src/x11/bitmap.cpp

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