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 wxRealPoint::wxRealPoint(const wxPoint& pt)
 256  : x(pt.x), y(pt.y)
 257 {
 258 }
 259
 260 // ============================================================================
 261 // wxColourDatabase
 262 // ============================================================================
 263
 264 // ----------------------------------------------------------------------------
 265 // wxColourDatabase ctor/dtor
 266 // ----------------------------------------------------------------------------
 267
 268 wxColourDatabase::wxColourDatabase ()
 269 {
 270     // will be created on demand in Initialize()
 271     m_map = NULL;
 272 }
 273
 274 wxColourDatabase::~wxColourDatabase ()
 275 {
 276     if ( m_map )
 277     {
 278         WX_CLEAR_HASH_MAP(wxStringToColourHashMap, *m_map);
 279
 280         delete m_map;
 281     }
 282
 283 #ifdef __WXPM__
 284     delete [] m_palTable;
 285 #endif
 286 }
 287
 288 // Colour database stuff
 289 void wxColourDatabase::Initialize()
 290 {
 291     if ( m_map )
 292     {
 293         // already initialized
 294         return;
 295     }
 296
 297     m_map = new wxStringToColourHashMap;
 298
 299     static const struct wxColourDesc
 300     {
 301         const wxChar *name;
 302         unsigned char r,g,b;
 303     }
 304     wxColourTable[] =
 305     {
 306         {wxT("AQUAMARINE"),112, 219, 147},
 307         {wxT("BLACK"),0, 0, 0},
 308         {wxT("BLUE"), 0, 0, 255},
 309         {wxT("BLUE VIOLET"), 159, 95, 159},
 310         {wxT("BROWN"), 165, 42, 42},
 311         {wxT("CADET BLUE"), 95, 159, 159},
 312         {wxT("CORAL"), 255, 127, 0},
 313         {wxT("CORNFLOWER BLUE"), 66, 66, 111},
 314         {wxT("CYAN"), 0, 255, 255},
 315         {wxT("DARK GREY"), 47, 47, 47},   // ?
 316
 317         {wxT("DARK GREEN"), 47, 79, 47},
 318         {wxT("DARK OLIVE GREEN"), 79, 79, 47},
 319         {wxT("DARK ORCHID"), 153, 50, 204},
 320         {wxT("DARK SLATE BLUE"), 107, 35, 142},
 321         {wxT("DARK SLATE GREY"), 47, 79, 79},
 322         {wxT("DARK TURQUOISE"), 112, 147, 219},
 323         {wxT("DIM GREY"), 84, 84, 84},
 324         {wxT("FIREBRICK"), 142, 35, 35},
 325         {wxT("FOREST GREEN"), 35, 142, 35},
 326         {wxT("GOLD"), 204, 127, 50},
 327         {wxT("GOLDENROD"), 219, 219, 112},
 328         {wxT("GREY"), 128, 128, 128},
 329         {wxT("GREEN"), 0, 255, 0},
 330         {wxT("GREEN YELLOW"), 147, 219, 112},
 331         {wxT("INDIAN RED"), 79, 47, 47},
 332         {wxT("KHAKI"), 159, 159, 95},
 333         {wxT("LIGHT BLUE"), 191, 216, 216},
 334         {wxT("LIGHT GREY"), 192, 192, 192},
 335         {wxT("LIGHT STEEL BLUE"), 143, 143, 188},
 336         {wxT("LIME GREEN"), 50, 204, 50},
 337         {wxT("LIGHT MAGENTA"), 255, 0, 255},
 338         {wxT("MAGENTA"), 255, 0, 255},
 339         {wxT("MAROON"), 142, 35, 107},
 340         {wxT("MEDIUM AQUAMARINE"), 50, 204, 153},
 341         {wxT("MEDIUM GREY"), 100, 100, 100},
 342         {wxT("MEDIUM BLUE"), 50, 50, 204},
 343         {wxT("MEDIUM FOREST GREEN"), 107, 142, 35},
 344         {wxT("MEDIUM GOLDENROD"), 234, 234, 173},
 345         {wxT("MEDIUM ORCHID"), 147, 112, 219},
 346         {wxT("MEDIUM SEA GREEN"), 66, 111, 66},
 347         {wxT("MEDIUM SLATE BLUE"), 127, 0, 255},
 348         {wxT("MEDIUM SPRING GREEN"), 127, 255, 0},
 349         {wxT("MEDIUM TURQUOISE"), 112, 219, 219},
 350         {wxT("MEDIUM VIOLET RED"), 219, 112, 147},
 351         {wxT("MIDNIGHT BLUE"), 47, 47, 79},
 352         {wxT("NAVY"), 35, 35, 142},
 353         {wxT("ORANGE"), 204, 50, 50},
 354         {wxT("ORANGE RED"), 255, 0, 127},
 355         {wxT("ORCHID"), 219, 112, 219},
 356         {wxT("PALE GREEN"), 143, 188, 143},
 357         {wxT("PINK"), 255, 192, 203},
 358         {wxT("PLUM"), 234, 173, 234},
 359         {wxT("PURPLE"), 176, 0, 255},
 360         {wxT("RED"), 255, 0, 0},
 361         {wxT("SALMON"), 111, 66, 66},
 362         {wxT("SEA GREEN"), 35, 142, 107},
 363         {wxT("SIENNA"), 142, 107, 35},
 364         {wxT("SKY BLUE"), 50, 153, 204},
 365         {wxT("SLATE BLUE"), 0, 127, 255},
 366         {wxT("SPRING GREEN"), 0, 255, 127},
 367         {wxT("STEEL BLUE"), 35, 107, 142},
 368         {wxT("TAN"), 219, 147, 112},
 369         {wxT("THISTLE"), 216, 191, 216},
 370         {wxT("TURQUOISE"), 173, 234, 234},
 371         {wxT("VIOLET"), 79, 47, 79},
 372         {wxT("VIOLET RED"), 204, 50, 153},
 373         {wxT("WHEAT"), 216, 216, 191},
 374         {wxT("WHITE"), 255, 255, 255},
 375         {wxT("YELLOW"), 255, 255, 0},
 376         {wxT("YELLOW GREEN"), 153, 204, 50}
 377     };
 378
 379     size_t n;
 380
 381     for ( n = 0; n < WXSIZEOF(wxColourTable); n++ )
 382     {
 383         const wxColourDesc& cc = wxColourTable[n];
 384         (*m_map)[cc.name] = new wxColour(cc.r, cc.g, cc.b);
 385     }
 386
 387 #ifdef __WXPM__
 388     m_palTable = new long[n];
 389     for ( n = 0; n < WXSIZEOF(wxColourTable); n++ )
 390     {
 391         const wxColourDesc& cc = wxColourTable[n];
 392         m_palTable[n] = OS2RGB(cc.r,cc.g,cc.b);
 393     }
 394     m_nSize = n;
 395 #endif
 396 }
 397
 398 // ----------------------------------------------------------------------------
 399 // wxColourDatabase operations
 400 // ----------------------------------------------------------------------------
 401
 402 void wxColourDatabase::AddColour(const wxString& name, const wxColour& colour)
 403 {
 404     Initialize();
 405
 406     // canonicalize the colour names before using them as keys: they should be
 407     // in upper case
 408     wxString colName = name;
 409     colName.MakeUpper();
 410
 411     // ... and we also allow both grey/gray
 412     wxString colNameAlt = colName;
 413     if ( !colNameAlt.Replace(wxT("GRAY"), wxT("GREY")) )
 414     {
 415         // but in this case it is not necessary so avoid extra search below
 416         colNameAlt.clear();
 417     }
 418
 419     wxStringToColourHashMap::iterator it = m_map->find(colName);
 420     if ( it == m_map->end() && !colNameAlt.empty() )
 421         it = m_map->find(colNameAlt);
 422     if ( it != m_map->end() )
 423     {
 424         *(it->second) = colour;
 425     }
 426     else // new colour
 427     {
 428         (*m_map)[colName] = new wxColour(colour);
 429     }
 430 }
 431
 432 wxColour wxColourDatabase::Find(const wxString& colour) const
 433 {
 434     wxColourDatabase * const self = wxConstCast(this, wxColourDatabase);
 435     self->Initialize();
 436
 437     // make the comparaison case insensitive and also match both grey and gray
 438     wxString colName = colour;
 439     colName.MakeUpper();
 440     wxString colNameAlt = colName;
 441     if ( !colNameAlt.Replace(wxT("GRAY"), wxT("GREY")) )
 442         colNameAlt.clear();
 443
 444     wxStringToColourHashMap::iterator it = m_map->find(colName);
 445     if ( it == m_map->end() && !colNameAlt.empty() )
 446         it = m_map->find(colNameAlt);
 447     if ( it != m_map->end() )
 448         return *(it->second);
 449
 450     // we did not find any result in existing colours:
 451     // we won't use wxString -> wxColour conversion because the
 452     // wxColour::Set(const wxString &) function which does that conversion
 453     // internally uses this function (wxColourDatabase::Find) and we want
 454     // to avoid infinite recursion !
 455     return wxNullColour;
 456 }
 457
 458 wxString wxColourDatabase::FindName(const wxColour& colour) const
 459 {
 460     wxColourDatabase * const self = wxConstCast(this, wxColourDatabase);
 461     self->Initialize();
 462
 463     typedef wxStringToColourHashMap::iterator iterator;
 464
 465     for ( iterator it = m_map->begin(), en = m_map->end(); it != en; ++it )
 466     {
 467         if ( *(it->second) == colour )
 468             return it->first;
 469     }
 470
 471     return wxEmptyString;
 472 }
 473
 474 // ----------------------------------------------------------------------------
 475 // deprecated wxColourDatabase methods
 476 // ----------------------------------------------------------------------------
 477
 478 #if WXWIN_COMPATIBILITY_2_6
 479 wxColour *wxColourDatabase::FindColour(const wxString& name)
 480 {
 481     // This function is deprecated, use Find() instead.
 482     // Formerly this function sometimes would return a deletable pointer and
 483     // sometimes a non-deletable one (when returning a colour from the database).
 484     // Trying to delete the latter anyway results in problems, so probably
 485     // nobody ever freed the pointers. Currently it always returns a new
 486     // instance, which means there will be memory leaks.
 487     wxLogDebug(wxT("wxColourDataBase::FindColour():")
 488         wxT(" Please use wxColourDataBase::Find() instead"));
 489
 490     // using a static variable here is not the most elegant solution but unless
 491     // we want to make wxStringToColourHashMap public (i.e. move it to the
 492     // header) so that we could have a member function returning
 493     // wxStringToColourHashMap::iterator, there is really no good way to do it
 494     // otherwise
 495     //
 496     // and knowing that this function is going to disappear in the next release
 497     // anyhow I don't want to waste time on this
 498
 499     static wxColour s_col;
 500
 501     s_col = Find(name);
 502     if ( !s_col.Ok() )
 503         return NULL;
 504
 505     return new wxColour(s_col);
 506 }
 507 #endif // WXWIN_COMPATIBILITY_2_6
 508
 509 // ============================================================================
 510 // stock objects
 511 // ============================================================================
 512
 513 static wxStockGDI gs_wxStockGDI_instance;
 514 wxStockGDI* wxStockGDI::ms_instance = &gs_wxStockGDI_instance;
 515 wxObject* wxStockGDI::ms_stockObject[ITEMCOUNT];
 516
 517 wxStockGDI::wxStockGDI()
 518 {
 519 }
 520
 521 wxStockGDI::~wxStockGDI()
 522 {
 523 }
 524
 525 void wxStockGDI::DeleteAll()
 526 {
 527     for (unsigned i = 0; i < ITEMCOUNT; i++)
 528     {
 529         wxDELETE(ms_stockObject[i]);
 530     }
 531 }
 532
 533 const wxBrush* wxStockGDI::GetBrush(Item item)
 534 {
 535     wxBrush* brush = static_cast<wxBrush*>(ms_stockObject[item]);
 536     if (brush == NULL)
 537     {
 538         switch (item)
 539         {
 540         case BRUSH_BLACK:
 541             brush = new wxBrush(*GetColour(COLOUR_BLACK), wxBRUSHSTYLE_SOLID);
 542             break;
 543         case BRUSH_BLUE:
 544             brush = new wxBrush(*GetColour(COLOUR_BLUE), wxBRUSHSTYLE_SOLID);
 545             break;
 546         case BRUSH_CYAN:
 547             brush = new wxBrush(*GetColour(COLOUR_CYAN), wxBRUSHSTYLE_SOLID);
 548             break;
 549         case BRUSH_GREEN:
 550             brush = new wxBrush(*GetColour(COLOUR_GREEN), wxBRUSHSTYLE_SOLID);
 551             break;
 552         case BRUSH_YELLOW:
 553             brush = new wxBrush(*GetColour(COLOUR_YELLOW), wxBRUSHSTYLE_SOLID);
 554             break;
 555         case BRUSH_GREY:
 556             brush = new wxBrush(wxColour(wxT("GREY")), wxBRUSHSTYLE_SOLID);
 557             break;
 558         case BRUSH_LIGHTGREY:
 559             brush = new wxBrush(*GetColour(COLOUR_LIGHTGREY), wxBRUSHSTYLE_SOLID);
 560             break;
 561         case BRUSH_MEDIUMGREY:
 562             brush = new wxBrush(wxColour(wxT("MEDIUM GREY")), wxBRUSHSTYLE_SOLID);
 563             break;
 564         case BRUSH_RED:
 565             brush = new wxBrush(*GetColour(COLOUR_RED), wxBRUSHSTYLE_SOLID);
 566             break;
 567         case BRUSH_TRANSPARENT:
 568             brush = new wxBrush(*GetColour(COLOUR_BLACK), wxBRUSHSTYLE_TRANSPARENT);
 569             break;
 570         case BRUSH_WHITE:
 571             brush = new wxBrush(*GetColour(COLOUR_WHITE), wxBRUSHSTYLE_SOLID);
 572             break;
 573         default:
 574             wxFAIL;
 575         }
 576         ms_stockObject[item] = brush;
 577     }
 578     return brush;
 579 }
 580
 581 const wxColour* wxStockGDI::GetColour(Item item)
 582 {
 583     wxColour* colour = static_cast<wxColour*>(ms_stockObject[item]);
 584     if (colour == NULL)
 585     {
 586         switch (item)
 587         {
 588         case COLOUR_BLACK:
 589             colour = new wxColour(0, 0, 0);
 590             break;
 591         case COLOUR_BLUE:
 592             colour = new wxColour(0, 0, 255);
 593             break;
 594         case COLOUR_CYAN:
 595             colour = new wxColour(wxT("CYAN"));
 596             break;
 597         case COLOUR_GREEN:
 598             colour = new wxColour(0, 255, 0);
 599             break;
 600         case COLOUR_YELLOW:
 601             colour = new wxColour(255, 255, 0);
 602             break;
 603         case COLOUR_LIGHTGREY:
 604             colour = new wxColour(wxT("LIGHT GREY"));
 605             break;
 606         case COLOUR_RED:
 607             colour = new wxColour(255, 0, 0);
 608             break;
 609         case COLOUR_WHITE:
 610             colour = new wxColour(255, 255, 255);
 611             break;
 612         default:
 613             wxFAIL;
 614         }
 615         ms_stockObject[item] = colour;
 616     }
 617     return colour;
 618 }
 619
 620 const wxCursor* wxStockGDI::GetCursor(Item item)
 621 {
 622     wxCursor* cursor = static_cast<wxCursor*>(ms_stockObject[item]);
 623     if (cursor == NULL)
 624     {
 625         switch (item)
 626         {
 627         case CURSOR_CROSS:
 628             cursor = new wxCursor(wxCURSOR_CROSS);
 629             break;
 630         case CURSOR_HOURGLASS:
 631             cursor = new wxCursor(wxCURSOR_WAIT);
 632             break;
 633         case CURSOR_STANDARD:
 634             cursor = new wxCursor(wxCURSOR_ARROW);
 635             break;
 636         default:
 637             wxFAIL;
 638         }
 639         ms_stockObject[item] = cursor;
 640     }
 641     return cursor;
 642 }
 643
 644 const wxFont* wxStockGDI::GetFont(Item item)
 645 {
 646     wxFont* font = static_cast<wxFont*>(ms_stockObject[item]);
 647     if (font == NULL)
 648     {
 649         switch (item)
 650         {
 651         case FONT_ITALIC:
 652             font = new wxFont(GetFont(FONT_NORMAL)->GetPointSize(), wxROMAN, wxITALIC, wxNORMAL);
 653             break;
 654         case FONT_NORMAL:
 655             font = new wxFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 656             break;
 657         case FONT_SMALL:
 658             font = new wxFont(GetFont(FONT_NORMAL)->GetPointSize()
 659                     // Using the font 2 points smaller than the normal one
 660                     // results in font so small as to be unreadable under MSW.
 661                     // We might want to actually use -1 under the other
 662                     // platforms too but for now be conservative and keep -2
 663                     // there for compatibility with the old behaviour as the
 664                     // small font seems to be readable enough there as it is.
 665 #ifdef __WXMSW__
 666                     - 1,
 667 #else
 668                     - 2,
 669 #endif
 670                     wxSWISS, wxNORMAL, wxNORMAL);
 671             break;
 672         case FONT_SWISS:
 673             font = new wxFont(GetFont(FONT_NORMAL)->GetPointSize(), wxSWISS, wxNORMAL, wxNORMAL);
 674             break;
 675         default:
 676             wxFAIL;
 677         }
 678         ms_stockObject[item] = font;
 679     }
 680     return font;
 681 }
 682
 683 const wxPen* wxStockGDI::GetPen(Item item)
 684 {
 685     wxPen* pen = static_cast<wxPen*>(ms_stockObject[item]);
 686     if (pen == NULL)
 687     {
 688         switch (item)
 689         {
 690         case PEN_BLACK:
 691             pen = new wxPen(*GetColour(COLOUR_BLACK), 1, wxPENSTYLE_SOLID);
 692             break;
 693         case PEN_BLACKDASHED:
 694             pen = new wxPen(*GetColour(COLOUR_BLACK), 1, wxPENSTYLE_SHORT_DASH);
 695             break;
 696         case PEN_BLUE:
 697             pen = new wxPen(*GetColour(COLOUR_BLUE), 1, wxPENSTYLE_SOLID);
 698             break;
 699         case PEN_CYAN:
 700             pen = new wxPen(*GetColour(COLOUR_CYAN), 1, wxPENSTYLE_SOLID);
 701             break;
 702         case PEN_GREEN:
 703             pen = new wxPen(*GetColour(COLOUR_GREEN), 1, wxPENSTYLE_SOLID);
 704             break;
 705         case PEN_YELLOW:
 706             pen = new wxPen(*GetColour(COLOUR_YELLOW), 1, wxPENSTYLE_SOLID);
 707             break;
 708         case PEN_GREY:
 709             pen = new wxPen(wxColour(wxT("GREY")), 1, wxPENSTYLE_SOLID);
 710             break;
 711         case PEN_LIGHTGREY:
 712             pen = new wxPen(*GetColour(COLOUR_LIGHTGREY), 1, wxPENSTYLE_SOLID);
 713             break;
 714         case PEN_MEDIUMGREY:
 715             pen = new wxPen(wxColour(wxT("MEDIUM GREY")), 1, wxPENSTYLE_SOLID);
 716             break;
 717         case PEN_RED:
 718             pen = new wxPen(*GetColour(COLOUR_RED), 1, wxPENSTYLE_SOLID);
 719             break;
 720         case PEN_TRANSPARENT:
 721             pen = new wxPen(*GetColour(COLOUR_BLACK), 1, wxPENSTYLE_TRANSPARENT);
 722             break;
 723         case PEN_WHITE:
 724             pen = new wxPen(*GetColour(COLOUR_WHITE), 1, wxPENSTYLE_SOLID);
 725             break;
 726         default:
 727             wxFAIL;
 728         }
 729         ms_stockObject[item] = pen;
 730     }
 731     return pen;
 732 }
 733
 734 void wxInitializeStockLists()
 735 {
 736     wxTheColourDatabase = new wxColourDatabase;
 737
 738     wxTheBrushList = new wxBrushList;
 739     wxThePenList = new wxPenList;
 740     wxTheFontList = new wxFontList;
 741 }
 742
 743 void wxDeleteStockLists()
 744 {
 745     wxDELETE(wxTheBrushList);
 746     wxDELETE(wxThePenList);
 747     wxDELETE(wxTheFontList);
 748
 749     // wxTheColourDatabase is cleaned up by wxAppBase::CleanUp()
 750 }
 751
 752 // ============================================================================
 753 // wxTheXXXList stuff (semi-obsolete)
 754 // ============================================================================
 755
 756 wxGDIObjListBase::wxGDIObjListBase()
 757 {
 758 }
 759
 760 wxGDIObjListBase::~wxGDIObjListBase()
 761 {
 762     for (wxList::compatibility_iterator node = list.GetFirst(); node; node = node->GetNext())
 763     {
 764         delete static_cast<wxObject*>(node->GetData());
 765     }
 766 }
 767
 768 wxPen *wxPenList::FindOrCreatePen (const wxColour& colour, int width, wxPenStyle style)
 769 {
 770     for ( wxList::compatibility_iterator node = list.GetFirst();
 771           node;
 772           node = node->GetNext() )
 773     {
 774         wxPen * const pen = (wxPen *) node->GetData();
 775         if ( pen->GetWidth () == width &&
 776                 pen->GetStyle () == style &&
 777                     pen->GetColour() == colour )
 778             return pen;
 779     }
 780
 781     wxPen* pen = NULL;
 782     wxPen penTmp(colour, width, style);
 783     if (penTmp.Ok())
 784     {
 785         pen = new wxPen(penTmp);
 786         list.Append(pen);
 787     }
 788
 789     return pen;
 790 }
 791
 792 wxBrush *wxBrushList::FindOrCreateBrush (const wxColour& colour, wxBrushStyle style)
 793 {
 794     for ( wxList::compatibility_iterator node = list.GetFirst();
 795           node;
 796           node = node->GetNext() )
 797     {
 798         wxBrush * const brush = (wxBrush *) node->GetData ();
 799         if ( brush->GetStyle() == style && brush->GetColour() == colour )
 800             return brush;
 801     }
 802
 803     wxBrush* brush = NULL;
 804     wxBrush brushTmp(colour, style);
 805     if (brushTmp.Ok())
 806     {
 807         brush = new wxBrush(brushTmp);
 808         list.Append(brush);
 809     }
 810
 811     return brush;
 812 }
 813
 814 wxFont *wxFontList::FindOrCreateFont(int pointSize,
 815                                      wxFontFamily family,
 816                                      wxFontStyle style,
 817                                      wxFontWeight weight,
 818                                      bool underline,
 819                                      const wxString& facename,
 820                                      wxFontEncoding encoding)
 821 {
 822     wxFont *font;
 823     wxList::compatibility_iterator node;
 824     for (node = list.GetFirst(); node; node = node->GetNext())
 825     {
 826         font = (wxFont *)node->GetData();
 827         if (
 828              font->GetPointSize () == pointSize &&
 829              font->GetStyle () == style &&
 830              font->GetWeight () == weight &&
 831              font->GetUnderlined () == underline )
 832         {
 833             wxFontFamily fontFamily = (wxFontFamily)font->GetFamily();
 834
 835 #if defined(__WXGTK__)
 836             // under GTK the default family is wxSWISS, so looking for a font
 837             // with wxDEFAULT family should return a wxSWISS one instead of
 838             // creating a new one
 839             bool same = (fontFamily == family) ||
 840                         (fontFamily == wxFONTFAMILY_SWISS && family == wxFONTFAMILY_DEFAULT);
 841 #else // !GTK
 842             // VZ: but why elsewhere do we require an exact match? mystery...
 843             bool same = fontFamily == family;
 844 #endif // GTK/!GTK
 845
 846             // empty facename matches anything at all: this is bad because
 847             // depending on which fonts are already created, we might get back
 848             // a different font if we create it with empty facename, but it is
 849             // still better than never matching anything in the cache at all
 850             // in this case
 851             if ( same && !facename.empty() )
 852             {
 853                 const wxString& fontFace = font->GetFaceName();
 854
 855                 // empty facename matches everything
 856                 same = !fontFace || fontFace == facename;
 857             }
 858
 859             if ( same && (encoding != wxFONTENCODING_DEFAULT) )
 860             {
 861                 // have to match the encoding too
 862                 same = font->GetEncoding() == encoding;
 863             }
 864
 865             if ( same )
 866             {
 867                 return font;
 868             }
 869         }
 870     }
 871
 872     // font not found, create the new one
 873     font = NULL;
 874     wxFont fontTmp(pointSize, family, style, weight, underline, facename, encoding);
 875     if (fontTmp.Ok())
 876     {
 877         font = new wxFont(fontTmp);
 878         list.Append(font);
 879     }
 880
 881     return font;
 882 }
 883
 884 #if WXWIN_COMPATIBILITY_2_6
 885 void wxBrushList::AddBrush(wxBrush*) { }
 886 void wxBrushList::RemoveBrush(wxBrush*) { }
 887 void wxFontList::AddFont(wxFont*) { }
 888 void wxFontList::RemoveFont(wxFont*) { }
 889 void wxPenList::AddPen(wxPen*) { }
 890 void wxPenList::RemovePen(wxPen*) { }
 891 #endif
 892
 893 wxSize wxGetDisplaySize()
 894 {
 895     int x, y;
 896     wxDisplaySize(& x, & y);
 897     return wxSize(x, y);
 898 }
 899
 900 wxRect wxGetClientDisplayRect()
 901 {
 902     int x, y, width, height;
 903     wxClientDisplayRect(&x, &y, &width, &height);  // call plat-specific version
 904     return wxRect(x, y, width, height);
 905 }
 906
 907 wxSize wxGetDisplaySizeMM()
 908 {
 909     int x, y;
 910     wxDisplaySizeMM(& x, & y);
 911     return wxSize(x, y);
 912 }
 913
 914 wxSize wxGetDisplayPPI()
 915 {
 916     const wxSize pixels = wxGetDisplaySize();
 917     const wxSize mm = wxGetDisplaySizeMM();
 918
 919     return wxSize((int)((pixels.x * inches2mm) / mm.x),
 920                   (int)((pixels.y * inches2mm) / mm.y));
 921 }
 922
 923 wxResourceCache::~wxResourceCache ()
 924 {
 925     wxList::compatibility_iterator node = GetFirst ();
 926     while (node) {
 927         wxObject *item = (wxObject *)node->GetData();
 928         delete item;
 929
 930         node = node->GetNext ();
 931     }
 932 }