src/msw/bitmap.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bitmap.cpp
   3 // Purpose:     wxBitmap
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "bitmap.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include <stdio.h>
  25 #include "wx/setup.h"
  26 #include "wx/list.h"
  27 #include "wx/utils.h"
  28 #include "wx/app.h"
  29 #include "wx/palette.h"
  30 #include "wx/bitmap.h"
  31 #include "wx/icon.h"
  32 #endif
  33
  34 #include "wx/msw/private.h"
  35 #include "wx/log.h"
  36
  37 #include "assert.h"
  38
  39 #if USE_XPM_IN_MSW
  40 #define FOR_MSW 1
  41 #include "../../contrib/wxxpm/libxpm.34b/lib/xpm34.h"
  42 #endif
  43
  44 #include "wx/msw/dib.h"
  45
  46 #if !USE_SHARED_LIBRARIES
  47 IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject)
  48 IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
  49 #endif
  50
  51 wxBitmapRefData::wxBitmapRefData(void)
  52 {
  53   m_ok = FALSE;
  54   m_width = 0;
  55   m_height = 0;
  56   m_depth = 0;
  57   m_quality = 0;
  58   m_hBitmap = 0 ;
  59   m_selectedInto = NULL;
  60   m_numColors = 0;
  61   m_bitmapMask = NULL;
  62 }
  63
  64 wxBitmapRefData::~wxBitmapRefData(void)
  65 {
  66   if (m_selectedInto)
  67   {
  68     char buf[200];
  69     sprintf(buf, "Bitmap was deleted without selecting out of wxMemoryDC %X.", (unsigned int) m_selectedInto);
  70     wxFatalError(buf);
  71   }
  72   if (m_hBitmap)
  73   {
  74     DeleteObject((HBITMAP) m_hBitmap);
  75   }
  76   m_hBitmap = 0 ;
  77
  78   if (m_bitmapMask)
  79     delete m_bitmapMask;
  80   m_bitmapMask = NULL;
  81 }
  82
  83 wxList wxBitmap::sm_handlers;
  84
  85 wxBitmap::wxBitmap(void)
  86 {
  87   m_refData = NULL; // new wxBitmapRefData;
  88
  89   if ( wxTheBitmapList )
  90     wxTheBitmapList->AddBitmap(this);
  91 }
  92
  93 wxBitmap::~wxBitmap(void)
  94 {
  95     if (wxTheBitmapList)
  96         wxTheBitmapList->DeleteObject(this);
  97 }
  98
  99 bool wxBitmap::FreeResource(bool force)
 100 {
 101   if ( !M_BITMAPDATA )
 102   return FALSE;
 103
 104   if (M_BITMAPDATA->m_selectedInto)
 105   {
 106     char buf[200];
 107     sprintf(buf, "Bitmap %X was deleted without selecting out of wxMemoryDC %X.", (unsigned int) this, (unsigned int) M_BITMAPDATA->m_selectedInto);
 108     wxFatalError(buf);
 109   }
 110   if (M_BITMAPDATA->m_hBitmap)
 111   {
 112     DeleteObject((HBITMAP) M_BITMAPDATA->m_hBitmap);
 113   }
 114   M_BITMAPDATA->m_hBitmap = 0 ;
 115
 116 /*
 117   if (M_BITMAPDATA->m_bitmapPalette)
 118     delete M_BITMAPDATA->m_bitmapPalette;
 119
 120   M_BITMAPDATA->m_bitmapPalette = NULL ;
 121 */
 122
 123   return TRUE;
 124 }
 125
 126
 127 wxBitmap::wxBitmap(const char bits[], int the_width, int the_height, int no_bits)
 128 {
 129   m_refData = new wxBitmapRefData;
 130
 131   M_BITMAPDATA->m_width = the_width ;
 132   M_BITMAPDATA->m_height = the_height ;
 133   M_BITMAPDATA->m_depth = no_bits ;
 134   M_BITMAPDATA->m_numColors = 0;
 135
 136   M_BITMAPDATA->m_hBitmap = (WXHBITMAP) CreateBitmap(the_width, the_height, no_bits, 1, bits);
 137
 138   if (M_BITMAPDATA->m_hBitmap)
 139     M_BITMAPDATA->m_ok = TRUE;
 140   else
 141     M_BITMAPDATA->m_ok = FALSE;
 142
 143   M_BITMAPDATA->m_selectedInto = NULL;
 144
 145   if ( wxTheBitmapList )
 146     wxTheBitmapList->AddBitmap(this);
 147 }
 148
 149 wxBitmap::wxBitmap(int w, int h, int d)
 150 {
 151   (void)Create(w, h, d);
 152
 153   if ( wxTheBitmapList )
 154     wxTheBitmapList->AddBitmap(this);
 155 }
 156
 157 wxBitmap::wxBitmap(void *data, long type, int width, int height, int depth)
 158 {
 159   (void) Create(data, type, width, height, depth);
 160
 161   if ( wxTheBitmapList )
 162     wxTheBitmapList->AddBitmap(this);
 163 }
 164
 165 wxBitmap::wxBitmap(const wxString& filename, long type)
 166 {
 167   LoadFile(filename, (int)type);
 168
 169   if ( wxTheBitmapList )
 170     wxTheBitmapList->AddBitmap(this);
 171 }
 172
 173 #if USE_XPM_IN_MSW
 174 // Create from data
 175 wxBitmap::wxBitmap(const char **data, wxItem *WXUNUSED(anItem))
 176 {
 177   (void) Create((void *)data, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0);
 178 }
 179 #endif
 180
 181 bool wxBitmap::Create(int w, int h, int d)
 182 {
 183   UnRef();
 184
 185   m_refData = new wxBitmapRefData;
 186
 187   M_BITMAPDATA->m_width = w;
 188   M_BITMAPDATA->m_height = h;
 189   M_BITMAPDATA->m_depth = d;
 190
 191   if (d > 0)
 192   {
 193     M_BITMAPDATA->m_hBitmap = (WXHBITMAP) CreateBitmap(w, h, d, 1, NULL);
 194   }
 195   else
 196   {
 197     HDC dc = GetDC(NULL);
 198     M_BITMAPDATA->m_hBitmap = (WXHBITMAP) CreateCompatibleBitmap(dc, w, h);
 199     ReleaseDC(NULL, dc);
 200     M_BITMAPDATA->m_depth = wxDisplayDepth();
 201   }
 202   if (M_BITMAPDATA->m_hBitmap)
 203     M_BITMAPDATA->m_ok = TRUE;
 204   else
 205     M_BITMAPDATA->m_ok = FALSE;
 206   return M_BITMAPDATA->m_ok;
 207 }
 208
 209 bool wxBitmap::LoadFile(const wxString& filename, long type)
 210 {
 211   UnRef();
 212
 213   m_refData = new wxBitmapRefData;
 214
 215   wxBitmapHandler *handler = FindHandler(type);
 216
 217   if ( handler == NULL ) {
 218     wxLogWarning("no bitmap handler for type %d defined.", type);
 219
 220     return FALSE;
 221   }
 222
 223   return handler->LoadFile(this, filename, type, -1, -1);
 224 }
 225
 226 bool wxBitmap::Create(void *data, long type, int width, int height, int depth)
 227 {
 228   UnRef();
 229
 230   m_refData = new wxBitmapRefData;
 231
 232   wxBitmapHandler *handler = FindHandler(type);
 233
 234   if ( handler == NULL ) {
 235     wxLogWarning("no bitmap handler for type %d defined.", type);
 236
 237     return FALSE;
 238   }
 239
 240   return handler->Create(this, data, type, width, height, depth);
 241 }
 242
 243 bool wxBitmap::SaveFile(const wxString& filename, int type, const wxPalette *palette)
 244 {
 245   wxBitmapHandler *handler = FindHandler(type);
 246
 247   if ( handler == NULL ) {
 248     wxLogWarning("no bitmap handler for type %d defined.", type);
 249
 250     return FALSE;
 251   }
 252
 253   return handler->SaveFile(this, filename, type, palette);
 254 }
 255
 256 void wxBitmap::SetWidth(int w)
 257 {
 258   if (!M_BITMAPDATA)
 259     m_refData = new wxBitmapRefData;
 260
 261   M_BITMAPDATA->m_width = w;
 262 }
 263
 264 void wxBitmap::SetHeight(int h)
 265 {
 266   if (!M_BITMAPDATA)
 267   m_refData = new wxBitmapRefData;
 268
 269   M_BITMAPDATA->m_height = h;
 270 }
 271
 272 void wxBitmap::SetDepth(int d)
 273 {
 274   if (!M_BITMAPDATA)
 275   m_refData = new wxBitmapRefData;
 276
 277   M_BITMAPDATA->m_depth = d;
 278 }
 279
 280 void wxBitmap::SetQuality(int q)
 281 {
 282   if (!M_BITMAPDATA)
 283   m_refData = new wxBitmapRefData;
 284
 285   M_BITMAPDATA->m_quality = q;
 286 }
 287
 288 void wxBitmap::SetOk(bool isOk)
 289 {
 290   if (!M_BITMAPDATA)
 291   m_refData = new wxBitmapRefData;
 292
 293   M_BITMAPDATA->m_ok = isOk;
 294 }
 295
 296 void wxBitmap::SetPalette(const wxPalette& palette)
 297 {
 298   if (!M_BITMAPDATA)
 299   m_refData = new wxBitmapRefData;
 300
 301   M_BITMAPDATA->m_bitmapPalette = palette ;
 302 }
 303
 304 void wxBitmap::SetMask(wxMask *mask)
 305 {
 306   if (!M_BITMAPDATA)
 307   m_refData = new wxBitmapRefData;
 308
 309   M_BITMAPDATA->m_bitmapMask = mask ;
 310 }
 311
 312 void wxBitmap::SetHBITMAP(WXHBITMAP bmp)
 313 {
 314   if (!M_BITMAPDATA)
 315   m_refData = new wxBitmapRefData;
 316
 317   M_BITMAPDATA->m_hBitmap = bmp;
 318 }
 319
 320 void wxBitmap::AddHandler(wxBitmapHandler *handler)
 321 {
 322   sm_handlers.Append(handler);
 323 }
 324
 325 void wxBitmap::InsertHandler(wxBitmapHandler *handler)
 326 {
 327   sm_handlers.Insert(handler);
 328 }
 329
 330 bool wxBitmap::RemoveHandler(const wxString& name)
 331 {
 332   wxBitmapHandler *handler = FindHandler(name);
 333   if ( handler )
 334   {
 335     sm_handlers.DeleteObject(handler);
 336     return TRUE;
 337   }
 338   else
 339     return FALSE;
 340 }
 341
 342 wxBitmapHandler *wxBitmap::FindHandler(const wxString& name)
 343 {
 344   wxNode *node = sm_handlers.First();
 345   while ( node )
 346   {
 347     wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 348     if ( handler->GetName() == name )
 349       return handler;
 350     node = node->Next();
 351   }
 352   return NULL;
 353 }
 354
 355 wxBitmapHandler *wxBitmap::FindHandler(const wxString& extension, long bitmapType)
 356 {
 357   wxNode *node = sm_handlers.First();
 358   while ( node )
 359   {
 360     wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 361     if ( handler->GetExtension() == extension &&
 362           (bitmapType == -1 || handler->GetType() == bitmapType) )
 363       return handler;
 364     node = node->Next();
 365   }
 366   return NULL;
 367 }
 368
 369 wxBitmapHandler *wxBitmap::FindHandler(long bitmapType)
 370 {
 371   wxNode *node = sm_handlers.First();
 372   while ( node )
 373   {
 374     wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 375     if (handler->GetType() == bitmapType)
 376       return handler;
 377     node = node->Next();
 378   }
 379   return NULL;
 380 }
 381
 382 /*
 383  * wxMask
 384  */
 385
 386 wxMask::wxMask(void)
 387 {
 388     m_maskBitmap = 0;
 389 }
 390
 391 // Construct a mask from a bitmap and a colour indicating
 392 // the transparent area
 393 wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour)
 394 {
 395     m_maskBitmap = 0;
 396   Create(bitmap, colour);
 397 }
 398
 399 // Construct a mask from a bitmap and a palette index indicating
 400 // the transparent area
 401 wxMask::wxMask(const wxBitmap& bitmap, int paletteIndex)
 402 {
 403     m_maskBitmap = 0;
 404   Create(bitmap, paletteIndex);
 405 }
 406
 407 // Construct a mask from a mono bitmap (copies the bitmap).
 408 wxMask::wxMask(const wxBitmap& bitmap)
 409 {
 410     m_maskBitmap = 0;
 411   Create(bitmap);
 412 }
 413
 414 wxMask::~wxMask(void)
 415 {
 416     if ( m_maskBitmap )
 417         ::DeleteObject((HBITMAP) m_maskBitmap);
 418 }
 419
 420 // Create a mask from a mono bitmap (copies the bitmap).
 421 bool wxMask::Create(const wxBitmap& bitmap)
 422 {
 423     if ( m_maskBitmap )
 424   {
 425     ::DeleteObject((HBITMAP) m_maskBitmap);
 426     m_maskBitmap = 0;
 427   }
 428   if (!bitmap.Ok() || bitmap.GetDepth() != 1)
 429   {
 430     return FALSE;
 431   }
 432   m_maskBitmap = (WXHBITMAP) CreateBitmap(
 433           bitmap.GetWidth(),
 434           bitmap.GetHeight(),
 435           1, 1, 0
 436           );
 437   HDC srcDC = CreateCompatibleDC(0);
 438   SelectObject(srcDC, (HBITMAP) bitmap.GetHBITMAP());
 439   HDC destDC = CreateCompatibleDC(0);
 440   SelectObject(destDC, (HBITMAP) m_maskBitmap);
 441   BitBlt(destDC, 0, 0, bitmap.GetWidth(), bitmap.GetHeight(), srcDC, 0, 0, SRCCOPY);
 442   SelectObject(srcDC, 0);
 443   DeleteDC(srcDC);
 444   SelectObject(destDC, 0);
 445   DeleteDC(destDC);
 446   return TRUE;
 447 }
 448
 449 // Create a mask from a bitmap and a palette index indicating
 450 // the transparent area
 451 bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex)
 452 {
 453     if ( m_maskBitmap )
 454   {
 455     ::DeleteObject((HBITMAP) m_maskBitmap);
 456     m_maskBitmap = 0;
 457   }
 458   if (bitmap.Ok() && bitmap.GetPalette()->Ok())
 459   {
 460     unsigned char red, green, blue;
 461     if (bitmap.GetPalette()->GetRGB(paletteIndex, &red, &green, &blue))
 462     {
 463       wxColour transparentColour(red, green, blue);
 464       return Create(bitmap, transparentColour);
 465     }
 466   }
 467   return FALSE;
 468 }
 469
 470 // Create a mask from a bitmap and a colour indicating
 471 // the transparent area
 472 bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour)
 473 {
 474     if ( m_maskBitmap )
 475   {
 476     ::DeleteObject((HBITMAP) m_maskBitmap);
 477     m_maskBitmap = 0;
 478   }
 479   if (!bitmap.Ok())
 480   {
 481     return FALSE;
 482   }
 483
 484   // scan the bitmap for the transparent colour and set
 485   // the corresponding pixels in the mask to BLACK and
 486   // the rest to WHITE
 487   COLORREF maskColour = RGB(colour.Red(), colour.Green(), colour.Blue());
 488   m_maskBitmap = (WXHBITMAP) ::CreateBitmap(
 489           bitmap.GetWidth(),
 490           bitmap.GetHeight(),
 491           1, 1, 0
 492           );
 493   HDC srcDC = ::CreateCompatibleDC(0);
 494   ::SelectObject(srcDC, (HBITMAP) bitmap.GetHBITMAP());
 495   HDC destDC = ::CreateCompatibleDC(0);
 496   ::SelectObject(destDC, (HBITMAP) m_maskBitmap);
 497
 498   // this is not very efficient, but I can't think
 499   // of a better way of doing it
 500   for (int w = 0; w < bitmap.GetWidth(); w++)
 501   {
 502     for (int h = 0; h < bitmap.GetHeight(); h++)
 503     {
 504       COLORREF col = GetPixel(srcDC, w, h);
 505       if (col == maskColour)
 506       {
 507         ::SetPixel(destDC, w, h, RGB(0, 0, 0));
 508       }
 509       else
 510       {
 511         ::SetPixel(destDC, w, h, RGB(255, 255, 255));
 512       }
 513     }
 514   }
 515   ::SelectObject(srcDC, 0);
 516   ::DeleteDC(srcDC);
 517   ::SelectObject(destDC, 0);
 518   ::DeleteDC(destDC);
 519   return TRUE;
 520 }
 521
 522 /*
 523  * wxBitmapHandler
 524  */
 525
 526 IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject)
 527
 528 bool wxBitmapHandler::Create(wxBitmap *bitmap, void *data, long type, int width, int height, int depth)
 529 {
 530   return FALSE;
 531 }
 532
 533 bool wxBitmapHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long type,
 534     int desiredWidth, int desiredHeight)
 535 {
 536   return FALSE;
 537 }
 538
 539 bool wxBitmapHandler::SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette)
 540 {
 541   return FALSE;
 542 }
 543
 544 /*
 545  * Standard handlers
 546  */
 547
 548 class WXDLLEXPORT wxBMPResourceHandler: public wxBitmapHandler
 549 {
 550   DECLARE_DYNAMIC_CLASS(wxBMPResourceHandler)
 551 public:
 552   inline wxBMPResourceHandler(void)
 553   {
 554   m_name = "Windows bitmap resource";
 555   m_extension = "";
 556   m_type = wxBITMAP_TYPE_BMP_RESOURCE;
 557   };
 558
 559   virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 560       int desiredWidth, int desiredHeight);
 561 };
 562 IMPLEMENT_DYNAMIC_CLASS(wxBMPResourceHandler, wxBitmapHandler)
 563
 564 bool wxBMPResourceHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 565     int desiredWidth, int desiredHeight)
 566 {
 567     // TODO: load colourmap.
 568     M_BITMAPHANDLERDATA->m_hBitmap = (WXHBITMAP) ::LoadBitmap(wxGetInstance(), name);
 569     if (M_BITMAPHANDLERDATA->m_hBitmap)
 570     {
 571       M_BITMAPHANDLERDATA->m_ok = TRUE;
 572       BITMAP bm;
 573       GetObject((HBITMAP) M_BITMAPHANDLERDATA->m_hBitmap, sizeof(BITMAP), (LPSTR) &bm);
 574       M_BITMAPHANDLERDATA->m_width = bm.bmWidth;
 575       M_BITMAPHANDLERDATA->m_height = bm.bmHeight;
 576       M_BITMAPHANDLERDATA->m_depth = bm.bmPlanes;
 577       return TRUE;
 578     }
 579
 580   // it's probably not found
 581   wxLogError("Can't load bitmap '%s' from resources! Check .rc file.", name.c_str());
 582
 583   return FALSE;
 584 }
 585
 586 class WXDLLEXPORT wxBMPFileHandler: public wxBitmapHandler
 587 {
 588   DECLARE_DYNAMIC_CLASS(wxBMPFileHandler)
 589 public:
 590   inline wxBMPFileHandler(void)
 591   {
 592   m_name = "Windows bitmap file";
 593   m_extension = "bmp";
 594   m_type = wxBITMAP_TYPE_BMP;
 595   };
 596
 597   virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 598       int desiredWidth, int desiredHeight);
 599   virtual bool SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette = NULL);
 600 };
 601 IMPLEMENT_DYNAMIC_CLASS(wxBMPFileHandler, wxBitmapHandler)
 602
 603 bool wxBMPFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 604     int desiredWidth, int desiredHeight)
 605 {
 606 #if USE_IMAGE_LOADING_IN_MSW
 607     wxPalette *palette = NULL;
 608     bool success = FALSE;
 609 /*
 610     if (type & wxBITMAP_DISCARD_COLOURMAP)
 611       success = wxLoadIntoBitmap(WXSTRINGCAST name, bitmap);
 612     else
 613 */
 614     success = (wxLoadIntoBitmap(WXSTRINGCAST name, bitmap, &palette) != 0);
 615     if (!success && palette)
 616     {
 617       delete palette;
 618       palette = NULL;
 619     }
 620     if (palette)
 621       M_BITMAPHANDLERDATA->m_bitmapPalette = *palette;
 622     return success;
 623 #else
 624   return FALSE;
 625 #endif
 626 }
 627
 628 bool wxBMPFileHandler::SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *pal)
 629 {
 630 #if USE_IMAGE_LOADING_IN_MSW
 631     wxPalette *actualPalette = (wxPalette *)pal;
 632     if (!actualPalette && (!M_BITMAPHANDLERDATA->m_bitmapPalette.IsNull()))
 633       actualPalette = & (M_BITMAPHANDLERDATA->m_bitmapPalette);
 634     return (wxSaveBitmap(WXSTRINGCAST name, bitmap, actualPalette) != 0);
 635 #else
 636   return FALSE;
 637 #endif
 638 }
 639
 640 class WXDLLEXPORT wxXPMFileHandler: public wxBitmapHandler
 641 {
 642   DECLARE_DYNAMIC_CLASS(wxXPMFileHandler)
 643 public:
 644   inline wxXPMFileHandler(void)
 645   {
 646   m_name = "XPM bitmap file";
 647   m_extension = "xpm";
 648   m_type = wxBITMAP_TYPE_XPM;
 649   };
 650
 651   virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 652     int desiredWidth = -1, int desiredHeight = -1);
 653   virtual bool SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette = NULL);
 654 };
 655 IMPLEMENT_DYNAMIC_CLASS(wxXPMFileHandler, wxBitmapHandler)
 656
 657 bool wxXPMFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 658     int desiredWidth, int desiredHeight)
 659 {
 660 #if USE_XPM_IN_MSW
 661     XImage *ximage;
 662     XpmAttributes xpmAttr;
 663     HDC     dc;
 664
 665     M_BITMAPHANDLERDATA->m_ok = FALSE;
 666     dc = CreateCompatibleDC(NULL);
 667     if (dc)
 668     {
 669       xpmAttr.valuemask = XpmReturnPixels;
 670       int errorStatus = XpmReadFileToImage(&dc, WXSTRINGCAST name, &ximage, (XImage **) NULL, &xpmAttr);
 671       DeleteDC(dc);
 672       if (errorStatus == XpmSuccess)
 673       {
 674         M_BITMAPHANDLERDATA->m_hBitmap = (WXHBITMAP) ximage->bitmap;
 675
 676         BITMAP  bm;
 677         GetObject((HBITMAP)M_BITMAPHANDLERDATA->m_hBitmap, sizeof(bm), (LPSTR) & bm);
 678
 679         M_BITMAPHANDLERDATA->m_width = (bm.bmWidth);
 680         M_BITMAPHANDLERDATA->m_height = (bm.bmHeight);
 681         M_BITMAPHANDLERDATA->m_depth = (bm.bmPlanes * bm.bmBitsPixel);
 682         M_BITMAPHANDLERDATA->m_numColors = xpmAttr.npixels;
 683         XpmFreeAttributes(&xpmAttr);
 684         XImageFree(ximage);
 685
 686         M_BITMAPHANDLERDATA->m_ok = TRUE;
 687         return TRUE;
 688       }
 689       else
 690       {
 691         M_BITMAPHANDLERDATA->m_ok = FALSE;
 692         return FALSE;
 693       }
 694     }
 695 #endif
 696
 697     return FALSE;
 698 }
 699
 700 bool wxXPMFileHandler::SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette)
 701 {
 702 #if USE_XPM_IN_MSW
 703       HDC     dc = NULL;
 704
 705       Visual *visual = NULL;
 706       XImage  ximage;
 707
 708       dc = CreateCompatibleDC(NULL);
 709       if (dc)
 710       {
 711         if (SelectObject(dc, (HBITMAP) M_BITMAPHANDLERDATA->m_hBitmap))
 712         { /* for following SetPixel */
 713           /* fill the XImage struct 'by hand' */
 714     ximage.width = M_BITMAPHANDLERDATA->m_width;
 715      ximage.height = M_BITMAPHANDLERDATA->m_height;
 716     ximage.depth = M_BITMAPHANDLERDATA->m_depth;
 717      ximage.bitmap = (void *)M_BITMAPHANDLERDATA->m_hBitmap;
 718     int errorStatus = XpmWriteFileFromImage(&dc, WXSTRINGCAST name,
 719               &ximage, (XImage *) NULL, (XpmAttributes *) NULL);
 720
 721           if (dc)
 722       DeleteDC(dc);
 723
 724     if (errorStatus == XpmSuccess)
 725       return TRUE;    /* no error */
 726     else
 727       return FALSE;
 728         } else return FALSE;
 729       } else return FALSE;
 730 #else
 731   return FALSE;
 732 #endif
 733 }
 734
 735 class WXDLLEXPORT wxXPMDataHandler: public wxBitmapHandler
 736 {
 737   DECLARE_DYNAMIC_CLASS(wxXPMDataHandler)
 738 public:
 739   inline wxXPMDataHandler(void)
 740   {
 741   m_name = "XPM bitmap data";
 742   m_extension = "xpm";
 743   m_type = wxBITMAP_TYPE_XPM_DATA;
 744   };
 745
 746   virtual bool Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth = 1);
 747 };
 748 IMPLEMENT_DYNAMIC_CLASS(wxXPMDataHandler, wxBitmapHandler)
 749
 750 bool wxXPMDataHandler::Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth)
 751 {
 752 #if USE_XPM_IN_MSW
 753   XImage *ximage;
 754   int     ErrorStatus;
 755   XpmAttributes xpmAttr;
 756   HDC     dc;
 757
 758   M_BITMAPHANDLERDATA->m_ok = FALSE;
 759   M_BITMAPHANDLERDATA->m_numColors = 0;
 760
 761   dc = CreateCompatibleDC(NULL);  /* memory DC */
 762
 763   if (dc)
 764   {
 765     xpmAttr.valuemask = XpmReturnInfos; /* get infos back */
 766     ErrorStatus = XpmCreateImageFromData(&dc, (char **)data,
 767          &ximage, (XImage **) NULL, &xpmAttr);
 768
 769     if (ErrorStatus == XpmSuccess)
 770     {
 771       /* ximage is malloced and contains bitmap and attributes */
 772       M_BITMAPHANDLERDATA->m_hBitmap = (WXHBITMAP) ximage->bitmap;
 773
 774       BITMAP  bm;
 775       GetObject((HBITMAP) M_BITMAPHANDLERDATA->m_hBitmap, sizeof(bm), (LPSTR) & bm);
 776
 777       M_BITMAPHANDLERDATA->m_width = (bm.bmWidth);
 778       M_BITMAPHANDLERDATA->m_height = (bm.bmHeight);
 779       M_BITMAPHANDLERDATA->m_depth = (bm.bmPlanes * bm.bmBitsPixel);
 780       M_BITMAPHANDLERDATA->m_numColors = xpmAttr.npixels;
 781       XpmFreeAttributes(&xpmAttr);
 782
 783       XImageFree(ximage); // releases the malloc, but does not detroy
 784                           // the bitmap
 785       M_BITMAPHANDLERDATA->m_ok = TRUE;
 786       DeleteDC(dc);
 787
 788       return TRUE;
 789     }
 790     else
 791     {
 792       M_BITMAPHANDLERDATA->m_ok = FALSE;
 793 //    XpmDebugError(ErrorStatus, NULL);
 794       DeleteDC(dc);
 795       return FALSE;
 796     }
 797   }
 798 #endif
 799
 800   return FALSE;
 801 }
 802
 803 void wxBitmap::CleanUpHandlers(void)
 804 {
 805   wxNode *node = sm_handlers.First();
 806   while ( node )
 807   {
 808     wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 809     wxNode *next = node->Next();
 810     delete handler;
 811     delete node;
 812     node = next;
 813   }
 814 }
 815
 816 void wxBitmap::InitStandardHandlers(void)
 817 {
 818   AddHandler(new wxBMPResourceHandler);
 819   AddHandler(new wxBMPFileHandler);
 820   AddHandler(new wxXPMFileHandler);
 821   AddHandler(new wxXPMDataHandler);
 822   AddHandler(new wxICOResourceHandler);
 823   AddHandler(new wxICOFileHandler);
 824 }