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 #include "wx/settings.h"
  40
  41 #include "wx/log.h"
  42 #include <string.h>
  43
  44 #ifdef __WXMSW__
  45 #include <windows.h>
  46 #endif
  47
  48 #ifdef __WXMOTIF__
  49 #ifdef __VMS__
  50 #pragma message disable nosimpint
  51 #endif
  52 #include <Xm/Xm.h>
  53 #ifdef __VMS__
  54 #pragma message enable nosimpint
  55 #endif
  56 #endif
  57
  58 IMPLEMENT_CLASS(wxColourDatabase, wxList)
  59 IMPLEMENT_DYNAMIC_CLASS(wxFontList, wxList)
  60 IMPLEMENT_DYNAMIC_CLASS(wxPenList, wxList)
  61 IMPLEMENT_DYNAMIC_CLASS(wxBrushList, wxList)
  62 IMPLEMENT_DYNAMIC_CLASS(wxBitmapList, wxList)
  63 IMPLEMENT_DYNAMIC_CLASS(wxResourceCache, wxList)
  64
  65 IMPLEMENT_ABSTRACT_CLASS(wxDCBase, wxObject)
  66
  67 wxRect::wxRect(const wxPoint& topLeft, const wxPoint& bottomRight)
  68 {
  69   x = topLeft.x;
  70   y = topLeft.y;
  71   width = bottomRight.x - topLeft.x + 1;
  72   height = bottomRight.y - topLeft.y + 1;
  73
  74   if (width < 0)
  75   {
  76     width = -width;
  77     x -= width;
  78   }
  79
  80   if (height < 0)
  81   {
  82     height = -height;
  83     y -= height;
  84   }
  85 }
  86
  87 wxRect::wxRect(const wxPoint& point, const wxSize& size)
  88 {
  89     x = point.x; y = point.y;
  90     width = size.x; height = size.y;
  91 }
  92
  93 bool wxRect::operator==(const wxRect& rect) const
  94 {
  95   return ((x == rect.x) &&
  96           (y == rect.y) &&
  97           (width == rect.width) &&
  98           (height == rect.height));
  99 }
 100
 101 wxRect& wxRect::operator += (const wxRect& rect)
 102 {
 103     *this = (*this + rect);
 104     return ( *this ) ;
 105 }
 106
 107 wxRect wxRect::operator + (const wxRect& rect) const
 108 {
 109     int x1 = wxMin(this->x, rect.x);
 110     int y1 = wxMin(this->y, rect.y);
 111     int y2 = wxMax(y+height, rect.height+rect.y);
 112     int x2 = wxMax(x+width, rect.width+rect.x);
 113     return wxRect(x1, y1, x2-x1, y2-y1);
 114 }
 115
 116 bool wxRect::Inside(int cx, int cy) const
 117 {
 118     return ( (cx >= x) && (cy >= y)
 119           && ((cy - y) < height)
 120           && ((cx - x) < width)
 121           );
 122 }
 123
 124 wxColourDatabase::wxColourDatabase (int type) : wxList (type)
 125 {
 126 }
 127
 128 wxColourDatabase::~wxColourDatabase ()
 129 {
 130   // Cleanup Colour allocated in Initialize()
 131   wxNode *node = First ();
 132   while (node)
 133     {
 134       wxColour *col = (wxColour *) node->Data ();
 135       wxNode *next = node->Next ();
 136       delete col;
 137       node = next;
 138     }
 139 }
 140
 141 // Colour database stuff
 142 void wxColourDatabase::Initialize ()
 143 {
 144     static const struct wxColourDesc
 145     {
 146         const wxChar *name;
 147         int r,g,b;
 148     }
 149     wxColourTable[] =
 150     {
 151         {wxT("AQUAMARINE"),112, 219, 147},
 152         {wxT("BLACK"),0, 0, 0},
 153         {wxT("BLUE"), 0, 0, 255},
 154         {wxT("BLUE VIOLET"), 159, 95, 159},
 155         {wxT("BROWN"), 165, 42, 42},
 156         {wxT("CADET BLUE"), 95, 159, 159},
 157         {wxT("CORAL"), 255, 127, 0},
 158         {wxT("CORNFLOWER BLUE"), 66, 66, 111},
 159         {wxT("CYAN"), 0, 255, 255},
 160         {wxT("DARK GREY"), 47, 47, 47},   // ?
 161
 162         {wxT("DARK GREEN"), 47, 79, 47},
 163         {wxT("DARK OLIVE GREEN"), 79, 79, 47},
 164         {wxT("DARK ORCHID"), 153, 50, 204},
 165         {wxT("DARK SLATE BLUE"), 107, 35, 142},
 166         {wxT("DARK SLATE GREY"), 47, 79, 79},
 167         {wxT("DARK TURQUOISE"), 112, 147, 219},
 168         {wxT("DIM GREY"), 84, 84, 84},
 169         {wxT("FIREBRICK"), 142, 35, 35},
 170         {wxT("FOREST GREEN"), 35, 142, 35},
 171         {wxT("GOLD"), 204, 127, 50},
 172         {wxT("GOLDENROD"), 219, 219, 112},
 173         {wxT("GREY"), 128, 128, 128},
 174         {wxT("GREEN"), 0, 255, 0},
 175         {wxT("GREEN YELLOW"), 147, 219, 112},
 176         {wxT("INDIAN RED"), 79, 47, 47},
 177         {wxT("KHAKI"), 159, 159, 95},
 178         {wxT("LIGHT BLUE"), 191, 216, 216},
 179         {wxT("LIGHT GREY"), 192, 192, 192},
 180         {wxT("LIGHT STEEL BLUE"), 143, 143, 188},
 181         {wxT("LIME GREEN"), 50, 204, 50},
 182         {wxT("LIGHT MAGENTA"), 255, 0, 255},
 183         {wxT("MAGENTA"), 255, 0, 255},
 184         {wxT("MAROON"), 142, 35, 107},
 185         {wxT("MEDIUM AQUAMARINE"), 50, 204, 153},
 186         {wxT("MEDIUM GREY"), 100, 100, 100},
 187         {wxT("MEDIUM BLUE"), 50, 50, 204},
 188         {wxT("MEDIUM FOREST GREEN"), 107, 142, 35},
 189         {wxT("MEDIUM GOLDENROD"), 234, 234, 173},
 190         {wxT("MEDIUM ORCHID"), 147, 112, 219},
 191         {wxT("MEDIUM SEA GREEN"), 66, 111, 66},
 192         {wxT("MEDIUM SLATE BLUE"), 127, 0, 255},
 193         {wxT("MEDIUM SPRING GREEN"), 127, 255, 0},
 194         {wxT("MEDIUM TURQUOISE"), 112, 219, 219},
 195         {wxT("MEDIUM VIOLET RED"), 219, 112, 147},
 196         {wxT("MIDNIGHT BLUE"), 47, 47, 79},
 197         {wxT("NAVY"), 35, 35, 142},
 198         {wxT("ORANGE"), 204, 50, 50},
 199         {wxT("ORANGE RED"), 255, 0, 127},
 200         {wxT("ORCHID"), 219, 112, 219},
 201         {wxT("PALE GREEN"), 143, 188, 143},
 202         {wxT("PINK"), 188, 143, 234},
 203         {wxT("PLUM"), 234, 173, 234},
 204         {wxT("PURPLE"), 176, 0, 255},
 205         {wxT("RED"), 255, 0, 0},
 206         {wxT("SALMON"), 111, 66, 66},
 207         {wxT("SEA GREEN"), 35, 142, 107},
 208         {wxT("SIENNA"), 142, 107, 35},
 209         {wxT("SKY BLUE"), 50, 153, 204},
 210         {wxT("SLATE BLUE"), 0, 127, 255},
 211         {wxT("SPRING GREEN"), 0, 255, 127},
 212         {wxT("STEEL BLUE"), 35, 107, 142},
 213         {wxT("TAN"), 219, 147, 112},
 214         {wxT("THISTLE"), 216, 191, 216},
 215         {wxT("TURQUOISE"), 173, 234, 234},
 216         {wxT("VIOLET"), 79, 47, 79},
 217         {wxT("VIOLET RED"), 204, 50, 153},
 218         {wxT("WHEAT"), 216, 216, 191},
 219         {wxT("WHITE"), 255, 255, 255},
 220         {wxT("YELLOW"), 255, 255, 0},
 221         {wxT("YELLOW GREEN"), 153, 204, 50},
 222         {wxT("MEDIUM GOLDENROD"), 234, 234, 173},
 223         {wxT("MEDIUM FOREST GREEN"), 107, 142, 35},
 224         {wxT("LIGHT MAGENTA"), 255, 0, 255},
 225         {wxT("MEDIUM GREY"), 100, 100, 100},
 226     };
 227
 228     for ( size_t n = 0; n < WXSIZEOF(wxColourTable); n++ )
 229     {
 230         const wxColourDesc& cc = wxColourTable[n];
 231         Append(cc.name, new wxColour(cc.r,cc.g,cc.b));
 232     }
 233 }
 234
 235 /*
 236  * Changed by Ian Brown, July 1994.
 237  *
 238  * When running under X, the Colour Database starts off empty. The X server
 239  * is queried for the colour first time after which it is entered into the
 240  * database. This allows our client to use the server colour database which
 241  * is hopefully gamma corrected for the display being used.
 242  */
 243
 244 wxColour *wxColourDatabase::FindColour(const wxString& colour)
 245 {
 246     // VZ: make the comparaison case insensitive and also match both grey and
 247     //     gray
 248     wxString colName = colour;
 249     colName.MakeUpper();
 250     wxString colName2 = colName;
 251     if ( !colName2.Replace(_T("GRAY"), _T("GREY")) )
 252         colName2.clear();
 253
 254     wxNode *node = First();
 255     while ( node )
 256     {
 257         const wxChar *key = node->GetKeyString();
 258         if ( colName == key || colName2 == key )
 259         {
 260             return (wxColour *)node->Data();
 261         }
 262
 263         node = node->Next();
 264     }
 265
 266 #ifdef __WXMSW__
 267   return NULL;
 268 #endif
 269 #ifdef __WXPM__
 270   return NULL;
 271 #endif
 272
 273 // TODO for other implementations. This should really go into
 274 // platform-specific directories.
 275 #ifdef __WXMAC__
 276   return NULL;
 277 #endif
 278 #ifdef __WXSTUBS__
 279   return NULL;
 280 #endif
 281
 282 #ifdef __WXGTK__
 283   wxColour *col = new wxColour( colour );
 284
 285   if (!(col->Ok())) {
 286       delete col;
 287       return (wxColour *) NULL;
 288   }
 289   Append( colour, col );
 290   return col;
 291 #endif
 292
 293 #ifdef __X__
 294     XColor xcolour;
 295
 296 #ifdef __WXMOTIF__
 297     Display *display = XtDisplay((Widget) wxTheApp->GetTopLevelWidget()) ;
 298 #endif
 299 #ifdef __XVIEW__
 300     Xv_Screen screen = xv_get(xview_server, SERVER_NTH_SCREEN, 0);
 301     Xv_opaque root_window = xv_get(screen, XV_ROOT);
 302     Display *display = (Display *)xv_get(root_window, XV_DISPLAY);
 303 #endif
 304
 305     /* MATTHEW: [4] Use wxGetMainColormap */
 306     if (!XParseColor(display, (Colormap) wxTheApp->GetMainColormap((WXDisplay*) display), colour,&xcolour))
 307       return NULL;
 308
 309     unsigned char r = (unsigned char)(xcolour.red >> 8);
 310     unsigned char g = (unsigned char)(xcolour.green >> 8);
 311     unsigned char b = (unsigned char)(xcolour.blue >> 8);
 312
 313     wxColour *col = new wxColour(r, g, b);
 314     Append(colour, col);
 315
 316     return col;
 317 #endif // __X__
 318 }
 319
 320 wxString wxColourDatabase::FindName (const wxColour& colour) const
 321 {
 322     wxString name;
 323
 324     unsigned char red = colour.Red ();
 325     unsigned char green = colour.Green ();
 326     unsigned char blue = colour.Blue ();
 327
 328     for (wxNode * node = First (); node; node = node->Next ())
 329     {
 330         wxColour *col = (wxColour *) node->Data ();
 331
 332         if (col->Red () == red && col->Green () == green && col->Blue () == blue)
 333         {
 334             const wxChar *found = node->GetKeyString();
 335             if ( found )
 336             {
 337                 name = found;
 338
 339                 break;
 340             }
 341         }
 342     }
 343
 344     return name;
 345 }
 346
 347 void wxInitializeStockLists () {
 348   wxTheBrushList = new wxBrushList;
 349   wxThePenList = new wxPenList;
 350   wxTheFontList = new wxFontList;
 351   wxTheBitmapList = new wxBitmapList;
 352 }
 353
 354 void wxInitializeStockObjects ()
 355 {
 356 #ifdef __WXMOTIF__
 357 #endif
 358 #ifdef __X__
 359   // TODO
 360   //  wxFontPool = new XFontPool;
 361 #endif
 362
 363   // why under MSW fonts shouldn't have the standard system size?
 364 /*
 365 #ifdef __WXMSW__
 366   static const int sizeFont = 10;
 367 #else
 368 #endif
 369 */
 370 #if defined(__WXPM__)
 371   static const int sizeFont = 12;
 372   wxNORMAL_FONT = new wxFont (sizeFont, wxMODERN, wxNORMAL, wxNORMAL);
 373 #else
 374   wxNORMAL_FONT = new wxFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
 375   static const int sizeFont = wxNORMAL_FONT->GetPointSize();
 376 #endif
 377
 378   wxSMALL_FONT = new wxFont (sizeFont - 2, wxSWISS, wxNORMAL, wxNORMAL);
 379   wxITALIC_FONT = new wxFont (sizeFont, wxROMAN, wxITALIC, wxNORMAL);
 380   wxSWISS_FONT = new wxFont (sizeFont, wxSWISS, wxNORMAL, wxNORMAL);
 381
 382   wxRED_PEN = new wxPen ("RED", 1, wxSOLID);
 383   wxCYAN_PEN = new wxPen ("CYAN", 1, wxSOLID);
 384   wxGREEN_PEN = new wxPen ("GREEN", 1, wxSOLID);
 385   wxBLACK_PEN = new wxPen ("BLACK", 1, wxSOLID);
 386   wxWHITE_PEN = new wxPen ("WHITE", 1, wxSOLID);
 387   wxTRANSPARENT_PEN = new wxPen ("BLACK", 1, wxTRANSPARENT);
 388   wxBLACK_DASHED_PEN = new wxPen ("BLACK", 1, wxSHORT_DASH);
 389   wxGREY_PEN = new wxPen ("GREY", 1, wxSOLID);
 390   wxMEDIUM_GREY_PEN = new wxPen ("MEDIUM GREY", 1, wxSOLID);
 391   wxLIGHT_GREY_PEN = new wxPen ("LIGHT GREY", 1, wxSOLID);
 392
 393   wxBLUE_BRUSH = new wxBrush ("BLUE", wxSOLID);
 394   wxGREEN_BRUSH = new wxBrush ("GREEN", wxSOLID);
 395   wxWHITE_BRUSH = new wxBrush ("WHITE", wxSOLID);
 396   wxBLACK_BRUSH = new wxBrush ("BLACK", wxSOLID);
 397   wxTRANSPARENT_BRUSH = new wxBrush ("BLACK", wxTRANSPARENT);
 398   wxCYAN_BRUSH = new wxBrush ("CYAN", wxSOLID);
 399   wxRED_BRUSH = new wxBrush ("RED", wxSOLID);
 400   wxGREY_BRUSH = new wxBrush ("GREY", wxSOLID);
 401   wxMEDIUM_GREY_BRUSH = new wxBrush ("MEDIUM GREY", wxSOLID);
 402   wxLIGHT_GREY_BRUSH = new wxBrush ("LIGHT GREY", wxSOLID);
 403
 404   wxBLACK = new wxColour ("BLACK");
 405   wxWHITE = new wxColour ("WHITE");
 406   wxRED = new wxColour ("RED");
 407   wxBLUE = new wxColour ("BLUE");
 408   wxGREEN = new wxColour ("GREEN");
 409   wxCYAN = new wxColour ("CYAN");
 410   wxLIGHT_GREY = new wxColour ("LIGHT GREY");
 411
 412   wxSTANDARD_CURSOR = new wxCursor (wxCURSOR_ARROW);
 413   wxHOURGLASS_CURSOR = new wxCursor (wxCURSOR_WAIT);
 414   wxCROSS_CURSOR = new wxCursor (wxCURSOR_CROSS);
 415 }
 416
 417 void wxDeleteStockObjects ()
 418 {
 419   wxDELETE(wxNORMAL_FONT);
 420   wxDELETE(wxSMALL_FONT);
 421   wxDELETE(wxITALIC_FONT);
 422   wxDELETE(wxSWISS_FONT);
 423
 424   wxDELETE(wxRED_PEN);
 425   wxDELETE(wxCYAN_PEN);
 426   wxDELETE(wxGREEN_PEN);
 427   wxDELETE(wxBLACK_PEN);
 428   wxDELETE(wxWHITE_PEN);
 429   wxDELETE(wxTRANSPARENT_PEN);
 430   wxDELETE(wxBLACK_DASHED_PEN);
 431   wxDELETE(wxGREY_PEN);
 432   wxDELETE(wxMEDIUM_GREY_PEN);
 433   wxDELETE(wxLIGHT_GREY_PEN);
 434
 435   wxDELETE(wxBLUE_BRUSH);
 436   wxDELETE(wxGREEN_BRUSH);
 437   wxDELETE(wxWHITE_BRUSH);
 438   wxDELETE(wxBLACK_BRUSH);
 439   wxDELETE(wxTRANSPARENT_BRUSH);
 440   wxDELETE(wxCYAN_BRUSH);
 441   wxDELETE(wxRED_BRUSH);
 442   wxDELETE(wxGREY_BRUSH);
 443   wxDELETE(wxMEDIUM_GREY_BRUSH);
 444   wxDELETE(wxLIGHT_GREY_BRUSH);
 445
 446   wxDELETE(wxBLACK);
 447   wxDELETE(wxWHITE);
 448   wxDELETE(wxRED);
 449   wxDELETE(wxBLUE);
 450   wxDELETE(wxGREEN);
 451   wxDELETE(wxCYAN);
 452   wxDELETE(wxLIGHT_GREY);
 453
 454   wxDELETE(wxSTANDARD_CURSOR);
 455   wxDELETE(wxHOURGLASS_CURSOR);
 456   wxDELETE(wxCROSS_CURSOR);
 457 }
 458
 459 void wxDeleteStockLists() {
 460   wxDELETE(wxTheBrushList);
 461   wxDELETE(wxThePenList);
 462   wxDELETE(wxTheFontList);
 463   wxDELETE(wxTheBitmapList);
 464 }
 465
 466 wxBitmapList::wxBitmapList ()
 467 {
 468 }
 469
 470 wxBitmapList::~wxBitmapList ()
 471 {
 472   wxNode *node = First ();
 473   while (node)
 474     {
 475       wxBitmap *bitmap = (wxBitmap *) node->Data ();
 476       wxNode *next = node->Next ();
 477       if (bitmap->GetVisible())
 478         delete bitmap;
 479       node = next;
 480     }
 481 }
 482
 483 // Pen and Brush lists
 484 wxPenList::~wxPenList ()
 485 {
 486   wxNode *node = First ();
 487   while (node)
 488     {
 489       wxPen *pen = (wxPen *) node->Data ();
 490       wxNode *next = node->Next ();
 491       if (pen->GetVisible())
 492         delete pen;
 493       node = next;
 494     }
 495 }
 496
 497 void wxPenList::AddPen (wxPen * pen)
 498 {
 499   Append (pen);
 500 }
 501
 502 void wxPenList::RemovePen (wxPen * pen)
 503 {
 504   DeleteObject (pen);
 505 }
 506
 507 wxPen *wxPenList::FindOrCreatePen (const wxColour& colour, int width, int style)
 508 {
 509   for (wxNode * node = First (); node; node = node->Next ())
 510     {
 511       wxPen *each_pen = (wxPen *) node->Data ();
 512       if (each_pen &&
 513           each_pen->GetVisible() &&
 514           each_pen->GetWidth () == width &&
 515           each_pen->GetStyle () == style &&
 516           each_pen->GetColour ().Red () == colour.Red () &&
 517           each_pen->GetColour ().Green () == colour.Green () &&
 518           each_pen->GetColour ().Blue () == colour.Blue ())
 519         return each_pen;
 520     }
 521   wxPen *pen = new wxPen (colour, width, style);
 522
 523   // Yes, we can return a pointer to this in a later FindOrCreatePen call,
 524   // because we created it within FindOrCreatePen. Safeguards against
 525   // returning a pointer to an automatic variable and hanging on to it
 526   // (dangling pointer).
 527   pen->SetVisible(TRUE);
 528
 529   return pen;
 530 }
 531
 532 wxBrushList::~wxBrushList ()
 533 {
 534   wxNode *node = First ();
 535   while (node)
 536     {
 537       wxBrush *brush = (wxBrush *) node->Data ();
 538       wxNode *next = node->Next ();
 539       if (brush->GetVisible())
 540         delete brush;
 541       node = next;
 542     }
 543 }
 544
 545 void wxBrushList::AddBrush (wxBrush * brush)
 546 {
 547   Append (brush);
 548 }
 549
 550 wxBrush *wxBrushList::FindOrCreateBrush (const wxColour& colour, int style)
 551 {
 552   for (wxNode * node = First (); node; node = node->Next ())
 553     {
 554       wxBrush *each_brush = (wxBrush *) node->Data ();
 555       if (each_brush &&
 556           each_brush->GetVisible() &&
 557           each_brush->GetStyle () == style &&
 558           each_brush->GetColour ().Red () == colour.Red () &&
 559           each_brush->GetColour ().Green () == colour.Green () &&
 560           each_brush->GetColour ().Blue () == colour.Blue ())
 561         return each_brush;
 562     }
 563
 564   // Yes, we can return a pointer to this in a later FindOrCreateBrush call,
 565   // because we created it within FindOrCreateBrush. Safeguards against
 566   // returning a pointer to an automatic variable and hanging on to it
 567   // (dangling pointer).
 568   wxBrush *brush = new wxBrush (colour, style);
 569
 570   brush->SetVisible(TRUE);
 571
 572   return brush;
 573 }
 574
 575 void wxBrushList::RemoveBrush (wxBrush * brush)
 576 {
 577   DeleteObject (brush);
 578 }
 579
 580 wxFontList::~wxFontList ()
 581 {
 582     wxNode *node = First ();
 583     while (node)
 584     {
 585         // Only delete objects that are 'visible', i.e.
 586         // that have been created using FindOrCreate...,
 587         // where the pointers are expected to be shared
 588         // (and therefore not deleted by any one part of an app).
 589         wxFont *font = (wxFont *) node->Data ();
 590         wxNode *next = node->Next ();
 591         if (font->GetVisible())
 592             delete font;
 593         node = next;
 594     }
 595 }
 596
 597 void wxFontList::AddFont (wxFont * font)
 598 {
 599   Append (font);
 600 }
 601
 602 void wxFontList::RemoveFont (wxFont * font)
 603 {
 604   DeleteObject (font);
 605 }
 606
 607 wxFont *wxFontList::FindOrCreateFont(int pointSize,
 608                                      int family,
 609                                      int style,
 610                                      int weight,
 611                                      bool underline,
 612                                      const wxString& facename,
 613                                      wxFontEncoding encoding)
 614 {
 615     wxFont *font = (wxFont *)NULL;
 616     wxNode *node;
 617     for ( node = First(); node; node = node->Next() )
 618     {
 619         font = (wxFont *)node->Data();
 620         if ( font->GetVisible() &&
 621              font->Ok() &&
 622              font->GetPointSize () == pointSize &&
 623              font->GetStyle () == style &&
 624              font->GetWeight () == weight &&
 625              font->GetUnderlined () == underline )
 626         {
 627             int fontFamily = font->GetFamily();
 628
 629 #if defined(__WXGTK__)
 630             // under GTK the default family is wxSWISS, so looking for a font
 631             // with wxDEFAULT family should return a wxSWISS one instead of
 632             // creating a new one
 633             bool same = (fontFamily == family) ||
 634                         (fontFamily == wxSWISS && family == wxDEFAULT);
 635 #else // !GTK
 636             // VZ: but why elsewhere do we require an exact match? mystery...
 637             bool same = fontFamily == family;
 638 #endif // GTK/!GTK
 639
 640             // empty facename matches anything at all: this is bad because
 641             // depending on which fonts are already created, we might get back
 642             // a different font if we create it with empty facename, but it is
 643             // still better than never matching anything in the cache at all
 644             // in this case
 645             if ( same && !!facename )
 646             {
 647                 const wxString& fontFace = font->GetFaceName();
 648
 649                 // empty facename matches everything
 650                 same = !fontFace || fontFace == facename;
 651             }
 652
 653             if ( same && (encoding != wxFONTENCODING_DEFAULT) )
 654             {
 655                 // have to match the encoding too
 656                 same = font->GetEncoding() == encoding;
 657             }
 658
 659             if ( same )
 660             {
 661                 return font;
 662             }
 663         }
 664     }
 665
 666     if ( !node )
 667     {
 668         // font not found, create the new one
 669         font = new wxFont(pointSize, family, style, weight,
 670                           underline, facename, encoding);
 671
 672         // and mark it as being cacheable
 673         font->SetVisible(TRUE);
 674     }
 675
 676     return font;
 677 }
 678
 679 void wxBitmapList::AddBitmap(wxBitmap *bitmap)
 680 {
 681     Append(bitmap);
 682 }
 683
 684 void wxBitmapList::RemoveBitmap(wxBitmap *bitmap)
 685 {
 686     DeleteObject(bitmap);
 687 }
 688
 689 wxSize wxGetDisplaySize()
 690 {
 691     int x, y;
 692     wxDisplaySize(& x, & y);
 693     return wxSize(x, y);
 694 }
 695
 696 wxSize wxGetDisplaySizeMM()
 697 {
 698     int x, y;
 699     wxDisplaySizeMM(& x, & y);
 700     return wxSize(x, y);
 701 }
 702
 703 wxResourceCache::~wxResourceCache ()
 704 {
 705     wxNode *node = First ();
 706     while (node) {
 707         wxObject *item = (wxObject *)node->Data();
 708         delete item;
 709
 710         node = node->Next ();
 711     }
 712 }
 713