src/common/gdicmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/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
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #include "wx/gdicmn.h"
  20 #include "wx/gdiobj.h"
  21
  22 #ifndef WX_PRECOMP
  23     #include "wx/log.h"
  24     #include "wx/pen.h"
  25     #include "wx/brush.h"
  26     #include "wx/palette.h"
  27     #include "wx/icon.h"
  28     #include "wx/iconbndl.h"
  29     #include "wx/cursor.h"
  30     #include "wx/settings.h"
  31     #include "wx/bitmap.h"
  32     #include "wx/colour.h"
  33     #include "wx/font.h"
  34     #include "wx/math.h"
  35 #endif
  36
  37
  38 IMPLEMENT_ABSTRACT_CLASS(wxGDIObject, wxObject)
  39
  40
  41 WXDLLIMPEXP_DATA_CORE(wxBrushList*) wxTheBrushList;
  42 WXDLLIMPEXP_DATA_CORE(wxFontList*)  wxTheFontList;
  43 WXDLLIMPEXP_DATA_CORE(wxPenList*)   wxThePenList;
  44
  45 WXDLLIMPEXP_DATA_CORE(wxColourDatabase*) wxTheColourDatabase;
  46
  47 WXDLLIMPEXP_DATA_CORE(wxBitmap)  wxNullBitmap;
  48 WXDLLIMPEXP_DATA_CORE(wxBrush)   wxNullBrush;
  49 WXDLLIMPEXP_DATA_CORE(wxColour)  wxNullColour;
  50 WXDLLIMPEXP_DATA_CORE(wxCursor)  wxNullCursor;
  51 WXDLLIMPEXP_DATA_CORE(wxFont)    wxNullFont;
  52 WXDLLIMPEXP_DATA_CORE(wxIcon)    wxNullIcon;
  53 WXDLLIMPEXP_DATA_CORE(wxPen)     wxNullPen;
  54 #if wxUSE_PALETTE
  55 WXDLLIMPEXP_DATA_CORE(wxPalette) wxNullPalette;
  56 #endif
  57 WXDLLIMPEXP_DATA_CORE(wxIconBundle) wxNullIconBundle;
  58
  59 const wxSize wxDefaultSize(wxDefaultCoord, wxDefaultCoord);
  60 const wxPoint wxDefaultPosition(wxDefaultCoord, wxDefaultCoord);
  61
  62 #include "wx/listimpl.cpp"
  63 WX_DEFINE_LIST(wxPointList)
  64
  65
  66 #if wxUSE_EXTENDED_RTTI
  67
  68 // wxPoint
  69
  70 template<> void wxStringReadValue(const wxString &s , wxPoint &data )
  71 {
  72     wxSscanf(s, wxT("%d,%d"), &data.x , &data.y ) ;
  73 }
  74
  75 template<> void wxStringWriteValue(wxString &s , const wxPoint &data )
  76 {
  77     s = wxString::Format(wxT("%d,%d"), data.x , data.y ) ;
  78 }
  79
  80 wxCUSTOM_TYPE_INFO(wxPoint, wxToStringConverter<wxPoint> , wxFromStringConverter<wxPoint>)
  81
  82 template<> void wxStringReadValue(const wxString &s , wxSize &data )
  83 {
  84     wxSscanf(s, wxT("%d,%d"), &data.x , &data.y ) ;
  85 }
  86
  87 template<> void wxStringWriteValue(wxString &s , const wxSize &data )
  88 {
  89     s = wxString::Format(wxT("%d,%d"), data.x , data.y ) ;
  90 }
  91
  92 wxCUSTOM_TYPE_INFO(wxSize, wxToStringConverter<wxSize> , wxFromStringConverter<wxSize>)
  93
  94 #endif
  95
  96 wxRect::wxRect(const wxPoint& point1, const wxPoint& point2)
  97 {
  98     x = point1.x;
  99     y = point1.y;
 100     width = point2.x - point1.x;
 101     height = point2.y - point1.y;
 102
 103     if (width < 0)
 104     {
 105         width = -width;
 106         x = point2.x;
 107     }
 108     width++;
 109
 110     if (height < 0)
 111     {
 112         height = -height;
 113         y = point2.y;
 114     }
 115     height++;
 116 }
 117
 118 wxRect& wxRect::Union(const wxRect& rect)
 119 {
 120     // ignore empty rectangles: union with an empty rectangle shouldn't extend
 121     // this one to (0, 0)
 122     if ( !width || !height )
 123     {
 124         *this = rect;
 125     }
 126     else if ( rect.width && rect.height )
 127     {
 128         int x1 = wxMin(x, rect.x);
 129         int y1 = wxMin(y, rect.y);
 130         int y2 = wxMax(y + height, rect.height + rect.y);
 131         int x2 = wxMax(x + width, rect.width + rect.x);
 132
 133         x = x1;
 134         y = y1;
 135         width = x2 - x1;
 136         height = y2 - y1;
 137     }
 138     //else: we're not empty and rect is empty
 139
 140     return *this;
 141 }
 142
 143 wxRect& wxRect::Inflate(wxCoord dx, wxCoord dy)
 144 {
 145      if (-2*dx>width)
 146      {
 147          // Don't allow deflate to eat more width than we have,
 148          // a well-defined rectangle cannot have negative width.
 149          x+=width/2;
 150          width=0;
 151      }
 152      else
 153      {
 154          // The inflate is valid.
 155          x-=dx;
 156          width+=2*dx;
 157      }
 158
 159      if (-2*dy>height)
 160      {
 161          // Don't allow deflate to eat more height than we have,
 162          // a well-defined rectangle cannot have negative height.
 163          y+=height/2;
 164          height=0;
 165      }
 166      else
 167      {
 168          // The inflate is valid.
 169          y-=dy;
 170          height+=2*dy;
 171      }
 172
 173     return *this;
 174 }
 175
 176 bool wxRect::Contains(int cx, int cy) const
 177 {
 178     return ( (cx >= x) && (cy >= y)
 179           && ((cy - y) < height)
 180           && ((cx - x) < width)
 181           );
 182 }
 183
 184 bool wxRect::Contains(const wxRect& rect) const
 185 {
 186     return Contains(rect.GetTopLeft()) && Contains(rect.GetBottomRight());
 187 }
 188
 189 wxRect& wxRect::Intersect(const wxRect& rect)
 190 {
 191     int x2 = GetRight(),
 192         y2 = GetBottom();
 193
 194     if ( x < rect.x )
 195         x = rect.x;
 196     if ( y < rect.y )
 197         y = rect.y;
 198     if ( x2 > rect.GetRight() )
 199         x2 = rect.GetRight();
 200     if ( y2 > rect.GetBottom() )
 201         y2 = rect.GetBottom();
 202
 203     width = x2 - x + 1;
 204     height = y2 - y + 1;
 205
 206     if ( width <= 0 || height <= 0 )
 207     {
 208         width =
 209         height = 0;
 210     }
 211
 212     return *this;
 213 }
 214
 215 bool wxRect::Intersects(const wxRect& rect) const
 216 {
 217     wxRect r = Intersect(rect);
 218
 219     // if there is no intersection, both width and height are 0
 220     return r.width != 0;
 221 }
 222
 223 wxRect& wxRect::operator+=(const wxRect& rect)
 224 {
 225     *this = *this + rect;
 226     return *this;
 227 }
 228
 229
 230 wxRect& wxRect::operator*=(const wxRect& rect)
 231 {
 232     *this = *this * rect;
 233     return *this;
 234 }
 235
 236
 237 wxRect operator+(const wxRect& r1, const wxRect& r2)
 238 {
 239     int x1 = wxMin(r1.x, r2.x);
 240     int y1 = wxMin(r1.y, r2.y);
 241     int y2 = wxMax(r1.y+r1.height, r2.height+r2.y);
 242     int x2 = wxMax(r1.x+r1.width, r2.width+r2.x);
 243     return wxRect(x1, y1, x2-x1, y2-y1);
 244 }
 245
 246 wxRect operator*(const wxRect& r1, const wxRect& r2)
 247 {
 248     int x1 = wxMax(r1.x, r2.x);
 249     int y1 = wxMax(r1.y, r2.y);
 250     int y2 = wxMin(r1.y+r1.height, r2.height+r2.y);
 251     int x2 = wxMin(r1.x+r1.width, r2.width+r2.x);
 252     return wxRect(x1, y1, x2-x1, y2-y1);
 253 }
 254
 255 // ============================================================================
 256 // wxColourDatabase
 257 // ============================================================================
 258
 259 // ----------------------------------------------------------------------------
 260 // wxColourDatabase ctor/dtor
 261 // ----------------------------------------------------------------------------
 262
 263 wxColourDatabase::wxColourDatabase ()
 264 {
 265     // will be created on demand in Initialize()
 266     m_map = NULL;
 267 }
 268
 269 wxColourDatabase::~wxColourDatabase ()
 270 {
 271     if ( m_map )
 272     {
 273         WX_CLEAR_HASH_MAP(wxStringToColourHashMap, *m_map);
 274
 275         delete m_map;
 276     }
 277
 278 #ifdef __WXPM__
 279     delete [] m_palTable;
 280 #endif
 281 }
 282
 283 // Colour database stuff
 284 void wxColourDatabase::Initialize()
 285 {
 286     if ( m_map )
 287     {
 288         // already initialized
 289         return;
 290     }
 291
 292     m_map = new wxStringToColourHashMap;
 293
 294     static const struct wxColourDesc
 295     {
 296         const wxChar *name;
 297         unsigned char r,g,b;
 298     }
 299     wxColourTable[] =
 300     {
 301         {wxT("AQUAMARINE"),112, 219, 147},
 302         {wxT("BLACK"),0, 0, 0},
 303         {wxT("BLUE"), 0, 0, 255},
 304         {wxT("BLUE VIOLET"), 159, 95, 159},
 305         {wxT("BROWN"), 165, 42, 42},
 306         {wxT("CADET BLUE"), 95, 159, 159},
 307         {wxT("CORAL"), 255, 127, 0},
 308         {wxT("CORNFLOWER BLUE"), 66, 66, 111},
 309         {wxT("CYAN"), 0, 255, 255},
 310         {wxT("DARK GREY"), 47, 47, 47},   // ?
 311
 312         {wxT("DARK GREEN"), 47, 79, 47},
 313         {wxT("DARK OLIVE GREEN"), 79, 79, 47},
 314         {wxT("DARK ORCHID"), 153, 50, 204},
 315         {wxT("DARK SLATE BLUE"), 107, 35, 142},
 316         {wxT("DARK SLATE GREY"), 47, 79, 79},
 317         {wxT("DARK TURQUOISE"), 112, 147, 219},
 318         {wxT("DIM GREY"), 84, 84, 84},
 319         {wxT("FIREBRICK"), 142, 35, 35},
 320         {wxT("FOREST GREEN"), 35, 142, 35},
 321         {wxT("GOLD"), 204, 127, 50},
 322         {wxT("GOLDENROD"), 219, 219, 112},
 323         {wxT("GREY"), 128, 128, 128},
 324         {wxT("GREEN"), 0, 255, 0},
 325         {wxT("GREEN YELLOW"), 147, 219, 112},
 326         {wxT("INDIAN RED"), 79, 47, 47},
 327         {wxT("KHAKI"), 159, 159, 95},
 328         {wxT("LIGHT BLUE"), 191, 216, 216},
 329         {wxT("LIGHT GREY"), 192, 192, 192},
 330         {wxT("LIGHT STEEL BLUE"), 143, 143, 188},
 331         {wxT("LIME GREEN"), 50, 204, 50},
 332         {wxT("LIGHT MAGENTA"), 255, 0, 255},
 333         {wxT("MAGENTA"), 255, 0, 255},
 334         {wxT("MAROON"), 142, 35, 107},
 335         {wxT("MEDIUM AQUAMARINE"), 50, 204, 153},
 336         {wxT("MEDIUM GREY"), 100, 100, 100},
 337         {wxT("MEDIUM BLUE"), 50, 50, 204},
 338         {wxT("MEDIUM FOREST GREEN"), 107, 142, 35},
 339         {wxT("MEDIUM GOLDENROD"), 234, 234, 173},
 340         {wxT("MEDIUM ORCHID"), 147, 112, 219},
 341         {wxT("MEDIUM SEA GREEN"), 66, 111, 66},
 342         {wxT("MEDIUM SLATE BLUE"), 127, 0, 255},
 343         {wxT("MEDIUM SPRING GREEN"), 127, 255, 0},
 344         {wxT("MEDIUM TURQUOISE"), 112, 219, 219},
 345         {wxT("MEDIUM VIOLET RED"), 219, 112, 147},
 346         {wxT("MIDNIGHT BLUE"), 47, 47, 79},
 347         {wxT("NAVY"), 35, 35, 142},
 348         {wxT("ORANGE"), 204, 50, 50},
 349         {wxT("ORANGE RED"), 255, 0, 127},
 350         {wxT("ORCHID"), 219, 112, 219},
 351         {wxT("PALE GREEN"), 143, 188, 143},
 352         {wxT("PINK"), 255, 192, 203},
 353         {wxT("PLUM"), 234, 173, 234},
 354         {wxT("PURPLE"), 176, 0, 255},
 355         {wxT("RED"), 255, 0, 0},
 356         {wxT("SALMON"), 111, 66, 66},
 357         {wxT("SEA GREEN"), 35, 142, 107},
 358         {wxT("SIENNA"), 142, 107, 35},
 359         {wxT("SKY BLUE"), 50, 153, 204},
 360         {wxT("SLATE BLUE"), 0, 127, 255},
 361         {wxT("SPRING GREEN"), 0, 255, 127},
 362         {wxT("STEEL BLUE"), 35, 107, 142},
 363         {wxT("TAN"), 219, 147, 112},
 364         {wxT("THISTLE"), 216, 191, 216},
 365         {wxT("TURQUOISE"), 173, 234, 234},
 366         {wxT("VIOLET"), 79, 47, 79},
 367         {wxT("VIOLET RED"), 204, 50, 153},
 368         {wxT("WHEAT"), 216, 216, 191},
 369         {wxT("WHITE"), 255, 255, 255},
 370         {wxT("YELLOW"), 255, 255, 0},
 371         {wxT("YELLOW GREEN"), 153, 204, 50}
 372     };
 373
 374     size_t n;
 375
 376     for ( n = 0; n < WXSIZEOF(wxColourTable); n++ )
 377     {
 378         const wxColourDesc& cc = wxColourTable[n];
 379         (*m_map)[cc.name] = new wxColour(cc.r, cc.g, cc.b);
 380     }
 381
 382 #ifdef __WXPM__
 383     m_palTable = new long[n];
 384     for ( n = 0; n < WXSIZEOF(wxColourTable); n++ )
 385     {
 386         const wxColourDesc& cc = wxColourTable[n];
 387         m_palTable[n] = OS2RGB(cc.r,cc.g,cc.b);
 388     }
 389     m_nSize = n;
 390 #endif
 391 }
 392
 393 // ----------------------------------------------------------------------------
 394 // wxColourDatabase operations
 395 // ----------------------------------------------------------------------------
 396
 397 void wxColourDatabase::AddColour(const wxString& name, const wxColour& colour)
 398 {
 399     Initialize();
 400
 401     // canonicalize the colour names before using them as keys: they should be
 402     // in upper case
 403     wxString colName = name;
 404     colName.MakeUpper();
 405
 406     // ... and we also allow both grey/gray
 407     wxString colNameAlt = colName;
 408     if ( !colNameAlt.Replace(wxT("GRAY"), wxT("GREY")) )
 409     {
 410         // but in this case it is not necessary so avoid extra search below
 411         colNameAlt.clear();
 412     }
 413
 414     wxStringToColourHashMap::iterator it = m_map->find(colName);
 415     if ( it == m_map->end() && !colNameAlt.empty() )
 416         it = m_map->find(colNameAlt);
 417     if ( it != m_map->end() )
 418     {
 419         *(it->second) = colour;
 420     }
 421     else // new colour
 422     {
 423         (*m_map)[colName] = new wxColour(colour);
 424     }
 425 }
 426
 427 wxColour wxColourDatabase::Find(const wxString& colour) const
 428 {
 429     wxColourDatabase * const self = wxConstCast(this, wxColourDatabase);
 430     self->Initialize();
 431
 432     // make the comparaison case insensitive and also match both grey and gray
 433     wxString colName = colour;
 434     colName.MakeUpper();
 435     wxString colNameAlt = colName;
 436     if ( !colNameAlt.Replace(wxT("GRAY"), wxT("GREY")) )
 437         colNameAlt.clear();
 438
 439     wxStringToColourHashMap::iterator it = m_map->find(colName);
 440     if ( it == m_map->end() && !colNameAlt.empty() )
 441         it = m_map->find(colNameAlt);
 442     if ( it != m_map->end() )
 443         return *(it->second);
 444
 445     // we did not find any result in existing colours:
 446     // we won't use wxString -> wxColour conversion because the
 447     // wxColour::Set(const wxString &) function which does that conversion
 448     // internally uses this function (wxColourDatabase::Find) and we want
 449     // to avoid infinite recursion !
 450     return wxNullColour;
 451 }
 452
 453 wxString wxColourDatabase::FindName(const wxColour& colour) const
 454 {
 455     wxColourDatabase * const self = wxConstCast(this, wxColourDatabase);
 456     self->Initialize();
 457
 458     typedef wxStringToColourHashMap::iterator iterator;
 459
 460     for ( iterator it = m_map->begin(), en = m_map->end(); it != en; ++it )
 461     {
 462         if ( *(it->second) == colour )
 463             return it->first;
 464     }
 465
 466     return wxEmptyString;
 467 }
 468
 469 // ----------------------------------------------------------------------------
 470 // deprecated wxColourDatabase methods
 471 // ----------------------------------------------------------------------------
 472
 473 #if WXWIN_COMPATIBILITY_2_6
 474 wxColour *wxColourDatabase::FindColour(const wxString& name)
 475 {
 476     // This function is deprecated, use Find() instead.
 477     // Formerly this function sometimes would return a deletable pointer and
 478     // sometimes a non-deletable one (when returning a colour from the database).
 479     // Trying to delete the latter anyway results in problems, so probably
 480     // nobody ever freed the pointers. Currently it always returns a new
 481     // instance, which means there will be memory leaks.
 482     wxLogDebug(wxT("wxColourDataBase::FindColour():")
 483         wxT(" Please use wxColourDataBase::Find() instead"));
 484
 485     // using a static variable here is not the most elegant solution but unless
 486     // we want to make wxStringToColourHashMap public (i.e. move it to the
 487     // header) so that we could have a member function returning
 488     // wxStringToColourHashMap::iterator, there is really no good way to do it
 489     // otherwise
 490     //
 491     // and knowing that this function is going to disappear in the next release
 492     // anyhow I don't want to waste time on this
 493
 494     static wxColour s_col;
 495
 496     s_col = Find(name);
 497     if ( !s_col.Ok() )
 498         return NULL;
 499
 500     return new wxColour(s_col);
 501 }
 502 #endif // WXWIN_COMPATIBILITY_2_6
 503
 504 // ============================================================================
 505 // stock objects
 506 // ============================================================================
 507
 508 static wxStockGDI gs_wxStockGDI_instance;
 509 wxStockGDI* wxStockGDI::ms_instance = &gs_wxStockGDI_instance;
 510 wxObject* wxStockGDI::ms_stockObject[ITEMCOUNT];
 511
 512 wxStockGDI::wxStockGDI()
 513 {
 514 }
 515
 516 wxStockGDI::~wxStockGDI()
 517 {
 518 }
 519
 520 void wxStockGDI::DeleteAll()
 521 {
 522     for (unsigned i = 0; i < ITEMCOUNT; i++)
 523     {
 524         delete ms_stockObject[i];
 525         ms_stockObject[i] = NULL;
 526     }
 527 }
 528
 529 const wxBrush* wxStockGDI::GetBrush(Item item)
 530 {
 531     wxBrush* brush = static_cast<wxBrush*>(ms_stockObject[item]);
 532     if (brush == NULL)
 533     {
 534         switch (item)
 535         {
 536         case BRUSH_BLACK:
 537             brush = new wxBrush(*GetColour(COLOUR_BLACK), wxBRUSHSTYLE_SOLID);
 538             break;
 539         case BRUSH_BLUE:
 540             brush = new wxBrush(*GetColour(COLOUR_BLUE), wxBRUSHSTYLE_SOLID);
 541             break;
 542         case BRUSH_CYAN:
 543             brush = new wxBrush(*GetColour(COLOUR_CYAN), wxBRUSHSTYLE_SOLID);
 544             break;
 545         case BRUSH_GREEN:
 546             brush = new wxBrush(*GetColour(COLOUR_GREEN), wxBRUSHSTYLE_SOLID);
 547             break;
 548         case BRUSH_YELLOW:
 549             brush = new wxBrush(*GetColour(COLOUR_YELLOW), wxBRUSHSTYLE_SOLID);
 550             break;
 551         case BRUSH_GREY:
 552             brush = new wxBrush(wxColour(wxT("GREY")), wxBRUSHSTYLE_SOLID);
 553             break;
 554         case BRUSH_LIGHTGREY:
 555             brush = new wxBrush(*GetColour(COLOUR_LIGHTGREY), wxBRUSHSTYLE_SOLID);
 556             break;
 557         case BRUSH_MEDIUMGREY:
 558             brush = new wxBrush(wxColour(wxT("MEDIUM GREY")), wxBRUSHSTYLE_SOLID);
 559             break;
 560         case BRUSH_RED:
 561             brush = new wxBrush(*GetColour(COLOUR_RED), wxBRUSHSTYLE_SOLID);
 562             break;
 563         case BRUSH_TRANSPARENT:
 564             brush = new wxBrush(*GetColour(COLOUR_BLACK), wxBRUSHSTYLE_TRANSPARENT);
 565             break;
 566         case BRUSH_WHITE:
 567             brush = new wxBrush(*GetColour(COLOUR_WHITE), wxBRUSHSTYLE_SOLID);
 568             break;
 569         default:
 570             wxFAIL;
 571         }
 572         ms_stockObject[item] = brush;
 573     }
 574     return brush;
 575 }
 576
 577 const wxColour* wxStockGDI::GetColour(Item item)
 578 {
 579     wxColour* colour = static_cast<wxColour*>(ms_stockObject[item]);
 580     if (colour == NULL)
 581     {
 582         switch (item)
 583         {
 584         case COLOUR_BLACK:
 585             colour = new wxColour(0, 0, 0);
 586             break;
 587         case COLOUR_BLUE:
 588             colour = new wxColour(0, 0, 255);
 589             break;
 590         case COLOUR_CYAN:
 591             colour = new wxColour(wxT("CYAN"));
 592             break;
 593         case COLOUR_GREEN:
 594             colour = new wxColour(0, 255, 0);
 595             break;
 596         case COLOUR_YELLOW:
 597             colour = new wxColour(255, 255, 0);
 598             break;
 599         case COLOUR_LIGHTGREY:
 600             colour = new wxColour(wxT("LIGHT GREY"));
 601             break;
 602         case COLOUR_RED:
 603             colour = new wxColour(255, 0, 0);
 604             break;
 605         case COLOUR_WHITE:
 606             colour = new wxColour(255, 255, 255);
 607             break;
 608         default:
 609             wxFAIL;
 610         }
 611         ms_stockObject[item] = colour;
 612     }
 613     return colour;
 614 }
 615
 616 const wxCursor* wxStockGDI::GetCursor(Item item)
 617 {
 618     wxCursor* cursor = static_cast<wxCursor*>(ms_stockObject[item]);
 619     if (cursor == NULL)
 620     {
 621         switch (item)
 622         {
 623         case CURSOR_CROSS:
 624             cursor = new wxCursor(wxCURSOR_CROSS);
 625             break;
 626         case CURSOR_HOURGLASS:
 627             cursor = new wxCursor(wxCURSOR_WAIT);
 628             break;
 629         case CURSOR_STANDARD:
 630             cursor = new wxCursor(wxCURSOR_ARROW);
 631             break;
 632         default:
 633             wxFAIL;
 634         }
 635         ms_stockObject[item] = cursor;
 636     }
 637     return cursor;
 638 }
 639
 640 const wxFont* wxStockGDI::GetFont(Item item)
 641 {
 642     wxFont* font = static_cast<wxFont*>(ms_stockObject[item]);
 643     if (font == NULL)
 644     {
 645         switch (item)
 646         {
 647         case FONT_ITALIC:
 648             font = new wxFont(GetFont(FONT_NORMAL)->GetPointSize(), wxROMAN, wxITALIC, wxNORMAL);
 649             break;
 650         case FONT_NORMAL:
 651             font = new wxFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 652             break;
 653         case FONT_SMALL:
 654             font = new wxFont(GetFont(FONT_NORMAL)->GetPointSize() - 2, wxSWISS, wxNORMAL, wxNORMAL);
 655             break;
 656         case FONT_SWISS:
 657             font = new wxFont(GetFont(FONT_NORMAL)->GetPointSize(), wxSWISS, wxNORMAL, wxNORMAL);
 658             break;
 659         default:
 660             wxFAIL;
 661         }
 662         ms_stockObject[item] = font;
 663     }
 664     return font;
 665 }
 666
 667 const wxPen* wxStockGDI::GetPen(Item item)
 668 {
 669     wxPen* pen = static_cast<wxPen*>(ms_stockObject[item]);
 670     if (pen == NULL)
 671     {
 672         switch (item)
 673         {
 674         case PEN_BLACK:
 675             pen = new wxPen(*GetColour(COLOUR_BLACK), 1, wxPENSTYLE_SOLID);
 676             break;
 677         case PEN_BLACKDASHED:
 678             pen = new wxPen(*GetColour(COLOUR_BLACK), 1, wxPENSTYLE_SHORT_DASH);
 679             break;
 680         case PEN_BLUE:
 681             pen = new wxPen(*GetColour(COLOUR_BLUE), 1, wxPENSTYLE_SOLID);
 682             break;
 683         case PEN_CYAN:
 684             pen = new wxPen(*GetColour(COLOUR_CYAN), 1, wxPENSTYLE_SOLID);
 685             break;
 686         case PEN_GREEN:
 687             pen = new wxPen(*GetColour(COLOUR_GREEN), 1, wxPENSTYLE_SOLID);
 688             break;
 689         case PEN_YELLOW:
 690             pen = new wxPen(*GetColour(COLOUR_YELLOW), 1, wxPENSTYLE_SOLID);
 691             break;
 692         case PEN_GREY:
 693             pen = new wxPen(wxColour(wxT("GREY")), 1, wxPENSTYLE_SOLID);
 694             break;
 695         case PEN_LIGHTGREY:
 696             pen = new wxPen(*GetColour(COLOUR_LIGHTGREY), 1, wxPENSTYLE_SOLID);
 697             break;
 698         case PEN_MEDIUMGREY:
 699             pen = new wxPen(wxColour(wxT("MEDIUM GREY")), 1, wxPENSTYLE_SOLID);
 700             break;
 701         case PEN_RED:
 702             pen = new wxPen(*GetColour(COLOUR_RED), 1, wxPENSTYLE_SOLID);
 703             break;
 704         case PEN_TRANSPARENT:
 705             pen = new wxPen(*GetColour(COLOUR_BLACK), 1, wxPENSTYLE_TRANSPARENT);
 706             break;
 707         case PEN_WHITE:
 708             pen = new wxPen(*GetColour(COLOUR_WHITE), 1, wxPENSTYLE_SOLID);
 709             break;
 710         default:
 711             wxFAIL;
 712         }
 713         ms_stockObject[item] = pen;
 714     }
 715     return pen;
 716 }
 717
 718 void wxInitializeStockLists()
 719 {
 720     wxTheColourDatabase = new wxColourDatabase;
 721
 722     wxTheBrushList = new wxBrushList;
 723     wxThePenList = new wxPenList;
 724     wxTheFontList = new wxFontList;
 725 }
 726
 727 void wxDeleteStockLists()
 728 {
 729     wxDELETE(wxTheBrushList);
 730     wxDELETE(wxThePenList);
 731     wxDELETE(wxTheFontList);
 732
 733     // wxTheColourDatabase is cleaned up by wxAppBase::CleanUp()
 734 }
 735
 736 // ============================================================================
 737 // wxTheXXXList stuff (semi-obsolete)
 738 // ============================================================================
 739
 740 wxGDIObjListBase::wxGDIObjListBase()
 741 {
 742 }
 743
 744 wxGDIObjListBase::~wxGDIObjListBase()
 745 {
 746     for (wxList::compatibility_iterator node = list.GetFirst(); node; node = node->GetNext())
 747     {
 748         delete static_cast<wxObject*>(node->GetData());
 749     }
 750 }
 751
 752 wxPen *wxPenList::FindOrCreatePen (const wxColour& colour, int width, wxPenStyle style)
 753 {
 754     for ( wxList::compatibility_iterator node = list.GetFirst();
 755           node;
 756           node = node->GetNext() )
 757     {
 758         wxPen * const pen = (wxPen *) node->GetData();
 759         if ( pen->GetWidth () == width &&
 760                 pen->GetStyle () == style &&
 761                     pen->GetColour() == colour )
 762             return pen;
 763     }
 764
 765     wxPen* pen = NULL;
 766     wxPen penTmp(colour, width, style);
 767     if (penTmp.Ok())
 768     {
 769         pen = new wxPen(penTmp);
 770         list.Append(pen);
 771     }
 772
 773     return pen;
 774 }
 775
 776 wxBrush *wxBrushList::FindOrCreateBrush (const wxColour& colour, wxBrushStyle style)
 777 {
 778     for ( wxList::compatibility_iterator node = list.GetFirst();
 779           node;
 780           node = node->GetNext() )
 781     {
 782         wxBrush * const brush = (wxBrush *) node->GetData ();
 783         if ( brush->GetStyle() == style && brush->GetColour() == colour )
 784             return brush;
 785     }
 786
 787     wxBrush* brush = NULL;
 788     wxBrush brushTmp(colour, style);
 789     if (brushTmp.Ok())
 790     {
 791         brush = new wxBrush(brushTmp);
 792         list.Append(brush);
 793     }
 794
 795     return brush;
 796 }
 797
 798 wxFont *wxFontList::FindOrCreateFont(int pointSize,
 799                                      wxFontFamily family,
 800                                      wxFontStyle style,
 801                                      wxFontWeight weight,
 802                                      bool underline,
 803                                      const wxString& facename,
 804                                      wxFontEncoding encoding)
 805 {
 806     wxFont *font;
 807     wxList::compatibility_iterator node;
 808     for (node = list.GetFirst(); node; node = node->GetNext())
 809     {
 810         font = (wxFont *)node->GetData();
 811         if (
 812              font->GetPointSize () == pointSize &&
 813              font->GetStyle () == style &&
 814              font->GetWeight () == weight &&
 815              font->GetUnderlined () == underline )
 816         {
 817             wxFontFamily fontFamily = (wxFontFamily)font->GetFamily();
 818
 819 #if defined(__WXGTK__)
 820             // under GTK the default family is wxSWISS, so looking for a font
 821             // with wxDEFAULT family should return a wxSWISS one instead of
 822             // creating a new one
 823             bool same = (fontFamily == family) ||
 824                         (fontFamily == wxFONTFAMILY_SWISS && family == wxFONTFAMILY_DEFAULT);
 825 #else // !GTK
 826             // VZ: but why elsewhere do we require an exact match? mystery...
 827             bool same = fontFamily == family;
 828 #endif // GTK/!GTK
 829
 830             // empty facename matches anything at all: this is bad because
 831             // depending on which fonts are already created, we might get back
 832             // a different font if we create it with empty facename, but it is
 833             // still better than never matching anything in the cache at all
 834             // in this case
 835             if ( same && !facename.empty() )
 836             {
 837                 const wxString& fontFace = font->GetFaceName();
 838
 839                 // empty facename matches everything
 840                 same = !fontFace || fontFace == facename;
 841             }
 842
 843             if ( same && (encoding != wxFONTENCODING_DEFAULT) )
 844             {
 845                 // have to match the encoding too
 846                 same = font->GetEncoding() == encoding;
 847             }
 848
 849             if ( same )
 850             {
 851                 return font;
 852             }
 853         }
 854     }
 855
 856     // font not found, create the new one
 857     font = NULL;
 858     wxFont fontTmp(pointSize, family, style, weight, underline, facename, encoding);
 859     if (fontTmp.Ok())
 860     {
 861         font = new wxFont(fontTmp);
 862         list.Append(font);
 863     }
 864
 865     return font;
 866 }
 867
 868 #if WXWIN_COMPATIBILITY_2_6
 869 void wxBrushList::AddBrush(wxBrush*) { }
 870 void wxBrushList::RemoveBrush(wxBrush*) { }
 871 void wxFontList::AddFont(wxFont*) { }
 872 void wxFontList::RemoveFont(wxFont*) { }
 873 void wxPenList::AddPen(wxPen*) { }
 874 void wxPenList::RemovePen(wxPen*) { }
 875 #endif
 876
 877 wxSize wxGetDisplaySize()
 878 {
 879     int x, y;
 880     wxDisplaySize(& x, & y);
 881     return wxSize(x, y);
 882 }
 883
 884 wxRect wxGetClientDisplayRect()
 885 {
 886     int x, y, width, height;
 887     wxClientDisplayRect(&x, &y, &width, &height);  // call plat-specific version
 888     return wxRect(x, y, width, height);
 889 }
 890
 891 wxSize wxGetDisplaySizeMM()
 892 {
 893     int x, y;
 894     wxDisplaySizeMM(& x, & y);
 895     return wxSize(x, y);
 896 }
 897
 898 wxSize wxGetDisplayPPI()
 899 {
 900     const wxSize pixels = wxGetDisplaySize();
 901     const wxSize mm = wxGetDisplaySizeMM();
 902
 903     return wxSize((int)((pixels.x * inches2mm) / mm.x),
 904                   (int)((pixels.y * inches2mm) / mm.y));
 905 }
 906
 907 wxResourceCache::~wxResourceCache ()
 908 {
 909     wxList::compatibility_iterator node = GetFirst ();
 910     while (node) {
 911         wxObject *item = (wxObject *)node->GetData();
 912         delete item;
 913
 914         node = node->GetNext ();
 915     }
 916 }