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 #ifdef __VMS
  17 #define XtDisplay XTDISPLAY
  18 #endif
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24 #pragma hdrstop
  25 #endif
  26
  27 #include "wx/event.h"
  28 #include "wx/gdicmn.h"
  29 #include "wx/brush.h"
  30 #include "wx/pen.h"
  31 #include "wx/bitmap.h"
  32 #include "wx/icon.h"
  33 #include "wx/cursor.h"
  34 #include "wx/font.h"
  35 #include "wx/palette.h"
  36 #include "wx/app.h"
  37 #include "wx/dc.h"
  38 #include "wx/utils.h"
  39
  40 #include "wx/log.h"
  41 #include <string.h>
  42
  43 #ifdef __WXMSW__
  44 #include <windows.h>
  45 #endif
  46
  47 #ifdef __WXMOTIF__
  48 #ifdef __VMS__
  49 #pragma message disable nosimpint
  50 #endif
  51 #include <Xm/Xm.h>
  52 #ifdef __VMS__
  53 #pragma message enable nosimpint
  54 #endif
  55 #endif
  56
  57 IMPLEMENT_CLASS(wxColourDatabase, wxList)
  58 IMPLEMENT_DYNAMIC_CLASS(wxFontList, wxList)
  59 IMPLEMENT_DYNAMIC_CLASS(wxPenList, wxList)
  60 IMPLEMENT_DYNAMIC_CLASS(wxBrushList, wxList)
  61 IMPLEMENT_DYNAMIC_CLASS(wxBitmapList, wxList)
  62 IMPLEMENT_DYNAMIC_CLASS(wxResourceCache, wxList)
  63
  64 IMPLEMENT_ABSTRACT_CLASS(wxDCBase, wxObject)
  65
  66 wxRect::wxRect(const wxPoint& topLeft, const wxPoint& bottomRight)
  67 {
  68   x = topLeft.x;
  69   y = topLeft.y;
  70   width = bottomRight.x - topLeft.x + 1;
  71   height = bottomRight.y - topLeft.y + 1;
  72
  73   if (width < 0)
  74   {
  75     width = -width;
  76     x -= width;
  77   }
  78
  79   if (height < 0)
  80   {
  81     height = -height;
  82     y -= height;
  83   }
  84 }
  85
  86 wxRect::wxRect(const wxPoint& point, const wxSize& size)
  87 {
  88     x = point.x; y = point.y;
  89     width = size.x; height = size.y;
  90 }
  91
  92 bool wxRect::operator==(const wxRect& rect) const
  93 {
  94   return ((x == rect.x) &&
  95           (y == rect.y) &&
  96           (width == rect.width) &&
  97           (height == rect.height));
  98 }
  99
 100 wxRect& wxRect::operator += (const wxRect& rect)
 101 {
 102     *this = (*this + rect);
 103     return ( *this ) ;
 104 }
 105
 106 wxRect wxRect::operator + (const wxRect& rect) const
 107 {
 108     int x1 = wxMin(this->x, rect.x);
 109     int y1 = wxMin(this->y, rect.y);
 110     int y2 = wxMax(y+height, rect.height+rect.y);
 111     int x2 = wxMax(x+width, rect.width+rect.x);
 112     return wxRect(x1, y1, x2-x1, y2-y1);
 113 }
 114
 115 bool wxRect::Inside(int cx, int cy) const
 116 {
 117     return ( (cx >= x) && (cy >= y)
 118           && ((cy - y) < height)
 119           && ((cx - x) < width)
 120           );
 121 }
 122
 123 wxColourDatabase::wxColourDatabase (int type) : wxList (type)
 124 {
 125 }
 126
 127 wxColourDatabase::~wxColourDatabase ()
 128 {
 129   // Cleanup Colour allocated in Initialize()
 130   wxNode *node = First ();
 131   while (node)
 132     {
 133       wxColour *col = (wxColour *) node->Data ();
 134       wxNode *next = node->Next ();
 135       delete col;
 136       node = next;
 137     }
 138 }
 139
 140 // Colour database stuff
 141 void wxColourDatabase::Initialize ()
 142 {
 143     static const struct wxColourDesc
 144     {
 145         const wxChar *name;
 146         int r,g,b;
 147     }
 148     wxColourTable[] =
 149     {
 150         {wxT("AQUAMARINE"),112, 219, 147},
 151         {wxT("BLACK"),0, 0, 0},
 152         {wxT("BLUE"), 0, 0, 255},
 153         {wxT("BLUE VIOLET"), 159, 95, 159},
 154         {wxT("BROWN"), 165, 42, 42},
 155         {wxT("CADET BLUE"), 95, 159, 159},
 156         {wxT("CORAL"), 255, 127, 0},
 157         {wxT("CORNFLOWER BLUE"), 66, 66, 111},
 158         {wxT("CYAN"), 0, 255, 255},
 159         {wxT("DARK GREY"), 47, 47, 47},   // ?
 160
 161         {wxT("DARK GREEN"), 47, 79, 47},
 162         {wxT("DARK OLIVE GREEN"), 79, 79, 47},
 163         {wxT("DARK ORCHID"), 153, 50, 204},
 164         {wxT("DARK SLATE BLUE"), 107, 35, 142},
 165         {wxT("DARK SLATE GREY"), 47, 79, 79},
 166         {wxT("DARK TURQUOISE"), 112, 147, 219},
 167         {wxT("DIM GREY"), 84, 84, 84},
 168         {wxT("FIREBRICK"), 142, 35, 35},
 169         {wxT("FOREST GREEN"), 35, 142, 35},
 170         {wxT("GOLD"), 204, 127, 50},
 171         {wxT("GOLDENROD"), 219, 219, 112},
 172         {wxT("GREY"), 128, 128, 128},
 173         {wxT("GREEN"), 0, 255, 0},
 174         {wxT("GREEN YELLOW"), 147, 219, 112},
 175         {wxT("INDIAN RED"), 79, 47, 47},
 176         {wxT("KHAKI"), 159, 159, 95},
 177         {wxT("LIGHT BLUE"), 191, 216, 216},
 178         {wxT("LIGHT GREY"), 192, 192, 192},
 179         {wxT("LIGHT STEEL BLUE"), 143, 143, 188},
 180         {wxT("LIME GREEN"), 50, 204, 50},
 181         {wxT("LIGHT MAGENTA"), 255, 0, 255},
 182         {wxT("MAGENTA"), 255, 0, 255},
 183         {wxT("MAROON"), 142, 35, 107},
 184         {wxT("MEDIUM AQUAMARINE"), 50, 204, 153},
 185         {wxT("MEDIUM GREY"), 100, 100, 100},
 186         {wxT("MEDIUM BLUE"), 50, 50, 204},
 187         {wxT("MEDIUM FOREST GREEN"), 107, 142, 35},
 188         {wxT("MEDIUM GOLDENROD"), 234, 234, 173},
 189         {wxT("MEDIUM ORCHID"), 147, 112, 219},
 190         {wxT("MEDIUM SEA GREEN"), 66, 111, 66},
 191         {wxT("MEDIUM SLATE BLUE"), 127, 0, 255},
 192         {wxT("MEDIUM SPRING GREEN"), 127, 255, 0},
 193         {wxT("MEDIUM TURQUOISE"), 112, 219, 219},
 194         {wxT("MEDIUM VIOLET RED"), 219, 112, 147},
 195         {wxT("MIDNIGHT BLUE"), 47, 47, 79},
 196         {wxT("NAVY"), 35, 35, 142},
 197         {wxT("ORANGE"), 204, 50, 50},
 198         {wxT("ORANGE RED"), 255, 0, 127},
 199         {wxT("ORCHID"), 219, 112, 219},
 200         {wxT("PALE GREEN"), 143, 188, 143},
 201         {wxT("PINK"), 188, 143, 234},
 202         {wxT("PLUM"), 234, 173, 234},
 203         {wxT("PURPLE"), 176, 0, 255},
 204         {wxT("RED"), 255, 0, 0},
 205         {wxT("SALMON"), 111, 66, 66},
 206         {wxT("SEA GREEN"), 35, 142, 107},
 207         {wxT("SIENNA"), 142, 107, 35},
 208         {wxT("SKY BLUE"), 50, 153, 204},
 209         {wxT("SLATE BLUE"), 0, 127, 255},
 210         {wxT("SPRING GREEN"), 0, 255, 127},
 211         {wxT("STEEL BLUE"), 35, 107, 142},
 212         {wxT("TAN"), 219, 147, 112},
 213         {wxT("THISTLE"), 216, 191, 216},
 214         {wxT("TURQUOISE"), 173, 234, 234},
 215         {wxT("VIOLET"), 79, 47, 79},
 216         {wxT("VIOLET RED"), 204, 50, 153},
 217         {wxT("WHEAT"), 216, 216, 191},
 218         {wxT("WHITE"), 255, 255, 255},
 219         {wxT("YELLOW"), 255, 255, 0},
 220         {wxT("YELLOW GREEN"), 153, 204, 50},
 221         {wxT("MEDIUM GOLDENROD"), 234, 234, 173},
 222         {wxT("MEDIUM FOREST GREEN"), 107, 142, 35},
 223         {wxT("LIGHT MAGENTA"), 255, 0, 255},
 224         {wxT("MEDIUM GREY"), 100, 100, 100},
 225     };
 226
 227     for ( size_t n = 0; n < WXSIZEOF(wxColourTable); n++ )
 228     {
 229         const wxColourDesc& cc = wxColourTable[n];
 230         Append(cc.name, new wxColour(cc.r,cc.g,cc.b));
 231     }
 232 }
 233
 234 /*
 235  * Changed by Ian Brown, July 1994.
 236  *
 237  * When running under X, the Colour Database starts off empty. The X server
 238  * is queried for the colour first time after which it is entered into the
 239  * database. This allows our client to use the server colour database which
 240  * is hopefully gamma corrected for the display being used.
 241  */
 242
 243 wxColour *wxColourDatabase::FindColour(const wxString& colour)
 244 {
 245     // VZ: make the comparaison case insensitive and also match both grey and
 246     //     gray
 247     wxString colName = colour;
 248     colName.MakeUpper();
 249     wxString colName2 = colName;
 250     if ( !colName2.Replace(_T("GRAY"), _T("GREY")) )
 251         colName2.clear();
 252
 253     wxNode *node = First();
 254     while ( node )
 255     {
 256         const wxChar *key = node->GetKeyString();
 257         if ( colName == key || colName2 == key )
 258         {
 259             return (wxColour *)node->Data();
 260         }
 261
 262         node = node->Next();
 263     }
 264
 265 #ifdef __WXMSW__
 266   return NULL;
 267 #endif
 268 #ifdef __WXPM__
 269   return NULL;
 270 #endif
 271
 272 // TODO for other implementations. This should really go into
 273 // platform-specific directories.
 274 #ifdef __WXMAC__
 275   return NULL;
 276 #endif
 277 #ifdef __WXSTUBS__
 278   return NULL;
 279 #endif
 280
 281 #ifdef __WXGTK__
 282   wxColour *col = new wxColour( colour );
 283
 284   if (!(col->Ok())) {
 285       delete col;
 286       return (wxColour *) NULL;
 287   }
 288   Append( colour, col );
 289   return col;
 290 #endif
 291
 292 #ifdef __X__
 293     XColor xcolour;
 294
 295 #ifdef __WXMOTIF__
 296     Display *display = XtDisplay((Widget) wxTheApp->GetTopLevelWidget()) ;
 297 #endif
 298 #ifdef __XVIEW__
 299     Xv_Screen screen = xv_get(xview_server, SERVER_NTH_SCREEN, 0);
 300     Xv_opaque root_window = xv_get(screen, XV_ROOT);
 301     Display *display = (Display *)xv_get(root_window, XV_DISPLAY);
 302 #endif
 303
 304     /* MATTHEW: [4] Use wxGetMainColormap */
 305     if (!XParseColor(display, (Colormap) wxTheApp->GetMainColormap((WXDisplay*) display), colour,&xcolour))
 306       return NULL;
 307
 308     unsigned char r = (unsigned char)(xcolour.red >> 8);
 309     unsigned char g = (unsigned char)(xcolour.green >> 8);
 310     unsigned char b = (unsigned char)(xcolour.blue >> 8);
 311
 312     wxColour *col = new wxColour(r, g, b);
 313     Append(colour, col);
 314
 315     return col;
 316 #endif // __X__
 317 }
 318
 319 wxString wxColourDatabase::FindName (const wxColour& colour) const
 320 {
 321     wxString name;
 322
 323     unsigned char red = colour.Red ();
 324     unsigned char green = colour.Green ();
 325     unsigned char blue = colour.Blue ();
 326
 327     for (wxNode * node = First (); node; node = node->Next ())
 328     {
 329         wxColour *col = (wxColour *) node->Data ();
 330
 331         if (col->Red () == red && col->Green () == green && col->Blue () == blue)
 332         {
 333             const wxChar *found = node->GetKeyString();
 334             if ( found )
 335             {
 336                 name = found;
 337
 338                 break;
 339             }
 340         }
 341     }
 342
 343     return name;
 344 }
 345
 346 void wxInitializeStockLists () {
 347   wxTheBrushList = new wxBrushList;
 348   wxThePenList = new wxPenList;
 349   wxTheFontList = new wxFontList;
 350   wxTheBitmapList = new wxBitmapList;
 351 }
 352
 353 void wxInitializeStockObjects ()
 354 {
 355 #ifdef __WXMOTIF__
 356 #endif
 357 #ifdef __X__
 358   // TODO
 359   //  wxFontPool = new XFontPool;
 360 #endif
 361
 362   // why under MSW fonts shouldn't have the standard system size?
 363 #ifdef __WXMSW__
 364   static const int sizeFont = 10;
 365 #else
 366   static const int sizeFont = 12;
 367 #endif
 368
 369   wxNORMAL_FONT = new wxFont (sizeFont, wxMODERN, wxNORMAL, wxNORMAL);
 370   wxSMALL_FONT = new wxFont (sizeFont - 2, wxSWISS, wxNORMAL, wxNORMAL);
 371   wxITALIC_FONT = new wxFont (sizeFont, wxROMAN, wxITALIC, wxNORMAL);
 372   wxSWISS_FONT = new wxFont (sizeFont, wxSWISS, wxNORMAL, wxNORMAL);
 373
 374   wxRED_PEN = new wxPen ("RED", 1, wxSOLID);
 375   wxCYAN_PEN = new wxPen ("CYAN", 1, wxSOLID);
 376   wxGREEN_PEN = new wxPen ("GREEN", 1, wxSOLID);
 377   wxBLACK_PEN = new wxPen ("BLACK", 1, wxSOLID);
 378   wxWHITE_PEN = new wxPen ("WHITE", 1, wxSOLID);
 379   wxTRANSPARENT_PEN = new wxPen ("BLACK", 1, wxTRANSPARENT);
 380   wxBLACK_DASHED_PEN = new wxPen ("BLACK", 1, wxSHORT_DASH);
 381   wxGREY_PEN = new wxPen ("GREY", 1, wxSOLID);
 382   wxMEDIUM_GREY_PEN = new wxPen ("MEDIUM GREY", 1, wxSOLID);
 383   wxLIGHT_GREY_PEN = new wxPen ("LIGHT GREY", 1, wxSOLID);
 384
 385   wxBLUE_BRUSH = new wxBrush ("BLUE", wxSOLID);
 386   wxGREEN_BRUSH = new wxBrush ("GREEN", wxSOLID);
 387   wxWHITE_BRUSH = new wxBrush ("WHITE", wxSOLID);
 388   wxBLACK_BRUSH = new wxBrush ("BLACK", wxSOLID);
 389   wxTRANSPARENT_BRUSH = new wxBrush ("BLACK", wxTRANSPARENT);
 390   wxCYAN_BRUSH = new wxBrush ("CYAN", wxSOLID);
 391   wxRED_BRUSH = new wxBrush ("RED", wxSOLID);
 392   wxGREY_BRUSH = new wxBrush ("GREY", wxSOLID);
 393   wxMEDIUM_GREY_BRUSH = new wxBrush ("MEDIUM GREY", wxSOLID);
 394   wxLIGHT_GREY_BRUSH = new wxBrush ("LIGHT GREY", wxSOLID);
 395
 396   wxBLACK = new wxColour ("BLACK");
 397   wxWHITE = new wxColour ("WHITE");
 398   wxRED = new wxColour ("RED");
 399   wxBLUE = new wxColour ("BLUE");
 400   wxGREEN = new wxColour ("GREEN");
 401   wxCYAN = new wxColour ("CYAN");
 402   wxLIGHT_GREY = new wxColour ("LIGHT GREY");
 403
 404   wxSTANDARD_CURSOR = new wxCursor (wxCURSOR_ARROW);
 405   wxHOURGLASS_CURSOR = new wxCursor (wxCURSOR_WAIT);
 406   wxCROSS_CURSOR = new wxCursor (wxCURSOR_CROSS);
 407 }
 408
 409 void wxDeleteStockObjects ()
 410 {
 411   wxDELETE(wxNORMAL_FONT);
 412   wxDELETE(wxSMALL_FONT);
 413   wxDELETE(wxITALIC_FONT);
 414   wxDELETE(wxSWISS_FONT);
 415
 416   wxDELETE(wxRED_PEN);
 417   wxDELETE(wxCYAN_PEN);
 418   wxDELETE(wxGREEN_PEN);
 419   wxDELETE(wxBLACK_PEN);
 420   wxDELETE(wxWHITE_PEN);
 421   wxDELETE(wxTRANSPARENT_PEN);
 422   wxDELETE(wxBLACK_DASHED_PEN);
 423   wxDELETE(wxGREY_PEN);
 424   wxDELETE(wxMEDIUM_GREY_PEN);
 425   wxDELETE(wxLIGHT_GREY_PEN);
 426
 427   wxDELETE(wxBLUE_BRUSH);
 428   wxDELETE(wxGREEN_BRUSH);
 429   wxDELETE(wxWHITE_BRUSH);
 430   wxDELETE(wxBLACK_BRUSH);
 431   wxDELETE(wxTRANSPARENT_BRUSH);
 432   wxDELETE(wxCYAN_BRUSH);
 433   wxDELETE(wxRED_BRUSH);
 434   wxDELETE(wxGREY_BRUSH);
 435   wxDELETE(wxMEDIUM_GREY_BRUSH);
 436   wxDELETE(wxLIGHT_GREY_BRUSH);
 437
 438   wxDELETE(wxBLACK);
 439   wxDELETE(wxWHITE);
 440   wxDELETE(wxRED);
 441   wxDELETE(wxBLUE);
 442   wxDELETE(wxGREEN);
 443   wxDELETE(wxCYAN);
 444   wxDELETE(wxLIGHT_GREY);
 445
 446   wxDELETE(wxSTANDARD_CURSOR);
 447   wxDELETE(wxHOURGLASS_CURSOR);
 448   wxDELETE(wxCROSS_CURSOR);
 449 }
 450
 451 void wxDeleteStockLists() {
 452   wxDELETE(wxTheBrushList);
 453   wxDELETE(wxThePenList);
 454   wxDELETE(wxTheFontList);
 455   wxDELETE(wxTheBitmapList);
 456 }
 457
 458 wxBitmapList::wxBitmapList ()
 459 {
 460 }
 461
 462 wxBitmapList::~wxBitmapList ()
 463 {
 464   wxNode *node = First ();
 465   while (node)
 466     {
 467       wxBitmap *bitmap = (wxBitmap *) node->Data ();
 468       wxNode *next = node->Next ();
 469       if (bitmap->GetVisible())
 470         delete bitmap;
 471       node = next;
 472     }
 473 }
 474
 475 // Pen and Brush lists
 476 wxPenList::~wxPenList ()
 477 {
 478   wxNode *node = First ();
 479   while (node)
 480     {
 481       wxPen *pen = (wxPen *) node->Data ();
 482       wxNode *next = node->Next ();
 483       if (pen->GetVisible())
 484         delete pen;
 485       node = next;
 486     }
 487 }
 488
 489 void wxPenList::AddPen (wxPen * pen)
 490 {
 491   Append (pen);
 492 }
 493
 494 void wxPenList::RemovePen (wxPen * pen)
 495 {
 496   DeleteObject (pen);
 497 }
 498
 499 wxPen *wxPenList::FindOrCreatePen (const wxColour& colour, int width, int style)
 500 {
 501   for (wxNode * node = First (); node; node = node->Next ())
 502     {
 503       wxPen *each_pen = (wxPen *) node->Data ();
 504       if (each_pen &&
 505           each_pen->GetVisible() &&
 506           each_pen->GetWidth () == width &&
 507           each_pen->GetStyle () == style &&
 508           each_pen->GetColour ().Red () == colour.Red () &&
 509           each_pen->GetColour ().Green () == colour.Green () &&
 510           each_pen->GetColour ().Blue () == colour.Blue ())
 511         return each_pen;
 512     }
 513   wxPen *pen = new wxPen (colour, width, style);
 514
 515   // Yes, we can return a pointer to this in a later FindOrCreatePen call,
 516   // because we created it within FindOrCreatePen. Safeguards against
 517   // returning a pointer to an automatic variable and hanging on to it
 518   // (dangling pointer).
 519   pen->SetVisible(TRUE);
 520
 521   return pen;
 522 }
 523
 524 wxBrushList::~wxBrushList ()
 525 {
 526   wxNode *node = First ();
 527   while (node)
 528     {
 529       wxBrush *brush = (wxBrush *) node->Data ();
 530       wxNode *next = node->Next ();
 531       if (brush->GetVisible())
 532         delete brush;
 533       node = next;
 534     }
 535 }
 536
 537 void wxBrushList::AddBrush (wxBrush * brush)
 538 {
 539   Append (brush);
 540 }
 541
 542 wxBrush *wxBrushList::FindOrCreateBrush (const wxColour& colour, int style)
 543 {
 544   for (wxNode * node = First (); node; node = node->Next ())
 545     {
 546       wxBrush *each_brush = (wxBrush *) node->Data ();
 547       if (each_brush &&
 548           each_brush->GetVisible() &&
 549           each_brush->GetStyle () == style &&
 550           each_brush->GetColour ().Red () == colour.Red () &&
 551           each_brush->GetColour ().Green () == colour.Green () &&
 552           each_brush->GetColour ().Blue () == colour.Blue ())
 553         return each_brush;
 554     }
 555
 556   // Yes, we can return a pointer to this in a later FindOrCreateBrush call,
 557   // because we created it within FindOrCreateBrush. Safeguards against
 558   // returning a pointer to an automatic variable and hanging on to it
 559   // (dangling pointer).
 560   wxBrush *brush = new wxBrush (colour, style);
 561
 562   brush->SetVisible(TRUE);
 563
 564   return brush;
 565 }
 566
 567 void wxBrushList::RemoveBrush (wxBrush * brush)
 568 {
 569   DeleteObject (brush);
 570 }
 571
 572 wxFontList::~wxFontList ()
 573 {
 574     wxNode *node = First ();
 575     while (node)
 576     {
 577         // Only delete objects that are 'visible', i.e.
 578         // that have been created using FindOrCreate...,
 579         // where the pointers are expected to be shared
 580         // (and therefore not deleted by any one part of an app).
 581         wxFont *font = (wxFont *) node->Data ();
 582         wxNode *next = node->Next ();
 583         if (font->GetVisible())
 584             delete font;
 585         node = next;
 586     }
 587 }
 588
 589 void wxFontList::AddFont (wxFont * font)
 590 {
 591   Append (font);
 592 }
 593
 594 void wxFontList::RemoveFont (wxFont * font)
 595 {
 596   DeleteObject (font);
 597 }
 598
 599 wxFont *wxFontList::FindOrCreateFont(int pointSize,
 600                                      int family,
 601                                      int style,
 602                                      int weight,
 603                                      bool underline,
 604                                      const wxString& facename,
 605                                      wxFontEncoding encoding)
 606 {
 607     wxFont *font = (wxFont *)NULL;
 608     wxNode *node;
 609     for ( node = First(); node; node = node->Next() )
 610     {
 611         font = (wxFont *)node->Data();
 612         if ( font->GetVisible() &&
 613              font->Ok() &&
 614              font->GetPointSize () == pointSize &&
 615              font->GetStyle () == style &&
 616              font->GetWeight () == weight &&
 617              font->GetUnderlined () == underline )
 618         {
 619             int fontFamily = font->GetFamily();
 620
 621 #if defined(__WXGTK__)
 622             // under GTK the default family is wxSWISS, so looking for a font
 623             // with wxDEFAULT family should return a wxSWISS one instead of
 624             // creating a new one
 625             bool same = (fontFamily == family) ||
 626                         (fontFamily == wxSWISS && family == wxDEFAULT);
 627 #else // !GTK
 628             // VZ: but why elsewhere do we require an exact match? mystery...
 629             bool same = fontFamily == family;
 630 #endif // GTK/!GTK
 631
 632             // empty facename matches anything at all: this is bad because
 633             // depending on which fonts are already created, we might get back
 634             // a different font if we create it with empty facename, but it is
 635             // still better than never matching anything in the cache at all
 636             // in this case
 637             if ( same && !!facename )
 638             {
 639                 const wxString& fontFace = font->GetFaceName();
 640
 641                 // empty facename matches everything
 642                 same = !fontFace || fontFace == facename;
 643             }
 644
 645             if ( same && (encoding != wxFONTENCODING_DEFAULT) )
 646             {
 647                 // have to match the encoding too
 648                 same = font->GetEncoding() == encoding;
 649             }
 650
 651             if ( same )
 652             {
 653                 return font;
 654             }
 655         }
 656     }
 657
 658     if ( !node )
 659     {
 660         // font not found, create the new one
 661         font = new wxFont(pointSize, family, style, weight,
 662                           underline, facename, encoding);
 663
 664         // and mark it as being cacheable
 665         font->SetVisible(TRUE);
 666     }
 667
 668     return font;
 669 }
 670
 671 void wxBitmapList::AddBitmap(wxBitmap *bitmap)
 672 {
 673     Append(bitmap);
 674 }
 675
 676 void wxBitmapList::RemoveBitmap(wxBitmap *bitmap)
 677 {
 678     DeleteObject(bitmap);
 679 }
 680
 681 wxSize wxGetDisplaySize()
 682 {
 683     int x, y;
 684     wxDisplaySize(& x, & y);
 685     return wxSize(x, y);
 686 }
 687
 688 wxResourceCache::~wxResourceCache ()
 689 {
 690     wxNode *node = First ();
 691     while (node) {
 692         wxObject *item = (wxObject *)node->Data();
 693         delete item;
 694
 695         node = node->Next ();
 696     }
 697 }
 698