src/x11/bitmap.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/x11/bitmap.cpp
   3 // Purpose:     wxBitmap
   4 // Author:      Julian Smart, Robert Roebling
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart, Robert Roebling
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // for compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #include "wx/bitmap.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/log.h"
  19     #include "wx/app.h"
  20     #include "wx/dcmemory.h"
  21     #include "wx/icon.h"
  22     #include "wx/math.h"
  23     #include "wx/image.h"
  24 #endif
  25
  26 #include "wx/x11/private.h"
  27
  28 /* No point in using libXPM for NanoX */
  29 #if wxUSE_NANOX
  30 #undef wxHAVE_LIB_XPM
  31 #define wxHAVE_LIB_XPM 0
  32
  33 // Copy from the drawable to the wxImage
  34 bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image);
  35 #endif
  36
  37 static WXPixmap wxGetSubPixmap( WXDisplay* xdisplay, WXPixmap xpixmap,
  38                                 int x, int y, int width, int height,
  39                                 int depth );
  40
  41 #if wxUSE_XPM
  42 #if wxHAVE_LIB_XPM
  43 #include <X11/xpm.h>
  44 #else
  45 #include "wx/xpmdecod.h"
  46 #include "wx/wfstream.h"
  47 #endif
  48 #endif
  49
  50 //-----------------------------------------------------------------------------
  51 // wxMask
  52 //-----------------------------------------------------------------------------
  53
  54 IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject)
  55
  56 wxMask::wxMask()
  57 {
  58     m_bitmap = NULL;
  59     m_display = NULL;
  60 }
  61
  62 wxMask::wxMask(const wxMask& mask)
  63 {
  64     m_display = mask.m_display;
  65     if ( !mask.m_bitmap )
  66     {
  67         m_bitmap = NULL;
  68         return;
  69     }
  70
  71     m_size = mask.m_size;
  72
  73     // Duplicate the mask bitmap using the existing wxGetSubPixmap() function.
  74     // There are probably/surely better ways to do it.
  75     m_bitmap = wxGetSubPixmap(m_display, mask.m_bitmap,
  76                               0, 0, m_size.x, m_size.y,
  77                               1);
  78 }
  79
  80 wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
  81 {
  82     m_bitmap = NULL;
  83     Create( bitmap, colour );
  84 }
  85
  86 wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
  87 {
  88     m_bitmap = NULL;
  89     Create( bitmap, paletteIndex );
  90 }
  91
  92 wxMask::wxMask( const wxBitmap& bitmap )
  93 {
  94     m_bitmap = NULL;
  95     Create( bitmap );
  96 }
  97
  98 wxMask::~wxMask()
  99 {
 100     if (m_bitmap)
 101         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
 102 }
 103
 104 bool wxMask::Create( const wxBitmap& bitmap,
 105                      const wxColour& colour )
 106 {
 107     m_size = bitmap.GetSize();
 108
 109 #if !wxUSE_NANOX
 110     if (m_bitmap)
 111     {
 112         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
 113         m_bitmap = NULL;
 114     }
 115
 116     m_display = bitmap.GetDisplay();
 117
 118     wxImage image = bitmap.ConvertToImage();
 119     if (!image.Ok()) return false;
 120
 121     m_display = bitmap.GetDisplay();
 122
 123     Display *xdisplay = (Display*) m_display;
 124     int xscreen = DefaultScreen( xdisplay );
 125     Window xroot = RootWindow( xdisplay, xscreen );
 126
 127     m_bitmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, image.GetWidth(), image.GetHeight(), 1 );
 128     GC gc = XCreateGC( xdisplay, (Pixmap) m_bitmap, 0, NULL );
 129
 130     XSetForeground( xdisplay, gc, WhitePixel(xdisplay,xscreen) );
 131     XSetFillStyle( xdisplay, gc, FillSolid );
 132     XFillRectangle( xdisplay, (Pixmap) m_bitmap, gc, 0, 0, image.GetWidth(), image.GetHeight() );
 133
 134     unsigned char *data = image.GetData();
 135     int index = 0;
 136
 137     unsigned char red = colour.Red();
 138     unsigned char green = colour.Green();
 139     unsigned char blue = colour.Blue();
 140
 141     int bpp = wxTheApp->GetVisualInfo(m_display)->m_visualDepth;
 142
 143     if (bpp == 15)
 144     {
 145         red &= 0xf8;
 146         green &= 0xf8;
 147         blue &= 0xf8;
 148     } else
 149     if (bpp == 16)
 150     {
 151         red &= 0xf8;
 152         green &= 0xfc;
 153         blue &= 0xf8;
 154     } else
 155     if (bpp == 12)
 156     {
 157         red &= 0xf0;
 158         green &= 0xf0;
 159         blue &= 0xf0;
 160     }
 161
 162     XSetForeground( xdisplay, gc, BlackPixel(xdisplay,xscreen) );
 163
 164     int width = image.GetWidth();
 165     int height = image.GetHeight();
 166     for (int j = 0; j < height; j++)
 167     {
 168         int start_x = -1;
 169         int i;
 170         for (i = 0; i < width; i++)
 171         {
 172             if ((data[index] == red) &&
 173                 (data[index+1] == green) &&
 174                 (data[index+2] == blue))
 175             {
 176                 if (start_x == -1)
 177                 start_x = i;
 178             }
 179             else
 180             {
 181                 if (start_x != -1)
 182                 {
 183                     XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i-1, j );
 184                     start_x = -1;
 185                 }
 186             }
 187             index += 3;
 188         }
 189         if (start_x != -1)
 190             XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i, j );
 191     }
 192
 193     XFreeGC( xdisplay, gc );
 194
 195     return true;
 196 #else
 197     return false;
 198 #endif
 199     // wxUSE_NANOX
 200 }
 201
 202 bool wxMask::Create( const wxBitmap& bitmap, int paletteIndex )
 203 {
 204     unsigned char r,g,b;
 205     wxPalette *pal = bitmap.GetPalette();
 206
 207     wxCHECK_MSG( pal, false, wxT("Cannot create mask from bitmap without palette") );
 208
 209     pal->GetRGB(paletteIndex, &r, &g, &b);
 210
 211     return Create(bitmap, wxColour(r, g, b));
 212 }
 213
 214 bool wxMask::Create( const wxBitmap& bitmap )
 215 {
 216 #if !wxUSE_NANOX
 217     if (m_bitmap)
 218     {
 219         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
 220         m_bitmap = NULL;
 221     }
 222
 223     if (!bitmap.Ok()) return false;
 224
 225     wxCHECK_MSG( bitmap.GetBitmap(), false, wxT("Cannot create mask from colour bitmap") );
 226
 227     m_display = bitmap.GetDisplay();
 228
 229     int xscreen = DefaultScreen( (Display*) m_display );
 230     Window xroot = RootWindow( (Display*) m_display, xscreen );
 231
 232     m_bitmap = (WXPixmap) XCreatePixmap( (Display*) m_display, xroot, bitmap.GetWidth(), bitmap.GetHeight(), 1 );
 233
 234     if (!m_bitmap) return false;
 235
 236     GC gc = XCreateGC( (Display*) m_display, (Pixmap) m_bitmap, 0, NULL );
 237
 238     XCopyPlane( (Display*) m_display, (Pixmap) bitmap.GetBitmap(), (Pixmap) m_bitmap,
 239        gc, 0, 0, bitmap.GetWidth(), bitmap.GetHeight(), 0, 0, 1 );
 240
 241     XFreeGC( (Display*) m_display, gc );
 242
 243     return true;
 244 #else
 245     return false;
 246 #endif
 247     // wxUSE_NANOX
 248 }
 249
 250 //-----------------------------------------------------------------------------
 251 // wxBitmapRefData
 252 //-----------------------------------------------------------------------------
 253
 254 class wxBitmapRefData : public wxGDIRefData
 255 {
 256 public:
 257     wxBitmapRefData();
 258     wxBitmapRefData(const wxBitmapRefData& data);
 259     virtual ~wxBitmapRefData();
 260
 261     // shouldn't be called more than once as it doesn't free the existing data
 262     bool Create(int width, int height, int depth);
 263
 264     virtual bool IsOk() const { return m_pixmap || m_bitmap; }
 265
 266     Pixmap          m_pixmap;
 267     Pixmap          m_bitmap;
 268     Display        *m_display;
 269     wxMask         *m_mask;
 270     int             m_width;
 271     int             m_height;
 272     int             m_bpp;
 273     wxPalette      *m_palette;
 274 };
 275
 276 wxBitmapRefData::wxBitmapRefData()
 277 {
 278     m_pixmap = 0;
 279     m_bitmap = 0;
 280     m_display = NULL;
 281     m_mask = NULL;
 282     m_width = 0;
 283     m_height = 0;
 284     m_bpp = 0;
 285     m_palette = NULL;
 286 }
 287
 288 wxBitmapRefData::wxBitmapRefData(const wxBitmapRefData& data)
 289 {
 290     m_pixmap = 0;
 291     m_bitmap = 0;
 292     m_display = data.m_display;
 293     m_mask = NULL; // FIXME: should copy
 294     m_palette = NULL; // FIXME: should copy
 295
 296     Create(data.m_width, data.m_height, data.m_bpp);
 297 }
 298
 299 bool wxBitmapRefData::Create(int width, int height, int depth)
 300 {
 301     m_width = width;
 302     m_height = height;
 303     m_bpp = depth;
 304
 305     m_display = wxGlobalDisplay();
 306
 307     wxCHECK_MSG( m_display, false, wxT("No display") );
 308
 309     int xscreen = DefaultScreen(m_display);
 310     int bpp = DefaultDepth(m_display, xscreen);
 311     if ( depth == -1 )
 312         depth = bpp;
 313
 314     wxCHECK_MSG( (depth == bpp) || (depth == 1), false,
 315                  wxT("invalid bitmap depth") );
 316
 317 #if wxUSE_NANOX
 318     m_pixmap = (WXPixmap) GrNewPixmap(width, height, NULL);
 319 #else // !wxUSE_NANOX
 320     Window xroot = RootWindow(m_display, xscreen);
 321
 322     *(depth == 1 ? &m_bitmap : &m_pixmap) =
 323         XCreatePixmap(m_display, xroot, width, height, depth);
 324 #endif // wxUSE_NANOX/!wxUSE_NANOX
 325
 326     wxCHECK_MSG( m_pixmap || m_bitmap, false, wxT("Bitmap creation failed") );
 327
 328     return true;
 329 }
 330
 331 wxBitmapRefData::~wxBitmapRefData()
 332 {
 333     if (m_pixmap)
 334        XFreePixmap(m_display, m_pixmap);
 335     if (m_bitmap)
 336        XFreePixmap(m_display, m_bitmap);
 337     delete m_mask;
 338     delete m_palette;
 339 }
 340
 341 //-----------------------------------------------------------------------------
 342
 343 // helper function
 344
 345 static WXPixmap wxGetSubPixmap( WXDisplay* xdisplay, WXPixmap xpixmap,
 346                                 int x, int y, int width, int height,
 347                                 int depth )
 348 {
 349     Display * const dpy = (Display *)xdisplay;
 350
 351     int xscreen = DefaultScreen( dpy );
 352     Window xroot = RootWindow( dpy, xscreen );
 353     Visual* xvisual = DefaultVisual( dpy, xscreen );
 354
 355     XImage* ximage = XCreateImage( dpy, xvisual, depth,
 356                                    ZPixmap, 0, 0, width, height, 32, 0 );
 357     ximage->data = (char*)malloc( ximage->bytes_per_line * ximage->height );
 358     ximage = XGetSubImage( dpy, (Pixmap)xpixmap,
 359                            x, y, width, height,
 360                            AllPlanes, ZPixmap, ximage, 0, 0 );
 361
 362     GC gc = XCreateGC( dpy, (Pixmap)xpixmap, 0, NULL );
 363     Pixmap ret = XCreatePixmap( dpy, xroot,
 364                                 width, height, depth );
 365
 366     XPutImage( dpy, ret, gc, ximage,
 367                0, 0, 0, 0, width, height );
 368     XDestroyImage( ximage );
 369     XFreeGC( dpy, gc );
 370
 371     return (WXPixmap)ret;
 372 }
 373
 374
 375 //-----------------------------------------------------------------------------
 376 // wxBitmap
 377 //-----------------------------------------------------------------------------
 378
 379 #define M_BMPDATA ((wxBitmapRefData *)m_refData)
 380
 381 IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
 382
 383 bool wxBitmap::Create( int width, int height, int depth )
 384 {
 385     UnRef();
 386
 387     wxCHECK_MSG( (width > 0) && (height > 0), false, wxT("invalid bitmap size") );
 388
 389     m_refData = new wxBitmapRefData();
 390
 391     return M_BMPDATA->Create(width, height, depth);
 392 }
 393
 394 bool wxBitmap::Create(const void* data, wxBitmapType type,
 395                       int width, int height, int depth)
 396 {
 397     UnRef();
 398
 399     wxBitmapHandler *handler = FindHandler(type);
 400
 401     if ( handler == NULL ) {
 402         wxLogWarning(wxT("no data bitmap handler for type %ld defined."),
 403                      (long)type);
 404
 405         return false;
 406     }
 407
 408     return handler->Create(this, data, type, width, height, depth);
 409 }
 410
 411 bool wxBitmap::Create(WXPixmap pixmap)
 412 {
 413     UnRef();
 414     Pixmap xpixmap = (Pixmap)pixmap;
 415     Display* xdisplay = wxGlobalDisplay();
 416     int xscreen = DefaultScreen( xdisplay );
 417     Window xroot = RootWindow( xdisplay, xscreen );
 418
 419     // make a copy of the Pixmap
 420     Window root;
 421     int x, y;
 422     unsigned width, height, border, depth;
 423
 424     XGetGeometry( xdisplay, (Drawable)xpixmap, &root, &x, &y,
 425                   &width, &height, &border, &depth );
 426     Pixmap copy = XCreatePixmap( xdisplay, xroot, width, height, depth );
 427
 428     GC gc = XCreateGC( xdisplay, copy, 0, NULL );
 429     XCopyArea( xdisplay, xpixmap, copy, gc, 0, 0, width, height, 0, 0 );
 430     XFreeGC( xdisplay, gc );
 431
 432     // fill in ref data
 433     wxBitmapRefData* ref = new wxBitmapRefData();
 434
 435     if( depth == 1 )
 436         ref->m_bitmap = copy;
 437     else
 438         ref->m_pixmap = copy;
 439
 440     ref->m_display = xdisplay;
 441     ref->m_width = width;
 442     ref->m_height = height;
 443     ref->m_bpp = depth;
 444
 445     m_refData = ref;
 446
 447     return true;
 448 }
 449
 450 wxBitmap::wxBitmap(const char* const* bits)
 451 {
 452     Create(bits, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0);
 453 }
 454
 455 wxGDIRefData *wxBitmap::CreateGDIRefData() const
 456 {
 457     return new wxBitmapRefData;
 458 }
 459
 460 wxGDIRefData *wxBitmap::CloneGDIRefData(const wxGDIRefData *data) const
 461 {
 462     return new wxBitmapRefData(*static_cast<const wxBitmapRefData *>(data));
 463 }
 464
 465 bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
 466 {
 467 #if wxUSE_NANOX
 468     if (!image.Ok())
 469     {
 470         wxASSERT_MSG(image.Ok(), wxT("Invalid wxImage passed to wxBitmap::CreateFromImage."));
 471         return false;
 472     }
 473
 474     int w = image.GetWidth();
 475     int h = image.GetHeight();
 476
 477     if (!Create(w, h, depth))
 478         return false;
 479
 480     // Unfortunately the mask has to be screen-depth since
 481     // 1-bpp bitmaps don't seem to be supported
 482     // TODO: implement transparent drawing, presumably
 483     // by doing several blits as per the Windows
 484     // implementation because Nano-X doesn't support
 485     // XSetClipMask.
 486     // TODO: could perhaps speed this function up
 487     // by making a buffer of pixel values,
 488     // and then calling GrArea to write that to the
 489     // pixmap. See demos/nxroach.c.
 490
 491     bool hasMask = image.HasMask();
 492
 493     GC pixmapGC = GrNewGC();
 494     Pixmap pixmap = (Pixmap) GetPixmap();
 495
 496     GC maskGC = 0;
 497     Pixmap maskPixmap = 0;
 498
 499     unsigned char maskR = 0;
 500     unsigned char maskG = 0;
 501     unsigned char maskB = 0;
 502
 503     if (hasMask)
 504     {
 505         maskR = image.GetMaskRed();
 506         maskG = image.GetMaskGreen();
 507         maskB = image.GetMaskBlue();
 508
 509         maskGC = GrNewGC();
 510         maskPixmap = GrNewPixmap(w, h, 0);
 511         if (!maskPixmap)
 512             hasMask = false;
 513         else
 514         {
 515             wxMask* mask = new wxMask;
 516             mask->SetBitmap((WXPixmap) maskPixmap);
 517             SetMask(mask);
 518         }
 519     }
 520
 521     GR_COLOR lastPixmapColour = 0;
 522     GR_COLOR lastMaskColour = 0;
 523
 524     int i, j;
 525     for (i = 0; i < w; i++)
 526     {
 527         for (j = 0; j < h; j++)
 528         {
 529             unsigned char red = image.GetRed(i, j);
 530             unsigned char green = image.GetGreen(i, j);
 531             unsigned char blue = image.GetBlue(i, j);
 532
 533             GR_COLOR colour = GR_RGB(red, green, blue);
 534
 535             // Efficiency measure
 536             if (colour != lastPixmapColour || (i == 0 && j == 0))
 537             {
 538                 GrSetGCForeground(pixmapGC, colour);
 539                 lastPixmapColour = colour;
 540             }
 541
 542             GrPoint(pixmap, pixmapGC, i, j);
 543
 544             if (hasMask)
 545             {
 546                 // scan the bitmap for the transparent colour and set the corresponding
 547                 // pixels in the mask to BLACK and the rest to WHITE
 548                 if (maskR == red && maskG == green && maskB == blue)
 549                 {
 550                     colour = GR_RGB(0, 0, 0);
 551                 }
 552                 else
 553                 {
 554                     colour = GR_RGB(255, 255, 255);
 555                 }
 556                 if (colour != lastMaskColour || (i == 0 && j == 0))
 557                 {
 558                     GrSetGCForeground(maskGC, colour);
 559                     lastMaskColour = colour;
 560                 }
 561                 GrPoint(maskPixmap, maskGC, i, j);
 562             }
 563         }
 564     }
 565
 566     GrDestroyGC(pixmapGC);
 567     if (hasMask)
 568         GrDestroyGC(maskGC);
 569
 570     return true;
 571 #else
 572     // !wxUSE_NANOX
 573
 574     UnRef();
 575
 576     wxCHECK_MSG( image.Ok(), false, wxT("invalid image") );
 577     wxCHECK_MSG( depth == -1, false, wxT("invalid bitmap depth") );
 578
 579     m_refData = new wxBitmapRefData();
 580
 581     M_BMPDATA->m_display = wxGlobalDisplay();
 582
 583     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 584
 585     int xscreen = DefaultScreen( xdisplay );
 586     Window xroot = RootWindow( xdisplay, xscreen );
 587     Visual* xvisual = DefaultVisual( xdisplay, xscreen );
 588
 589     int bpp = wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_visualDepth;
 590
 591     int width = image.GetWidth();
 592     int height = image.GetHeight();
 593     M_BMPDATA->m_width = width;
 594     M_BMPDATA->m_height = height;
 595
 596     if (depth != 1) depth = bpp;
 597     M_BMPDATA->m_bpp = depth;
 598
 599     if (depth == 1)
 600     {
 601         wxFAIL_MSG( wxT("mono images later") );
 602     }
 603     else
 604     {
 605         // Create image
 606
 607         XImage *data_image = XCreateImage( xdisplay, xvisual, bpp, ZPixmap, 0, 0, width, height, 32, 0 );
 608         data_image->data = (char*) malloc( data_image->bytes_per_line * data_image->height );
 609
 610         if (data_image->data == NULL)
 611         {
 612             wxLogError( wxT("Out of memory.") );  // TODO clean
 613             return false;
 614         }
 615
 616         M_BMPDATA->m_pixmap = XCreatePixmap( xdisplay, xroot, width, height, depth );
 617
 618         // Create mask if necessary
 619         const bool hasMask = image.HasMask();
 620
 621         XImage *mask_image = NULL;
 622         if ( hasMask )
 623         {
 624             mask_image = XCreateImage( xdisplay, xvisual, 1, ZPixmap, 0, 0, width, height, 32, 0 );
 625             mask_image->data = (char*) malloc( mask_image->bytes_per_line * mask_image->height );
 626
 627             if (mask_image->data == NULL)
 628             {
 629                 wxLogError( wxT("Out of memory.") ); // TODO clean
 630                 return false;
 631             }
 632
 633             wxMask *mask = new wxMask();
 634             mask->SetDisplay( xdisplay );
 635             mask->SetBitmap( (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, 1 ) );
 636
 637             SetMask( mask );
 638         }
 639
 640         if (bpp < 8) bpp = 8;
 641
 642         // Render
 643
 644         enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR };
 645         byte_order b_o = RGB;
 646
 647         wxXVisualInfo* vi = wxTheApp->GetVisualInfo(M_BMPDATA->m_display);
 648         unsigned long greenMask = vi->m_visualGreenMask,
 649                       redMask   = vi->m_visualRedMask,
 650                       blueMask  = vi->m_visualBlueMask;
 651
 652         if (bpp > 8)
 653         {
 654             if ((redMask > greenMask) && (greenMask > blueMask))     b_o = RGB;
 655             else if ((redMask > blueMask) && (blueMask > greenMask)) b_o = RBG;
 656             else if ((blueMask > redMask) && (redMask > greenMask))  b_o = BRG;
 657             else if ((blueMask > greenMask) && (greenMask > redMask))b_o = BGR;
 658             else if ((greenMask > redMask) && (redMask > blueMask))  b_o = GRB;
 659             else if ((greenMask > blueMask) && (blueMask > redMask)) b_o = GBR;
 660         }
 661
 662         int r_mask = image.GetMaskRed();
 663         int g_mask = image.GetMaskGreen();
 664         int b_mask = image.GetMaskBlue();
 665
 666         unsigned char* data = image.GetData();
 667         wxASSERT_MSG( data, wxT("No image data") );
 668
 669         unsigned char *colorCube =
 670             wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_colorCube;
 671
 672         int index = 0;
 673         for (int y = 0; y < height; y++)
 674         {
 675             for (int x = 0; x < width; x++)
 676             {
 677                 int r = data[index];
 678                 index++;
 679                 int g = data[index];
 680                 index++;
 681                 int b = data[index];
 682                 index++;
 683
 684                 if (hasMask)
 685                 {
 686                     if ((r == r_mask) && (b == b_mask) && (g == g_mask))
 687                         XPutPixel( mask_image, x, y, 0 );
 688                     else
 689                         XPutPixel( mask_image, x, y, 1 );
 690                 }
 691
 692                 switch (bpp)
 693                 {
 694                     case 8:
 695                     {
 696                         int pixel = 0;
 697                         pixel = colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
 698                         XPutPixel( data_image, x, y, pixel );
 699                         break;
 700                     }
 701                     case 12:  // SGI only
 702                     {
 703                         int pixel = 0;
 704                         switch (b_o)
 705                         {
 706                             case RGB: pixel = ((r & 0xf0) << 4) | (g & 0xf0) | ((b & 0xf0) >> 4); break;
 707                             case RBG: pixel = ((r & 0xf0) << 4) | (b & 0xf0) | ((g & 0xf0) >> 4); break;
 708                             case GRB: pixel = ((g & 0xf0) << 4) | (r & 0xf0) | ((b & 0xf0) >> 4); break;
 709                             case GBR: pixel = ((g & 0xf0) << 4) | (b & 0xf0) | ((r & 0xf0) >> 4); break;
 710                             case BRG: pixel = ((b & 0xf0) << 4) | (r & 0xf0) | ((g & 0xf0) >> 4); break;
 711                             case BGR: pixel = ((b & 0xf0) << 4) | (g & 0xf0) | ((r & 0xf0) >> 4); break;
 712                         }
 713                         XPutPixel( data_image, x, y, pixel );
 714                         break;
 715                     }
 716                     case 15:
 717                     {
 718                         int pixel = 0;
 719                         switch (b_o)
 720                         {
 721                             case RGB: pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
 722                             case RBG: pixel = ((r & 0xf8) << 7) | ((b & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
 723                             case GRB: pixel = ((g & 0xf8) << 7) | ((r & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
 724                             case GBR: pixel = ((g & 0xf8) << 7) | ((b & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
 725                             case BRG: pixel = ((b & 0xf8) << 7) | ((r & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
 726                             case BGR: pixel = ((b & 0xf8) << 7) | ((g & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
 727                         }
 728                         XPutPixel( data_image, x, y, pixel );
 729                         break;
 730                     }
 731                     case 16:
 732                     {
 733                         // I actually don't know if for 16-bit displays, it is alway the green
 734                         // component or the second component which has 6 bits.
 735                         int pixel = 0;
 736                         switch (b_o)
 737                         {
 738                             case RGB: pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
 739                             case RBG: pixel = ((r & 0xf8) << 8) | ((b & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
 740                             case GRB: pixel = ((g & 0xf8) << 8) | ((r & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
 741                             case GBR: pixel = ((g & 0xf8) << 8) | ((b & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
 742                             case BRG: pixel = ((b & 0xf8) << 8) | ((r & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
 743                             case BGR: pixel = ((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
 744                         }
 745                         XPutPixel( data_image, x, y, pixel );
 746                         break;
 747                     }
 748                     case 32:
 749                     case 24:
 750                     {
 751                         int pixel = 0;
 752                         switch (b_o)
 753                         {
 754                             case RGB: pixel = (r << 16) | (g << 8) | b; break;
 755                             case RBG: pixel = (r << 16) | (b << 8) | g; break;
 756                             case BRG: pixel = (b << 16) | (r << 8) | g; break;
 757                             case BGR: pixel = (b << 16) | (g << 8) | r; break;
 758                             case GRB: pixel = (g << 16) | (r << 8) | b; break;
 759                             case GBR: pixel = (g << 16) | (b << 8) | r; break;
 760                         }
 761                         XPutPixel( data_image, x, y, pixel );
 762                     }
 763                     default: break;
 764                 }
 765             } // for
 766         }  // for
 767
 768         // Blit picture
 769
 770         GC gc = XCreateGC( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, 0, NULL );
 771         XPutImage( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, gc, data_image, 0, 0, 0, 0, width, height );
 772         XDestroyImage( data_image );
 773         XFreeGC( xdisplay, gc );
 774
 775         // Blit mask
 776
 777         if (image.HasMask())
 778         {
 779             GC gc = XCreateGC( xdisplay, (Pixmap) GetMask()->GetBitmap(), 0, NULL );
 780             XPutImage( xdisplay, (Pixmap) GetMask()->GetBitmap(), gc, mask_image, 0, 0, 0, 0, width, height );
 781
 782             XDestroyImage( mask_image );
 783             XFreeGC( xdisplay, gc );
 784         }
 785     }
 786
 787     return true;
 788 #endif
 789     // wxUSE_NANOX
 790 }
 791
 792 wxImage wxBitmap::ConvertToImage() const
 793 {
 794     wxImage image;
 795
 796     wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
 797
 798     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 799     wxASSERT_MSG( xdisplay, wxT("No display") );
 800
 801 #if wxUSE_NANOX
 802     //int bpp = DefaultDepth(xdisplay, xscreen);
 803     wxGetImageFromDrawable((Pixmap) GetPixmap(), 0, 0, GetWidth(), GetHeight(), image);
 804     return image;
 805 #else
 806     // !wxUSE_NANOX
 807     int bpp = wxTheApp->GetVisualInfo(M_BMPDATA->m_display)->m_visualDepth;
 808     XImage *x_image = NULL;
 809     if (GetPixmap())
 810     {
 811         x_image = XGetImage( xdisplay, (Pixmap) GetPixmap(),
 812             0, 0,
 813             GetWidth(), GetHeight(),
 814             AllPlanes, ZPixmap );
 815     } else
 816     if (GetBitmap())
 817     {
 818         x_image = XGetImage( xdisplay, (Pixmap) GetBitmap(),
 819             0, 0,
 820             GetWidth(), GetHeight(),
 821             AllPlanes, ZPixmap );
 822     } else
 823     {
 824         wxFAIL_MSG( wxT("Ill-formed bitmap") );
 825     }
 826
 827     wxCHECK_MSG( x_image, wxNullImage, wxT("couldn't create image") );
 828
 829     image.Create( GetWidth(), GetHeight() );
 830     char unsigned *data = image.GetData();
 831
 832     if (!data)
 833     {
 834         XDestroyImage( x_image );
 835         wxFAIL_MSG( wxT("couldn't create image") );
 836         return wxNullImage;
 837     }
 838
 839     XImage *x_image_mask = NULL;
 840     if (GetMask())
 841     {
 842         x_image_mask = XGetImage( xdisplay, (Pixmap) GetMask()->GetBitmap(),
 843             0, 0,
 844             GetWidth(), GetHeight(),
 845             AllPlanes, ZPixmap );
 846
 847         image.SetMaskColour( 16, 16, 16 );  // anything unlikely and dividable
 848     }
 849
 850     int red_shift_right = 0;
 851     int green_shift_right = 0;
 852     int blue_shift_right = 0;
 853     int red_shift_left = 0;
 854     int green_shift_left = 0;
 855     int blue_shift_left = 0;
 856     bool use_shift = false;
 857
 858     if (GetPixmap())
 859     {
 860         wxXVisualInfo* vi = wxTheApp->GetVisualInfo(M_BMPDATA->m_display);
 861
 862         red_shift_right = vi->m_visualRedShift;
 863         red_shift_left = 8 - vi->m_visualRedPrec;
 864         green_shift_right = vi->m_visualGreenShift;
 865         green_shift_left = 8 - vi->m_visualGreenPrec;
 866         blue_shift_right = vi->m_visualBlueShift;
 867         blue_shift_left = 8 - vi->m_visualBluePrec;
 868
 869         use_shift = (vi->m_visualType == GrayScale) ||
 870                     (vi->m_visualType != PseudoColor);
 871     }
 872
 873     if (GetBitmap())
 874     {
 875         bpp = 1;
 876     }
 877
 878     XColor *colors = (XColor*)wxTheApp->
 879         GetVisualInfo(M_BMPDATA->m_display)->m_visualColormap;
 880
 881     int width = GetWidth();
 882     int height = GetHeight();
 883     long pos = 0;
 884     for (int j = 0; j < height; j++)
 885     {
 886         for (int i = 0; i < width; i++)
 887         {
 888             unsigned long pixel = XGetPixel( x_image, i, j );
 889             if (bpp == 1)
 890             {
 891                 if (pixel == 0)
 892                 {
 893                     data[pos]   = 0;
 894                     data[pos+1] = 0;
 895                     data[pos+2] = 0;
 896                 }
 897                 else
 898                 {
 899                     data[pos]   = 255;
 900                     data[pos+1] = 255;
 901                     data[pos+2] = 255;
 902                 }
 903             }
 904             else if (use_shift)
 905             {
 906                 data[pos] =   (unsigned char)((pixel >> red_shift_right)   << red_shift_left);
 907                 data[pos+1] = (unsigned char)((pixel >> green_shift_right) << green_shift_left);
 908                 data[pos+2] = (unsigned char)((pixel >> blue_shift_right)  << blue_shift_left);
 909             }
 910             else if (colors)
 911             {
 912                 data[pos] =   (unsigned char)(colors[pixel].red   >> 8);
 913                 data[pos+1] = (unsigned char)(colors[pixel].green >> 8);
 914                 data[pos+2] = (unsigned char)(colors[pixel].blue  >> 8);
 915             }
 916             else
 917             {
 918                 wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") );
 919             }
 920
 921             if (x_image_mask)
 922             {
 923                 int mask_pixel = XGetPixel( x_image_mask, i, j );
 924                 if (mask_pixel == 0)
 925                 {
 926                     data[pos] = 16;
 927                     data[pos+1] = 16;
 928                     data[pos+2] = 16;
 929                 }
 930             }
 931
 932             pos += 3;
 933         }
 934     }
 935
 936     XDestroyImage( x_image );
 937     if (x_image_mask) XDestroyImage( x_image_mask );
 938     return image;
 939 #endif
 940     // wxUSE_NANOX
 941 }
 942
 943 wxBitmap::wxBitmap( const wxString &filename, wxBitmapType type )
 944 {
 945     LoadFile( filename, type );
 946 }
 947
 948 wxBitmap::wxBitmap( const char bits[], int width, int height, int depth )
 949 {
 950     m_refData = new wxBitmapRefData;
 951
 952     (void) Create(bits, wxBITMAP_TYPE_XBM_DATA, width, height, depth);
 953 }
 954
 955 wxBitmap::~wxBitmap()
 956 {
 957 }
 958
 959 int wxBitmap::GetHeight() const
 960 {
 961     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 962
 963     return M_BMPDATA->m_height;
 964 }
 965
 966 int wxBitmap::GetWidth() const
 967 {
 968     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 969
 970     return M_BMPDATA->m_width;
 971 }
 972
 973 int wxBitmap::GetDepth() const
 974 {
 975     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 976
 977     return M_BMPDATA->m_bpp;
 978 }
 979
 980 wxMask *wxBitmap::GetMask() const
 981 {
 982     wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
 983
 984     return M_BMPDATA->m_mask;
 985 }
 986
 987 void wxBitmap::SetMask( wxMask *mask )
 988 {
 989     wxCHECK_RET( Ok(), wxT("invalid bitmap") );
 990
 991     AllocExclusive();
 992     if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
 993
 994     M_BMPDATA->m_mask = mask;
 995 }
 996
 997 bool wxBitmap::CopyFromIcon(const wxIcon& icon)
 998 {
 999     *this = icon;
1000     return true;
1001 }
1002
1003 wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
1004 {
1005     wxCHECK_MSG( Ok() &&
1006                  (rect.x >= 0) && (rect.y >= 0) &&
1007                  (rect.x+rect.width  <= M_BMPDATA->m_width ) &&
1008                  (rect.y+rect.height <= M_BMPDATA->m_height),
1009                  wxNullBitmap, wxT("invalid bitmap or bitmap region") );
1010
1011     wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
1012     wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
1013
1014     if( GetMask() )
1015     {
1016         wxMask* mask = new wxMask();
1017         mask->SetDisplay( GetMask()->GetDisplay() );
1018         mask->SetBitmap( wxGetSubPixmap( GetMask()->GetDisplay(),
1019                                          GetMask()->GetBitmap(),
1020                                          rect.x, rect.y,
1021                                          rect.width, rect.height,
1022                                          1 ) );
1023
1024         ret.SetMask( mask );
1025     }
1026
1027     if( GetPixmap() )
1028     {
1029         ret.SetPixmap( wxGetSubPixmap( GetDisplay(),
1030                                        GetPixmap(),
1031                                        rect.x, rect.y,
1032                                        rect.width, rect.height,
1033                                        M_BMPDATA->m_bpp ) );
1034     }
1035
1036     if( GetBitmap() )
1037     {
1038         ret.SetBitmap( wxGetSubPixmap( GetDisplay(),
1039                                        GetBitmap(),
1040                                        rect.x, rect.y,
1041                                        rect.width, rect.height,
1042                                        1 ) );
1043     }
1044
1045     return ret;
1046 }
1047
1048 bool wxBitmap::SaveFile( const wxString &name, wxBitmapType type,
1049                          const wxPalette *palette ) const
1050 {
1051     wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") );
1052
1053     wxBitmapHandler *handler = FindHandler(type);
1054
1055     // Try to save the bitmap via wxImage handlers:
1056     if (handler == NULL)
1057     {
1058         wxImage image(this->ConvertToImage());
1059         if (image.Ok()) return image.SaveFile( name, type );
1060
1061         return false;
1062     }
1063
1064     return handler->SaveFile(this, name, type, palette);
1065 }
1066
1067 bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type )
1068 {
1069     UnRef();
1070
1071     if (!wxFileExists(name)) return false;
1072
1073     wxBitmapHandler *handler = FindHandler(type);
1074
1075     if (handler == NULL)
1076     {
1077         wxImage image;
1078         if (!image.LoadFile( name, type ))
1079             return false;
1080
1081         if (image.Ok())
1082         {
1083             *this = wxBitmap(image);
1084             return true;
1085         }
1086         else return false;
1087     }
1088
1089     return handler->LoadFile(this, name, type, -1, -1);
1090 }
1091
1092 void wxBitmap::SetPalette(const wxPalette& palette)
1093 {
1094     wxCHECK_RET(Ok(), wxT("invalid bitmap"));
1095     wxCHECK_RET(GetDepth() > 1 && GetDepth() <= 8,
1096                 wxT("cannot set palette for bitmap of this depth"));
1097
1098     AllocExclusive();
1099     wxDELETE(M_BMPDATA->m_palette);
1100
1101     if (!palette.Ok()) return;
1102
1103     M_BMPDATA->m_palette = new wxPalette(palette);
1104 }
1105
1106 wxPalette *wxBitmap::GetPalette() const
1107 {
1108     if (!Ok()) return NULL;
1109
1110     return M_BMPDATA->m_palette;
1111 }
1112
1113 void wxBitmap::SetHeight( int height )
1114 {
1115     AllocExclusive();
1116
1117     M_BMPDATA->m_height = height;
1118 }
1119
1120 void wxBitmap::SetWidth( int width )
1121 {
1122     AllocExclusive();
1123
1124     M_BMPDATA->m_width = width;
1125 }
1126
1127 void wxBitmap::SetDepth( int depth )
1128 {
1129     AllocExclusive();
1130
1131     M_BMPDATA->m_bpp = depth;
1132 }
1133
1134 void wxBitmap::SetPixmap( WXPixmap pixmap )
1135 {
1136     if (!m_refData) m_refData = new wxBitmapRefData();
1137
1138     M_BMPDATA->m_pixmap = (Pixmap)pixmap;
1139 }
1140
1141 void wxBitmap::SetBitmap( WXPixmap bitmap )
1142 {
1143     if (!m_refData) m_refData = new wxBitmapRefData();
1144
1145     M_BMPDATA->m_bitmap = (Pixmap)bitmap;
1146 }
1147
1148 WXPixmap wxBitmap::GetPixmap() const
1149 {
1150     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1151
1152     return (WXPixmap)M_BMPDATA->m_pixmap;
1153 }
1154
1155 WXPixmap wxBitmap::GetBitmap() const
1156 {
1157     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1158
1159     return (WXPixmap)M_BMPDATA->m_bitmap;
1160 }
1161
1162 WXPixmap wxBitmap::GetDrawable() const
1163 {
1164     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1165
1166     return (WXPixmap)(M_BMPDATA->m_bpp == 1 ? M_BMPDATA->m_bitmap
1167                                             : M_BMPDATA->m_pixmap);
1168 }
1169
1170 WXDisplay *wxBitmap::GetDisplay() const
1171 {
1172     wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
1173
1174     return M_BMPDATA->m_display;
1175 }
1176
1177 #if wxUSE_NANOX
1178 // Copy from the drawable to the wxImage
1179 bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image)
1180 {
1181     GR_SCREEN_INFO sinfo;
1182     int x, y;
1183     GR_PIXELVAL *pixels;
1184     GR_PALETTE* palette = NULL;
1185     unsigned char rgb[3], *pp;
1186
1187     GrGetScreenInfo(&sinfo);
1188
1189     if (sinfo.pixtype == MWPF_PALETTE) {
1190         if(!(palette = (GR_PALETTE*) malloc(sizeof(GR_PALETTE)))) {
1191             return false;
1192         }
1193         GrGetSystemPalette(palette);
1194     }
1195
1196     if(!(pixels = (GR_PIXELVAL*) malloc(sizeof(GR_PIXELVAL) * width * height)))
1197     {
1198         return false;
1199     }
1200
1201     image.Create(width, height);
1202
1203     GrReadArea(drawable, srcX, srcY, width, height,
1204             pixels);
1205
1206
1207     for(x = 0; x < sinfo.cols; x++) {
1208
1209         pp = (unsigned char *)pixels +
1210             ((x + (y * sinfo.cols)) *
1211              sizeof(GR_PIXELVAL));
1212
1213         switch(sinfo.pixtype) {
1214             /* FIXME: These may need modifying on big endian. */
1215             case MWPF_TRUECOLOR0888:
1216             case MWPF_TRUECOLOR888:
1217                 rgb[0] = pp[2];
1218                 rgb[1] = pp[1];
1219                 rgb[2] = pp[0];
1220                 break;
1221             case MWPF_PALETTE:
1222                 rgb[0] = palette->palette[pp[0]].r;
1223                 rgb[1] = palette->palette[pp[0]].g;
1224                 rgb[2] = palette->palette[pp[0]].b;
1225                 break;
1226             case MWPF_TRUECOLOR565:
1227                 rgb[0] = pp[1] & 0xf8;
1228                 rgb[1] = ((pp[1] & 0x07) << 5) |
1229                     ((pp[0] & 0xe0) >> 3);
1230                 rgb[2] = (pp[0] & 0x1f) << 3;
1231                 break;
1232             case MWPF_TRUECOLOR555:
1233                 rgb[0] = (pp[1] & 0x7c) << 1;
1234                 rgb[1] = ((pp[1] & 0x03) << 6) |
1235                     ((pp[0] & 0xe0) >> 2);
1236                 rgb[2] = (pp[0] & 0x1f) << 3;
1237                 break;
1238             case MWPF_TRUECOLOR332:
1239                 rgb[0] = pp[0] & 0xe0;
1240                 rgb[1] = (pp[0] & 0x1c) << 3;
1241                 rgb[2] = (pp[0] & 0x03) << 6;
1242                 break;
1243             default:
1244                 fprintf(stderr, "Unsupported pixel "
1245                         "format\n");
1246                 return 1;
1247         }
1248
1249         image.SetRGB(x, y, rgb[0], rgb[1], rgb[2]);
1250
1251     }
1252
1253     free(pixels);
1254     if(palette) free(palette);
1255
1256     return true;
1257 }
1258
1259 #if 0
1260 int GrGetPixelColor(GR_SCREEN_INFO* sinfo, GR_PALETTE* palette, GR_PIXELVAL pixel,
1261     unsigned char* red, unsigned char* green, unsigned char* blue)
1262 {
1263     unsigned char rgb[3], *pp;
1264
1265     pp = (unsigned char*) & pixel ;
1266
1267     switch (sinfo.pixtype)
1268     {
1269         /* FIXME: These may need modifying on big endian. */
1270         case MWPF_TRUECOLOR0888:
1271         case MWPF_TRUECOLOR888:
1272             rgb[0] = pp[2];
1273             rgb[1] = pp[1];
1274             rgb[2] = pp[0];
1275             break;
1276         case MWPF_PALETTE:
1277             rgb[0] = palette->palette[pp[0]].r;
1278             rgb[1] = palette->palette[pp[0]].g;
1279             rgb[2] = palette->palette[pp[0]].b;
1280             break;
1281         case MWPF_TRUECOLOR565:
1282             rgb[0] = pp[1] & 0xf8;
1283             rgb[1] = ((pp[1] & 0x07) << 5) |
1284                 ((pp[0] & 0xe0) >> 3);
1285             rgb[2] = (pp[0] & 0x1f) << 3;
1286             break;
1287         case MWPF_TRUECOLOR555:
1288             rgb[0] = (pp[1] & 0x7c) << 1;
1289             rgb[1] = ((pp[1] & 0x03) << 6) |
1290                 ((pp[0] & 0xe0) >> 2);
1291             rgb[2] = (pp[0] & 0x1f) << 3;
1292             break;
1293         case MWPF_TRUECOLOR332:
1294             rgb[0] = pp[0] & 0xe0;
1295             rgb[1] = (pp[0] & 0x1c) << 3;
1296             rgb[2] = (pp[0] & 0x03) << 6;
1297             break;
1298         default:
1299             fprintf(stderr, "Unsupported pixel format\n");
1300             return 0;
1301     }
1302
1303
1304     *(red) = rgb[0];
1305     *(green) = rgb[1];
1306     *(blue) = rgb[2];
1307     return 1;
1308 }
1309 #endif
1310
1311 #endif
1312   // wxUSE_NANOX
1313
1314 // ============================================================================
1315 // Bitmap handlers
1316 // ============================================================================
1317
1318 #define M_BMPHANDLERDATA ((wxBitmapRefData *)bitmap->GetRefData())
1319
1320 #if wxUSE_XPM
1321
1322 #if wxHAVE_LIB_XPM || wxUSE_STREAMS
1323
1324 // ----------------------------------------------------------------------------
1325 // wxXPMFileHandler
1326 // ----------------------------------------------------------------------------
1327
1328 class wxXPMFileHandler : public wxBitmapHandler
1329 {
1330 public:
1331     wxXPMFileHandler()
1332     {
1333         SetName( wxT("XPM file") );
1334         SetExtension( wxT("xpm") );
1335         SetType( wxBITMAP_TYPE_XPM );
1336     };
1337
1338     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name,
1339                           wxBitmapType flags,
1340                           int desiredWidth, int desiredHeight);
1341
1342     virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name,
1343                           wxBitmapType type,
1344                           const wxPalette *palette = NULL) const;
1345
1346     virtual bool Create(wxBitmap *WXUNUSED(bitmap),
1347                         const void* WXUNUSED(data),
1348                         wxBitmapType WXUNUSED(flags),
1349                         int WXUNUSED(width),
1350                         int WXUNUSED(height),
1351                         int WXUNUSED(depth) = 1)
1352         { return false; }
1353
1354     DECLARE_DYNAMIC_CLASS(wxXPMFileHandler)
1355 };
1356
1357 IMPLEMENT_DYNAMIC_CLASS(wxXPMFileHandler, wxBitmapHandler)
1358
1359 bool wxXPMFileHandler::LoadFile(wxBitmap *bitmap,
1360                                 const wxString& name,
1361                                 wxBitmapType WXUNUSED(flags),
1362                                 int WXUNUSED(desiredWidth),
1363                                 int WXUNUSED(desiredHeight))
1364 {
1365 #if wxHAVE_LIB_XPM
1366     if (!bitmap->GetRefData())
1367         bitmap->SetRefData( new wxBitmapRefData() );
1368
1369     M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1370
1371     Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1372
1373     int xscreen = DefaultScreen( xdisplay );
1374     Window xroot = RootWindow( xdisplay, xscreen );
1375
1376     int bpp = DefaultDepth( xdisplay, xscreen );
1377
1378     XpmAttributes xpmAttr;
1379     xpmAttr.valuemask = XpmReturnInfos;    // nothing yet, but get infos back
1380
1381     Pixmap pixmap;
1382     Pixmap mask = 0;
1383
1384     int ErrorStatus = XpmReadFileToPixmap( xdisplay, xroot,
1385                                            (char*) ((const char*) name.c_str()),
1386                                            &pixmap, &mask, &xpmAttr);
1387
1388     if (ErrorStatus == XpmSuccess)
1389     {
1390         M_BMPHANDLERDATA->m_width = xpmAttr.width;
1391         M_BMPHANDLERDATA->m_height = xpmAttr.height;
1392
1393         M_BMPHANDLERDATA->m_bpp = bpp;  // mono as well?
1394
1395         XpmFreeAttributes(&xpmAttr);
1396
1397         M_BMPHANDLERDATA->m_bitmap = (Pixmap) pixmap;
1398
1399         if (mask)
1400         {
1401             M_BMPHANDLERDATA->m_mask = new wxMask;
1402             M_BMPHANDLERDATA->m_mask->SetBitmap( (WXPixmap) mask );
1403             M_BMPHANDLERDATA->m_mask->SetDisplay( xdisplay );
1404         }
1405     }
1406     else
1407     {
1408         UnRef();
1409
1410         return false;
1411     }
1412
1413     return true;
1414 #elif wxUSE_STREAMS
1415     wxXPMDecoder decoder;
1416     wxFileInputStream stream(name);
1417     if (stream.IsOk())
1418     {
1419         wxImage image(decoder.ReadFile(stream));
1420         return image.IsOk() && bitmap->CreateFromImage(image);
1421     }
1422
1423     return false;
1424 #else // !wxHAVE_LIB_XPM && !wxUSE_STREAMS
1425     return false;
1426 #endif // wxHAVE_LIB_XPM / wxUSE_STREAMS
1427 }
1428
1429 bool wxXPMFileHandler::SaveFile(const wxBitmap *bitmap,
1430                                 const wxString& name,
1431                                 wxBitmapType type,
1432                                 const wxPalette *WXUNUSED(palette)) const
1433 {
1434     wxImage image(bitmap->ConvertToImage());
1435     if (image.Ok())
1436         return image.SaveFile( name, type );
1437
1438     return false;
1439 }
1440
1441 #endif // wxHAVE_LIB_XPM || wxUSE_STREAMS
1442
1443 // ----------------------------------------------------------------------------
1444 // wxXPMDataHandler
1445 // ----------------------------------------------------------------------------
1446
1447 class wxXPMDataHandler : public wxBitmapHandler
1448 {
1449     DECLARE_DYNAMIC_CLASS(wxXPMDataHandler)
1450 public:
1451     wxXPMDataHandler()
1452     {
1453         SetName( wxT("XPM data") );
1454         SetExtension( wxT("xpm") );
1455         SetType( wxBITMAP_TYPE_XPM_DATA );
1456     };
1457
1458     virtual bool LoadFile(wxBitmap *WXUNUSED(bitmap),
1459                           const wxString& WXUNUSED(name),
1460                           wxBitmapType WXUNUSED(flags),
1461                           int WXUNUSED(desiredWidth),
1462                           int WXUNUSED(desiredHeight))
1463         { return false; }
1464
1465     virtual bool SaveFile(const wxBitmap *WXUNUSED(bitmap),
1466                           const wxString& WXUNUSED(name),
1467                           wxBitmapType WXUNUSED(type),
1468                           const wxPalette *WXUNUSED(palette) = NULL) const
1469         { return false; }
1470
1471     virtual bool Create(wxBitmap *bitmap, const void* data, wxBitmapType flags,
1472                         int width, int height, int depth = 1);
1473 };
1474
1475 IMPLEMENT_DYNAMIC_CLASS(wxXPMDataHandler, wxBitmapHandler)
1476
1477 bool wxXPMDataHandler::Create(wxBitmap *bitmap, const void* bits,
1478                               wxBitmapType WXUNUSED(flags),
1479                               int WXUNUSED(width), int WXUNUSED(height), int WXUNUSED(depth))
1480 {
1481 #if wxHAVE_LIB_XPM
1482     wxCHECK_MSG( bits != NULL, false, wxT("invalid bitmap data") );
1483
1484     if (!bitmap->GetRefData())
1485         bitmap->SetRefData( new wxBitmapRefData() );
1486
1487     M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1488
1489     Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1490
1491     int xscreen = DefaultScreen( xdisplay );
1492     Window xroot = RootWindow( xdisplay, xscreen );
1493
1494     int bpp = DefaultDepth( xdisplay, xscreen );
1495
1496     XpmAttributes xpmAttr;
1497     xpmAttr.valuemask = XpmReturnInfos;    // nothing yet, but get infos back
1498
1499     Pixmap pixmap = 0;
1500     Pixmap mask = 0;
1501
1502     int ErrorStatus = XpmCreatePixmapFromData( xdisplay, xroot, (char**) bits,
1503                                                &pixmap, &mask, &xpmAttr );
1504
1505     if (ErrorStatus == XpmSuccess)
1506     {
1507         M_BMPHANDLERDATA->m_width = xpmAttr.width;
1508         M_BMPHANDLERDATA->m_height = xpmAttr.height;
1509
1510         M_BMPHANDLERDATA->m_bpp = bpp;  // mono as well?
1511
1512 #if wxDEBUG_LEVEL
1513         unsigned int depthRet;
1514         int xRet, yRet;
1515         unsigned int widthRet, heightRet, borderWidthRet;
1516         XGetGeometry( xdisplay, pixmap, &xroot, &xRet, &yRet,
1517             &widthRet, &heightRet, &borderWidthRet, &depthRet);
1518
1519         wxASSERT_MSG( bpp == (int)depthRet, wxT("colour depth mismatch") );
1520 #endif // wxDEBUG_LEVEL
1521
1522         XpmFreeAttributes(&xpmAttr);
1523
1524         M_BMPHANDLERDATA->m_pixmap = (Pixmap) pixmap;
1525
1526         if (mask)
1527         {
1528             M_BMPHANDLERDATA->m_mask = new wxMask;
1529             M_BMPHANDLERDATA->m_mask->SetBitmap( (WXPixmap) mask );
1530             M_BMPHANDLERDATA->m_mask->SetDisplay( xdisplay );
1531         }
1532         return true;
1533     }
1534     else
1535     {
1536         bitmap->UnRef();
1537
1538         return false;
1539     }
1540 #else // !wxHAVE_LIB_XPM
1541     wxXPMDecoder decoder;
1542     wxImage image(decoder.ReadData((const char **)bits));
1543     return image.Ok() && bitmap->CreateFromImage(image);
1544 #endif // wxHAVE_LIB_XPM/!wxHAVE_LIB_XPM
1545 }
1546
1547 #endif // wxUSE_XPM
1548
1549 // ----------------------------------------------------------------------------
1550 // wxXBMDataHandler
1551 // ----------------------------------------------------------------------------
1552
1553 class WXDLLEXPORT wxXBMDataHandler: public wxBitmapHandler
1554 {
1555     DECLARE_DYNAMIC_CLASS(wxXBMDataHandler)
1556 public:
1557     inline wxXBMDataHandler()
1558     {
1559         SetName( wxT("XBM data") );
1560         SetExtension( wxT("xbm") );
1561         SetType( wxBITMAP_TYPE_XBM_DATA );
1562     };
1563
1564     virtual bool LoadFile(wxBitmap *WXUNUSED(bitmap),
1565                           const wxString& WXUNUSED(name),
1566                           wxBitmapType WXUNUSED(flags),
1567                           int WXUNUSED(desiredWidth),
1568                           int WXUNUSED(desiredHeight))
1569         { return false; }
1570
1571     virtual bool SaveFile(const wxBitmap *WXUNUSED(bitmap),
1572                           const wxString& WXUNUSED(name),
1573                           wxBitmapType WXUNUSED(type),
1574                           const wxPalette *WXUNUSED(palette) = NULL) const
1575         { return false; }
1576
1577     virtual bool Create(wxBitmap *bitmap, const void* data, wxBitmapType type,
1578                         int width, int height, int depth = 1);
1579 };
1580
1581 IMPLEMENT_DYNAMIC_CLASS(wxXBMDataHandler, wxBitmapHandler)
1582
1583 bool wxXBMDataHandler::Create( wxBitmap *bitmap, const void* bits,
1584                                wxBitmapType WXUNUSED(type),
1585                                int width, int height, int WXUNUSED(depth))
1586 {
1587 #if !wxUSE_NANOX
1588     if (!bitmap->GetRefData())
1589         bitmap->SetRefData( new wxBitmapRefData() );
1590
1591     M_BMPHANDLERDATA->m_display = wxGlobalDisplay();
1592
1593     Display *xdisplay = (Display*) M_BMPHANDLERDATA->m_display;
1594
1595     int xscreen = DefaultScreen( xdisplay );
1596     Window xroot = RootWindow( xdisplay, xscreen );
1597
1598     M_BMPHANDLERDATA->m_mask = NULL;
1599     M_BMPHANDLERDATA->m_bitmap =
1600         XCreateBitmapFromData(xdisplay, xroot,
1601                               (char *) bits, width, height );
1602     M_BMPHANDLERDATA->m_width = width;
1603     M_BMPHANDLERDATA->m_height = height;
1604     M_BMPHANDLERDATA->m_bpp = 1;
1605
1606     return true;
1607 #else
1608    wxCHECK_MSG( M_BMPHANDLERDATA->m_bitmap, false,
1609                  wxT("couldn't create bitmap") );
1610 #endif
1611 }
1612
1613 void wxBitmap::InitStandardHandlers()
1614 {
1615     AddHandler(new wxXBMDataHandler);
1616 #if wxUSE_XPM
1617 #if wxHAVE_LIB_XPM || wxUSE_STREAMS
1618     AddHandler(new wxXPMFileHandler);
1619 #endif
1620     AddHandler(new wxXPMDataHandler);
1621 #endif
1622 }