src/mac/carbon/bitmap.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bitmap.cpp
   3 // Purpose:     wxBitmap
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "bitmap.h"
  14 #endif
  15
  16 #include "wx/defs.h"
  17
  18 #include "wx/bitmap.h"
  19 #include "wx/icon.h"
  20 #include "wx/log.h"
  21 #include "wx/image.h"
  22 #include "wx/xpmdecod.h"
  23
  24 #include "wx/rawbmp.h"
  25
  26 IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject)
  27 IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
  28 IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject )
  29
  30 #ifdef __DARWIN__
  31     #include <ApplicationServices/ApplicationServices.h>
  32 #else
  33     #include <PictUtils.h>
  34 #endif
  35
  36 #include "wx/mac/uma.h"
  37
  38 CTabHandle wxMacCreateColorTable( int numColors )
  39 {
  40     CTabHandle newColors; /* Handle to the new color table */
  41
  42     /* Allocate memory for the color table */
  43     newColors = (CTabHandle)NewHandleClear( sizeof (ColorTable) +
  44     sizeof (ColorSpec) * (numColors - 1) );
  45     if (newColors != nil)
  46     {
  47         /* Initialize the fields */
  48         (**newColors).ctSeed = GetCTSeed();
  49         (**newColors).ctFlags = 0;
  50         (**newColors).ctSize = numColors - 1;
  51         /* Initialize the table of colors */
  52     }
  53     return newColors ;
  54 }
  55
  56 void wxMacDestroyColorTable( CTabHandle colors )
  57 {
  58     DisposeHandle( (Handle) colors ) ;
  59 }
  60
  61 void wxMacSetColorTableEntry( CTabHandle newColors , int index , int red , int green ,  int blue )
  62 {
  63     (**newColors).ctTable[index].value = index;
  64     (**newColors).ctTable[index].rgb.red = red ; // someRedValue;
  65     (**newColors).ctTable[index].rgb.green = green ; // someGreenValue;
  66     (**newColors).ctTable[index].rgb.blue = blue ; // someBlueValue;
  67 }
  68
  69 GWorldPtr wxMacCreateGWorld( int width , int height , int depth )
  70 {
  71     OSErr err = noErr ;
  72     GWorldPtr port ;
  73     Rect rect = { 0 , 0 , height , width } ;
  74
  75     if ( depth < 0 )
  76     {
  77         depth = wxDisplayDepth() ;
  78     }
  79
  80     err = NewGWorld( &port , depth , &rect , NULL , NULL , 0 ) ;
  81     if ( err == noErr )
  82     {
  83         return port ;
  84     }
  85     return NULL ;
  86 }
  87
  88 void wxMacDestroyGWorld( GWorldPtr gw )
  89 {
  90     if ( gw )
  91         DisposeGWorld( gw ) ;
  92 }
  93
  94 #define kDefaultRes 0x00480000 /* Default resolution is 72 DPI; Fixed type */
  95
  96 OSErr SetupCIconHandlePixMap( CIconHandle icon , short depth , Rect  *bounds , CTabHandle colors )
  97 {
  98     CTabHandle newColors;       /* Color table used for the off-screen PixMap */
  99     Ptr        offBaseAddr;     /* Pointer to the off-screen pixel image */
 100     OSErr      error;           /* Returns error code */
 101     short      bytesPerRow;     /* Number of bytes per row in the PixMap */
 102
 103
 104     error = noErr;
 105     newColors = nil;
 106     offBaseAddr = nil;
 107
 108     bytesPerRow = ((depth * (bounds->right - bounds->left) + 31) / 32) * 4;
 109
 110    /* Clone the clut if indexed color; allocate a dummy clut if direct color*/
 111     if (depth <= 8)
 112         {
 113         newColors = colors;
 114         error = HandToHand((Handle *) &newColors);
 115         }
 116     else
 117         {
 118         newColors = (CTabHandle) NewHandle(sizeof(ColorTable) -
 119                 sizeof(CSpecArray));
 120         error = MemError();
 121         }
 122     if (error == noErr)
 123         {
 124         /* Allocate pixel image; long integer multiplication avoids overflow */
 125         (**icon).iconData = NewHandle((unsigned long) bytesPerRow * (bounds->bottom -
 126                 bounds->top));
 127         if ((**icon).iconData != nil)
 128             {
 129             /* Initialize fields common to indexed and direct PixMaps */
 130             (**icon).iconPMap.baseAddr = 0;  /* Point to image */
 131             (**icon).iconPMap.rowBytes = bytesPerRow | /* MSB set for PixMap */
 132                     0x8000;
 133             (**icon).iconPMap.bounds = *bounds;        /* Use given bounds */
 134             (**icon).iconPMap.pmVersion = 0;           /* No special stuff */
 135             (**icon).iconPMap.packType = 0;            /* Default PICT pack */
 136             (**icon).iconPMap.packSize = 0;            /* Always zero in mem */
 137             (**icon).iconPMap.hRes = kDefaultRes;      /* 72 DPI default res */
 138             (**icon).iconPMap.vRes = kDefaultRes;      /* 72 DPI default res */
 139             (**icon).iconPMap.pixelSize = depth;       /* Set # bits/pixel */
 140
 141             /* Initialize fields specific to indexed and direct PixMaps */
 142             if (depth <= 8)
 143                 {
 144                 /* PixMap is indexed */
 145                 (**icon).iconPMap.pixelType = 0;       /* Indicates indexed */
 146                 (**icon).iconPMap.cmpCount = 1;        /* Have 1 component */
 147                 (**icon).iconPMap.cmpSize = depth;     /* Component size=depth */
 148                 (**icon).iconPMap.pmTable = newColors; /* Handle to CLUT */
 149                 }
 150             else
 151                 {
 152                 /* PixMap is direct */
 153                 (**icon).iconPMap.pixelType = RGBDirect; /* Indicates direct */
 154                 (**icon).iconPMap.cmpCount = 3;          /* Have 3 components */
 155                 if (depth == 16)
 156                     (**icon).iconPMap.cmpSize = 5;       /* 5 bits/component */
 157                 else
 158                     (**icon).iconPMap.cmpSize = 8;       /* 8 bits/component */
 159                 (**newColors).ctSeed = 3 * (**icon).iconPMap.cmpSize;
 160                 (**newColors).ctFlags = 0;
 161                 (**newColors).ctSize = 0;
 162                 (**icon).iconPMap.pmTable = newColors;
 163                 }
 164             }
 165         else
 166             error = MemError();
 167         }
 168     else
 169         newColors = nil;
 170
 171     /* If no errors occured, return a handle to the new off-screen PixMap */
 172     if (error != noErr)
 173         {
 174         if (newColors != nil)
 175             DisposeCTable(newColors);
 176         }
 177
 178     /* Return the error code */
 179     return error;
 180 }
 181
 182 CIconHandle wxMacCreateCIcon(GWorldPtr image , GWorldPtr mask , short dstDepth , short iconSize  )
 183 {
 184     GWorldPtr       saveWorld;
 185     GDHandle        saveHandle;
 186
 187     GetGWorld(&saveWorld,&saveHandle);      // save Graphics env state
 188     SetGWorld(image,nil);
 189
 190     Rect frame = { 0 , 0 , iconSize , iconSize } ;
 191     Rect imageBounds = frame ;
 192     GetPortBounds( image , &imageBounds ) ;
 193
 194     int bwSize = iconSize / 8 * iconSize ;
 195     CIconHandle icon = (CIconHandle) NewHandleClear( sizeof ( CIcon ) + 2 * bwSize) ;
 196     HLock((Handle)icon) ;
 197     SetupCIconHandlePixMap( icon , dstDepth , &frame,GetCTable(dstDepth)) ;
 198     HLock( (**icon).iconData ) ;
 199     (**icon).iconPMap.baseAddr = *(**icon).iconData ;
 200
 201     LockPixels(GetGWorldPixMap(image));
 202
 203     CopyBits(GetPortBitMapForCopyBits(image),
 204                 (BitMapPtr)&((**icon).iconPMap),
 205                 &imageBounds,
 206                 &imageBounds,
 207                 srcCopy | ditherCopy, nil);
 208
 209
 210     UnlockPixels(GetGWorldPixMap(image));
 211     HUnlock( (**icon).iconData ) ;
 212
 213     (**icon).iconMask.rowBytes = iconSize / 8 ;
 214     (**icon).iconMask.bounds = frame ;
 215
 216     (**icon).iconBMap.rowBytes = iconSize / 8 ;
 217     (**icon).iconBMap.bounds = frame ;
 218     (**icon).iconMask.baseAddr = (char*) &(**icon).iconMaskData ;
 219     (**icon).iconBMap.baseAddr = (char*) &(**icon).iconMaskData + bwSize ;
 220
 221     if ( mask )
 222     {
 223         Rect r ;
 224         GetPortBounds( image , &r ) ;
 225       LockPixels(GetGWorldPixMap(mask) ) ;
 226       CopyBits(GetPortBitMapForCopyBits(mask) ,
 227           &(**icon).iconBMap , &r , &r, srcCopy , nil ) ;
 228       CopyBits(GetPortBitMapForCopyBits(mask) ,
 229           &(**icon).iconMask , &r , &r, srcCopy , nil ) ;
 230       UnlockPixels(GetGWorldPixMap( mask ) ) ;
 231     }
 232     else
 233     {
 234         Rect r ;
 235         GetPortBounds( image , &r ) ;
 236         LockPixels(GetGWorldPixMap(image));
 237       CopyBits(GetPortBitMapForCopyBits(image) ,
 238           &(**icon).iconBMap , &r , &r, srcCopy , nil ) ;
 239       CopyBits(GetPortBitMapForCopyBits(image) ,
 240           &(**icon).iconMask , &r , &r, srcCopy , nil ) ;
 241         UnlockPixels(GetGWorldPixMap(image));
 242     }
 243
 244     (**icon).iconMask.baseAddr = NULL ;
 245     (**icon).iconBMap.baseAddr = NULL ;
 246     (**icon).iconPMap.baseAddr = NULL ;
 247     HUnlock((Handle)icon) ;
 248     SetGWorld(saveWorld,saveHandle);
 249
 250     return icon;
 251 }
 252
 253 PicHandle wxMacCreatePict(GWorldPtr wp, GWorldPtr mask)
 254 {
 255   CGrafPtr       origPort ;
 256   GDHandle       origDev ;
 257
 258   PicHandle      pict;
 259
 260   RGBColor       white = { 0xffff ,0xffff , 0xffff } ;
 261   RGBColor       black = { 0x0000 ,0x0000 , 0x0000 } ;
 262
 263   GetGWorld( &origPort , &origDev ) ;
 264
 265   RgnHandle clipRgn = NULL ;
 266
 267   if ( mask )
 268   {
 269     clipRgn = NewRgn() ;
 270     LockPixels( GetGWorldPixMap( mask ) ) ;
 271     BitMapToRegion( clipRgn , (BitMap*) *GetGWorldPixMap( mask ) ) ;
 272     UnlockPixels( GetGWorldPixMap( mask ) ) ;
 273   }
 274
 275   SetGWorld( wp , NULL ) ;
 276   Rect portRect ;
 277   if ( clipRgn )
 278     GetRegionBounds( clipRgn , &portRect ) ;
 279   else
 280       GetPortBounds( wp , &portRect ) ;
 281   pict = OpenPicture(&portRect);
 282   if(pict)
 283   {
 284     RGBForeColor( &black ) ;
 285     RGBBackColor( &white ) ;
 286
 287     if ( clipRgn )
 288         SetClip( clipRgn ) ;
 289
 290     LockPixels( GetGWorldPixMap( wp ) ) ;
 291     CopyBits(GetPortBitMapForCopyBits(wp),
 292             GetPortBitMapForCopyBits(wp),
 293             &portRect,
 294             &portRect,
 295             srcCopy,clipRgn);
 296     UnlockPixels( GetGWorldPixMap( wp ) ) ;
 297     ClosePicture();
 298   }
 299   SetGWorld( origPort , origDev ) ;
 300   if ( clipRgn )
 301       DisposeRgn( clipRgn ) ;
 302   return pict;
 303 }
 304
 305 void wxMacCreateBitmapButton( ControlButtonContentInfo*info , const wxBitmap& bitmap , int forceType )
 306 {
 307     memset( info , 0 , sizeof(ControlButtonContentInfo) ) ;
 308     if ( bitmap.Ok() )
 309     {
 310         wxBitmapRefData * bmap = (wxBitmapRefData*) ( bitmap.GetRefData()) ;
 311         if ( bmap == NULL )
 312             return ;
 313
 314         if ( bmap->m_bitmapType == kMacBitmapTypePict )
 315         {
 316             info->contentType = kControlContentPictHandle ;
 317             info->u.picture = MAC_WXHMETAFILE(bmap->m_hPict) ;
 318         }
 319         else if ( bmap->m_bitmapType == kMacBitmapTypeGrafWorld )
 320         {
 321             if ( (forceType == kControlContentCIconHandle || ( bmap->m_width == bmap->m_height && forceType != kControlContentPictHandle ) ) && ((bmap->m_width & 0x3) == 0) )
 322             {
 323                 info->contentType = kControlContentCIconHandle ;
 324                 if ( bitmap.GetMask() )
 325                 {
 326                     info->u.cIconHandle = wxMacCreateCIcon( MAC_WXHBITMAP(bmap->m_hBitmap) , MAC_WXHBITMAP(bitmap.GetMask()->GetMaskBitmap()) ,
 327                                                            8 , bmap->m_width ) ;
 328                 }
 329                 else
 330                 {
 331                     info->u.cIconHandle = wxMacCreateCIcon( MAC_WXHBITMAP(bmap->m_hBitmap) , NULL ,
 332                                                            8 , bmap->m_width ) ;
 333                 }
 334             }
 335             else
 336             {
 337                 info->contentType = kControlContentPictHandle ;
 338                 if ( bitmap.GetMask() )
 339                 {
 340                     info->u.picture = wxMacCreatePict( MAC_WXHBITMAP(bmap->m_hBitmap) , MAC_WXHBITMAP(bitmap.GetMask()->GetMaskBitmap() ) ) ;
 341                }
 342                 else
 343                 {
 344                     info->u.picture = wxMacCreatePict( MAC_WXHBITMAP(bmap->m_hBitmap) , NULL ) ;
 345                 }
 346             }
 347         }
 348         else if ( bmap->m_bitmapType == kMacBitmapTypeIcon )
 349         {
 350             info->contentType = kControlContentCIconHandle ;
 351             info->u.cIconHandle = MAC_WXHICON(bmap->m_hIcon) ;
 352         }
 353     }
 354 }
 355
 356 wxBitmapRefData::wxBitmapRefData()
 357     : m_width(0)
 358     , m_height(0)
 359     , m_depth(0)
 360     , m_ok(FALSE)
 361     , m_numColors(0)
 362     , m_quality(0)
 363 {
 364     m_bitmapMask = NULL;
 365     m_hBitmap = NULL ;
 366     m_hPict = NULL ;
 367     m_hIcon = NULL ;
 368     m_bitmapType = kMacBitmapTypeUnknownType ;
 369     m_hasAlpha = false;
 370 }
 371
 372 // TODO move this to a public function of Bitmap Ref
 373 static void DisposeBitmapRefData(wxBitmapRefData *data)
 374 {
 375     if ( !data )
 376         return ;
 377
 378     switch (data->m_bitmapType)
 379     {
 380         case kMacBitmapTypePict :
 381             {
 382                 if ( data->m_hPict )
 383                 {
 384                     KillPicture( MAC_WXHMETAFILE( data->m_hPict ) ) ;
 385                     data->m_hPict = NULL ;
 386                 }
 387             }
 388             break ;
 389         case kMacBitmapTypeGrafWorld :
 390             {
 391                 if ( data->m_hBitmap )
 392                 {
 393                     wxMacDestroyGWorld( MAC_WXHBITMAP(data->m_hBitmap) ) ;
 394                     data->m_hBitmap = NULL ;
 395                 }
 396             }
 397             break ;
 398         case kMacBitmapTypeIcon :
 399             if ( data->m_hIcon )
 400             {
 401                 DisposeCIcon( MAC_WXHICON(data->m_hIcon) ) ;
 402                 data->m_hIcon = NULL ;
 403             }
 404
 405         default :
 406             // unkown type ?
 407             break ;
 408     }
 409
 410     if (data->m_bitmapMask)
 411     {
 412         delete data->m_bitmapMask;
 413         data->m_bitmapMask = NULL;
 414     }
 415 }
 416
 417 wxBitmapRefData::~wxBitmapRefData()
 418 {
 419   DisposeBitmapRefData( this ) ;
 420 }
 421
 422 bool wxBitmap::CopyFromIcon(const wxIcon& icon)
 423 {
 424     Ref(icon) ;
 425     return true;
 426 }
 427
 428 wxBitmap::wxBitmap()
 429 {
 430     m_refData = NULL;
 431 }
 432
 433 wxBitmap::~wxBitmap()
 434 {
 435 }
 436
 437 wxBitmap::wxBitmap(const char bits[], int the_width, int the_height, int no_bits)
 438 {
 439     m_refData = new wxBitmapRefData;
 440
 441     M_BITMAPDATA->m_width = the_width ;
 442     M_BITMAPDATA->m_height = the_height ;
 443     M_BITMAPDATA->m_depth = no_bits ;
 444     M_BITMAPDATA->m_numColors = 0;
 445     if ( no_bits == 1 )
 446     {
 447         M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
 448         M_BITMAPDATA->m_hBitmap = wxMacCreateGWorld( the_width , the_height , no_bits ) ;
 449         M_BITMAPDATA->m_ok = (MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap) != NULL ) ;
 450
 451         CGrafPtr    origPort ;
 452         GDHandle    origDevice ;
 453
 454         GetGWorld( &origPort , &origDevice ) ;
 455         SetGWorld( MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap) , NULL ) ;
 456         LockPixels( GetGWorldPixMap( MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap) ) ) ;
 457
 458         // bits is a char array
 459
 460         unsigned char* linestart = (unsigned char*) bits ;
 461         int linesize = ( the_width / (sizeof(unsigned char) * 8)) ;
 462         if ( the_width % (sizeof(unsigned char) * 8) ) {
 463             linesize += sizeof(unsigned char);
 464         }
 465
 466         RGBColor colors[2] = {
 467             { 0xFFFF , 0xFFFF , 0xFFFF } ,
 468             { 0, 0 , 0 }
 469         } ;
 470
 471         for ( int y = 0 ; y < the_height ; ++y , linestart += linesize )
 472         {
 473             for ( int x = 0 ; x < the_width ; ++x )
 474             {
 475                 int index = x / 8 ;
 476                 int bit = x % 8 ;
 477                 int mask = 1 << bit ;
 478                 if ( linestart[index] & mask )
 479                 {
 480                     SetCPixel( x , y , &colors[1] ) ;
 481                 }
 482                 else
 483                 {
 484                     SetCPixel( x , y , &colors[0] ) ;
 485                 }
 486             }
 487         }
 488         UnlockPixels( GetGWorldPixMap( MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap) ) ) ;
 489
 490         SetGWorld( origPort , origDevice ) ;
 491     }
 492     else
 493     {
 494         wxFAIL_MSG(wxT("multicolor BITMAPs not yet implemented"));
 495     }
 496 }
 497
 498 wxBitmap::wxBitmap(int w, int h, int d)
 499 {
 500     (void)Create(w, h, d);
 501 }
 502
 503 wxBitmap::wxBitmap(void *data, wxBitmapType type, int width, int height, int depth)
 504 {
 505     (void) Create(data, type, width, height, depth);
 506 }
 507
 508 wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type)
 509 {
 510     LoadFile(filename, type);
 511 }
 512
 513 bool wxBitmap::CreateFromXpm(const char **bits)
 514 {
 515     wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") )
 516     wxXPMDecoder decoder;
 517     wxImage img = decoder.ReadData(bits);
 518     wxCHECK_MSG( img.Ok(), FALSE, wxT("invalid bitmap data") )
 519     *this = wxBitmap(img);
 520     return TRUE;
 521 }
 522
 523 wxBitmap::wxBitmap(const char **bits)
 524 {
 525     (void) CreateFromXpm(bits);
 526 }
 527
 528 wxBitmap::wxBitmap(char **bits)
 529 {
 530     (void) CreateFromXpm((const char **)bits);
 531 }
 532
 533 wxBitmap wxBitmap::GetSubBitmap(const wxRect &rect) const
 534 {
 535    wxCHECK_MSG( Ok() &&
 536                 (rect.x >= 0) && (rect.y >= 0) &&
 537                 (rect.x+rect.width <= GetWidth()) &&
 538                 (rect.y+rect.height <= GetHeight()),
 539                 wxNullBitmap, wxT("invalid bitmap or bitmap region") );
 540
 541
 542    wxBitmap ret( rect.width, rect.height, GetDepth() );
 543    wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
 544
 545    GWorldPtr origPort;
 546    GDHandle  origDevice;
 547
 548    GetGWorld( &origPort, &origDevice );
 549
 550    // Update the subbitmaps reference data
 551    wxBitmapRefData *ref = (wxBitmapRefData *)ret.GetRefData();
 552
 553    ref->m_numColors     = M_BITMAPDATA->m_numColors;
 554    ref->m_bitmapPalette = M_BITMAPDATA->m_bitmapPalette;
 555    ref->m_bitmapType    = M_BITMAPDATA->m_bitmapType;
 556
 557    // Copy sub region of this bitmap
 558    if(M_BITMAPDATA->m_bitmapType == kMacBitmapTypePict)
 559    {
 560        printf("GetSubBitmap:  Copy a region of a Pict structure - TODO\n");
 561    }
 562    else if(M_BITMAPDATA->m_bitmapType == kMacBitmapTypeGrafWorld)
 563    {
 564        // Copy mask
 565        if(GetMask())
 566        {
 567            GWorldPtr submask, mask;
 568            RGBColor  color;
 569
 570            mask = (GWorldPtr) GetMask()->GetMaskBitmap();
 571            submask = wxMacCreateGWorld(rect.width, rect.height, GetMask()->GetDepth() );
 572            LockPixels(GetGWorldPixMap(mask));
 573            LockPixels(GetGWorldPixMap(submask));
 574
 575            for(int yy = 0; yy < rect.height; yy++)
 576            {
 577                for(int xx = 0; xx < rect.width; xx++)
 578                {
 579                    SetGWorld(mask, NULL);
 580                    GetCPixel(rect.x + xx, rect.y + yy, &color);
 581                    SetGWorld(submask, NULL);
 582                    SetCPixel(xx,yy, &color);
 583                }
 584            }
 585            UnlockPixels(GetGWorldPixMap(mask));
 586            UnlockPixels(GetGWorldPixMap(submask));
 587            ref->m_bitmapMask = new wxMask;
 588            ref->m_bitmapMask->SetMaskBitmap(submask);
 589        }
 590
 591        // Copy bitmap
 592        if(GetHBITMAP())
 593        {
 594            GWorldPtr subbitmap, bitmap;
 595            RGBColor  color;
 596
 597            bitmap = (GWorldPtr) GetHBITMAP();
 598            subbitmap = (GWorldPtr) ref->m_hBitmap ;
 599            LockPixels(GetGWorldPixMap(bitmap));
 600            LockPixels(GetGWorldPixMap(subbitmap));
 601
 602            for(int yy = 0; yy < rect.height; yy++)
 603            {
 604                for(int xx = 0; xx < rect.width; xx++)
 605                {
 606                    SetGWorld(bitmap, NULL);
 607                    GetCPixel(rect.x + xx, rect.y + yy, &color);
 608                    SetGWorld(subbitmap, NULL);
 609                    SetCPixel(xx, yy, &color);
 610                }
 611            }
 612            UnlockPixels(GetGWorldPixMap(bitmap));
 613            UnlockPixels(GetGWorldPixMap(subbitmap));
 614        }
 615    }
 616    SetGWorld( origPort, origDevice );
 617
 618    return ret;
 619 }
 620
 621 bool wxBitmap::Create(int w, int h, int d)
 622 {
 623     UnRef();
 624
 625     m_refData = new wxBitmapRefData;
 626
 627     M_BITMAPDATA->m_width = w;
 628     M_BITMAPDATA->m_height = h;
 629     M_BITMAPDATA->m_depth = d;
 630
 631     M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
 632     M_BITMAPDATA->m_hBitmap = wxMacCreateGWorld( w , h , d ) ;
 633     M_BITMAPDATA->m_ok = ( M_BITMAPDATA->m_hBitmap != NULL ) ;
 634     return M_BITMAPDATA->m_ok;
 635 }
 636
 637 int wxBitmap::GetBitmapType() const
 638 {
 639    wxCHECK_MSG( Ok(), kMacBitmapTypeUnknownType, wxT("invalid bitmap") );
 640
 641    return M_BITMAPDATA->m_bitmapType;
 642 }
 643
 644 void wxBitmap::SetHBITMAP(WXHBITMAP bmp)
 645 {
 646     if (!M_BITMAPDATA)
 647         m_refData = new wxBitmapRefData;
 648     else
 649         DisposeBitmapRefData( M_BITMAPDATA ) ;
 650
 651     M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
 652     M_BITMAPDATA->m_hBitmap = bmp ;
 653     M_BITMAPDATA->m_ok = ( M_BITMAPDATA->m_hBitmap != NULL ) ;
 654 }
 655
 656 void wxBitmap::SetHICON(WXHICON ico)
 657 {
 658     if (!M_BITMAPDATA)
 659         m_refData = new wxBitmapRefData;
 660     else
 661         DisposeBitmapRefData( M_BITMAPDATA ) ;
 662
 663     M_BITMAPDATA->m_bitmapType = kMacBitmapTypeIcon ;
 664     M_BITMAPDATA->m_hIcon = ico ;
 665     M_BITMAPDATA->m_ok = ( M_BITMAPDATA->m_hIcon != NULL ) ;
 666 }
 667
 668 void wxBitmap::SetPict(WXHMETAFILE pict)
 669 {
 670     if (!M_BITMAPDATA)
 671         m_refData = new wxBitmapRefData;
 672     else
 673         DisposeBitmapRefData( M_BITMAPDATA ) ;
 674
 675     M_BITMAPDATA->m_bitmapType = kMacBitmapTypePict ;
 676     M_BITMAPDATA->m_hPict = pict ;
 677     M_BITMAPDATA->m_ok = ( M_BITMAPDATA->m_hPict != NULL ) ;
 678 }
 679
 680 bool wxBitmap::LoadFile(const wxString& filename, wxBitmapType type)
 681 {
 682     UnRef();
 683
 684     wxBitmapHandler *handler = FindHandler(type);
 685
 686     if ( handler )
 687     {
 688         m_refData = new wxBitmapRefData;
 689
 690         return handler->LoadFile(this, filename, type, -1, -1);
 691     }
 692     else
 693     {
 694         wxImage loadimage(filename, type);
 695         if (loadimage.Ok()) {
 696             *this = loadimage;
 697             return true;
 698         }
 699     }
 700     wxLogWarning(wxT("no bitmap handler for type %d defined."), type);
 701     return false;
 702 }
 703
 704 bool wxBitmap::Create(void *data, wxBitmapType type, int width, int height, int depth)
 705 {
 706     UnRef();
 707
 708     m_refData = new wxBitmapRefData;
 709
 710     wxBitmapHandler *handler = FindHandler(type);
 711
 712     if ( handler == NULL ) {
 713         wxLogWarning(wxT("no bitmap handler for type %d defined."), type);
 714
 715         return FALSE;
 716     }
 717
 718     return handler->Create(this, data, type, width, height, depth);
 719 }
 720
 721 wxBitmap::wxBitmap(const wxImage& image, int depth)
 722 {
 723     wxCHECK_RET( image.Ok(), wxT("invalid image") )
 724     wxCHECK_RET( depth == -1, wxT("invalid bitmap depth") )
 725
 726     m_refData = new wxBitmapRefData();
 727
 728     // width and height of the device-dependent bitmap
 729     int width = image.GetWidth();
 730     int height = image.GetHeight();
 731
 732     // Create picture
 733
 734     Create( width , height , 32 ) ;
 735
 736     CGrafPtr origPort ;
 737     GDHandle origDevice ;
 738
 739     PixMapHandle pixMap = GetGWorldPixMap((GWorldPtr)GetHBITMAP()) ;
 740     LockPixels( pixMap );
 741
 742     GetGWorld( &origPort , &origDevice ) ;
 743     SetGWorld( (GWorldPtr) GetHBITMAP() , NULL ) ;
 744
 745     // Render image
 746     register unsigned char* data = image.GetData();
 747     char* destinationBase = GetPixBaseAddr( pixMap );
 748     register unsigned char* destination = (unsigned char*) destinationBase ;
 749     for (int y = 0; y < height; y++)
 750     {
 751         for (int x = 0; x < width; x++)
 752         {
 753             *destination++ = 0 ;
 754             *destination++ = *data++ ;
 755             *destination++ = *data++ ;
 756             *destination++ = *data++ ;
 757         }
 758         destinationBase += ((**pixMap).rowBytes & 0x7fff);
 759         destination = (unsigned char*) destinationBase ;
 760     }
 761     if ( image.HasAlpha() )
 762     {
 763       unsigned char *alpha = image.GetAlpha();
 764
 765       wxColour maskcolor(image.GetMaskRed(), image.GetMaskGreen(), image.GetMaskBlue());
 766       RGBColor color ;
 767       wxBitmap maskBitmap ;
 768
 769       maskBitmap.Create( width, height, 24);
 770       LockPixels( GetGWorldPixMap( (GWorldPtr) maskBitmap.GetHBITMAP()) );
 771       SetGWorld( (GWorldPtr) maskBitmap.GetHBITMAP(), NULL);
 772
 773       for (int y = 0; y < height; y++)
 774       {
 775           for (int x = 0; x < width; x++)
 776           {
 777               memset( &color , 255 - *alpha , sizeof( color ) );
 778               SetCPixel(x,y, &color);
 779
 780               alpha += 1 ;
 781           }
 782       }  // for height
 783       SetGWorld( (GWorldPtr) GetHBITMAP(), NULL);
 784       SetMask(new wxMask( maskBitmap ));
 785       UnlockPixels( GetGWorldPixMap( (GWorldPtr) maskBitmap.GetHBITMAP()) );
 786     }
 787     else if ( image.HasMask() )
 788     {
 789       data = image.GetData();
 790
 791       wxColour maskcolor(image.GetMaskRed(), image.GetMaskGreen(), image.GetMaskBlue());
 792       RGBColor white = { 0xffff, 0xffff, 0xffff };
 793       RGBColor black = { 0     , 0     , 0      };
 794       wxBitmap maskBitmap ;
 795
 796       maskBitmap.Create( width, height, 1);
 797       LockPixels( GetGWorldPixMap( (GWorldPtr) maskBitmap.GetHBITMAP()) );
 798       SetGWorld( (GWorldPtr) maskBitmap.GetHBITMAP(), NULL);
 799
 800       for (int y = 0; y < height; y++)
 801       {
 802           for (int x = 0; x < width; x++)
 803           {
 804               if ( data[0] == image.GetMaskRed() && data[1] == image.GetMaskGreen() && data[2] == image.GetMaskBlue() )
 805               {
 806                 SetCPixel(x,y, &white);
 807               }
 808               else {
 809                 SetCPixel(x,y, &black);
 810               }
 811               data += 3 ;
 812           }
 813       }  // for height
 814       SetGWorld( (GWorldPtr) GetHBITMAP(), NULL);
 815       SetMask(new wxMask( maskBitmap ));
 816       UnlockPixels( GetGWorldPixMap( (GWorldPtr) maskBitmap.GetHBITMAP()) );
 817     }
 818
 819     UnlockPixels( GetGWorldPixMap( (GWorldPtr) GetHBITMAP()) );
 820     SetGWorld( origPort, origDevice );
 821 }
 822
 823 wxImage wxBitmap::ConvertToImage() const
 824 {
 825     wxImage image;
 826
 827     wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
 828
 829     // create an wxImage object
 830     int width = GetWidth();
 831     int height = GetHeight();
 832     image.Create( width, height );
 833
 834     unsigned char *data = image.GetData();
 835
 836     wxCHECK_MSG( data, wxNullImage, wxT("Could not allocate data for image") );
 837
 838     GWorldPtr origPort;
 839     GDHandle  origDevice;
 840     RgnHandle maskRgn = NULL ;
 841     GWorldPtr tempPort = NULL ;
 842     int      index;
 843     RGBColor color;
 844     // background color set to RGB(16,16,16) in consistent with wxGTK
 845     unsigned char mask_r=16, mask_g=16, mask_b=16;
 846     SInt16   r,g,b;
 847     wxMask  *mask = GetMask();
 848
 849     GetGWorld( &origPort, &origDevice );
 850     if ( GetBitmapType() != kMacBitmapTypeGrafWorld )
 851     {
 852         tempPort = wxMacCreateGWorld( width , height , -1) ;
 853     }
 854     else
 855     {
 856         tempPort =  (GWorldPtr) GetHBITMAP() ;
 857     }
 858     LockPixels(GetGWorldPixMap(tempPort));
 859     SetGWorld( tempPort, NULL);
 860     if ( GetBitmapType() == kMacBitmapTypePict || GetBitmapType() == kMacBitmapTypeIcon )
 861     {
 862         Rect bitmaprect = { 0 , 0 , height, width };
 863         if ( GetBitmapType() == kMacBitmapTypeIcon )
 864         {
 865             ::PlotCIconHandle( &bitmaprect , atNone , ttNone , MAC_WXHICON(GetHICON()) ) ;
 866             maskRgn = NewRgn() ;
 867             BitMapToRegion( maskRgn , &(**(MAC_WXHICON(GetHICON()))).iconMask ) ;
 868         }
 869          else
 870              ::DrawPicture( (PicHandle) GetPict(), &bitmaprect ) ;
 871     }
 872     // Copy data into image
 873     index = 0;
 874     for (int yy = 0; yy < height; yy++)
 875     {
 876         for (int xx = 0; xx < width; xx++)
 877         {
 878             GetCPixel(xx,yy, &color);
 879             r = ((color.red ) >> 8);
 880             g = ((color.green ) >> 8);
 881             b = ((color.blue ) >> 8);
 882             data[index    ] = r;
 883             data[index + 1] = g;
 884             data[index + 2] = b;
 885             if ( maskRgn )
 886             {
 887                 Point pt ;
 888                 pt.h = xx ;
 889                 pt.v = yy ;
 890                 if ( !PtInRgn( pt , maskRgn ) )
 891                 {
 892                     data[index    ] = mask_r;
 893                     data[index + 1] = mask_g;
 894                     data[index + 2] = mask_b;
 895                 }
 896             }
 897             else
 898             {
 899                 if (mask)
 900                 {
 901                     if (mask->PointMasked(xx,yy))
 902                     {
 903                         data[index    ] = mask_r;
 904                         data[index + 1] = mask_g;
 905                         data[index + 2] = mask_b;
 906                     }
 907                 }
 908             }
 909             index += 3;
 910         }
 911     }
 912     if (mask || maskRgn )
 913     {
 914         image.SetMaskColour( mask_r, mask_g, mask_b );
 915         image.SetMask( true );
 916     }
 917
 918     // Free resources
 919     UnlockPixels(GetGWorldPixMap( tempPort ));
 920     SetGWorld(origPort, origDevice);
 921     if ( GetBitmapType() != kMacBitmapTypeGrafWorld )
 922     {
 923         wxMacDestroyGWorld( tempPort ) ;
 924     }
 925     if ( maskRgn )
 926     {
 927         DisposeRgn( maskRgn ) ;
 928     }
 929
 930     return image;
 931 }
 932
 933
 934 bool wxBitmap::SaveFile(const wxString& filename, wxBitmapType type,
 935                         const wxPalette *palette) const
 936 {
 937     wxBitmapHandler *handler = FindHandler(type);
 938
 939     if ( handler )
 940     {
 941         return handler->SaveFile(this, filename, type, palette);
 942     }
 943     else
 944     {
 945         wxImage image = ConvertToImage();
 946
 947         return image.SaveFile(filename, type);
 948     }
 949
 950     wxLogWarning(wxT("no bitmap handler for type %d defined."), type);
 951     return false;
 952 }
 953
 954 bool wxBitmap::Ok() const
 955 {
 956    return (M_BITMAPDATA && M_BITMAPDATA->m_ok);
 957 }
 958
 959 int wxBitmap::GetHeight() const
 960 {
 961    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 962
 963    return M_BITMAPDATA->m_height;
 964 }
 965
 966 int wxBitmap::GetWidth() const
 967 {
 968    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 969
 970    return M_BITMAPDATA->m_width;
 971 }
 972
 973 int wxBitmap::GetDepth() const
 974 {
 975    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 976
 977    return M_BITMAPDATA->m_depth;
 978 }
 979
 980 int wxBitmap::GetQuality() const
 981 {
 982    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 983
 984    return M_BITMAPDATA->m_quality;
 985 }
 986
 987 wxMask *wxBitmap::GetMask() const
 988 {
 989    wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
 990
 991    return M_BITMAPDATA->m_bitmapMask;
 992 }
 993
 994 void wxBitmap::SetWidth(int w)
 995 {
 996     if (!M_BITMAPDATA)
 997         m_refData = new wxBitmapRefData;
 998
 999     M_BITMAPDATA->m_width = w;
1000 }
1001
1002 void wxBitmap::SetHeight(int h)
1003 {
1004     if (!M_BITMAPDATA)
1005         m_refData = new wxBitmapRefData;
1006
1007     M_BITMAPDATA->m_height = h;
1008 }
1009
1010 void wxBitmap::SetDepth(int d)
1011 {
1012     if (!M_BITMAPDATA)
1013         m_refData = new wxBitmapRefData;
1014
1015     M_BITMAPDATA->m_depth = d;
1016 }
1017
1018 void wxBitmap::SetQuality(int q)
1019 {
1020     if (!M_BITMAPDATA)
1021         m_refData = new wxBitmapRefData;
1022
1023     M_BITMAPDATA->m_quality = q;
1024 }
1025
1026 void wxBitmap::SetOk(bool isOk)
1027 {
1028     if (!M_BITMAPDATA)
1029         m_refData = new wxBitmapRefData;
1030
1031     M_BITMAPDATA->m_ok = isOk;
1032 }
1033
1034 wxPalette *wxBitmap::GetPalette() const
1035 {
1036    wxCHECK_MSG( Ok(), NULL, wxT("Invalid bitmap  GetPalette()") );
1037
1038    return &M_BITMAPDATA->m_bitmapPalette;
1039 }
1040
1041 void wxBitmap::SetPalette(const wxPalette& palette)
1042 {
1043     if (!M_BITMAPDATA)
1044         m_refData = new wxBitmapRefData;
1045
1046     M_BITMAPDATA->m_bitmapPalette = palette ;
1047 }
1048
1049 void wxBitmap::SetMask(wxMask *mask)
1050 {
1051     if (!M_BITMAPDATA)
1052         m_refData = new wxBitmapRefData;
1053
1054     // Remove existing mask if there is one.
1055     delete M_BITMAPDATA->m_bitmapMask;
1056
1057     M_BITMAPDATA->m_bitmapMask = mask ;
1058 }
1059
1060 WXHBITMAP wxBitmap::GetHBITMAP() const
1061 {
1062    wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
1063
1064    return MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap);
1065 }
1066
1067 WXHMETAFILE wxBitmap::GetPict( bool *created ) const
1068 {
1069     wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
1070
1071     PicHandle picture = NULL ;       // This is the returned picture
1072     if ( created )
1073         (*created) = false ;
1074     // If bitmap already in Pict format return pointer
1075     if(M_BITMAPDATA->m_bitmapType == kMacBitmapTypePict) {
1076        return M_BITMAPDATA->m_hPict;
1077     }
1078     else if(M_BITMAPDATA->m_bitmapType != kMacBitmapTypeGrafWorld) {
1079        // Invalid bitmap
1080        return NULL;
1081     }
1082     else
1083     {
1084         if ( GetMask() )
1085         {
1086             picture = wxMacCreatePict( MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap) , MAC_WXHBITMAP(GetMask()->GetMaskBitmap() ) ) ;
1087         }
1088         else
1089         {
1090             picture = wxMacCreatePict( MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap) , NULL ) ;
1091         }
1092         if ( created && picture )
1093             (*created) = true ;
1094     }
1095      return picture ;
1096 }
1097
1098 /*
1099  * wxMask
1100  */
1101
1102 wxMask::wxMask()
1103     : m_maskBitmap(NULL)
1104 {
1105 }
1106
1107 // Construct a mask from a bitmap and a colour indicating
1108 // the transparent area
1109 wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour)
1110     : m_maskBitmap(NULL)
1111 {
1112     Create(bitmap, colour);
1113 }
1114
1115 // Construct a mask from a bitmap and a palette index indicating
1116 // the transparent area
1117 wxMask::wxMask(const wxBitmap& bitmap, int paletteIndex)
1118     : m_maskBitmap(NULL)
1119 {
1120     Create(bitmap, paletteIndex);
1121 }
1122
1123 // Construct a mask from a mono bitmap (copies the bitmap).
1124 wxMask::wxMask(const wxBitmap& bitmap)
1125     : m_maskBitmap(NULL)
1126 {
1127     Create(bitmap);
1128 }
1129
1130 wxMask::~wxMask()
1131 {
1132     if ( m_maskBitmap )
1133     {
1134         wxMacDestroyGWorld(  (GWorldPtr) m_maskBitmap ) ;
1135         m_maskBitmap = NULL ;
1136     }
1137 }
1138
1139 // Create a mask from a mono bitmap (copies the bitmap).
1140 bool wxMask::Create(const wxBitmap& bitmap)
1141 {
1142    if ( m_maskBitmap )
1143    {
1144        wxMacDestroyGWorld(  (GWorldPtr) m_maskBitmap ) ;
1145        m_maskBitmap = NULL ;
1146    }
1147    wxCHECK_MSG( bitmap.GetBitmapType() == kMacBitmapTypeGrafWorld, false,
1148                 wxT("Cannot create mask from this bitmap type (TODO)"));
1149    // other types would require a temporary bitmap. not yet implemented
1150
1151    wxCHECK_MSG( bitmap.Ok(), false, wxT("Invalid bitmap"));
1152
1153    m_depth = bitmap.GetDepth() ;
1154    m_maskBitmap = wxMacCreateGWorld(bitmap.GetWidth(), bitmap.GetHeight(), bitmap.GetDepth() );
1155    Rect rect = { 0,0, bitmap.GetHeight(), bitmap.GetWidth() };
1156
1157    LockPixels( GetGWorldPixMap( (GWorldPtr) m_maskBitmap) );
1158    LockPixels( GetGWorldPixMap( (GWorldPtr) bitmap.GetHBITMAP()) );
1159    CopyBits(GetPortBitMapForCopyBits( (GWorldPtr) bitmap.GetHBITMAP()),
1160             GetPortBitMapForCopyBits( (GWorldPtr) m_maskBitmap),
1161             &rect, &rect, srcCopy, 0);
1162    UnlockPixels( GetGWorldPixMap( (GWorldPtr) m_maskBitmap) );
1163    UnlockPixels( GetGWorldPixMap( (GWorldPtr) bitmap.GetHBITMAP()) );
1164
1165    return FALSE;
1166 }
1167
1168 // Create a mask from a bitmap and a palette index indicating
1169 // the transparent area
1170 bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex)
1171 {
1172     // TODO
1173     wxCHECK_MSG( 0, false, wxT("wxMask::Create not yet implemented"));
1174     return FALSE;
1175 }
1176
1177 // Create a mask from a bitmap and a colour indicating
1178 // the transparent area
1179 bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour)
1180 {
1181     if ( m_maskBitmap )
1182     {
1183         wxMacDestroyGWorld(  (GWorldPtr) m_maskBitmap ) ;
1184         m_maskBitmap = NULL ;
1185     }
1186     wxCHECK_MSG( bitmap.GetBitmapType() == kMacBitmapTypeGrafWorld, false,
1187                  wxT("Cannot create mask from this bitmap type (TODO)"));
1188     // other types would require a temporary bitmap. not yet implemented
1189
1190     wxCHECK_MSG( bitmap.Ok(), false, wxT("Illigal bitmap"));
1191
1192     m_maskBitmap = wxMacCreateGWorld( bitmap.GetWidth() , bitmap.GetHeight() , 1 );
1193     m_depth = 1 ;
1194     LockPixels( GetGWorldPixMap(  (GWorldPtr) m_maskBitmap ) );
1195     LockPixels( GetGWorldPixMap(  (GWorldPtr) bitmap.GetHBITMAP() ) );
1196     RGBColor maskColor = MAC_WXCOLORREF(colour.GetPixel());
1197
1198     // this is not very efficient, but I can't think
1199     // of a better way of doing it
1200     CGrafPtr    origPort ;
1201     GDHandle    origDevice ;
1202     RGBColor  col;
1203     RGBColor  colors[2] = {
1204         { 0xFFFF, 0xFFFF, 0xFFFF },
1205         { 0,      0,      0 }};
1206
1207     GetGWorld( &origPort , &origDevice ) ;
1208     for (int w = 0; w < bitmap.GetWidth(); w++)
1209     {
1210         for (int h = 0; h < bitmap.GetHeight(); h++)
1211         {
1212             SetGWorld(  (GWorldPtr) bitmap.GetHBITMAP(), NULL ) ;
1213             GetCPixel( w , h , &col ) ;
1214             SetGWorld(  (GWorldPtr) m_maskBitmap , NULL ) ;
1215             if (col.red == maskColor.red && col.green == maskColor.green && col.blue == maskColor.blue)
1216             {
1217                 SetCPixel( w , h , &colors[0] ) ;
1218             }
1219             else
1220             {
1221                 SetCPixel( w , h , &colors[1] ) ;
1222             }
1223         }
1224     }
1225     UnlockPixels( GetGWorldPixMap( (CGrafPtr) m_maskBitmap ) ) ;
1226     UnlockPixels( GetGWorldPixMap(  (GWorldPtr) bitmap.GetHBITMAP() ) ) ;
1227     SetGWorld( origPort , origDevice ) ;
1228
1229     return TRUE;
1230 }
1231
1232 bool wxMask::PointMasked(int x, int y)
1233 {
1234    GWorldPtr origPort;
1235    GDHandle  origDevice;
1236    RGBColor  color;
1237    bool masked = true;
1238
1239    GetGWorld( &origPort, &origDevice);
1240
1241    //Set port to mask and see if it masked (1) or not ( 0 )
1242    SetGWorld( (GWorldPtr) m_maskBitmap, NULL);
1243    LockPixels(GetGWorldPixMap( (GWorldPtr) m_maskBitmap));
1244    GetCPixel(x,y, &color);
1245    masked = !(color.red == 0 && color.green == 0 && color.blue == 0);
1246    UnlockPixels(GetGWorldPixMap( (GWorldPtr) m_maskBitmap));
1247
1248    SetGWorld( origPort, origDevice);
1249
1250    return masked;
1251 }
1252
1253 /*
1254  * wxBitmapHandler
1255  */
1256
1257 wxBitmapHandler::~wxBitmapHandler()
1258 {
1259 }
1260
1261 bool wxBitmapHandler::Create(wxBitmap *bitmap, void *data, long type, int width, int height, int depth)
1262 {
1263     return FALSE;
1264 }
1265
1266 bool wxBitmapHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1267         int desiredWidth, int desiredHeight)
1268 {
1269     return FALSE;
1270 }
1271
1272 bool wxBitmapHandler::SaveFile(const wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette)
1273 {
1274     return FALSE;
1275 }
1276
1277 /*
1278  * Standard handlers
1279  */
1280
1281 class WXDLLEXPORT wxPICTResourceHandler: public wxBitmapHandler
1282 {
1283     DECLARE_DYNAMIC_CLASS(wxPICTResourceHandler)
1284 public:
1285     inline wxPICTResourceHandler()
1286     {
1287         m_name = wxT("Macintosh Pict resource");
1288         m_extension = wxEmptyString;
1289         m_type = wxBITMAP_TYPE_PICT_RESOURCE;
1290     };
1291
1292     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1293           int desiredWidth, int desiredHeight);
1294 };
1295 IMPLEMENT_DYNAMIC_CLASS(wxPICTResourceHandler, wxBitmapHandler)
1296
1297 bool  wxPICTResourceHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1298           int desiredWidth, int desiredHeight)
1299 {
1300     Str255 theName ;
1301     wxMacStringToPascal( name , theName ) ;
1302
1303     PicHandle thePict = (PicHandle ) GetNamedResource( 'PICT' , theName ) ;
1304     if ( thePict )
1305     {
1306         PictInfo theInfo ;
1307
1308         GetPictInfo( thePict , &theInfo , 0 , 0 , systemMethod , 0 ) ;
1309         DetachResource( (Handle) thePict ) ;
1310         M_BITMAPHANDLERDATA->m_bitmapType = kMacBitmapTypePict ;
1311         M_BITMAPHANDLERDATA->m_hPict = thePict ;
1312         M_BITMAPHANDLERDATA->m_width =  theInfo.sourceRect.right - theInfo.sourceRect.left ;
1313         M_BITMAPHANDLERDATA->m_height = theInfo.sourceRect.bottom - theInfo.sourceRect.top ;
1314
1315         M_BITMAPHANDLERDATA->m_depth = theInfo.depth ;
1316         M_BITMAPHANDLERDATA->m_ok = true ;
1317         M_BITMAPHANDLERDATA->m_numColors = theInfo.uniqueColors ;
1318 //      M_BITMAPHANDLERDATA->m_bitmapPalette;
1319 //      M_BITMAPHANDLERDATA->m_quality;
1320         return TRUE ;
1321     }
1322     return FALSE ;
1323 }
1324
1325 void wxBitmap::InitStandardHandlers()
1326 {
1327     AddHandler(new wxPICTResourceHandler) ;
1328     AddHandler(new wxICONResourceHandler) ;
1329 }
1330
1331 // ----------------------------------------------------------------------------
1332 // raw bitmap access support
1333 // ----------------------------------------------------------------------------
1334
1335 void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp)
1336 {
1337     if ( !Ok() )
1338     {
1339         // no bitmap, no data (raw or otherwise)
1340         return NULL;
1341     }
1342
1343    if ( M_BITMAPDATA->m_bitmapType != kMacBitmapTypeGrafWorld )
1344    {
1345        wxFAIL_MSG( _T("GetRawData() only supported for GWorlds") );
1346
1347        return NULL;
1348    }
1349
1350    GWorldPtr gworld = MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap);
1351    PixMapHandle hPixMap = GetGWorldPixMap(gworld);
1352    wxCHECK_MSG( hPixMap && *hPixMap, NULL,
1353                     _T("GetRawData(): failed to get PixMap from GWorld?") );
1354
1355    wxCHECK_MSG( (*hPixMap)->pixelSize == bpp, NULL,
1356                     _T("GetRawData(): pixel format mismatch") );
1357
1358    if ( !LockPixels(hPixMap) )
1359    {
1360        wxFAIL_MSG( _T("failed to lock PixMap in GetRawData()") );
1361
1362        return NULL;
1363    }
1364
1365    data.m_width = GetWidth();
1366    data.m_height = GetHeight();
1367    data.m_stride = (*hPixMap)->rowBytes & 0x7fff;
1368
1369    M_BITMAPDATA->m_hasAlpha = false;
1370
1371    return GetPixBaseAddr(hPixMap);
1372 }
1373
1374 void wxBitmap::UngetRawData(wxPixelDataBase& dataBase)
1375 {
1376     if ( !Ok() )
1377         return;
1378
1379     if ( M_BITMAPDATA->m_hasAlpha )
1380     {
1381         wxAlphaPixelData& data = (wxAlphaPixelData&)dataBase;
1382
1383         int w = data.GetWidth(),
1384             h = data.GetHeight();
1385
1386         wxBitmap bmpMask(GetWidth(), GetHeight(), 32);
1387         wxAlphaPixelData dataMask(bmpMask, data.GetOrigin(), wxSize(w, h));
1388         wxAlphaPixelData::Iterator pMask(dataMask),
1389                                    p(data);
1390         for ( int y = 0; y < h; y++ )
1391         {
1392             wxAlphaPixelData::Iterator rowStartMask = pMask,
1393                                        rowStart = p;
1394
1395             for ( int x = 0; x < w; x++ )
1396             {
1397                 const wxAlphaPixelData::Iterator::ChannelType
1398                     alpha = p.Alpha();
1399
1400                 pMask.Red() = alpha;
1401                 pMask.Green() = alpha;
1402                 pMask.Blue() = alpha;
1403
1404                 ++p;
1405                 ++pMask;
1406             }
1407
1408             p = rowStart;
1409             p.OffsetY(data, 1);
1410
1411             pMask = rowStartMask;
1412             pMask.OffsetY(dataMask, 1);
1413         }
1414
1415         SetMask(new wxMask(bmpMask));
1416     }
1417
1418     GWorldPtr gworld = MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap);
1419     PixMapHandle hPixMap = GetGWorldPixMap(gworld);
1420     if ( hPixMap )
1421     {
1422         UnlockPixels(hPixMap);
1423     }
1424 }
1425
1426 void wxBitmap::UseAlpha()
1427 {
1428     // remember that we are using alpha channel, we'll need to create a proper
1429     // mask in UngetRawData()
1430     M_BITMAPDATA->m_hasAlpha = true;
1431 }
1432