src/x11/bitmap.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/x11/bitmap.cpp
   3 // Purpose:     wxBitmap
   4 // Author:      Julian Smart, Robert Roebling
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart, Robert Roebling
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // for compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #include "wx/bitmap.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/log.h"
  19     #include "wx/app.h"
  20     #include "wx/dcmemory.h"
  21     #include "wx/icon.h"
  22     #include "wx/math.h"
  23     #include "wx/image.h"
  24 #endif
  25
  26 #include "wx/x11/private.h"
  27
  28 /* No point in using libXPM for NanoX */
  29 #if wxUSE_NANOX
  30 #undef wxHAVE_LIB_XPM
  31 #define wxHAVE_LIB_XPM 0
  32
  33 // Copy from the drawable to the wxImage
  34 bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image);
  35 #endif
  36
  37 #if wxUSE_XPM
  38 #if wxHAVE_LIB_XPM
  39 #include <X11/xpm.h>
  40 #else
  41 #include "wx/xpmdecod.h"
  42 #include "wx/wfstream.h"
  43 #endif
  44 #endif
  45
  46 //-----------------------------------------------------------------------------
  47 // wxMask
  48 //-----------------------------------------------------------------------------
  49
  50 IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject)
  51
  52 wxMask::wxMask()
  53 {
  54     m_bitmap = NULL;
  55     m_display = NULL;
  56 }
  57
  58 wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
  59 {
  60     m_bitmap = NULL;
  61     Create( bitmap, colour );
  62 }
  63
  64 wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
  65 {
  66     m_bitmap = NULL;
  67     Create( bitmap, paletteIndex );
  68 }
  69
  70 wxMask::wxMask( const wxBitmap& bitmap )
  71 {
  72     m_bitmap = NULL;
  73     Create( bitmap );
  74 }
  75
  76 wxMask::~wxMask()
  77 {
  78     if (m_bitmap)
  79         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
  80 }
  81
  82 bool wxMask::Create( const wxBitmap& bitmap,
  83                      const wxColour& colour )
  84 {
  85 #if !wxUSE_NANOX
  86     if (m_bitmap)
  87     {
  88         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
  89         m_bitmap = NULL;
  90     }
  91
  92     m_display = bitmap.GetDisplay();
  93
  94     wxImage image = bitmap.ConvertToImage();
  95     if (!image.Ok()) return false;
  96
  97     m_display = bitmap.GetDisplay();
  98
  99     Display *xdisplay = (Display*) m_display;
 100     int xscreen = DefaultScreen( xdisplay );
 101     Window xroot = RootWindow( xdisplay, xscreen );
 102
 103     m_bitmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, image.GetWidth(), image.GetHeight(), 1 );
 104     GC gc = XCreateGC( xdisplay, (Pixmap) m_bitmap, 0, NULL );
 105
 106     XSetForeground( xdisplay, gc, WhitePixel(xdisplay,xscreen) );
 107     XSetFillStyle( xdisplay, gc, FillSolid );
 108     XFillRectangle( xdisplay, (Pixmap) m_bitmap, gc, 0, 0, image.GetWidth(), image.GetHeight() );
 109
 110     unsigned char *data = image.GetData();
 111     int index = 0;
 112
 113     unsigned char red = colour.Red();
 114     unsigned char green = colour.Green();
 115     unsigned char blue = colour.Blue();
 116
 117     int bpp = wxTheApp->GetVisualInfo(m_display)->m_visualDepth;
 118
 119     if (bpp == 15)
 120     {
 121         red &= 0xf8;
 122         green &= 0xf8;
 123         blue &= 0xf8;
 124     } else
 125     if (bpp == 16)
 126     {
 127         red &= 0xf8;
 128         green &= 0xfc;
 129         blue &= 0xf8;
 130     } else
 131     if (bpp == 12)
 132     {
 133         red &= 0xf0;
 134         green &= 0xf0;
 135         blue &= 0xf0;
 136     }
 137
 138     XSetForeground( xdisplay, gc, BlackPixel(xdisplay,xscreen) );
 139
 140     int width = image.GetWidth();
 141     int height = image.GetHeight();
 142     for (int j = 0; j < height; j++)
 143     {
 144         int start_x = -1;
 145         int i;
 146         for (i = 0; i < width; i++)
 147         {
 148             if ((data[index] == red) &&
 149                 (data[index+1] == green) &&
 150                 (data[index+2] == blue))
 151             {
 152                 if (start_x == -1)
 153                 start_x = i;
 154             }
 155             else
 156             {
 157                 if (start_x != -1)
 158                 {
 159                     XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i-1, j );
 160                     start_x = -1;
 161                 }
 162             }
 163             index += 3;
 164         }
 165         if (start_x != -1)
 166             XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i, j );
 167     }
 168
 169     XFreeGC( xdisplay, gc );
 170
 171     return true;
 172 #else
 173     return false;
 174 #endif
 175     // wxUSE_NANOX
 176 }
 177
 178 bool wxMask::Create( const wxBitmap& bitmap, int paletteIndex )
 179 {
 180     unsigned char r,g,b;
 181     wxPalette *pal = bitmap.GetPalette();
 182
 183     wxCHECK_MSG( pal, false, wxT("Cannot create mask from bitmap without palette") );
 184
 185     pal->GetRGB(paletteIndex, &r, &g, &b);
 186
 187     return Create(bitmap, wxColour(r, g, b));
 188 }
 189
 190 bool wxMask::Create( const wxBitmap& bitmap )
 191 {
 192 #if !wxUSE_NANOX
 193     if (m_bitmap)
 194     {
 195         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
 196         m_bitmap = NULL;
 197     }
 198
 199     if (!bitmap.Ok()) return false;
 200
 201     wxCHECK_MSG( bitmap.GetBitmap(), false, wxT("Cannot create mask from colour bitmap") );
 202
 203     m_display = bitmap.GetDisplay();
 204
 205     int xscreen = DefaultScreen( (Display*) m_display );
 206     Window xroot = RootWindow( (Display*) m_display, xscreen );
 207
 208     m_bitmap = (WXPixmap) XCreatePixmap( (Display*) m_display, xroot, bitmap.GetWidth(), bitmap.GetHeight(), 1 );
 209
 210     if (!m_bitmap) return false;
 211
 212     GC gc = XCreateGC( (Display*) m_display, (Pixmap) m_bitmap, 0, NULL );
 213
 214     XCopyPlane( (Display*) m_display, (Pixmap) bitmap.GetBitmap(), (Pixmap) m_bitmap,
 215        gc, 0, 0, bitmap.GetWidth(), bitmap.GetHeight(), 0, 0, 1 );
 216
 217     XFreeGC( (Display*) m_display, gc );
 218
 219     return true;
 220 #else
 221     return false;
 222 #endif
 223     // wxUSE_NANOX
 224 }
 225
 226 //-----------------------------------------------------------------------------
 227 // wxBitmap
 228 //-----------------------------------------------------------------------------
 229
 230 class wxBitmapRefData: public wxObjectRefData
 231 {
 232 public:
 233     wxBitmapRefData();
 234     virtual ~wxBitmapRefData();
 235
 236     WXPixmap        m_pixmap;
 237     WXPixmap        m_bitmap;
 238     WXDisplay      *m_display;
 239     wxMask         *m_mask;
 240     int             m_width;
 241     int             m_height;
 242     int             m_bpp;
 243     wxPalette      *m_palette;
 244 };
 245
 246 wxBitmapRefData::wxBitmapRefData()
 247 {
 248     m_pixmap = NULL;
 249     m_bitmap = NULL;
 250     m_display = NULL;
 251     m_mask = (wxMask *) NULL;
 252     m_width = 0;
 253     m_height = 0;
 254     m_bpp = 0;
 255     m_palette = (wxPalette *) NULL;
 256 }
 257
 258 wxBitmapRefData::~wxBitmapRefData()
 259 {
 260     if (m_pixmap) XFreePixmap( (Display*) m_display, (Pixmap) m_pixmap );
 261     if (m_bitmap) XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
 262     if (m_mask) delete m_mask;
 263     if (m_palette) delete m_palette;
 264 }
 265
 266 //-----------------------------------------------------------------------------
 267
 268 // helper function
 269
 270 static WXPixmap wxGetSubPixmap( WXDisplay* xdisplay, WXPixmap xpixmap,
 271                                 int x, int y, int width, int height,
 272                                 int depth )
 273 {
 274     Display * const dpy = (Display *)xdisplay;
 275
 276     int xscreen = DefaultScreen( dpy );
 277     Window xroot = RootWindow( dpy, xscreen );
 278     Visual* xvisual = DefaultVisual( dpy, xscreen );
 279
 280     XImage* ximage = XCreateImage( dpy, xvisual, depth,
 281                                    ZPixmap, 0, 0, width, height, 32, 0 );
 282     ximage->data = (char*)malloc( ximage->bytes_per_line * ximage->height );
 283     ximage = XGetSubImage( dpy, (Pixmap)xpixmap,
 284                            x, y, width, height,
 285                            AllPlanes, ZPixmap, ximage, 0, 0 );
 286
 287     GC gc = XCreateGC( dpy, (Pixmap)xpixmap, 0, NULL );
 288     Pixmap ret = XCreatePixmap( dpy, xroot,
 289                                 width, height, depth );
 290
 291     XPutImage( dpy, ret, gc, ximage,
 292                0, 0, 0, 0, width, height );
 293     XDestroyImage( ximage );
 294     XFreeGC( dpy, gc );
 295
 296     return (WXPixmap)ret;
 297 }
 298
 299 #define M_BMPDATA ((wxBitmapRefData *)m_refData)
 300
 301 IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
 302
 303 wxBitmap::wxBitmap()
 304 {
 305 }
 306
 307 wxBitmap::wxBitmap( int width, int height, int depth )
 308 {
 309     Create( width, height, depth );
 310 }
 311
 312 bool wxBitmap::Create( int width, int height, int depth )
 313 {
 314     UnRef();
 315
 316     wxCHECK_MSG( (width > 0) && (height > 0), false, wxT("invalid bitmap size") );
 317
 318     m_refData = new wxBitmapRefData();
 319
 320     M_BMPDATA->m_display = wxGlobalDisplay();
 321
 322     wxASSERT_MSG( M_BMPDATA->m_display, wxT("No display") );
 323
 324     int xscreen = DefaultScreen( (Display*) M_BMPDATA->m_display );
 325     Window xroot = RootWindow( (Display*) M_BMPDATA->m_display, xscreen );
 326
 327     int bpp = DefaultDepth( (Display*) M_BMPDATA->m_display, xscreen );
 328     if (depth == -1) depth = bpp;
 329
 330     wxCHECK_MSG( (depth == bpp) ||
 331                  (depth == 1), false, wxT("invalid bitmap depth") );
 332
 333     M_BMPDATA->m_mask = (wxMask *) NULL;
 334     M_BMPDATA->m_width = width;
 335     M_BMPDATA->m_height = height;
 336
 337 #if wxUSE_NANOX
 338     M_BMPDATA->m_pixmap = (WXPixmap) GrNewPixmap(width, height, NULL);
 339     M_BMPDATA->m_bpp = bpp;
 340
 341     wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("Bitmap creation failed") );
 342 #else
 343     if (depth == 1)
 344     {
 345         M_BMPDATA->m_bitmap = (WXPixmap) XCreatePixmap( (Display*) M_BMPDATA->m_display, xroot, width, height, 1 );
 346
 347         wxASSERT_MSG( M_BMPDATA->m_bitmap, wxT("Bitmap creation failed") );
 348
 349         M_BMPDATA->m_bpp = 1;
 350     }
 351     else
 352     {
 353         M_BMPDATA->m_pixmap = (WXPixmap) XCreatePixmap( (Display*) M_BMPDATA->m_display, xroot, width, height, depth );
 354
 355         wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("Pixmap creation failed") );
 356
 357         M_BMPDATA->m_bpp = depth;
 358     }
 359 #endif
 360     return Ok();
 361 }
 362
 363 bool wxBitmap::Create(void *data, wxBitmapType type,
 364                       int width, int height, int depth)
 365 {
 366     UnRef();
 367
 368     wxBitmapHandler *handler = FindHandler(type);
 369
 370     if ( handler == NULL ) {
 371         wxLogWarning(wxT("no data bitmap handler for type %ld defined."),
 372                      (long)type);
 373
 374         return false;
 375     }
 376
 377     return handler->Create(this, data, type, width, height, depth);
 378 }
 379
 380 bool wxBitmap::Create(WXPixmap pixmap)
 381 {
 382     UnRef();
 383     Pixmap xpixmap = (Pixmap)pixmap;
 384     Display* xdisplay = wxGlobalDisplay();
 385     int xscreen = DefaultScreen( xdisplay );
 386     Window xroot = RootWindow( xdisplay, xscreen );
 387
 388     // make a copy of the Pixmap
 389     Window root;
 390     Pixmap copy;
 391     int x, y;
 392     unsigned width, height, border, depth;
 393
 394     XGetGeometry( xdisplay, (Drawable)xpixmap, &root, &x, &y,
 395                   &width, &height, &border, &depth );
 396     copy = XCreatePixmap( xdisplay, xroot, width, height, depth );
 397
 398     GC gc = XCreateGC( xdisplay, copy, 0, NULL );
 399     XCopyArea( xdisplay, xpixmap, copy, gc, 0, 0, width, height, 0, 0 );
 400     XFreeGC( xdisplay, gc );
 401
 402     // fill in ref data
 403     wxBitmapRefData* ref = new wxBitmapRefData();
 404
 405     if( depth == 1 )
 406         ref->m_bitmap = (WXPixmap)copy;
 407     else
 408         ref->m_pixmap = (WXPixmap)copy;
 409
 410     ref->m_display = (WXDisplay*)xdisplay;
 411     ref->m_width = width;
 412     ref->m_height = height;
 413     ref->m_bpp = depth;
 414
 415     m_refData = ref;
 416
 417     return true;
 418 }
 419
 420 bool wxBitmap::CreateFromXpm( const char **bits )
 421 {
 422     wxCHECK_MSG( bits, false, wxT("NULL pointer in wxBitmap::CreateFromXpm") );
 423
 424     return Create(bits, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0);
 425 }
 426
 427 bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
 428 {
 429 #if wxUSE_NANOX
 430     if (!image.Ok())
 431     {
 432         wxASSERT_MSG(image.Ok(), wxT("Invalid wxImage passed to wxBitmap::CreateFromImage."));
 433         return false;
 434     }
 435
 436     int w = image.GetWidth();
 437     int h = image.GetHeight();
 438
 439     if (!Create(w, h, depth))
 440         return false;
 441
 442     // Unfortunately the mask has to be screen-depth since
 443     // 1-bpp bitmaps don't seem to be supported
 444     // TODO: implement transparent drawing, presumably
 445     // by doing several blits as per the Windows
 446     // implementation because Nano-X doesn't support
 447     // XSetClipMask.
 448     // TODO: could perhaps speed this function up
 449     // by making a buffer of pixel values,
 450     // and then calling GrArea to write that to the
 451     // pixmap. See demos/nxroach.c.
 452
 453     bool hasMask = image.HasMask();
 454
 455     GC pixmapGC = GrNewGC();
 456     Pixmap pixmap = (Pixmap) GetPixmap();
 457
 458     GC maskGC = 0;
 459     Pixmap maskPixmap = 0;
 460
 461     unsigned char maskR = 0;
 462     unsigned char maskG = 0;
 463     unsigned char maskB = 0;
 464
 465     if (hasMask)
 466     {
 467         maskR = image.GetMaskRed();
 468         maskG = image.GetMaskGreen();
 469         maskB = image.GetMaskBlue();
 470
 471         maskGC = GrNewGC();
 472         maskPixmap = GrNewPixmap(w, h, 0);
 473         if (!maskPixmap)
 474             hasMask = false;
 475         else
 476         {
 477             wxMask* mask = new wxMask;
 478             mask->SetBitmap((WXPixmap) maskPixmap);
 479             SetMask(mask);
 480         }
 481     }
 482
 483     GR_COLOR lastPixmapColour = 0;
 484     GR_COLOR lastMaskColour = 0;
 485
 486     int i, j;
 487     for (i = 0; i < w; i++)
 488     {
 489         for (j = 0; j < h; j++)
 490         {
 491             unsigned char red = image.GetRed(i, j);
 492             unsigned char green = image.GetGreen(i, j);
 493             unsigned char blue = image.GetBlue(i, j);
 494
 495             GR_COLOR colour = GR_RGB(red, green, blue);
 496
 497             // Efficiency measure
 498             if (colour != lastPixmapColour || (i == 0 && j == 0))
 499             {
 500                 GrSetGCForeground(pixmapGC, colour);
 501                 lastPixmapColour = colour;
 502             }
 503
 504             GrPoint(pixmap, pixmapGC, i, j);
 505
 506             if (hasMask)
 507             {
 508                 // scan the bitmap for the transparent colour and set the corresponding
 509                 // pixels in the mask to BLACK and the rest to WHITE
 510                 if (maskR == red && maskG == green && maskB == blue)
 511                 {
 512                     colour = GR_RGB(0, 0, 0);
 513                 }
 514                 else
 515                 {
 516                     colour = GR_RGB(255, 255, 255);
 517                 }
 518                 if (colour != lastMaskColour || (i == 0 && j == 0))
 519                 {
 520                     GrSetGCForeground(maskGC, colour);
 521                     lastMaskColour = colour;
 522                 }
 523                 GrPoint(maskPixmap, maskGC, i, j);
 524             }
 525         }
 526     }
 527
 528     GrDestroyGC(pixmapGC);
 529     if (hasMask)
 530         GrDestroyGC(maskGC);
 531
 532     return true;
 533 #else
 534     // !wxUSE_NANOX
 535
 536     UnRef();
 537
 538     wxCHECK_MSG( image.Ok(), false, wxT("invalid image") );
 539     wxCHECK_MSG( depth == -1, false, wxT("invalid bitmap depth") );
 540
 541     m_refData = new wxBitmapRefData();
 542
 543     M_BMPDATA->m_display = wxGlobalDisplay();
 544
 545     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 546
 547     int xscreen = DefaultScreen( xdisplay );
 548     Window xroot = RootWindow( xdisplay, xscreen );
 549     Visual* xvisual = DefaultVisual( xdisplay, xscreen );
 550
 551     int bpp = wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_visualDepth;
 552
 553     int width = image.GetWidth();
 554     int height = image.GetHeight();
 555     M_BMPDATA->m_width = width;
 556     M_BMPDATA->m_height = height;
 557
 558     if (depth != 1) depth = bpp;
 559     M_BMPDATA->m_bpp = depth;
 560
 561     if (depth == 1)
 562     {
 563         wxFAIL_MSG( wxT("mono images later") );
 564     }
 565     else
 566     {
 567         // Create image
 568
 569         XImage *data_image = XCreateImage( xdisplay, xvisual, bpp, ZPixmap, 0, 0, width, height, 32, 0 );
 570         data_image->data = (char*) malloc( data_image->bytes_per_line * data_image->height );
 571
 572         if (data_image->data == NULL)
 573         {
 574             wxLogError( wxT("Out of memory.") );  // TODO clean
 575             return false;
 576         }
 577
 578         M_BMPDATA->m_pixmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, depth );
 579
 580         // Create mask
 581
 582         XImage *mask_image = (XImage*) NULL;
 583         if (image.HasMask())
 584         {
 585             mask_image = XCreateImage( xdisplay, xvisual, 1, ZPixmap, 0, 0, width, height, 32, 0 );
 586             mask_image->data = (char*) malloc( mask_image->bytes_per_line * mask_image->height );
 587
 588             if (mask_image->data == NULL)
 589             {
 590                 wxLogError( wxT("Out of memory.") ); // TODO clean
 591                 return false;
 592             }
 593
 594             wxMask *mask = new wxMask();
 595             mask->SetDisplay( xdisplay );
 596             mask->SetBitmap( (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, 1 ) );
 597
 598             SetMask( mask );
 599         }
 600
 601         if (bpp < 8) bpp = 8;
 602
 603         // Render
 604
 605         enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR };
 606         byte_order b_o = RGB;
 607
 608         wxXVisualInfo* vi = wxTheApp->GetVisualInfo(M_BMPDATA->m_display);
 609         unsigned long greenMask = vi->m_visualGreenMask,
 610                       redMask   = vi->m_visualRedMask,
 611                       blueMask  = vi->m_visualBlueMask;
 612
 613         if (bpp > 8)
 614         {
 615             if ((redMask > greenMask) && (greenMask > blueMask))     b_o = RGB;
 616             else if ((redMask > blueMask) && (blueMask > greenMask)) b_o = RBG;
 617             else if ((blueMask > redMask) && (redMask > greenMask))  b_o = BRG;
 618             else if ((blueMask > greenMask) && (greenMask > redMask))b_o = BGR;
 619             else if ((greenMask > redMask) && (redMask > blueMask))  b_o = GRB;
 620             else if ((greenMask > blueMask) && (blueMask > redMask)) b_o = GBR;
 621         }
 622
 623         int r_mask = image.GetMaskRed();
 624         int g_mask = image.GetMaskGreen();
 625         int b_mask = image.GetMaskBlue();
 626
 627         unsigned char* data = image.GetData();
 628         wxASSERT_MSG( data, wxT("No image data") );
 629
 630         unsigned char *colorCube =
 631             wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_colorCube;
 632
 633         bool hasMask = image.HasMask();
 634
 635         int index = 0;
 636         for (int y = 0; y < height; y++)
 637         {
 638             for (int x = 0; x < width; x++)
 639             {
 640                 int r = data[index];
 641                 index++;
 642                 int g = data[index];
 643                 index++;
 644                 int b = data[index];
 645                 index++;
 646
 647                 if (hasMask)
 648                 {
 649                     if ((r == r_mask) && (b == b_mask) && (g == g_mask))
 650                         XPutPixel( mask_image, x, y, 0 );
 651                     else
 652                         XPutPixel( mask_image, x, y, 1 );
 653                 }
 654
 655                 switch (bpp)
 656                 {
 657                     case 8:
 658                     {
 659                         int pixel = 0;
 660                         pixel = colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
 661                         XPutPixel( data_image, x, y, pixel );
 662                         break;
 663                     }
 664                     case 12:  // SGI only
 665                     {
 666                         int pixel = 0;
 667                         switch (b_o)
 668                         {
 669                             case RGB: pixel = ((r & 0xf0) << 4) | (g & 0xf0) | ((b & 0xf0) >> 4); break;
 670                             case RBG: pixel = ((r & 0xf0) << 4) | (b & 0xf0) | ((g & 0xf0) >> 4); break;
 671                             case GRB: pixel = ((g & 0xf0) << 4) | (r & 0xf0) | ((b & 0xf0) >> 4); break;
 672                             case GBR: pixel = ((g & 0xf0) << 4) | (b & 0xf0) | ((r & 0xf0) >> 4); break;
 673                             case BRG: pixel = ((b & 0xf0) << 4) | (r & 0xf0) | ((g & 0xf0) >> 4); break;
 674                             case BGR: pixel = ((b & 0xf0) << 4) | (g & 0xf0) | ((r & 0xf0) >> 4); break;
 675                         }
 676                         XPutPixel( data_image, x, y, pixel );
 677                         break;
 678                     }
 679                     case 15:
 680                     {
 681                         int pixel = 0;
 682                         switch (b_o)
 683                         {
 684                             case RGB: pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
 685                             case RBG: pixel = ((r & 0xf8) << 7) | ((b & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
 686                             case GRB: pixel = ((g & 0xf8) << 7) | ((r & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
 687                             case GBR: pixel = ((g & 0xf8) << 7) | ((b & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
 688                             case BRG: pixel = ((b & 0xf8) << 7) | ((r & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
 689                             case BGR: pixel = ((b & 0xf8) << 7) | ((g & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
 690                         }
 691                         XPutPixel( data_image, x, y, pixel );
 692                         break;
 693                     }
 694                     case 16:
 695                     {
 696                         // I actually don't know if for 16-bit displays, it is alway the green
 697                         // component or the second component which has 6 bits.
 698                         int pixel = 0;
 699                         switch (b_o)
 700                         {
 701                             case RGB: pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
 702                             case RBG: pixel = ((r & 0xf8) << 8) | ((b & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
 703                             case GRB: pixel = ((g & 0xf8) << 8) | ((r & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
 704                             case GBR: pixel = ((g & 0xf8) << 8) | ((b & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
 705                             case BRG: pixel = ((b & 0xf8) << 8) | ((r & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
 706                             case BGR: pixel = ((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
 707                         }
 708                         XPutPixel( data_image, x, y, pixel );
 709                         break;
 710                     }
 711                     case 32:
 712                     case 24:
 713                     {
 714                         int pixel = 0;
 715                         switch (b_o)
 716                         {
 717                             case RGB: pixel = (r << 16) | (g << 8) | b; break;
 718                             case RBG: pixel = (r << 16) | (b << 8) | g; break;
 719                             case BRG: pixel = (b << 16) | (r << 8) | g; break;
 720                             case BGR: pixel = (b << 16) | (g << 8) | r; break;
 721                             case GRB: pixel = (g << 16) | (r << 8) | b; break;
 722                             case GBR: pixel = (g << 16) | (b << 8) | r; break;
 723                         }
 724                         XPutPixel( data_image, x, y, pixel );
 725                     }
 726                     default: break;
 727                 }
 728             } // for
 729         }  // for
 730
 731         // Blit picture
 732
 733         GC gc = XCreateGC( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, 0, NULL );
 734         XPutImage( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, gc, data_image, 0, 0, 0, 0, width, height );
 735         XDestroyImage( data_image );
 736         XFreeGC( xdisplay, gc );
 737
 738         // Blit mask
 739
 740         if (image.HasMask())
 741         {
 742             GC gc = XCreateGC( xdisplay, (Pixmap) GetMask()->GetBitmap(), 0, NULL );
 743             XPutImage( xdisplay, (Pixmap) GetMask()->GetBitmap(), gc, mask_image, 0, 0, 0, 0, width, height );
 744
 745             XDestroyImage( mask_image );
 746             XFreeGC( xdisplay, gc );
 747         }
 748     }
 749
 750     return true;
 751 #endif
 752     // wxUSE_NANOX
 753 }
 754
 755 wxImage wxBitmap::ConvertToImage() const
 756 {
 757     wxImage image;
 758
 759     wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
 760
 761     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 762     wxASSERT_MSG( xdisplay, wxT("No display") );
 763
 764 #if wxUSE_NANOX
 765     //int bpp = DefaultDepth(xdisplay, xscreen);
 766     wxGetImageFromDrawable((Pixmap) GetPixmap(), 0, 0, GetWidth(), GetHeight(), image);
 767     return image;
 768 #else
 769     // !wxUSE_NANOX
 770     int bpp = wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_visualDepth;
 771     XImage *x_image = NULL;
 772     if (GetPixmap())
 773     {
 774         x_image = XGetImage( xdisplay, (Pixmap) GetPixmap(),
 775             0, 0,
 776             GetWidth(), GetHeight(),
 777             AllPlanes, ZPixmap );
 778     } else
 779     if (GetBitmap())
 780     {
 781         x_image = XGetImage( xdisplay, (Pixmap) GetBitmap(),
 782             0, 0,
 783             GetWidth(), GetHeight(),
 784             AllPlanes, ZPixmap );
 785     } else
 786     {
 787         wxFAIL_MSG( wxT("Ill-formed bitmap") );
 788     }
 789
 790     wxCHECK_MSG( x_image, wxNullImage, wxT("couldn't create image") );
 791
 792     image.Create( GetWidth(), GetHeight() );
 793     char unsigned *data = image.GetData();
 794
 795     if (!data)
 796     {
 797         XDestroyImage( x_image );
 798         wxFAIL_MSG( wxT("couldn't create image") );
 799         return wxNullImage;
 800     }
 801
 802     XImage *x_image_mask = NULL;
 803     if (GetMask())
 804     {
 805         x_image_mask = XGetImage( xdisplay, (Pixmap) GetMask()->GetBitmap(),
 806             0, 0,
 807             GetWidth(), GetHeight(),
 808             AllPlanes, ZPixmap );
 809
 810         image.SetMaskColour( 16, 16, 16 );  // anything unlikely and dividable
 811     }
 812
 813     int red_shift_right = 0;
 814     int green_shift_right = 0;
 815     int blue_shift_right = 0;
 816     int red_shift_left = 0;
 817     int green_shift_left = 0;
 818     int blue_shift_left = 0;
 819     bool use_shift = false;
 820
 821     if (GetPixmap())
 822     {
 823         wxXVisualInfo* vi = wxTheApp->GetVisualInfo(M_BMPDATA->m_display);
 824
 825         red_shift_right = vi->m_visualRedShift;
 826         red_shift_left = 8 - vi->m_visualRedPrec;
 827         green_shift_right = vi->m_visualGreenShift;
 828         green_shift_left = 8 - vi->m_visualGreenPrec;
 829         blue_shift_right = vi->m_visualBlueShift;
 830         blue_shift_left = 8 - vi->m_visualBluePrec;
 831
 832         use_shift = (vi->m_visualType == GrayScale) ||
 833                     (vi->m_visualType != PseudoColor);
 834     }
 835
 836     if (GetBitmap())
 837     {
 838         bpp = 1;
 839     }
 840
 841     XColor *colors = (XColor*)wxTheApp->
 842         GetVisualInfo(M_BMPDATA->m_display)->m_visualColormap;
 843
 844     int width = GetWidth();
 845     int height = GetHeight();
 846     long pos = 0;
 847     for (int j = 0; j < height; j++)
 848     {
 849         for (int i = 0; i < width; i++)
 850         {
 851             unsigned long pixel = XGetPixel( x_image, i, j );
 852             if (bpp == 1)
 853             {
 854                 if (pixel == 0)
 855                 {
 856                     data[pos]   = 0;
 857                     data[pos+1] = 0;
 858                     data[pos+2] = 0;
 859                 }
 860                 else
 861                 {
 862                     data[pos]   = 255;
 863                     data[pos+1] = 255;
 864                     data[pos+2] = 255;
 865                 }
 866             }
 867             else if (use_shift)
 868             {
 869                 data[pos] =   (unsigned char)((pixel >> red_shift_right)   << red_shift_left);
 870                 data[pos+1] = (unsigned char)((pixel >> green_shift_right) << green_shift_left);
 871                 data[pos+2] = (unsigned char)((pixel >> blue_shift_right)  << blue_shift_left);
 872             }
 873             else if (colors)
 874             {
 875                 data[pos] =   (unsigned char)(colors[pixel].red   >> 8);
 876                 data[pos+1] = (unsigned char)(colors[pixel].green >> 8);
 877                 data[pos+2] = (unsigned char)(colors[pixel].blue  >> 8);
 878             }
 879             else
 880             {
 881                 wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") );
 882             }
 883
 884             if (x_image_mask)
 885             {
 886                 int mask_pixel = XGetPixel( x_image_mask, i, j );
 887                 if (mask_pixel == 0)
 888                 {
 889                     data[pos] = 16;
 890                     data[pos+1] = 16;
 891                     data[pos+2] = 16;
 892                 }
 893             }
 894
 895             pos += 3;
 896         }
 897     }
 898
 899     XDestroyImage( x_image );
 900     if (x_image_mask) XDestroyImage( x_image_mask );
 901     return image;
 902 #endif
 903     // wxUSE_NANOX
 904 }
 905
 906 wxBitmap::wxBitmap( const wxString &filename, wxBitmapType type )
 907 {
 908     LoadFile( filename, type );
 909 }
 910
 911 wxBitmap::wxBitmap( const char bits[], int width, int height, int depth )
 912 {
 913     m_refData = new wxBitmapRefData;
 914
 915     (void) Create((void*) bits, wxBITMAP_TYPE_XBM_DATA, width, height, depth);
 916 }
 917
 918 wxBitmap::~wxBitmap()
 919 {
 920 }
 921
 922 bool wxBitmap::operator == ( const wxBitmap& bmp ) const
 923 {
 924     return m_refData == bmp.m_refData;
 925 }
 926
 927 bool wxBitmap::operator != ( const wxBitmap& bmp ) const
 928 {
 929     return m_refData != bmp.m_refData;
 930 }
 931
 932 bool wxBitmap::Ok() const
 933 {
 934     return (m_refData != NULL);
 935 }
 936
 937 int wxBitmap::GetHeight() const
 938 {
 939     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 940
 941     return M_BMPDATA->m_height;
 942 }
 943
 944 int wxBitmap::GetWidth() const
 945 {
 946     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 947
 948     return M_BMPDATA->m_width;
 949 }
 950
 951 int wxBitmap::GetDepth() const
 952 {
 953     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 954
 955     return M_BMPDATA->m_bpp;
 956 }
 957
 958 wxMask *wxBitmap::GetMask() const
 959 {
 960     wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
 961
 962     return M_BMPDATA->m_mask;
 963 }
 964
 965 void wxBitmap::SetMask( wxMask *mask )
 966 {
 967     wxCHECK_RET( Ok(), wxT("invalid bitmap") );
 968
 969     if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
 970
 971     M_BMPDATA->m_mask = mask;
 972 }
 973
 974 bool wxBitmap::CopyFromIcon(const wxIcon& icon)
 975 {
 976     *this = icon;
 977     return true;
 978 }
 979
 980 wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
 981 {
 982     wxCHECK_MSG( Ok() &&
 983                  (rect.x >= 0) && (rect.y >= 0) &&
 984                  (rect.x+rect.width  <= M_BMPDATA->m_width ) &&
 985                  (rect.y+rect.height <= M_BMPDATA->m_height),
 986                  wxNullBitmap, wxT("invalid bitmap or bitmap region") );
 987
 988     wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
 989     wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
 990
 991     if( GetMask() )
 992     {
 993         wxMask* mask = new wxMask();
 994         mask->SetDisplay( GetMask()->GetDisplay() );
 995         mask->SetBitmap( wxGetSubPixmap( GetMask()->GetDisplay(),
 996                                          GetMask()->GetBitmap(),
 997                                          rect.x, rect.y,
 998                                          rect.width, rect.height,
 999                                          1 ) );
1000
1001         ret.SetMask( mask );
1002     }
1003
1004     if( GetPixmap() )
1005     {
1006         ret.SetPixmap( wxGetSubPixmap( GetDisplay(),
1007                                        GetPixmap(),
1008                                        rect.x, rect.y,
1009                                        rect.width, rect.height,
1010                                        M_BMPDATA->m_bpp ) );
1011     }
1012
1013     if( GetBitmap() )
1014     {
1015         ret.SetBitmap( wxGetSubPixmap( GetDisplay(),
1016                                        GetBitmap(),
1017                                        rect.x, rect.y,
1018                                        rect.width, rect.height,
1019                                        1 ) );
1020     }
1021
1022     return ret;
1023 }
1024
1025 bool wxBitmap::SaveFile( const wxString &name, wxBitmapType type,
1026                          const wxPalette *palette ) const
1027 {
1028     wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") );
1029
1030     wxBitmapHandler *handler = FindHandler(type);
1031
1032     // Try to save the bitmap via wxImage handlers:
1033     if (handler == NULL)
1034     {
1035         wxImage image(this->ConvertToImage());
1036         if (image.Ok()) return image.SaveFile( name, type );
1037
1038         return false;
1039     }
1040
1041     return handler->SaveFile(this, name, type, palette);
1042 }
1043
1044 bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type )
1045 {
1046     UnRef();
1047
1048     if (!wxFileExists(name)) return false;
1049
1050     wxBitmapHandler *handler = FindHandler(type);
1051
1052     if (handler == NULL)
1053     {
1054         wxImage image;
1055         if (!image.LoadFile( name, type ))
1056             return false;
1057
1058         if (image.Ok())
1059         {
1060             *this = wxBitmap(image);
1061             return true;
1062         }
1063         else return false;
1064     }
1065
1066     return handler->LoadFile(this, name, type, -1, -1);
1067 }
1068
1069 void wxBitmap::SetPalette(const wxPalette& palette)
1070 {
1071     wxCHECK_RET(Ok(), wxT("invalid bitmap"));
1072     wxCHECK_RET(GetDepth() > 1 && GetDepth() <= 8,
1073                 wxT("cannot set palette for bitmap of this depth"));
1074
1075     delete M_BMPDATA->m_palette;
1076     M_BMPDATA->m_palette = NULL;
1077
1078     if (!palette.Ok()) return;
1079
1080     M_BMPDATA->m_palette = new wxPalette(palette);
1081 }
1082
1083 wxPalette *wxBitmap::GetPalette() const
1084 {
1085     if (!Ok()) return (wxPalette *) NULL;
1086
1087     return M_BMPDATA->m_palette;
1088 }
1089
1090 void wxBitmap::SetHeight( int height )
1091 {
1092     if (!m_refData) m_refData = new wxBitmapRefData();
1093
1094     M_BMPDATA->m_height = height;
1095 }
1096
1097 void wxBitmap::SetWidth( int width )
1098 {
1099     if (!m_refData) m_refData = new wxBitmapRefData();
1100
1101     M_BMPDATA->m_width = width;
1102 }
1103
1104 void wxBitmap::SetDepth( int depth )
1105 {
1106     if (!m_refData) m_refData = new wxBitmapRefData();
1107
1108     M_BMPDATA->m_bpp = depth;
1109 }
1110
1111 void wxBitmap::SetPixmap( WXPixmap pixmap )
1112 {
1113     if (!m_refData) m_refData = new wxBitmapRefData();
1114
1115     M_BMPDATA->m_pixmap = pixmap;
1116 }
1117
1118 void wxBitmap::SetBitmap( WXPixmap bitmap )
1119 {
1120     if (!m_refData) m_refData = new wxBitmapRefData();
1121
1122     M_BMPDATA->m_bitmap = bitmap;
1123 }
1124
1125 WXPixmap wxBitmap::GetPixmap() const
1126 {
1127     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1128
1129     return M_BMPDATA->m_pixmap;
1130 }
1131
1132 WXPixmap wxBitmap::GetBitmap() const
1133 {
1134     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1135
1136     return M_BMPDATA->m_bitmap;
1137 }
1138
1139 WXPixmap wxBitmap::GetDrawable() const
1140 {
1141     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1142
1143     return M_BMPDATA->m_bpp == 1 ? M_BMPDATA->m_bitmap : M_BMPDATA->m_pixmap;
1144 }
1145
1146 WXDisplay *wxBitmap::GetDisplay() const
1147 {
1148     wxCHECK_MSG( Ok(), (WXDisplay*) NULL, wxT("invalid bitmap") );
1149
1150     return M_BMPDATA->m_display;
1151 }
1152
1153 #if wxUSE_NANOX
1154 // Copy from the drawable to the wxImage
1155 bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image)
1156 {
1157     GR_SCREEN_INFO sinfo;
1158     int x, y;
1159     GR_PIXELVAL *pixels;
1160     GR_PALETTE* palette = NULL;
1161     unsigned char rgb[3], *pp;
1162
1163     GrGetScreenInfo(&sinfo);
1164
1165     if (sinfo.pixtype == MWPF_PALETTE) {
1166         if(!(palette = (GR_PALETTE*) malloc(sizeof(GR_PALETTE)))) {
1167             return false;
1168         }
1169         GrGetSystemPalette(palette);
1170     }
1171
1172     if(!(pixels = (GR_PIXELVAL*) malloc(sizeof(GR_PIXELVAL) * width * height)))
1173     {
1174         return false;
1175     }
1176
1177     image.Create(width, height);
1178
1179     GrReadArea(drawable, srcX, srcY, width, height,
1180             pixels);
1181
1182
1183     for(x = 0; x < sinfo.cols; x++) {
1184
1185         pp = (unsigned char *)pixels +
1186             ((x + (y * sinfo.cols)) *
1187              sizeof(GR_PIXELVAL));
1188
1189         switch(sinfo.pixtype) {
1190             /* FIXME: These may need modifying on big endian. */
1191             case MWPF_TRUECOLOR0888:
1192             case MWPF_TRUECOLOR888:
1193                 rgb[0] = pp[2];
1194                 rgb[1] = pp[1];
1195                 rgb[2] = pp[0];
1196                 break;
1197             case MWPF_PALETTE:
1198                 rgb[0] = palette->palette[pp[0]].r;
1199                 rgb[1] = palette->palette[pp[0]].g;
1200                 rgb[2] = palette->palette[pp[0]].b;
1201                 break;
1202             case MWPF_TRUECOLOR565:
1203                 rgb[0] = pp[1] & 0xf8;
1204                 rgb[1] = ((pp[1] & 0x07) << 5) |
1205                     ((pp[0] & 0xe0) >> 3);
1206                 rgb[2] = (pp[0] & 0x1f) << 3;
1207                 break;
1208             case MWPF_TRUECOLOR555:
1209                 rgb[0] = (pp[1] & 0x7c) << 1;
1210                 rgb[1] = ((pp[1] & 0x03) << 6) |
1211                     ((pp[0] & 0xe0) >> 2);
1212                 rgb[2] = (pp[0] & 0x1f) << 3;
1213                 break;
1214             case MWPF_TRUECOLOR332:
1215                 rgb[0] = pp[0] & 0xe0;
1216                 rgb[1] = (pp[0] & 0x1c) << 3;
1217                 rgb[2] = (pp[0] & 0x03) << 6;
1218                 break;
1219             default:
1220                 fprintf(stderr, "Unsupported pixel "
1221                         "format\n");
1222                 return 1;
1223         }
1224
1225         image.SetRGB(x, y, rgb[0], rgb[1], rgb[2]);
1226
1227     }
1228
1229     free(pixels);
1230     if(palette) free(palette);
1231
1232     return true;
1233 }
1234
1235 #if 0
1236 int GrGetPixelColor(GR_SCREEN_INFO* sinfo, GR_PALETTE* palette, GR_PIXELVAL pixel,
1237     unsigned char* red, unsigned char* green, unsigned char* blue)
1238 {
1239     unsigned char rgb[3], *pp;
1240
1241     pp = (unsigned char*) & pixel ;
1242
1243     switch (sinfo.pixtype)
1244     {
1245         /* FIXME: These may need modifying on big endian. */
1246         case MWPF_TRUECOLOR0888:
1247         case MWPF_TRUECOLOR888:
1248             rgb[0] = pp[2];
1249             rgb[1] = pp[1];
1250             rgb[2] = pp[0];
1251             break;
1252         case MWPF_PALETTE:
1253             rgb[0] = palette->palette[pp[0]].r;
1254             rgb[1] = palette->palette[pp[0]].g;
1255             rgb[2] = palette->palette[pp[0]].b;
1256             break;
1257         case MWPF_TRUECOLOR565:
1258             rgb[0] = pp[1] & 0xf8;
1259             rgb[1] = ((pp[1] & 0x07) << 5) |
1260                 ((pp[0] & 0xe0) >> 3);
1261             rgb[2] = (pp[0] & 0x1f) << 3;
1262             break;
1263         case MWPF_TRUECOLOR555:
1264             rgb[0] = (pp[1] & 0x7c) << 1;
1265             rgb[1] = ((pp[1] & 0x03) << 6) |
1266                 ((pp[0] & 0xe0) >> 2);
1267             rgb[2] = (pp[0] & 0x1f) << 3;
1268             break;
1269         case MWPF_TRUECOLOR332:
1270             rgb[0] = pp[0] & 0xe0;
1271             rgb[1] = (pp[0] & 0x1c) << 3;
1272             rgb[2] = (pp[0] & 0x03) << 6;
1273             break;
1274         default:
1275             fprintf(stderr, "Unsupported pixel format\n");
1276             return 0;
1277     }
1278
1279
1280     *(red) = rgb[0];
1281     *(green) = rgb[1];
1282     *(blue) = rgb[2];
1283     return 1;
1284 }
1285 #endif
1286
1287 #endif
1288   // wxUSE_NANOX
1289
1290 // ============================================================================
1291 // Bitmap handlers
1292 // ============================================================================
1293
1294 IMPLEMENT_ABSTRACT_CLASS(wxBitmapHandler, wxBitmapHandlerBase)
1295
1296 #define M_BMPHANDLERDATA ((wxBitmapRefData *)bitmap->GetRefData())
1297
1298 #if wxUSE_XPM
1299
1300 #if wxHAVE_LIB_XPM || wxUSE_STREAMS
1301
1302 // ----------------------------------------------------------------------------
1303 // wxXPMFileHandler
1304 // ----------------------------------------------------------------------------
1305
1306 class wxXPMFileHandler : public wxBitmapHandler
1307 {
1308     DECLARE_DYNAMIC_CLASS(wxXPMFileHandler)
1309 public:
1310     wxXPMFileHandler()
1311     {
1312         SetName( wxT("XPM file") );
1313         SetExtension( wxT("xpm") );
1314         SetType( wxBITMAP_TYPE_XPM );
1315     };
1316
1317     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1318                           int desiredWidth, int desiredHeight);
1319
1320     virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name,
1321                           int type, const wxPalette *palette = NULL);
1322
1323     virtual bool Create(wxBitmap *WXUNUSED(bitmap), void *WXUNUSED(data), long WXUNUSED(flags),
1324                         int WXUNUSED(width), int WXUNUSED(height), int WXUNUSED(depth) = 1)
1325         { return false; }
1326 };
1327
1328 IMPLEMENT_DYNAMIC_CLASS(wxXPMFileHandler, wxBitmapHandler)
1329
1330 bool wxXPMFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name,
1331                                 long WXUNUSED(flags), int WXUNUSED(desiredWidth),
1332                                 int WXUNUSED(desiredHeight))
1333 {
1334 #if wxHAVE_LIB_XPM
1335     if (!bitmap->GetRefData())
1336         bitmap->SetRefData( new wxBitmapRefData() );
1337
1338     M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1339
1340     Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1341
1342     int xscreen = DefaultScreen( xdisplay );
1343     Window xroot = RootWindow( xdisplay, xscreen );
1344
1345     int bpp = DefaultDepth( xdisplay, xscreen );
1346
1347     XpmAttributes xpmAttr;
1348     xpmAttr.valuemask = XpmReturnInfos;    // nothing yet, but get infos back
1349
1350     Pixmap pixmap;
1351     Pixmap mask = 0;
1352
1353     int ErrorStatus = XpmReadFileToPixmap( xdisplay, xroot,
1354                                            (char*) name.c_str(),
1355                                            &pixmap, &mask, &xpmAttr);
1356
1357     if (ErrorStatus == XpmSuccess)
1358     {
1359         M_BMPHANDLERDATA->m_width = xpmAttr.width;
1360         M_BMPHANDLERDATA->m_height = xpmAttr.height;
1361
1362         M_BMPHANDLERDATA->m_bpp = bpp;  // mono as well?
1363
1364         XpmFreeAttributes(&xpmAttr);
1365
1366         M_BMPHANDLERDATA->m_bitmap = (WXPixmap) pixmap;
1367
1368         if (mask)
1369         {
1370             M_BMPHANDLERDATA->m_mask = new wxMask;
1371             M_BMPHANDLERDATA->m_mask->SetBitmap( (WXPixmap) mask );
1372             M_BMPHANDLERDATA->m_mask->SetDisplay( xdisplay );
1373         }
1374     }
1375     else
1376     {
1377         UnRef();
1378
1379         return false;
1380     }
1381
1382     return true;
1383 #elif wxUSE_STREAMS
1384     wxXPMDecoder decoder;
1385     wxFileInputStream stream(name);
1386     if (stream.Ok())
1387     {
1388         wxImage image(decoder.ReadFile(stream));
1389         return image.Ok() && bitmap->CreateFromImage(image);
1390     }
1391
1392     return false;
1393 #else // !wxHAVE_LIB_XPM && !wxUSE_STREAMS
1394     return false;
1395 #endif // wxHAVE_LIB_XPM / wxUSE_STREAMS
1396 }
1397
1398 bool wxXPMFileHandler::SaveFile(const wxBitmap *bitmap, const wxString& name,
1399                                 int type,
1400                                 const wxPalette *WXUNUSED(palette))
1401 {
1402     wxImage image(bitmap->ConvertToImage());
1403     if (image.Ok()) return image.SaveFile( name, (wxBitmapType)type );
1404
1405     return false;
1406 }
1407
1408 #endif // wxHAVE_LIB_XPM || wxUSE_STREAMS
1409
1410 // ----------------------------------------------------------------------------
1411 // wxXPMDataHandler
1412 // ----------------------------------------------------------------------------
1413
1414 class wxXPMDataHandler : public wxBitmapHandler
1415 {
1416     DECLARE_DYNAMIC_CLASS(wxXPMDataHandler)
1417 public:
1418     wxXPMDataHandler()
1419     {
1420         SetName( wxT("XPM data") );
1421         SetExtension( wxT("xpm") );
1422         SetType( wxBITMAP_TYPE_XPM_DATA );
1423     };
1424
1425     virtual bool LoadFile(wxBitmap *WXUNUSED(bitmap),
1426                           const wxString& WXUNUSED(name),
1427                           long WXUNUSED(flags),
1428                           int WXUNUSED(desiredWidth),
1429                           int WXUNUSED(desiredHeight))
1430         { return false; }
1431
1432     virtual bool SaveFile(const wxBitmap *WXUNUSED(bitmap),
1433                           const wxString& WXUNUSED(name),
1434                           int WXUNUSED(type),
1435                           const wxPalette *WXUNUSED(palette) = NULL)
1436         { return false; }
1437
1438     virtual bool Create(wxBitmap *bitmap, void *data, long flags,
1439                         int width, int height, int depth = 1);
1440 };
1441
1442 IMPLEMENT_DYNAMIC_CLASS(wxXPMDataHandler, wxBitmapHandler)
1443
1444 bool wxXPMDataHandler::Create(wxBitmap *bitmap, void *bits,
1445                               long WXUNUSED(flags),
1446                               int WXUNUSED(width), int WXUNUSED(height), int WXUNUSED(depth))
1447 {
1448 #if wxHAVE_LIB_XPM
1449     wxCHECK_MSG( bits != NULL, false, wxT("invalid bitmap data") );
1450
1451     if (!bitmap->GetRefData())
1452         bitmap->SetRefData( new wxBitmapRefData() );
1453
1454     M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1455
1456     Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1457
1458     int xscreen = DefaultScreen( xdisplay );
1459     Window xroot = RootWindow( xdisplay, xscreen );
1460
1461     int bpp = DefaultDepth( xdisplay, xscreen );
1462
1463     XpmAttributes xpmAttr;
1464     xpmAttr.valuemask = XpmReturnInfos;    // nothing yet, but get infos back
1465
1466     Pixmap pixmap = 0;
1467     Pixmap mask = 0;
1468
1469     int ErrorStatus = XpmCreatePixmapFromData( xdisplay, xroot, (char**) bits,
1470                                                &pixmap, &mask, &xpmAttr );
1471
1472     if (ErrorStatus == XpmSuccess)
1473     {
1474         M_BMPHANDLERDATA->m_width = xpmAttr.width;
1475         M_BMPHANDLERDATA->m_height = xpmAttr.height;
1476
1477         M_BMPHANDLERDATA->m_bpp = bpp;  // mono as well?
1478
1479 #if __WXDEBUG__
1480         unsigned int depthRet;
1481         int xRet, yRet;
1482         unsigned int widthRet, heightRet, borderWidthRet;
1483         XGetGeometry( xdisplay, pixmap, &xroot, &xRet, &yRet,
1484             &widthRet, &heightRet, &borderWidthRet, &depthRet);
1485
1486         wxASSERT_MSG( bpp == (int)depthRet, wxT("colour depth mismatch") );
1487 #endif
1488
1489         XpmFreeAttributes(&xpmAttr);
1490
1491         M_BMPHANDLERDATA->m_pixmap = (WXPixmap) pixmap;
1492
1493         if (mask)
1494         {
1495             M_BMPHANDLERDATA->m_mask = new wxMask;
1496             M_BMPHANDLERDATA->m_mask->SetBitmap( (WXPixmap) mask );
1497             M_BMPHANDLERDATA->m_mask->SetDisplay( xdisplay );
1498         }
1499         return true;
1500     }
1501     else
1502     {
1503         bitmap->UnRef();
1504
1505         return false;
1506     }
1507 #else // !wxHAVE_LIB_XPM
1508     wxXPMDecoder decoder;
1509     wxImage image(decoder.ReadData((const char **)bits));
1510     return image.Ok() && bitmap->CreateFromImage(image);
1511 #endif // wxHAVE_LIB_XPM/!wxHAVE_LIB_XPM
1512 }
1513
1514 #endif // wxUSE_XPM
1515
1516 // ----------------------------------------------------------------------------
1517 // wxXBMDataHandler
1518 // ----------------------------------------------------------------------------
1519
1520 class WXDLLEXPORT wxXBMDataHandler: public wxBitmapHandler
1521 {
1522     DECLARE_DYNAMIC_CLASS(wxXBMDataHandler)
1523 public:
1524     inline wxXBMDataHandler()
1525     {
1526         SetName( wxT("XBM data") );
1527         SetExtension( wxT("xbm") );
1528         SetType( wxBITMAP_TYPE_XBM_DATA );
1529     };
1530
1531     virtual bool LoadFile(wxBitmap *WXUNUSED(bitmap),
1532                           const wxString& WXUNUSED(name),
1533                           long WXUNUSED(flags),
1534                           int WXUNUSED(desiredWidth),
1535                           int WXUNUSED(desiredHeight))
1536         { return false; }
1537
1538     virtual bool SaveFile(const wxBitmap *WXUNUSED(bitmap),
1539                           const wxString& WXUNUSED(name),
1540                           int WXUNUSED(type),
1541                           const wxPalette *WXUNUSED(palette) = NULL)
1542         { return false; }
1543
1544     virtual bool Create(wxBitmap *bitmap, void *data, long flags,
1545                         int width, int height, int depth = 1);
1546 };
1547
1548 IMPLEMENT_DYNAMIC_CLASS(wxXBMDataHandler, wxBitmapHandler)
1549
1550 bool wxXBMDataHandler::Create( wxBitmap *bitmap, void *bits,
1551                                long WXUNUSED(flags),
1552                                int width, int height, int WXUNUSED(depth))
1553 {
1554 #if !wxUSE_NANOX
1555     if (!bitmap->GetRefData())
1556         bitmap->SetRefData( new wxBitmapRefData() );
1557
1558     M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1559
1560     Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1561
1562     int xscreen = DefaultScreen( xdisplay );
1563     Window xroot = RootWindow( xdisplay, xscreen );
1564
1565     M_BMPHANDLERDATA->m_mask = (wxMask *) NULL;
1566     M_BMPHANDLERDATA->m_bitmap =
1567         (WXPixmap) XCreateBitmapFromData( xdisplay, xroot,
1568                                           (char *) bits, width, height );
1569     M_BMPHANDLERDATA->m_width = width;
1570     M_BMPHANDLERDATA->m_height = height;
1571     M_BMPHANDLERDATA->m_bpp = 1;
1572
1573     return true;
1574 #else
1575    wxCHECK_MSG( M_BMPHANDLERDATA->m_bitmap, false,
1576                  wxT("couldn't create bitmap") );
1577 #endif
1578 }
1579
1580 void wxBitmap::InitStandardHandlers()
1581 {
1582     AddHandler(new wxXBMDataHandler);
1583 #if wxUSE_XPM
1584 #if wxHAVE_LIB_XPM || wxUSE_STREAMS
1585     AddHandler(new wxXPMFileHandler);
1586 #endif
1587     AddHandler(new wxXPMDataHandler);
1588 #endif
1589 }