src/x11/bitmap.cpp

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