src/x11/bitmap.cpp

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