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/setup.h"
  17 #include "wx/utils.h"
  18 #include "wx/palette.h"
  19 #include "wx/bitmap.h"
  20 #include "wx/icon.h"
  21 #include "wx/log.h"
  22
  23 extern "C"
  24 {
  25         #include "xpm.h"
  26 } ;
  27
  28 #if !USE_SHARED_LIBRARIES
  29 IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject)
  30 IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
  31 #endif
  32
  33 #include <PictUtils.h>
  34
  35 CTabHandle wxMacCreateColorTable( int numColors )
  36 {
  37         CTabHandle newColors; /* Handle to the new color table */
  38         short index; /* Index into the table of colors */
  39         /* Allocate memory for the color table */
  40         newColors = (CTabHandle)NewHandleClear( sizeof (ColorTable) +
  41         sizeof (ColorSpec) * (numColors - 1) );
  42         if (newColors != nil)
  43         {
  44                 /* Initialize the fields */
  45                 (**newColors).ctSeed = GetCTSeed();
  46                 (**newColors).ctFlags = 0;
  47                 (**newColors).ctSize = numColors - 1;
  48                 /* Initialize the table of colors */
  49         }
  50         return newColors ;
  51 }
  52
  53 void wxMacDestroyColorTable( CTabHandle colors )
  54 {
  55         DisposeHandle( (Handle) colors ) ;
  56 }
  57
  58 void wxMacSetColorTableEntry( CTabHandle newColors , int index , int red , int green ,  int blue )
  59 {
  60         (**newColors).ctTable[index].value = index;
  61         (**newColors).ctTable[index].rgb.red = 0 ;// someRedValue;
  62         (**newColors).ctTable[index].rgb.green = 0 ; // someGreenValue;
  63         (**newColors).ctTable[index].rgb.blue = 0 ; // someBlueValue;
  64 }
  65
  66 GWorldPtr wxMacCreateGWorld( int height , int width , int depth )
  67 {
  68         OSErr err = noErr ;
  69         GWorldPtr port ;
  70         Rect rect = { 0 , 0 , width , height } ;
  71
  72         if ( depth < 0 )
  73         {
  74                 depth = wxDisplayDepth() ;
  75         }
  76
  77         err = NewGWorld( &port , depth , &rect , NULL , NULL , 0 ) ;
  78         if ( err == noErr )
  79         {
  80                 return port ;
  81         }
  82         return NULL ;
  83 }
  84
  85 void wxMacDestroyGWorld( GWorldPtr gw )
  86 {
  87         if ( gw )
  88                 DisposeGWorld( gw ) ;
  89 }
  90
  91 wxBitmapRefData::wxBitmapRefData()
  92 {
  93     m_ok = FALSE;
  94     m_width = 0;
  95     m_height = 0;
  96     m_depth = 0;
  97     m_quality = 0;
  98     m_numColors = 0;
  99     m_bitmapMask = NULL;
 100                 m_hBitmap = NULL ;
 101                 m_hPict = NULL ;
 102                 m_bitmapType = kMacBitmapTypeUnknownType ;
 103 }
 104
 105 wxBitmapRefData::~wxBitmapRefData()
 106 {
 107         switch (m_bitmapType)
 108         {
 109                 case kMacBitmapTypePict :
 110                         {
 111                                 if ( m_hPict )
 112                                 {
 113                                         KillPicture( m_hPict ) ;
 114                                         m_hPict = NULL ;
 115                                 }
 116                         }
 117                         break ;
 118                 case kMacBitmapTypeGrafWorld :
 119                         {
 120                                 if ( m_hBitmap )
 121                                 {
 122                                         wxMacDestroyGWorld( m_hBitmap ) ;
 123                                         m_hBitmap = NULL ;
 124                                 }
 125                         }
 126                         break ;
 127                 default :
 128                         // unkown type ?
 129                         break ;
 130         } ;
 131
 132   if (m_bitmapMask)
 133   {
 134     delete m_bitmapMask;
 135     m_bitmapMask = NULL;
 136   }
 137 }
 138
 139 wxList wxBitmap::sm_handlers;
 140
 141 wxBitmap::wxBitmap()
 142 {
 143     m_refData = NULL;
 144
 145     if ( wxTheBitmapList )
 146         wxTheBitmapList->AddBitmap(this);
 147 }
 148
 149 wxBitmap::~wxBitmap()
 150 {
 151     if (wxTheBitmapList)
 152         wxTheBitmapList->DeleteObject(this);
 153 }
 154
 155 wxBitmap::wxBitmap(const char bits[], int the_width, int the_height, int no_bits)
 156 {
 157     m_refData = new wxBitmapRefData;
 158
 159     M_BITMAPDATA->m_width = the_width ;
 160     M_BITMAPDATA->m_height = the_height ;
 161     M_BITMAPDATA->m_depth = no_bits ;
 162     M_BITMAPDATA->m_numColors = 0;
 163                 if ( no_bits == 1 )
 164                 {
 165             M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
 166             M_BITMAPDATA->m_hBitmap = wxMacCreateGWorld( the_width , the_height , no_bits ) ;
 167                         M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_hBitmap != NULL ) ;
 168
 169                         CGrafPtr        origPort ;
 170                         GDHandle        origDevice ;
 171
 172                         GetGWorld( &origPort , &origDevice ) ;
 173                         SetGWorld( M_BITMAPDATA->m_hBitmap , NULL ) ;
 174                         LockPixels( GetGWorldPixMap( (CGrafPtr) M_BITMAPDATA->m_hBitmap ) ) ;
 175
 176                         // bits is a word aligned array
 177
 178                         unsigned char* linestart = (unsigned char*) bits ;
 179                         int linesize = ( the_width / 16 ) * 2  ;
 180                         if ( the_width % 16 )
 181                         {
 182                                 linesize += 2 ;
 183                         } ;
 184
 185                         RGBColor colors[2] = {
 186                                 { 0xFFFF , 0xFFFF , 0xFFFF } ,
 187                                 { 0, 0 , 0 }
 188                                 } ;
 189
 190                         for( int y = 0 ; y < the_height ; ++y , linestart += linesize )
 191                         {
 192                                 for( int x = 0 ; x < the_width ; ++x )
 193                                 {
 194                                         int index = x / 8 ;
 195                                         int bit = x % 8 ;
 196                                         int mask = 1 << bit ;
 197                                         if ( linestart[index] & mask )
 198                                         {
 199                                                 SetCPixel( x , y , &colors[1] ) ;
 200                                         }
 201                                         else
 202                                         {
 203                                                 SetCPixel( x , y , &colors[0] ) ;
 204                                         }
 205                                 }
 206
 207                         }
 208                 UnlockPixels( GetGWorldPixMap( (CGrafPtr) M_BITMAPDATA->m_hBitmap ) ) ;
 209
 210                 SetGWorld( origPort , origDevice ) ;
 211            }
 212            else
 213            {
 214                                 //multicolor BITMAPs not yet implemented
 215            }
 216
 217     if ( wxTheBitmapList )
 218         wxTheBitmapList->AddBitmap(this);
 219 }
 220
 221 wxBitmap::wxBitmap(int w, int h, int d)
 222 {
 223     (void)Create(w, h, d);
 224
 225     if ( wxTheBitmapList )
 226         wxTheBitmapList->AddBitmap(this);
 227 }
 228
 229 wxBitmap::wxBitmap(void *data, long type, int width, int height, int depth)
 230 {
 231     (void) Create(data, type, width, height, depth);
 232
 233     if ( wxTheBitmapList )
 234         wxTheBitmapList->AddBitmap(this);
 235 }
 236
 237 wxBitmap::wxBitmap(const wxString& filename, long type)
 238 {
 239     LoadFile(filename, (int)type);
 240
 241     if ( wxTheBitmapList )
 242         wxTheBitmapList->AddBitmap(this);
 243 }
 244
 245 wxBitmap::wxBitmap(const char **data)
 246 {
 247     (void) Create((void *)data, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0);
 248 }
 249
 250 bool wxBitmap::Create(int w, int h, int d)
 251 {
 252     UnRef();
 253
 254     m_refData = new wxBitmapRefData;
 255
 256     M_BITMAPDATA->m_width = w;
 257     M_BITMAPDATA->m_height = h;
 258     M_BITMAPDATA->m_depth = d;
 259
 260     M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
 261     M_BITMAPDATA->m_hBitmap = wxMacCreateGWorld( w , h , d ) ;
 262                 M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_hBitmap != NULL ) ;
 263     return M_BITMAPDATA->m_ok;
 264 }
 265
 266 void wxBitmap::SetHBITMAP(WXHBITMAP bmp)
 267 {
 268     M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
 269     M_BITMAPDATA->m_hBitmap = bmp ;
 270                 M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_hBitmap != NULL ) ;
 271 }
 272
 273 bool wxBitmap::LoadFile(const wxString& filename, long type)
 274 {
 275     UnRef();
 276
 277     m_refData = new wxBitmapRefData;
 278
 279     wxBitmapHandler *handler = FindHandler(type);
 280
 281     if ( handler == NULL ) {
 282         wxLogWarning("no bitmap handler for type %d defined.", type);
 283
 284         return FALSE;
 285     }
 286
 287     return handler->LoadFile(this, filename, type, -1, -1);
 288 }
 289
 290 bool wxBitmap::Create(void *data, long type, int width, int height, int depth)
 291 {
 292     UnRef();
 293
 294     m_refData = new wxBitmapRefData;
 295
 296     wxBitmapHandler *handler = FindHandler(type);
 297
 298     if ( handler == NULL ) {
 299         wxLogWarning("no bitmap handler for type %d defined.", type);
 300
 301         return FALSE;
 302     }
 303
 304     return handler->Create(this, data, type, width, height, depth);
 305 }
 306
 307 bool wxBitmap::SaveFile(const wxString& filename, int type, const wxPalette *palette)
 308 {
 309     wxBitmapHandler *handler = FindHandler(type);
 310
 311     if ( handler == NULL ) {
 312         wxLogWarning("no bitmap handler for type %d defined.", type);
 313
 314         return FALSE;
 315   }
 316
 317   return handler->SaveFile(this, filename, type, palette);
 318 }
 319
 320 void wxBitmap::SetWidth(int w)
 321 {
 322     if (!M_BITMAPDATA)
 323         m_refData = new wxBitmapRefData;
 324
 325     M_BITMAPDATA->m_width = w;
 326 }
 327
 328 void wxBitmap::SetHeight(int h)
 329 {
 330     if (!M_BITMAPDATA)
 331         m_refData = new wxBitmapRefData;
 332
 333     M_BITMAPDATA->m_height = h;
 334 }
 335
 336 void wxBitmap::SetDepth(int d)
 337 {
 338     if (!M_BITMAPDATA)
 339         m_refData = new wxBitmapRefData;
 340
 341     M_BITMAPDATA->m_depth = d;
 342 }
 343
 344 void wxBitmap::SetQuality(int q)
 345 {
 346     if (!M_BITMAPDATA)
 347         m_refData = new wxBitmapRefData;
 348
 349     M_BITMAPDATA->m_quality = q;
 350 }
 351
 352 void wxBitmap::SetOk(bool isOk)
 353 {
 354     if (!M_BITMAPDATA)
 355         m_refData = new wxBitmapRefData;
 356
 357     M_BITMAPDATA->m_ok = isOk;
 358 }
 359
 360 void wxBitmap::SetPalette(const wxPalette& palette)
 361 {
 362     if (!M_BITMAPDATA)
 363         m_refData = new wxBitmapRefData;
 364
 365     M_BITMAPDATA->m_bitmapPalette = palette ;
 366 }
 367
 368 void wxBitmap::SetMask(wxMask *mask)
 369 {
 370     if (!M_BITMAPDATA)
 371         m_refData = new wxBitmapRefData;
 372
 373     M_BITMAPDATA->m_bitmapMask = mask ;
 374 }
 375
 376 void wxBitmap::AddHandler(wxBitmapHandler *handler)
 377 {
 378     sm_handlers.Append(handler);
 379 }
 380
 381 void wxBitmap::InsertHandler(wxBitmapHandler *handler)
 382 {
 383     sm_handlers.Insert(handler);
 384 }
 385
 386 bool wxBitmap::RemoveHandler(const wxString& name)
 387 {
 388     wxBitmapHandler *handler = FindHandler(name);
 389     if ( handler )
 390     {
 391         sm_handlers.DeleteObject(handler);
 392         return TRUE;
 393     }
 394     else
 395         return FALSE;
 396 }
 397
 398 wxBitmapHandler *wxBitmap::FindHandler(const wxString& name)
 399 {
 400     wxNode *node = sm_handlers.First();
 401     while ( node )
 402     {
 403         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 404         if ( handler->GetName() == name )
 405             return handler;
 406         node = node->Next();
 407     }
 408     return NULL;
 409 }
 410
 411 wxBitmapHandler *wxBitmap::FindHandler(const wxString& extension, long bitmapType)
 412 {
 413     wxNode *node = sm_handlers.First();
 414     while ( node )
 415     {
 416         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 417         if ( handler->GetExtension() == extension &&
 418                     (bitmapType == -1 || handler->GetType() == bitmapType) )
 419             return handler;
 420         node = node->Next();
 421     }
 422     return NULL;
 423 }
 424
 425 wxBitmapHandler *wxBitmap::FindHandler(long bitmapType)
 426 {
 427     wxNode *node = sm_handlers.First();
 428     while ( node )
 429     {
 430         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 431         if (handler->GetType() == bitmapType)
 432             return handler;
 433         node = node->Next();
 434     }
 435     return NULL;
 436 }
 437
 438 /*
 439  * wxMask
 440  */
 441
 442 wxMask::wxMask()
 443 {
 444     m_maskBitmap = 0;
 445 }
 446
 447 // Construct a mask from a bitmap and a colour indicating
 448 // the transparent area
 449 wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour)
 450 {
 451     m_maskBitmap = 0;
 452     Create(bitmap, colour);
 453 }
 454
 455 // Construct a mask from a bitmap and a palette index indicating
 456 // the transparent area
 457 wxMask::wxMask(const wxBitmap& bitmap, int paletteIndex)
 458 {
 459     m_maskBitmap = 0;
 460     Create(bitmap, paletteIndex);
 461 }
 462
 463 // Construct a mask from a mono bitmap (copies the bitmap).
 464 wxMask::wxMask(const wxBitmap& bitmap)
 465 {
 466     m_maskBitmap = 0;
 467     Create(bitmap);
 468 }
 469
 470 wxMask::~wxMask()
 471 {
 472         if ( m_maskBitmap )
 473         {
 474                 wxMacDestroyGWorld( m_maskBitmap ) ;
 475                 m_maskBitmap = NULL ;
 476         }
 477 }
 478
 479 // Create a mask from a mono bitmap (copies the bitmap).
 480 bool wxMask::Create(const wxBitmap& bitmap)
 481 {
 482 // TODO
 483     return FALSE;
 484 }
 485
 486 // Create a mask from a bitmap and a palette index indicating
 487 // the transparent area
 488 bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex)
 489 {
 490 // TODO
 491     return FALSE;
 492 }
 493
 494 // Create a mask from a bitmap and a colour indicating
 495 // the transparent area
 496 bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour)
 497 {
 498         if ( m_maskBitmap )
 499         {
 500                 wxMacDestroyGWorld( m_maskBitmap ) ;
 501                 m_maskBitmap = NULL ;
 502         }
 503         wxASSERT( ((wxBitmapRefData*) bitmap.GetRefData())->m_bitmapType == kMacBitmapTypeGrafWorld ) ;
 504         // other types would require a temporary bitmap. not yet implemented
 505
 506     if (!bitmap.Ok())
 507     {
 508         return FALSE;
 509     }
 510
 511         m_maskBitmap = wxMacCreateGWorld( bitmap.GetWidth() , bitmap.GetHeight() , 1 ) ;
 512         LockPixels( GetGWorldPixMap( (CGrafPtr) m_maskBitmap ) ) ;
 513         LockPixels( GetGWorldPixMap( (CGrafPtr) ((wxBitmapRefData*) bitmap.GetRefData())->m_hBitmap ) ) ;
 514         RGBColor maskColor = colour.GetPixel() ;
 515
 516     // this is not very efficient, but I can't think
 517     // of a better way of doing it
 518         CGrafPtr        origPort ;
 519         GDHandle        origDevice ;
 520
 521         GetGWorld( &origPort , &origDevice ) ;
 522         for (int w = 0; w < bitmap.GetWidth(); w++)
 523     {
 524         for (int h = 0; h < bitmap.GetHeight(); h++)
 525         {
 526                         RGBColor colors[2] = {
 527                                 { 0xFFFF , 0xFFFF , 0xFFFF } ,
 528                                 { 0, 0 , 0 }
 529                                 } ;
 530
 531                         SetGWorld( ((wxBitmapRefData*) bitmap.GetRefData())->m_hBitmap , NULL ) ;
 532                         RGBColor col ;
 533                         GetCPixel( w , h , &col ) ;
 534                         SetGWorld( m_maskBitmap , NULL ) ;
 535             if (col.red == maskColor.red && col.blue == maskColor.blue && col.green == maskColor.green)
 536             {
 537                                 SetCPixel( w , h , &colors[0] ) ;
 538             }
 539             else
 540             {
 541                                 SetCPixel( w , h , &colors[1] ) ;
 542             }
 543         }
 544     }
 545         UnlockPixels( GetGWorldPixMap( (CGrafPtr) m_maskBitmap ) ) ;
 546         UnlockPixels( GetGWorldPixMap( ((wxBitmapRefData*) bitmap.GetRefData())->m_hBitmap ) ) ;
 547         SetGWorld( origPort , origDevice ) ;
 548
 549     return TRUE;
 550 }
 551
 552 /*
 553  * wxBitmapHandler
 554  */
 555
 556 IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject)
 557
 558 bool wxBitmapHandler::Create(wxBitmap *bitmap, void *data, long type, int width, int height, int depth)
 559 {
 560     return FALSE;
 561 }
 562
 563 bool wxBitmapHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long type,
 564         int desiredWidth, int desiredHeight)
 565 {
 566     return FALSE;
 567 }
 568
 569 bool wxBitmapHandler::SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette)
 570 {
 571     return FALSE;
 572 }
 573
 574 /*
 575  * Standard handlers
 576  */
 577
 578 class WXDLLEXPORT wxPICTResourceHandler: public wxBitmapHandler
 579 {
 580     DECLARE_DYNAMIC_CLASS(wxPICTResourceHandler)
 581 public:
 582     inline wxPICTResourceHandler()
 583     {
 584         m_name = "Macintosh Pict resource";
 585         m_extension = "";
 586         m_type = wxBITMAP_TYPE_PICT_RESOURCE;
 587     };
 588
 589     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 590           int desiredWidth, int desiredHeight);
 591 };
 592 IMPLEMENT_DYNAMIC_CLASS(wxPICTResourceHandler, wxBitmapHandler)
 593
 594 bool  wxPICTResourceHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 595           int desiredWidth, int desiredHeight)
 596 {
 597         Str255 theName ;
 598
 599         strcpy( (char*) theName , name ) ;
 600         c2pstr( (char*) theName ) ;
 601
 602         PicHandle thePict = (PicHandle ) GetNamedResource( 'PICT' , theName ) ;
 603         if ( thePict )
 604         {
 605                 PictInfo theInfo ;
 606
 607                 GetPictInfo( thePict , &theInfo , 0 , 0 , systemMethod , 0 ) ;
 608                 DetachResource( (Handle) thePict ) ;
 609                 M_BITMAPHANDLERDATA->m_bitmapType = kMacBitmapTypePict ;
 610                 M_BITMAPHANDLERDATA->m_hPict = thePict ;
 611                 M_BITMAPHANDLERDATA->m_width =  theInfo.sourceRect.right - theInfo.sourceRect.left ;
 612                 M_BITMAPHANDLERDATA->m_height = theInfo.sourceRect.bottom - theInfo.sourceRect.top ;
 613
 614                 M_BITMAPHANDLERDATA->m_depth = theInfo.depth ;
 615                 M_BITMAPHANDLERDATA->m_ok = true ;
 616                 M_BITMAPHANDLERDATA->m_numColors = theInfo.uniqueColors ;
 617 //              M_BITMAPHANDLERDATA->m_bitmapPalette;
 618 //              M_BITMAPHANDLERDATA->m_quality;
 619                 return TRUE ;
 620         }
 621         return FALSE ;
 622 }
 623
 624 /* TODO: bitmap handlers, a bit like this:
 625 class WXDLLEXPORT wxBMPResourceHandler: public wxBitmapHandler
 626 {
 627     DECLARE_DYNAMIC_CLASS(wxBMPResourceHandler)
 628 public:
 629     inline wxBMPResourceHandler()
 630     {
 631         m_name = "Windows bitmap resource";
 632         m_extension = "";
 633         m_type = wxBITMAP_TYPE_BMP_RESOURCE;
 634     };
 635
 636     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 637           int desiredWidth, int desiredHeight);
 638 };
 639 IMPLEMENT_DYNAMIC_CLASS(wxBMPResourceHandler, wxBitmapHandler)
 640 */
 641
 642 class WXDLLEXPORT wxXPMFileHandler: public wxBitmapHandler
 643 {
 644   DECLARE_DYNAMIC_CLASS(wxXPMFileHandler)
 645 public:
 646   inline wxXPMFileHandler(void)
 647   {
 648   m_name = "XPM bitmap file";
 649   m_extension = "xpm";
 650   m_type = wxBITMAP_TYPE_XPM;
 651   };
 652
 653   virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 654     int desiredWidth = -1, int desiredHeight = -1);
 655   virtual bool SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette = NULL);
 656 };
 657 IMPLEMENT_DYNAMIC_CLASS(wxXPMFileHandler, wxBitmapHandler)
 658
 659 bool wxXPMFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 660     int desiredWidth, int desiredHeight)
 661 {
 662 #if USE_XPM_IN_MSW
 663     XImage *ximage;
 664     XpmAttributes xpmAttr;
 665     HDC     dc;
 666
 667     M_BITMAPHANDLERDATA->m_ok = FALSE;
 668     dc = CreateCompatibleDC(NULL);
 669     if (dc)
 670     {
 671       xpmAttr.valuemask = XpmReturnPixels;
 672       int errorStatus = XpmReadFileToImage(&dc, WXSTRINGCAST name, &ximage, (XImage **) NULL, &xpmAttr);
 673       DeleteDC(dc);
 674       if (errorStatus == XpmSuccess)
 675       {
 676         M_BITMAPHANDLERDATA->m_hBitmap = (WXHBITMAP) ximage->bitmap;
 677
 678         BITMAP  bm;
 679         GetObject((HBITMAP)M_BITMAPHANDLERDATA->m_hBitmap, sizeof(bm), (LPSTR) & bm);
 680
 681         M_BITMAPHANDLERDATA->m_width = (bm.bmWidth);
 682         M_BITMAPHANDLERDATA->m_height = (bm.bmHeight);
 683         M_BITMAPHANDLERDATA->m_depth = (bm.bmPlanes * bm.bmBitsPixel);
 684         M_BITMAPHANDLERDATA->m_numColors = xpmAttr.npixels;
 685         XpmFreeAttributes(&xpmAttr);
 686         XImageFree(ximage);
 687
 688         M_BITMAPHANDLERDATA->m_ok = TRUE;
 689         return TRUE;
 690       }
 691       else
 692       {
 693         M_BITMAPHANDLERDATA->m_ok = FALSE;
 694         return FALSE;
 695       }
 696     }
 697 #endif
 698
 699     return FALSE;
 700 }
 701
 702 bool wxXPMFileHandler::SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette)
 703 {
 704 #if USE_XPM_IN_MSW
 705       HDC     dc = NULL;
 706
 707       Visual *visual = NULL;
 708       XImage  ximage;
 709
 710       dc = CreateCompatibleDC(NULL);
 711       if (dc)
 712       {
 713         if (SelectObject(dc, (HBITMAP) M_BITMAPHANDLERDATA->m_hBitmap))
 714         {
 715
 716     ximage.width = M_BITMAPHANDLERDATA->m_width;
 717      ximage.height = M_BITMAPHANDLERDATA->m_height;
 718     ximage.depth = M_BITMAPHANDLERDATA->m_depth;
 719      ximage.bitmap = (void *)M_BITMAPHANDLERDATA->m_hBitmap;
 720     int errorStatus = XpmWriteFileFromImage(&dc, WXSTRINGCAST name,
 721               &ximage, (XImage *) NULL, (XpmAttributes *) NULL);
 722
 723           if (dc)
 724       DeleteDC(dc);
 725
 726     if (errorStatus == XpmSuccess)
 727       return TRUE;
 728     else
 729       return FALSE;
 730         } else return FALSE;
 731       } else return FALSE;
 732 #else
 733   return FALSE;
 734 #endif
 735 }
 736
 737
 738 class WXDLLEXPORT wxXPMDataHandler: public wxBitmapHandler
 739 {
 740   DECLARE_DYNAMIC_CLASS(wxXPMDataHandler)
 741 public:
 742   inline wxXPMDataHandler(void)
 743   {
 744   m_name = "XPM bitmap data";
 745   m_extension = "xpm";
 746   m_type = wxBITMAP_TYPE_XPM_DATA;
 747   };
 748
 749   virtual bool Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth = 1);
 750 };
 751 IMPLEMENT_DYNAMIC_CLASS(wxXPMDataHandler, wxBitmapHandler)
 752
 753 bool wxXPMDataHandler::Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth)
 754 {
 755                 XImage *                ximage;
 756         int                     ErrorStatus;
 757         XpmAttributes   xpmAttr;
 758
 759     xpmAttr.valuemask = XpmReturnInfos; // get infos back
 760     ErrorStatus = XpmCreateImageFromData( GetMainDevice() , (char **)data,
 761          &ximage, (XImage **) NULL, &xpmAttr);
 762
 763     if (ErrorStatus == XpmSuccess)
 764     {
 765                         M_BITMAPHANDLERDATA->m_ok = FALSE;
 766                         M_BITMAPHANDLERDATA->m_numColors = 0;
 767                         M_BITMAPHANDLERDATA->m_hBitmap = ximage->gworldptr ;
 768
 769                         M_BITMAPHANDLERDATA->m_width = ximage->width;
 770                         M_BITMAPHANDLERDATA->m_height = ximage->height;
 771                         M_BITMAPHANDLERDATA->m_depth = ximage->depth;
 772                         M_BITMAPHANDLERDATA->m_numColors = xpmAttr.npixels;
 773         XpmFreeAttributes(&xpmAttr);
 774             M_BITMAPHANDLERDATA->m_ok = TRUE;
 775                         ximage->gworldptr = NULL ;
 776                         XImageFree(ximage); // releases the malloc, but does not detroy
 777                                   // the bitmap
 778                         M_BITMAPHANDLERDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
 779
 780                         return TRUE;
 781     }
 782     else
 783     {
 784       M_BITMAPHANDLERDATA->m_ok = FALSE;
 785       return FALSE;
 786     }
 787   return FALSE;
 788 }
 789
 790 class WXDLLEXPORT wxBMPResourceHandler: public wxBitmapHandler
 791 {
 792     DECLARE_DYNAMIC_CLASS(wxBMPResourceHandler)
 793 public:
 794     inline wxBMPResourceHandler()
 795     {
 796         m_name = "Windows bitmap resource";
 797         m_extension = "";
 798         m_type = wxBITMAP_TYPE_BMP_RESOURCE;
 799     };
 800
 801     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 802           int desiredWidth, int desiredHeight);
 803 };
 804
 805 IMPLEMENT_DYNAMIC_CLASS(wxBMPResourceHandler, wxBitmapHandler)
 806
 807 bool wxBMPResourceHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 808     int desiredWidth, int desiredHeight)
 809 {
 810     // TODO: load colourmap.
 811   // it's probably not found
 812   wxLogError("Can't load bitmap '%s' from resources! Check .rc file.", name.c_str());
 813
 814   return FALSE;
 815 }
 816
 817 class WXDLLEXPORT wxBMPFileHandler: public wxBitmapHandler
 818 {
 819   DECLARE_DYNAMIC_CLASS(wxBMPFileHandler)
 820 public:
 821   inline wxBMPFileHandler(void)
 822   {
 823   m_name = "Windows bitmap file";
 824   m_extension = "bmp";
 825   m_type = wxBITMAP_TYPE_BMP;
 826   };
 827
 828   virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 829       int desiredWidth, int desiredHeight);
 830   virtual bool SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette = NULL);
 831 };
 832
 833 IMPLEMENT_DYNAMIC_CLASS(wxBMPFileHandler, wxBitmapHandler)
 834
 835 bool wxBMPFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 836     int desiredWidth, int desiredHeight)
 837 {
 838 #if USE_IMAGE_LOADING_IN_MSW
 839     wxPalette *palette = NULL;
 840     bool success = FALSE;
 841     success = (wxLoadIntoBitmap(WXSTRINGCAST name, bitmap, &palette) != 0);
 842     if (!success && palette)
 843     {
 844       delete palette;
 845       palette = NULL;
 846     }
 847     if (palette)
 848       M_BITMAPHANDLERDATA->m_bitmapPalette = *palette;
 849     return success;
 850 #else
 851   return FALSE;
 852 #endif
 853 }
 854
 855 bool wxBMPFileHandler::SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *pal)
 856 {
 857 #if USE_IMAGE_LOADING_IN_MSW
 858     wxPalette *actualPalette = (wxPalette *)pal;
 859     if (!actualPalette && (!M_BITMAPHANDLERDATA->m_bitmapPalette.IsNull()))
 860       actualPalette = & (M_BITMAPHANDLERDATA->m_bitmapPalette);
 861     return (wxSaveBitmap(WXSTRINGCAST name, bitmap, actualPalette) != 0);
 862 #else
 863   return FALSE;
 864 #endif
 865 }
 866
 867
 868 void wxBitmap::CleanUpHandlers()
 869 {
 870     wxNode *node = sm_handlers.First();
 871     while ( node )
 872     {
 873         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 874         wxNode *next = node->Next();
 875         delete handler;
 876         delete node;
 877         node = next;
 878     }
 879 }
 880
 881 void wxBitmap::InitStandardHandlers()
 882 {
 883         AddHandler( new wxPICTResourceHandler ) ;
 884         AddHandler( new wxICONResourceHandler ) ;
 885         AddHandler(new wxXPMFileHandler);
 886         AddHandler(new wxXPMDataHandler);
 887         AddHandler(new wxBMPResourceHandler);
 888         AddHandler(new wxBMPFileHandler);
 889 }