFFFF, 0xFFFF },
1079         { 0,      0,      0 }};
1080
1081         GetGWorld( &origPort , &origDevice ) ;
1082         for (int w = 0; w < bitmap.GetWidth(); w++)
1083     {
1084         for (int h = 0; h < bitmap.GetHeight(); h++)
1085         {
1086                         SetGWorld( bitmap.GetHBITMAP(), NULL ) ;
1087                         GetCPixel( w , h , &col ) ;
1088                         SetGWorld( m_maskBitmap , NULL ) ;
1089             if (col.red == maskColor.red && col.green == maskColor.green && col.blue == maskColor.blue)
1090             {
1091                                 SetCPixel( w , h , &colors[0] ) ;
1092             }
1093             else
1094             {
1095                                 SetCPixel( w , h , &colors[1] ) ;
1096             }
1097         }
1098     }
1099         UnlockPixels( GetGWorldPixMap( (CGrafPtr) m_maskBitmap ) ) ;
1100         UnlockPixels( GetGWorldPixMap( bitmap.GetHBITMAP() ) ) ;
1101         SetGWorld( origPort , origDevice ) ;
1102
1103     return TRUE;
1104 }
1105
1106 bool wxMask::PointMasked(int x, int y)
1107 {
1108    WXHBITMAP origPort;
1109    GDHandle  origDevice;
1110    RGBColor  color;
1111    bool masked = true;
1112
1113    GetGWorld( &origPort, &origDevice);
1114
1115    //Set port to mask and see if it masked (1) or not ( 0 )
1116    SetGWorld(m_maskBitmap, NULL);
1117    LockPixels(GetGWorldPixMap(m_maskBitmap));
1118    GetCPixel(x,y, &color);
1119    masked = !(color.red == 0 && color.green == 0 && color.blue == 0);
1120    UnlockPixels(GetGWorldPixMap(m_maskBitmap));
1121
1122    SetGWorld( origPort, origDevice);
1123
1124    return masked;
1125 }
1126
1127 /*
1128  * wxBitmapHandler
1129  */
1130
1131 IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject)
1132
1133 bool wxBitmapHandler::Create(wxBitmap *bitmap, void *data, long type, int width, int height, int depth)
1134 {
1135     return FALSE;
1136 }
1137
1138 bool wxBitmapHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1139         int desiredWidth, int desiredHeight)
1140 {
1141     return FALSE;
1142 }
1143
1144 bool wxBitmapHandler::SaveFile(const wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette)
1145 {
1146     return FALSE;
1147 }
1148
1149 /*
1150  * Standard handlers
1151  */
1152
1153 class WXDLLEXPORT wxPICTResourceHandler: public wxBitmapHandler
1154 {
1155     DECLARE_DYNAMIC_CLASS(wxPICTResourceHandler)
1156 public:
1157     inline wxPICTResourceHandler()
1158     {
1159         m_name = "Macintosh Pict resource";
1160         m_extension = "";
1161         m_type = wxBITMAP_TYPE_PICT_RESOURCE;
1162     };
1163
1164     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1165           int desiredWidth, int desiredHeight);
1166 };
1167 IMPLEMENT_DYNAMIC_CLASS(wxPICTResourceHandler, wxBitmapHandler)
1168
1169 bool  wxPICTResourceHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1170           int desiredWidth, int desiredHeight)
1171 {
1172         Str255 theName ;
1173
1174 #if TARGET_CARBON
1175         c2pstrcpy( (StringPtr) theName , name ) ;
1176 #else
1177         strcpy( (char *) theName , name ) ;
1178         c2pstr( (char *)theName ) ;
1179 #endif
1180
1181         PicHandle thePict = (PicHandle ) GetNamedResource( 'PICT' , theName ) ;
1182         if ( thePict )
1183         {
1184                 PictInfo theInfo ;
1185
1186                 GetPictInfo( thePict , &theInfo , 0 , 0 , systemMethod , 0 ) ;
1187                 DetachResource( (Handle) thePict ) ;
1188                 M_BITMAPHANDLERDATA->m_bitmapType = kMacBitmapTypePict ;
1189                 M_BITMAPHANDLERDATA->m_hPict = thePict ;
1190                 M_BITMAPHANDLERDATA->m_width =  theInfo.sourceRect.right - theInfo.sourceRect.left ;
1191                 M_BITMAPHANDLERDATA->m_height = theInfo.sourceRect.bottom - theInfo.sourceRect.top ;
1192
1193                 M_BITMAPHANDLERDATA->m_depth = theInfo.depth ;
1194                 M_BITMAPHANDLERDATA->m_ok = true ;
1195                 M_BITMAPHANDLERDATA->m_numColors = theInfo.uniqueColors ;
1196 //              M_BITMAPHANDLERDATA->m_bitmapPalette;
1197 //              M_BITMAPHANDLERDATA->m_quality;
1198                 return TRUE ;
1199         }
1200         return FALSE ;
1201 }
1202
1203 #if 0   // The following is an example for creating a bitmap handler
1204
1205 // TODO: bitmap handlers, a bit like this:
1206 class WXDLLEXPORT wxBMPResourceHandler: public wxBitmapHandler
1207 {
1208     DECLARE_DYNAMIC_CLASS(wxBMPResourceHandler)
1209 public:
1210     inline wxBMPResourceHandler()
1211     {
1212         m_name = "Windows bitmap resource";
1213         m_extension = "";
1214         m_type = wxBITMAP_TYPE_BMP_RESOURCE;
1215     };
1216
1217     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1218           int desiredWidth, int desiredHeight);
1219 };
1220 IMPLEMENT_DYNAMIC_CLASS(wxBMPResourceHandler, wxBitmapHandler)
1221
1222 #endif
1223
1224 void wxBitmap::CleanUpHandlers()
1225 {
1226     wxNode *node = sm_handlers.First();
1227     while ( node )
1228     {
1229         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
1230         wxNode *next = node->Next();
1231         delete handler;
1232         delete node;
1233         node = next;
1234     }
1235 }
1236
1237 void wxBitmap::InitStandardHandlers()
1238 {
1239     AddHandler(new wxPICTResourceHandler) ;
1240     AddHandler(new wxICONResourceHandler) ;
1241 }