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 #ifdef __WXPM__
 140     delete [] m_palTable;
 141 #endif
 142 }
 143
 144 // Colour database stuff
 145 void wxColourDatabase::Initialize ()
 146 {
 147     static const struct wxColourDesc
 148     {
 149         const wxChar *name;
 150         int r,g,b;
 151     }
 152     wxColourTable[] =
 153     {
 154         {wxT("AQUAMARINE"),112, 219, 147},
 155         {wxT("BLACK"),0, 0, 0},
 156         {wxT("BLUE"), 0, 0, 255},
 157         {wxT("BLUE VIOLET"), 159, 95, 159},
 158         {wxT("BROWN"), 165, 42, 42},
 159         {wxT("CADET BLUE"), 95, 159, 159},
 160         {wxT("CORAL"), 255, 127, 0},
 161         {wxT("CORNFLOWER BLUE"), 66, 66, 111},
 162         {wxT("CYAN"), 0, 255, 255},
 163         {wxT("DARK GREY"), 47, 47, 47},   // ?
 164
 165         {wxT("DARK GREEN"), 47, 79, 47},
 166         {wxT("DARK OLIVE GREEN"), 79, 79, 47},
 167         {wxT("DARK ORCHID"), 153, 50, 204},
 168         {wxT("DARK SLATE BLUE"), 107, 35, 142},
 169         {wxT("DARK SLATE GREY"), 47, 79, 79},
 170         {wxT("DARK TURQUOISE"), 112, 147, 219},
 171         {wxT("DIM GREY"), 84, 84, 84},
 172         {wxT("FIREBRICK"), 142, 35, 35},
 173         {wxT("FOREST GREEN"), 35, 142, 35},
 174         {wxT("GOLD"), 204, 127, 50},
 175         {wxT("GOLDENROD"), 219, 219, 112},
 176         {wxT("GREY"), 128, 128, 128},
 177         {wxT("GREEN"), 0, 255, 0},
 178         {wxT("GREEN YELLOW"), 147, 219, 112},
 179         {wxT("INDIAN RED"), 79, 47, 47},
 180         {wxT("KHAKI"), 159, 159, 95},
 181         {wxT("LIGHT BLUE"), 191, 216, 216},
 182         {wxT("LIGHT GREY"), 192, 192, 192},
 183         {wxT("LIGHT STEEL BLUE"), 143, 143, 188},
 184         {wxT("LIME GREEN"), 50, 204, 50},
 185         {wxT("LIGHT MAGENTA"), 255, 0, 255},
 186         {wxT("MAGENTA"), 255, 0, 255},
 187         {wxT("MAROON"), 142, 35, 107},
 188         {wxT("MEDIUM AQUAMARINE"), 50, 204, 153},
 189         {wxT("MEDIUM GREY"), 100, 100, 100},
 190         {wxT("MEDIUM BLUE"), 50, 50, 204},
 191         {wxT("MEDIUM FOREST GREEN"), 107, 142, 35},
 192         {wxT("MEDIUM GOLDENROD"), 234, 234, 173},
 193         {wxT("MEDIUM ORCHID"), 147, 112, 219},
 194         {wxT("MEDIUM SEA GREEN"), 66, 111, 66},
 195         {wxT("MEDIUM SLATE BLUE"), 127, 0, 255},
 196         {wxT("MEDIUM SPRING GREEN"), 127, 255, 0},
 197         {wxT("MEDIUM TURQUOISE"), 112, 219, 219},
 198         {wxT("MEDIUM VIOLET RED"), 219, 112, 147},
 199         {wxT("MIDNIGHT BLUE"), 47, 47, 79},
 200         {wxT("NAVY"), 35, 35, 142},
 201         {wxT("ORANGE"), 204, 50, 50},
 202         {wxT("ORANGE RED"), 255, 0, 127},
 203         {wxT("ORCHID"), 219, 112, 219},
 204         {wxT("PALE GREEN"), 143, 188, 143},
 205         {wxT("PINK"), 188, 143, 234},
 206         {wxT("PLUM"), 234, 173, 234},
 207         {wxT("PURPLE"), 176, 0, 255},
 208         {wxT("RED"), 255, 0, 0},
 209         {wxT("SALMON"), 111, 66, 66},
 210         {wxT("SEA GREEN"), 35, 142, 107},
 211         {wxT("SIENNA"), 142, 107, 35},
 212         {wxT("SKY BLUE"), 50, 153, 204},
 213         {wxT("SLATE BLUE"), 0, 127, 255},
 214         {wxT("SPRING GREEN"), 0, 255, 127},
 215         {wxT("STEEL BLUE"), 35, 107, 142},
 216         {wxT("TAN"), 219, 147, 112},
 217         {wxT("THISTLE"), 216, 191, 216},
 218         {wxT("TURQUOISE"), 173, 234, 234},
 219         {wxT("VIOLET"), 79, 47, 79},
 220         {wxT("VIOLET RED"), 204, 50, 153},
 221         {wxT("WHEAT"), 216, 216, 191},
 222         {wxT("WHITE"), 255, 255, 255},
 223         {wxT("YELLOW"), 255, 255, 0},
 224         {wxT("YELLOW GREEN"), 153, 204, 50},
 225         {wxT("MEDIUM GOLDENROD"), 234, 234, 173},
 226         {wxT("MEDIUM FOREST GREEN"), 107, 142, 35},
 227         {wxT("LIGHT MAGENTA"), 255, 0, 255},
 228         {wxT("MEDIUM GREY"), 100, 100, 100},
 229     };
 230
 231     for ( size_t n = 0; n < WXSIZEOF(wxColourTable); n++ )
 232     {
 233         const wxColourDesc& cc = wxColourTable[n];
 234         Append(cc.name, new wxColour(cc.r,cc.g,cc.b));
 235     }
 236 #ifdef __WXPM__
 237     m_palTable = new long[n];
 238     for ( n = 0; n < WXSIZEOF(wxColourTable); n++ )
 239     {
 240         const wxColourDesc& cc = wxColourTable[n];
 241         m_palTable[n] = OS2RGB(cc.r,cc.g,cc.b);
 242     }
 243     m_nSize = n;
 244 #endif
 245 }
 246
 247 /*
 248  * Changed by Ian Brown, July 1994.
 249  *
 250  * When running under X, the Colour Database starts off empty. The X server
 251  * is queried for the colour first time after which it is entered into the
 252  * database. This allows our client to use the server colour database which
 253  * is hopefully gamma corrected for the display being used.
 254  */
 255
 256 wxColour *wxColourDatabase::FindColour(const wxString& colour)
 257 {
 258     // VZ: make the comparaison case insensitive and also match both grey and
 259     //     gray
 260     wxString colName = colour;
 261     colName.MakeUpper();
 262     wxString colName2 = colName;
 263     if ( !colName2.Replace(_T("GRAY"), _T("GREY")) )
 264         colName2.clear();
 265
 266     wxNode *node = First();
 267     while ( node )
 268     {
 269         const wxChar *key = node->GetKeyString();
 270         if ( colName == key || colName2 == key )
 271         {
 272             return (wxColour *)node->Data();
 273         }
 274
 275         node = node->Next();
 276     }
 277
 278 #ifdef __WXMSW__
 279   return NULL;
 280 #endif
 281 #ifdef __WXPM__
 282   return NULL;
 283 #endif
 284
 285 // TODO for other implementations. This should really go into
 286 // platform-specific directories.
 287 #ifdef __WXMAC__
 288   return NULL;
 289 #endif
 290 #ifdef __WXSTUBS__
 291   return NULL;
 292 #endif
 293
 294 #ifdef __WXGTK__
 295   wxColour *col = new wxColour( colour );
 296
 297   if (!(col->Ok())) {
 298       delete col;
 299       return (wxColour *) NULL;
 300   }
 301   Append( colour, col );
 302   return col;
 303 #endif
 304
 305 #ifdef __X__
 306     XColor xcolour;
 307
 308 #ifdef __WXMOTIF__
 309     Display *display = XtDisplay((Widget) wxTheApp->GetTopLevelWidget()) ;
 310 #endif
 311 #ifdef __XVIEW__
 312     Xv_Screen screen = xv_get(xview_server, SERVER_NTH_SCREEN, 0);
 313     Xv_opaque root_window = xv_get(screen, XV_ROOT);
 314     Display *display = (Display *)xv_get(root_window, XV_DISPLAY);
 315 #endif
 316
 317     /* MATTHEW: [4] Use wxGetMainColormap */
 318     if (!XParseColor(display, (Colormap) wxTheApp->GetMainColormap((WXDisplay*) display), colour,&xcolour))
 319       return NULL;
 320
 321     unsigned char r = (unsigned char)(xcolour.red >> 8);
 322     unsigned char g = (unsigned char)(xcolour.green >> 8);
 323     unsigned char b = (unsigned char)(xcolour.blue >> 8);
 324
 325     wxColour *col = new wxColour(r, g, b);
 326     Append(colour, col);
 327
 328     return col;
 329 #endif // __X__
 330 }
 331
 332 wxString wxColourDatabase::FindName (const wxColour& colour) const
 333 {
 334     wxString name;
 335
 336     unsigned char red = colour.Red ();
 337     unsigned char green = colour.Green ();
 338     unsigned char blue = colour.Blue ();
 339
 340     for (wxNode * node = First (); node; node = node->Next ())
 341     {
 342         wxColour *col = (wxColour *) node->Data ();
 343
 344         if (col->Red () == red && col->Green () == green && col->Blue () == blue)
 345         {
 346             const wxChar *found = node->GetKeyString();
 347             if ( found )
 348             {
 349                 name = found;
 350
 351                 break;
 352             }
 353         }
 354     }
 355
 356     return name;
 357 }
 358
 359 void wxInitializeStockLists () {
 360   wxTheBrushList = new wxBrushList;
 361   wxThePenList = new wxPenList;
 362   wxTheFontList = new wxFontList;
 363   wxTheBitmapList = new wxBitmapList;
 364 }
 365
 366 void wxInitializeStockObjects ()
 367 {
 368 #ifdef __WXMOTIF__
 369 #endif
 370 #ifdef __X__
 371   // TODO
 372   //  wxFontPool = new XFontPool;
 373 #endif
 374
 375   // why under MSW fonts shouldn't have the standard system size?
 376 /*
 377 #ifdef __WXMSW__
 378   static const int sizeFont = 10;
 379 #else
 380 #endif
 381 */
 382 #if defined(__WXPM__)
 383   static const int sizeFont = 12;
 384   wxNORMAL_FONT = new wxFont (sizeFont, wxMODERN, wxNORMAL, wxNORMAL);
 385 #else
 386   wxNORMAL_FONT = new wxFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
 387   static const int sizeFont = wxNORMAL_FONT->GetPointSize();
 388 #endif
 389
 390   wxSMALL_FONT = new wxFont (sizeFont - 2, wxSWISS, wxNORMAL, wxNORMAL);
 391   wxITALIC_FONT = new wxFont (sizeFont, wxROMAN, wxITALIC, wxNORMAL);
 392   wxSWISS_FONT = new wxFont (sizeFont, wxSWISS, wxNORMAL, wxNORMAL);
 393
 394   wxRED_PEN = new wxPen ("RED", 1, wxSOLID);
 395   wxCYAN_PEN = new wxPen ("CYAN", 1, wxSOLID);
 396   wxGREEN_PEN = new wxPen ("GREEN", 1, wxSOLID);
 397   wxBLACK_PEN = new wxPen ("BLACK", 1, wxSOLID);
 398   wxWHITE_PEN = new wxPen ("WHITE", 1, wxSOLID);
 399   wxTRANSPARENT_PEN = new wxPen ("BLACK", 1, wxTRANSPARENT);
 400   wxBLACK_DASHED_PEN = new wxPen ("BLACK", 1, wxSHORT_DASH);
 401   wxGREY_PEN = new wxPen ("GREY", 1, wxSOLID);
 402   wxMEDIUM_GREY_PEN = new wxPen ("MEDIUM GREY", 1, wxSOLID);
 403   wxLIGHT_GREY_PEN = new wxPen ("LIGHT GREY", 1, wxSOLID);
 404
 405   wxBLUE_BRUSH = new wxBrush ("BLUE", wxSOLID);
 406   wxGREEN_BRUSH = new wxBrush ("GREEN", wxSOLID);
 407   wxWHITE_BRUSH = new wxBrush ("WHITE", wxSOLID);
 408   wxBLACK_BRUSH = new wxBrush ("BLACK", wxSOLID);
 409   wxTRANSPARENT_BRUSH = new wxBrush ("BLACK", wxTRANSPARENT);
 410   wxCYAN_BRUSH = new wxBrush ("CYAN", wxSOLID);
 411   wxRED_BRUSH = new wxBrush ("RED", wxSOLID);
 412   wxGREY_BRUSH = new wxBrush ("GREY", wxSOLID);
 413   wxMEDIUM_GREY_BRUSH = new wxBrush ("MEDIUM GREY", wxSOLID);
 414   wxLIGHT_GREY_BRUSH = new wxBrush ("LIGHT GREY", wxSOLID);
 415
 416   wxBLACK = new wxColour ("BLACK");
 417   wxWHITE = new wxColour ("WHITE");
 418   wxRED = new wxColour ("RED");
 419   wxBLUE = new wxColour ("BLUE");
 420   wxGREEN = new wxColour ("GREEN");
 421   wxCYAN = new wxColour ("CYAN");
 422   wxLIGHT_GREY = new wxColour ("LIGHT GREY");
 423
 424   wxSTANDARD_CURSOR = new wxCursor (wxCURSOR_ARROW);
 425   wxHOURGLASS_CURSOR = new wxCursor (wxCURSOR_WAIT);
 426   wxCROSS_CURSOR = new wxCursor (wxCURSOR_CROSS);
 427 }
 428
 429 void wxDeleteStockObjects ()
 430 {
 431   wxDELETE(wxNORMAL_FONT);
 432   wxDELETE(wxSMALL_FONT);
 433   wxDELETE(wxITALIC_FONT);
 434   wxDELETE(wxSWISS_FONT);
 435
 436   wxDELETE(wxRED_PEN);
 437   wxDELETE(wxCYAN_PEN);
 438   wxDELETE(wxGREEN_PEN);
 439   wxDELETE(wxBLACK_PEN);
 440   wxDELETE(wxWHITE_PEN);
 441   wxDELETE(wxTRANSPARENT_PEN);
 442   wxDELETE(wxBLACK_DASHED_PEN);
 443   wxDELETE(wxGREY_PEN);
 444   wxDELETE(wxMEDIUM_GREY_PEN);
 445   wxDELETE(wxLIGHT_GREY_PEN);
 446
 447   wxDELETE(wxBLUE_BRUSH);
 448   wxDELETE(wxGREEN_BRUSH);
 449   wxDELETE(wxWHITE_BRUSH);
 450   wxDELETE(wxBLACK_BRUSH);
 451   wxDELETE(wxTRANSPARENT_BRUSH);
 452   wxDELETE(wxCYAN_BRUSH);
 453   wxDELETE(wxRED_BRUSH);
 454   wxDELETE(wxGREY_BRUSH);
 455   wxDELETE(wxMEDIUM_GREY_BRUSH);
 456   wxDELETE(wxLIGHT_GREY_BRUSH);
 457
 458   wxDELETE(wxBLACK);
 459   wxDELETE(wxWHITE);
 460   wxDELETE(wxRED);
 461   wxDELETE(wxBLUE);
 462   wxDELETE(wxGREEN);
 463   wxDELETE(wxCYAN);
 464   wxDELETE(wxLIGHT_GREY);
 465
 466   wxDELETE(wxSTANDARD_CURSOR);
 467   wxDELETE(wxHOURGLASS_CURSOR);
 468   wxDELETE(wxCROSS_CURSOR);
 469 }
 470
 471 void wxDeleteStockLists() {
 472   wxDELETE(wxTheBrushList);
 473   wxDELETE(wxThePenList);
 474   wxDELETE(wxTheFontList);
 475   wxDELETE(wxTheBitmapList);
 476 }
 477
 478 wxBitmapList::wxBitmapList ()
 479 {
 480 }
 481
 482 wxBitmapList::~wxBitmapList ()
 483 {
 484   wxNode *node = First ();
 485   while (node)
 486     {
 487       wxBitmap *bitmap = (wxBitmap *) node->Data ();
 488       wxNode *next = node->Next ();
 489       if (bitmap->GetVisible())
 490         delete bitmap;
 491       node = next;
 492     }
 493 }
 494
 495 // Pen and Brush lists
 496 wxPenList::~wxPenList ()
 497 {
 498   wxNode *node = First ();
 499   while (node)
 500     {
 501       wxPen *pen = (wxPen *) node->Data ();
 502       wxNode *next = node->Next ();
 503       if (pen->GetVisible())
 504         delete pen;
 505       node = next;
 506     }
 507 }
 508
 509 void wxPenList::AddPen (wxPen * pen)
 510 {
 511   Append (pen);
 512 }
 513
 514 void wxPenList::RemovePen (wxPen * pen)
 515 {
 516   DeleteObject (pen);
 517 }
 518
 519 wxPen *wxPenList::FindOrCreatePen (const wxColour& colour, int width, int style)
 520 {
 521   for (wxNode * node = First (); node; node = node->Next ())
 522     {
 523       wxPen *each_pen = (wxPen *) node->Data ();
 524       if (each_pen &&
 525           each_pen->GetVisible() &&
 526           each_pen->GetWidth () == width &&
 527           each_pen->GetStyle () == style &&
 528           each_pen->GetColour ().Red () == colour.Red () &&
 529           each_pen->GetColour ().Green () == colour.Green () &&
 530           each_pen->GetColour ().Blue () == colour.Blue ())
 531         return each_pen;
 532     }
 533   wxPen *pen = new wxPen (colour, width, style);
 534
 535   // Yes, we can return a pointer to this in a later FindOrCreatePen call,
 536   // because we created it within FindOrCreatePen. Safeguards against
 537   // returning a pointer to an automatic variable and hanging on to it
 538   // (dangling pointer).
 539   pen->SetVisible(TRUE);
 540
 541   return pen;
 542 }
 543
 544 wxBrushList::~wxBrushList ()
 545 {
 546   wxNode *node = First ();
 547   while (node)
 548     {
 549       wxBrush *brush = (wxBrush *) node->Data ();
 550       wxNode *next = node->Next ();
 551       if (brush->GetVisible())
 552         delete brush;
 553       node = next;
 554     }
 555 }
 556
 557 void wxBrushList::AddBrush (wxBrush * brush)
 558 {
 559   Append (brush);
 560 }
 561
 562 wxBrush *wxBrushList::FindOrCreateBrush (const wxColour& colour, int style)
 563 {
 564   for (wxNode * node = First (); node; node = node->Next ())
 565     {
 566       wxBrush *each_brush = (wxBrush *) node->Data ();
 567       if (each_brush &&
 568           each_brush->GetVisible() &&
 569           each_brush->GetStyle () == style &&
 570           each_brush->GetColour ().Red () == colour.Red () &&
 571           each_brush->GetColour ().Green () == colour.Green () &&
 572           each_brush->GetColour ().Blue () == colour.Blue ())
 573         return each_brush;
 574     }
 575
 576   // Yes, we can return a pointer to this in a later FindOrCreateBrush call,
 577   // because we created it within FindOrCreateBrush. Safeguards against
 578   // returning a pointer to an automatic variable and hanging on to it
 579   // (dangling pointer).
 580   wxBrush *brush = new wxBrush (colour, style);
 581
 582   brush->SetVisible(TRUE);
 583
 584   return brush;
 585 }
 586
 587 void wxBrushList::RemoveBrush (wxBrush * brush)
 588 {
 589   DeleteObject (brush);
 590 }
 591
 592 wxFontList::~wxFontList ()
 593 {
 594     wxNode *node = First ();
 595     while (node)
 596     {
 597         // Only delete objects that are 'visible', i.e.
 598         // that have been created using FindOrCreate...,
 599         // where the pointers are expected to be shared
 600         // (and therefore not deleted by any one part of an app).
 601         wxFont *font = (wxFont *) node->Data ();
 602         wxNode *next = node->Next ();
 603         if (font->GetVisible())
 604             delete font;
 605         node = next;
 606     }
 607 }
 608
 609 void wxFontList::AddFont (wxFont * font)
 610 {
 611   Append (font);
 612 }
 613
 614 void wxFontList::RemoveFont (wxFont * font)
 615 {
 616   DeleteObject (font);
 617 }
 618
 619 wxFont *wxFontList::FindOrCreateFont(int pointSize,
 620                                      int family,
 621                                      int style,
 622                                      int weight,
 623                                      bool underline,
 624                                      const wxString& facename,
 625                                      wxFontEncoding encoding)
 626 {
 627     wxFont *font = (wxFont *)NULL;
 628     wxNode *node;
 629     for ( node = First(); node; node = node->Next() )
 630     {
 631         font = (wxFont *)node->Data();
 632         if ( font->GetVisible() &&
 633              font->Ok() &&
 634              font->GetPointSize () == pointSize &&
 635              font->GetStyle () == style &&
 636              font->GetWeight () == weight &&
 637              font->GetUnderlined () == underline )
 638         {
 639             int fontFamily = font->GetFamily();
 640
 641 #if defined(__WXGTK__)
 642             // under GTK the default family is wxSWISS, so looking for a font
 643             // with wxDEFAULT family should return a wxSWISS one instead of
 644             // creating a new one
 645             bool same = (fontFamily == family) ||
 646                         (fontFamily == wxSWISS && family == wxDEFAULT);
 647 #else // !GTK
 648             // VZ: but why elsewhere do we require an exact match? mystery...
 649             bool same = fontFamily == family;
 650 #endif // GTK/!GTK
 651
 652             // empty facename matches anything at all: this is bad because
 653             // depending on which fonts are already created, we might get back
 654             // a different font if we create it with empty facename, but it is
 655             // still better than never matching anything in the cache at all
 656             // in this case
 657             if ( same && !!facename )
 658             {
 659                 const wxString& fontFace = font->GetFaceName();
 660
 661                 // empty facename matches everything
 662                 same = !fontFace || fontFace == facename;
 663             }
 664
 665             if ( same && (encoding != wxFONTENCODING_DEFAULT) )
 666             {
 667                 // have to match the encoding too
 668                 same = font->GetEncoding() == encoding;
 669             }
 670
 671             if ( same )
 672             {
 673                 return font;
 674             }
 675         }
 676     }
 677
 678     if ( !node )
 679     {
 680         // font not found, create the new one
 681         font = new wxFont(pointSize, family, style, weight,
 682                           underline, facename, encoding);
 683
 684         // and mark it as being cacheable
 685         font->SetVisible(TRUE);
 686     }
 687
 688     return font;
 689 }
 690
 691 void wxBitmapList::AddBitmap(wxBitmap *bitmap)
 692 {
 693     Append(bitmap);
 694 }
 695
 696 void wxBitmapList::RemoveBitmap(wxBitmap *bitmap)
 697 {
 698     DeleteObject(bitmap);
 699 }
 700
 701 wxSize wxGetDisplaySize()
 702 {
 703     int x, y;
 704     wxDisplaySize(& x, & y);
 705     return wxSize(x, y);
 706 }
 707
 708 wxSize wxGetDisplaySizeMM()
 709 {
 710     int x, y;
 711     wxDisplaySizeMM(& x, & y);
 712     return wxSize(x, y);
 713 }
 714
 715 wxResourceCache::~wxResourceCache ()
 716 {
 717     wxNode *node = First ();
 718     while (node) {
 719         wxObject *item = (wxObject *)node->Data();
 720         delete item;
 721
 722         node = node->Next ();
 723     }
 724 }
 725