src/mac/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/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 IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject)
  25 IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
  26 IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject )
  27
  28 #ifdef __DARWIN__
  29     #include <ApplicationServices/ApplicationServices.h>
  30 #else
  31     #include <PictUtils.h>
  32 #endif
  33
  34 #include "wx/mac/uma.h"
  35
  36 CTabHandle wxMacCreateColorTable( int numColors )
  37 {
  38     CTabHandle newColors; /* Handle to the new color table */
  39
  40     /* Allocate memory for the color table */
  41     newColors = (CTabHandle)NewHandleClear( sizeof (ColorTable) +
  42     sizeof (ColorSpec) * (numColors - 1) );
  43     if (newColors != nil)
  44     {
  45         /* Initialize the fields */
  46         (**newColors).ctSeed = GetCTSeed();
  47         (**newColors).ctFlags = 0;
  48         (**newColors).ctSize = numColors - 1;
  49         /* Initialize the table of colors */
  50     }
  51     return newColors ;
  52 }
  53
  54 void wxMacDestroyColorTable( CTabHandle colors )
  55 {
  56     DisposeHandle( (Handle) colors ) ;
  57 }
  58
  59 void wxMacSetColorTableEntry( CTabHandle newColors , int index , int red , int green ,  int blue )
  60 {
  61     (**newColors).ctTable[index].value = index;
  62     (**newColors).ctTable[index].rgb.red = 0 ;// someRedValue;
  63     (**newColors).ctTable[index].rgb.green = 0 ; // someGreenValue;
  64     (**newColors).ctTable[index].rgb.blue = 0 ; // someBlueValue;
  65 }
  66
  67 GWorldPtr wxMacCreateGWorld( int width , int height , int depth )
  68 {
  69     OSErr err = noErr ;
  70     GWorldPtr port ;
  71     Rect rect = { 0 , 0 , height , width } ;
  72
  73     if ( depth < 0 )
  74     {
  75         depth = wxDisplayDepth() ;
  76     }
  77
  78     err = NewGWorld( &port , depth , &rect , NULL , NULL , 0 ) ;
  79     if ( err == noErr )
  80     {
  81         return port ;
  82     }
  83     return NULL ;
  84 }
  85
  86 void wxMacDestroyGWorld( GWorldPtr gw )
  87 {
  88     if ( gw )
  89         DisposeGWorld( gw ) ;
  90 }
  91
  92 #define kDefaultRes 0x00480000 /* Default resolution is 72 DPI; Fixed type */
  93
  94 OSErr SetupCIconHandlePixMap( CIconHandle icon , short depth , Rect  *bounds , CTabHandle colors )
  95 {
  96     CTabHandle newColors;       /* Color table used for the off-screen PixMap */
  97     Ptr        offBaseAddr;     /* Pointer to the off-screen pixel image */
  98     OSErr      error;           /* Returns error code */
  99     short      bytesPerRow;     /* Number of bytes per row in the PixMap */
 100
 101
 102     error = noErr;
 103     newColors = nil;
 104     offBaseAddr = nil;
 105
 106     bytesPerRow = ((depth * (bounds->right - bounds->left) + 31) / 32) * 4;
 107
 108    /* Clone the clut if indexed color; allocate a dummy clut if direct color*/
 109     if (depth <= 8)
 110         {
 111         newColors = colors;
 112         error = HandToHand((Handle *) &newColors);
 113         }
 114     else
 115         {
 116         newColors = (CTabHandle) NewHandle(sizeof(ColorTable) -
 117                 sizeof(CSpecArray));
 118         error = MemError();
 119         }
 120     if (error == noErr)
 121         {
 122         /* Allocate pixel image; long integer multiplication avoids overflow */
 123         (**icon).iconData = NewHandle((unsigned long) bytesPerRow * (bounds->bottom -
 124                 bounds->top));
 125         if ((**icon).iconData != nil)
 126             {
 127             /* Initialize fields common to indexed and direct PixMaps */
 128             (**icon).iconPMap.baseAddr = 0;  /* Point to image */
 129             (**icon).iconPMap.rowBytes = bytesPerRow | /* MSB set for PixMap */
 130                     0x8000;
 131             (**icon).iconPMap.bounds = *bounds;        /* Use given bounds */
 132             (**icon).iconPMap.pmVersion = 0;           /* No special stuff */
 133             (**icon).iconPMap.packType = 0;            /* Default PICT pack */
 134             (**icon).iconPMap.packSize = 0;            /* Always zero in mem */
 135             (**icon).iconPMap.hRes = kDefaultRes;      /* 72 DPI default res */
 136             (**icon).iconPMap.vRes = kDefaultRes;      /* 72 DPI default res */
 137             (**icon).iconPMap.pixelSize = depth;       /* Set # bits/pixel */
 138
 139             /* Initialize fields specific to indexed and direct PixMaps */
 140             if (depth <= 8)
 141                 {
 142                 /* PixMap is indexed */
 143                 (**icon).iconPMap.pixelType = 0;       /* Indicates indexed */
 144                 (**icon).iconPMap.cmpCount = 1;        /* Have 1 component */
 145                 (**icon).iconPMap.cmpSize = depth;     /* Component size=depth */
 146                 (**icon).iconPMap.pmTable = newColors; /* Handle to CLUT */
 147                 }
 148             else
 149                 {
 150                 /* PixMap is direct */
 151                 (**icon).iconPMap.pixelType = RGBDirect; /* Indicates direct */
 152                 (**icon).iconPMap.cmpCount = 3;          /* Have 3 components */
 153                 if (depth == 16)
 154                     (**icon).iconPMap.cmpSize = 5;       /* 5 bits/component */
 155                 else
 156                     (**icon).iconPMap.cmpSize = 8;       /* 8 bits/component */
 157                 (**newColors).ctSeed = 3 * (**icon).iconPMap.cmpSize;
 158                 (**newColors).ctFlags = 0;
 159                 (**newColors).ctSize = 0;
 160                 (**icon).iconPMap.pmTable = newColors;
 161                 }
 162             }
 163         else
 164             error = MemError();
 165         }
 166     else
 167         newColors = nil;
 168
 169     /* If no errors occured, return a handle to the new off-screen PixMap */
 170     if (error != noErr)
 171         {
 172         if (newColors != nil)
 173             DisposeCTable(newColors);
 174         }
 175
 176     /* Return the error code */
 177     return error;
 178 }
 179
 180 CIconHandle wxMacCreateCIcon(GWorldPtr image , GWorldPtr mask , short dstDepth , short iconSize  )
 181 {
 182     GWorldPtr       saveWorld;
 183     GDHandle        saveHandle;
 184
 185     GetGWorld(&saveWorld,&saveHandle);      // save Graphics env state
 186     SetGWorld(image,nil);
 187
 188     Rect frame = { 0 , 0 , iconSize , iconSize } ;
 189     Rect imageBounds = frame ;
 190     GetPortBounds( image , &imageBounds ) ;
 191
 192     int bwSize = iconSize / 8 * iconSize ;
 193     CIconHandle icon = (CIconHandle) NewHandleClear( sizeof ( CIcon ) + 2 * bwSize) ;
 194     HLock((Handle)icon) ;
 195     SetupCIconHandlePixMap( icon , dstDepth , &frame,GetCTable(dstDepth)) ;
 196     HLock( (**icon).iconData ) ;
 197     (**icon).iconPMap.baseAddr = *(**icon).iconData ;
 198
 199     LockPixels(GetGWorldPixMap(image));
 200
 201     CopyBits(GetPortBitMapForCopyBits(image),
 202                 (BitMapPtr)&((**icon).iconPMap),
 203                 &imageBounds,
 204                 &imageBounds,
 205                 srcCopy | ditherCopy, nil);
 206
 207
 208     UnlockPixels(GetGWorldPixMap(image));
 209     HUnlock( (**icon).iconData ) ;
 210
 211     (**icon).iconMask.rowBytes = iconSize / 8 ;
 212     (**icon).iconMask.bounds = frame ;
 213
 214     (**icon).iconBMap.rowBytes = iconSize / 8 ;
 215     (**icon).iconBMap.bounds = frame ;
 216     (**icon).iconMask.baseAddr = (char*) &(**icon).iconMaskData ;
 217     (**icon).iconBMap.baseAddr = (char*) &(**icon).iconMaskData + bwSize ;
 218
 219     if ( mask )
 220     {
 221       LockPixels(GetGWorldPixMap(mask) ) ;
 222       CopyBits(GetPortBitMapForCopyBits(mask) ,
 223           &(**icon).iconBMap , &imageBounds , &imageBounds, srcCopy , nil ) ;
 224       CopyBits(GetPortBitMapForCopyBits(mask) ,
 225           &(**icon).iconMask , &imageBounds , &imageBounds, srcCopy , nil ) ;
 226       UnlockPixels(GetGWorldPixMap( mask ) ) ;
 227     }
 228     else
 229     {
 230         LockPixels(GetGWorldPixMap(image));
 231       CopyBits(GetPortBitMapForCopyBits(image) ,
 232           &(**icon).iconBMap , &imageBounds , &imageBounds, srcCopy , nil ) ;
 233       CopyBits(GetPortBitMapForCopyBits(image) ,
 234           &(**icon).iconMask , &imageBounds , &imageBounds, srcCopy , nil ) ;
 235         UnlockPixels(GetGWorldPixMap(image));
 236     }
 237
 238     (**icon).iconMask.baseAddr = NULL ;
 239     (**icon).iconBMap.baseAddr = NULL ;
 240     (**icon).iconPMap.baseAddr = NULL ;
 241     HUnlock((Handle)icon) ;
 242     SetGWorld(saveWorld,saveHandle);
 243
 244     return icon;
 245 }
 246
 247 PicHandle wxMacCreatePict(GWorldPtr wp, GWorldPtr mask)
 248 {
 249   CGrafPtr       origPort ;
 250   GDHandle       origDev ;
 251
 252   PicHandle      pict;
 253
 254   RGBColor       white = { 0xffff ,0xffff , 0xffff } ;
 255   RGBColor       black = { 0x0000 ,0x0000 , 0x0000 } ;
 256
 257   GetGWorld( &origPort , &origDev ) ;
 258
 259   RgnHandle clipRgn = NULL ;
 260
 261   if ( mask )
 262   {
 263     clipRgn = NewRgn() ;
 264     LockPixels( GetGWorldPixMap( mask ) ) ;
 265     BitMapToRegion( clipRgn , (BitMap*) *GetGWorldPixMap( mask ) ) ;
 266     UnlockPixels( GetGWorldPixMap( mask ) ) ;
 267   }
 268
 269   SetGWorld( wp , NULL ) ;
 270   Rect portRect ;
 271   GetPortBounds( wp , &portRect ) ;
 272
 273   pict = OpenPicture(&portRect);
 274   if(pict)
 275   {
 276     RGBForeColor( &black ) ;
 277     RGBBackColor( &white ) ;
 278
 279     LockPixels( GetGWorldPixMap( wp ) ) ;
 280     CopyBits(GetPortBitMapForCopyBits(wp),
 281             GetPortBitMapForCopyBits(wp),
 282             &portRect,
 283             &portRect,
 284             srcCopy,clipRgn);
 285     UnlockPixels( GetGWorldPixMap( wp ) ) ;
 286     ClosePicture();
 287   }
 288   SetGWorld( origPort , origDev ) ;
 289   return pict;
 290 }
 291
 292 wxBitmapRefData::wxBitmapRefData()
 293 {
 294     m_ok = FALSE;
 295     m_width = 0;
 296     m_height = 0;
 297     m_depth = 0;
 298     m_quality = 0;
 299     m_numColors = 0;
 300     m_bitmapMask = NULL;
 301     m_hBitmap = NULL ;
 302     m_hPict = NULL ;
 303     m_hIcon = NULL ;
 304     m_bitmapType = kMacBitmapTypeUnknownType ;
 305 }
 306
 307 // TODO move this do a public function of Bitmap Ref
 308 static void DisposeBitmapRefData(wxBitmapRefData *data)
 309 {
 310     switch (data->m_bitmapType)
 311     {
 312         case kMacBitmapTypePict :
 313             {
 314                 if ( data->m_hPict )
 315                 {
 316                     KillPicture( data->m_hPict ) ;
 317                     data->m_hPict = NULL ;
 318                 }
 319             }
 320             break ;
 321         case kMacBitmapTypeGrafWorld :
 322             {
 323                 if ( data->m_hBitmap )
 324                 {
 325                     wxMacDestroyGWorld( data->m_hBitmap ) ;
 326                     data->m_hBitmap = NULL ;
 327                 }
 328             }
 329             break ;
 330         case kMacBitmapTypeIcon :
 331             if ( data->m_hIcon )
 332             {
 333                 DisposeCIcon( data->m_hIcon ) ;
 334                 data->m_hIcon = NULL ;
 335             }
 336
 337         default :
 338             // unkown type ?
 339             break ;
 340     }
 341
 342   if (data->m_bitmapMask)
 343   {
 344     delete data->m_bitmapMask;
 345     data->m_bitmapMask = NULL;
 346   }
 347 }
 348
 349 wxBitmapRefData::~wxBitmapRefData()
 350 {
 351   DisposeBitmapRefData( this ) ;
 352 }
 353
 354 bool wxBitmap::CopyFromIcon(const wxIcon& icon)
 355 {
 356     Ref(icon) ;
 357     return true;
 358 }
 359
 360 wxBitmap::wxBitmap()
 361 {
 362     m_refData = NULL;
 363 }
 364
 365 wxBitmap::~wxBitmap()
 366 {
 367 }
 368
 369 wxBitmap::wxBitmap(const char bits[], int the_width, int the_height, int no_bits)
 370 {
 371     m_refData = new wxBitmapRefData;
 372
 373     M_BITMAPDATA->m_width = the_width ;
 374     M_BITMAPDATA->m_height = the_height ;
 375     M_BITMAPDATA->m_depth = no_bits ;
 376     M_BITMAPDATA->m_numColors = 0;
 377     if ( no_bits == 1 )
 378     {
 379         M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
 380         M_BITMAPDATA->m_hBitmap = wxMacCreateGWorld( the_width , the_height , no_bits ) ;
 381         M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_hBitmap != NULL ) ;
 382
 383         CGrafPtr    origPort ;
 384         GDHandle    origDevice ;
 385
 386         GetGWorld( &origPort , &origDevice ) ;
 387         SetGWorld( M_BITMAPDATA->m_hBitmap , NULL ) ;
 388         LockPixels( GetGWorldPixMap( M_BITMAPDATA->m_hBitmap ) ) ;
 389
 390         // bits is a char array
 391
 392         unsigned char* linestart = (unsigned char*) bits ;
 393         int linesize = ( the_width / (sizeof(unsigned char) * 8)) ;
 394         if ( the_width % (sizeof(unsigned char) * 8) ) {
 395             linesize += sizeof(unsigned char);
 396         }
 397
 398         RGBColor colors[2] = {
 399             { 0xFFFF , 0xFFFF , 0xFFFF } ,
 400             { 0, 0 , 0 }
 401         } ;
 402
 403         for ( int y = 0 ; y < the_height ; ++y , linestart += linesize )
 404         {
 405             for ( int x = 0 ; x < the_width ; ++x )
 406             {
 407                 int index = x / 8 ;
 408                 int bit = x % 8 ;
 409                 int mask = 1 << bit ;
 410                 if ( linestart[index] & mask )
 411                 {
 412                     SetCPixel( x , y , &colors[1] ) ;
 413                 }
 414                 else
 415                 {
 416                     SetCPixel( x , y , &colors[0] ) ;
 417                 }
 418             }
 419         }
 420         UnlockPixels( GetGWorldPixMap( M_BITMAPDATA->m_hBitmap ) ) ;
 421
 422         SetGWorld( origPort , origDevice ) ;
 423     }
 424     else
 425     {
 426         wxFAIL_MSG(wxT("multicolor BITMAPs not yet implemented"));
 427     }
 428 }
 429
 430 wxBitmap::wxBitmap(int w, int h, int d)
 431 {
 432     (void)Create(w, h, d);
 433 }
 434
 435 wxBitmap::wxBitmap(void *data, wxBitmapType type, int width, int height, int depth)
 436 {
 437     (void) Create(data, type, width, height, depth);
 438 }
 439
 440 wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type)
 441 {
 442     LoadFile(filename, type);
 443 }
 444
 445 bool wxBitmap::CreateFromXpm(const char **bits)
 446 {
 447     wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") )
 448     wxXPMDecoder decoder;
 449     wxImage img = decoder.ReadData(bits);
 450     wxCHECK_MSG( img.Ok(), FALSE, wxT("invalid bitmap data") )
 451     *this = wxBitmap(img);
 452     return TRUE;
 453 }
 454
 455 wxBitmap::wxBitmap(const char **bits)
 456 {
 457     (void) CreateFromXpm(bits);
 458 }
 459
 460 wxBitmap::wxBitmap(char **bits)
 461 {
 462     (void) CreateFromXpm((const char **)bits);
 463 }
 464
 465 wxBitmap wxBitmap::GetSubBitmap(const wxRect &rect) const
 466 {
 467    wxCHECK_MSG( Ok() &&
 468                 (rect.x >= 0) && (rect.y >= 0) &&
 469                 (rect.x+rect.width <= GetWidth()) &&
 470                 (rect.y+rect.height <= GetHeight()),
 471                 wxNullBitmap, wxT("invalid bitmap or bitmap region") );
 472
 473
 474    wxBitmap ret( rect.width, rect.height, GetDepth() );
 475    wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
 476
 477    WXHBITMAP origPort;
 478    GDHandle  origDevice;
 479
 480    GetGWorld( &origPort, &origDevice );
 481
 482    // Update the subbitmaps reference data
 483    wxBitmapRefData *ref = (wxBitmapRefData *)ret.GetRefData();
 484
 485    ref->m_numColors     = M_BITMAPDATA->m_numColors;
 486    ref->m_bitmapPalette = M_BITMAPDATA->m_bitmapPalette;
 487    ref->m_bitmapType    = M_BITMAPDATA->m_bitmapType;
 488
 489    // Copy sub region of this bitmap
 490    if(M_BITMAPDATA->m_bitmapType == kMacBitmapTypePict)
 491    {
 492        printf("GetSubBitmap:  Copy a region of a Pict structure - TODO\n");
 493    }
 494    else if(M_BITMAPDATA->m_bitmapType == kMacBitmapTypeGrafWorld)
 495    {
 496        // Copy mask
 497        if(GetMask())
 498        {
 499            WXHBITMAP submask, mask;
 500            RGBColor  color;
 501
 502            mask = GetMask()->GetMaskBitmap();
 503            submask = wxMacCreateGWorld(rect.width, rect.height, 1);
 504            LockPixels(GetGWorldPixMap(mask));
 505            LockPixels(GetGWorldPixMap(submask));
 506
 507            for(int yy = 0; yy < rect.height; yy++)
 508            {
 509                for(int xx = 0; xx < rect.width; xx++)
 510                {
 511                    SetGWorld(mask, NULL);
 512                    GetCPixel(rect.x + xx, rect.y + yy, &color);
 513                    SetGWorld(submask, NULL);
 514                    SetCPixel(xx,yy, &color);
 515                }
 516            }
 517            UnlockPixels(GetGWorldPixMap(mask));
 518            UnlockPixels(GetGWorldPixMap(submask));
 519            ref->m_bitmapMask = new wxMask;
 520            ref->m_bitmapMask->SetMaskBitmap(submask);
 521        }
 522
 523        // Copy bitmap
 524        if(GetHBITMAP())
 525        {
 526            WXHBITMAP subbitmap, bitmap;
 527            RGBColor  color;
 528
 529            bitmap = GetHBITMAP();
 530            subbitmap = ref->m_hBitmap ;
 531            LockPixels(GetGWorldPixMap(bitmap));
 532            LockPixels(GetGWorldPixMap(subbitmap));
 533
 534            for(int yy = 0; yy < rect.height; yy++)
 535            {
 536                for(int xx = 0; xx < rect.width; xx++)
 537                {
 538                    SetGWorld(bitmap, NULL);
 539                    GetCPixel(rect.x + xx, rect.y + yy, &color);
 540                    SetGWorld(subbitmap, NULL);
 541                    SetCPixel(xx, yy, &color);
 542                }
 543            }
 544            UnlockPixels(GetGWorldPixMap(bitmap));
 545            UnlockPixels(GetGWorldPixMap(subbitmap));
 546        }
 547    }
 548    SetGWorld( origPort, origDevice );
 549
 550    return ret;
 551 }
 552
 553 bool wxBitmap::Create(int w, int h, int d)
 554 {
 555     UnRef();
 556
 557     m_refData = new wxBitmapRefData;
 558
 559     M_BITMAPDATA->m_width = w;
 560     M_BITMAPDATA->m_height = h;
 561     M_BITMAPDATA->m_depth = d;
 562
 563     M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
 564     M_BITMAPDATA->m_hBitmap = wxMacCreateGWorld( w , h , d ) ;
 565     M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_hBitmap != NULL ) ;
 566     return M_BITMAPDATA->m_ok;
 567 }
 568
 569 int wxBitmap::GetBitmapType() const
 570 {
 571    wxCHECK_MSG( Ok(), kMacBitmapTypeUnknownType, wxT("invalid bitmap") );
 572
 573    return M_BITMAPDATA->m_bitmapType;
 574 }
 575
 576 void wxBitmap::SetHBITMAP(WXHBITMAP bmp)
 577 {
 578     DisposeBitmapRefData( M_BITMAPDATA ) ;
 579
 580     M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
 581     M_BITMAPDATA->m_hBitmap = bmp ;
 582       M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_hBitmap != NULL ) ;
 583 }
 584
 585 bool wxBitmap::LoadFile(const wxString& filename, wxBitmapType type)
 586 {
 587     UnRef();
 588
 589     wxBitmapHandler *handler = FindHandler(type);
 590
 591     if ( handler )
 592     {
 593         m_refData = new wxBitmapRefData;
 594
 595         return handler->LoadFile(this, filename, type, -1, -1);
 596     }
 597     else
 598     {
 599         wxImage loadimage(filename, type);
 600         if (loadimage.Ok()) {
 601             *this = loadimage;
 602             return true;
 603         }
 604     }
 605     wxLogWarning("no bitmap handler for type %d defined.", type);
 606     return false;
 607 }
 608
 609 bool wxBitmap::Create(void *data, wxBitmapType type, int width, int height, int depth)
 610 {
 611     UnRef();
 612
 613     m_refData = new wxBitmapRefData;
 614
 615     wxBitmapHandler *handler = FindHandler(type);
 616
 617     if ( handler == NULL ) {
 618         wxLogWarning("no bitmap handler for type %d defined.", type);
 619
 620         return FALSE;
 621     }
 622
 623     return handler->Create(this, data, type, width, height, depth);
 624 }
 625
 626 wxBitmap::wxBitmap(const wxImage& image, int depth)
 627 {
 628     wxCHECK_RET( image.Ok(), wxT("invalid image") )
 629     wxCHECK_RET( depth == -1, wxT("invalid bitmap depth") )
 630
 631     m_refData = new wxBitmapRefData();
 632
 633     // width and height of the device-dependent bitmap
 634     int width = image.GetWidth();
 635     int height = image.GetHeight();
 636
 637     // Create picture
 638
 639     Create( width , height , 32 ) ;
 640
 641     CGrafPtr origPort ;
 642     GDHandle origDevice ;
 643
 644     PixMapHandle pixMap = GetGWorldPixMap(GetHBITMAP()) ;
 645     LockPixels( pixMap );
 646
 647     GetGWorld( &origPort , &origDevice ) ;
 648     SetGWorld( GetHBITMAP() , NULL ) ;
 649
 650     // Render image
 651     RGBColor colorRGB ;
 652
 653     register unsigned char* data = image.GetData();
 654     char* destinationBase = GetPixBaseAddr( pixMap );
 655     register unsigned char* destination = (unsigned char*) destinationBase ;
 656     for (int y = 0; y < height; y++)
 657     {
 658         for (int x = 0; x < width; x++)
 659         {
 660             *destination++ = 0 ;
 661             *destination++ = *data++ ;
 662             *destination++ = *data++ ;
 663             *destination++ = *data++ ;
 664         }
 665         destinationBase += ((**pixMap).rowBytes & 0x7fff);
 666         destination = (unsigned char*) destinationBase ;
 667     }
 668     if ( image.HasMask() )
 669     {
 670       data = image.GetData();
 671
 672       wxColour maskcolor(image.GetMaskRed(), image.GetMaskGreen(), image.GetMaskBlue());
 673       RGBColor white = { 0xffff, 0xffff, 0xffff };
 674       RGBColor black = { 0     , 0     , 0      };
 675       wxBitmap maskBitmap ;
 676
 677       maskBitmap.Create( width, height, 1);
 678       LockPixels( GetGWorldPixMap(maskBitmap.GetHBITMAP()) );
 679       SetGWorld(maskBitmap.GetHBITMAP(), NULL);
 680
 681       for (int y = 0; y < height; y++)
 682       {
 683           for (int x = 0; x < width; x++)
 684           {
 685               if ( data[0] == image.GetMaskRed() && data[1] == image.GetMaskGreen() && data[2] == image.GetMaskBlue() )
 686               {
 687                 SetCPixel(x,y, &white);
 688               }
 689               else {
 690                       SetCPixel(x,y, &black);
 691               }
 692               data += 3 ;
 693           }
 694       }  // for height
 695       SetGWorld(GetHBITMAP(), NULL);
 696       SetMask(new wxMask( maskBitmap ));
 697       UnlockPixels( GetGWorldPixMap(maskBitmap.GetHBITMAP()) );
 698     }
 699
 700     UnlockPixels( GetGWorldPixMap(GetHBITMAP()) );
 701     SetGWorld( origPort, origDevice );
 702 }
 703
 704 wxImage wxBitmap::ConvertToImage() const
 705 {
 706     wxImage image;
 707
 708     wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
 709
 710     // create an wxImage object
 711     int width = GetWidth();
 712     int height = GetHeight();
 713     image.Create( width, height );
 714
 715     unsigned char *data = image.GetData();
 716
 717     wxCHECK_MSG( data, wxNullImage, wxT("Could not allocate data for image") );
 718
 719     WXHBITMAP origPort;
 720     GDHandle  origDevice;
 721     int      index;
 722     RGBColor color;
 723     // background color set to RGB(16,16,16) in consistent with wxGTK
 724     unsigned char mask_r=16, mask_g=16, mask_b=16;
 725     SInt16   r,g,b;
 726     wxMask  *mask = GetMask();
 727
 728     GetGWorld( &origPort, &origDevice );
 729     LockPixels(GetGWorldPixMap(GetHBITMAP()));
 730     SetGWorld( GetHBITMAP(), NULL);
 731
 732     // Copy data into image
 733     index = 0;
 734     for (int yy = 0; yy < height; yy++)
 735     {
 736         for (int xx = 0; xx < width; xx++)
 737         {
 738             GetCPixel(xx,yy, &color);
 739             r = ((color.red ) >> 8);
 740             g = ((color.green ) >> 8);
 741             b = ((color.blue ) >> 8);
 742             data[index    ] = r;
 743             data[index + 1] = g;
 744             data[index + 2] = b;
 745             if (mask)
 746             {
 747                 if (mask->PointMasked(xx,yy))
 748                 {
 749                     data[index    ] = mask_r;
 750                     data[index + 1] = mask_g;
 751                     data[index + 2] = mask_b;
 752                 }
 753             }
 754             index += 3;
 755         }
 756     }
 757     if (mask)
 758     {
 759         image.SetMaskColour( mask_r, mask_g, mask_b );
 760         image.SetMask( true );
 761     }
 762
 763     // Free resources
 764     UnlockPixels(GetGWorldPixMap(GetHBITMAP()));
 765     SetGWorld(origPort, origDevice);
 766
 767     return image;
 768 }
 769
 770
 771 bool wxBitmap::SaveFile(const wxString& filename, wxBitmapType type,
 772                         const wxPalette *palette) const
 773 {
 774     wxBitmapHandler *handler = FindHandler(type);
 775
 776     if ( handler )
 777     {
 778         return handler->SaveFile(this, filename, type, palette);
 779     }
 780     else
 781     {
 782         wxImage image = ConvertToImage();
 783
 784         return image.SaveFile(filename, type);
 785     }
 786
 787     wxLogWarning("no bitmap handler for type %d defined.", type);
 788     return false;
 789 }
 790
 791 bool wxBitmap::Ok() const
 792 {
 793    return (M_BITMAPDATA && M_BITMAPDATA->m_ok);
 794 }
 795
 796 int wxBitmap::GetHeight() const
 797 {
 798    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 799
 800    return M_BITMAPDATA->m_height;
 801 }
 802
 803 int wxBitmap::GetWidth() const
 804 {
 805    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 806
 807    return M_BITMAPDATA->m_width;
 808 }
 809
 810 int wxBitmap::GetDepth() const
 811 {
 812    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 813
 814    return M_BITMAPDATA->m_depth;
 815 }
 816
 817 int wxBitmap::GetQuality() const
 818 {
 819    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 820
 821    return M_BITMAPDATA->m_quality;
 822 }
 823
 824 wxMask *wxBitmap::GetMask() const
 825 {
 826    wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
 827
 828    return M_BITMAPDATA->m_bitmapMask;
 829 }
 830
 831 void wxBitmap::SetWidth(int w)
 832 {
 833     if (!M_BITMAPDATA)
 834         m_refData = new wxBitmapRefData;
 835
 836     M_BITMAPDATA->m_width = w;
 837 }
 838
 839 void wxBitmap::SetHeight(int h)
 840 {
 841     if (!M_BITMAPDATA)
 842         m_refData = new wxBitmapRefData;
 843
 844     M_BITMAPDATA->m_height = h;
 845 }
 846
 847 void wxBitmap::SetDepth(int d)
 848 {
 849     if (!M_BITMAPDATA)
 850         m_refData = new wxBitmapRefData;
 851
 852     M_BITMAPDATA->m_depth = d;
 853 }
 854
 855 void wxBitmap::SetQuality(int q)
 856 {
 857     if (!M_BITMAPDATA)
 858         m_refData = new wxBitmapRefData;
 859
 860     M_BITMAPDATA->m_quality = q;
 861 }
 862
 863 void wxBitmap::SetOk(bool isOk)
 864 {
 865     if (!M_BITMAPDATA)
 866         m_refData = new wxBitmapRefData;
 867
 868     M_BITMAPDATA->m_ok = isOk;
 869 }
 870
 871 wxPalette *wxBitmap::GetPalette() const
 872 {
 873    wxCHECK_MSG( Ok(), NULL, wxT("Invalid bitmap  GetPalette()") );
 874
 875    return &M_BITMAPDATA->m_bitmapPalette;
 876 }
 877
 878 void wxBitmap::SetPalette(const wxPalette& palette)
 879 {
 880     if (!M_BITMAPDATA)
 881         m_refData = new wxBitmapRefData;
 882
 883     M_BITMAPDATA->m_bitmapPalette = palette ;
 884 }
 885
 886 void wxBitmap::SetMask(wxMask *mask)
 887 {
 888     if (!M_BITMAPDATA)
 889         m_refData = new wxBitmapRefData;
 890
 891     // Remove existing mask if there is one.
 892     if (M_BITMAPDATA->m_bitmapMask)
 893         delete M_BITMAPDATA->m_bitmapMask;
 894
 895     M_BITMAPDATA->m_bitmapMask = mask ;
 896 }
 897
 898 WXHBITMAP wxBitmap::GetHBITMAP() const
 899 {
 900    wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
 901
 902    return M_BITMAPDATA->m_hBitmap;
 903 }
 904
 905 PicHandle wxBitmap::GetPict() const
 906 {
 907    wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
 908
 909    PicHandle picture;       // This is the returned picture
 910
 911    // If bitmap already in Pict format return pointer
 912    if(M_BITMAPDATA->m_bitmapType == kMacBitmapTypePict) {
 913        return M_BITMAPDATA->m_hPict;
 914    }
 915    else if(M_BITMAPDATA->m_bitmapType != kMacBitmapTypeGrafWorld) {
 916        // Invalid bitmap
 917        return NULL;
 918    }
 919
 920    RGBColor  gray = { 0xCCCC ,0xCCCC , 0xCCCC } ;
 921    RGBColor  white = { 0xffff ,0xffff , 0xffff } ;
 922    RGBColor  black = { 0x0000 ,0x0000 , 0x0000 } ;
 923    CGrafPtr  origPort;
 924    GDHandle  origDev ;
 925    wxMask   *mask;
 926    Rect      portRect ;
 927
 928    GetPortBounds( GetHBITMAP() , &portRect ) ;
 929    int width = portRect.right - portRect.left ;
 930    int height = portRect.bottom - portRect.top ;
 931
 932    LockPixels( GetGWorldPixMap( GetHBITMAP() ) ) ;
 933    GetGWorld( &origPort , &origDev ) ;
 934
 935    mask = GetMask();
 936
 937    SetGWorld( GetHBITMAP() , NULL ) ;
 938
 939    picture = OpenPicture(&portRect);   // open a picture, this disables drawing
 940    if(!picture) {
 941        return NULL;
 942    }
 943
 944    if( mask )
 945    {
 946 #ifdef __DARWIN__
 947        RGBColor trans = white;
 948 #else
 949        RGBBackColor( &gray );
 950        EraseRect( &portRect );
 951        RGBColor trans = gray;
 952 #endif
 953        RGBForeColor( &black ) ;
 954        RGBBackColor( &white ) ;
 955        PenMode(transparent);
 956
 957        for ( int y = 0 ; y < height ; ++y )
 958        {
 959            for( int x = 0 ; x < width ; ++x )
 960            {
 961                if ( !mask->PointMasked(x,y) )
 962                {
 963                    RGBColor col ;
 964
 965                    GetCPixel( x + portRect.left , y + portRect.top , &col ) ;
 966                    SetCPixel( x + portRect.left , y + portRect.top , &col ) ;
 967                }
 968                else {
 969                    // With transparency this sets a blank pixel
 970                    SetCPixel( x + portRect.left , y + portRect.top , &trans);
 971                }
 972            }
 973        }
 974    }
 975    else
 976    {
 977        RGBBackColor( &gray ) ;
 978        EraseRect(&portRect);
 979        RGBForeColor( &black ) ;
 980        RGBBackColor( &white ) ;
 981
 982        CopyBits(GetPortBitMapForCopyBits(GetHBITMAP()),
 983                 // src PixMap - we copy image over itself -
 984                 GetPortBitMapForCopyBits(GetHBITMAP()),
 985                 //  dst PixMap - no drawing occurs
 986                 &portRect,    // srcRect - it will be recorded and compressed -
 987                 &portRect,    // dstRect - into the picture that is open -
 988                 srcCopy,NULL); // copyMode and no clip region
 989    }
 990    ClosePicture();                  // We are done recording the picture
 991    UnlockPixels( GetGWorldPixMap( GetHBITMAP() ) ) ;
 992    SetGWorld( origPort , origDev ) ;
 993
 994    return picture;                  // return our groovy pict handle
 995 }
 996
 997 /*
 998  * wxMask
 999  */
1000
1001 wxMask::wxMask()
1002 {
1003     m_maskBitmap = 0;
1004 }
1005
1006 // Construct a mask from a bitmap and a colour indicating
1007 // the transparent area
1008 wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour)
1009 {
1010     m_maskBitmap = 0;
1011     Create(bitmap, colour);
1012 }
1013
1014 // Construct a mask from a bitmap and a palette index indicating
1015 // the transparent area
1016 wxMask::wxMask(const wxBitmap& bitmap, int paletteIndex)
1017 {
1018     m_maskBitmap = 0;
1019     Create(bitmap, paletteIndex);
1020 }
1021
1022 // Construct a mask from a mono bitmap (copies the bitmap).
1023 wxMask::wxMask(const wxBitmap& bitmap)
1024 {
1025     m_maskBitmap = 0;
1026     Create(bitmap);
1027 }
1028
1029 wxMask::~wxMask()
1030 {
1031     if ( m_maskBitmap )
1032     {
1033         wxMacDestroyGWorld( m_maskBitmap ) ;
1034         m_maskBitmap = NULL ;
1035     }
1036 }
1037
1038 // Create a mask from a mono bitmap (copies the bitmap).
1039 bool wxMask::Create(const wxBitmap& bitmap)
1040 {
1041    if ( m_maskBitmap )
1042    {
1043        wxMacDestroyGWorld( m_maskBitmap ) ;
1044        m_maskBitmap = NULL ;
1045    }
1046    wxCHECK_MSG( bitmap.GetBitmapType() == kMacBitmapTypeGrafWorld, false,
1047                 wxT("Cannot create mask from this bitmap type (TODO)"));
1048    // other types would require a temporary bitmap. not yet implemented
1049
1050    wxCHECK_MSG( bitmap.Ok(), false, wxT("Invalid bitmap"));
1051
1052    wxCHECK_MSG(bitmap.GetDepth() == 1, false,
1053                wxT("Cannot create mask from colour bitmap"));
1054
1055    m_maskBitmap = wxMacCreateGWorld(bitmap.GetWidth(), bitmap.GetHeight(), 1);
1056    Rect rect = { 0,0, bitmap.GetHeight(), bitmap.GetWidth() };
1057
1058    LockPixels( GetGWorldPixMap(m_maskBitmap) );
1059    LockPixels( GetGWorldPixMap(bitmap.GetHBITMAP()) );
1060    CopyBits(GetPortBitMapForCopyBits(bitmap.GetHBITMAP()),
1061             GetPortBitMapForCopyBits(m_maskBitmap),
1062             &rect, &rect, srcCopy, 0);
1063    UnlockPixels( GetGWorldPixMap(m_maskBitmap) );
1064    UnlockPixels( GetGWorldPixMap(bitmap.GetHBITMAP()) );
1065
1066    return FALSE;
1067 }
1068
1069 // Create a mask from a bitmap and a palette index indicating
1070 // the transparent area
1071 bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex)
1072 {
1073 // TODO
1074     wxCHECK_MSG( 0, false, wxT("Not implemented"));
1075     return FALSE;
1076 }
1077
1078 // Create a mask from a bitmap and a colour indicating
1079 // the transparent area
1080 bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour)
1081 {
1082     if ( m_maskBitmap )
1083     {
1084         wxMacDestroyGWorld( m_maskBitmap ) ;
1085         m_maskBitmap = NULL ;
1086     }
1087     wxCHECK_MSG( bitmap.GetBitmapType() == kMacBitmapTypeGrafWorld, false,
1088                  wxT("Cannot create mask from this bitmap type (TODO)"));
1089     // other types would require a temporary bitmap. not yet implemented
1090
1091     wxCHECK_MSG( bitmap.Ok(), false, wxT("Illigal bitmap"));
1092
1093     m_maskBitmap = wxMacCreateGWorld( bitmap.GetWidth() , bitmap.GetHeight() , 1 );
1094     LockPixels( GetGWorldPixMap( m_maskBitmap ) );
1095     LockPixels( GetGWorldPixMap( bitmap.GetHBITMAP() ) );
1096     RGBColor maskColor = colour.GetPixel();
1097
1098     // this is not very efficient, but I can't think
1099     // of a better way of doing it
1100     CGrafPtr    origPort ;
1101     GDHandle    origDevice ;
1102     RGBColor  col;
1103     RGBColor  colors[2] = {
1104         { 0xFFFF, 0xFFFF, 0xFFFF },
1105         { 0,      0,      0 }};
1106
1107     GetGWorld( &origPort , &origDevice ) ;
1108     for (int w = 0; w < bitmap.GetWidth(); w++)
1109     {
1110         for (int h = 0; h < bitmap.GetHeight(); h++)
1111         {
1112             SetGWorld( bitmap.GetHBITMAP(), NULL ) ;
1113             GetCPixel( w , h , &col ) ;
1114             SetGWorld( m_maskBitmap , NULL ) ;
1115             if (col.red == maskColor.red && col.green == maskColor.green && col.blue == maskColor.blue)
1116             {
1117                 SetCPixel( w , h , &colors[0] ) ;
1118             }
1119             else
1120             {
1121                 SetCPixel( w , h , &colors[1] ) ;
1122             }
1123         }
1124     }
1125     UnlockPixels( GetGWorldPixMap( (CGrafPtr) m_maskBitmap ) ) ;
1126     UnlockPixels( GetGWorldPixMap( bitmap.GetHBITMAP() ) ) ;
1127     SetGWorld( origPort , origDevice ) ;
1128
1129     return TRUE;
1130 }
1131
1132 bool wxMask::PointMasked(int x, int y)
1133 {
1134    WXHBITMAP origPort;
1135    GDHandle  origDevice;
1136    RGBColor  color;
1137    bool masked = true;
1138
1139    GetGWorld( &origPort, &origDevice);
1140
1141    //Set port to mask and see if it masked (1) or not ( 0 )
1142    SetGWorld(m_maskBitmap, NULL);
1143    LockPixels(GetGWorldPixMap(m_maskBitmap));
1144    GetCPixel(x,y, &color);
1145    masked = !(color.red == 0 && color.green == 0 && color.blue == 0);
1146    UnlockPixels(GetGWorldPixMap(m_maskBitmap));
1147
1148    SetGWorld( origPort, origDevice);
1149
1150    return masked;
1151 }
1152
1153 /*
1154  * wxBitmapHandler
1155  */
1156
1157 bool wxBitmapHandler::Create(wxBitmap *bitmap, void *data, long type, int width, int height, int depth)
1158 {
1159     return FALSE;
1160 }
1161
1162 bool wxBitmapHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1163         int desiredWidth, int desiredHeight)
1164 {
1165     return FALSE;
1166 }
1167
1168 bool wxBitmapHandler::SaveFile(const wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette)
1169 {
1170     return FALSE;
1171 }
1172
1173 /*
1174  * Standard handlers
1175  */
1176
1177 class WXDLLEXPORT wxPICTResourceHandler: public wxBitmapHandler
1178 {
1179     DECLARE_DYNAMIC_CLASS(wxPICTResourceHandler)
1180 public:
1181     inline wxPICTResourceHandler()
1182     {
1183         m_name = "Macintosh Pict resource";
1184         m_extension = "";
1185         m_type = wxBITMAP_TYPE_PICT_RESOURCE;
1186     };
1187
1188     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1189           int desiredWidth, int desiredHeight);
1190 };
1191 IMPLEMENT_DYNAMIC_CLASS(wxPICTResourceHandler, wxBitmapHandler)
1192
1193 bool  wxPICTResourceHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1194           int desiredWidth, int desiredHeight)
1195 {
1196     Str255 theName ;
1197
1198 #if TARGET_CARBON
1199     c2pstrcpy( (StringPtr) theName , name ) ;
1200 #else
1201     strcpy( (char *) theName , name ) ;
1202     c2pstr( (char *)theName ) ;
1203 #endif
1204
1205     PicHandle thePict = (PicHandle ) GetNamedResource( 'PICT' , theName ) ;
1206     if ( thePict )
1207     {
1208         PictInfo theInfo ;
1209
1210         GetPictInfo( thePict , &theInfo , 0 , 0 , systemMethod , 0 ) ;
1211         DetachResource( (Handle) thePict ) ;
1212         M_BITMAPHANDLERDATA->m_bitmapType = kMacBitmapTypePict ;
1213         M_BITMAPHANDLERDATA->m_hPict = thePict ;
1214         M_BITMAPHANDLERDATA->m_width =  theInfo.sourceRect.right - theInfo.sourceRect.left ;
1215         M_BITMAPHANDLERDATA->m_height = theInfo.sourceRect.bottom - theInfo.sourceRect.top ;
1216
1217         M_BITMAPHANDLERDATA->m_depth = theInfo.depth ;
1218         M_BITMAPHANDLERDATA->m_ok = true ;
1219         M_BITMAPHANDLERDATA->m_numColors = theInfo.uniqueColors ;
1220 //      M_BITMAPHANDLERDATA->m_bitmapPalette;
1221 //      M_BITMAPHANDLERDATA->m_quality;
1222         return TRUE ;
1223     }
1224     return FALSE ;
1225 }
1226
1227 void wxBitmap::InitStandardHandlers()
1228 {
1229     AddHandler(new wxPICTResourceHandler) ;
1230     AddHandler(new wxICONResourceHandler) ;
1231 }