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