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 #endif
  22
  23 #include "wx/icon.h"
  24 #include "wx/image.h"
  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 #include "wx/math.h"
  46
  47 //-----------------------------------------------------------------------------
  48 // wxMask
  49 //-----------------------------------------------------------------------------
  50
  51 IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject)
  52
  53 wxMask::wxMask()
  54 {
  55     m_bitmap = NULL;
  56     m_display = NULL;
  57 }
  58
  59 wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
  60 {
  61     m_bitmap = NULL;
  62     Create( bitmap, colour );
  63 }
  64
  65 wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
  66 {
  67     m_bitmap = NULL;
  68     Create( bitmap, paletteIndex );
  69 }
  70
  71 wxMask::wxMask( const wxBitmap& bitmap )
  72 {
  73     m_bitmap = NULL;
  74     Create( bitmap );
  75 }
  76
  77 wxMask::~wxMask()
  78 {
  79     if (m_bitmap)
  80         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
  81 }
  82
  83 bool wxMask::Create( const wxBitmap& bitmap,
  84                      const wxColour& colour )
  85 {
  86 #if !wxUSE_NANOX
  87     if (m_bitmap)
  88     {
  89         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
  90         m_bitmap = NULL;
  91     }
  92
  93     m_display = bitmap.GetDisplay();
  94
  95     wxImage image = bitmap.ConvertToImage();
  96     if (!image.Ok()) return false;
  97
  98     m_display = bitmap.GetDisplay();
  99
 100     Display *xdisplay = (Display*) m_display;
 101     int xscreen = DefaultScreen( xdisplay );
 102     Window xroot = RootWindow( xdisplay, xscreen );
 103
 104     m_bitmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, image.GetWidth(), image.GetHeight(), 1 );
 105     GC gc = XCreateGC( xdisplay, (Pixmap) m_bitmap, 0, NULL );
 106
 107     XSetForeground( xdisplay, gc, WhitePixel(xdisplay,xscreen) );
 108     XSetFillStyle( xdisplay, gc, FillSolid );
 109     XFillRectangle( xdisplay, (Pixmap) m_bitmap, gc, 0, 0, image.GetWidth(), image.GetHeight() );
 110
 111     unsigned char *data = image.GetData();
 112     int index = 0;
 113
 114     unsigned char red = colour.Red();
 115     unsigned char green = colour.Green();
 116     unsigned char blue = colour.Blue();
 117
 118     int bpp = wxTheApp->GetVisualInfo(m_display)->m_visualDepth;
 119
 120     if (bpp == 15)
 121     {
 122         red &= 0xf8;
 123         green &= 0xf8;
 124         blue &= 0xf8;
 125     } else
 126     if (bpp == 16)
 127     {
 128         red &= 0xf8;
 129         green &= 0xfc;
 130         blue &= 0xf8;
 131     } else
 132     if (bpp == 12)
 133     {
 134         red &= 0xf0;
 135         green &= 0xf0;
 136         blue &= 0xf0;
 137     }
 138
 139     XSetForeground( xdisplay, gc, BlackPixel(xdisplay,xscreen) );
 140
 141     int width = image.GetWidth();
 142     int height = image.GetHeight();
 143     for (int j = 0; j < height; j++)
 144     {
 145         int start_x = -1;
 146         int i;
 147         for (i = 0; i < width; i++)
 148         {
 149             if ((data[index] == red) &&
 150                 (data[index+1] == green) &&
 151                 (data[index+2] == blue))
 152             {
 153                 if (start_x == -1)
 154                 start_x = i;
 155             }
 156             else
 157             {
 158                 if (start_x != -1)
 159                 {
 160                     XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i-1, j );
 161                     start_x = -1;
 162                 }
 163             }
 164             index += 3;
 165         }
 166         if (start_x != -1)
 167             XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i, j );
 168     }
 169
 170     XFreeGC( xdisplay, gc );
 171
 172     return true;
 173 #else
 174     return false;
 175 #endif
 176     // wxUSE_NANOX
 177 }
 178
 179 bool wxMask::Create( const wxBitmap& bitmap, int paletteIndex )
 180 {
 181     unsigned char r,g,b;
 182     wxPalette *pal = bitmap.GetPalette();
 183
 184     wxCHECK_MSG( pal, false, wxT("Cannot create mask from bitmap without palette") );
 185
 186     pal->GetRGB(paletteIndex, &r, &g, &b);
 187
 188     return Create(bitmap, wxColour(r, g, b));
 189 }
 190
 191 bool wxMask::Create( const wxBitmap& bitmap )
 192 {
 193 #if !wxUSE_NANOX
 194     if (m_bitmap)
 195     {
 196         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
 197         m_bitmap = NULL;
 198     }
 199
 200     if (!bitmap.Ok()) return false;
 201
 202     wxCHECK_MSG( bitmap.GetBitmap(), false, wxT("Cannot create mask from colour bitmap") );
 203
 204     m_display = bitmap.GetDisplay();
 205
 206     int xscreen = DefaultScreen( (Display*) m_display );
 207     Window xroot = RootWindow( (Display*) m_display, xscreen );
 208
 209     m_bitmap = (WXPixmap) XCreatePixmap( (Display*) m_display, xroot, bitmap.GetWidth(), bitmap.GetHeight(), 1 );
 210
 211     if (!m_bitmap) return false;
 212
 213     GC gc = XCreateGC( (Display*) m_display, (Pixmap) m_bitmap, 0, NULL );
 214
 215     XCopyPlane( (Display*) m_display, (Pixmap) bitmap.GetBitmap(), (Pixmap) m_bitmap,
 216        gc, 0, 0, bitmap.GetWidth(), bitmap.GetHeight(), 0, 0, 1 );
 217
 218     XFreeGC( (Display*) m_display, gc );
 219
 220     return true;
 221 #else
 222     return false;
 223 #endif
 224     // wxUSE_NANOX
 225 }
 226
 227 //-----------------------------------------------------------------------------
 228 // wxBitmap
 229 //-----------------------------------------------------------------------------
 230
 231 class wxBitmapRefData: public wxObjectRefData
 232 {
 233 public:
 234     wxBitmapRefData();
 235     ~wxBitmapRefData();
 236
 237     WXPixmap        m_pixmap;
 238     WXPixmap        m_bitmap;
 239     WXDisplay      *m_display;
 240     wxMask         *m_mask;
 241     int             m_width;
 242     int             m_height;
 243     int             m_bpp;
 244     wxPalette      *m_palette;
 245 };
 246
 247 wxBitmapRefData::wxBitmapRefData()
 248 {
 249     m_pixmap = NULL;
 250     m_bitmap = NULL;
 251     m_display = NULL;
 252     m_mask = (wxMask *) NULL;
 253     m_width = 0;
 254     m_height = 0;
 255     m_bpp = 0;
 256     m_palette = (wxPalette *) NULL;
 257 }
 258
 259 wxBitmapRefData::~wxBitmapRefData()
 260 {
 261     if (m_pixmap) XFreePixmap( (Display*) m_display, (Pixmap) m_pixmap );
 262     if (m_bitmap) XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
 263     if (m_mask) delete m_mask;
 264     if (m_palette) delete m_palette;
 265 }
 266
 267 //-----------------------------------------------------------------------------
 268
 269 // helper function
 270
 271 static WXPixmap wxGetSubPixmap( WXDisplay* xdisplay, WXPixmap xpixmap,
 272                                 int x, int y, int width, int height,
 273                                 int depth )
 274 {
 275     Display * const dpy = (Display *)xdisplay;
 276
 277     int xscreen = DefaultScreen( dpy );
 278     Window xroot = RootWindow( dpy, xscreen );
 279     Visual* xvisual = DefaultVisual( dpy, xscreen );
 280
 281     XImage* ximage = XCreateImage( dpy, xvisual, depth,
 282                                    ZPixmap, 0, 0, width, height, 32, 0 );
 283     ximage->data = (char*)malloc( ximage->bytes_per_line * ximage->height );
 284     ximage = XGetSubImage( dpy, (Pixmap)xpixmap,
 285                            x, y, width, height,
 286                            AllPlanes, ZPixmap, ximage, 0, 0 );
 287
 288     GC gc = XCreateGC( dpy, (Pixmap)xpixmap, 0, NULL );
 289     Pixmap ret = XCreatePixmap( dpy, xroot,
 290                                 width, height, depth );
 291
 292     XPutImage( dpy, ret, gc, ximage,
 293                0, 0, 0, 0, width, height );
 294     XDestroyImage( ximage );
 295     XFreeGC( dpy, gc );
 296
 297     return (WXPixmap)ret;
 298 }
 299
 300 #define M_BMPDATA ((wxBitmapRefData *)m_refData)
 301
 302 IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
 303
 304 wxBitmap::wxBitmap()
 305 {
 306 }
 307
 308 wxBitmap::wxBitmap( int width, int height, int depth )
 309 {
 310     Create( width, height, depth );
 311 }
 312
 313 bool wxBitmap::Create( int width, int height, int depth )
 314 {
 315     UnRef();
 316
 317     wxCHECK_MSG( (width > 0) && (height > 0), false, wxT("invalid bitmap size") );
 318
 319     m_refData = new wxBitmapRefData();
 320
 321     M_BMPDATA->m_display = wxGlobalDisplay();
 322
 323     wxASSERT_MSG( M_BMPDATA->m_display, wxT("No display") );
 324
 325     int xscreen = DefaultScreen( (Display*) M_BMPDATA->m_display );
 326     Window xroot = RootWindow( (Display*) M_BMPDATA->m_display, xscreen );
 327
 328     int bpp = DefaultDepth( (Display*) M_BMPDATA->m_display, xscreen );
 329     if (depth == -1) depth = bpp;
 330
 331     wxCHECK_MSG( (depth == bpp) ||
 332                  (depth == 1), false, wxT("invalid bitmap depth") );
 333
 334     M_BMPDATA->m_mask = (wxMask *) NULL;
 335     M_BMPDATA->m_width = width;
 336     M_BMPDATA->m_height = height;
 337
 338 #if wxUSE_NANOX
 339     M_BMPDATA->m_pixmap = (WXPixmap) GrNewPixmap(width, height, NULL);
 340     M_BMPDATA->m_bpp = bpp;
 341
 342     wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("Bitmap creation failed") );
 343 #else
 344     if (depth == 1)
 345     {
 346         M_BMPDATA->m_bitmap = (WXPixmap) XCreatePixmap( (Display*) M_BMPDATA->m_display, xroot, width, height, 1 );
 347
 348         wxASSERT_MSG( M_BMPDATA->m_bitmap, wxT("Bitmap creation failed") );
 349
 350         M_BMPDATA->m_bpp = 1;
 351     }
 352     else
 353     {
 354         M_BMPDATA->m_pixmap = (WXPixmap) XCreatePixmap( (Display*) M_BMPDATA->m_display, xroot, width, height, depth );
 355
 356         wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("Pixmap creation failed") );
 357
 358         M_BMPDATA->m_bpp = depth;
 359     }
 360 #endif
 361     return Ok();
 362 }
 363
 364 bool wxBitmap::Create(void *data, wxBitmapType type,
 365                       int width, int height, int depth)
 366 {
 367     UnRef();
 368
 369     wxBitmapHandler *handler = FindHandler(type);
 370
 371     if ( handler == NULL ) {
 372         wxLogWarning(wxT("no data bitmap handler for type %ld defined."),
 373                      (long)type);
 374
 375         return false;
 376     }
 377
 378     return handler->Create(this, data, type, width, height, depth);
 379 }
 380
 381 bool wxBitmap::Create(WXPixmap pixmap)
 382 {
 383     UnRef();
 384     Pixmap xpixmap = (Pixmap)pixmap;
 385     Display* xdisplay = wxGlobalDisplay();
 386     int xscreen = DefaultScreen( xdisplay );
 387     Window xroot = RootWindow( xdisplay, xscreen );
 388
 389     // make a copy of the Pixmap
 390     Window root;
 391     Pixmap copy;
 392     int x, y;
 393     unsigned width, height, border, depth;
 394
 395     XGetGeometry( xdisplay, (Drawable)xpixmap, &root, &x, &y,
 396                   &width, &height, &border, &depth );
 397     copy = XCreatePixmap( xdisplay, xroot, width, height, depth );
 398
 399     GC gc = XCreateGC( xdisplay, copy, 0, NULL );
 400     XCopyArea( xdisplay, xpixmap, copy, gc, 0, 0, width, height, 0, 0 );
 401     XFreeGC( xdisplay, gc );
 402
 403     // fill in ref data
 404     wxBitmapRefData* ref = new wxBitmapRefData();
 405
 406     if( depth == 1 )
 407         ref->m_bitmap = (WXPixmap)copy;
 408     else
 409         ref->m_pixmap = (WXPixmap)copy;
 410
 411     ref->m_display = (WXDisplay*)xdisplay;
 412     ref->m_width = width;
 413     ref->m_height = height;
 414     ref->m_bpp = depth;
 415
 416     m_refData = ref;
 417
 418     return true;
 419 }
 420
 421 bool wxBitmap::CreateFromXpm( const char **bits )
 422 {
 423     wxCHECK_MSG( bits, false, wxT("NULL pointer in wxBitmap::CreateFromXpm") );
 424
 425     return Create(bits, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0);
 426 }
 427
 428 bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
 429 {
 430 #if wxUSE_NANOX
 431     if (!image.Ok())
 432     {
 433         wxASSERT_MSG(image.Ok(), wxT("Invalid wxImage passed to wxBitmap::CreateFromImage."));
 434         return false;
 435     }
 436
 437     int w = image.GetWidth();
 438     int h = image.GetHeight();
 439
 440     if (!Create(w, h, depth))
 441         return false;
 442
 443     // Unfortunately the mask has to be screen-depth since
 444     // 1-bpp bitmaps don't seem to be supported
 445     // TODO: implement transparent drawing, presumably
 446     // by doing several blits as per the Windows
 447     // implementation because Nano-X doesn't support
 448     // XSetClipMask.
 449     // TODO: could perhaps speed this function up
 450     // by making a buffer of pixel values,
 451     // and then calling GrArea to write that to the
 452     // pixmap. See demos/nxroach.c.
 453
 454     bool hasMask = image.HasMask();
 455
 456     GC pixmapGC = GrNewGC();
 457     Pixmap pixmap = (Pixmap) GetPixmap();
 458
 459     GC maskGC = 0;
 460     Pixmap maskPixmap = 0;
 461
 462     unsigned char maskR = 0;
 463     unsigned char maskG = 0;
 464     unsigned char maskB = 0;
 465
 466     if (hasMask)
 467     {
 468         maskR = image.GetMaskRed();
 469         maskG = image.GetMaskGreen();
 470         maskB = image.GetMaskBlue();
 471
 472         maskGC = GrNewGC();
 473         maskPixmap = GrNewPixmap(w, h, 0);
 474         if (!maskPixmap)
 475             hasMask = false;
 476         else
 477         {
 478             wxMask* mask = new wxMask;
 479             mask->SetBitmap((WXPixmap) maskPixmap);
 480             SetMask(mask);
 481         }
 482     }
 483
 484     GR_COLOR lastPixmapColour = 0;
 485     GR_COLOR lastMaskColour = 0;
 486
 487     int i, j;
 488     for (i = 0; i < w; i++)
 489     {
 490         for (j = 0; j < h; j++)
 491         {
 492             unsigned char red = image.GetRed(i, j);
 493             unsigned char green = image.GetGreen(i, j);
 494             unsigned char blue = image.GetBlue(i, j);
 495
 496             GR_COLOR colour = GR_RGB(red, green, blue);
 497
 498             // Efficiency measure
 499             if (colour != lastPixmapColour || (i == 0 && j == 0))
 500             {
 501                 GrSetGCForeground(pixmapGC, colour);
 502                 lastPixmapColour = colour;
 503             }
 504
 505             GrPoint(pixmap, pixmapGC, i, j);
 506
 507             if (hasMask)
 508             {
 509                 // scan the bitmap for the transparent colour and set the corresponding
 510                 // pixels in the mask to BLACK and the rest to WHITE
 511                 if (maskR == red && maskG == green && maskB == blue)
 512                 {
 513                     colour = GR_RGB(0, 0, 0);
 514                 }
 515                 else
 516                 {
 517                     colour = GR_RGB(255, 255, 255);
 518                 }
 519                 if (colour != lastMaskColour || (i == 0 && j == 0))
 520                 {
 521                     GrSetGCForeground(maskGC, colour);
 522                     lastMaskColour = colour;
 523                 }
 524                 GrPoint(maskPixmap, maskGC, i, j);
 525             }
 526         }
 527     }
 528
 529     GrDestroyGC(pixmapGC);
 530     if (hasMask)
 531         GrDestroyGC(maskGC);
 532
 533     return true;
 534 #else
 535     // !wxUSE_NANOX
 536
 537     UnRef();
 538
 539     wxCHECK_MSG( image.Ok(), false, wxT("invalid image") );
 540     wxCHECK_MSG( depth == -1, false, wxT("invalid bitmap depth") );
 541
 542     m_refData = new wxBitmapRefData();
 543
 544     M_BMPDATA->m_display = wxGlobalDisplay();
 545
 546     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 547
 548     int xscreen = DefaultScreen( xdisplay );
 549     Window xroot = RootWindow( xdisplay, xscreen );
 550     Visual* xvisual = DefaultVisual( xdisplay, xscreen );
 551
 552     int bpp = wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_visualDepth;
 553
 554     int width = image.GetWidth();
 555     int height = image.GetHeight();
 556     M_BMPDATA->m_width = width;
 557     M_BMPDATA->m_height = height;
 558
 559     if (depth != 1) depth = bpp;
 560     M_BMPDATA->m_bpp = depth;
 561
 562     if (depth == 1)
 563     {
 564         wxFAIL_MSG( wxT("mono images later") );
 565     }
 566     else
 567     {
 568         // Create image
 569
 570         XImage *data_image = XCreateImage( xdisplay, xvisual, bpp, ZPixmap, 0, 0, width, height, 32, 0 );
 571         data_image->data = (char*) malloc( data_image->bytes_per_line * data_image->height );
 572
 573         if (data_image->data == NULL)
 574         {
 575             wxLogError( wxT("Out of memory.") );  // TODO clean
 576             return false;
 577         }
 578
 579         M_BMPDATA->m_pixmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, depth );
 580
 581         // Create mask
 582
 583         XImage *mask_image = (XImage*) NULL;
 584         if (image.HasMask())
 585         {
 586             mask_image = XCreateImage( xdisplay, xvisual, 1, ZPixmap, 0, 0, width, height, 32, 0 );
 587             mask_image->data = (char*) malloc( mask_image->bytes_per_line * mask_image->height );
 588
 589             if (mask_image->data == NULL)
 590             {
 591                 wxLogError( wxT("Out of memory.") ); // TODO clean
 592                 return false;
 593             }
 594
 595             wxMask *mask = new wxMask();
 596             mask->SetDisplay( xdisplay );
 597             mask->SetBitmap( (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, 1 ) );
 598
 599             SetMask( mask );
 600         }
 601
 602         if (bpp < 8) bpp = 8;
 603
 604         // Render
 605
 606         enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR };
 607         byte_order b_o = RGB;
 608
 609         wxXVisualInfo* vi = wxTheApp->GetVisualInfo(M_BMPDATA->m_display);
 610         unsigned long greenMask = vi->m_visualGreenMask,
 611                       redMask   = vi->m_visualRedMask,
 612                       blueMask  = vi->m_visualBlueMask;
 613
 614         if (bpp > 8)
 615         {
 616             if ((redMask > greenMask) && (greenMask > blueMask))     b_o = RGB;
 617             else if ((redMask > blueMask) && (blueMask > greenMask)) b_o = RBG;
 618             else if ((blueMask > redMask) && (redMask > greenMask))  b_o = BRG;
 619             else if ((blueMask > greenMask) && (greenMask > redMask))b_o = BGR;
 620             else if ((greenMask > redMask) && (redMask > blueMask))  b_o = GRB;
 621             else if ((greenMask > blueMask) && (blueMask > redMask)) b_o = GBR;
 622         }
 623
 624         int r_mask = image.GetMaskRed();
 625         int g_mask = image.GetMaskGreen();
 626         int b_mask = image.GetMaskBlue();
 627
 628         unsigned char* data = image.GetData();
 629         wxASSERT_MSG( data, wxT("No image data") );
 630
 631         unsigned char *colorCube =
 632             wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_colorCube;
 633
 634         bool hasMask = image.HasMask();
 635
 636         int index = 0;
 637         for (int y = 0; y < height; y++)
 638         {
 639             for (int x = 0; x < width; x++)
 640             {
 641                 int r = data[index];
 642                 index++;
 643                 int g = data[index];
 644                 index++;
 645                 int b = data[index];
 646                 index++;
 647
 648                 if (hasMask)
 649                 {
 650                     if ((r == r_mask) && (b == b_mask) && (g == g_mask))
 651                         XPutPixel( mask_image, x, y, 0 );
 652                     else
 653                         XPutPixel( mask_image, x, y, 1 );
 654                 }
 655
 656                 switch (bpp)
 657                 {
 658                     case 8:
 659                     {
 660                         int pixel = 0;
 661                         pixel = colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
 662                         XPutPixel( data_image, x, y, pixel );
 663                         break;
 664                     }
 665                     case 12:  // SGI only
 666                     {
 667                         int pixel = 0;
 668                         switch (b_o)
 669                         {
 670                             case RGB: pixel = ((r & 0xf0) << 4) | (g & 0xf0) | ((b & 0xf0) >> 4); break;
 671                             case RBG: pixel = ((r & 0xf0) << 4) | (b & 0xf0) | ((g & 0xf0) >> 4); break;
 672                             case GRB: pixel = ((g & 0xf0) << 4) | (r & 0xf0) | ((b & 0xf0) >> 4); break;
 673                             case GBR: pixel = ((g & 0xf0) << 4) | (b & 0xf0) | ((r & 0xf0) >> 4); break;
 674                             case BRG: pixel = ((b & 0xf0) << 4) | (r & 0xf0) | ((g & 0xf0) >> 4); break;
 675                             case BGR: pixel = ((b & 0xf0) << 4) | (g & 0xf0) | ((r & 0xf0) >> 4); break;
 676                         }
 677                         XPutPixel( data_image, x, y, pixel );
 678                         break;
 679                     }
 680                     case 15:
 681                     {
 682                         int pixel = 0;
 683                         switch (b_o)
 684                         {
 685                             case RGB: pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
 686                             case RBG: pixel = ((r & 0xf8) << 7) | ((b & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
 687                             case GRB: pixel = ((g & 0xf8) << 7) | ((r & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
 688                             case GBR: pixel = ((g & 0xf8) << 7) | ((b & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
 689                             case BRG: pixel = ((b & 0xf8) << 7) | ((r & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
 690                             case BGR: pixel = ((b & 0xf8) << 7) | ((g & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
 691                         }
 692                         XPutPixel( data_image, x, y, pixel );
 693                         break;
 694                     }
 695                     case 16:
 696                     {
 697                         // I actually don't know if for 16-bit displays, it is alway the green
 698                         // component or the second component which has 6 bits.
 699                         int pixel = 0;
 700                         switch (b_o)
 701                         {
 702                             case RGB: pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
 703                             case RBG: pixel = ((r & 0xf8) << 8) | ((b & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
 704                             case GRB: pixel = ((g & 0xf8) << 8) | ((r & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
 705                             case GBR: pixel = ((g & 0xf8) << 8) | ((b & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
 706                             case BRG: pixel = ((b & 0xf8) << 8) | ((r & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
 707                             case BGR: pixel = ((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
 708                         }
 709                         XPutPixel( data_image, x, y, pixel );
 710                         break;
 711                     }
 712                     case 32:
 713                     case 24:
 714                     {
 715                         int pixel = 0;
 716                         switch (b_o)
 717                         {
 718                             case RGB: pixel = (r << 16) | (g << 8) | b; break;
 719                             case RBG: pixel = (r << 16) | (b << 8) | g; break;
 720                             case BRG: pixel = (b << 16) | (r << 8) | g; break;
 721                             case BGR: pixel = (b << 16) | (g << 8) | r; break;
 722                             case GRB: pixel = (g << 16) | (r << 8) | b; break;
 723                             case GBR: pixel = (g << 16) | (b << 8) | r; break;
 724                         }
 725                         XPutPixel( data_image, x, y, pixel );
 726                     }
 727                     default: break;
 728                 }
 729             } // for
 730         }  // for
 731
 732         // Blit picture
 733
 734         GC gc = XCreateGC( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, 0, NULL );
 735         XPutImage( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, gc, data_image, 0, 0, 0, 0, width, height );
 736         XDestroyImage( data_image );
 737         XFreeGC( xdisplay, gc );
 738
 739         // Blit mask
 740
 741         if (image.HasMask())
 742         {
 743             GC gc = XCreateGC( xdisplay, (Pixmap) GetMask()->GetBitmap(), 0, NULL );
 744             XPutImage( xdisplay, (Pixmap) GetMask()->GetBitmap(), gc, mask_image, 0, 0, 0, 0, width, height );
 745
 746             XDestroyImage( mask_image );
 747             XFreeGC( xdisplay, gc );
 748         }
 749     }
 750
 751     return true;
 752 #endif
 753     // wxUSE_NANOX
 754 }
 755
 756 wxImage wxBitmap::ConvertToImage() const
 757 {
 758     wxImage image;
 759
 760     wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
 761
 762     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 763     wxASSERT_MSG( xdisplay, wxT("No display") );
 764
 765 #if wxUSE_NANOX
 766     //int bpp = DefaultDepth(xdisplay, xscreen);
 767     wxGetImageFromDrawable((Pixmap) GetPixmap(), 0, 0, GetWidth(), GetHeight(), image);
 768     return image;
 769 #else
 770     // !wxUSE_NANOX
 771     int bpp = wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_visualDepth;
 772     XImage *x_image = NULL;
 773     if (GetPixmap())
 774     {
 775         x_image = XGetImage( xdisplay, (Pixmap) GetPixmap(),
 776             0, 0,
 777             GetWidth(), GetHeight(),
 778             AllPlanes, ZPixmap );
 779     } else
 780     if (GetBitmap())
 781     {
 782         x_image = XGetImage( xdisplay, (Pixmap) GetBitmap(),
 783             0, 0,
 784             GetWidth(), GetHeight(),
 785             AllPlanes, ZPixmap );
 786     } else
 787     {
 788         wxFAIL_MSG( wxT("Ill-formed bitmap") );
 789     }
 790
 791     wxCHECK_MSG( x_image, wxNullImage, wxT("couldn't create image") );
 792
 793     image.Create( GetWidth(), GetHeight() );
 794     char unsigned *data = image.GetData();
 795
 796     if (!data)
 797     {
 798         XDestroyImage( x_image );
 799         wxFAIL_MSG( wxT("couldn't create image") );
 800         return wxNullImage;
 801     }
 802
 803     XImage *x_image_mask = NULL;
 804     if (GetMask())
 805     {
 806         x_image_mask = XGetImage( xdisplay, (Pixmap) GetMask()->GetBitmap(),
 807             0, 0,
 808             GetWidth(), GetHeight(),
 809             AllPlanes, ZPixmap );
 810
 811         image.SetMaskColour( 16, 16, 16 );  // anything unlikely and dividable
 812     }
 813
 814     int red_shift_right = 0;
 815     int green_shift_right = 0;
 816     int blue_shift_right = 0;
 817     int red_shift_left = 0;
 818     int green_shift_left = 0;
 819     int blue_shift_left = 0;
 820     bool use_shift = false;
 821
 822     if (GetPixmap())
 823     {
 824         wxXVisualInfo* vi = wxTheApp->GetVisualInfo(M_BMPDATA->m_display);
 825
 826         red_shift_right = vi->m_visualRedShift;
 827         red_shift_left = 8 - vi->m_visualRedPrec;
 828         green_shift_right = vi->m_visualGreenShift;
 829         green_shift_left = 8 - vi->m_visualGreenPrec;
 830         blue_shift_right = vi->m_visualBlueShift;
 831         blue_shift_left = 8 - vi->m_visualBluePrec;
 832
 833         use_shift = (vi->m_visualType == GrayScale) ||
 834                     (vi->m_visualType != PseudoColor);
 835     }
 836
 837     if (GetBitmap())
 838     {
 839         bpp = 1;
 840     }
 841
 842     XColor *colors = (XColor*)wxTheApp->
 843         GetVisualInfo(M_BMPDATA->m_display)->m_visualColormap;
 844
 845     int width = GetWidth();
 846     int height = GetHeight();
 847     long pos = 0;
 848     for (int j = 0; j < height; j++)
 849     {
 850         for (int i = 0; i < width; i++)
 851         {
 852             unsigned long pixel = XGetPixel( x_image, i, j );
 853             if (bpp == 1)
 854             {
 855                 if (pixel == 0)
 856                 {
 857                     data[pos]   = 0;
 858                     data[pos+1] = 0;
 859                     data[pos+2] = 0;
 860                 }
 861                 else
 862                 {
 863                     data[pos]   = 255;
 864                     data[pos+1] = 255;
 865                     data[pos+2] = 255;
 866                 }
 867             }
 868             else if (use_shift)
 869             {
 870                 data[pos] =   (unsigned char)((pixel >> red_shift_right)   << red_shift_left);
 871                 data[pos+1] = (unsigned char)((pixel >> green_shift_right) << green_shift_left);
 872                 data[pos+2] = (unsigned char)((pixel >> blue_shift_right)  << blue_shift_left);
 873             }
 874             else if (colors)
 875             {
 876                 data[pos] =   (unsigned char)(colors[pixel].red   >> 8);
 877                 data[pos+1] = (unsigned char)(colors[pixel].green >> 8);
 878                 data[pos+2] = (unsigned char)(colors[pixel].blue  >> 8);
 879             }
 880             else
 881             {
 882                 wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") );
 883             }
 884
 885             if (x_image_mask)
 886             {
 887                 int mask_pixel = XGetPixel( x_image_mask, i, j );
 888                 if (mask_pixel == 0)
 889                 {
 890                     data[pos] = 16;
 891                     data[pos+1] = 16;
 892                     data[pos+2] = 16;
 893                 }
 894             }
 895
 896             pos += 3;
 897         }
 898     }
 899
 900     XDestroyImage( x_image );
 901     if (x_image_mask) XDestroyImage( x_image_mask );
 902     return image;
 903 #endif
 904     // wxUSE_NANOX
 905 }
 906
 907 wxBitmap::wxBitmap( const wxString &filename, wxBitmapType type )
 908 {
 909     LoadFile( filename, type );
 910 }
 911
 912 wxBitmap::wxBitmap( const char bits[], int width, int height, int depth )
 913 {
 914     m_refData = new wxBitmapRefData;
 915
 916     (void) Create((void*) bits, wxBITMAP_TYPE_XBM_DATA, width, height, depth);
 917 }
 918
 919 wxBitmap::~wxBitmap()
 920 {
 921 }
 922
 923 bool wxBitmap::operator == ( const wxBitmap& bmp ) const
 924 {
 925     return m_refData == bmp.m_refData;
 926 }
 927
 928 bool wxBitmap::operator != ( const wxBitmap& bmp ) const
 929 {
 930     return m_refData != bmp.m_refData;
 931 }
 932
 933 bool wxBitmap::Ok() const
 934 {
 935     return (m_refData != NULL);
 936 }
 937
 938 int wxBitmap::GetHeight() const
 939 {
 940     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 941
 942     return M_BMPDATA->m_height;
 943 }
 944
 945 int wxBitmap::GetWidth() const
 946 {
 947     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 948
 949     return M_BMPDATA->m_width;
 950 }
 951
 952 int wxBitmap::GetDepth() const
 953 {
 954     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 955
 956     return M_BMPDATA->m_bpp;
 957 }
 958
 959 wxMask *wxBitmap::GetMask() const
 960 {
 961     wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
 962
 963     return M_BMPDATA->m_mask;
 964 }
 965
 966 void wxBitmap::SetMask( wxMask *mask )
 967 {
 968     wxCHECK_RET( Ok(), wxT("invalid bitmap") );
 969
 970     if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
 971
 972     M_BMPDATA->m_mask = mask;
 973 }
 974
 975 bool wxBitmap::CopyFromIcon(const wxIcon& icon)
 976 {
 977     *this = icon;
 978     return true;
 979 }
 980
 981 wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
 982 {
 983     wxCHECK_MSG( Ok() &&
 984                  (rect.x >= 0) && (rect.y >= 0) &&
 985                  (rect.x+rect.width  <= M_BMPDATA->m_width ) &&
 986                  (rect.y+rect.height <= M_BMPDATA->m_height),
 987                  wxNullBitmap, wxT("invalid bitmap or bitmap region") );
 988
 989     wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
 990     wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
 991
 992     if( GetMask() )
 993     {
 994         wxMask* mask = new wxMask();
 995         mask->SetDisplay( GetMask()->GetDisplay() );
 996         mask->SetBitmap( wxGetSubPixmap( GetMask()->GetDisplay(),
 997                                          GetMask()->GetBitmap(),
 998                                          rect.x, rect.y,
 999                                          rect.width, rect.height,
1000                                          1 ) );
1001
1002         ret.SetMask( mask );
1003     }
1004
1005     if( GetPixmap() )
1006     {
1007         ret.SetPixmap( wxGetSubPixmap( GetDisplay(),
1008                                        GetPixmap(),
1009                                        rect.x, rect.y,
1010                                        rect.width, rect.height,
1011                                        M_BMPDATA->m_bpp ) );
1012     }
1013
1014     if( GetBitmap() )
1015     {
1016         ret.SetBitmap( wxGetSubPixmap( GetDisplay(),
1017                                        GetBitmap(),
1018                                        rect.x, rect.y,
1019                                        rect.width, rect.height,
1020                                        1 ) );
1021     }
1022
1023     return ret;
1024 }
1025
1026 bool wxBitmap::SaveFile( const wxString &name, wxBitmapType type,
1027                          const wxPalette *palette ) const
1028 {
1029     wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") );
1030
1031     wxBitmapHandler *handler = FindHandler(type);
1032
1033     // Try to save the bitmap via wxImage handlers:
1034     if (handler == NULL)
1035     {
1036         wxImage image(this->ConvertToImage());
1037         if (image.Ok()) return image.SaveFile( name, type );
1038
1039         return false;
1040     }
1041
1042     return handler->SaveFile(this, name, type, palette);
1043 }
1044
1045 bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type )
1046 {
1047     UnRef();
1048
1049     if (!wxFileExists(name)) return false;
1050
1051     wxBitmapHandler *handler = FindHandler(type);
1052
1053     if (handler == NULL)
1054     {
1055         wxImage image;
1056         if (!image.LoadFile( name, type ))
1057             return false;
1058
1059         if (image.Ok())
1060         {
1061             *this = wxBitmap(image);
1062             return true;
1063         }
1064         else return false;
1065     }
1066
1067     return handler->LoadFile(this, name, type, -1, -1);
1068 }
1069
1070 void wxBitmap::SetPalette(const wxPalette& palette)
1071 {
1072     wxCHECK_RET(Ok(), wxT("invalid bitmap"));
1073     wxCHECK_RET(GetDepth() > 1 && GetDepth() <= 8,
1074                 wxT("cannot set palette for bitmap of this depth"));
1075
1076     delete M_BMPDATA->m_palette;
1077     M_BMPDATA->m_palette = NULL;
1078
1079     if (!palette.Ok()) return;
1080
1081     M_BMPDATA->m_palette = new wxPalette(palette);
1082 }
1083
1084 wxPalette *wxBitmap::GetPalette() const
1085 {
1086     if (!Ok()) return (wxPalette *) NULL;
1087
1088     return M_BMPDATA->m_palette;
1089 }
1090
1091 void wxBitmap::SetHeight( int height )
1092 {
1093     if (!m_refData) m_refData = new wxBitmapRefData();
1094
1095     M_BMPDATA->m_height = height;
1096 }
1097
1098 void wxBitmap::SetWidth( int width )
1099 {
1100     if (!m_refData) m_refData = new wxBitmapRefData();
1101
1102     M_BMPDATA->m_width = width;
1103 }
1104
1105 void wxBitmap::SetDepth( int depth )
1106 {
1107     if (!m_refData) m_refData = new wxBitmapRefData();
1108
1109     M_BMPDATA->m_bpp = depth;
1110 }
1111
1112 void wxBitmap::SetPixmap( WXPixmap pixmap )
1113 {
1114     if (!m_refData) m_refData = new wxBitmapRefData();
1115
1116     M_BMPDATA->m_pixmap = pixmap;
1117 }
1118
1119 void wxBitmap::SetBitmap( WXPixmap bitmap )
1120 {
1121     if (!m_refData) m_refData = new wxBitmapRefData();
1122
1123     M_BMPDATA->m_bitmap = bitmap;
1124 }
1125
1126 WXPixmap wxBitmap::GetPixmap() const
1127 {
1128     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1129
1130     return M_BMPDATA->m_pixmap;
1131 }
1132
1133 WXPixmap wxBitmap::GetBitmap() const
1134 {
1135     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1136
1137     return M_BMPDATA->m_bitmap;
1138 }
1139
1140 WXPixmap wxBitmap::GetDrawable() const
1141 {
1142     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1143
1144     return M_BMPDATA->m_bpp == 1 ? M_BMPDATA->m_bitmap : M_BMPDATA->m_pixmap;
1145 }
1146
1147 WXDisplay *wxBitmap::GetDisplay() const
1148 {
1149     wxCHECK_MSG( Ok(), (WXDisplay*) NULL, wxT("invalid bitmap") );
1150
1151     return M_BMPDATA->m_display;
1152 }
1153
1154 #if wxUSE_NANOX
1155 // Copy from the drawable to the wxImage
1156 bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image)
1157 {
1158     GR_SCREEN_INFO sinfo;
1159     int x, y;
1160     GR_PIXELVAL *pixels;
1161     GR_PALETTE* palette = NULL;
1162     unsigned char rgb[3], *pp;
1163
1164     GrGetScreenInfo(&sinfo);
1165
1166     if (sinfo.pixtype == MWPF_PALETTE) {
1167         if(!(palette = (GR_PALETTE*) malloc(sizeof(GR_PALETTE)))) {
1168             return false;
1169         }
1170         GrGetSystemPalette(palette);
1171     }
1172
1173     if(!(pixels = (GR_PIXELVAL*) malloc(sizeof(GR_PIXELVAL) * width * height)))
1174     {
1175         return false;
1176     }
1177
1178     image.Create(width, height);
1179
1180     GrReadArea(drawable, srcX, srcY, width, height,
1181             pixels);
1182
1183
1184     for(x = 0; x < sinfo.cols; x++) {
1185
1186         pp = (unsigned char *)pixels +
1187             ((x + (y * sinfo.cols)) *
1188              sizeof(GR_PIXELVAL));
1189
1190         switch(sinfo.pixtype) {
1191             /* FIXME: These may need modifying on big endian. */
1192             case MWPF_TRUECOLOR0888:
1193             case MWPF_TRUECOLOR888:
1194                 rgb[0] = pp[2];
1195                 rgb[1] = pp[1];
1196                 rgb[2] = pp[0];
1197                 break;
1198             case MWPF_PALETTE:
1199                 rgb[0] = palette->palette[pp[0]].r;
1200                 rgb[1] = palette->palette[pp[0]].g;
1201                 rgb[2] = palette->palette[pp[0]].b;
1202                 break;
1203             case MWPF_TRUECOLOR565:
1204                 rgb[0] = pp[1] & 0xf8;
1205                 rgb[1] = ((pp[1] & 0x07) << 5) |
1206                     ((pp[0] & 0xe0) >> 3);
1207                 rgb[2] = (pp[0] & 0x1f) << 3;
1208                 break;
1209             case MWPF_TRUECOLOR555:
1210                 rgb[0] = (pp[1] & 0x7c) << 1;
1211                 rgb[1] = ((pp[1] & 0x03) << 6) |
1212                     ((pp[0] & 0xe0) >> 2);
1213                 rgb[2] = (pp[0] & 0x1f) << 3;
1214                 break;
1215             case MWPF_TRUECOLOR332:
1216                 rgb[0] = pp[0] & 0xe0;
1217                 rgb[1] = (pp[0] & 0x1c) << 3;
1218                 rgb[2] = (pp[0] & 0x03) << 6;
1219                 break;
1220             default:
1221                 fprintf(stderr, "Unsupported pixel "
1222                         "format\n");
1223                 return 1;
1224         }
1225
1226         image.SetRGB(x, y, rgb[0], rgb[1], rgb[2]);
1227
1228     }
1229
1230     free(pixels);
1231     if(palette) free(palette);
1232
1233     return true;
1234 }
1235
1236 #if 0
1237 int GrGetPixelColor(GR_SCREEN_INFO* sinfo, GR_PALETTE* palette, GR_PIXELVAL pixel,
1238     unsigned char* red, unsigned char* green, unsigned char* blue)
1239 {
1240     unsigned char rgb[3], *pp;
1241
1242     pp = (unsigned char*) & pixel ;
1243
1244     switch (sinfo.pixtype)
1245     {
1246         /* FIXME: These may need modifying on big endian. */
1247         case MWPF_TRUECOLOR0888:
1248         case MWPF_TRUECOLOR888:
1249             rgb[0] = pp[2];
1250             rgb[1] = pp[1];
1251             rgb[2] = pp[0];
1252             break;
1253         case MWPF_PALETTE:
1254             rgb[0] = palette->palette[pp[0]].r;
1255             rgb[1] = palette->palette[pp[0]].g;
1256             rgb[2] = palette->palette[pp[0]].b;
1257             break;
1258         case MWPF_TRUECOLOR565:
1259             rgb[0] = pp[1] & 0xf8;
1260             rgb[1] = ((pp[1] & 0x07) << 5) |
1261                 ((pp[0] & 0xe0) >> 3);
1262             rgb[2] = (pp[0] & 0x1f) << 3;
1263             break;
1264         case MWPF_TRUECOLOR555:
1265             rgb[0] = (pp[1] & 0x7c) << 1;
1266             rgb[1] = ((pp[1] & 0x03) << 6) |
1267                 ((pp[0] & 0xe0) >> 2);
1268             rgb[2] = (pp[0] & 0x1f) << 3;
1269             break;
1270         case MWPF_TRUECOLOR332:
1271             rgb[0] = pp[0] & 0xe0;
1272             rgb[1] = (pp[0] & 0x1c) << 3;
1273             rgb[2] = (pp[0] & 0x03) << 6;
1274             break;
1275         default:
1276             fprintf(stderr, "Unsupported pixel format\n");
1277             return 0;
1278     }
1279
1280
1281     *(red) = rgb[0];
1282     *(green) = rgb[1];
1283     *(blue) = rgb[2];
1284     return 1;
1285 }
1286 #endif
1287
1288 #endif
1289   // wxUSE_NANOX
1290
1291 // ============================================================================
1292 // Bitmap handlers
1293 // ============================================================================
1294
1295 IMPLEMENT_ABSTRACT_CLASS(wxBitmapHandler, wxBitmapHandlerBase)
1296
1297 #define M_BMPHANDLERDATA ((wxBitmapRefData *)bitmap->GetRefData())
1298
1299 #if wxUSE_XPM
1300
1301 #if wxHAVE_LIB_XPM || wxUSE_STREAMS
1302
1303 // ----------------------------------------------------------------------------
1304 // wxXPMFileHandler
1305 // ----------------------------------------------------------------------------
1306
1307 class wxXPMFileHandler : public wxBitmapHandler
1308 {
1309     DECLARE_DYNAMIC_CLASS(wxXPMFileHandler)
1310 public:
1311     wxXPMFileHandler()
1312     {
1313         SetName( wxT("XPM file") );
1314         SetExtension( wxT("xpm") );
1315         SetType( wxBITMAP_TYPE_XPM );
1316     };
1317
1318     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1319                           int desiredWidth, int desiredHeight);
1320
1321     virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name,
1322                           int type, const wxPalette *palette = NULL);
1323
1324     virtual bool Create(wxBitmap *WXUNUSED(bitmap), void *WXUNUSED(data), long WXUNUSED(flags),
1325                         int WXUNUSED(width), int WXUNUSED(height), int WXUNUSED(depth) = 1)
1326         { return false; }
1327 };
1328
1329 IMPLEMENT_DYNAMIC_CLASS(wxXPMFileHandler, wxBitmapHandler)
1330
1331 bool wxXPMFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name,
1332                                 long WXUNUSED(flags), int WXUNUSED(desiredWidth),
1333                                 int WXUNUSED(desiredHeight))
1334 {
1335 #if wxHAVE_LIB_XPM
1336     if (!bitmap->GetRefData())
1337         bitmap->SetRefData( new wxBitmapRefData() );
1338
1339     M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1340
1341     Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1342
1343     int xscreen = DefaultScreen( xdisplay );
1344     Window xroot = RootWindow( xdisplay, xscreen );
1345
1346     int bpp = DefaultDepth( xdisplay, xscreen );
1347
1348     XpmAttributes xpmAttr;
1349     xpmAttr.valuemask = XpmReturnInfos;    // nothing yet, but get infos back
1350
1351     Pixmap pixmap;
1352     Pixmap mask = 0;
1353
1354     int ErrorStatus = XpmReadFileToPixmap( xdisplay, xroot,
1355                                            (char*) name.c_str(),
1356                                            &pixmap, &mask, &xpmAttr);
1357
1358     if (ErrorStatus == XpmSuccess)
1359     {
1360         M_BMPHANDLERDATA->m_width = xpmAttr.width;
1361         M_BMPHANDLERDATA->m_height = xpmAttr.height;
1362
1363         M_BMPHANDLERDATA->m_bpp = bpp;  // mono as well?
1364
1365         XpmFreeAttributes(&xpmAttr);
1366
1367         M_BMPHANDLERDATA->m_bitmap = (WXPixmap) pixmap;
1368
1369         if (mask)
1370         {
1371             M_BMPHANDLERDATA->m_mask = new wxMask;
1372             M_BMPHANDLERDATA->m_mask->SetBitmap( (WXPixmap) mask );
1373             M_BMPHANDLERDATA->m_mask->SetDisplay( xdisplay );
1374         }
1375     }
1376     else
1377     {
1378         UnRef();
1379
1380         return false;
1381     }
1382
1383     return true;
1384 #elif wxUSE_STREAMS
1385     wxXPMDecoder decoder;
1386     wxFileInputStream stream(name);
1387     if (stream.Ok())
1388     {
1389         wxImage image(decoder.ReadFile(stream));
1390         return image.Ok() && bitmap->CreateFromImage(image);
1391     }
1392
1393     return false;
1394 #else // !wxHAVE_LIB_XPM && !wxUSE_STREAMS
1395     return false;
1396 #endif // wxHAVE_LIB_XPM / wxUSE_STREAMS
1397 }
1398
1399 bool wxXPMFileHandler::SaveFile(const wxBitmap *bitmap, const wxString& name,
1400                                 int type,
1401                                 const wxPalette *WXUNUSED(palette))
1402 {
1403     wxImage image(bitmap->ConvertToImage());
1404     if (image.Ok()) return image.SaveFile( name, (wxBitmapType)type );
1405
1406     return false;
1407 }
1408
1409 #endif // wxHAVE_LIB_XPM || wxUSE_STREAMS
1410
1411 // ----------------------------------------------------------------------------
1412 // wxXPMDataHandler
1413 // ----------------------------------------------------------------------------
1414
1415 class wxXPMDataHandler : public wxBitmapHandler
1416 {
1417     DECLARE_DYNAMIC_CLASS(wxXPMDataHandler)
1418 public:
1419     wxXPMDataHandler()
1420     {
1421         SetName( wxT("XPM data") );
1422         SetExtension( wxT("xpm") );
1423         SetType( wxBITMAP_TYPE_XPM_DATA );
1424     };
1425
1426     virtual bool LoadFile(wxBitmap *WXUNUSED(bitmap),
1427                           const wxString& WXUNUSED(name),
1428                           long WXUNUSED(flags),
1429                           int WXUNUSED(desiredWidth),
1430                           int WXUNUSED(desiredHeight))
1431         { return false; }
1432
1433     virtual bool SaveFile(const wxBitmap *WXUNUSED(bitmap),
1434                           const wxString& WXUNUSED(name),
1435                           int WXUNUSED(type),
1436                           const wxPalette *WXUNUSED(palette) = NULL)
1437         { return false; }
1438
1439     virtual bool Create(wxBitmap *bitmap, void *data, long flags,
1440                         int width, int height, int depth = 1);
1441 };
1442
1443 IMPLEMENT_DYNAMIC_CLASS(wxXPMDataHandler, wxBitmapHandler)
1444
1445 bool wxXPMDataHandler::Create(wxBitmap *bitmap, void *bits,
1446                               long WXUNUSED(flags),
1447                               int WXUNUSED(width), int WXUNUSED(height), int WXUNUSED(depth))
1448 {
1449 #if wxHAVE_LIB_XPM
1450     wxCHECK_MSG( bits != NULL, false, wxT("invalid bitmap data") );
1451
1452     if (!bitmap->GetRefData())
1453         bitmap->SetRefData( new wxBitmapRefData() );
1454
1455     M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1456
1457     Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1458
1459     int xscreen = DefaultScreen( xdisplay );
1460     Window xroot = RootWindow( xdisplay, xscreen );
1461
1462     int bpp = DefaultDepth( xdisplay, xscreen );
1463
1464     XpmAttributes xpmAttr;
1465     xpmAttr.valuemask = XpmReturnInfos;    // nothing yet, but get infos back
1466
1467     Pixmap pixmap = 0;
1468     Pixmap mask = 0;
1469
1470     int ErrorStatus = XpmCreatePixmapFromData( xdisplay, xroot, (char**) bits,
1471                                                &pixmap, &mask, &xpmAttr );
1472
1473     if (ErrorStatus == XpmSuccess)
1474     {
1475         M_BMPHANDLERDATA->m_width = xpmAttr.width;
1476         M_BMPHANDLERDATA->m_height = xpmAttr.height;
1477
1478         M_BMPHANDLERDATA->m_bpp = bpp;  // mono as well?
1479
1480 #if __WXDEBUG__
1481         unsigned int depthRet;
1482         int xRet, yRet;
1483         unsigned int widthRet, heightRet, borderWidthRet;
1484         XGetGeometry( xdisplay, pixmap, &xroot, &xRet, &yRet,
1485             &widthRet, &heightRet, &borderWidthRet, &depthRet);
1486
1487         wxASSERT_MSG( bpp == (int)depthRet, wxT("colour depth mismatch") );
1488 #endif
1489
1490         XpmFreeAttributes(&xpmAttr);
1491
1492         M_BMPHANDLERDATA->m_pixmap = (WXPixmap) pixmap;
1493
1494         if (mask)
1495         {
1496             M_BMPHANDLERDATA->m_mask = new wxMask;
1497             M_BMPHANDLERDATA->m_mask->SetBitmap( (WXPixmap) mask );
1498             M_BMPHANDLERDATA->m_mask->SetDisplay( xdisplay );
1499         }
1500         return true;
1501     }
1502     else
1503     {
1504         bitmap->UnRef();
1505
1506         return false;
1507     }
1508 #else // !wxHAVE_LIB_XPM
1509     wxXPMDecoder decoder;
1510     wxImage image(decoder.ReadData((const char **)bits));
1511     return image.Ok() && bitmap->CreateFromImage(image);
1512 #endif // wxHAVE_LIB_XPM/!wxHAVE_LIB_XPM
1513 }
1514
1515 #endif // wxUSE_XPM
1516
1517 // ----------------------------------------------------------------------------
1518 // wxXBMDataHandler
1519 // ----------------------------------------------------------------------------
1520
1521 class WXDLLEXPORT wxXBMDataHandler: public wxBitmapHandler
1522 {
1523     DECLARE_DYNAMIC_CLASS(wxXBMDataHandler)
1524 public:
1525     inline wxXBMDataHandler()
1526     {
1527         SetName( wxT("XBM data") );
1528         SetExtension( wxT("xbm") );
1529         SetType( wxBITMAP_TYPE_XBM_DATA );
1530     };
1531
1532     virtual bool LoadFile(wxBitmap *WXUNUSED(bitmap),
1533                           const wxString& WXUNUSED(name),
1534                           long WXUNUSED(flags),
1535                           int WXUNUSED(desiredWidth),
1536                           int WXUNUSED(desiredHeight))
1537         { return false; }
1538
1539     virtual bool SaveFile(const wxBitmap *WXUNUSED(bitmap),
1540                           const wxString& WXUNUSED(name),
1541                           int WXUNUSED(type),
1542                           const wxPalette *WXUNUSED(palette) = NULL)
1543         { return false; }
1544
1545     virtual bool Create(wxBitmap *bitmap, void *data, long flags,
1546                         int width, int height, int depth = 1);
1547 };
1548
1549 IMPLEMENT_DYNAMIC_CLASS(wxXBMDataHandler, wxBitmapHandler)
1550
1551 bool wxXBMDataHandler::Create( wxBitmap *bitmap, void *bits,
1552                                long WXUNUSED(flags),
1553                                int width, int height, int WXUNUSED(depth))
1554 {
1555 #if !wxUSE_NANOX
1556     if (!bitmap->GetRefData())
1557         bitmap->SetRefData( new wxBitmapRefData() );
1558
1559     M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1560
1561     Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1562
1563     int xscreen = DefaultScreen( xdisplay );
1564     Window xroot = RootWindow( xdisplay, xscreen );
1565
1566     M_BMPHANDLERDATA->m_mask = (wxMask *) NULL;
1567     M_BMPHANDLERDATA->m_bitmap =
1568         (WXPixmap) XCreateBitmapFromData( xdisplay, xroot,
1569                                           (char *) bits, width, height );
1570     M_BMPHANDLERDATA->m_width = width;
1571     M_BMPHANDLERDATA->m_height = height;
1572     M_BMPHANDLERDATA->m_bpp = 1;
1573
1574     return true;
1575 #else
1576    wxCHECK_MSG( M_BMPHANDLERDATA->m_bitmap, false,
1577                  wxT("couldn't create bitmap") );
1578 #endif
1579 }
1580
1581 void wxBitmap::InitStandardHandlers()
1582 {
1583     AddHandler(new wxXBMDataHandler);
1584 #if wxUSE_XPM
1585 #if wxHAVE_LIB_XPM || wxUSE_STREAMS
1586     AddHandler(new wxXPMFileHandler);
1587 #endif
1588     AddHandler(new wxXPMDataHandler);
1589 #endif
1590 }