src/common/gdicmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        gdicmn.cpp
   3 // Purpose:     Common GDI classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "gdicmn.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #include "wx/event.h"
  24 #include "wx/gdicmn.h"
  25 #include "wx/brush.h"
  26 #include "wx/pen.h"
  27 #include "wx/bitmap.h"
  28 #include "wx/icon.h"
  29 #include "wx/cursor.h"
  30 #include "wx/font.h"
  31 #include "wx/palette.h"
  32 #include "wx/app.h"
  33 #include "wx/dc.h"
  34
  35 #include "wx/log.h"
  36 #include <string.h>
  37
  38 #ifdef __WXMSW__
  39 #include <windows.h>
  40 #endif
  41
  42 #ifdef __WXMOTIF__
  43 #include <Xm/Xm.h>
  44 #endif
  45
  46 #if !USE_SHARED_LIBRARY
  47     IMPLEMENT_CLASS(wxColourDatabase, wxList)
  48     IMPLEMENT_DYNAMIC_CLASS(wxFontList, wxList)
  49     IMPLEMENT_DYNAMIC_CLASS(wxPenList, wxList)
  50     IMPLEMENT_DYNAMIC_CLASS(wxBrushList, wxList)
  51     IMPLEMENT_DYNAMIC_CLASS(wxBitmapList, wxList)
  52     IMPLEMENT_DYNAMIC_CLASS(wxResourceCache, wxList)
  53
  54     IMPLEMENT_ABSTRACT_CLASS(wxDCBase, wxObject)
  55 #endif
  56
  57 wxRect::wxRect(const wxPoint& topLeft, const wxPoint& bottomRight)
  58 {
  59   x = topLeft.x;
  60   y = topLeft.y;
  61   width = bottomRight.x - topLeft.x;
  62   height = bottomRight.y - topLeft.y;
  63
  64   if (width < 0)
  65   {
  66     width = -width;
  67     x -= width;
  68   }
  69
  70   if (height < 0)
  71   {
  72     height = -height;
  73     y -= height;
  74   }
  75 }
  76
  77 wxRect::wxRect(const wxPoint& point, const wxSize& size)
  78 {
  79     x = point.x; y = point.y;
  80     width = size.x; height = size.y;
  81 }
  82
  83 bool wxRect::operator==(const wxRect& rect) const
  84 {
  85   return ((x == rect.x) &&
  86           (y == rect.y) &&
  87           (width == rect.width) &&
  88           (height == rect.height));
  89 }
  90
  91 wxColourDatabase::wxColourDatabase (int type) : wxList (type)
  92 {
  93 }
  94
  95 wxColourDatabase::~wxColourDatabase ()
  96 {
  97   // Cleanup Colour allocated in Initialize()
  98   wxNode *node = First ();
  99   while (node)
 100     {
 101       wxColour *col = (wxColour *) node->Data ();
 102       wxNode *next = node->Next ();
 103       delete col;
 104       node = next;
 105     }
 106 }
 107
 108 // Colour database stuff
 109 void wxColourDatabase::Initialize ()
 110 {
 111   // Don't initialize for X: colours are found
 112   // in FindColour below.
 113   // Added: Not all
 114
 115   struct cdef {
 116    wxChar *name;
 117    int r,g,b;
 118   };
 119   cdef cc;
 120   static cdef table[]={
 121
 122 // #ifdef __WXMSW__
 123    {_T("AQUAMARINE"),112, 219, 147},
 124    {_T("BLACK"),0, 0, 0},
 125    {_T("BLUE"), 0, 0, 255},
 126    {_T("BLUE VIOLET"), 159, 95, 159},
 127    {_T("BROWN"), 165, 42, 42},
 128    {_T("CADET BLUE"), 95, 159, 159},
 129    {_T("CORAL"), 255, 127, 0},
 130    {_T("CORNFLOWER BLUE"), 66, 66, 111},
 131    {_T("CYAN"), 0, 255, 255},
 132    {_T("DARK GREY"), 47, 47, 47},   // ?
 133
 134    {_T("DARK GREEN"), 47, 79, 47},
 135    {_T("DARK OLIVE GREEN"), 79, 79, 47},
 136    {_T("DARK ORCHID"), 153, 50, 204},
 137    {_T("DARK SLATE BLUE"), 107, 35, 142},
 138    {_T("DARK SLATE GREY"), 47, 79, 79},
 139    {_T("DARK TURQUOISE"), 112, 147, 219},
 140    {_T("DIM GREY"), 84, 84, 84},
 141    {_T("FIREBRICK"), 142, 35, 35},
 142    {_T("FOREST GREEN"), 35, 142, 35},
 143    {_T("GOLD"), 204, 127, 50},
 144    {_T("GOLDENROD"), 219, 219, 112},
 145    {_T("GREY"), 128, 128, 128},
 146    {_T("GREEN"), 0, 255, 0},
 147    {_T("GREEN YELLOW"), 147, 219, 112},
 148    {_T("INDIAN RED"), 79, 47, 47},
 149    {_T("KHAKI"), 159, 159, 95},
 150    {_T("LIGHT BLUE"), 191, 216, 216},
 151    {_T("LIGHT GREY"), 192, 192, 192},
 152    {_T("LIGHT STEEL BLUE"), 143, 143, 188},
 153    {_T("LIME GREEN"), 50, 204, 50},
 154    {_T("LIGHT MAGENTA"), 255, 0, 255},
 155    {_T("MAGENTA"), 255, 0, 255},
 156    {_T("MAROON"), 142, 35, 107},
 157    {_T("MEDIUM AQUAMARINE"), 50, 204, 153},
 158    {_T("MEDIUM GREY"), 100, 100, 100},
 159    {_T("MEDIUM BLUE"), 50, 50, 204},
 160    {_T("MEDIUM FOREST GREEN"), 107, 142, 35},
 161    {_T("MEDIUM GOLDENROD"), 234, 234, 173},
 162    {_T("MEDIUM ORCHID"), 147, 112, 219},
 163    {_T("MEDIUM SEA GREEN"), 66, 111, 66},
 164    {_T("MEDIUM SLATE BLUE"), 127, 0, 255},
 165    {_T("MEDIUM SPRING GREEN"), 127, 255, 0},
 166    {_T("MEDIUM TURQUOISE"), 112, 219, 219},
 167    {_T("MEDIUM VIOLET RED"), 219, 112, 147},
 168    {_T("MIDNIGHT BLUE"), 47, 47, 79},
 169    {_T("NAVY"), 35, 35, 142},
 170    {_T("ORANGE"), 204, 50, 50},
 171    {_T("ORANGE RED"), 255, 0, 127},
 172    {_T("ORCHID"), 219, 112, 219},
 173    {_T("PALE GREEN"), 143, 188, 143},
 174    {_T("PINK"), 188, 143, 234},
 175    {_T("PLUM"), 234, 173, 234},
 176    {_T("PURPLE"), 176, 0, 255},
 177    {_T("RED"), 255, 0, 0},
 178    {_T("SALMON"), 111, 66, 66},
 179    {_T("SEA GREEN"), 35, 142, 107},
 180    {_T("SIENNA"), 142, 107, 35},
 181    {_T("SKY BLUE"), 50, 153, 204},
 182    {_T("SLATE BLUE"), 0, 127, 255},
 183    {_T("SPRING GREEN"), 0, 255, 127},
 184    {_T("STEEL BLUE"), 35, 107, 142},
 185    {_T("TAN"), 219, 147, 112},
 186    {_T("THISTLE"), 216, 191, 216},
 187    {_T("TURQUOISE"), 173, 234, 234},
 188    {_T("VIOLET"), 79, 47, 79},
 189    {_T("VIOLET RED"), 204, 50, 153},
 190    {_T("WHEAT"), 216, 216, 191},
 191    {_T("WHITE"), 255, 255, 255},
 192    {_T("YELLOW"), 255, 255, 0},
 193    {_T("YELLOW GREEN"), 153, 204, 50},
 194 // #endif
 195
 196 #if defined(__WXGTK__) || defined(__X__)
 197    {_T("MEDIUM GOLDENROD"), 234, 234, 173},
 198    {_T("MEDIUM FOREST GREEN"), 107, 142, 35},
 199    {_T("LIGHT MAGENTA"), 255, 0, 255},
 200    {_T("MEDIUM GREY"), 100, 100, 100},
 201 #endif
 202
 203    {0,0,0,0}
 204   };
 205   int i;
 206   for (i=0;cc=table[i],cc.name!=0;i++)
 207   {
 208     Append(cc.name,new wxColour(cc.r,cc.g,cc.b));
 209   }
 210
 211 }
 212
 213 /*
 214  * Changed by Ian Brown, July 1994.
 215  *
 216  * When running under X, the Colour Database starts off empty. The X server
 217  * is queried for the colour first time after which it is entered into the
 218  * database. This allows our client to use the server colour database which
 219  * is hopefully gamma corrected for the display being used.
 220  */
 221
 222 wxColour *wxColourDatabase::FindColour(const wxString& colour)
 223 {
 224   // VZ: make the comparaison case insensitive
 225   wxString str = colour;
 226   str.MakeUpper();
 227
 228   wxNode *node = Find(str);
 229   if (node)
 230     return (wxColour *)node->Data();
 231
 232 #ifdef __WXMSW__
 233   else return NULL;
 234 #endif
 235
 236 // TODO for other implementations. This should really go into
 237 // platform-specific directories.
 238 #ifdef __WXMAC__
 239   else return NULL;
 240 #endif
 241 #ifdef __WXSTUBS__
 242   else return NULL;
 243 #endif
 244
 245 #ifdef __WXGTK__
 246   else {
 247     wxColour *col = new wxColour( colour );
 248
 249     if (!(col->Ok())) {
 250       delete col;
 251       return (wxColour *) NULL;
 252     }
 253     Append( colour, col );
 254     return col;
 255   }
 256 #endif
 257
 258 #ifdef __X__
 259   else {
 260     XColor xcolour;
 261
 262 #ifdef __WXMOTIF__
 263     Display *display = XtDisplay((Widget) wxTheApp->GetTopLevelWidget()) ;
 264 #endif
 265 #ifdef __XVIEW__
 266     Xv_Screen screen = xv_get(xview_server, SERVER_NTH_SCREEN, 0);
 267     Xv_opaque root_window = xv_get(screen, XV_ROOT);
 268     Display *display = (Display *)xv_get(root_window, XV_DISPLAY);
 269 #endif
 270
 271     /* MATTHEW: [4] Use wxGetMainColormap */
 272     if (!XParseColor(display, (Colormap) wxTheApp->GetMainColormap((WXDisplay*) display), colour,&xcolour))
 273       return NULL;
 274
 275     unsigned char r = (unsigned char)(xcolour.red >> 8);
 276     unsigned char g = (unsigned char)(xcolour.green >> 8);
 277     unsigned char b = (unsigned char)(xcolour.blue >> 8);
 278
 279     wxColour *col = new wxColour(r, g, b);
 280     Append(colour, col);
 281
 282     return col;
 283   }
 284 #endif
 285 }
 286
 287 wxString wxColourDatabase::FindName (const wxColour& colour) const
 288 {
 289     wxString name;
 290
 291     unsigned char red = colour.Red ();
 292     unsigned char green = colour.Green ();
 293     unsigned char blue = colour.Blue ();
 294
 295     for (wxNode * node = First (); node; node = node->Next ())
 296     {
 297         wxColour *col = (wxColour *) node->Data ();
 298
 299         if (col->Red () == red && col->Green () == green && col->Blue () == blue)
 300         {
 301             const wxChar *found = node->GetKeyString();
 302             if ( found )
 303             {
 304                 name = found;
 305
 306                 break;
 307             }
 308         }
 309     }
 310
 311     return name;
 312 }
 313
 314 void wxInitializeStockLists () {
 315   wxTheBrushList = new wxBrushList;
 316   wxThePenList = new wxPenList;
 317   wxTheFontList = new wxFontList;
 318   wxTheBitmapList = new wxBitmapList;
 319 }
 320
 321 void wxInitializeStockObjects ()
 322 {
 323 #ifdef __WXMOTIF__
 324 #endif
 325 #ifdef __X__
 326   // TODO
 327   //  wxFontPool = new XFontPool;
 328 #endif
 329
 330   wxNORMAL_FONT = new wxFont (12, wxMODERN, wxNORMAL, wxNORMAL);
 331   wxSMALL_FONT = new wxFont (10, wxSWISS, wxNORMAL, wxNORMAL);
 332   wxITALIC_FONT = new wxFont (12, wxROMAN, wxITALIC, wxNORMAL);
 333   wxSWISS_FONT = new wxFont (12, wxSWISS, wxNORMAL, wxNORMAL);
 334
 335   wxRED_PEN = new wxPen ("RED", 1, wxSOLID);
 336   wxCYAN_PEN = new wxPen ("CYAN", 1, wxSOLID);
 337   wxGREEN_PEN = new wxPen ("GREEN", 1, wxSOLID);
 338   wxBLACK_PEN = new wxPen ("BLACK", 1, wxSOLID);
 339   wxWHITE_PEN = new wxPen ("WHITE", 1, wxSOLID);
 340   wxTRANSPARENT_PEN = new wxPen ("BLACK", 1, wxTRANSPARENT);
 341   wxBLACK_DASHED_PEN = new wxPen ("BLACK", 1, wxSHORT_DASH);
 342   wxGREY_PEN = new wxPen ("GREY", 1, wxSOLID);
 343   wxMEDIUM_GREY_PEN = new wxPen ("MEDIUM GREY", 1, wxSOLID);
 344   wxLIGHT_GREY_PEN = new wxPen ("LIGHT GREY", 1, wxSOLID);
 345
 346   wxBLUE_BRUSH = new wxBrush ("BLUE", wxSOLID);
 347   wxGREEN_BRUSH = new wxBrush ("GREEN", wxSOLID);
 348   wxWHITE_BRUSH = new wxBrush ("WHITE", wxSOLID);
 349   wxBLACK_BRUSH = new wxBrush ("BLACK", wxSOLID);
 350   wxTRANSPARENT_BRUSH = new wxBrush ("BLACK", wxTRANSPARENT);
 351   wxCYAN_BRUSH = new wxBrush ("CYAN", wxSOLID);
 352   wxRED_BRUSH = new wxBrush ("RED", wxSOLID);
 353   wxGREY_BRUSH = new wxBrush ("GREY", wxSOLID);
 354   wxMEDIUM_GREY_BRUSH = new wxBrush ("MEDIUM GREY", wxSOLID);
 355   wxLIGHT_GREY_BRUSH = new wxBrush ("LIGHT GREY", wxSOLID);
 356
 357   wxBLACK = new wxColour ("BLACK");
 358   wxWHITE = new wxColour ("WHITE");
 359   wxRED = new wxColour ("RED");
 360   wxBLUE = new wxColour ("BLUE");
 361   wxGREEN = new wxColour ("GREEN");
 362   wxCYAN = new wxColour ("CYAN");
 363   wxLIGHT_GREY = new wxColour ("LIGHT GREY");
 364
 365   wxSTANDARD_CURSOR = new wxCursor (wxCURSOR_ARROW);
 366   wxHOURGLASS_CURSOR = new wxCursor (wxCURSOR_WAIT);
 367   wxCROSS_CURSOR = new wxCursor (wxCURSOR_CROSS);
 368 }
 369
 370 void wxDeleteStockObjects ()
 371 {
 372   wxDELETE(wxNORMAL_FONT);
 373   wxDELETE(wxSMALL_FONT);
 374   wxDELETE(wxITALIC_FONT);
 375   wxDELETE(wxSWISS_FONT);
 376
 377   wxDELETE(wxRED_PEN);
 378   wxDELETE(wxCYAN_PEN);
 379   wxDELETE(wxGREEN_PEN);
 380   wxDELETE(wxBLACK_PEN);
 381   wxDELETE(wxWHITE_PEN);
 382   wxDELETE(wxTRANSPARENT_PEN);
 383   wxDELETE(wxBLACK_DASHED_PEN);
 384   wxDELETE(wxGREY_PEN);
 385   wxDELETE(wxMEDIUM_GREY_PEN);
 386   wxDELETE(wxLIGHT_GREY_PEN);
 387
 388   wxDELETE(wxBLUE_BRUSH);
 389   wxDELETE(wxGREEN_BRUSH);
 390   wxDELETE(wxWHITE_BRUSH);
 391   wxDELETE(wxBLACK_BRUSH);
 392   wxDELETE(wxTRANSPARENT_BRUSH);
 393   wxDELETE(wxCYAN_BRUSH);
 394   wxDELETE(wxRED_BRUSH);
 395   wxDELETE(wxGREY_BRUSH);
 396   wxDELETE(wxMEDIUM_GREY_BRUSH);
 397   wxDELETE(wxLIGHT_GREY_BRUSH);
 398
 399   wxDELETE(wxBLACK);
 400   wxDELETE(wxWHITE);
 401   wxDELETE(wxRED);
 402   wxDELETE(wxBLUE);
 403   wxDELETE(wxGREEN);
 404   wxDELETE(wxCYAN);
 405   wxDELETE(wxLIGHT_GREY);
 406
 407   wxDELETE(wxSTANDARD_CURSOR);
 408   wxDELETE(wxHOURGLASS_CURSOR);
 409   wxDELETE(wxCROSS_CURSOR);
 410 }
 411
 412 void wxDeleteStockLists() {
 413   wxDELETE(wxTheBrushList);
 414   wxDELETE(wxThePenList);
 415   wxDELETE(wxTheFontList);
 416   wxDELETE(wxTheBitmapList);
 417 }
 418
 419 wxBitmapList::wxBitmapList ()
 420 {
 421 }
 422
 423 wxBitmapList::~wxBitmapList ()
 424 {
 425 #if defined(__WXMSW__) || defined(__WXMOTIF__)
 426   wxNode *node = First ();
 427   while (node)
 428     {
 429       wxBitmap *bitmap = (wxBitmap *) node->Data ();
 430       wxNode *next = node->Next ();
 431       if (bitmap->GetVisible())
 432         delete bitmap;
 433       node = next;
 434     }
 435 #endif
 436 }
 437
 438 // Pen and Brush lists
 439 wxPenList::~wxPenList ()
 440 {
 441 #if defined(__WXMSW__) || defined(__WXMOTIF__)
 442   wxNode *node = First ();
 443   while (node)
 444     {
 445       wxPen *pen = (wxPen *) node->Data ();
 446       wxNode *next = node->Next ();
 447       if (pen->GetVisible())
 448         delete pen;
 449       node = next;
 450     }
 451 #endif
 452 }
 453
 454 void wxPenList::AddPen (wxPen * pen)
 455 {
 456   Append (pen);
 457 }
 458
 459 void wxPenList::RemovePen (wxPen * pen)
 460 {
 461   DeleteObject (pen);
 462 }
 463
 464 wxPen *wxPenList::FindOrCreatePen (const wxColour& colour, int width, int style)
 465 {
 466   for (wxNode * node = First (); node; node = node->Next ())
 467     {
 468       wxPen *each_pen = (wxPen *) node->Data ();
 469       if (each_pen && each_pen->GetVisible() &&
 470           each_pen->GetWidth () == width &&
 471           each_pen->GetStyle () == style &&
 472           each_pen->GetColour ().Red () == colour.Red () &&
 473           each_pen->GetColour ().Green () == colour.Green () &&
 474           each_pen->GetColour ().Blue () == colour.Blue ())
 475         return each_pen;
 476     }
 477   wxPen *pen = new wxPen (colour, width, style);
 478
 479   // Yes, we can return a pointer to this in a later FindOrCreatePen call,
 480   // because we created it within FindOrCreatePen. Safeguards against
 481   // returning a pointer to an automatic variable and hanging on to it
 482   // (dangling pointer).
 483   pen->SetVisible(TRUE);
 484   return pen;
 485 }
 486
 487 wxBrushList::~wxBrushList ()
 488 {
 489 #if defined(__WXMSW__) || defined(__WXMOTIF__)
 490   wxNode *node = First ();
 491   while (node)
 492     {
 493       wxBrush *brush = (wxBrush *) node->Data ();
 494       wxNode *next = node->Next ();
 495       if (brush->GetVisible())
 496         delete brush;
 497       node = next;
 498     }
 499 #endif
 500 }
 501
 502 void wxBrushList::AddBrush (wxBrush * brush)
 503 {
 504   Append (brush);
 505 }
 506
 507 wxBrush *wxBrushList::FindOrCreateBrush (const wxColour& colour, int style)
 508 {
 509   for (wxNode * node = First (); node; node = node->Next ())
 510     {
 511       wxBrush *each_brush = (wxBrush *) node->Data ();
 512       if (each_brush && each_brush->GetVisible() &&
 513           each_brush->GetStyle () == style &&
 514           each_brush->GetColour ().Red () == colour.Red () &&
 515           each_brush->GetColour ().Green () == colour.Green () &&
 516           each_brush->GetColour ().Blue () == colour.Blue ())
 517         return each_brush;
 518     }
 519   // Yes, we can return a pointer to this in a later FindOrCreateBrush call,
 520   // because we created it within FindOrCreateBrush. Safeguards against
 521   // returning a pointer to an automatic variable and hanging on to it
 522   // (dangling pointer).
 523   wxBrush *brush = new wxBrush (colour, style);
 524   brush->SetVisible(TRUE);
 525   return brush;
 526 }
 527
 528 void wxBrushList::RemoveBrush (wxBrush * brush)
 529 {
 530   DeleteObject (brush);
 531 }
 532
 533 wxFontList::~wxFontList ()
 534 {
 535   wxNode *node = First ();
 536   while (node)
 537     {
 538           // Only delete objects that are 'visible', i.e.
 539           // that have been created using FindOrCreate...,
 540           // where the pointers are expected to be shared
 541           // (and therefore not deleted by any one part of an app).
 542       wxFont *font = (wxFont *) node->Data ();
 543       wxNode *next = node->Next ();
 544           if (font->GetVisible())
 545                 delete font;
 546       node = next;
 547 }
 548 }
 549
 550 void wxFontList::AddFont (wxFont * font)
 551 {
 552   Append (font);
 553 }
 554
 555 void wxFontList::RemoveFont (wxFont * font)
 556 {
 557   DeleteObject (font);
 558 }
 559
 560 wxFont *wxFontList::
 561         FindOrCreateFont (int PointSize, int FamilyOrFontId, int Style, int Weight, bool underline, const wxString& Face)
 562 {
 563   for (wxNode * node = First (); node; node = node->Next ())
 564     {
 565       wxFont *each_font = (wxFont *) node->Data ();
 566       if (each_font && each_font->GetVisible() && each_font->Ok() &&
 567           each_font->GetPointSize () == PointSize &&
 568           each_font->GetStyle () == Style &&
 569           each_font->GetWeight () == Weight &&
 570           each_font->GetUnderlined () == underline &&
 571           //#if defined(__X__)
 572           //          each_font->GetFontId () == FamilyOrFontId) /* New font system */
 573           //#else
 574           each_font->GetFamily () == FamilyOrFontId &&
 575           ((each_font->GetFaceName() == _T("")) || each_font->GetFaceName() == Face))
 576         //#endif
 577         return each_font;
 578     }
 579   wxFont *font = new wxFont (PointSize, FamilyOrFontId, Style, Weight, underline, Face);
 580   font->SetVisible(TRUE);
 581   return font;
 582 }
 583
 584 void wxBitmapList::AddBitmap(wxBitmap *bitmap)
 585 {
 586     Append(bitmap);
 587 }
 588
 589 void wxBitmapList::RemoveBitmap(wxBitmap *bitmap)
 590 {
 591     DeleteObject(bitmap);
 592 }
 593
 594 wxSize wxGetDisplaySize()
 595 {
 596     int x, y;
 597     wxDisplaySize(& x, & y);
 598     return wxSize(x, y);
 599 }
 600
 601 wxResourceCache::~wxResourceCache ()
 602 {
 603   wxNode *node = First ();
 604   while (node) {
 605     wxGDIObject *item = (wxGDIObject *)node->Data();
 606     if (item->IsKindOf(CLASSINFO(wxBrush))) {
 607       wxBrush *brush = (wxBrush *)item;
 608       delete brush;
 609     }
 610
 611     if (item->IsKindOf(CLASSINFO(wxFont))) {
 612       wxFont *font = (wxFont *)item;
 613       delete font;
 614     }
 615
 616     if (item->IsKindOf(CLASSINFO(wxBitmap))) {
 617       wxBitmap *bitmap = (wxBitmap *)item;
 618       delete bitmap;
 619     }
 620
 621     if (item->IsKindOf(CLASSINFO(wxColour))) {
 622       wxColour *colour = (wxColour *)item;
 623       delete colour;
 624     }
 625
 626     wxNode *next = node->Next ();
 627     node = next;
 628   }
 629 }
 630