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