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