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 // Copyright:   (c) Julian Smart
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #ifdef __BORLANDC__
  15     #pragma hdrstop
  16 #endif
  17
  18 #include "wx/gdicmn.h"
  19 #include "wx/gdiobj.h"
  20
  21 #ifndef WX_PRECOMP
  22     #include "wx/log.h"
  23     #include "wx/pen.h"
  24     #include "wx/brush.h"
  25     #include "wx/palette.h"
  26     #include "wx/icon.h"
  27     #include "wx/iconbndl.h"
  28     #include "wx/cursor.h"
  29     #include "wx/settings.h"
  30     #include "wx/bitmap.h"
  31     #include "wx/colour.h"
  32     #include "wx/font.h"
  33     #include "wx/math.h"
  34 #endif
  35
  36
  37 IMPLEMENT_ABSTRACT_CLASS(wxGDIObject, wxObject)
  38
  39
  40 WXDLLIMPEXP_DATA_CORE(wxBrushList*) wxTheBrushList;
  41 WXDLLIMPEXP_DATA_CORE(wxFontList*)  wxTheFontList;
  42 WXDLLIMPEXP_DATA_CORE(wxPenList*)   wxThePenList;
  43
  44 WXDLLIMPEXP_DATA_CORE(wxColourDatabase*) wxTheColourDatabase;
  45
  46 WXDLLIMPEXP_DATA_CORE(wxBitmap)  wxNullBitmap;
  47 WXDLLIMPEXP_DATA_CORE(wxBrush)   wxNullBrush;
  48 WXDLLIMPEXP_DATA_CORE(wxColour)  wxNullColour;
  49 WXDLLIMPEXP_DATA_CORE(wxCursor)  wxNullCursor;
  50 WXDLLIMPEXP_DATA_CORE(wxFont)    wxNullFont;
  51 WXDLLIMPEXP_DATA_CORE(wxIcon)    wxNullIcon;
  52 WXDLLIMPEXP_DATA_CORE(wxPen)     wxNullPen;
  53 #if wxUSE_PALETTE
  54 WXDLLIMPEXP_DATA_CORE(wxPalette) wxNullPalette;
  55 #endif
  56 WXDLLIMPEXP_DATA_CORE(wxIconBundle) wxNullIconBundle;
  57
  58 const wxSize wxDefaultSize(wxDefaultCoord, wxDefaultCoord);
  59 const wxPoint wxDefaultPosition(wxDefaultCoord, wxDefaultCoord);
  60
  61 #include "wx/listimpl.cpp"
  62 WX_DEFINE_LIST(wxPointList)
  63
  64
  65 #if wxUSE_EXTENDED_RTTI
  66
  67 // wxPoint
  68
  69 template<> void wxStringReadValue(const wxString &s , wxPoint &data )
  70 {
  71     wxSscanf(s, wxT("%d,%d"), &data.x , &data.y ) ;
  72 }
  73
  74 template<> void wxStringWriteValue(wxString &s , const wxPoint &data )
  75 {
  76     s = wxString::Format(wxT("%d,%d"), data.x , data.y ) ;
  77 }
  78
  79 wxCUSTOM_TYPE_INFO(wxPoint, wxToStringConverter<wxPoint> , wxFromStringConverter<wxPoint>)
  80
  81 template<> void wxStringReadValue(const wxString &s , wxSize &data )
  82 {
  83     wxSscanf(s, wxT("%d,%d"), &data.x , &data.y ) ;
  84 }
  85
  86 template<> void wxStringWriteValue(wxString &s , const wxSize &data )
  87 {
  88     s = wxString::Format(wxT("%d,%d"), data.x , data.y ) ;
  89 }
  90
  91 wxCUSTOM_TYPE_INFO(wxSize, wxToStringConverter<wxSize> , wxFromStringConverter<wxSize>)
  92
  93 #endif
  94
  95 wxRect::wxRect(const wxPoint& point1, const wxPoint& point2)
  96 {
  97     x = point1.x;
  98     y = point1.y;
  99     width = point2.x - point1.x;
 100     height = point2.y - point1.y;
 101
 102     if (width < 0)
 103     {
 104         width = -width;
 105         x = point2.x;
 106     }
 107     width++;
 108
 109     if (height < 0)
 110     {
 111         height = -height;
 112         y = point2.y;
 113     }
 114     height++;
 115 }
 116
 117 wxRect& wxRect::Union(const wxRect& rect)
 118 {
 119     // ignore empty rectangles: union with an empty rectangle shouldn't extend
 120     // this one to (0, 0)
 121     if ( !width || !height )
 122     {
 123         *this = rect;
 124     }
 125     else if ( rect.width && rect.height )
 126     {
 127         int x1 = wxMin(x, rect.x);
 128         int y1 = wxMin(y, rect.y);
 129         int y2 = wxMax(y + height, rect.height + rect.y);
 130         int x2 = wxMax(x + width, rect.width + rect.x);
 131
 132         x = x1;
 133         y = y1;
 134         width = x2 - x1;
 135         height = y2 - y1;
 136     }
 137     //else: we're not empty and rect is empty
 138
 139     return *this;
 140 }
 141
 142 wxRect& wxRect::Inflate(wxCoord dx, wxCoord dy)
 143 {
 144      if (-2*dx>width)
 145      {
 146          // Don't allow deflate to eat more width than we have,
 147          // a well-defined rectangle cannot have negative width.
 148          x+=width/2;
 149          width=0;
 150      }
 151      else
 152      {
 153          // The inflate is valid.
 154          x-=dx;
 155          width+=2*dx;
 156      }
 157
 158      if (-2*dy>height)
 159      {
 160          // Don't allow deflate to eat more height than we have,
 161          // a well-defined rectangle cannot have negative height.
 162          y+=height/2;
 163          height=0;
 164      }
 165      else
 166      {
 167          // The inflate is valid.
 168          y-=dy;
 169          height+=2*dy;
 170      }
 171
 172     return *this;
 173 }
 174
 175 bool wxRect::Contains(int cx, int cy) const
 176 {
 177     return ( (cx >= x) && (cy >= y)
 178           && ((cy - y) < height)
 179           && ((cx - x) < width)
 180           );
 181 }
 182
 183 bool wxRect::Contains(const wxRect& rect) const
 184 {
 185     return Contains(rect.GetTopLeft()) && Contains(rect.GetBottomRight());
 186 }
 187
 188 wxRect& wxRect::Intersect(const wxRect& rect)
 189 {
 190     int x2 = GetRight(),
 191         y2 = GetBottom();
 192
 193     if ( x < rect.x )
 194         x = rect.x;
 195     if ( y < rect.y )
 196         y = rect.y;
 197     if ( x2 > rect.GetRight() )
 198         x2 = rect.GetRight();
 199     if ( y2 > rect.GetBottom() )
 200         y2 = rect.GetBottom();
 201
 202     width = x2 - x + 1;
 203     height = y2 - y + 1;
 204
 205     if ( width <= 0 || height <= 0 )
 206     {
 207         width =
 208         height = 0;
 209     }
 210
 211     return *this;
 212 }
 213
 214 bool wxRect::Intersects(const wxRect& rect) const
 215 {
 216     wxRect r = Intersect(rect);
 217
 218     // if there is no intersection, both width and height are 0
 219     return r.width != 0;
 220 }
 221
 222 wxRect& wxRect::operator+=(const wxRect& rect)
 223 {
 224     *this = *this + rect;
 225     return *this;
 226 }
 227
 228
 229 wxRect& wxRect::operator*=(const wxRect& rect)
 230 {
 231     *this = *this * rect;
 232     return *this;
 233 }
 234
 235
 236 wxRect operator+(const wxRect& r1, const wxRect& r2)
 237 {
 238     int x1 = wxMin(r1.x, r2.x);
 239     int y1 = wxMin(r1.y, r2.y);
 240     int y2 = wxMax(r1.y+r1.height, r2.height+r2.y);
 241     int x2 = wxMax(r1.x+r1.width, r2.width+r2.x);
 242     return wxRect(x1, y1, x2-x1, y2-y1);
 243 }
 244
 245 wxRect operator*(const wxRect& r1, const wxRect& r2)
 246 {
 247     int x1 = wxMax(r1.x, r2.x);
 248     int y1 = wxMax(r1.y, r2.y);
 249     int y2 = wxMin(r1.y+r1.height, r2.height+r2.y);
 250     int x2 = wxMin(r1.x+r1.width, r2.width+r2.x);
 251     return wxRect(x1, y1, x2-x1, y2-y1);
 252 }
 253
 254 wxRealPoint::wxRealPoint(const wxPoint& pt)
 255  : x(pt.x), y(pt.y)
 256 {
 257 }
 258
 259 // ============================================================================
 260 // wxColourDatabase
 261 // ============================================================================
 262
 263 // ----------------------------------------------------------------------------
 264 // wxColourDatabase ctor/dtor
 265 // ----------------------------------------------------------------------------
 266
 267 wxColourDatabase::wxColourDatabase ()
 268 {
 269     // will be created on demand in Initialize()
 270     m_map = NULL;
 271 }
 272
 273 wxColourDatabase::~wxColourDatabase ()
 274 {
 275     if ( m_map )
 276     {
 277         WX_CLEAR_HASH_MAP(wxStringToColourHashMap, *m_map);
 278
 279         delete m_map;
 280     }
 281
 282 #ifdef __WXPM__
 283     delete [] m_palTable;
 284 #endif
 285 }
 286
 287 // Colour database stuff
 288 void wxColourDatabase::Initialize()
 289 {
 290     if ( m_map )
 291     {
 292         // already initialized
 293         return;
 294     }
 295
 296     m_map = new wxStringToColourHashMap;
 297
 298     static const struct wxColourDesc
 299     {
 300         const wxChar *name;
 301         unsigned char r,g,b;
 302     }
 303     wxColourTable[] =
 304     {
 305         {wxT("AQUAMARINE"),112, 219, 147},
 306         {wxT("BLACK"),0, 0, 0},
 307         {wxT("BLUE"), 0, 0, 255},
 308         {wxT("BLUE VIOLET"), 159, 95, 159},
 309         {wxT("BROWN"), 165, 42, 42},
 310         {wxT("CADET BLUE"), 95, 159, 159},
 311         {wxT("CORAL"), 255, 127, 0},
 312         {wxT("CORNFLOWER BLUE"), 66, 66, 111},
 313         {wxT("CYAN"), 0, 255, 255},
 314         {wxT("DARK GREY"), 47, 47, 47},   // ?
 315
 316         {wxT("DARK GREEN"), 47, 79, 47},
 317         {wxT("DARK OLIVE GREEN"), 79, 79, 47},
 318         {wxT("DARK ORCHID"), 153, 50, 204},
 319         {wxT("DARK SLATE BLUE"), 107, 35, 142},
 320         {wxT("DARK SLATE GREY"), 47, 79, 79},
 321         {wxT("DARK TURQUOISE"), 112, 147, 219},
 322         {wxT("DIM GREY"), 84, 84, 84},
 323         {wxT("FIREBRICK"), 142, 35, 35},
 324         {wxT("FOREST GREEN"), 35, 142, 35},
 325         {wxT("GOLD"), 204, 127, 50},
 326         {wxT("GOLDENROD"), 219, 219, 112},
 327         {wxT("GREY"), 128, 128, 128},
 328         {wxT("GREEN"), 0, 255, 0},
 329         {wxT("GREEN YELLOW"), 147, 219, 112},
 330         {wxT("INDIAN RED"), 79, 47, 47},
 331         {wxT("KHAKI"), 159, 159, 95},
 332         {wxT("LIGHT BLUE"), 191, 216, 216},
 333         {wxT("LIGHT GREY"), 192, 192, 192},
 334         {wxT("LIGHT STEEL BLUE"), 143, 143, 188},
 335         {wxT("LIME GREEN"), 50, 204, 50},
 336         {wxT("LIGHT MAGENTA"), 255, 0, 255},
 337         {wxT("MAGENTA"), 255, 0, 255},
 338         {wxT("MAROON"), 142, 35, 107},
 339         {wxT("MEDIUM AQUAMARINE"), 50, 204, 153},
 340         {wxT("MEDIUM GREY"), 100, 100, 100},
 341         {wxT("MEDIUM BLUE"), 50, 50, 204},
 342         {wxT("MEDIUM FOREST GREEN"), 107, 142, 35},
 343         {wxT("MEDIUM GOLDENROD"), 234, 234, 173},
 344         {wxT("MEDIUM ORCHID"), 147, 112, 219},
 345         {wxT("MEDIUM SEA GREEN"), 66, 111, 66},
 346         {wxT("MEDIUM SLATE BLUE"), 127, 0, 255},
 347         {wxT("MEDIUM SPRING GREEN"), 127, 255, 0},
 348         {wxT("MEDIUM TURQUOISE"), 112, 219, 219},
 349         {wxT("MEDIUM VIOLET RED"), 219, 112, 147},
 350         {wxT("MIDNIGHT BLUE"), 47, 47, 79},
 351         {wxT("NAVY"), 35, 35, 142},
 352         {wxT("ORANGE"), 204, 50, 50},
 353         {wxT("ORANGE RED"), 255, 0, 127},
 354         {wxT("ORCHID"), 219, 112, 219},
 355         {wxT("PALE GREEN"), 143, 188, 143},
 356         {wxT("PINK"), 255, 192, 203},
 357         {wxT("PLUM"), 234, 173, 234},
 358         {wxT("PURPLE"), 176, 0, 255},
 359         {wxT("RED"), 255, 0, 0},
 360         {wxT("SALMON"), 111, 66, 66},
 361         {wxT("SEA GREEN"), 35, 142, 107},
 362         {wxT("SIENNA"), 142, 107, 35},
 363         {wxT("SKY BLUE"), 50, 153, 204},
 364         {wxT("SLATE BLUE"), 0, 127, 255},
 365         {wxT("SPRING GREEN"), 0, 255, 127},
 366         {wxT("STEEL BLUE"), 35, 107, 142},
 367         {wxT("TAN"), 219, 147, 112},
 368         {wxT("THISTLE"), 216, 191, 216},
 369         {wxT("TURQUOISE"), 173, 234, 234},
 370         {wxT("VIOLET"), 79, 47, 79},
 371         {wxT("VIOLET RED"), 204, 50, 153},
 372         {wxT("WHEAT"), 216, 216, 191},
 373         {wxT("WHITE"), 255, 255, 255},
 374         {wxT("YELLOW"), 255, 255, 0},
 375         {wxT("YELLOW GREEN"), 153, 204, 50}
 376     };
 377
 378     size_t n;
 379
 380     for ( n = 0; n < WXSIZEOF(wxColourTable); n++ )
 381     {
 382         const wxColourDesc& cc = wxColourTable[n];
 383         (*m_map)[cc.name] = new wxColour(cc.r, cc.g, cc.b);
 384     }
 385
 386 #ifdef __WXPM__
 387     m_palTable = new long[n];
 388     for ( n = 0; n < WXSIZEOF(wxColourTable); n++ )
 389     {
 390         const wxColourDesc& cc = wxColourTable[n];
 391         m_palTable[n] = OS2RGB(cc.r,cc.g,cc.b);
 392     }
 393     m_nSize = n;
 394 #endif
 395 }
 396
 397 // ----------------------------------------------------------------------------
 398 // wxColourDatabase operations
 399 // ----------------------------------------------------------------------------
 400
 401 void wxColourDatabase::AddColour(const wxString& name, const wxColour& colour)
 402 {
 403     Initialize();
 404
 405     // canonicalize the colour names before using them as keys: they should be
 406     // in upper case
 407     wxString colName = name;
 408     colName.MakeUpper();
 409
 410     // ... and we also allow both grey/gray
 411     wxString colNameAlt = colName;
 412     if ( !colNameAlt.Replace(wxT("GRAY"), wxT("GREY")) )
 413     {
 414         // but in this case it is not necessary so avoid extra search below
 415         colNameAlt.clear();
 416     }
 417
 418     wxStringToColourHashMap::iterator it = m_map->find(colName);
 419     if ( it == m_map->end() && !colNameAlt.empty() )
 420         it = m_map->find(colNameAlt);
 421     if ( it != m_map->end() )
 422     {
 423         *(it->second) = colour;
 424     }
 425     else // new colour
 426     {
 427         (*m_map)[colName] = new wxColour(colour);
 428     }
 429 }
 430
 431 wxColour wxColourDatabase::Find(const wxString& colour) const
 432 {
 433     wxColourDatabase * const self = wxConstCast(this, wxColourDatabase);
 434     self->Initialize();
 435
 436     // make the comparaison case insensitive and also match both grey and gray
 437     wxString colName = colour;
 438     colName.MakeUpper();
 439     wxString colNameAlt = colName;
 440     if ( !colNameAlt.Replace(wxT("GRAY"), wxT("GREY")) )
 441         colNameAlt.clear();
 442
 443     wxStringToColourHashMap::iterator it = m_map->find(colName);
 444     if ( it == m_map->end() && !colNameAlt.empty() )
 445         it = m_map->find(colNameAlt);
 446     if ( it != m_map->end() )
 447         return *(it->second);
 448
 449     // we did not find any result in existing colours:
 450     // we won't use wxString -> wxColour conversion because the
 451     // wxColour::Set(const wxString &) function which does that conversion
 452     // internally uses this function (wxColourDatabase::Find) and we want
 453     // to avoid infinite recursion !
 454     return wxNullColour;
 455 }
 456
 457 wxString wxColourDatabase::FindName(const wxColour& colour) const
 458 {
 459     wxColourDatabase * const self = wxConstCast(this, wxColourDatabase);
 460     self->Initialize();
 461
 462     typedef wxStringToColourHashMap::iterator iterator;
 463
 464     for ( iterator it = m_map->begin(), en = m_map->end(); it != en; ++it )
 465     {
 466         if ( *(it->second) == colour )
 467             return it->first;
 468     }
 469
 470     return wxEmptyString;
 471 }
 472
 473 // ----------------------------------------------------------------------------
 474 // deprecated wxColourDatabase methods
 475 // ----------------------------------------------------------------------------
 476
 477 #if WXWIN_COMPATIBILITY_2_6
 478 wxColour *wxColourDatabase::FindColour(const wxString& name)
 479 {
 480     // This function is deprecated, use Find() instead.
 481     // Formerly this function sometimes would return a deletable pointer and
 482     // sometimes a non-deletable one (when returning a colour from the database).
 483     // Trying to delete the latter anyway results in problems, so probably
 484     // nobody ever freed the pointers. Currently it always returns a new
 485     // instance, which means there will be memory leaks.
 486     wxLogDebug(wxT("wxColourDataBase::FindColour():")
 487         wxT(" Please use wxColourDataBase::Find() instead"));
 488
 489     // using a static variable here is not the most elegant solution but unless
 490     // we want to make wxStringToColourHashMap public (i.e. move it to the
 491     // header) so that we could have a member function returning
 492     // wxStringToColourHashMap::iterator, there is really no good way to do it
 493     // otherwise
 494     //
 495     // and knowing that this function is going to disappear in the next release
 496     // anyhow I don't want to waste time on this
 497
 498     static wxColour s_col;
 499
 500     s_col = Find(name);
 501     if ( !s_col.IsOk() )
 502         return NULL;
 503
 504     return new wxColour(s_col);
 505 }
 506 #endif // WXWIN_COMPATIBILITY_2_6
 507
 508 // ============================================================================
 509 // stock objects
 510 // ============================================================================
 511
 512 static wxStockGDI gs_wxStockGDI_instance;
 513 wxStockGDI* wxStockGDI::ms_instance = &gs_wxStockGDI_instance;
 514 wxObject* wxStockGDI::ms_stockObject[ITEMCOUNT];
 515
 516 wxStockGDI::wxStockGDI()
 517 {
 518 }
 519
 520 wxStockGDI::~wxStockGDI()
 521 {
 522 }
 523
 524 void wxStockGDI::DeleteAll()
 525 {
 526     for (unsigned i = 0; i < ITEMCOUNT; i++)
 527     {
 528         wxDELETE(ms_stockObject[i]);
 529     }
 530 }
 531
 532 const wxBrush* wxStockGDI::GetBrush(Item item)
 533 {
 534     wxBrush* brush = static_cast<wxBrush*>(ms_stockObject[item]);
 535     if (brush == NULL)
 536     {
 537         switch (item)
 538         {
 539         case BRUSH_BLACK:
 540             brush = new wxBrush(*GetColour(COLOUR_BLACK), wxBRUSHSTYLE_SOLID);
 541             break;
 542         case BRUSH_BLUE:
 543             brush = new wxBrush(*GetColour(COLOUR_BLUE), wxBRUSHSTYLE_SOLID);
 544             break;
 545         case BRUSH_CYAN:
 546             brush = new wxBrush(*GetColour(COLOUR_CYAN), wxBRUSHSTYLE_SOLID);
 547             break;
 548         case BRUSH_GREEN:
 549             brush = new wxBrush(*GetColour(COLOUR_GREEN), wxBRUSHSTYLE_SOLID);
 550             break;
 551         case BRUSH_YELLOW:
 552             brush = new wxBrush(*GetColour(COLOUR_YELLOW), wxBRUSHSTYLE_SOLID);
 553             break;
 554         case BRUSH_GREY:
 555             brush = new wxBrush(wxColour(wxT("GREY")), wxBRUSHSTYLE_SOLID);
 556             break;
 557         case BRUSH_LIGHTGREY:
 558             brush = new wxBrush(*GetColour(COLOUR_LIGHTGREY), wxBRUSHSTYLE_SOLID);
 559             break;
 560         case BRUSH_MEDIUMGREY:
 561             brush = new wxBrush(wxColour(wxT("MEDIUM GREY")), wxBRUSHSTYLE_SOLID);
 562             break;
 563         case BRUSH_RED:
 564             brush = new wxBrush(*GetColour(COLOUR_RED), wxBRUSHSTYLE_SOLID);
 565             break;
 566         case BRUSH_TRANSPARENT:
 567             brush = new wxBrush(*GetColour(COLOUR_BLACK), wxBRUSHSTYLE_TRANSPARENT);
 568             break;
 569         case BRUSH_WHITE:
 570             brush = new wxBrush(*GetColour(COLOUR_WHITE), wxBRUSHSTYLE_SOLID);
 571             break;
 572         default:
 573             wxFAIL;
 574         }
 575         ms_stockObject[item] = brush;
 576     }
 577     return brush;
 578 }
 579
 580 const wxColour* wxStockGDI::GetColour(Item item)
 581 {
 582     wxColour* colour = static_cast<wxColour*>(ms_stockObject[item]);
 583     if (colour == NULL)
 584     {
 585         switch (item)
 586         {
 587         case COLOUR_BLACK:
 588             colour = new wxColour(0, 0, 0);
 589             break;
 590         case COLOUR_BLUE:
 591             colour = new wxColour(0, 0, 255);
 592             break;
 593         case COLOUR_CYAN:
 594             colour = new wxColour(wxT("CYAN"));
 595             break;
 596         case COLOUR_GREEN:
 597             colour = new wxColour(0, 255, 0);
 598             break;
 599         case COLOUR_YELLOW:
 600             colour = new wxColour(255, 255, 0);
 601             break;
 602         case COLOUR_LIGHTGREY:
 603             colour = new wxColour(wxT("LIGHT GREY"));
 604             break;
 605         case COLOUR_RED:
 606             colour = new wxColour(255, 0, 0);
 607             break;
 608         case COLOUR_WHITE:
 609             colour = new wxColour(255, 255, 255);
 610             break;
 611         default:
 612             wxFAIL;
 613         }
 614         ms_stockObject[item] = colour;
 615     }
 616     return colour;
 617 }
 618
 619 const wxCursor* wxStockGDI::GetCursor(Item item)
 620 {
 621     wxCursor* cursor = static_cast<wxCursor*>(ms_stockObject[item]);
 622     if (cursor == NULL)
 623     {
 624         switch (item)
 625         {
 626         case CURSOR_CROSS:
 627             cursor = new wxCursor(wxCURSOR_CROSS);
 628             break;
 629         case CURSOR_HOURGLASS:
 630             cursor = new wxCursor(wxCURSOR_WAIT);
 631             break;
 632         case CURSOR_STANDARD:
 633             cursor = new wxCursor(wxCURSOR_ARROW);
 634             break;
 635         default:
 636             wxFAIL;
 637         }
 638         ms_stockObject[item] = cursor;
 639     }
 640     return cursor;
 641 }
 642
 643 const wxFont* wxStockGDI::GetFont(Item item)
 644 {
 645     wxFont* font = static_cast<wxFont*>(ms_stockObject[item]);
 646     if (font == NULL)
 647     {
 648         switch (item)
 649         {
 650         case FONT_ITALIC:
 651             font = new wxFont(GetFont(FONT_NORMAL)->GetPointSize(), wxROMAN, wxITALIC, wxNORMAL);
 652             break;
 653         case FONT_NORMAL:
 654             font = new wxFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 655             break;
 656         case FONT_SMALL:
 657             font = new wxFont(GetFont(FONT_NORMAL)->GetPointSize()
 658                     // Using the font 2 points smaller than the normal one
 659                     // results in font so small as to be unreadable under MSW.
 660                     // We might want to actually use -1 under the other
 661                     // platforms too but for now be conservative and keep -2
 662                     // there for compatibility with the old behaviour as the
 663                     // small font seems to be readable enough there as it is.
 664 #ifdef __WXMSW__
 665                     - 1,
 666 #else
 667                     - 2,
 668 #endif
 669                     wxSWISS, wxNORMAL, wxNORMAL);
 670             break;
 671         case FONT_SWISS:
 672             font = new wxFont(GetFont(FONT_NORMAL)->GetPointSize(), wxSWISS, wxNORMAL, wxNORMAL);
 673             break;
 674         default:
 675             wxFAIL;
 676         }
 677         ms_stockObject[item] = font;
 678     }
 679     return font;
 680 }
 681
 682 const wxPen* wxStockGDI::GetPen(Item item)
 683 {
 684     wxPen* pen = static_cast<wxPen*>(ms_stockObject[item]);
 685     if (pen == NULL)
 686     {
 687         switch (item)
 688         {
 689         case PEN_BLACK:
 690             pen = new wxPen(*GetColour(COLOUR_BLACK), 1, wxPENSTYLE_SOLID);
 691             break;
 692         case PEN_BLACKDASHED:
 693             pen = new wxPen(*GetColour(COLOUR_BLACK), 1, wxPENSTYLE_SHORT_DASH);
 694             break;
 695         case PEN_BLUE:
 696             pen = new wxPen(*GetColour(COLOUR_BLUE), 1, wxPENSTYLE_SOLID);
 697             break;
 698         case PEN_CYAN:
 699             pen = new wxPen(*GetColour(COLOUR_CYAN), 1, wxPENSTYLE_SOLID);
 700             break;
 701         case PEN_GREEN:
 702             pen = new wxPen(*GetColour(COLOUR_GREEN), 1, wxPENSTYLE_SOLID);
 703             break;
 704         case PEN_YELLOW:
 705             pen = new wxPen(*GetColour(COLOUR_YELLOW), 1, wxPENSTYLE_SOLID);
 706             break;
 707         case PEN_GREY:
 708             pen = new wxPen(wxColour(wxT("GREY")), 1, wxPENSTYLE_SOLID);
 709             break;
 710         case PEN_LIGHTGREY:
 711             pen = new wxPen(*GetColour(COLOUR_LIGHTGREY), 1, wxPENSTYLE_SOLID);
 712             break;
 713         case PEN_MEDIUMGREY:
 714             pen = new wxPen(wxColour(wxT("MEDIUM GREY")), 1, wxPENSTYLE_SOLID);
 715             break;
 716         case PEN_RED:
 717             pen = new wxPen(*GetColour(COLOUR_RED), 1, wxPENSTYLE_SOLID);
 718             break;
 719         case PEN_TRANSPARENT:
 720             pen = new wxPen(*GetColour(COLOUR_BLACK), 1, wxPENSTYLE_TRANSPARENT);
 721             break;
 722         case PEN_WHITE:
 723             pen = new wxPen(*GetColour(COLOUR_WHITE), 1, wxPENSTYLE_SOLID);
 724             break;
 725         default:
 726             wxFAIL;
 727         }
 728         ms_stockObject[item] = pen;
 729     }
 730     return pen;
 731 }
 732
 733 void wxInitializeStockLists()
 734 {
 735     wxTheColourDatabase = new wxColourDatabase;
 736
 737     wxTheBrushList = new wxBrushList;
 738     wxThePenList = new wxPenList;
 739     wxTheFontList = new wxFontList;
 740 }
 741
 742 void wxDeleteStockLists()
 743 {
 744     wxDELETE(wxTheBrushList);
 745     wxDELETE(wxThePenList);
 746     wxDELETE(wxTheFontList);
 747
 748     // wxTheColourDatabase is cleaned up by wxAppBase::CleanUp()
 749 }
 750
 751 // ============================================================================
 752 // wxTheXXXList stuff (semi-obsolete)
 753 // ============================================================================
 754
 755 wxGDIObjListBase::wxGDIObjListBase()
 756 {
 757 }
 758
 759 wxGDIObjListBase::~wxGDIObjListBase()
 760 {
 761     for (wxList::compatibility_iterator node = list.GetFirst(); node; node = node->GetNext())
 762     {
 763         delete static_cast<wxObject*>(node->GetData());
 764     }
 765 }
 766
 767 wxPen *wxPenList::FindOrCreatePen (const wxColour& colour, int width, wxPenStyle style)
 768 {
 769     for ( wxList::compatibility_iterator node = list.GetFirst();
 770           node;
 771           node = node->GetNext() )
 772     {
 773         wxPen * const pen = (wxPen *) node->GetData();
 774         if ( pen->GetWidth () == width &&
 775                 pen->GetStyle () == style &&
 776                     pen->GetColour() == colour )
 777             return pen;
 778     }
 779
 780     wxPen* pen = NULL;
 781     wxPen penTmp(colour, width, style);
 782     if (penTmp.IsOk())
 783     {
 784         pen = new wxPen(penTmp);
 785         list.Append(pen);
 786     }
 787
 788     return pen;
 789 }
 790
 791 wxBrush *wxBrushList::FindOrCreateBrush (const wxColour& colour, wxBrushStyle style)
 792 {
 793     for ( wxList::compatibility_iterator node = list.GetFirst();
 794           node;
 795           node = node->GetNext() )
 796     {
 797         wxBrush * const brush = (wxBrush *) node->GetData ();
 798         if ( brush->GetStyle() == style && brush->GetColour() == colour )
 799             return brush;
 800     }
 801
 802     wxBrush* brush = NULL;
 803     wxBrush brushTmp(colour, style);
 804     if (brushTmp.IsOk())
 805     {
 806         brush = new wxBrush(brushTmp);
 807         list.Append(brush);
 808     }
 809
 810     return brush;
 811 }
 812
 813 wxFont *wxFontList::FindOrCreateFont(int pointSize,
 814                                      wxFontFamily family,
 815                                      wxFontStyle style,
 816                                      wxFontWeight weight,
 817                                      bool underline,
 818                                      const wxString& facename,
 819                                      wxFontEncoding encoding)
 820 {
 821     // In all ports but wxOSX, the effective family of a font created using
 822     // wxFONTFAMILY_DEFAULT is wxFONTFAMILY_SWISS so this is what we need to
 823     // use for comparison.
 824     //
 825     // In wxOSX the original wxFONTFAMILY_DEFAULT seems to be kept and it uses
 826     // a different font than wxFONTFAMILY_SWISS anyhow so we just preserve it.
 827 #ifndef __WXOSX__
 828     if ( family == wxFONTFAMILY_DEFAULT )
 829         family = wxFONTFAMILY_SWISS;
 830 #endif // !__WXOSX__
 831
 832     wxFont *font;
 833     wxList::compatibility_iterator node;
 834     for (node = list.GetFirst(); node; node = node->GetNext())
 835     {
 836         font = (wxFont *)node->GetData();
 837         if (
 838              font->GetPointSize () == pointSize &&
 839              font->GetStyle () == style &&
 840              font->GetWeight () == weight &&
 841              font->GetUnderlined () == underline )
 842         {
 843             bool same = font->GetFamily() == family;
 844
 845             // empty facename matches anything at all: this is bad because
 846             // depending on which fonts are already created, we might get back
 847             // a different font if we create it with empty facename, but it is
 848             // still better than never matching anything in the cache at all
 849             // in this case
 850             if ( same && !facename.empty() )
 851             {
 852                 const wxString& fontFace = font->GetFaceName();
 853
 854                 // empty facename matches everything
 855                 same = !fontFace || fontFace == facename;
 856             }
 857
 858             if ( same && (encoding != wxFONTENCODING_DEFAULT) )
 859             {
 860                 // have to match the encoding too
 861                 same = font->GetEncoding() == encoding;
 862             }
 863
 864             if ( same )
 865             {
 866                 return font;
 867             }
 868         }
 869     }
 870
 871     // font not found, create the new one
 872     font = NULL;
 873     wxFont fontTmp(pointSize, family, style, weight, underline, facename, encoding);
 874     if (fontTmp.IsOk())
 875     {
 876         font = new wxFont(fontTmp);
 877         list.Append(font);
 878     }
 879
 880     return font;
 881 }
 882
 883 #if WXWIN_COMPATIBILITY_2_6
 884 void wxBrushList::AddBrush(wxBrush*) { }
 885 void wxBrushList::RemoveBrush(wxBrush*) { }
 886 void wxFontList::AddFont(wxFont*) { }
 887 void wxFontList::RemoveFont(wxFont*) { }
 888 void wxPenList::AddPen(wxPen*) { }
 889 void wxPenList::RemovePen(wxPen*) { }
 890 #endif
 891
 892 wxSize wxGetDisplaySize()
 893 {
 894     int x, y;
 895     wxDisplaySize(& x, & y);
 896     return wxSize(x, y);
 897 }
 898
 899 wxRect wxGetClientDisplayRect()
 900 {
 901     int x, y, width, height;
 902     wxClientDisplayRect(&x, &y, &width, &height);  // call plat-specific version
 903     return wxRect(x, y, width, height);
 904 }
 905
 906 wxSize wxGetDisplaySizeMM()
 907 {
 908     int x, y;
 909     wxDisplaySizeMM(& x, & y);
 910     return wxSize(x, y);
 911 }
 912
 913 wxSize wxGetDisplayPPI()
 914 {
 915     const wxSize pixels = wxGetDisplaySize();
 916     const wxSize mm = wxGetDisplaySizeMM();
 917
 918     return wxSize((int)((pixels.x * inches2mm) / mm.x),
 919                   (int)((pixels.y * inches2mm) / mm.y));
 920 }
 921
 922 wxResourceCache::~wxResourceCache ()
 923 {
 924     wxList::compatibility_iterator node = GetFirst ();
 925     while (node) {
 926         wxObject *item = (wxObject *)node->GetData();
 927         delete item;
 928
 929         node = node->GetNext ();
 930     }
 931 }