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->GetVisualInfo(m_display)->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->GetVisualInfo(M_BMPDATA->m_display)->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         wxXVisualInfo* vi = wxTheApp->GetVisualInfo(M_BMPDATA->m_display);
 567         unsigned long greenMask = vi->m_visualGreenMask,
 568                       redMask   = vi->m_visualRedMask,
 569                       blueMask  = vi->m_visualBlueMask;
 570
 571         if (bpp > 8)
 572         {
 573             if ((redMask > greenMask) && (greenMask > blueMask))     b_o = RGB;
 574             else if ((redMask > blueMask) && (blueMask > greenMask)) b_o = RBG;
 575             else if ((blueMask > redMask) && (redMask > greenMask))  b_o = BRG;
 576             else if ((blueMask > greenMask) && (greenMask > redMask))b_o = BGR;
 577             else if ((greenMask > redMask) && (redMask > blueMask))  b_o = GRB;
 578             else if ((greenMask > blueMask) && (blueMask > redMask)) b_o = GBR;
 579         }
 580
 581         int r_mask = image.GetMaskRed();
 582         int g_mask = image.GetMaskGreen();
 583         int b_mask = image.GetMaskBlue();
 584
 585         unsigned char* data = image.GetData();
 586         wxASSERT_MSG( data, "No image data" );
 587
 588         unsigned char *colorCube =
 589             wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_colorCube;
 590
 591         bool hasMask = image.HasMask();
 592
 593         int index = 0;
 594         for (int y = 0; y < height; y++)
 595         {
 596             for (int x = 0; x < width; x++)
 597             {
 598                 int r = data[index];
 599                 index++;
 600                 int g = data[index];
 601                 index++;
 602                 int b = data[index];
 603                 index++;
 604
 605                 if (hasMask)
 606                 {
 607                     if ((r == r_mask) && (b == b_mask) && (g == g_mask))
 608                         XPutPixel( mask_image, x, y, 0 );
 609                     else
 610                         XPutPixel( mask_image, x, y, 1 );
 611                 }
 612
 613                 switch (bpp)
 614                 {
 615                     case 8:
 616                     {
 617                         int pixel = 0;
 618                         pixel = colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
 619                         XPutPixel( data_image, x, y, pixel );
 620                         break;
 621                     }
 622                     case 12:  // SGI only
 623                     {
 624                         int pixel = 0;
 625                         switch (b_o)
 626                         {
 627                             case RGB: pixel = ((r & 0xf0) << 4) | (g & 0xf0) | ((b & 0xf0) >> 4); break;
 628                             case RBG: pixel = ((r & 0xf0) << 4) | (b & 0xf0) | ((g & 0xf0) >> 4); break;
 629                             case GRB: pixel = ((g & 0xf0) << 4) | (r & 0xf0) | ((b & 0xf0) >> 4); break;
 630                             case GBR: pixel = ((g & 0xf0) << 4) | (b & 0xf0) | ((r & 0xf0) >> 4); break;
 631                             case BRG: pixel = ((b & 0xf0) << 4) | (r & 0xf0) | ((g & 0xf0) >> 4); break;
 632                             case BGR: pixel = ((b & 0xf0) << 4) | (g & 0xf0) | ((r & 0xf0) >> 4); break;
 633                         }
 634                         XPutPixel( data_image, x, y, pixel );
 635                         break;
 636                     }
 637                     case 15:
 638                     {
 639                         int pixel = 0;
 640                         switch (b_o)
 641                         {
 642                             case RGB: pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
 643                             case RBG: pixel = ((r & 0xf8) << 7) | ((b & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
 644                             case GRB: pixel = ((g & 0xf8) << 7) | ((r & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
 645                             case GBR: pixel = ((g & 0xf8) << 7) | ((b & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
 646                             case BRG: pixel = ((b & 0xf8) << 7) | ((r & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
 647                             case BGR: pixel = ((b & 0xf8) << 7) | ((g & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
 648                         }
 649                         XPutPixel( data_image, x, y, pixel );
 650                         break;
 651                     }
 652                     case 16:
 653                     {
 654                         // I actually don't know if for 16-bit displays, it is alway the green
 655                         // component or the second component which has 6 bits.
 656                         int pixel = 0;
 657                         switch (b_o)
 658                         {
 659                             case RGB: pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
 660                             case RBG: pixel = ((r & 0xf8) << 8) | ((b & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
 661                             case GRB: pixel = ((g & 0xf8) << 8) | ((r & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
 662                             case GBR: pixel = ((g & 0xf8) << 8) | ((b & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
 663                             case BRG: pixel = ((b & 0xf8) << 8) | ((r & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
 664                             case BGR: pixel = ((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
 665                         }
 666                         XPutPixel( data_image, x, y, pixel );
 667                         break;
 668                     }
 669                     case 32:
 670                     case 24:
 671                     {
 672                         int pixel = 0;
 673                         switch (b_o)
 674                         {
 675                             case RGB: pixel = (r << 16) | (g << 8) | b; break;
 676                             case RBG: pixel = (r << 16) | (b << 8) | g; break;
 677                             case BRG: pixel = (b << 16) | (r << 8) | g; break;
 678                             case BGR: pixel = (b << 16) | (g << 8) | r; break;
 679                             case GRB: pixel = (g << 16) | (r << 8) | b; break;
 680                             case GBR: pixel = (g << 16) | (b << 8) | r; break;
 681                         }
 682                         XPutPixel( data_image, x, y, pixel );
 683                     }
 684                     default: break;
 685                 }
 686             } // for
 687         }  // for
 688
 689         // Blit picture
 690
 691         GC gc = XCreateGC( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, 0, NULL );
 692         XPutImage( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, gc, data_image, 0, 0, 0, 0, width, height );
 693         XDestroyImage( data_image );
 694         XFreeGC( xdisplay, gc );
 695
 696         // Blit mask
 697
 698         if (image.HasMask())
 699         {
 700             GC gc = XCreateGC( xdisplay, (Pixmap) GetMask()->GetBitmap(), 0, NULL );
 701             XPutImage( xdisplay, (Pixmap) GetMask()->GetBitmap(), gc, mask_image, 0, 0, 0, 0, width, height );
 702
 703             XDestroyImage( mask_image );
 704             XFreeGC( xdisplay, gc );
 705         }
 706     }
 707
 708     return TRUE;
 709 #endif
 710     // wxUSE_NANOX
 711 }
 712
 713 wxImage wxBitmap::ConvertToImage() const
 714 {
 715     wxImage image;
 716
 717     wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
 718
 719     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 720     wxASSERT_MSG( xdisplay, wxT("No display") );
 721
 722 #if wxUSE_NANOX
 723     //int bpp = DefaultDepth(xdisplay, xscreen);
 724     wxGetImageFromDrawable((Pixmap) GetPixmap(), 0, 0, GetWidth(), GetHeight(), image);
 725     return image;
 726 #else
 727     // !wxUSE_NANOX
 728     int bpp = wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_visualDepth;
 729     XImage *x_image = NULL;
 730     if (GetPixmap())
 731     {
 732         x_image = XGetImage( xdisplay, (Pixmap) GetPixmap(),
 733             0, 0,
 734             GetWidth(), GetHeight(),
 735             AllPlanes, ZPixmap );
 736     } else
 737     if (GetBitmap())
 738     {
 739         x_image = XGetImage( xdisplay, (Pixmap) GetBitmap(),
 740             0, 0,
 741             GetWidth(), GetHeight(),
 742             AllPlanes, ZPixmap );
 743     } else
 744     {
 745         wxFAIL_MSG( wxT("Ill-formed bitmap") );
 746     }
 747
 748     wxCHECK_MSG( x_image, wxNullImage, wxT("couldn't create image") );
 749
 750     image.Create( GetWidth(), GetHeight() );
 751     char unsigned *data = image.GetData();
 752
 753     if (!data)
 754     {
 755         XDestroyImage( x_image );
 756         wxFAIL_MSG( wxT("couldn't create image") );
 757         return wxNullImage;
 758     }
 759
 760     XImage *x_image_mask = NULL;
 761     if (GetMask())
 762     {
 763         x_image_mask = XGetImage( xdisplay, (Pixmap) GetMask()->GetBitmap(),
 764             0, 0,
 765             GetWidth(), GetHeight(),
 766             AllPlanes, ZPixmap );
 767
 768         image.SetMaskColour( 16, 16, 16 );  // anything unlikely and dividable
 769     }
 770
 771     int red_shift_right = 0;
 772     int green_shift_right = 0;
 773     int blue_shift_right = 0;
 774     int red_shift_left = 0;
 775     int green_shift_left = 0;
 776     int blue_shift_left = 0;
 777     bool use_shift = FALSE;
 778
 779     if (GetPixmap())
 780     {
 781         wxXVisualInfo* vi = wxTheApp->GetVisualInfo(M_BMPDATA->m_display);
 782
 783         red_shift_right = vi->m_visualRedShift;
 784         red_shift_left = 8 - vi->m_visualRedPrec;
 785         green_shift_right = vi->m_visualGreenShift;
 786         green_shift_left = 8 - vi->m_visualGreenPrec;
 787         blue_shift_right = vi->m_visualBlueShift;
 788         blue_shift_left = 8 - vi->m_visualBluePrec;
 789
 790         use_shift = (vi->m_visualType == GrayScale) ||
 791                     (vi->m_visualType != PseudoColor);
 792     }
 793
 794     if (GetBitmap())
 795     {
 796         bpp = 1;
 797     }
 798
 799     XColor *colors = (XColor*)wxTheApp->
 800         GetVisualInfo(M_BMPDATA->m_display)->m_visualColormap;
 801
 802     int width = GetWidth();
 803     int height = GetHeight();
 804     long pos = 0;
 805     for (int j = 0; j < height; j++)
 806     {
 807         for (int i = 0; i < width; i++)
 808         {
 809             unsigned long pixel = XGetPixel( x_image, i, j );
 810             if (bpp == 1)
 811             {
 812                 if (pixel == 0)
 813                 {
 814                     data[pos]   = 0;
 815                     data[pos+1] = 0;
 816                     data[pos+2] = 0;
 817                 }
 818                 else
 819                 {
 820                     data[pos]   = 255;
 821                     data[pos+1] = 255;
 822                     data[pos+2] = 255;
 823                 }
 824             }
 825             else if (use_shift)
 826             {
 827                 data[pos] =   (pixel >> red_shift_right)   << red_shift_left;
 828                 data[pos+1] = (pixel >> green_shift_right) << green_shift_left;
 829                 data[pos+2] = (pixel >> blue_shift_right)  << blue_shift_left;
 830             }
 831             else if (colors)
 832             {
 833                 data[pos] =   colors[pixel].red   >> 8;
 834                 data[pos+1] = colors[pixel].green >> 8;
 835                 data[pos+2] = colors[pixel].blue  >> 8;
 836             }
 837             else
 838             {
 839                 wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") );
 840             }
 841
 842             if (x_image_mask)
 843             {
 844                 int mask_pixel = XGetPixel( x_image_mask, i, j );
 845                 if (mask_pixel == 0)
 846                 {
 847                     data[pos] = 16;
 848                     data[pos+1] = 16;
 849                     data[pos+2] = 16;
 850                 }
 851             }
 852
 853             pos += 3;
 854         }
 855     }
 856
 857     XDestroyImage( x_image );
 858     if (x_image_mask) XDestroyImage( x_image_mask );
 859     return image;
 860 #endif
 861     // wxUSE_NANOX
 862 }
 863
 864 wxBitmap::wxBitmap( const wxBitmap& bmp )
 865 {
 866     Ref( bmp );
 867 }
 868
 869 wxBitmap::wxBitmap( const wxString &filename, wxBitmapType type )
 870 {
 871     LoadFile( filename, type );
 872 }
 873
 874 wxBitmap::wxBitmap( const char bits[], int width, int height, int depth )
 875 {
 876     m_refData = new wxBitmapRefData;
 877
 878     (void) Create((void*) bits, wxBITMAP_TYPE_XBM_DATA, width, height, depth);
 879 }
 880
 881 wxBitmap::~wxBitmap()
 882 {
 883 }
 884
 885 wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
 886 {
 887     if ( m_refData != bmp.m_refData )
 888         Ref( bmp );
 889
 890     return *this;
 891 }
 892
 893 bool wxBitmap::operator == ( const wxBitmap& bmp ) const
 894 {
 895     return m_refData == bmp.m_refData;
 896 }
 897
 898 bool wxBitmap::operator != ( const wxBitmap& bmp ) const
 899 {
 900     return m_refData != bmp.m_refData;
 901 }
 902
 903 bool wxBitmap::Ok() const
 904 {
 905     return (m_refData != NULL);
 906 }
 907
 908 int wxBitmap::GetHeight() const
 909 {
 910     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 911
 912     return M_BMPDATA->m_height;
 913 }
 914
 915 int wxBitmap::GetWidth() const
 916 {
 917     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 918
 919     return M_BMPDATA->m_width;
 920 }
 921
 922 int wxBitmap::GetDepth() const
 923 {
 924     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 925
 926     return M_BMPDATA->m_bpp;
 927 }
 928
 929 wxMask *wxBitmap::GetMask() const
 930 {
 931     wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
 932
 933     return M_BMPDATA->m_mask;
 934 }
 935
 936 void wxBitmap::SetMask( wxMask *mask )
 937 {
 938     wxCHECK_RET( Ok(), wxT("invalid bitmap") );
 939
 940     if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
 941
 942     M_BMPDATA->m_mask = mask;
 943 }
 944
 945 bool wxBitmap::CopyFromIcon(const wxIcon& icon)
 946 {
 947     *this = icon;
 948     return TRUE;
 949 }
 950
 951 wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
 952 {
 953     wxCHECK_MSG( Ok() &&
 954                  (rect.x >= 0) && (rect.y >= 0) &&
 955                  (rect.x+rect.width  <= M_BMPDATA->m_width ) &&
 956                  (rect.y+rect.height <= M_BMPDATA->m_height),
 957                  wxNullBitmap, wxT("invalid bitmap or bitmap region") );
 958
 959     wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
 960     wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
 961
 962     if( GetMask() )
 963     {
 964         wxMask* mask = new wxMask();
 965         mask->SetDisplay( GetMask()->GetDisplay() );
 966         mask->SetBitmap( wxGetSubPixmap( GetMask()->GetDisplay(),
 967                                          GetMask()->GetBitmap(),
 968                                          rect.x, rect.y,
 969                                          rect.width, rect.height,
 970                                          1 ) );
 971
 972         ret.SetMask( mask );
 973     }
 974
 975     if( GetPixmap() )
 976     {
 977         ret.SetPixmap( wxGetSubPixmap( GetDisplay(),
 978                                        GetPixmap(),
 979                                        rect.x, rect.y,
 980                                        rect.width, rect.height,
 981                                        M_BMPDATA->m_bpp ) );
 982     }
 983
 984     if( GetBitmap() )
 985     {
 986         ret.SetBitmap( wxGetSubPixmap( GetDisplay(),
 987                                        GetBitmap(),
 988                                        rect.x, rect.y,
 989                                        rect.width, rect.height,
 990                                        1 ) );
 991     }
 992
 993     return ret;
 994 }
 995
 996 bool wxBitmap::SaveFile( const wxString &name, wxBitmapType type,
 997                          const wxPalette *palette ) const
 998 {
 999     wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") );
1000
1001     wxBitmapHandler *handler = FindHandler(type);
1002
1003     // Try to save the bitmap via wxImage handlers:
1004     if (handler == NULL)
1005     {
1006         wxImage image(this->ConvertToImage());
1007         if (image.Ok()) return image.SaveFile( name, type );
1008
1009         return FALSE;
1010     }
1011
1012     return handler->SaveFile(this, name, type, palette);
1013 }
1014
1015 bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type )
1016 {
1017     UnRef();
1018
1019     if (!wxFileExists(name)) return FALSE;
1020
1021     wxBitmapHandler *handler = FindHandler(type);
1022
1023     if (handler == NULL)
1024     {
1025         wxImage image;
1026         if (!image.LoadFile( name, type ))
1027             return FALSE;
1028
1029         if (image.Ok())
1030         {
1031             *this = wxBitmap(image);
1032             return TRUE;
1033         }
1034         else return FALSE;
1035     }
1036
1037     return handler->LoadFile(this, name, type, -1, -1);
1038 }
1039
1040 void wxBitmap::SetPalette(const wxPalette& palette)
1041 {
1042     wxCHECK_RET(Ok(), wxT("invalid bitmap"));
1043     wxCHECK_RET(GetDepth() > 1 && GetDepth() <= 8,
1044                 wxT("cannot set palette for bitmap of this depth"));
1045
1046     delete M_BMPDATA->m_palette;
1047     M_BMPDATA->m_palette = NULL;
1048
1049     if (!palette.Ok()) return;
1050
1051     M_BMPDATA->m_palette = new wxPalette(palette);
1052 }
1053
1054 wxPalette *wxBitmap::GetPalette() const
1055 {
1056     if (!Ok()) return (wxPalette *) NULL;
1057
1058     return M_BMPDATA->m_palette;
1059 }
1060
1061 void wxBitmap::SetHeight( int height )
1062 {
1063     if (!m_refData) m_refData = new wxBitmapRefData();
1064
1065     M_BMPDATA->m_height = height;
1066 }
1067
1068 void wxBitmap::SetWidth( int width )
1069 {
1070     if (!m_refData) m_refData = new wxBitmapRefData();
1071
1072     M_BMPDATA->m_width = width;
1073 }
1074
1075 void wxBitmap::SetDepth( int depth )
1076 {
1077     if (!m_refData) m_refData = new wxBitmapRefData();
1078
1079     M_BMPDATA->m_bpp = depth;
1080 }
1081
1082 void wxBitmap::SetPixmap( WXPixmap pixmap )
1083 {
1084     if (!m_refData) m_refData = new wxBitmapRefData();
1085
1086     M_BMPDATA->m_pixmap = pixmap;
1087 }
1088
1089 void wxBitmap::SetBitmap( WXPixmap bitmap )
1090 {
1091     if (!m_refData) m_refData = new wxBitmapRefData();
1092
1093     M_BMPDATA->m_bitmap = bitmap;
1094 }
1095
1096 WXPixmap wxBitmap::GetPixmap() const
1097 {
1098     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1099
1100     return M_BMPDATA->m_pixmap;
1101 }
1102
1103 WXPixmap wxBitmap::GetBitmap() const
1104 {
1105     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1106
1107     return M_BMPDATA->m_bitmap;
1108 }
1109
1110 WXPixmap wxBitmap::GetDrawable() const
1111 {
1112     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1113
1114     return M_BMPDATA->m_bpp == 1 ? M_BMPDATA->m_bitmap : M_BMPDATA->m_pixmap;
1115 }
1116
1117 WXDisplay *wxBitmap::GetDisplay() const
1118 {
1119     wxCHECK_MSG( Ok(), (WXDisplay*) NULL, wxT("invalid bitmap") );
1120
1121     return M_BMPDATA->m_display;
1122 }
1123
1124 #if wxUSE_NANOX
1125 // Copy from the drawable to the wxImage
1126 bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image)
1127 {
1128     GR_SCREEN_INFO sinfo;
1129     int x, y;
1130     GR_PIXELVAL *pixels;
1131     GR_PALETTE* palette = NULL;
1132     unsigned char rgb[3], *pp;
1133
1134     GrGetScreenInfo(&sinfo);
1135
1136     if (sinfo.pixtype == MWPF_PALETTE) {
1137         if(!(palette = (GR_PALETTE*) malloc(sizeof(GR_PALETTE)))) {
1138             return FALSE;
1139         }
1140         GrGetSystemPalette(palette);
1141     }
1142
1143     if(!(pixels = (GR_PIXELVAL*) malloc(sizeof(GR_PIXELVAL) * width * height)))
1144     {
1145         return FALSE;
1146     }
1147
1148     image.Create(width, height);
1149
1150     GrReadArea(drawable, srcX, srcY, width, height,
1151             pixels);
1152
1153
1154     for(x = 0; x < sinfo.cols; x++) {
1155
1156         pp = (unsigned char *)pixels +
1157             ((x + (y * sinfo.cols)) *
1158              sizeof(GR_PIXELVAL));
1159
1160         switch(sinfo.pixtype) {
1161             /* FIXME: These may need modifying on big endian. */
1162             case MWPF_TRUECOLOR0888:
1163             case MWPF_TRUECOLOR888:
1164                 rgb[0] = pp[2];
1165                 rgb[1] = pp[1];
1166                 rgb[2] = pp[0];
1167                 break;
1168             case MWPF_PALETTE:
1169                 rgb[0] = palette->palette[pp[0]].r;
1170                 rgb[1] = palette->palette[pp[0]].g;
1171                 rgb[2] = palette->palette[pp[0]].b;
1172                 break;
1173             case MWPF_TRUECOLOR565:
1174                 rgb[0] = pp[1] & 0xf8;
1175                 rgb[1] = ((pp[1] & 0x07) << 5) |
1176                     ((pp[0] & 0xe0) >> 3);
1177                 rgb[2] = (pp[0] & 0x1f) << 3;
1178                 break;
1179             case MWPF_TRUECOLOR555:
1180                 rgb[0] = (pp[1] & 0x7c) << 1;
1181                 rgb[1] = ((pp[1] & 0x03) << 6) |
1182                     ((pp[0] & 0xe0) >> 2);
1183                 rgb[2] = (pp[0] & 0x1f) << 3;
1184                 break;
1185             case MWPF_TRUECOLOR332:
1186                 rgb[0] = pp[0] & 0xe0;
1187                 rgb[1] = (pp[0] & 0x1c) << 3;
1188                 rgb[2] = (pp[0] & 0x03) << 6;
1189                 break;
1190             default:
1191                 fprintf(stderr, "Unsupported pixel "
1192                         "format\n");
1193                 return 1;
1194         }
1195
1196         image.SetRGB(x, y, rgb[0], rgb[1], rgb[2]);
1197
1198     }
1199
1200     free(pixels);
1201     if(palette) free(palette);
1202
1203     return TRUE;
1204 }
1205
1206 #if 0
1207 int GrGetPixelColor(GR_SCREEN_INFO* sinfo, GR_PALETTE* palette, GR_PIXELVAL pixel,
1208     unsigned char* red, unsigned char* green, unsigned char* blue)
1209 {
1210     unsigned char rgb[3], *pp;
1211
1212     pp = (unsigned char*) & pixel ;
1213
1214     switch (sinfo.pixtype)
1215     {
1216         /* FIXME: These may need modifying on big endian. */
1217         case MWPF_TRUECOLOR0888:
1218         case MWPF_TRUECOLOR888:
1219             rgb[0] = pp[2];
1220             rgb[1] = pp[1];
1221             rgb[2] = pp[0];
1222             break;
1223         case MWPF_PALETTE:
1224             rgb[0] = palette->palette[pp[0]].r;
1225             rgb[1] = palette->palette[pp[0]].g;
1226             rgb[2] = palette->palette[pp[0]].b;
1227             break;
1228         case MWPF_TRUECOLOR565:
1229             rgb[0] = pp[1] & 0xf8;
1230             rgb[1] = ((pp[1] & 0x07) << 5) |
1231                 ((pp[0] & 0xe0) >> 3);
1232             rgb[2] = (pp[0] & 0x1f) << 3;
1233             break;
1234         case MWPF_TRUECOLOR555:
1235             rgb[0] = (pp[1] & 0x7c) << 1;
1236             rgb[1] = ((pp[1] & 0x03) << 6) |
1237                 ((pp[0] & 0xe0) >> 2);
1238             rgb[2] = (pp[0] & 0x1f) << 3;
1239             break;
1240         case MWPF_TRUECOLOR332:
1241             rgb[0] = pp[0] & 0xe0;
1242             rgb[1] = (pp[0] & 0x1c) << 3;
1243             rgb[2] = (pp[0] & 0x03) << 6;
1244             break;
1245         default:
1246             fprintf(stderr, "Unsupported pixel format\n");
1247             return 0;
1248     }
1249
1250
1251     *(red) = rgb[0];
1252     *(green) = rgb[1];
1253     *(blue) = rgb[2];
1254     return 1;
1255 }
1256 #endif
1257
1258 #endif
1259   // wxUSE_NANOX
1260
1261 // ============================================================================
1262 // Bitmap handlers
1263 // ============================================================================
1264
1265 IMPLEMENT_ABSTRACT_CLASS(wxBitmapHandler, wxBitmapHandlerBase);
1266
1267 #define M_BMPHANDLERDATA ((wxBitmapRefData *)bitmap->GetRefData())
1268
1269 #if wxUSE_XPM
1270
1271 #if wxHAVE_LIB_XPM || wxUSE_STREAMS
1272
1273 // ----------------------------------------------------------------------------
1274 // wxXPMFileHandler
1275 // ----------------------------------------------------------------------------
1276
1277 class wxXPMFileHandler : public wxBitmapHandler
1278 {
1279     DECLARE_DYNAMIC_CLASS(wxXPMFileHandler);
1280 public:
1281     wxXPMFileHandler()
1282     {
1283         m_name = "XPM file";
1284         m_extension = "xpm";
1285         m_type = wxBITMAP_TYPE_XPM;
1286     };
1287
1288     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1289                           int desiredWidth, int desiredHeight);
1290
1291     virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name,
1292                           int type, const wxPalette *palette = NULL);
1293
1294     virtual bool Create(wxBitmap *bitmap, void *data, long flags,
1295                         int width, int height, int depth = 1)
1296         { return FALSE; }
1297 };
1298
1299 IMPLEMENT_DYNAMIC_CLASS(wxXPMFileHandler, wxBitmapHandler);
1300
1301 bool wxXPMFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name,
1302                                 long flags, int desiredWidth,
1303                                 int desiredHeight)
1304 {
1305 #if wxHAVE_LIB_XPM
1306     if (!bitmap->GetRefData())
1307         bitmap->SetRefData( new wxBitmapRefData() );
1308
1309     M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1310
1311     Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1312
1313     int xscreen = DefaultScreen( xdisplay );
1314     Window xroot = RootWindow( xdisplay, xscreen );
1315
1316     int bpp = DefaultDepth( xdisplay, xscreen );
1317
1318     XpmAttributes xpmAttr;
1319     xpmAttr.valuemask = XpmReturnInfos;    // nothing yet, but get infos back
1320
1321     Pixmap pixmap;
1322     Pixmap mask = 0;
1323
1324     int ErrorStatus = XpmReadFileToPixmap( xdisplay, xroot,
1325                                            (char*) name.c_str(),
1326                                            &pixmap, &mask, &xpmAttr);
1327
1328     if (ErrorStatus == XpmSuccess)
1329     {
1330         M_BMPHANDLERDATA->m_width = xpmAttr.width;
1331         M_BMPHANDLERDATA->m_height = xpmAttr.height;
1332
1333         M_BMPHANDLERDATA->m_bpp = bpp;  // mono as well?
1334
1335         XpmFreeAttributes(&xpmAttr);
1336
1337         M_BMPHANDLERDATA->m_bitmap = (WXPixmap) pixmap;
1338
1339         if (mask)
1340         {
1341             M_BMPHANDLERDATA->m_mask = new wxMask;
1342             M_BMPHANDLERDATA->m_mask->SetBitmap( (WXPixmap) mask );
1343             M_BMPHANDLERDATA->m_mask->SetDisplay( xdisplay );
1344         }
1345     }
1346     else
1347     {
1348         UnRef();
1349
1350         return FALSE;
1351     }
1352
1353     return TRUE;
1354 #elif wxUSE_STREAMS
1355     wxXPMDecoder decoder;
1356     wxFileInputStream stream(name);
1357     if (stream.Ok())
1358     {
1359         wxImage image(decoder.ReadFile(stream));
1360         return image.Ok() && bitmap->CreateFromImage(image);
1361     }
1362
1363     return FALSE;
1364 #else // !wxHAVE_LIB_XPM && !wxUSE_STREAMS
1365     return FALSE;
1366 #endif // wxHAVE_LIB_XPM / wxUSE_STREAMS
1367 }
1368
1369 bool wxXPMFileHandler::SaveFile(const wxBitmap *bitmap, const wxString& name,
1370                                 int type,
1371                                 const wxPalette *WXUNUSED(palette))
1372 {
1373     wxImage image(bitmap->ConvertToImage());
1374     if (image.Ok()) return image.SaveFile( name, (wxBitmapType)type );
1375
1376     return FALSE;
1377 }
1378
1379 #endif // wxHAVE_LIB_XPM || wxUSE_STREAMS
1380
1381 // ----------------------------------------------------------------------------
1382 // wxXPMDataHandler
1383 // ----------------------------------------------------------------------------
1384
1385 class wxXPMDataHandler : public wxBitmapHandler
1386 {
1387     DECLARE_DYNAMIC_CLASS(wxXPMDataHandler);
1388 public:
1389     wxXPMDataHandler()
1390     {
1391         m_name = "XPM data";
1392         m_extension = "xpm";
1393         m_type = wxBITMAP_TYPE_XPM_DATA;
1394     };
1395
1396     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1397                           int desiredWidth, int desiredHeight)
1398         { return FALSE; }
1399
1400     virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name,
1401                           int type, const wxPalette *palette = NULL)
1402         { return FALSE; }
1403
1404     virtual bool Create(wxBitmap *bitmap, void *data, long flags,
1405                         int width, int height, int depth = 1);
1406 };
1407
1408 IMPLEMENT_DYNAMIC_CLASS(wxXPMDataHandler, wxBitmapHandler);
1409
1410 bool wxXPMDataHandler::Create(wxBitmap *bitmap, void *bits,
1411                               long WXUNUSED(flags),
1412                               int width, int height, int WXUNUSED(depth))
1413 {
1414 #if wxHAVE_LIB_XPM
1415     wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") )
1416
1417     if (!bitmap->GetRefData())
1418         bitmap->SetRefData( new wxBitmapRefData() );
1419
1420     M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1421
1422     Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1423
1424     int xscreen = DefaultScreen( xdisplay );
1425     Window xroot = RootWindow( xdisplay, xscreen );
1426
1427     int bpp = DefaultDepth( xdisplay, xscreen );
1428
1429     XpmAttributes xpmAttr;
1430     xpmAttr.valuemask = XpmReturnInfos;    // nothing yet, but get infos back
1431
1432     Pixmap pixmap = 0;
1433     Pixmap mask = 0;
1434
1435     int ErrorStatus = XpmCreatePixmapFromData( xdisplay, xroot, (char**) bits,
1436                                                &pixmap, &mask, &xpmAttr );
1437
1438     if (ErrorStatus == XpmSuccess)
1439     {
1440         M_BMPHANDLERDATA->m_width = xpmAttr.width;
1441         M_BMPHANDLERDATA->m_height = xpmAttr.height;
1442
1443         M_BMPHANDLERDATA->m_bpp = bpp;  // mono as well?
1444
1445 #if __WXDEBUG__
1446         unsigned int depthRet;
1447         int xRet, yRet;
1448         unsigned int widthRet, heightRet, borderWidthRet;
1449         XGetGeometry( xdisplay, pixmap, &xroot, &xRet, &yRet,
1450             &widthRet, &heightRet, &borderWidthRet, &depthRet);
1451
1452         wxASSERT_MSG( bpp == (int)depthRet, wxT("colour depth mismatch") );
1453 #endif
1454
1455         XpmFreeAttributes(&xpmAttr);
1456
1457         M_BMPHANDLERDATA->m_pixmap = (WXPixmap) pixmap;
1458
1459         if (mask)
1460         {
1461             M_BMPHANDLERDATA->m_mask = new wxMask;
1462             M_BMPHANDLERDATA->m_mask->SetBitmap( (WXPixmap) mask );
1463             M_BMPHANDLERDATA->m_mask->SetDisplay( xdisplay );
1464         }
1465         return TRUE;
1466     }
1467     else
1468     {
1469         bitmap->UnRef();
1470
1471         return FALSE;
1472     }
1473 #else // !wxHAVE_LIB_XPM
1474     wxXPMDecoder decoder;
1475     wxImage image(decoder.ReadData((const char **)bits));
1476     return image.Ok() && bitmap->CreateFromImage(image);
1477 #endif // wxHAVE_LIB_XPM/!wxHAVE_LIB_XPM
1478 }
1479
1480 #endif // wxUSE_XPM
1481
1482 // ----------------------------------------------------------------------------
1483 // wxXBMDataHandler
1484 // ----------------------------------------------------------------------------
1485
1486 class WXDLLEXPORT wxXBMDataHandler: public wxBitmapHandler
1487 {
1488     DECLARE_DYNAMIC_CLASS(wxXBMDataHandler)
1489 public:
1490     inline wxXBMDataHandler()
1491     {
1492         m_name = "XBM data";
1493         m_extension = "xbm";
1494         m_type = wxBITMAP_TYPE_XBM_DATA;
1495     };
1496
1497     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1498                           int desiredWidth, int desiredHeight)
1499         { return FALSE; }
1500
1501     virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name,
1502                           int type, const wxPalette *palette = NULL)
1503         { return FALSE; }
1504
1505     virtual bool Create(wxBitmap *bitmap, void *data, long flags,
1506                         int width, int height, int depth = 1);
1507 };
1508
1509 IMPLEMENT_DYNAMIC_CLASS(wxXBMDataHandler, wxBitmapHandler);
1510
1511 bool wxXBMDataHandler::Create( wxBitmap *bitmap, void *bits,
1512                                long WXUNUSED(flags),
1513                                int width, int height, int depth)
1514 {
1515 #if !wxUSE_NANOX
1516     if (!bitmap->GetRefData())
1517         bitmap->SetRefData( new wxBitmapRefData() );
1518
1519     M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1520
1521     Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1522
1523     int xscreen = DefaultScreen( xdisplay );
1524     Window xroot = RootWindow( xdisplay, xscreen );
1525
1526     M_BMPHANDLERDATA->m_mask = (wxMask *) NULL;
1527     M_BMPHANDLERDATA->m_bitmap =
1528         (WXPixmap) XCreateBitmapFromData( xdisplay, xroot,
1529                                           (char *) bits, width, height );
1530     M_BMPHANDLERDATA->m_width = width;
1531     M_BMPHANDLERDATA->m_height = height;
1532     M_BMPHANDLERDATA->m_bpp = 1;
1533
1534     return TRUE;
1535 #endif
1536     wxCHECK_MSG( M_BMPHANDLERDATA->m_bitmap, FALSE,
1537                  wxT("couldn't create bitmap") );
1538 }
1539
1540 void wxBitmap::InitStandardHandlers()
1541 {
1542     AddHandler(new wxXBMDataHandler);
1543 #if wxUSE_XPM
1544 #if wxHAVE_LIB_XPM || wxUSE_STREAMS
1545     AddHandler(new wxXPMFileHandler);
1546 #endif
1547     AddHandler(new wxXPMDataHandler);
1548 #endif
1549 }