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