src/x11/bitmap.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/x11/bitmap.cpp
   3 // Purpose:     wxBitmap
   4 // Author:      Julian Smart, Robert Roebling
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart, Robert Roebling
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // for compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #include "wx/bitmap.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/log.h"
  19     #include "wx/app.h"
  20     #include "wx/dcmemory.h"
  21     #include "wx/icon.h"
  22     #include "wx/math.h"
  23     #include "wx/image.h"
  24 #endif
  25
  26 #include "wx/x11/private.h"
  27
  28 /* No point in using libXPM for NanoX */
  29 #if wxUSE_NANOX
  30 #undef wxHAVE_LIB_XPM
  31 #define wxHAVE_LIB_XPM 0
  32
  33 // Copy from the drawable to the wxImage
  34 bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image);
  35 #endif
  36
  37 #if wxUSE_XPM
  38 #if wxHAVE_LIB_XPM
  39 #include <X11/xpm.h>
  40 #else
  41 #include "wx/xpmdecod.h"
  42 #include "wx/wfstream.h"
  43 #endif
  44 #endif
  45
  46 //-----------------------------------------------------------------------------
  47 // wxMask
  48 //-----------------------------------------------------------------------------
  49
  50 IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject)
  51
  52 wxMask::wxMask()
  53 {
  54     m_bitmap = NULL;
  55     m_display = NULL;
  56 }
  57
  58 wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
  59 {
  60     m_bitmap = NULL;
  61     Create( bitmap, colour );
  62 }
  63
  64 wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
  65 {
  66     m_bitmap = NULL;
  67     Create( bitmap, paletteIndex );
  68 }
  69
  70 wxMask::wxMask( const wxBitmap& bitmap )
  71 {
  72     m_bitmap = NULL;
  73     Create( bitmap );
  74 }
  75
  76 wxMask::~wxMask()
  77 {
  78     if (m_bitmap)
  79         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
  80 }
  81
  82 bool wxMask::Create( const wxBitmap& bitmap,
  83                      const wxColour& colour )
  84 {
  85 #if !wxUSE_NANOX
  86     if (m_bitmap)
  87     {
  88         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
  89         m_bitmap = NULL;
  90     }
  91
  92     m_display = bitmap.GetDisplay();
  93
  94     wxImage image = bitmap.ConvertToImage();
  95     if (!image.Ok()) return false;
  96
  97     m_display = bitmap.GetDisplay();
  98
  99     Display *xdisplay = (Display*) m_display;
 100     int xscreen = DefaultScreen( xdisplay );
 101     Window xroot = RootWindow( xdisplay, xscreen );
 102
 103     m_bitmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, image.GetWidth(), image.GetHeight(), 1 );
 104     GC gc = XCreateGC( xdisplay, (Pixmap) m_bitmap, 0, NULL );
 105
 106     XSetForeground( xdisplay, gc, WhitePixel(xdisplay,xscreen) );
 107     XSetFillStyle( xdisplay, gc, FillSolid );
 108     XFillRectangle( xdisplay, (Pixmap) m_bitmap, gc, 0, 0, image.GetWidth(), image.GetHeight() );
 109
 110     unsigned char *data = image.GetData();
 111     int index = 0;
 112
 113     unsigned char red = colour.Red();
 114     unsigned char green = colour.Green();
 115     unsigned char blue = colour.Blue();
 116
 117     int bpp = wxTheApp->GetVisualInfo(m_display)->m_visualDepth;
 118
 119     if (bpp == 15)
 120     {
 121         red &= 0xf8;
 122         green &= 0xf8;
 123         blue &= 0xf8;
 124     } else
 125     if (bpp == 16)
 126     {
 127         red &= 0xf8;
 128         green &= 0xfc;
 129         blue &= 0xf8;
 130     } else
 131     if (bpp == 12)
 132     {
 133         red &= 0xf0;
 134         green &= 0xf0;
 135         blue &= 0xf0;
 136     }
 137
 138     XSetForeground( xdisplay, gc, BlackPixel(xdisplay,xscreen) );
 139
 140     int width = image.GetWidth();
 141     int height = image.GetHeight();
 142     for (int j = 0; j < height; j++)
 143     {
 144         int start_x = -1;
 145         int i;
 146         for (i = 0; i < width; i++)
 147         {
 148             if ((data[index] == red) &&
 149                 (data[index+1] == green) &&
 150                 (data[index+2] == blue))
 151             {
 152                 if (start_x == -1)
 153                 start_x = i;
 154             }
 155             else
 156             {
 157                 if (start_x != -1)
 158                 {
 159                     XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i-1, j );
 160                     start_x = -1;
 161                 }
 162             }
 163             index += 3;
 164         }
 165         if (start_x != -1)
 166             XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i, j );
 167     }
 168
 169     XFreeGC( xdisplay, gc );
 170
 171     return true;
 172 #else
 173     return false;
 174 #endif
 175     // wxUSE_NANOX
 176 }
 177
 178 bool wxMask::Create( const wxBitmap& bitmap, int paletteIndex )
 179 {
 180     unsigned char r,g,b;
 181     wxPalette *pal = bitmap.GetPalette();
 182
 183     wxCHECK_MSG( pal, false, wxT("Cannot create mask from bitmap without palette") );
 184
 185     pal->GetRGB(paletteIndex, &r, &g, &b);
 186
 187     return Create(bitmap, wxColour(r, g, b));
 188 }
 189
 190 bool wxMask::Create( const wxBitmap& bitmap )
 191 {
 192 #if !wxUSE_NANOX
 193     if (m_bitmap)
 194     {
 195         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
 196         m_bitmap = NULL;
 197     }
 198
 199     if (!bitmap.Ok()) return false;
 200
 201     wxCHECK_MSG( bitmap.GetBitmap(), false, wxT("Cannot create mask from colour bitmap") );
 202
 203     m_display = bitmap.GetDisplay();
 204
 205     int xscreen = DefaultScreen( (Display*) m_display );
 206     Window xroot = RootWindow( (Display*) m_display, xscreen );
 207
 208     m_bitmap = (WXPixmap) XCreatePixmap( (Display*) m_display, xroot, bitmap.GetWidth(), bitmap.GetHeight(), 1 );
 209
 210     if (!m_bitmap) return false;
 211
 212     GC gc = XCreateGC( (Display*) m_display, (Pixmap) m_bitmap, 0, NULL );
 213
 214     XCopyPlane( (Display*) m_display, (Pixmap) bitmap.GetBitmap(), (Pixmap) m_bitmap,
 215        gc, 0, 0, bitmap.GetWidth(), bitmap.GetHeight(), 0, 0, 1 );
 216
 217     XFreeGC( (Display*) m_display, gc );
 218
 219     return true;
 220 #else
 221     return false;
 222 #endif
 223     // wxUSE_NANOX
 224 }
 225
 226 //-----------------------------------------------------------------------------
 227 // wxBitmap
 228 //-----------------------------------------------------------------------------
 229
 230 class wxBitmapRefData: public wxObjectRefData
 231 {
 232 public:
 233     wxBitmapRefData();
 234     virtual ~wxBitmapRefData();
 235
 236     WXPixmap        m_pixmap;
 237     WXPixmap        m_bitmap;
 238     WXDisplay      *m_display;
 239     wxMask         *m_mask;
 240     int             m_width;
 241     int             m_height;
 242     int             m_bpp;
 243     wxPalette      *m_palette;
 244 };
 245
 246 wxBitmapRefData::wxBitmapRefData()
 247 {
 248     m_pixmap = NULL;
 249     m_bitmap = NULL;
 250     m_display = NULL;
 251     m_mask = (wxMask *) NULL;
 252     m_width = 0;
 253     m_height = 0;
 254     m_bpp = 0;
 255     m_palette = (wxPalette *) NULL;
 256 }
 257
 258 wxBitmapRefData::~wxBitmapRefData()
 259 {
 260     if (m_pixmap) XFreePixmap( (Display*) m_display, (Pixmap) m_pixmap );
 261     if (m_bitmap) XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
 262     if (m_mask) delete m_mask;
 263     if (m_palette) delete m_palette;
 264 }
 265
 266 //-----------------------------------------------------------------------------
 267
 268 // helper function
 269
 270 static WXPixmap wxGetSubPixmap( WXDisplay* xdisplay, WXPixmap xpixmap,
 271                                 int x, int y, int width, int height,
 272                                 int depth )
 273 {
 274     Display * const dpy = (Display *)xdisplay;
 275
 276     int xscreen = DefaultScreen( dpy );
 277     Window xroot = RootWindow( dpy, xscreen );
 278     Visual* xvisual = DefaultVisual( dpy, xscreen );
 279
 280     XImage* ximage = XCreateImage( dpy, xvisual, depth,
 281                                    ZPixmap, 0, 0, width, height, 32, 0 );
 282     ximage->data = (char*)malloc( ximage->bytes_per_line * ximage->height );
 283     ximage = XGetSubImage( dpy, (Pixmap)xpixmap,
 284                            x, y, width, height,
 285                            AllPlanes, ZPixmap, ximage, 0, 0 );
 286
 287     GC gc = XCreateGC( dpy, (Pixmap)xpixmap, 0, NULL );
 288     Pixmap ret = XCreatePixmap( dpy, xroot,
 289                                 width, height, depth );
 290
 291     XPutImage( dpy, ret, gc, ximage,
 292                0, 0, 0, 0, width, height );
 293     XDestroyImage( ximage );
 294     XFreeGC( dpy, gc );
 295
 296     return (WXPixmap)ret;
 297 }
 298
 299 #define M_BMPDATA ((wxBitmapRefData *)m_refData)
 300
 301 IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
 302
 303 wxBitmap::wxBitmap()
 304 {
 305 }
 306
 307 wxBitmap::wxBitmap( int width, int height, int depth )
 308 {
 309     Create( width, height, depth );
 310 }
 311
 312 bool wxBitmap::Create( int width, int height, int depth )
 313 {
 314     UnRef();
 315
 316     wxCHECK_MSG( (width > 0) && (height > 0), false, wxT("invalid bitmap size") );
 317
 318     m_refData = new wxBitmapRefData();
 319
 320     M_BMPDATA->m_display = wxGlobalDisplay();
 321
 322     wxASSERT_MSG( M_BMPDATA->m_display, wxT("No display") );
 323
 324     int xscreen = DefaultScreen( (Display*) M_BMPDATA->m_display );
 325     Window xroot = RootWindow( (Display*) M_BMPDATA->m_display, xscreen );
 326
 327     int bpp = DefaultDepth( (Display*) M_BMPDATA->m_display, xscreen );
 328     if (depth == -1) depth = bpp;
 329
 330     wxCHECK_MSG( (depth == bpp) ||
 331                  (depth == 1), false, wxT("invalid bitmap depth") );
 332
 333     M_BMPDATA->m_mask = (wxMask *) NULL;
 334     M_BMPDATA->m_width = width;
 335     M_BMPDATA->m_height = height;
 336
 337 #if wxUSE_NANOX
 338     M_BMPDATA->m_pixmap = (WXPixmap) GrNewPixmap(width, height, NULL);
 339     M_BMPDATA->m_bpp = bpp;
 340
 341     wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("Bitmap creation failed") );
 342 #else
 343     if (depth == 1)
 344     {
 345         M_BMPDATA->m_bitmap = (WXPixmap) XCreatePixmap( (Display*) M_BMPDATA->m_display, xroot, width, height, 1 );
 346
 347         wxASSERT_MSG( M_BMPDATA->m_bitmap, wxT("Bitmap creation failed") );
 348
 349         M_BMPDATA->m_bpp = 1;
 350     }
 351     else
 352     {
 353         M_BMPDATA->m_pixmap = (WXPixmap) XCreatePixmap( (Display*) M_BMPDATA->m_display, xroot, width, height, depth );
 354
 355         wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("Pixmap creation failed") );
 356
 357         M_BMPDATA->m_bpp = depth;
 358     }
 359 #endif
 360     return Ok();
 361 }
 362
 363 bool wxBitmap::Create(const void* data, wxBitmapType type,
 364                       int width, int height, int depth)
 365 {
 366     UnRef();
 367
 368     wxBitmapHandler *handler = FindHandler(type);
 369
 370     if ( handler == NULL ) {
 371         wxLogWarning(wxT("no data bitmap handler for type %ld defined."),
 372                      (long)type);
 373
 374         return false;
 375     }
 376
 377     return handler->Create(this, data, type, width, height, depth);
 378 }
 379
 380 bool wxBitmap::Create(WXPixmap pixmap)
 381 {
 382     UnRef();
 383     Pixmap xpixmap = (Pixmap)pixmap;
 384     Display* xdisplay = wxGlobalDisplay();
 385     int xscreen = DefaultScreen( xdisplay );
 386     Window xroot = RootWindow( xdisplay, xscreen );
 387
 388     // make a copy of the Pixmap
 389     Window root;
 390     Pixmap copy;
 391     int x, y;
 392     unsigned width, height, border, depth;
 393
 394     XGetGeometry( xdisplay, (Drawable)xpixmap, &root, &x, &y,
 395                   &width, &height, &border, &depth );
 396     copy = XCreatePixmap( xdisplay, xroot, width, height, depth );
 397
 398     GC gc = XCreateGC( xdisplay, copy, 0, NULL );
 399     XCopyArea( xdisplay, xpixmap, copy, gc, 0, 0, width, height, 0, 0 );
 400     XFreeGC( xdisplay, gc );
 401
 402     // fill in ref data
 403     wxBitmapRefData* ref = new wxBitmapRefData();
 404
 405     if( depth == 1 )
 406         ref->m_bitmap = (WXPixmap)copy;
 407     else
 408         ref->m_pixmap = (WXPixmap)copy;
 409
 410     ref->m_display = (WXDisplay*)xdisplay;
 411     ref->m_width = width;
 412     ref->m_height = height;
 413     ref->m_bpp = depth;
 414
 415     m_refData = ref;
 416
 417     return true;
 418 }
 419
 420 wxBitmap::wxBitmap(const char* const* bits)
 421 {
 422     Create(bits, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0);
 423 }
 424
 425 bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
 426 {
 427 #if wxUSE_NANOX
 428     if (!image.Ok())
 429     {
 430         wxASSERT_MSG(image.Ok(), wxT("Invalid wxImage passed to wxBitmap::CreateFromImage."));
 431         return false;
 432     }
 433
 434     int w = image.GetWidth();
 435     int h = image.GetHeight();
 436
 437     if (!Create(w, h, depth))
 438         return false;
 439
 440     // Unfortunately the mask has to be screen-depth since
 441     // 1-bpp bitmaps don't seem to be supported
 442     // TODO: implement transparent drawing, presumably
 443     // by doing several blits as per the Windows
 444     // implementation because Nano-X doesn't support
 445     // XSetClipMask.
 446     // TODO: could perhaps speed this function up
 447     // by making a buffer of pixel values,
 448     // and then calling GrArea to write that to the
 449     // pixmap. See demos/nxroach.c.
 450
 451     bool hasMask = image.HasMask();
 452
 453     GC pixmapGC = GrNewGC();
 454     Pixmap pixmap = (Pixmap) GetPixmap();
 455
 456     GC maskGC = 0;
 457     Pixmap maskPixmap = 0;
 458
 459     unsigned char maskR = 0;
 460     unsigned char maskG = 0;
 461     unsigned char maskB = 0;
 462
 463     if (hasMask)
 464     {
 465         maskR = image.GetMaskRed();
 466         maskG = image.GetMaskGreen();
 467         maskB = image.GetMaskBlue();
 468
 469         maskGC = GrNewGC();
 470         maskPixmap = GrNewPixmap(w, h, 0);
 471         if (!maskPixmap)
 472             hasMask = false;
 473         else
 474         {
 475             wxMask* mask = new wxMask;
 476             mask->SetBitmap((WXPixmap) maskPixmap);
 477             SetMask(mask);
 478         }
 479     }
 480
 481     GR_COLOR lastPixmapColour = 0;
 482     GR_COLOR lastMaskColour = 0;
 483
 484     int i, j;
 485     for (i = 0; i < w; i++)
 486     {
 487         for (j = 0; j < h; j++)
 488         {
 489             unsigned char red = image.GetRed(i, j);
 490             unsigned char green = image.GetGreen(i, j);
 491             unsigned char blue = image.GetBlue(i, j);
 492
 493             GR_COLOR colour = GR_RGB(red, green, blue);
 494
 495             // Efficiency measure
 496             if (colour != lastPixmapColour || (i == 0 && j == 0))
 497             {
 498                 GrSetGCForeground(pixmapGC, colour);
 499                 lastPixmapColour = colour;
 500             }
 501
 502             GrPoint(pixmap, pixmapGC, i, j);
 503
 504             if (hasMask)
 505             {
 506                 // scan the bitmap for the transparent colour and set the corresponding
 507                 // pixels in the mask to BLACK and the rest to WHITE
 508                 if (maskR == red && maskG == green && maskB == blue)
 509                 {
 510                     colour = GR_RGB(0, 0, 0);
 511                 }
 512                 else
 513                 {
 514                     colour = GR_RGB(255, 255, 255);
 515                 }
 516                 if (colour != lastMaskColour || (i == 0 && j == 0))
 517                 {
 518                     GrSetGCForeground(maskGC, colour);
 519                     lastMaskColour = colour;
 520                 }
 521                 GrPoint(maskPixmap, maskGC, i, j);
 522             }
 523         }
 524     }
 525
 526     GrDestroyGC(pixmapGC);
 527     if (hasMask)
 528         GrDestroyGC(maskGC);
 529
 530     return true;
 531 #else
 532     // !wxUSE_NANOX
 533
 534     UnRef();
 535
 536     wxCHECK_MSG( image.Ok(), false, wxT("invalid image") );
 537     wxCHECK_MSG( depth == -1, false, wxT("invalid bitmap depth") );
 538
 539     m_refData = new wxBitmapRefData();
 540
 541     M_BMPDATA->m_display = wxGlobalDisplay();
 542
 543     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 544
 545     int xscreen = DefaultScreen( xdisplay );
 546     Window xroot = RootWindow( xdisplay, xscreen );
 547     Visual* xvisual = DefaultVisual( xdisplay, xscreen );
 548
 549     int bpp = wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_visualDepth;
 550
 551     int width = image.GetWidth();
 552     int height = image.GetHeight();
 553     M_BMPDATA->m_width = width;
 554     M_BMPDATA->m_height = height;
 555
 556     if (depth != 1) depth = bpp;
 557     M_BMPDATA->m_bpp = depth;
 558
 559     if (depth == 1)
 560     {
 561         wxFAIL_MSG( wxT("mono images later") );
 562     }
 563     else
 564     {
 565         // Create image
 566
 567         XImage *data_image = XCreateImage( xdisplay, xvisual, bpp, ZPixmap, 0, 0, width, height, 32, 0 );
 568         data_image->data = (char*) malloc( data_image->bytes_per_line * data_image->height );
 569
 570         if (data_image->data == NULL)
 571         {
 572             wxLogError( wxT("Out of memory.") );  // TODO clean
 573             return false;
 574         }
 575
 576         M_BMPDATA->m_pixmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, depth );
 577
 578         // Create mask
 579
 580         XImage *mask_image = (XImage*) NULL;
 581         if (image.HasMask())
 582         {
 583             mask_image = XCreateImage( xdisplay, xvisual, 1, ZPixmap, 0, 0, width, height, 32, 0 );
 584             mask_image->data = (char*) malloc( mask_image->bytes_per_line * mask_image->height );
 585
 586             if (mask_image->data == NULL)
 587             {
 588                 wxLogError( wxT("Out of memory.") ); // TODO clean
 589                 return false;
 590             }
 591
 592             wxMask *mask = new wxMask();
 593             mask->SetDisplay( xdisplay );
 594             mask->SetBitmap( (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, 1 ) );
 595
 596             SetMask( mask );
 597         }
 598
 599         if (bpp < 8) bpp = 8;
 600
 601         // Render
 602
 603         enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR };
 604         byte_order b_o = RGB;
 605
 606         wxXVisualInfo* vi = wxTheApp->GetVisualInfo(M_BMPDATA->m_display);
 607         unsigned long greenMask = vi->m_visualGreenMask,
 608                       redMask   = vi->m_visualRedMask,
 609                       blueMask  = vi->m_visualBlueMask;
 610
 611         if (bpp > 8)
 612         {
 613             if ((redMask > greenMask) && (greenMask > blueMask))     b_o = RGB;
 614             else if ((redMask > blueMask) && (blueMask > greenMask)) b_o = RBG;
 615             else if ((blueMask > redMask) && (redMask > greenMask))  b_o = BRG;
 616             else if ((blueMask > greenMask) && (greenMask > redMask))b_o = BGR;
 617             else if ((greenMask > redMask) && (redMask > blueMask))  b_o = GRB;
 618             else if ((greenMask > blueMask) && (blueMask > redMask)) b_o = GBR;
 619         }
 620
 621         int r_mask = image.GetMaskRed();
 622         int g_mask = image.GetMaskGreen();
 623         int b_mask = image.GetMaskBlue();
 624
 625         unsigned char* data = image.GetData();
 626         wxASSERT_MSG( data, wxT("No image data") );
 627
 628         unsigned char *colorCube =
 629             wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_colorCube;
 630
 631         bool hasMask = image.HasMask();
 632
 633         int index = 0;
 634         for (int y = 0; y < height; y++)
 635         {
 636             for (int x = 0; x < width; x++)
 637             {
 638                 int r = data[index];
 639                 index++;
 640                 int g = data[index];
 641                 index++;
 642                 int b = data[index];
 643                 index++;
 644
 645                 if (hasMask)
 646                 {
 647                     if ((r == r_mask) && (b == b_mask) && (g == g_mask))
 648                         XPutPixel( mask_image, x, y, 0 );
 649                     else
 650                         XPutPixel( mask_image, x, y, 1 );
 651                 }
 652
 653                 switch (bpp)
 654                 {
 655                     case 8:
 656                     {
 657                         int pixel = 0;
 658                         pixel = colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
 659                         XPutPixel( data_image, x, y, pixel );
 660                         break;
 661                     }
 662                     case 12:  // SGI only
 663                     {
 664                         int pixel = 0;
 665                         switch (b_o)
 666                         {
 667                             case RGB: pixel = ((r & 0xf0) << 4) | (g & 0xf0) | ((b & 0xf0) >> 4); break;
 668                             case RBG: pixel = ((r & 0xf0) << 4) | (b & 0xf0) | ((g & 0xf0) >> 4); break;
 669                             case GRB: pixel = ((g & 0xf0) << 4) | (r & 0xf0) | ((b & 0xf0) >> 4); break;
 670                             case GBR: pixel = ((g & 0xf0) << 4) | (b & 0xf0) | ((r & 0xf0) >> 4); break;
 671                             case BRG: pixel = ((b & 0xf0) << 4) | (r & 0xf0) | ((g & 0xf0) >> 4); break;
 672                             case BGR: pixel = ((b & 0xf0) << 4) | (g & 0xf0) | ((r & 0xf0) >> 4); break;
 673                         }
 674                         XPutPixel( data_image, x, y, pixel );
 675                         break;
 676                     }
 677                     case 15:
 678                     {
 679                         int pixel = 0;
 680                         switch (b_o)
 681                         {
 682                             case RGB: pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
 683                             case RBG: pixel = ((r & 0xf8) << 7) | ((b & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
 684                             case GRB: pixel = ((g & 0xf8) << 7) | ((r & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
 685                             case GBR: pixel = ((g & 0xf8) << 7) | ((b & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
 686                             case BRG: pixel = ((b & 0xf8) << 7) | ((r & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
 687                             case BGR: pixel = ((b & 0xf8) << 7) | ((g & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
 688                         }
 689                         XPutPixel( data_image, x, y, pixel );
 690                         break;
 691                     }
 692                     case 16:
 693                     {
 694                         // I actually don't know if for 16-bit displays, it is alway the green
 695                         // component or the second component which has 6 bits.
 696                         int pixel = 0;
 697                         switch (b_o)
 698                         {
 699                             case RGB: pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
 700                             case RBG: pixel = ((r & 0xf8) << 8) | ((b & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
 701                             case GRB: pixel = ((g & 0xf8) << 8) | ((r & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
 702                             case GBR: pixel = ((g & 0xf8) << 8) | ((b & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
 703                             case BRG: pixel = ((b & 0xf8) << 8) | ((r & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
 704                             case BGR: pixel = ((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
 705                         }
 706                         XPutPixel( data_image, x, y, pixel );
 707                         break;
 708                     }
 709                     case 32:
 710                     case 24:
 711                     {
 712                         int pixel = 0;
 713                         switch (b_o)
 714                         {
 715                             case RGB: pixel = (r << 16) | (g << 8) | b; break;
 716                             case RBG: pixel = (r << 16) | (b << 8) | g; break;
 717                             case BRG: pixel = (b << 16) | (r << 8) | g; break;
 718                             case BGR: pixel = (b << 16) | (g << 8) | r; break;
 719                             case GRB: pixel = (g << 16) | (r << 8) | b; break;
 720                             case GBR: pixel = (g << 16) | (b << 8) | r; break;
 721                         }
 722                         XPutPixel( data_image, x, y, pixel );
 723                     }
 724                     default: break;
 725                 }
 726             } // for
 727         }  // for
 728
 729         // Blit picture
 730
 731         GC gc = XCreateGC( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, 0, NULL );
 732         XPutImage( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, gc, data_image, 0, 0, 0, 0, width, height );
 733         XDestroyImage( data_image );
 734         XFreeGC( xdisplay, gc );
 735
 736         // Blit mask
 737
 738         if (image.HasMask())
 739         {
 740             GC gc = XCreateGC( xdisplay, (Pixmap) GetMask()->GetBitmap(), 0, NULL );
 741             XPutImage( xdisplay, (Pixmap) GetMask()->GetBitmap(), gc, mask_image, 0, 0, 0, 0, width, height );
 742
 743             XDestroyImage( mask_image );
 744             XFreeGC( xdisplay, gc );
 745         }
 746     }
 747
 748     return true;
 749 #endif
 750     // wxUSE_NANOX
 751 }
 752
 753 wxImage wxBitmap::ConvertToImage() const
 754 {
 755     wxImage image;
 756
 757     wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
 758
 759     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 760     wxASSERT_MSG( xdisplay, wxT("No display") );
 761
 762 #if wxUSE_NANOX
 763     //int bpp = DefaultDepth(xdisplay, xscreen);
 764     wxGetImageFromDrawable((Pixmap) GetPixmap(), 0, 0, GetWidth(), GetHeight(), image);
 765     return image;
 766 #else
 767     // !wxUSE_NANOX
 768     int bpp = wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_visualDepth;
 769     XImage *x_image = NULL;
 770     if (GetPixmap())
 771     {
 772         x_image = XGetImage( xdisplay, (Pixmap) GetPixmap(),
 773             0, 0,
 774             GetWidth(), GetHeight(),
 775             AllPlanes, ZPixmap );
 776     } else
 777     if (GetBitmap())
 778     {
 779         x_image = XGetImage( xdisplay, (Pixmap) GetBitmap(),
 780             0, 0,
 781             GetWidth(), GetHeight(),
 782             AllPlanes, ZPixmap );
 783     } else
 784     {
 785         wxFAIL_MSG( wxT("Ill-formed bitmap") );
 786     }
 787
 788     wxCHECK_MSG( x_image, wxNullImage, wxT("couldn't create image") );
 789
 790     image.Create( GetWidth(), GetHeight() );
 791     char unsigned *data = image.GetData();
 792
 793     if (!data)
 794     {
 795         XDestroyImage( x_image );
 796         wxFAIL_MSG( wxT("couldn't create image") );
 797         return wxNullImage;
 798     }
 799
 800     XImage *x_image_mask = NULL;
 801     if (GetMask())
 802     {
 803         x_image_mask = XGetImage( xdisplay, (Pixmap) GetMask()->GetBitmap(),
 804             0, 0,
 805             GetWidth(), GetHeight(),
 806             AllPlanes, ZPixmap );
 807
 808         image.SetMaskColour( 16, 16, 16 );  // anything unlikely and dividable
 809     }
 810
 811     int red_shift_right = 0;
 812     int green_shift_right = 0;
 813     int blue_shift_right = 0;
 814     int red_shift_left = 0;
 815     int green_shift_left = 0;
 816     int blue_shift_left = 0;
 817     bool use_shift = false;
 818
 819     if (GetPixmap())
 820     {
 821         wxXVisualInfo* vi = wxTheApp->GetVisualInfo(M_BMPDATA->m_display);
 822
 823         red_shift_right = vi->m_visualRedShift;
 824         red_shift_left = 8 - vi->m_visualRedPrec;
 825         green_shift_right = vi->m_visualGreenShift;
 826         green_shift_left = 8 - vi->m_visualGreenPrec;
 827         blue_shift_right = vi->m_visualBlueShift;
 828         blue_shift_left = 8 - vi->m_visualBluePrec;
 829
 830         use_shift = (vi->m_visualType == GrayScale) ||
 831                     (vi->m_visualType != PseudoColor);
 832     }
 833
 834     if (GetBitmap())
 835     {
 836         bpp = 1;
 837     }
 838
 839     XColor *colors = (XColor*)wxTheApp->
 840         GetVisualInfo(M_BMPDATA->m_display)->m_visualColormap;
 841
 842     int width = GetWidth();
 843     int height = GetHeight();
 844     long pos = 0;
 845     for (int j = 0; j < height; j++)
 846     {
 847         for (int i = 0; i < width; i++)
 848         {
 849             unsigned long pixel = XGetPixel( x_image, i, j );
 850             if (bpp == 1)
 851             {
 852                 if (pixel == 0)
 853                 {
 854                     data[pos]   = 0;
 855                     data[pos+1] = 0;
 856                     data[pos+2] = 0;
 857                 }
 858                 else
 859                 {
 860                     data[pos]   = 255;
 861                     data[pos+1] = 255;
 862                     data[pos+2] = 255;
 863                 }
 864             }
 865             else if (use_shift)
 866             {
 867                 data[pos] =   (unsigned char)((pixel >> red_shift_right)   << red_shift_left);
 868                 data[pos+1] = (unsigned char)((pixel >> green_shift_right) << green_shift_left);
 869                 data[pos+2] = (unsigned char)((pixel >> blue_shift_right)  << blue_shift_left);
 870             }
 871             else if (colors)
 872             {
 873                 data[pos] =   (unsigned char)(colors[pixel].red   >> 8);
 874                 data[pos+1] = (unsigned char)(colors[pixel].green >> 8);
 875                 data[pos+2] = (unsigned char)(colors[pixel].blue  >> 8);
 876             }
 877             else
 878             {
 879                 wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") );
 880             }
 881
 882             if (x_image_mask)
 883             {
 884                 int mask_pixel = XGetPixel( x_image_mask, i, j );
 885                 if (mask_pixel == 0)
 886                 {
 887                     data[pos] = 16;
 888                     data[pos+1] = 16;
 889                     data[pos+2] = 16;
 890                 }
 891             }
 892
 893             pos += 3;
 894         }
 895     }
 896
 897     XDestroyImage( x_image );
 898     if (x_image_mask) XDestroyImage( x_image_mask );
 899     return image;
 900 #endif
 901     // wxUSE_NANOX
 902 }
 903
 904 wxBitmap::wxBitmap( const wxString &filename, wxBitmapType type )
 905 {
 906     LoadFile( filename, type );
 907 }
 908
 909 wxBitmap::wxBitmap( const char bits[], int width, int height, int depth )
 910 {
 911     m_refData = new wxBitmapRefData;
 912
 913     (void) Create(bits, wxBITMAP_TYPE_XBM_DATA, width, height, depth);
 914 }
 915
 916 wxBitmap::~wxBitmap()
 917 {
 918 }
 919
 920 bool wxBitmap::operator == ( const wxBitmap& bmp ) const
 921 {
 922     return m_refData == bmp.m_refData;
 923 }
 924
 925 bool wxBitmap::operator != ( const wxBitmap& bmp ) const
 926 {
 927     return m_refData != bmp.m_refData;
 928 }
 929
 930 bool wxBitmap::IsOk() const
 931 {
 932     return (m_refData != NULL);
 933 }
 934
 935 int wxBitmap::GetHeight() const
 936 {
 937     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 938
 939     return M_BMPDATA->m_height;
 940 }
 941
 942 int wxBitmap::GetWidth() const
 943 {
 944     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 945
 946     return M_BMPDATA->m_width;
 947 }
 948
 949 int wxBitmap::GetDepth() const
 950 {
 951     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 952
 953     return M_BMPDATA->m_bpp;
 954 }
 955
 956 wxMask *wxBitmap::GetMask() const
 957 {
 958     wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
 959
 960     return M_BMPDATA->m_mask;
 961 }
 962
 963 void wxBitmap::SetMask( wxMask *mask )
 964 {
 965     wxCHECK_RET( Ok(), wxT("invalid bitmap") );
 966
 967     if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
 968
 969     M_BMPDATA->m_mask = mask;
 970 }
 971
 972 bool wxBitmap::CopyFromIcon(const wxIcon& icon)
 973 {
 974     *this = icon;
 975     return true;
 976 }
 977
 978 wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
 979 {
 980     wxCHECK_MSG( Ok() &&
 981                  (rect.x >= 0) && (rect.y >= 0) &&
 982                  (rect.x+rect.width  <= M_BMPDATA->m_width ) &&
 983                  (rect.y+rect.height <= M_BMPDATA->m_height),
 984                  wxNullBitmap, wxT("invalid bitmap or bitmap region") );
 985
 986     wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
 987     wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
 988
 989     if( GetMask() )
 990     {
 991         wxMask* mask = new wxMask();
 992         mask->SetDisplay( GetMask()->GetDisplay() );
 993         mask->SetBitmap( wxGetSubPixmap( GetMask()->GetDisplay(),
 994                                          GetMask()->GetBitmap(),
 995                                          rect.x, rect.y,
 996                                          rect.width, rect.height,
 997                                          1 ) );
 998
 999         ret.SetMask( mask );
1000     }
1001
1002     if( GetPixmap() )
1003     {
1004         ret.SetPixmap( wxGetSubPixmap( GetDisplay(),
1005                                        GetPixmap(),
1006                                        rect.x, rect.y,
1007                                        rect.width, rect.height,
1008                                        M_BMPDATA->m_bpp ) );
1009     }
1010
1011     if( GetBitmap() )
1012     {
1013         ret.SetBitmap( wxGetSubPixmap( GetDisplay(),
1014                                        GetBitmap(),
1015                                        rect.x, rect.y,
1016                                        rect.width, rect.height,
1017                                        1 ) );
1018     }
1019
1020     return ret;
1021 }
1022
1023 bool wxBitmap::SaveFile( const wxString &name, wxBitmapType type,
1024                          const wxPalette *palette ) const
1025 {
1026     wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") );
1027
1028     wxBitmapHandler *handler = FindHandler(type);
1029
1030     // Try to save the bitmap via wxImage handlers:
1031     if (handler == NULL)
1032     {
1033         wxImage image(this->ConvertToImage());
1034         if (image.Ok()) return image.SaveFile( name, type );
1035
1036         return false;
1037     }
1038
1039     return handler->SaveFile(this, name, type, palette);
1040 }
1041
1042 bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type )
1043 {
1044     UnRef();
1045
1046     if (!wxFileExists(name)) return false;
1047
1048     wxBitmapHandler *handler = FindHandler(type);
1049
1050     if (handler == NULL)
1051     {
1052         wxImage image;
1053         if (!image.LoadFile( name, type ))
1054             return false;
1055
1056         if (image.Ok())
1057         {
1058             *this = wxBitmap(image);
1059             return true;
1060         }
1061         else return false;
1062     }
1063
1064     return handler->LoadFile(this, name, type, -1, -1);
1065 }
1066
1067 void wxBitmap::SetPalette(const wxPalette& palette)
1068 {
1069     wxCHECK_RET(Ok(), wxT("invalid bitmap"));
1070     wxCHECK_RET(GetDepth() > 1 && GetDepth() <= 8,
1071                 wxT("cannot set palette for bitmap of this depth"));
1072
1073     delete M_BMPDATA->m_palette;
1074     M_BMPDATA->m_palette = NULL;
1075
1076     if (!palette.Ok()) return;
1077
1078     M_BMPDATA->m_palette = new wxPalette(palette);
1079 }
1080
1081 wxPalette *wxBitmap::GetPalette() const
1082 {
1083     if (!Ok()) return (wxPalette *) NULL;
1084
1085     return M_BMPDATA->m_palette;
1086 }
1087
1088 void wxBitmap::SetHeight( int height )
1089 {
1090     if (!m_refData) m_refData = new wxBitmapRefData();
1091
1092     M_BMPDATA->m_height = height;
1093 }
1094
1095 void wxBitmap::SetWidth( int width )
1096 {
1097     if (!m_refData) m_refData = new wxBitmapRefData();
1098
1099     M_BMPDATA->m_width = width;
1100 }
1101
1102 void wxBitmap::SetDepth( int depth )
1103 {
1104     if (!m_refData) m_refData = new wxBitmapRefData();
1105
1106     M_BMPDATA->m_bpp = depth;
1107 }
1108
1109 void wxBitmap::SetPixmap( WXPixmap pixmap )
1110 {
1111     if (!m_refData) m_refData = new wxBitmapRefData();
1112
1113     M_BMPDATA->m_pixmap = pixmap;
1114 }
1115
1116 void wxBitmap::SetBitmap( WXPixmap bitmap )
1117 {
1118     if (!m_refData) m_refData = new wxBitmapRefData();
1119
1120     M_BMPDATA->m_bitmap = bitmap;
1121 }
1122
1123 WXPixmap wxBitmap::GetPixmap() const
1124 {
1125     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1126
1127     return M_BMPDATA->m_pixmap;
1128 }
1129
1130 WXPixmap wxBitmap::GetBitmap() const
1131 {
1132     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1133
1134     return M_BMPDATA->m_bitmap;
1135 }
1136
1137 WXPixmap wxBitmap::GetDrawable() const
1138 {
1139     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1140
1141     return M_BMPDATA->m_bpp == 1 ? M_BMPDATA->m_bitmap : M_BMPDATA->m_pixmap;
1142 }
1143
1144 WXDisplay *wxBitmap::GetDisplay() const
1145 {
1146     wxCHECK_MSG( Ok(), (WXDisplay*) NULL, wxT("invalid bitmap") );
1147
1148     return M_BMPDATA->m_display;
1149 }
1150
1151 #if wxUSE_NANOX
1152 // Copy from the drawable to the wxImage
1153 bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image)
1154 {
1155     GR_SCREEN_INFO sinfo;
1156     int x, y;
1157     GR_PIXELVAL *pixels;
1158     GR_PALETTE* palette = NULL;
1159     unsigned char rgb[3], *pp;
1160
1161     GrGetScreenInfo(&sinfo);
1162
1163     if (sinfo.pixtype == MWPF_PALETTE) {
1164         if(!(palette = (GR_PALETTE*) malloc(sizeof(GR_PALETTE)))) {
1165             return false;
1166         }
1167         GrGetSystemPalette(palette);
1168     }
1169
1170     if(!(pixels = (GR_PIXELVAL*) malloc(sizeof(GR_PIXELVAL) * width * height)))
1171     {
1172         return false;
1173     }
1174
1175     image.Create(width, height);
1176
1177     GrReadArea(drawable, srcX, srcY, width, height,
1178             pixels);
1179
1180
1181     for(x = 0; x < sinfo.cols; x++) {
1182
1183         pp = (unsigned char *)pixels +
1184             ((x + (y * sinfo.cols)) *
1185              sizeof(GR_PIXELVAL));
1186
1187         switch(sinfo.pixtype) {
1188             /* FIXME: These may need modifying on big endian. */
1189             case MWPF_TRUECOLOR0888:
1190             case MWPF_TRUECOLOR888:
1191                 rgb[0] = pp[2];
1192                 rgb[1] = pp[1];
1193                 rgb[2] = pp[0];
1194                 break;
1195             case MWPF_PALETTE:
1196                 rgb[0] = palette->palette[pp[0]].r;
1197                 rgb[1] = palette->palette[pp[0]].g;
1198                 rgb[2] = palette->palette[pp[0]].b;
1199                 break;
1200             case MWPF_TRUECOLOR565:
1201                 rgb[0] = pp[1] & 0xf8;
1202                 rgb[1] = ((pp[1] & 0x07) << 5) |
1203                     ((pp[0] & 0xe0) >> 3);
1204                 rgb[2] = (pp[0] & 0x1f) << 3;
1205                 break;
1206             case MWPF_TRUECOLOR555:
1207                 rgb[0] = (pp[1] & 0x7c) << 1;
1208                 rgb[1] = ((pp[1] & 0x03) << 6) |
1209                     ((pp[0] & 0xe0) >> 2);
1210                 rgb[2] = (pp[0] & 0x1f) << 3;
1211                 break;
1212             case MWPF_TRUECOLOR332:
1213                 rgb[0] = pp[0] & 0xe0;
1214                 rgb[1] = (pp[0] & 0x1c) << 3;
1215                 rgb[2] = (pp[0] & 0x03) << 6;
1216                 break;
1217             default:
1218                 fprintf(stderr, "Unsupported pixel "
1219                         "format\n");
1220                 return 1;
1221         }
1222
1223         image.SetRGB(x, y, rgb[0], rgb[1], rgb[2]);
1224
1225     }
1226
1227     free(pixels);
1228     if(palette) free(palette);
1229
1230     return true;
1231 }
1232
1233 #if 0
1234 int GrGetPixelColor(GR_SCREEN_INFO* sinfo, GR_PALETTE* palette, GR_PIXELVAL pixel,
1235     unsigned char* red, unsigned char* green, unsigned char* blue)
1236 {
1237     unsigned char rgb[3], *pp;
1238
1239     pp = (unsigned char*) & pixel ;
1240
1241     switch (sinfo.pixtype)
1242     {
1243         /* FIXME: These may need modifying on big endian. */
1244         case MWPF_TRUECOLOR0888:
1245         case MWPF_TRUECOLOR888:
1246             rgb[0] = pp[2];
1247             rgb[1] = pp[1];
1248             rgb[2] = pp[0];
1249             break;
1250         case MWPF_PALETTE:
1251             rgb[0] = palette->palette[pp[0]].r;
1252             rgb[1] = palette->palette[pp[0]].g;
1253             rgb[2] = palette->palette[pp[0]].b;
1254             break;
1255         case MWPF_TRUECOLOR565:
1256             rgb[0] = pp[1] & 0xf8;
1257             rgb[1] = ((pp[1] & 0x07) << 5) |
1258                 ((pp[0] & 0xe0) >> 3);
1259             rgb[2] = (pp[0] & 0x1f) << 3;
1260             break;
1261         case MWPF_TRUECOLOR555:
1262             rgb[0] = (pp[1] & 0x7c) << 1;
1263             rgb[1] = ((pp[1] & 0x03) << 6) |
1264                 ((pp[0] & 0xe0) >> 2);
1265             rgb[2] = (pp[0] & 0x1f) << 3;
1266             break;
1267         case MWPF_TRUECOLOR332:
1268             rgb[0] = pp[0] & 0xe0;
1269             rgb[1] = (pp[0] & 0x1c) << 3;
1270             rgb[2] = (pp[0] & 0x03) << 6;
1271             break;
1272         default:
1273             fprintf(stderr, "Unsupported pixel format\n");
1274             return 0;
1275     }
1276
1277
1278     *(red) = rgb[0];
1279     *(green) = rgb[1];
1280     *(blue) = rgb[2];
1281     return 1;
1282 }
1283 #endif
1284
1285 #endif
1286   // wxUSE_NANOX
1287
1288 // ============================================================================
1289 // Bitmap handlers
1290 // ============================================================================
1291
1292 IMPLEMENT_ABSTRACT_CLASS(wxBitmapHandler, wxBitmapHandlerBase)
1293
1294 #define M_BMPHANDLERDATA ((wxBitmapRefData *)bitmap->GetRefData())
1295
1296 #if wxUSE_XPM
1297
1298 #if wxHAVE_LIB_XPM || wxUSE_STREAMS
1299
1300 // ----------------------------------------------------------------------------
1301 // wxXPMFileHandler
1302 // ----------------------------------------------------------------------------
1303
1304 class wxXPMFileHandler : public wxBitmapHandler
1305 {
1306     DECLARE_DYNAMIC_CLASS(wxXPMFileHandler)
1307 public:
1308     wxXPMFileHandler()
1309     {
1310         SetName( wxT("XPM file") );
1311         SetExtension( wxT("xpm") );
1312         SetType( wxBITMAP_TYPE_XPM );
1313     };
1314
1315     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1316                           int desiredWidth, int desiredHeight);
1317
1318     virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name,
1319                           int type, const wxPalette *palette = NULL);
1320
1321     virtual bool Create(wxBitmap *WXUNUSED(bitmap), const void* WXUNUSED(data), long WXUNUSED(flags),
1322                         int WXUNUSED(width), int WXUNUSED(height), int WXUNUSED(depth) = 1)
1323         { return false; }
1324 };
1325
1326 IMPLEMENT_DYNAMIC_CLASS(wxXPMFileHandler, wxBitmapHandler)
1327
1328 bool wxXPMFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name,
1329                                 long WXUNUSED(flags), int WXUNUSED(desiredWidth),
1330                                 int WXUNUSED(desiredHeight))
1331 {
1332 #if wxHAVE_LIB_XPM
1333     if (!bitmap->GetRefData())
1334         bitmap->SetRefData( new wxBitmapRefData() );
1335
1336     M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1337
1338     Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1339
1340     int xscreen = DefaultScreen( xdisplay );
1341     Window xroot = RootWindow( xdisplay, xscreen );
1342
1343     int bpp = DefaultDepth( xdisplay, xscreen );
1344
1345     XpmAttributes xpmAttr;
1346     xpmAttr.valuemask = XpmReturnInfos;    // nothing yet, but get infos back
1347
1348     Pixmap pixmap;
1349     Pixmap mask = 0;
1350
1351     int ErrorStatus = XpmReadFileToPixmap( xdisplay, xroot,
1352                                            (char*) name.c_str(),
1353                                            &pixmap, &mask, &xpmAttr);
1354
1355     if (ErrorStatus == XpmSuccess)
1356     {
1357         M_BMPHANDLERDATA->m_width = xpmAttr.width;
1358         M_BMPHANDLERDATA->m_height = xpmAttr.height;
1359
1360         M_BMPHANDLERDATA->m_bpp = bpp;  // mono as well?
1361
1362         XpmFreeAttributes(&xpmAttr);
1363
1364         M_BMPHANDLERDATA->m_bitmap = (WXPixmap) pixmap;
1365
1366         if (mask)
1367         {
1368             M_BMPHANDLERDATA->m_mask = new wxMask;
1369             M_BMPHANDLERDATA->m_mask->SetBitmap( (WXPixmap) mask );
1370             M_BMPHANDLERDATA->m_mask->SetDisplay( xdisplay );
1371         }
1372     }
1373     else
1374     {
1375         UnRef();
1376
1377         return false;
1378     }
1379
1380     return true;
1381 #elif wxUSE_STREAMS
1382     wxXPMDecoder decoder;
1383     wxFileInputStream stream(name);
1384     if (stream.Ok())
1385     {
1386         wxImage image(decoder.ReadFile(stream));
1387         return image.Ok() && bitmap->CreateFromImage(image);
1388     }
1389
1390     return false;
1391 #else // !wxHAVE_LIB_XPM && !wxUSE_STREAMS
1392     return false;
1393 #endif // wxHAVE_LIB_XPM / wxUSE_STREAMS
1394 }
1395
1396 bool wxXPMFileHandler::SaveFile(const wxBitmap *bitmap, const wxString& name,
1397                                 int type,
1398                                 const wxPalette *WXUNUSED(palette))
1399 {
1400     wxImage image(bitmap->ConvertToImage());
1401     if (image.Ok()) return image.SaveFile( name, (wxBitmapType)type );
1402
1403     return false;
1404 }
1405
1406 #endif // wxHAVE_LIB_XPM || wxUSE_STREAMS
1407
1408 // ----------------------------------------------------------------------------
1409 // wxXPMDataHandler
1410 // ----------------------------------------------------------------------------
1411
1412 class wxXPMDataHandler : public wxBitmapHandler
1413 {
1414     DECLARE_DYNAMIC_CLASS(wxXPMDataHandler)
1415 public:
1416     wxXPMDataHandler()
1417     {
1418         SetName( wxT("XPM data") );
1419         SetExtension( wxT("xpm") );
1420         SetType( wxBITMAP_TYPE_XPM_DATA );
1421     };
1422
1423     virtual bool LoadFile(wxBitmap *WXUNUSED(bitmap),
1424                           const wxString& WXUNUSED(name),
1425                           long WXUNUSED(flags),
1426                           int WXUNUSED(desiredWidth),
1427                           int WXUNUSED(desiredHeight))
1428         { return false; }
1429
1430     virtual bool SaveFile(const wxBitmap *WXUNUSED(bitmap),
1431                           const wxString& WXUNUSED(name),
1432                           int WXUNUSED(type),
1433                           const wxPalette *WXUNUSED(palette) = NULL)
1434         { return false; }
1435
1436     virtual bool Create(wxBitmap *bitmap, const void* data, long flags,
1437                         int width, int height, int depth = 1);
1438 };
1439
1440 IMPLEMENT_DYNAMIC_CLASS(wxXPMDataHandler, wxBitmapHandler)
1441
1442 bool wxXPMDataHandler::Create(wxBitmap *bitmap, const void* bits,
1443                               long WXUNUSED(flags),
1444                               int WXUNUSED(width), int WXUNUSED(height), int WXUNUSED(depth))
1445 {
1446 #if wxHAVE_LIB_XPM
1447     wxCHECK_MSG( bits != NULL, false, wxT("invalid bitmap data") );
1448
1449     if (!bitmap->GetRefData())
1450         bitmap->SetRefData( new wxBitmapRefData() );
1451
1452     M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1453
1454     Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1455
1456     int xscreen = DefaultScreen( xdisplay );
1457     Window xroot = RootWindow( xdisplay, xscreen );
1458
1459     int bpp = DefaultDepth( xdisplay, xscreen );
1460
1461     XpmAttributes xpmAttr;
1462     xpmAttr.valuemask = XpmReturnInfos;    // nothing yet, but get infos back
1463
1464     Pixmap pixmap = 0;
1465     Pixmap mask = 0;
1466
1467     int ErrorStatus = XpmCreatePixmapFromData( xdisplay, xroot, (char**) bits,
1468                                                &pixmap, &mask, &xpmAttr );
1469
1470     if (ErrorStatus == XpmSuccess)
1471     {
1472         M_BMPHANDLERDATA->m_width = xpmAttr.width;
1473         M_BMPHANDLERDATA->m_height = xpmAttr.height;
1474
1475         M_BMPHANDLERDATA->m_bpp = bpp;  // mono as well?
1476
1477 #if __WXDEBUG__
1478         unsigned int depthRet;
1479         int xRet, yRet;
1480         unsigned int widthRet, heightRet, borderWidthRet;
1481         XGetGeometry( xdisplay, pixmap, &xroot, &xRet, &yRet,
1482             &widthRet, &heightRet, &borderWidthRet, &depthRet);
1483
1484         wxASSERT_MSG( bpp == (int)depthRet, wxT("colour depth mismatch") );
1485 #endif
1486
1487         XpmFreeAttributes(&xpmAttr);
1488
1489         M_BMPHANDLERDATA->m_pixmap = (WXPixmap) pixmap;
1490
1491         if (mask)
1492         {
1493             M_BMPHANDLERDATA->m_mask = new wxMask;
1494             M_BMPHANDLERDATA->m_mask->SetBitmap( (WXPixmap) mask );
1495             M_BMPHANDLERDATA->m_mask->SetDisplay( xdisplay );
1496         }
1497         return true;
1498     }
1499     else
1500     {
1501         bitmap->UnRef();
1502
1503         return false;
1504     }
1505 #else // !wxHAVE_LIB_XPM
1506     wxXPMDecoder decoder;
1507     wxImage image(decoder.ReadData((const char **)bits));
1508     return image.Ok() && bitmap->CreateFromImage(image);
1509 #endif // wxHAVE_LIB_XPM/!wxHAVE_LIB_XPM
1510 }
1511
1512 #endif // wxUSE_XPM
1513
1514 // ----------------------------------------------------------------------------
1515 // wxXBMDataHandler
1516 // ----------------------------------------------------------------------------
1517
1518 class WXDLLEXPORT wxXBMDataHandler: public wxBitmapHandler
1519 {
1520     DECLARE_DYNAMIC_CLASS(wxXBMDataHandler)
1521 public:
1522     inline wxXBMDataHandler()
1523     {
1524         SetName( wxT("XBM data") );
1525         SetExtension( wxT("xbm") );
1526         SetType( wxBITMAP_TYPE_XBM_DATA );
1527     };
1528
1529     virtual bool LoadFile(wxBitmap *WXUNUSED(bitmap),
1530                           const wxString& WXUNUSED(name),
1531                           long WXUNUSED(flags),
1532                           int WXUNUSED(desiredWidth),
1533                           int WXUNUSED(desiredHeight))
1534         { return false; }
1535
1536     virtual bool SaveFile(const wxBitmap *WXUNUSED(bitmap),
1537                           const wxString& WXUNUSED(name),
1538                           int WXUNUSED(type),
1539                           const wxPalette *WXUNUSED(palette) = NULL)
1540         { return false; }
1541
1542     virtual bool Create(wxBitmap *bitmap, const void* data, long flags,
1543                         int width, int height, int depth = 1);
1544 };
1545
1546 IMPLEMENT_DYNAMIC_CLASS(wxXBMDataHandler, wxBitmapHandler)
1547
1548 bool wxXBMDataHandler::Create( wxBitmap *bitmap, const void* bits,
1549                                long WXUNUSED(flags),
1550                                int width, int height, int WXUNUSED(depth))
1551 {
1552 #if !wxUSE_NANOX
1553     if (!bitmap->GetRefData())
1554         bitmap->SetRefData( new wxBitmapRefData() );
1555
1556     M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1557
1558     Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1559
1560     int xscreen = DefaultScreen( xdisplay );
1561     Window xroot = RootWindow( xdisplay, xscreen );
1562
1563     M_BMPHANDLERDATA->m_mask = (wxMask *) NULL;
1564     M_BMPHANDLERDATA->m_bitmap =
1565         (WXPixmap) XCreateBitmapFromData( xdisplay, xroot,
1566                                           (char *) bits, width, height );
1567     M_BMPHANDLERDATA->m_width = width;
1568     M_BMPHANDLERDATA->m_height = height;
1569     M_BMPHANDLERDATA->m_bpp = 1;
1570
1571     return true;
1572 #else
1573    wxCHECK_MSG( M_BMPHANDLERDATA->m_bitmap, false,
1574                  wxT("couldn't create bitmap") );
1575 #endif
1576 }
1577
1578 void wxBitmap::InitStandardHandlers()
1579 {
1580     AddHandler(new wxXBMDataHandler);
1581 #if wxUSE_XPM
1582 #if wxHAVE_LIB_XPM || wxUSE_STREAMS
1583     AddHandler(new wxXPMFileHandler);
1584 #endif
1585     AddHandler(new wxXPMDataHandler);
1586 #endif
1587 }