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