src/motif/bitmap.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bitmap.cpp
   3 // Purpose:     wxBitmap
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "bitmap.h"
  14 #endif
  15
  16 #include "wx/setup.h"
  17 #include "wx/utils.h"
  18 #include "wx/palette.h"
  19 #include "wx/bitmap.h"
  20 #include "wx/icon.h"
  21 #include "wx/log.h"
  22 #include "wx/control.h"
  23 #include "wx/dcmemory.h"
  24 #include "wx/image.h"
  25
  26 #ifdef __VMS__
  27 #pragma message disable nosimpint
  28 #endif
  29 #include <Xm/Xm.h>
  30 #ifdef __VMS__
  31 #pragma message enable nosimpint
  32 #endif
  33
  34 #include "wx/motif/private.h"
  35
  36 #if wxHAVE_LIB_XPM
  37     #include <X11/xpm.h>
  38 #endif
  39
  40 #if !USE_SHARED_LIBRARIES
  41     IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject)
  42     IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
  43 #endif
  44
  45 wxBitmapRefData::wxBitmapRefData()
  46 {
  47     m_ok = FALSE;
  48     m_width = 0;
  49     m_height = 0;
  50     m_depth = 0;
  51     m_quality = 0;
  52     m_numColors = 0;
  53     m_bitmapMask = NULL;
  54
  55     m_pixmap = (WXPixmap) 0;
  56     m_display = (WXDisplay*) 0;
  57
  58     m_freePixmap = TRUE; //TODO: necessary?
  59     m_freeColors = (unsigned long*) 0;
  60     m_freeColorsCount = 0;
  61
  62     // These 5 variables are for wxControl
  63     m_insensPixmap = (WXPixmap) 0;
  64     m_labelPixmap = (WXPixmap) 0;
  65     m_armPixmap = (WXPixmap) 0;
  66     m_image = (WXImage*) 0;
  67     m_insensImage = (WXImage*) 0;
  68 }
  69
  70 wxBitmapRefData::~wxBitmapRefData()
  71 {
  72     if (m_labelPixmap)
  73         XmDestroyPixmap (DefaultScreenOfDisplay ((Display*) m_display), (Pixmap) m_labelPixmap);
  74
  75     if (m_armPixmap)
  76         XmDestroyPixmap (DefaultScreenOfDisplay ((Display*) m_display), (Pixmap) m_armPixmap);
  77
  78     if (m_insensPixmap)
  79         XmDestroyPixmap (DefaultScreenOfDisplay ((Display*) m_display), (Pixmap) m_insensPixmap);
  80
  81     if (m_image)
  82     {
  83         XmUninstallImage ((XImage*) m_image);
  84         XtFree ((char *) (XImage*) m_image);
  85     }
  86
  87     if (m_insensImage)
  88     {
  89         XmUninstallImage ((XImage*) m_insensImage);
  90         delete[] ((XImage*) m_insensImage)->data;
  91         XtFree ((char *) (XImage*) m_insensImage);
  92     }
  93     if (m_pixmap && m_freePixmap)
  94         XFreePixmap ((Display*) m_display, (Pixmap) m_pixmap);
  95
  96     if (m_freeColors)
  97     {
  98         int screen = DefaultScreen((Display*) m_display);
  99         Colormap cmp = DefaultColormap((Display*) m_display,screen);
 100         long llp;
 101         for(llp = 0;llp < m_freeColorsCount;llp++)
 102             XFreeColors((Display*) m_display, cmp, &m_freeColors[llp], 1, 0L);
 103         delete m_freeColors;
 104     };
 105
 106     if (m_bitmapMask)
 107         delete m_bitmapMask;
 108     m_bitmapMask = NULL;
 109 }
 110
 111 wxList wxBitmap::sm_handlers;
 112
 113 wxBitmap::wxBitmap()
 114 {
 115     m_refData = NULL;
 116
 117     if ( wxTheBitmapList )
 118         wxTheBitmapList->AddBitmap(this);
 119 }
 120
 121 wxBitmap::~wxBitmap()
 122 {
 123     if (wxTheBitmapList)
 124         wxTheBitmapList->DeleteObject(this);
 125 }
 126
 127 wxBitmap::wxBitmap(const char bits[], int width, int height, int depth)
 128 {
 129     m_refData = new wxBitmapRefData;
 130
 131     (void) Create((void*) bits, wxBITMAP_TYPE_XBM_DATA, width, height, depth);
 132
 133     if ( wxTheBitmapList )
 134         wxTheBitmapList->AddBitmap(this);
 135 }
 136
 137 wxBitmap::wxBitmap(int w, int h, int d)
 138 {
 139     (void)Create(w, h, d);
 140
 141     if ( wxTheBitmapList )
 142         wxTheBitmapList->AddBitmap(this);
 143 }
 144
 145 wxBitmap::wxBitmap(void *data, long type, int width, int height, int depth)
 146 {
 147     (void) Create(data, type, width, height, depth);
 148
 149     if ( wxTheBitmapList )
 150         wxTheBitmapList->AddBitmap(this);
 151 }
 152
 153 wxBitmap::wxBitmap(const wxString& filename, long type)
 154 {
 155     LoadFile(filename, (int)type);
 156
 157     if ( wxTheBitmapList )
 158         wxTheBitmapList->AddBitmap(this);
 159 }
 160
 161 // Create from XPM data
 162 static wxControl* sg_Control = NULL;
 163 wxBitmap::wxBitmap(char **data, wxControl* control)
 164 {
 165     // Pass the control to the Create function using a global
 166     sg_Control = control;
 167
 168     (void) Create((void *)data, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0);
 169
 170     sg_Control = (wxControl*) NULL;
 171 }
 172
 173 bool wxBitmap::Create(int w, int h, int d)
 174 {
 175     UnRef();
 176
 177     m_refData = new wxBitmapRefData;
 178
 179     if (d < 1)
 180         d = wxDisplayDepth();
 181
 182     M_BITMAPDATA->m_width = w;
 183     M_BITMAPDATA->m_height = h;
 184     M_BITMAPDATA->m_depth = d;
 185     M_BITMAPDATA->m_freePixmap = TRUE;
 186
 187     Display *dpy = (Display*) wxGetDisplay();
 188
 189     M_BITMAPDATA->m_display = dpy; /* MATTHEW: [4] Remember the display */
 190
 191     M_BITMAPDATA->m_pixmap = (WXPixmap) XCreatePixmap (dpy, RootWindow (dpy, DefaultScreen (dpy)),
 192         w, h, d);
 193
 194     M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_pixmap != (WXPixmap) 0) ;
 195     return M_BITMAPDATA->m_ok;
 196 }
 197
 198 bool wxBitmap::LoadFile(const wxString& filename, long type)
 199 {
 200     UnRef();
 201
 202     m_refData = new wxBitmapRefData;
 203
 204     wxBitmapHandler *handler = FindHandler(type);
 205
 206     if ( handler == NULL ) {
 207         wxImage image;
 208         if (!image.LoadFile( filename, type )) return FALSE;
 209         if (image.Ok())
 210         {
 211             *this = image.ConvertToBitmap();
 212             return TRUE;
 213         }
 214         else return FALSE;
 215     }
 216
 217     return handler->LoadFile(this, filename, type, -1, -1);
 218 }
 219
 220 bool wxBitmap::Create(void *data, long type, int width, int height, int depth)
 221 {
 222     UnRef();
 223
 224     m_refData = new wxBitmapRefData;
 225
 226     wxBitmapHandler *handler = FindHandler(type);
 227
 228     if ( handler == NULL ) {
 229         wxLogWarning("no data bitmap handler for type %d defined.", type);
 230
 231         return FALSE;
 232     }
 233
 234     return handler->Create(this, data, type, width, height, depth);
 235 }
 236
 237 bool wxBitmap::SaveFile(const wxString& filename, int type, const wxPalette *palette)
 238 {
 239     wxBitmapHandler *handler = FindHandler(type);
 240
 241     if ( handler == NULL ) { // try wxImage
 242         wxImage image( *this );
 243         if (image.Ok()) return image.SaveFile( filename, type );
 244         else return FALSE;
 245     }
 246
 247     return handler->SaveFile(this, filename, type, palette);
 248 }
 249
 250 void wxBitmap::SetWidth(int w)
 251 {
 252     if (!M_BITMAPDATA)
 253         m_refData = new wxBitmapRefData;
 254
 255     M_BITMAPDATA->m_width = w;
 256 }
 257
 258 void wxBitmap::SetHeight(int h)
 259 {
 260     if (!M_BITMAPDATA)
 261         m_refData = new wxBitmapRefData;
 262
 263     M_BITMAPDATA->m_height = h;
 264 }
 265
 266 void wxBitmap::SetDepth(int d)
 267 {
 268     if (!M_BITMAPDATA)
 269         m_refData = new wxBitmapRefData;
 270
 271     M_BITMAPDATA->m_depth = d;
 272 }
 273
 274 void wxBitmap::SetQuality(int q)
 275 {
 276     if (!M_BITMAPDATA)
 277         m_refData = new wxBitmapRefData;
 278
 279     M_BITMAPDATA->m_quality = q;
 280 }
 281
 282 void wxBitmap::SetOk(bool isOk)
 283 {
 284     if (!M_BITMAPDATA)
 285         m_refData = new wxBitmapRefData;
 286
 287     M_BITMAPDATA->m_ok = isOk;
 288 }
 289
 290 void wxBitmap::SetPalette(const wxPalette& palette)
 291 {
 292     if (!M_BITMAPDATA)
 293         m_refData = new wxBitmapRefData;
 294
 295     M_BITMAPDATA->m_bitmapPalette = palette ;
 296 }
 297
 298 void wxBitmap::SetMask(wxMask *mask)
 299 {
 300     if (!M_BITMAPDATA)
 301         m_refData = new wxBitmapRefData;
 302
 303     M_BITMAPDATA->m_bitmapMask = mask ;
 304 }
 305
 306 void wxBitmap::AddHandler(wxBitmapHandler *handler)
 307 {
 308     sm_handlers.Append(handler);
 309 }
 310
 311 void wxBitmap::InsertHandler(wxBitmapHandler *handler)
 312 {
 313     sm_handlers.Insert(handler);
 314 }
 315
 316 bool wxBitmap::RemoveHandler(const wxString& name)
 317 {
 318     wxBitmapHandler *handler = FindHandler(name);
 319     if ( handler )
 320     {
 321         sm_handlers.DeleteObject(handler);
 322         return TRUE;
 323     }
 324     else
 325         return FALSE;
 326 }
 327
 328 wxBitmapHandler *wxBitmap::FindHandler(const wxString& name)
 329 {
 330     wxNode *node = sm_handlers.First();
 331     while ( node )
 332     {
 333         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 334         if ( handler->GetName() == name )
 335             return handler;
 336         node = node->Next();
 337     }
 338     return NULL;
 339 }
 340
 341 wxBitmapHandler *wxBitmap::FindHandler(const wxString& extension, long bitmapType)
 342 {
 343     wxNode *node = sm_handlers.First();
 344     while ( node )
 345     {
 346         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 347         if ( handler->GetExtension() == extension &&
 348             (bitmapType == -1 || handler->GetType() == bitmapType) )
 349             return handler;
 350         node = node->Next();
 351     }
 352     return NULL;
 353 }
 354
 355 wxBitmapHandler *wxBitmap::FindHandler(long bitmapType)
 356 {
 357     wxNode *node = sm_handlers.First();
 358     while ( node )
 359     {
 360         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 361         if (handler->GetType() == bitmapType)
 362             return handler;
 363         node = node->Next();
 364     }
 365     return NULL;
 366 }
 367
 368 /*
 369 * wxMask
 370 */
 371
 372 wxMask::wxMask()
 373 {
 374     m_pixmap = (WXPixmap) 0;
 375 }
 376
 377 // Construct a mask from a bitmap and a colour indicating
 378 // the transparent area
 379 wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour)
 380 {
 381     m_pixmap = (WXPixmap) 0;
 382
 383     Create(bitmap, colour);
 384 }
 385
 386 // Construct a mask from a bitmap and a palette index indicating
 387 // the transparent area
 388 wxMask::wxMask(const wxBitmap& bitmap, int paletteIndex)
 389 {
 390     m_pixmap = (WXPixmap) 0;
 391
 392     Create(bitmap, paletteIndex);
 393 }
 394
 395 // Construct a mask from a mono bitmap (copies the bitmap).
 396 wxMask::wxMask(const wxBitmap& bitmap)
 397 {
 398     m_pixmap = (WXPixmap) 0;
 399
 400     Create(bitmap);
 401 }
 402
 403 wxMask::~wxMask()
 404 {
 405     // TODO: this may be the wrong display
 406     if ( m_pixmap )
 407         XFreePixmap ((Display*) wxGetDisplay(), (Pixmap) m_pixmap);
 408 }
 409
 410 // Create a mask from a mono bitmap (copies the bitmap).
 411 bool wxMask::Create(const wxBitmap& WXUNUSED(bitmap))
 412 {
 413     // TODO
 414     return FALSE;
 415 }
 416
 417 // Create a mask from a bitmap and a palette index indicating
 418 // the transparent area
 419 bool wxMask::Create(const wxBitmap& WXUNUSED(bitmap), int WXUNUSED(paletteIndex))
 420 {
 421     // TODO
 422     return FALSE;
 423 }
 424
 425 // Create a mask from a bitmap and a colour indicating
 426 // the transparent area
 427 bool wxMask::Create(const wxBitmap& WXUNUSED(bitmap), const wxColour& WXUNUSED(colour))
 428 {
 429     // TODO
 430     return FALSE;
 431 }
 432
 433 /*
 434 * wxBitmapHandler
 435 */
 436
 437 IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject)
 438
 439 bool wxBitmapHandler::Create(wxBitmap *WXUNUSED(bitmap), void *WXUNUSED(data), long WXUNUSED(type),
 440                              int WXUNUSED(width), int WXUNUSED(height), int WXUNUSED(depth))
 441 {
 442     return FALSE;
 443 }
 444
 445 bool wxBitmapHandler::LoadFile(wxBitmap *WXUNUSED(bitmap), const wxString& WXUNUSED(name), long WXUNUSED(type),
 446                                int WXUNUSED(desiredWidth), int WXUNUSED(desiredHeight))
 447 {
 448     return FALSE;
 449 }
 450
 451 bool wxBitmapHandler::SaveFile(wxBitmap *WXUNUSED(bitmap), const wxString& WXUNUSED(name), int WXUNUSED(type),
 452                                const wxPalette *WXUNUSED(palette))
 453 {
 454     return FALSE;
 455 }
 456
 457 /*
 458 * Standard handlers
 459 */
 460
 461 class WXDLLEXPORT wxXBMFileHandler: public wxBitmapHandler
 462 {
 463     DECLARE_DYNAMIC_CLASS(wxXBMFileHandler)
 464 public:
 465     inline wxXBMFileHandler()
 466     {
 467         m_name = "XBM file";
 468         m_extension = "xbm";
 469         m_type = wxBITMAP_TYPE_XBM;
 470     };
 471
 472     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 473         int desiredWidth, int desiredHeight);
 474 };
 475 IMPLEMENT_DYNAMIC_CLASS(wxXBMFileHandler, wxBitmapHandler)
 476
 477 bool wxXBMFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long WXUNUSED(flags),
 478                                 int WXUNUSED(desiredWidth), int WXUNUSED(desiredHeight))
 479 {
 480     M_BITMAPHANDLERDATA->m_freePixmap = TRUE;
 481
 482     int hotX, hotY;
 483     unsigned int w, h;
 484     Pixmap pixmap;
 485
 486     Display *dpy = (Display*) wxGetDisplay();
 487     M_BITMAPDATA->m_display = (WXDisplay*) dpy;
 488
 489     int value = XReadBitmapFile (dpy, RootWindow (dpy, DefaultScreen (dpy)),
 490         (char*) (const char*) name, &w, &h, &pixmap, &hotX, &hotY);
 491     M_BITMAPHANDLERDATA->m_width = w;
 492     M_BITMAPHANDLERDATA->m_height = h;
 493     M_BITMAPHANDLERDATA->m_depth = 1;
 494     M_BITMAPHANDLERDATA->m_pixmap = (WXPixmap) pixmap;
 495
 496     if ((value == BitmapFileInvalid) ||
 497         (value == BitmapOpenFailed) ||
 498         (value == BitmapNoMemory))
 499     {
 500         M_BITMAPHANDLERDATA->m_ok = FALSE;
 501         M_BITMAPHANDLERDATA->m_pixmap = (WXPixmap) 0;
 502     }
 503     else
 504         M_BITMAPHANDLERDATA->m_ok = TRUE;
 505
 506     return M_BITMAPHANDLERDATA->m_ok ;
 507 }
 508
 509 class WXDLLEXPORT wxXBMDataHandler: public wxBitmapHandler
 510 {
 511     DECLARE_DYNAMIC_CLASS(wxXBMDataHandler)
 512 public:
 513     inline wxXBMDataHandler()
 514     {
 515         m_name = "XBM data";
 516         m_extension = "xbm";
 517         m_type = wxBITMAP_TYPE_XBM_DATA;
 518     };
 519
 520     virtual bool Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth = 1);
 521 };
 522 IMPLEMENT_DYNAMIC_CLASS(wxXBMDataHandler, wxBitmapHandler)
 523
 524 bool wxXBMDataHandler::Create( wxBitmap *bitmap, void *data, long WXUNUSED(flags),
 525                               int width, int height, int WXUNUSED(depth))
 526 {
 527     M_BITMAPHANDLERDATA->m_width = width;
 528     M_BITMAPHANDLERDATA->m_height = height;
 529     M_BITMAPHANDLERDATA->m_depth = 1;
 530     M_BITMAPHANDLERDATA->m_freePixmap = TRUE;
 531
 532     Display *dpy = (Display*) wxGetDisplay();
 533     M_BITMAPHANDLERDATA->m_display = (WXDisplay*) dpy;
 534
 535     M_BITMAPHANDLERDATA->m_pixmap = (WXPixmap) XCreateBitmapFromData (dpy, RootWindow (dpy, DefaultScreen (dpy)), (char*) data, width, height);
 536     M_BITMAPHANDLERDATA->m_ok = (M_BITMAPHANDLERDATA->m_pixmap != (WXPixmap) 0) ;
 537
 538     // code for wxControl. TODO: can we avoid doing this until we need it?
 539     // E.g. have CreateButtonPixmaps which is called on demand.
 540     XImage* image = (XImage *) XtMalloc (sizeof (XImage));
 541     image->width = width;
 542     image->height = height;
 543     image->data = (char*) data;
 544     image->depth = 1;
 545     image->xoffset = 0;
 546     image->format = XYBitmap;
 547     image->byte_order = LSBFirst;
 548     image->bitmap_unit = 8;
 549     image->bitmap_bit_order = LSBFirst;
 550     image->bitmap_pad = 8;
 551     image->bytes_per_line = (width + 7) >> 3;
 552
 553     char tmp[128];
 554     sprintf (tmp, "Im%x", (unsigned int) image);
 555     XmInstallImage (image, tmp);
 556
 557     // Build our manually stipped pixmap.
 558
 559     int bpl = (width + 7) / 8;
 560     char *data1 = new char[height * bpl];
 561     char* bits = (char*) data;
 562     int i;
 563     for (i = 0; i < height; i++)
 564     {
 565         int mask = i % 2 ? 0x55 : 0xaa;
 566         int j;
 567         for (j = 0; j < bpl; j++)
 568             data1[i * bpl + j] = bits[i * bpl + j] & mask;
 569     }
 570     XImage* insensImage = (XImage *) XtMalloc (sizeof (XImage));
 571     insensImage->width = width;
 572     insensImage->height = height;
 573     insensImage->data = data1;
 574     insensImage->depth = 1;
 575     insensImage->xoffset = 0;
 576     insensImage->format = XYBitmap;
 577     insensImage->byte_order = LSBFirst;
 578     insensImage->bitmap_unit = 8;
 579     insensImage->bitmap_bit_order = LSBFirst;
 580     insensImage->bitmap_pad = 8;
 581     insensImage->bytes_per_line = bpl;
 582
 583     sprintf (tmp, "Not%x", (unsigned int)insensImage);
 584     XmInstallImage (insensImage, tmp);
 585
 586     M_BITMAPHANDLERDATA->m_image = (WXImage*) image;
 587     M_BITMAPHANDLERDATA->m_insensImage = (WXImage*) insensImage;
 588
 589     return TRUE;
 590 }
 591
 592 #if wxHAVE_LIB_XPM
 593 class WXDLLEXPORT wxXPMFileHandler: public wxBitmapHandler
 594 {
 595     DECLARE_DYNAMIC_CLASS(wxXPMFileHandler)
 596 public:
 597     inline wxXPMFileHandler()
 598     {
 599         m_name = "XPM file";
 600         m_extension = "xpm";
 601         m_type = wxBITMAP_TYPE_XPM;
 602     };
 603
 604     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 605         int desiredWidth, int desiredHeight);
 606     virtual bool SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette = NULL);
 607 };
 608
 609 IMPLEMENT_DYNAMIC_CLASS(wxXPMFileHandler, wxBitmapHandler)
 610
 611 bool wxXPMFileHandler::LoadFile( wxBitmap *bitmap, const wxString& name, long WXUNUSED(flags),
 612                                 int WXUNUSED(desiredWidth), int WXUNUSED(desiredHeight) )
 613 {
 614     Display *dpy = (Display*) wxGetDisplay();
 615     M_BITMAPHANDLERDATA->m_display = (WXDisplay*) dpy;
 616
 617     XpmAttributes xpmAttr;
 618     Pixmap pixmap;
 619     Pixmap mask = 0;
 620
 621     M_BITMAPHANDLERDATA->m_ok = FALSE;
 622     xpmAttr.valuemask = XpmReturnInfos | XpmCloseness;
 623     xpmAttr.closeness = 40000;
 624     int errorStatus = XpmReadFileToPixmap(dpy,
 625         RootWindow(dpy, DefaultScreen(dpy)), (char*) (const char*) name,
 626         &pixmap, &mask, &xpmAttr);
 627
 628     if (errorStatus == XpmSuccess)
 629     {
 630         M_BITMAPHANDLERDATA->m_pixmap = (WXPixmap) pixmap;
 631         if ( mask )
 632         {
 633             M_BITMAPHANDLERDATA->m_bitmapMask = new wxMask;
 634             M_BITMAPHANDLERDATA->m_bitmapMask->SetPixmap((WXPixmap) mask);
 635         }
 636
 637         unsigned int depthRet;
 638         int xRet, yRet;
 639         unsigned int widthRet, heightRet, borderWidthRet;
 640         Window rootWindowRet;
 641         XGetGeometry(dpy, pixmap, &rootWindowRet, &xRet, &yRet,
 642             &widthRet, &heightRet, &borderWidthRet, &depthRet);
 643
 644         M_BITMAPHANDLERDATA->m_width = xpmAttr.width;
 645         M_BITMAPHANDLERDATA->m_height = xpmAttr.height;
 646
 647         /*
 648         if ( xpmAttr.npixels > 2 )
 649         {
 650         M_BITMAPHANDLERDATA->m_depth = 8;       // TODO: next time not just a guess :-) ...
 651         } else
 652         {
 653         M_BITMAPHANDLERDATA->m_depth = 1;       // mono
 654         }
 655         */
 656
 657         M_BITMAPHANDLERDATA->m_depth = depthRet;
 658
 659         M_BITMAPHANDLERDATA->m_numColors = xpmAttr.npixels;
 660
 661         XpmFreeAttributes(&xpmAttr);
 662
 663         M_BITMAPHANDLERDATA->m_ok = TRUE;
 664         return TRUE;
 665     } else
 666     {
 667         //      XpmDebugError(errorStatus, name);
 668         M_BITMAPHANDLERDATA->m_ok = FALSE;
 669         return FALSE;
 670     }
 671 }
 672
 673 bool wxXPMFileHandler::SaveFile( wxBitmap *bitmap, const wxString& name, int WXUNUSED(type),
 674                                 const wxPalette *WXUNUSED(palette))
 675 {
 676     if (M_BITMAPHANDLERDATA->m_ok && M_BITMAPHANDLERDATA->m_pixmap)
 677     {
 678         Display *dpy =  (Display*) M_BITMAPHANDLERDATA->m_display;
 679         int errorStatus = XpmWriteFileFromPixmap(dpy, (char*) (const char*) name,
 680             (Pixmap) M_BITMAPHANDLERDATA->m_pixmap,
 681             (M_BITMAPHANDLERDATA->m_bitmapMask ? (Pixmap) M_BITMAPHANDLERDATA->m_bitmapMask->GetPixmap() : (Pixmap) 0),
 682             (XpmAttributes *) NULL);
 683         if (errorStatus == XpmSuccess)
 684             return TRUE;
 685         else
 686             return FALSE;
 687     }
 688     else
 689         return FALSE;
 690 }
 691
 692 class WXDLLEXPORT wxXPMDataHandler: public wxBitmapHandler
 693 {
 694     DECLARE_DYNAMIC_CLASS(wxXPMDataHandler)
 695 public:
 696     inline wxXPMDataHandler()
 697     {
 698         m_name = "XPM data";
 699         m_extension = "xpm";
 700         m_type = wxBITMAP_TYPE_XPM_DATA;
 701     };
 702
 703     virtual bool Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth = 1);
 704 };
 705 IMPLEMENT_DYNAMIC_CLASS(wxXPMDataHandler, wxBitmapHandler)
 706
 707 bool wxXPMDataHandler::Create( wxBitmap *bitmap, void *data, long WXUNUSED(flags),
 708                               int width, int height, int WXUNUSED(depth))
 709 {
 710     M_BITMAPHANDLERDATA->m_width = width;
 711     M_BITMAPHANDLERDATA->m_height = height;
 712     M_BITMAPHANDLERDATA->m_depth = 1;
 713     M_BITMAPHANDLERDATA->m_freePixmap = TRUE;
 714
 715     Display *dpy = (Display*) wxGetDisplay();
 716     M_BITMAPHANDLERDATA->m_display = (WXDisplay*) dpy;
 717
 718     XpmAttributes xpmAttr;
 719
 720     xpmAttr.valuemask = XpmReturnInfos;    /* nothing yet, but get infos back */
 721
 722     XpmColorSymbol symbolicColors[4];
 723     if (sg_Control && sg_Control->GetMainWidget())
 724     {
 725         symbolicColors[0].name = "foreground";
 726         symbolicColors[0].value = NULL;
 727         symbolicColors[1].name = "background";
 728         symbolicColors[1].value = NULL;
 729         XtVaGetValues((Widget) sg_Control->GetMainWidget(),
 730             XmNforeground,  &symbolicColors[0].pixel,
 731             XmNbackground,  &symbolicColors[1].pixel,NULL);
 732         xpmAttr.numsymbols = 2;
 733         xpmAttr.colorsymbols = symbolicColors;
 734         xpmAttr.valuemask |= XpmColorSymbols;    // add flag
 735     }
 736
 737     Pixmap pixmap;
 738     Pixmap mask = 0;
 739     int ErrorStatus = XpmCreatePixmapFromData(dpy, RootWindow(dpy, DefaultScreen(dpy)),
 740         (char**) data, &pixmap, &mask, &xpmAttr);
 741     if (ErrorStatus == XpmSuccess)
 742     {
 743         // Set attributes
 744         M_BITMAPHANDLERDATA->m_width = xpmAttr.width;
 745         M_BITMAPHANDLERDATA->m_height = xpmAttr.height;
 746
 747         unsigned int depthRet;
 748         int xRet, yRet;
 749         unsigned int widthRet, heightRet, borderWidthRet;
 750         Window rootWindowRet;
 751         XGetGeometry(dpy, pixmap, &rootWindowRet, &xRet, &yRet,
 752             &widthRet, &heightRet, &borderWidthRet, &depthRet);
 753
 754             /*
 755             if ( xpmAttr.npixels > 2 )
 756             {
 757             M_BITMAPHANDLERDATA->m_depth = 8;    // next time not just a guess :-) ...
 758             } else
 759             {
 760             M_BITMAPHANDLERDATA->m_depth = 1;    // mono
 761             }
 762         */
 763
 764         M_BITMAPHANDLERDATA->m_depth = depthRet;
 765
 766         M_BITMAPHANDLERDATA->m_numColors = xpmAttr.npixels;
 767         XpmFreeAttributes(&xpmAttr);
 768         M_BITMAPHANDLERDATA->m_ok = TRUE;
 769         M_BITMAPHANDLERDATA->m_pixmap = (WXPixmap) pixmap;
 770         if ( mask )
 771         {
 772             M_BITMAPHANDLERDATA->m_bitmapMask = new wxMask;
 773             M_BITMAPHANDLERDATA->m_bitmapMask->SetPixmap((WXPixmap) mask);
 774         }
 775     }
 776     else
 777     {
 778         //      XpmDebugError(ErrorStatus, NULL);
 779         M_BITMAPHANDLERDATA->m_ok = FALSE;
 780     }
 781     return M_BITMAPHANDLERDATA->m_ok ;
 782 }
 783
 784 #endif // wxHAVE_LIB_XPM
 785
 786 void wxBitmap::CleanUpHandlers()
 787 {
 788     wxNode *node = sm_handlers.First();
 789     while ( node )
 790     {
 791         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 792         wxNode *next = node->Next();
 793         delete handler;
 794         delete node;
 795         node = next;
 796     }
 797 }
 798
 799 void wxBitmap::InitStandardHandlers()
 800 {
 801     // Initialize all standard bitmap or derived class handlers here.
 802     AddHandler(new wxXBMFileHandler);
 803     AddHandler(new wxXBMDataHandler);
 804
 805     // XPM is considered standard for Motif, although it can be omitted if
 806     // libXpm is not installed
 807 #if wxHAVE_LIB_XPM
 808     AddHandler(new wxXPMFileHandler);
 809     AddHandler(new wxXPMDataHandler);
 810 #endif // wxHAVE_LIB_XPM
 811 }
 812
 813 WXPixmap wxBitmap::GetLabelPixmap (WXWidget w)
 814 {
 815     if (M_BITMAPDATA->m_image == (WXPixmap) 0)
 816         return M_BITMAPDATA->m_pixmap;
 817
 818     Display *dpy = (Display*) M_BITMAPDATA->m_display;
 819
 820 #ifdef FOO
 821     /*
 822     If we do:
 823     if (labelPixmap) return labelPixmap;
 824     things can be wrong, because colors can have been changed.
 825
 826       If we do:
 827       if (labelPixmap)
 828       XmDestroyPixmap(DefaultScreenOfDisplay(dpy),labelPixmap) ;
 829       we got BadDrawable if the pixmap is referenced by multiples widgets
 830
 831         this is a catch22!!
 832
 833           So, before doing thing really clean, I just do nothing; if the pixmap is
 834           referenced by many widgets, Motif performs caching functions.
 835           And if pixmap is referenced with multiples colors, we just have some
 836           memory leaks... I hope we can deal with them...
 837     */
 838     // Must be destroyed, because colours can have been changed!
 839     if (M_BITMAPDATA->m_labelPixmap)
 840         XmDestroyPixmap (DefaultScreenOfDisplay (dpy), M_BITMAPDATA->m_labelPixmap);
 841 #endif
 842
 843     char tmp[128];
 844     sprintf (tmp, "Im%x", (unsigned int) M_BITMAPDATA->m_image);
 845
 846     Pixel fg, bg;
 847     Widget widget = (Widget) w;
 848
 849     while (XmIsGadget ( widget ))
 850         widget = XtParent (widget);
 851     XtVaGetValues (widget, XmNbackground, &bg, XmNforeground, &fg, NULL);
 852
 853     M_BITMAPDATA->m_labelPixmap = (WXPixmap) XmGetPixmap (DefaultScreenOfDisplay (dpy), tmp, fg, bg);
 854
 855     return M_BITMAPDATA->m_labelPixmap;
 856 }
 857
 858 WXPixmap wxBitmap::GetArmPixmap (WXWidget w)
 859 {
 860     if (M_BITMAPDATA->m_image == (WXPixmap) 0)
 861         return M_BITMAPDATA->m_pixmap;
 862
 863     Display *dpy = (Display*) M_BITMAPDATA->m_display;
 864 #ifdef FOO
 865     See GetLabelPixmap () comment
 866         // Must be destroyed, because colours can have been changed!
 867         if (M_BITMAPDATA->m_armPixmap)
 868             XmDestroyPixmap (DefaultScreenOfDisplay (dpy), M_BITMAPDATA->m_armPixmap);
 869 #endif
 870
 871         char tmp[128];
 872         sprintf (tmp, "Im%x", (unsigned int) M_BITMAPDATA->m_image);
 873
 874         Pixel fg, bg;
 875         Widget widget = (Widget) w;
 876
 877         XtVaGetValues (widget, XmNarmColor, &bg, NULL);
 878         while (XmIsGadget (widget))
 879             widget = XtParent (widget);
 880         XtVaGetValues (widget, XmNforeground, &fg, NULL);
 881
 882         M_BITMAPDATA->m_armPixmap = (WXPixmap) XmGetPixmap (DefaultScreenOfDisplay (dpy), tmp, fg, bg);
 883
 884         return M_BITMAPDATA->m_armPixmap;
 885 }
 886
 887 WXPixmap wxBitmap::GetInsensPixmap (WXWidget w)
 888 {
 889     Display *dpy = (Display*) M_BITMAPDATA->m_display;
 890
 891     if (M_BITMAPDATA->m_insensPixmap)
 892         return M_BITMAPDATA->m_insensPixmap;
 893
 894     if (!w)
 895     {
 896         M_BITMAPDATA->m_insensPixmap = (WXPixmap) XCreateInsensitivePixmap(dpy, (Pixmap) M_BITMAPDATA->m_pixmap);
 897         if (M_BITMAPDATA->m_insensPixmap)
 898             return M_BITMAPDATA->m_insensPixmap;
 899         else
 900             return M_BITMAPDATA->m_pixmap;
 901     }
 902
 903     if (M_BITMAPDATA->m_insensImage == (WXPixmap) 0)
 904         return M_BITMAPDATA->m_pixmap;
 905
 906 #ifdef FOO
 907     See GetLabelPixmap () comment
 908         // Must be destroyed, because colours can have been changed!
 909         if (M_BITMAPDATA->m_insensPixmap)
 910             XmDestroyPixmap (DefaultScreenOfDisplay (dpy), (Pixmap) M_BITMAPDATA->m_insensPixmap);
 911 #endif
 912
 913         char tmp[128];
 914         sprintf (tmp, "Not%x", (unsigned int) M_BITMAPDATA->m_insensImage);
 915
 916         Pixel fg, bg;
 917         Widget widget = (Widget) w;
 918
 919         while (XmIsGadget (widget))
 920             widget = XtParent (widget);
 921         XtVaGetValues (widget, XmNbackground, &bg, XmNforeground, &fg, NULL);
 922
 923         M_BITMAPDATA->m_insensPixmap = (WXPixmap) XmGetPixmap (DefaultScreenOfDisplay (dpy), tmp, fg, bg);
 924
 925         return M_BITMAPDATA->m_insensPixmap;
 926 }
 927
 928 // We may need this sometime...
 929
 930 /****************************************************************************
 931
 932   NAME
 933   XCreateInsensitivePixmap - create a grayed-out copy of a pixmap
 934
 935     SYNOPSIS
 936     Pixmap XCreateInsensitivePixmap( Display *display, Pixmap pixmap )
 937
 938       DESCRIPTION
 939       This function creates a grayed-out copy of the argument pixmap, suitable
 940       for use as a XmLabel's XmNlabelInsensitivePixmap resource.
 941
 942         RETURN VALUES
 943         The return value is the new Pixmap id or zero on error.  Errors include
 944         a NULL display argument or an invalid Pixmap argument.
 945
 946           ERRORS
 947           If one of the XLib functions fail, it will produce a X error.  The
 948           default X error handler prints a diagnostic and calls exit().
 949
 950             SEE ALSO
 951             XCopyArea(3), XCreateBitmapFromData(3), XCreateGC(3), XCreatePixmap(3),
 952             XFillRectangle(3), exit(2)
 953
 954               AUTHOR
 955               John R Veregge - john@puente.jpl.nasa.gov
 956               Advanced Engineering and Prototyping Group (AEG)
 957               Information Systems Technology Section (395)
 958               Jet Propulsion Lab - Calif Institute of Technology
 959
 960 *****************************************************************************/
 961
 962 Pixmap
 963 XCreateInsensitivePixmap( Display *display, Pixmap pixmap )
 964
 965 {
 966     static
 967         char    stipple_data[] =
 968     {
 969         0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA,
 970             0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA,
 971             0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA,
 972             0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA
 973     };
 974     GC        gc;
 975     Pixmap    ipixmap, stipple;
 976     unsigned    width, height, depth;
 977
 978     Window    window;    /* These return values */
 979     unsigned    border;    /* from XGetGeometry() */
 980     int        x, y;    /* are not needed.     */
 981
 982     ipixmap = 0;
 983
 984     if ( NULL == display || 0 == pixmap )
 985         return ipixmap;
 986
 987     if ( 0 == XGetGeometry( display, pixmap, &window, &x, &y,
 988         &width, &height, &border, &depth )
 989         )
 990         return ipixmap; /* BadDrawable: probably an invalid pixmap */
 991
 992                         /* Get the stipple pixmap to be used to 'gray-out' the argument pixmap.
 993     */
 994     stipple = XCreateBitmapFromData( display, pixmap, stipple_data, 16, 16 );
 995     if ( 0 != stipple )
 996     {
 997         gc = XCreateGC( display, pixmap, (XtGCMask)0, (XGCValues*)NULL );
 998         if ( NULL != gc )
 999         {
1000         /* Create an identical copy of the argument pixmap.
1001             */
1002             ipixmap = XCreatePixmap( display, pixmap, width, height, depth );
1003             if ( 0 != ipixmap )
1004             {
1005             /* Copy the argument pixmap into the new pixmap.
1006                 */
1007                 XCopyArea( display, pixmap, ipixmap,
1008                     gc, 0, 0, width, height, 0, 0 );
1009
1010                     /* Refill the new pixmap using the stipple algorithm/pixmap.
1011                 */
1012                 XSetStipple( display, gc, stipple );
1013                 XSetFillStyle( display, gc, FillStippled );
1014                 XFillRectangle( display, ipixmap, gc, 0, 0, width, height );
1015             }
1016             XFreeGC( display, gc );
1017         }
1018         XFreePixmap( display, stipple );
1019     }
1020     return ipixmap;
1021 }
1022
1023 // Creates a bitmap with transparent areas drawn in
1024 // the given colour.
1025 wxBitmap wxCreateMaskedBitmap(wxBitmap& bitmap, wxColour& colour)
1026 {
1027     wxBitmap newBitmap(bitmap.GetWidth(),
1028         bitmap.GetHeight(),
1029         bitmap.GetDepth());
1030     wxMemoryDC destDC;
1031     wxMemoryDC srcDC;
1032     srcDC.SelectObject(bitmap);
1033     destDC.SelectObject(newBitmap);
1034
1035     wxBrush brush(colour, wxSOLID);
1036     destDC.SetOptimization(FALSE);
1037     destDC.SetBackground(brush);
1038     destDC.Clear();
1039     destDC.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(), & srcDC, 0, 0, wxCOPY, TRUE);
1040
1041     return newBitmap;
1042 }