src/motif/bitmap.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bitmap.cpp
   3 // Purpose:     wxBitmap
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "bitmap.h"
  14 #endif
  15
  16 #ifdef __VMS
  17 #define XtParent XTPARENT
  18 #endif
  19
  20 #include "wx/setup.h"
  21 #include "wx/utils.h"
  22 #include "wx/palette.h"
  23 #include "wx/bitmap.h"
  24 #include "wx/icon.h"
  25 #include "wx/log.h"
  26 #include "wx/control.h"
  27 #include "wx/dcmemory.h"
  28 #include "wx/image.h"
  29 #include "wx/app.h"
  30
  31 #ifdef __VMS__
  32 #pragma message disable nosimpint
  33 #endif
  34 #include <Xm/Xm.h>
  35 #ifdef __VMS__
  36 #pragma message enable nosimpint
  37 #endif
  38
  39 #include "wx/motif/private.h"
  40
  41 #if wxHAVE_LIB_XPM
  42     #include <X11/xpm.h>
  43 #endif
  44 #include <math.h>
  45
  46
  47 IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject)
  48 IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
  49
  50 wxBitmapRefData::wxBitmapRefData()
  51 {
  52     m_ok = FALSE;
  53     m_width = 0;
  54     m_height = 0;
  55     m_depth = 0;
  56     m_quality = 0;
  57     m_numColors = 0;
  58     m_bitmapMask = NULL;
  59
  60     m_pixmap = (WXPixmap) 0;
  61     m_display = (WXDisplay*) 0;
  62
  63     m_freePixmap = TRUE; //TODO: necessary?
  64     m_freeColors = (unsigned long*) 0;
  65     m_freeColorsCount = 0;
  66
  67     // These 5 variables are for wxControl
  68     m_insensPixmap = (WXPixmap) 0;
  69     m_labelPixmap = (WXPixmap) 0;
  70     m_armPixmap = (WXPixmap) 0;
  71     m_image = (WXImage*) 0;
  72     m_insensImage = (WXImage*) 0;
  73 }
  74
  75 wxBitmapRefData::~wxBitmapRefData()
  76 {
  77     if (m_labelPixmap)
  78         XmDestroyPixmap (DefaultScreenOfDisplay ((Display*) m_display), (Pixmap) m_labelPixmap);
  79
  80     if (m_armPixmap)
  81         XmDestroyPixmap (DefaultScreenOfDisplay ((Display*) m_display), (Pixmap) m_armPixmap);
  82
  83     if (m_insensPixmap)
  84         XmDestroyPixmap (DefaultScreenOfDisplay ((Display*) m_display), (Pixmap) m_insensPixmap);
  85
  86     if (m_image)
  87     {
  88         XmUninstallImage ((XImage*) m_image);
  89         XtFree ((char *) (XImage*) m_image);
  90     }
  91
  92     if (m_insensImage)
  93     {
  94         XmUninstallImage ((XImage*) m_insensImage);
  95         delete[] ((XImage*) m_insensImage)->data;
  96         XtFree ((char *) (XImage*) m_insensImage);
  97     }
  98     if (m_pixmap && m_freePixmap)
  99         XFreePixmap ((Display*) m_display, (Pixmap) m_pixmap);
 100
 101     if (m_freeColors)
 102     {
 103         int screen = DefaultScreen((Display*) m_display);
 104         Colormap cmp = DefaultColormap((Display*) m_display,screen);
 105         long llp;
 106         for(llp = 0;llp < m_freeColorsCount;llp++)
 107             XFreeColors((Display*) m_display, cmp, &m_freeColors[llp], 1, 0L);
 108         delete m_freeColors;
 109     };
 110
 111     if (m_bitmapMask)
 112         delete m_bitmapMask;
 113     m_bitmapMask = NULL;
 114 }
 115
 116 wxList wxBitmap::sm_handlers;
 117
 118 #define M_BMPDATA ((wxBitmapRefData *)m_refData)
 119
 120 wxBitmap::wxBitmap()
 121 {
 122     m_refData = NULL;
 123 }
 124
 125 wxBitmap::~wxBitmap()
 126 {
 127 }
 128
 129 wxBitmap::wxBitmap(const char bits[], int width, int height, int depth)
 130 {
 131     m_refData = new wxBitmapRefData;
 132
 133     (void) Create((void*) bits, wxBITMAP_TYPE_XBM_DATA, width, height, depth);
 134 }
 135
 136 wxBitmap::wxBitmap(int w, int h, int d)
 137 {
 138     (void)Create(w, h, d);
 139 }
 140
 141 wxBitmap::wxBitmap(void *data, long type, int width, int height, int depth)
 142 {
 143     (void) Create(data, type, width, height, depth);
 144 }
 145
 146 wxBitmap::wxBitmap(const wxString& filename, int type)
 147 {
 148     LoadFile(filename, (int)type);
 149 }
 150
 151 // Create from XPM data
 152 static wxControl* sg_Control = NULL;
 153 wxBitmap::wxBitmap(char **data, wxControl* control)
 154 {
 155     // Pass the control to the Create function using a global
 156     sg_Control = control;
 157
 158     (void) Create((void *)data, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0);
 159
 160     sg_Control = (wxControl*) NULL;
 161 }
 162
 163 bool wxBitmap::CreateFromXpm(const char **bits)
 164 {
 165     wxCHECK_MSG( bits, FALSE, _T("NULL pointer in wxBitmap::CreateFromXpm") );
 166
 167     return Create(bits, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0);
 168 }
 169
 170 bool wxBitmap::CopyFromIcon(const wxIcon& icon)
 171 {
 172     *this = icon;
 173     return TRUE;
 174 }
 175
 176 bool wxBitmap::Create(int w, int h, int d)
 177 {
 178     UnRef();
 179
 180     m_refData = new wxBitmapRefData;
 181
 182     if (d < 1)
 183         d = wxDisplayDepth();
 184
 185     M_BITMAPDATA->m_width = w;
 186     M_BITMAPDATA->m_height = h;
 187     M_BITMAPDATA->m_depth = d;
 188     M_BITMAPDATA->m_freePixmap = TRUE;
 189
 190     Display *dpy = (Display*) wxGetDisplay();
 191
 192     M_BITMAPDATA->m_display = dpy; /* MATTHEW: [4] Remember the display */
 193
 194     M_BITMAPDATA->m_pixmap = (WXPixmap) XCreatePixmap (dpy, RootWindow (dpy, DefaultScreen (dpy)),
 195         w, h, d);
 196
 197     M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_pixmap != (WXPixmap) 0) ;
 198     return M_BITMAPDATA->m_ok;
 199 }
 200
 201 bool wxBitmap::LoadFile(const wxString& filename, long type)
 202 {
 203     UnRef();
 204
 205     m_refData = new wxBitmapRefData;
 206
 207     wxBitmapHandler *handler = FindHandler(type);
 208
 209     if ( handler == NULL ) {
 210         wxImage image;
 211         if (!image.LoadFile( filename, type )) return FALSE;
 212         if (image.Ok())
 213         {
 214             *this = wxBitmap(image);
 215             return TRUE;
 216         }
 217         else return FALSE;
 218     }
 219
 220     return handler->LoadFile(this, filename, type, -1, -1);
 221 }
 222
 223 bool wxBitmap::Create(void *data, long type, int width, int height, int depth)
 224 {
 225     UnRef();
 226
 227     m_refData = new wxBitmapRefData;
 228
 229     wxBitmapHandler *handler = FindHandler(type);
 230
 231     if ( handler == NULL ) {
 232         wxLogWarning("no data bitmap handler for type %ld defined.", type);
 233
 234         return FALSE;
 235     }
 236
 237     return handler->Create(this, data, type, width, height, depth);
 238 }
 239
 240 bool wxBitmap::SaveFile(const wxString& filename, int type, const wxPalette *palette)
 241 {
 242     wxBitmapHandler *handler = FindHandler(type);
 243
 244     if ( handler == NULL ) { // try wxImage
 245         wxImage image = this->ConvertToImage();
 246         if (image.Ok()) return image.SaveFile( filename, type );
 247         else return FALSE;
 248     }
 249
 250     return handler->SaveFile(this, filename, type, palette);
 251 }
 252
 253 void wxBitmap::SetWidth(int w)
 254 {
 255     if (!M_BITMAPDATA)
 256         m_refData = new wxBitmapRefData;
 257
 258     M_BITMAPDATA->m_width = w;
 259 }
 260
 261 void wxBitmap::SetHeight(int h)
 262 {
 263     if (!M_BITMAPDATA)
 264         m_refData = new wxBitmapRefData;
 265
 266     M_BITMAPDATA->m_height = h;
 267 }
 268
 269 void wxBitmap::SetDepth(int d)
 270 {
 271     if (!M_BITMAPDATA)
 272         m_refData = new wxBitmapRefData;
 273
 274     M_BITMAPDATA->m_depth = d;
 275 }
 276
 277 void wxBitmap::SetQuality(int q)
 278 {
 279     if (!M_BITMAPDATA)
 280         m_refData = new wxBitmapRefData;
 281
 282     M_BITMAPDATA->m_quality = q;
 283 }
 284
 285 void wxBitmap::SetOk(bool isOk)
 286 {
 287     if (!M_BITMAPDATA)
 288         m_refData = new wxBitmapRefData;
 289
 290     M_BITMAPDATA->m_ok = isOk;
 291 }
 292
 293 void wxBitmap::SetPalette(const wxPalette& palette)
 294 {
 295     if (!M_BITMAPDATA)
 296         m_refData = new wxBitmapRefData;
 297
 298     M_BITMAPDATA->m_bitmapPalette = palette ;
 299 }
 300
 301 void wxBitmap::SetMask(wxMask *mask)
 302 {
 303     if (!M_BITMAPDATA)
 304         m_refData = new wxBitmapRefData;
 305
 306     M_BITMAPDATA->m_bitmapMask = mask ;
 307 }
 308
 309 wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
 310 {
 311     wxCHECK_MSG( Ok() &&
 312                  (rect.x >= 0) && (rect.y >= 0) &&
 313                  (rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height),
 314                  wxNullBitmap, wxT("invalid bitmap or bitmap region") );
 315
 316     wxBitmap ret( rect.width, rect.height, 0 );
 317     wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
 318
 319    // The remaining still TODO
 320    return ret;
 321 }
 322
 323 void wxBitmap::AddHandler(wxBitmapHandler *handler)
 324 {
 325     sm_handlers.Append(handler);
 326 }
 327
 328 void wxBitmap::InsertHandler(wxBitmapHandler *handler)
 329 {
 330     sm_handlers.Insert(handler);
 331 }
 332
 333 bool wxBitmap::RemoveHandler(const wxString& name)
 334 {
 335     wxBitmapHandler *handler = FindHandler(name);
 336     if ( handler )
 337     {
 338         sm_handlers.DeleteObject(handler);
 339         return TRUE;
 340     }
 341     else
 342         return FALSE;
 343 }
 344
 345 wxBitmapHandler *wxBitmap::FindHandler(const wxString& name)
 346 {
 347     wxNode *node = sm_handlers.First();
 348     while ( node )
 349     {
 350         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 351         if ( handler->GetName() == name )
 352             return handler;
 353         node = node->Next();
 354     }
 355     return NULL;
 356 }
 357
 358 wxBitmapHandler *wxBitmap::FindHandler(const wxString& extension, long bitmapType)
 359 {
 360     wxNode *node = sm_handlers.First();
 361     while ( node )
 362     {
 363         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 364         if ( handler->GetExtension() == extension &&
 365             (bitmapType == -1 || handler->GetType() == bitmapType) )
 366             return handler;
 367         node = node->Next();
 368     }
 369     return NULL;
 370 }
 371
 372 wxBitmapHandler *wxBitmap::FindHandler(long bitmapType)
 373 {
 374     wxNode *node = sm_handlers.First();
 375     while ( node )
 376     {
 377         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 378         if (handler->GetType() == bitmapType)
 379             return handler;
 380         node = node->Next();
 381     }
 382     return NULL;
 383 }
 384
 385 /*
 386 * wxMask
 387 */
 388
 389 wxMask::wxMask()
 390 {
 391     m_pixmap = (WXPixmap) 0;
 392 }
 393
 394 // Construct a mask from a bitmap and a colour indicating
 395 // the transparent area
 396 wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour)
 397 {
 398     m_pixmap = (WXPixmap) 0;
 399
 400     Create(bitmap, colour);
 401 }
 402
 403 // Construct a mask from a bitmap and a palette index indicating
 404 // the transparent area
 405 wxMask::wxMask(const wxBitmap& bitmap, int paletteIndex)
 406 {
 407     m_pixmap = (WXPixmap) 0;
 408
 409     Create(bitmap, paletteIndex);
 410 }
 411
 412 // Construct a mask from a mono bitmap (copies the bitmap).
 413 wxMask::wxMask(const wxBitmap& bitmap)
 414 {
 415     m_pixmap = (WXPixmap) 0;
 416
 417     Create(bitmap);
 418 }
 419
 420 wxMask::~wxMask()
 421 {
 422     // TODO: this may be the wrong display
 423     if ( m_pixmap )
 424         XFreePixmap ((Display*) wxGetDisplay(), (Pixmap) m_pixmap);
 425 }
 426
 427 // Create a mask from a mono bitmap (copies the bitmap).
 428 bool wxMask::Create(const wxBitmap& WXUNUSED(bitmap))
 429 {
 430     // TODO
 431     return FALSE;
 432 }
 433
 434 // Create a mask from a bitmap and a palette index indicating
 435 // the transparent area
 436 bool wxMask::Create(const wxBitmap& WXUNUSED(bitmap), int WXUNUSED(paletteIndex))
 437 {
 438     // TODO
 439     return FALSE;
 440 }
 441
 442 // Create a mask from a bitmap and a colour indicating
 443 // the transparent area
 444 bool wxMask::Create(const wxBitmap& WXUNUSED(bitmap), const wxColour& WXUNUSED(colour))
 445 {
 446     // TODO
 447     return FALSE;
 448 }
 449
 450 /*
 451 * wxBitmapHandler
 452 */
 453
 454 IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject)
 455
 456 bool wxBitmapHandler::Create(wxBitmap *WXUNUSED(bitmap), void *WXUNUSED(data), long WXUNUSED(type),
 457                              int WXUNUSED(width), int WXUNUSED(height), int WXUNUSED(depth))
 458 {
 459     return FALSE;
 460 }
 461
 462 bool wxBitmapHandler::LoadFile(wxBitmap *WXUNUSED(bitmap), const wxString& WXUNUSED(name), long WXUNUSED(type),
 463                                int WXUNUSED(desiredWidth), int WXUNUSED(desiredHeight))
 464 {
 465     return FALSE;
 466 }
 467
 468 bool wxBitmapHandler::SaveFile(wxBitmap *WXUNUSED(bitmap), const wxString& WXUNUSED(name), int WXUNUSED(type),
 469                                const wxPalette *WXUNUSED(palette))
 470 {
 471     return FALSE;
 472 }
 473
 474 /*
 475 * Standard handlers
 476 */
 477
 478 class WXDLLEXPORT wxXBMFileHandler: public wxBitmapHandler
 479 {
 480     DECLARE_DYNAMIC_CLASS(wxXBMFileHandler)
 481 public:
 482     inline wxXBMFileHandler()
 483     {
 484         m_name = "XBM file";
 485         m_extension = "xbm";
 486         m_type = wxBITMAP_TYPE_XBM;
 487     };
 488
 489     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 490         int desiredWidth, int desiredHeight);
 491 };
 492 IMPLEMENT_DYNAMIC_CLASS(wxXBMFileHandler, wxBitmapHandler)
 493
 494 bool wxXBMFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long WXUNUSED(flags),
 495                                 int WXUNUSED(desiredWidth), int WXUNUSED(desiredHeight))
 496 {
 497     M_BITMAPHANDLERDATA->m_freePixmap = TRUE;
 498
 499     int hotX, hotY;
 500     unsigned int w, h;
 501     Pixmap pixmap;
 502
 503     Display *dpy = (Display*) wxGetDisplay();
 504     M_BITMAPDATA->m_display = (WXDisplay*) dpy;
 505
 506     int value = XReadBitmapFile (dpy, RootWindow (dpy, DefaultScreen (dpy)),
 507         (char*) (const char*) name, &w, &h, &pixmap, &hotX, &hotY);
 508     M_BITMAPHANDLERDATA->m_width = w;
 509     M_BITMAPHANDLERDATA->m_height = h;
 510     M_BITMAPHANDLERDATA->m_depth = 1;
 511     M_BITMAPHANDLERDATA->m_pixmap = (WXPixmap) pixmap;
 512
 513     if ((value == BitmapFileInvalid) ||
 514         (value == BitmapOpenFailed) ||
 515         (value == BitmapNoMemory))
 516     {
 517         M_BITMAPHANDLERDATA->m_ok = FALSE;
 518         M_BITMAPHANDLERDATA->m_pixmap = (WXPixmap) 0;
 519     }
 520     else
 521         M_BITMAPHANDLERDATA->m_ok = TRUE;
 522
 523     return M_BITMAPHANDLERDATA->m_ok ;
 524 }
 525
 526 class WXDLLEXPORT wxXBMDataHandler: public wxBitmapHandler
 527 {
 528     DECLARE_DYNAMIC_CLASS(wxXBMDataHandler)
 529 public:
 530     inline wxXBMDataHandler()
 531     {
 532         m_name = "XBM data";
 533         m_extension = "xbm";
 534         m_type = wxBITMAP_TYPE_XBM_DATA;
 535     };
 536
 537     virtual bool Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth = 1);
 538 };
 539 IMPLEMENT_DYNAMIC_CLASS(wxXBMDataHandler, wxBitmapHandler)
 540
 541 bool wxXBMDataHandler::Create( wxBitmap *bitmap, void *data, long WXUNUSED(flags),
 542                               int width, int height, int WXUNUSED(depth))
 543 {
 544     M_BITMAPHANDLERDATA->m_width = width;
 545     M_BITMAPHANDLERDATA->m_height = height;
 546     M_BITMAPHANDLERDATA->m_depth = 1;
 547     M_BITMAPHANDLERDATA->m_freePixmap = TRUE;
 548
 549     Display *dpy = (Display*) wxGetDisplay();
 550     M_BITMAPHANDLERDATA->m_display = (WXDisplay*) dpy;
 551
 552     M_BITMAPHANDLERDATA->m_pixmap = (WXPixmap) XCreateBitmapFromData (dpy, RootWindow (dpy, DefaultScreen (dpy)), (char*) data, width, height);
 553     M_BITMAPHANDLERDATA->m_ok = (M_BITMAPHANDLERDATA->m_pixmap != (WXPixmap) 0) ;
 554
 555     // code for wxControl. TODO: can we avoid doing this until we need it?
 556     // E.g. have CreateButtonPixmaps which is called on demand.
 557     XImage* image = (XImage *) XtMalloc (sizeof (XImage));
 558     image->width = width;
 559     image->height = height;
 560     image->data = (char*) data;
 561     image->depth = 1;
 562     image->xoffset = 0;
 563     image->format = XYBitmap;
 564     image->byte_order = LSBFirst;
 565     image->bitmap_unit = 8;
 566     image->bitmap_bit_order = LSBFirst;
 567     image->bitmap_pad = 8;
 568     image->bytes_per_line = (width + 7) >> 3;
 569
 570     char tmp[128];
 571     sprintf (tmp, "Im%x", (unsigned int) image);
 572     XmInstallImage (image, tmp);
 573
 574     // Build our manually stipped pixmap.
 575
 576     int bpl = (width + 7) / 8;
 577     char *data1 = new char[height * bpl];
 578     char* bits = (char*) data;
 579     int i;
 580     for (i = 0; i < height; i++)
 581     {
 582         int mask = i % 2 ? 0x55 : 0xaa;
 583         int j;
 584         for (j = 0; j < bpl; j++)
 585             data1[i * bpl + j] = bits[i * bpl + j] & mask;
 586     }
 587     XImage* insensImage = (XImage *) XtMalloc (sizeof (XImage));
 588     insensImage->width = width;
 589     insensImage->height = height;
 590     insensImage->data = data1;
 591     insensImage->depth = 1;
 592     insensImage->xoffset = 0;
 593     insensImage->format = XYBitmap;
 594     insensImage->byte_order = LSBFirst;
 595     insensImage->bitmap_unit = 8;
 596     insensImage->bitmap_bit_order = LSBFirst;
 597     insensImage->bitmap_pad = 8;
 598     insensImage->bytes_per_line = bpl;
 599
 600     sprintf (tmp, "Not%x", (unsigned int)insensImage);
 601     XmInstallImage (insensImage, tmp);
 602
 603     M_BITMAPHANDLERDATA->m_image = (WXImage*) image;
 604     M_BITMAPHANDLERDATA->m_insensImage = (WXImage*) insensImage;
 605
 606     return TRUE;
 607 }
 608
 609 #if wxHAVE_LIB_XPM
 610 class WXDLLEXPORT wxXPMFileHandler: public wxBitmapHandler
 611 {
 612     DECLARE_DYNAMIC_CLASS(wxXPMFileHandler)
 613 public:
 614     inline wxXPMFileHandler()
 615     {
 616         m_name = "XPM file";
 617         m_extension = "xpm";
 618         m_type = wxBITMAP_TYPE_XPM;
 619     };
 620
 621     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 622         int desiredWidth, int desiredHeight);
 623     virtual bool SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette = NULL);
 624 };
 625
 626 IMPLEMENT_DYNAMIC_CLASS(wxXPMFileHandler, wxBitmapHandler)
 627
 628 bool wxXPMFileHandler::LoadFile( wxBitmap *bitmap, const wxString& name, long WXUNUSED(flags),
 629                                 int WXUNUSED(desiredWidth), int WXUNUSED(desiredHeight) )
 630 {
 631     Display *dpy = (Display*) wxGetDisplay();
 632     M_BITMAPHANDLERDATA->m_display = (WXDisplay*) dpy;
 633
 634     XpmAttributes xpmAttr;
 635     Pixmap pixmap;
 636     Pixmap mask = 0;
 637
 638     M_BITMAPHANDLERDATA->m_ok = FALSE;
 639     xpmAttr.valuemask = XpmReturnInfos | XpmCloseness;
 640     xpmAttr.closeness = 40000;
 641     int errorStatus = XpmReadFileToPixmap(dpy,
 642         RootWindow(dpy, DefaultScreen(dpy)), (char*) (const char*) name,
 643         &pixmap, &mask, &xpmAttr);
 644
 645     if (errorStatus == XpmSuccess)
 646     {
 647         M_BITMAPHANDLERDATA->m_pixmap = (WXPixmap) pixmap;
 648         if ( mask )
 649         {
 650             M_BITMAPHANDLERDATA->m_bitmapMask = new wxMask;
 651             M_BITMAPHANDLERDATA->m_bitmapMask->SetPixmap((WXPixmap) mask);
 652         }
 653
 654         unsigned int depthRet;
 655         int xRet, yRet;
 656         unsigned int widthRet, heightRet, borderWidthRet;
 657         Window rootWindowRet;
 658         XGetGeometry(dpy, pixmap, &rootWindowRet, &xRet, &yRet,
 659             &widthRet, &heightRet, &borderWidthRet, &depthRet);
 660
 661         M_BITMAPHANDLERDATA->m_width = xpmAttr.width;
 662         M_BITMAPHANDLERDATA->m_height = xpmAttr.height;
 663
 664         /*
 665         if ( xpmAttr.npixels > 2 )
 666         {
 667         M_BITMAPHANDLERDATA->m_depth = 8;       // TODO: next time not just a guess :-) ...
 668         } else
 669         {
 670         M_BITMAPHANDLERDATA->m_depth = 1;       // mono
 671         }
 672         */
 673
 674         M_BITMAPHANDLERDATA->m_depth = depthRet;
 675
 676         M_BITMAPHANDLERDATA->m_numColors = xpmAttr.npixels;
 677
 678         XpmFreeAttributes(&xpmAttr);
 679
 680         M_BITMAPHANDLERDATA->m_ok = TRUE;
 681         return TRUE;
 682     } else
 683     {
 684         //      XpmDebugError(errorStatus, name);
 685         M_BITMAPHANDLERDATA->m_ok = FALSE;
 686         return FALSE;
 687     }
 688 }
 689
 690 bool wxXPMFileHandler::SaveFile( wxBitmap *bitmap, const wxString& name, int WXUNUSED(type),
 691                                 const wxPalette *WXUNUSED(palette))
 692 {
 693     if (M_BITMAPHANDLERDATA->m_ok && M_BITMAPHANDLERDATA->m_pixmap)
 694     {
 695         Display *dpy =  (Display*) M_BITMAPHANDLERDATA->m_display;
 696         int errorStatus = XpmWriteFileFromPixmap(dpy, (char*) (const char*) name,
 697             (Pixmap) M_BITMAPHANDLERDATA->m_pixmap,
 698             (M_BITMAPHANDLERDATA->m_bitmapMask ? (Pixmap) M_BITMAPHANDLERDATA->m_bitmapMask->GetPixmap() : (Pixmap) 0),
 699             (XpmAttributes *) NULL);
 700         if (errorStatus == XpmSuccess)
 701             return TRUE;
 702         else
 703             return FALSE;
 704     }
 705     else
 706         return FALSE;
 707 }
 708
 709 class WXDLLEXPORT wxXPMDataHandler: public wxBitmapHandler
 710 {
 711     DECLARE_DYNAMIC_CLASS(wxXPMDataHandler)
 712 public:
 713     inline wxXPMDataHandler()
 714     {
 715         m_name = "XPM data";
 716         m_extension = "xpm";
 717         m_type = wxBITMAP_TYPE_XPM_DATA;
 718     };
 719
 720     virtual bool Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth = 1);
 721 };
 722 IMPLEMENT_DYNAMIC_CLASS(wxXPMDataHandler, wxBitmapHandler)
 723
 724 bool wxXPMDataHandler::Create( wxBitmap *bitmap, void *data, long WXUNUSED(flags),
 725                               int width, int height, int WXUNUSED(depth))
 726 {
 727     M_BITMAPHANDLERDATA->m_width = width;
 728     M_BITMAPHANDLERDATA->m_height = height;
 729     M_BITMAPHANDLERDATA->m_depth = 1;
 730     M_BITMAPHANDLERDATA->m_freePixmap = TRUE;
 731
 732     Display *dpy = (Display*) wxGetDisplay();
 733     M_BITMAPHANDLERDATA->m_display = (WXDisplay*) dpy;
 734
 735     XpmAttributes xpmAttr;
 736
 737     xpmAttr.valuemask = XpmReturnInfos;    /* nothing yet, but get infos back */
 738
 739     XpmColorSymbol symbolicColors[4];
 740     if (sg_Control && sg_Control->GetMainWidget())
 741     {
 742         symbolicColors[0].name = "foreground";
 743         symbolicColors[0].value = NULL;
 744         symbolicColors[1].name = "background";
 745         symbolicColors[1].value = NULL;
 746         XtVaGetValues((Widget) sg_Control->GetMainWidget(),
 747             XmNforeground,  &symbolicColors[0].pixel,
 748             XmNbackground,  &symbolicColors[1].pixel,NULL);
 749         xpmAttr.numsymbols = 2;
 750         xpmAttr.colorsymbols = symbolicColors;
 751         xpmAttr.valuemask |= XpmColorSymbols;    // add flag
 752     }
 753
 754     Pixmap pixmap;
 755     Pixmap mask = 0;
 756     int ErrorStatus = XpmCreatePixmapFromData(dpy, RootWindow(dpy, DefaultScreen(dpy)),
 757         (char**) data, &pixmap, &mask, &xpmAttr);
 758     if (ErrorStatus == XpmSuccess)
 759     {
 760         // Set attributes
 761         M_BITMAPHANDLERDATA->m_width = xpmAttr.width;
 762         M_BITMAPHANDLERDATA->m_height = xpmAttr.height;
 763
 764         unsigned int depthRet;
 765         int xRet, yRet;
 766         unsigned int widthRet, heightRet, borderWidthRet;
 767         Window rootWindowRet;
 768         XGetGeometry(dpy, pixmap, &rootWindowRet, &xRet, &yRet,
 769             &widthRet, &heightRet, &borderWidthRet, &depthRet);
 770
 771             /*
 772             if ( xpmAttr.npixels > 2 )
 773             {
 774             M_BITMAPHANDLERDATA->m_depth = 8;    // next time not just a guess :-) ...
 775             } else
 776             {
 777             M_BITMAPHANDLERDATA->m_depth = 1;    // mono
 778             }
 779         */
 780
 781         M_BITMAPHANDLERDATA->m_depth = depthRet;
 782
 783         M_BITMAPHANDLERDATA->m_numColors = xpmAttr.npixels;
 784         XpmFreeAttributes(&xpmAttr);
 785         M_BITMAPHANDLERDATA->m_ok = TRUE;
 786         M_BITMAPHANDLERDATA->m_pixmap = (WXPixmap) pixmap;
 787         if ( mask )
 788         {
 789             M_BITMAPHANDLERDATA->m_bitmapMask = new wxMask;
 790             M_BITMAPHANDLERDATA->m_bitmapMask->SetPixmap((WXPixmap) mask);
 791         }
 792     }
 793     else
 794     {
 795         //      XpmDebugError(ErrorStatus, NULL);
 796         M_BITMAPHANDLERDATA->m_ok = FALSE;
 797     }
 798     return M_BITMAPHANDLERDATA->m_ok ;
 799 }
 800
 801 #endif // wxHAVE_LIB_XPM
 802
 803 void wxBitmap::CleanUpHandlers()
 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()
 817 {
 818     // Initialize all standard bitmap or derived class handlers here.
 819     AddHandler(new wxXBMFileHandler);
 820     AddHandler(new wxXBMDataHandler);
 821
 822     // XPM is considered standard for Motif, although it can be omitted if
 823     // libXpm is not installed
 824 #if wxHAVE_LIB_XPM
 825     AddHandler(new wxXPMFileHandler);
 826     AddHandler(new wxXPMDataHandler);
 827 #endif // wxHAVE_LIB_XPM
 828 }
 829
 830 WXPixmap wxBitmap::GetLabelPixmap (WXWidget w)
 831 {
 832     if (!M_BITMAPDATA)
 833         return (WXPixmap)NULL;
 834     if (M_BITMAPDATA->m_image == (WXPixmap) 0)
 835         return M_BITMAPDATA->m_pixmap;
 836
 837     Display *dpy = (Display*) M_BITMAPDATA->m_display;
 838
 839 #ifdef FOO
 840     /*
 841     If we do:
 842     if (labelPixmap) return labelPixmap;
 843     things can be wrong, because colors can have been changed.
 844
 845       If we do:
 846       if (labelPixmap)
 847       XmDestroyPixmap(DefaultScreenOfDisplay(dpy),labelPixmap) ;
 848       we got BadDrawable if the pixmap is referenced by multiples widgets
 849
 850         this is a catch22!!
 851
 852       So, before doing thing really clean, I just do nothing; if the pixmap is
 853       referenced by many widgets, Motif performs caching functions.
 854       And if pixmap is referenced with multiples colors, we just have some
 855       memory leaks... I hope we can deal with them...
 856     */
 857     // Must be destroyed, because colours can have been changed!
 858     if (M_BITMAPDATA->m_labelPixmap)
 859         XmDestroyPixmap (DefaultScreenOfDisplay (dpy), M_BITMAPDATA->m_labelPixmap);
 860 #endif
 861
 862     char tmp[128];
 863     sprintf (tmp, "Im%x", (unsigned int) M_BITMAPDATA->m_image);
 864
 865     Pixel fg, bg;
 866     Widget widget = (Widget) w;
 867
 868     while (XmIsGadget ( widget ))
 869         widget = XtParent (widget);
 870     XtVaGetValues (widget, XmNbackground, &bg, XmNforeground, &fg, NULL);
 871
 872     M_BITMAPDATA->m_labelPixmap = (WXPixmap) XmGetPixmap (DefaultScreenOfDisplay (dpy), tmp, fg, bg);
 873
 874     return M_BITMAPDATA->m_labelPixmap;
 875 }
 876
 877 WXPixmap wxBitmap::GetArmPixmap (WXWidget w)
 878 {
 879     if (M_BITMAPDATA->m_image == (WXPixmap) 0)
 880         return M_BITMAPDATA->m_pixmap;
 881
 882     Display *dpy = (Display*) M_BITMAPDATA->m_display;
 883 #ifdef FOO
 884     // See GetLabelPixmap () comment
 885
 886     // Must be destroyed, because colours can have been changed!
 887     if (M_BITMAPDATA->m_armPixmap)
 888         XmDestroyPixmap (DefaultScreenOfDisplay (dpy), M_BITMAPDATA->m_armPixmap);
 889 #endif
 890
 891     char tmp[128];
 892     sprintf (tmp, "Im%x", (unsigned int) M_BITMAPDATA->m_image);
 893
 894     Pixel fg, bg;
 895     Widget widget = (Widget) w;
 896
 897     XtVaGetValues (widget, XmNarmColor, &bg, NULL);
 898     while (XmIsGadget (widget))
 899         widget = XtParent (widget);
 900     XtVaGetValues (widget, XmNforeground, &fg, NULL);
 901
 902     M_BITMAPDATA->m_armPixmap = (WXPixmap) XmGetPixmap (DefaultScreenOfDisplay (dpy), tmp, fg, bg);
 903
 904     return M_BITMAPDATA->m_armPixmap;
 905 }
 906
 907 WXPixmap wxBitmap::GetInsensPixmap (WXWidget w)
 908 {
 909     Display *dpy = (Display*) M_BITMAPDATA->m_display;
 910
 911     if (!M_BITMAPDATA)
 912         return (WXPixmap)NULL;
 913     if (M_BITMAPDATA->m_insensPixmap)
 914         return M_BITMAPDATA->m_insensPixmap;
 915
 916     if (!w)
 917     {
 918         M_BITMAPDATA->m_insensPixmap = (WXPixmap) XCreateInsensitivePixmap(dpy, (Pixmap) M_BITMAPDATA->m_pixmap);
 919         if (M_BITMAPDATA->m_insensPixmap)
 920             return M_BITMAPDATA->m_insensPixmap;
 921         else
 922             return M_BITMAPDATA->m_pixmap;
 923     }
 924
 925     if (M_BITMAPDATA->m_insensImage == (WXPixmap) 0)
 926         return M_BITMAPDATA->m_pixmap;
 927
 928 #ifdef FOO
 929     See GetLabelPixmap () comment
 930         // Must be destroyed, because colours can have been changed!
 931         if (M_BITMAPDATA->m_insensPixmap)
 932             XmDestroyPixmap (DefaultScreenOfDisplay (dpy), (Pixmap) M_BITMAPDATA->m_insensPixmap);
 933 #endif
 934
 935     char tmp[128];
 936     sprintf (tmp, "Not%x", (unsigned int) M_BITMAPDATA->m_insensImage);
 937
 938     Pixel fg, bg;
 939     Widget widget = (Widget) w;
 940
 941     while (XmIsGadget (widget))
 942         widget = XtParent (widget);
 943     XtVaGetValues (widget, XmNbackground, &bg, XmNforeground, &fg, NULL);
 944
 945     M_BITMAPDATA->m_insensPixmap = (WXPixmap) XmGetPixmap (DefaultScreenOfDisplay (dpy), tmp, fg, bg);
 946
 947     return M_BITMAPDATA->m_insensPixmap;
 948 }
 949
 950 // We may need this sometime...
 951
 952 /****************************************************************************
 953
 954   NAME
 955   XCreateInsensitivePixmap - create a grayed-out copy of a pixmap
 956
 957   SYNOPSIS
 958   Pixmap XCreateInsensitivePixmap( Display *display, Pixmap pixmap )
 959
 960   DESCRIPTION
 961   This function creates a grayed-out copy of the argument pixmap, suitable
 962   for use as a XmLabel's XmNlabelInsensitivePixmap resource.
 963
 964   RETURN VALUES
 965   The return value is the new Pixmap id or zero on error.  Errors include
 966   a NULL display argument or an invalid Pixmap argument.
 967
 968   ERRORS
 969   If one of the XLib functions fail, it will produce a X error.  The
 970   default X error handler prints a diagnostic and calls exit().
 971
 972   SEE ALSO
 973   XCopyArea(3), XCreateBitmapFromData(3), XCreateGC(3), XCreatePixmap(3),
 974   XFillRectangle(3), exit(2)
 975
 976   AUTHOR
 977   John R Veregge - john@puente.jpl.nasa.gov
 978   Advanced Engineering and Prototyping Group (AEG)
 979   Information Systems Technology Section (395)
 980   Jet Propulsion Lab - Calif Institute of Technology
 981
 982 *****************************************************************************/
 983
 984 Pixmap
 985 XCreateInsensitivePixmap( Display *display, Pixmap pixmap )
 986
 987 {
 988     static char stipple_data[] =
 989         {
 990             0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA,
 991             0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA,
 992             0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA,
 993             0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA
 994         };
 995     GC        gc;
 996     Pixmap    ipixmap, stipple;
 997     unsigned    width, height, depth;
 998
 999     Window    window;    /* These return values */
1000     unsigned    border;    /* from XGetGeometry() */
1001     int        x, y;    /* are not needed.     */
1002
1003     ipixmap = 0;
1004
1005     if ( NULL == display || 0 == pixmap )
1006         return ipixmap;
1007
1008     if ( 0 == XGetGeometry( display, pixmap, &window, &x, &y,
1009                 &width, &height, &border, &depth )
1010        )
1011         return ipixmap; /* BadDrawable: probably an invalid pixmap */
1012
1013     /* Get the stipple pixmap to be used to 'gray-out' the argument pixmap.
1014      */
1015     stipple = XCreateBitmapFromData( display, pixmap, stipple_data, 16, 16 );
1016     if ( 0 != stipple )
1017     {
1018         gc = XCreateGC( display, pixmap, (XtGCMask)0, (XGCValues*)NULL );
1019         if ( NULL != gc )
1020         {
1021             /* Create an identical copy of the argument pixmap.
1022              */
1023             ipixmap = XCreatePixmap( display, pixmap, width, height, depth );
1024             if ( 0 != ipixmap )
1025             {
1026                 /* Copy the argument pixmap into the new pixmap.
1027                  */
1028                 XCopyArea( display, pixmap, ipixmap,
1029                         gc, 0, 0, width, height, 0, 0 );
1030
1031                 /* Refill the new pixmap using the stipple algorithm/pixmap.
1032                  */
1033                 XSetStipple( display, gc, stipple );
1034                 XSetFillStyle( display, gc, FillStippled );
1035                 XFillRectangle( display, ipixmap, gc, 0, 0, width, height );
1036             }
1037             XFreeGC( display, gc );
1038         }
1039         XFreePixmap( display, stipple );
1040     }
1041     return ipixmap;
1042 }
1043
1044 // Creates a bitmap with transparent areas drawn in
1045 // the given colour.
1046 wxBitmap wxCreateMaskedBitmap(const wxBitmap& bitmap, wxColour& colour)
1047 {
1048     wxBitmap newBitmap(bitmap.GetWidth(),
1049         bitmap.GetHeight(),
1050         bitmap.GetDepth());
1051     wxMemoryDC destDC;
1052     wxMemoryDC srcDC;
1053     srcDC.SelectObject(bitmap);
1054     destDC.SelectObject(newBitmap);
1055
1056     wxBrush brush(colour, wxSOLID);
1057     destDC.SetOptimization(FALSE);
1058     destDC.SetBackground(brush);
1059     destDC.Clear();
1060     destDC.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(), & srcDC, 0, 0, wxCOPY, TRUE);
1061
1062     return newBitmap;
1063 }
1064
1065
1066
1067
1068 //-----------------------------------------------------------------------------
1069 // wxImage conversion routines
1070 //-----------------------------------------------------------------------------
1071
1072 /*
1073
1074 Date: Wed, 05 Jan 2000 11:45:40 +0100
1075 From: Frits Boel <boel@niob.knaw.nl>
1076 To: julian.smart@ukonline.co.uk
1077 Subject: Patch for Motif ConvertToBitmap
1078
1079 Hi Julian,
1080
1081 I've been working on a wxWin application for image processing. From the
1082 beginning, I was surprised by the (lack of) speed of ConvertToBitmap,
1083 till I looked in the source code of image.cpp. I saw that converting a
1084 wxImage to a bitmap with 8-bit pixels is done with comparing every pixel
1085 to the 256 colors of the palet. A very time-consuming piece of code!
1086
1087 Because I wanted a faster application, I've made a 'patch' for this. In
1088 short: every pixel of the image is compared to a sorted list with
1089 colors. If the color is found in the list, the palette entry is
1090 returned; if the color is not found, the color palette is searched and
1091 then the palette entry is returned and the color added to the sorted
1092 list.
1093
1094 Maybe there is another method for this, namely changing the palette
1095 itself (if the colors are known, as is the case with tiffs with a
1096 colormap). I did not look at this, maybe someone else did?
1097
1098 The code of the patch is attached, have a look on it, and maybe you will
1099 ship it with the next release of wxMotif?
1100
1101 Regards,
1102
1103 Frits Boel
1104 Software engineer at Hubrecht Laboratory, The Netherlands.
1105
1106 */
1107
1108 class wxSearchColor
1109 {
1110 public:
1111   wxSearchColor( void );
1112   wxSearchColor( int size, XColor *colors );
1113   ~wxSearchColor( void );
1114
1115   int SearchColor( int r, int g, int b );
1116 private:
1117   int AddColor( unsigned int value, int pos );
1118
1119   int          size;
1120   XColor       *colors;
1121   unsigned int *color;
1122   int          *entry;
1123
1124   int bottom;
1125   int top;
1126 };
1127
1128 wxSearchColor::wxSearchColor( void )
1129 {
1130   size   = 0;
1131   colors = (XColor*) NULL;
1132   color  = (unsigned int *) NULL;
1133   entry  = (int*) NULL;
1134
1135   bottom = 0;
1136   top    = 0;
1137 }
1138
1139 wxSearchColor::wxSearchColor( int size_, XColor *colors_ )
1140 {
1141     int i;
1142     size   = size_;
1143     colors = colors_;
1144     color  = new unsigned int[size];
1145     entry  = new int         [size];
1146
1147     for (i = 0; i < size; i++ ) {
1148         entry[i] = -1;
1149     }
1150
1151     bottom = top = ( size >> 1 );
1152 }
1153
1154 wxSearchColor::~wxSearchColor( void )
1155 {
1156   if ( color ) delete color;
1157   if ( entry ) delete entry;
1158 }
1159
1160 int wxSearchColor::SearchColor( int r, int g, int b )
1161 {
1162   unsigned int value = ( ( ( r * 256 ) + g ) * 256 ) + b;
1163   int          begin = bottom;
1164   int          end   = top;
1165   int          middle = 0;
1166
1167   while ( begin <= end ) {
1168
1169     middle = ( begin + end ) >> 1;
1170
1171     if ( value == color[middle] ) {
1172       return( entry[middle] );
1173     } else if ( value < color[middle] ) {
1174       end = middle - 1;
1175     } else {
1176       begin = middle + 1;
1177     }
1178
1179   }
1180
1181   return AddColor( value, middle );
1182 }
1183
1184 int wxSearchColor::AddColor( unsigned int value, int pos )
1185 {
1186   int i;
1187   int pixel = -1;
1188   int max = 3 * (65536);
1189   for ( i = 0; i < 256; i++ ) {
1190     int rdiff = ((value >> 8) & 0xFF00 ) - colors[i].red;
1191     int gdiff = ((value     ) & 0xFF00 ) - colors[i].green;
1192     int bdiff = ((value << 8) & 0xFF00 ) - colors[i].blue;
1193     int sum = abs (rdiff) + abs (gdiff) + abs (bdiff);
1194     if (sum < max) { pixel = i; max = sum; }
1195   }
1196
1197   if ( entry[pos] < 0 ) {
1198     color[pos] = value;
1199     entry[pos] = pixel;
1200   } else if ( value < color[pos] ) {
1201
1202     if ( bottom > 0 ) {
1203       for ( i = bottom; i < pos; i++ ) {
1204         color[i-1] = color[i];
1205         entry[i-1] = entry[i];
1206       }
1207       bottom--;
1208       color[pos-1] = value;
1209       entry[pos-1] = pixel;
1210     } else if ( top < size-1 ) {
1211       for ( i = top; i >= pos; i-- ) {
1212         color[i+1] = color[i];
1213         entry[i+1] = entry[i];
1214       }
1215       top++;
1216       color[pos] = value;
1217       entry[pos] = pixel;
1218     }
1219
1220   } else {
1221
1222     if ( top < size-1 ) {
1223       for ( i = top; i > pos; i-- ) {
1224         color[i+1] = color[i];
1225         entry[i+1] = entry[i];
1226       }
1227       top++;
1228       color[pos+1] = value;
1229       entry[pos+1] = pixel;
1230     } else if ( bottom > 0 ) {
1231       for ( i = bottom; i < pos; i++ ) {
1232         color[i-1] = color[i];
1233         entry[i-1] = entry[i];
1234       }
1235       bottom--;
1236       color[pos] = value;
1237       entry[pos] = pixel;
1238     }
1239
1240   }
1241
1242   return( pixel );
1243 }
1244
1245
1246 bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
1247 {
1248     wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") )
1249     wxCHECK_MSG( depth == -1, FALSE, wxT("invalid bitmap depth") )
1250
1251     m_refData = new wxBitmapRefData();
1252
1253     int width = image.GetWidth();
1254     int height = image.GetHeight();
1255
1256     SetHeight( height );
1257     SetWidth( width );
1258
1259     Display *dpy = (Display*) wxGetDisplay();
1260     Visual* vis = DefaultVisual( dpy, DefaultScreen( dpy ) );
1261     int bpp = DefaultDepth( dpy, DefaultScreen( dpy ) );
1262
1263     // Create image
1264
1265     XImage *data_image = XCreateImage( dpy, vis, bpp, ZPixmap, 0, 0, width, height, 32, 0 );
1266     data_image->data = (char*) malloc( data_image->bytes_per_line * data_image->height );
1267
1268     Create( width, height, bpp );
1269
1270     // Create mask
1271
1272     XImage *mask_image = (XImage*) NULL;
1273     if (image.HasMask())
1274     {
1275         mask_image = XCreateImage( dpy, vis, 1, ZPixmap, 0, 0, width, height, 32, 0 );
1276         mask_image->data = (char*) malloc( mask_image->bytes_per_line * mask_image->height );
1277     }
1278
1279     // Retrieve depth info
1280
1281     XVisualInfo vinfo_template;
1282     XVisualInfo *vi;
1283
1284     vinfo_template.visual = vis;
1285     vinfo_template.visualid = XVisualIDFromVisual( vis );
1286     vinfo_template.depth = bpp;
1287     int nitem = 0;
1288
1289     vi = XGetVisualInfo( dpy, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
1290
1291     wxCHECK_MSG( vi, FALSE, wxT("no visual") );
1292
1293     XFree( vi );
1294
1295     if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15;
1296     if (bpp < 8) bpp = 8;
1297
1298     // Render
1299
1300     enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR };
1301     byte_order b_o = RGB;
1302
1303     if (bpp >= 24)
1304     {
1305         if ((vi->red_mask > vi->green_mask) && (vi->green_mask > vi->blue_mask))      b_o = RGB;
1306         else if ((vi->red_mask > vi->blue_mask) && (vi->blue_mask > vi->green_mask))  b_o = RGB;
1307         else if ((vi->blue_mask > vi->red_mask) && (vi->red_mask > vi->green_mask))   b_o = BRG;
1308         else if ((vi->blue_mask > vi->green_mask) && (vi->green_mask > vi->red_mask)) b_o = BGR;
1309         else if ((vi->green_mask > vi->red_mask) && (vi->red_mask > vi->blue_mask))   b_o = GRB;
1310         else if ((vi->green_mask > vi->blue_mask) && (vi->blue_mask > vi->red_mask))  b_o = GBR;
1311     }
1312
1313     int r_mask = image.GetMaskRed();
1314     int g_mask = image.GetMaskGreen();
1315     int b_mask = image.GetMaskBlue();
1316
1317     XColor colors[256];
1318     if (bpp == 8)
1319     {
1320         Colormap cmap = (Colormap) wxTheApp->GetMainColormap( dpy );
1321
1322         for (int i = 0; i < 256; i++) colors[i].pixel = i;
1323         XQueryColors( dpy, cmap, colors, 256 );
1324     }
1325
1326     wxSearchColor scolor( 256, colors );
1327     unsigned char* data = image.GetData();
1328
1329     bool hasMask = image.HasMask();
1330
1331     int index = 0;
1332     for (int y = 0; y < height; y++)
1333     {
1334         for (int x = 0; x < width; x++)
1335         {
1336             int r = data[index];
1337             index++;
1338             int g = data[index];
1339             index++;
1340             int b = data[index];
1341             index++;
1342
1343             if (hasMask)
1344             {
1345               if ((r == r_mask) && (b == b_mask) && (g == g_mask))
1346                 XPutPixel( mask_image, x, y, 0 );
1347               else
1348                 XPutPixel( mask_image, x, y, 1 );
1349             }
1350
1351             switch (bpp)
1352             {
1353             case 8:
1354                 {
1355 #if 0 // Old, slower code
1356                     int pixel = -1;
1357                     /*
1358                     if (wxTheApp->m_colorCube)
1359                     {
1360                     pixel = wxTheApp->m_colorCube
1361                     [ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
1362                     }
1363                     else
1364                     {
1365                     */
1366                     int max = 3 * (65536);
1367                     for (int i = 0; i < 256; i++)
1368                     {
1369                         int rdiff = (r << 8) - colors[i].red;
1370                         int gdiff = (g << 8) - colors[i].green;
1371                         int bdiff = (b << 8) - colors[i].blue;
1372                         int sum = abs (rdiff) + abs (gdiff) + abs (bdiff);
1373                         if (sum < max) { pixel = i; max = sum; }
1374                     }
1375                     /*
1376                     }
1377                     */
1378 #endif
1379
1380                     // And this is all to get the 'right' color...
1381                     int pixel = scolor.SearchColor( r, g, b );
1382                     XPutPixel( data_image, x, y, pixel );
1383                     break;
1384                 }
1385             case 15:
1386                 {
1387                     int pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3);
1388                     XPutPixel( data_image, x, y, pixel );
1389                     break;
1390                 }
1391             case 16:
1392                 {
1393                     int pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3);
1394                     XPutPixel( data_image, x, y, pixel );
1395                     break;
1396                 }
1397             case 32:
1398             case 24:
1399                 {
1400                     int pixel = 0;
1401                     switch (b_o)
1402                     {
1403                     case RGB: pixel = (r << 16) | (g << 8) | b; break;
1404                     case RBG: pixel = (r << 16) | (b << 8) | g; break;
1405                     case BRG: pixel = (b << 16) | (r << 8) | g; break;
1406                     case BGR: pixel = (b << 16) | (g << 8) | r; break;
1407                     case GRB: pixel = (g << 16) | (r << 8) | b; break;
1408                     case GBR: pixel = (g << 16) | (b << 8) | r; break;
1409                     }
1410                     XPutPixel( data_image, x, y, pixel );
1411                 }
1412             default: break;
1413             }
1414         } // for
1415     }  // for
1416
1417     // Blit picture
1418
1419     XGCValues gcvalues;
1420     gcvalues.foreground = BlackPixel( dpy, DefaultScreen( dpy ) );
1421     GC gc = XCreateGC( dpy, RootWindow ( dpy, DefaultScreen(dpy) ), GCForeground, &gcvalues );
1422     XPutImage( dpy, (Drawable)GetPixmap(), gc, data_image, 0, 0, 0, 0, width, height );
1423
1424     XDestroyImage( data_image );
1425     XFreeGC( dpy, gc );
1426
1427     // Blit mask
1428     if (image.HasMask())
1429     {
1430         wxBitmap maskBitmap(width, height, 1);
1431
1432         GC gcMask = XCreateGC( dpy, (Pixmap) maskBitmap.GetPixmap(), (XtGCMask) 0, (XGCValues*)NULL );
1433         XPutImage( dpy, (Drawable)maskBitmap.GetPixmap(), gcMask, mask_image, 0, 0, 0, 0, width, height );
1434
1435         XDestroyImage( mask_image );
1436         XFreeGC( dpy, gcMask );
1437
1438         wxMask* mask = new wxMask;
1439         mask->SetPixmap(maskBitmap.GetPixmap());
1440
1441         SetMask(mask);
1442
1443         maskBitmap.SetPixmapNull();
1444     }
1445
1446
1447     return TRUE;
1448 }
1449
1450 wxImage wxBitmap::ConvertToImage() const
1451 {
1452     wxImage image;
1453
1454     wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
1455
1456     Display *dpy = (Display*) wxGetDisplay();
1457     Visual* vis = DefaultVisual( dpy, DefaultScreen( dpy ) );
1458     int bpp = DefaultDepth( dpy, DefaultScreen( dpy ) );
1459
1460     XImage *ximage = XGetImage( dpy,
1461         (Drawable)GetPixmap(),
1462         0, 0,
1463         GetWidth(), GetHeight(),
1464         AllPlanes, ZPixmap );
1465
1466     wxCHECK_MSG( ximage, wxNullImage, wxT("couldn't create image") );
1467
1468     image.Create( GetWidth(), GetHeight() );
1469     char unsigned *data = image.GetData();
1470
1471     if (!data)
1472     {
1473         XDestroyImage( ximage );
1474         wxFAIL_MSG( wxT("couldn't create image") );
1475         return wxNullImage;
1476     }
1477
1478     /*
1479     GdkImage *gdk_image_mask = (GdkImage*) NULL;
1480     if (GetMask())
1481     {
1482     gdk_image_mask = gdk_image_get( GetMask()->GetBitmap(),
1483     0, 0,
1484     GetWidth(), GetHeight() );
1485
1486       image.SetMaskColour( 16, 16, 16 );  // anything unlikely and dividable
1487       }
1488     */
1489
1490     // Retrieve depth info
1491
1492     XVisualInfo vinfo_template;
1493     XVisualInfo *vi;
1494
1495     vinfo_template.visual = vis;
1496     vinfo_template.visualid = XVisualIDFromVisual( vis );
1497     vinfo_template.depth = bpp;
1498     int nitem = 0;
1499
1500     vi = XGetVisualInfo( dpy, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
1501
1502     wxCHECK_MSG( vi, wxNullImage, wxT("no visual") );
1503
1504     if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15;
1505
1506     XFree( vi );
1507
1508     XColor colors[256];
1509     if (bpp == 8)
1510     {
1511         Colormap cmap = (Colormap)wxTheApp->GetMainColormap( dpy );
1512
1513         for (int i = 0; i < 256; i++) colors[i].pixel = i;
1514         XQueryColors( dpy, cmap, colors, 256 );
1515     }
1516
1517     long pos = 0;
1518     for (int j = 0; j < GetHeight(); j++)
1519     {
1520         for (int i = 0; i < GetWidth(); i++)
1521         {
1522             int pixel = XGetPixel( ximage, i, j );
1523             if (bpp <= 8)
1524             {
1525                 data[pos] = colors[pixel].red >> 8;
1526                 data[pos+1] = colors[pixel].green >> 8;
1527                 data[pos+2] = colors[pixel].blue >> 8;
1528             } else if (bpp == 15)
1529             {
1530                 data[pos] = (pixel >> 7) & 0xf8;
1531                 data[pos+1] = (pixel >> 2) & 0xf8;
1532                 data[pos+2] = (pixel << 3) & 0xf8;
1533             } else if (bpp == 16)
1534             {
1535                 data[pos] = (pixel >> 8) & 0xf8;
1536                 data[pos+1] = (pixel >> 3) & 0xfc;
1537                 data[pos+2] = (pixel << 3) & 0xf8;
1538             } else
1539             {
1540                 data[pos] = (pixel >> 16) & 0xff;
1541                 data[pos+1] = (pixel >> 8) & 0xff;
1542                 data[pos+2] = pixel & 0xff;
1543             }
1544
1545             /*
1546             if (gdk_image_mask)
1547             {
1548             int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j );
1549             if (mask_pixel == 0)
1550             {
1551             data[pos] = 16;
1552             data[pos+1] = 16;
1553             data[pos+2] = 16;
1554             }
1555             }
1556             */
1557
1558             pos += 3;
1559         }
1560     }
1561
1562     XDestroyImage( ximage );
1563     /*
1564     if (gdk_image_mask) gdk_image_destroy( gdk_image_mask );
1565     */
1566
1567     return image;
1568 }