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