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         delete ms_stockObject[i];
 530         ms_stockObject[i] = NULL;
 531     }
 532 }
 533
 534 const wxBrush* wxStockGDI::GetBrush(Item item)
 535 {
 536     wxBrush* brush = static_cast<wxBrush*>(ms_stockObject[item]);
 537     if (brush == NULL)
 538     {
 539         switch (item)
 540         {
 541         case BRUSH_BLACK:
 542             brush = new wxBrush(*GetColour(COLOUR_BLACK), wxBRUSHSTYLE_SOLID);
 543             break;
 544         case BRUSH_BLUE:
 545             brush = new wxBrush(*GetColour(COLOUR_BLUE), wxBRUSHSTYLE_SOLID);
 546             break;
 547         case BRUSH_CYAN:
 548             brush = new wxBrush(*GetColour(COLOUR_CYAN), wxBRUSHSTYLE_SOLID);
 549             break;
 550         case BRUSH_GREEN:
 551             brush = new wxBrush(*GetColour(COLOUR_GREEN), wxBRUSHSTYLE_SOLID);
 552             break;
 553         case BRUSH_YELLOW:
 554             brush = new wxBrush(*GetColour(COLOUR_YELLOW), wxBRUSHSTYLE_SOLID);
 555             break;
 556         case BRUSH_GREY:
 557             brush = new wxBrush(wxColour(wxT("GREY")), wxBRUSHSTYLE_SOLID);
 558             break;
 559         case BRUSH_LIGHTGREY:
 560             brush = new wxBrush(*GetColour(COLOUR_LIGHTGREY), wxBRUSHSTYLE_SOLID);
 561             break;
 562         case BRUSH_MEDIUMGREY:
 563             brush = new wxBrush(wxColour(wxT("MEDIUM GREY")), wxBRUSHSTYLE_SOLID);
 564             break;
 565         case BRUSH_RED:
 566             brush = new wxBrush(*GetColour(COLOUR_RED), wxBRUSHSTYLE_SOLID);
 567             break;
 568         case BRUSH_TRANSPARENT:
 569             brush = new wxBrush(*GetColour(COLOUR_BLACK), wxBRUSHSTYLE_TRANSPARENT);
 570             break;
 571         case BRUSH_WHITE:
 572             brush = new wxBrush(*GetColour(COLOUR_WHITE), wxBRUSHSTYLE_SOLID);
 573             break;
 574         default:
 575             wxFAIL;
 576         }
 577         ms_stockObject[item] = brush;
 578     }
 579     return brush;
 580 }
 581
 582 const wxColour* wxStockGDI::GetColour(Item item)
 583 {
 584     wxColour* colour = static_cast<wxColour*>(ms_stockObject[item]);
 585     if (colour == NULL)
 586     {
 587         switch (item)
 588         {
 589         case COLOUR_BLACK:
 590             colour = new wxColour(0, 0, 0);
 591             break;
 592         case COLOUR_BLUE:
 593             colour = new wxColour(0, 0, 255);
 594             break;
 595         case COLOUR_CYAN:
 596             colour = new wxColour(wxT("CYAN"));
 597             break;
 598         case COLOUR_GREEN:
 599             colour = new wxColour(0, 255, 0);
 600             break;
 601         case COLOUR_YELLOW:
 602             colour = new wxColour(255, 255, 0);
 603             break;
 604         case COLOUR_LIGHTGREY:
 605             colour = new wxColour(wxT("LIGHT GREY"));
 606             break;
 607         case COLOUR_RED:
 608             colour = new wxColour(255, 0, 0);
 609             break;
 610         case COLOUR_WHITE:
 611             colour = new wxColour(255, 255, 255);
 612             break;
 613         default:
 614             wxFAIL;
 615         }
 616         ms_stockObject[item] = colour;
 617     }
 618     return colour;
 619 }
 620
 621 const wxCursor* wxStockGDI::GetCursor(Item item)
 622 {
 623     wxCursor* cursor = static_cast<wxCursor*>(ms_stockObject[item]);
 624     if (cursor == NULL)
 625     {
 626         switch (item)
 627         {
 628         case CURSOR_CROSS:
 629             cursor = new wxCursor(wxCURSOR_CROSS);
 630             break;
 631         case CURSOR_HOURGLASS:
 632             cursor = new wxCursor(wxCURSOR_WAIT);
 633             break;
 634         case CURSOR_STANDARD:
 635             cursor = new wxCursor(wxCURSOR_ARROW);
 636             break;
 637         default:
 638             wxFAIL;
 639         }
 640         ms_stockObject[item] = cursor;
 641     }
 642     return cursor;
 643 }
 644
 645 const wxFont* wxStockGDI::GetFont(Item item)
 646 {
 647     wxFont* font = static_cast<wxFont*>(ms_stockObject[item]);
 648     if (font == NULL)
 649     {
 650         switch (item)
 651         {
 652         case FONT_ITALIC:
 653             font = new wxFont(GetFont(FONT_NORMAL)->GetPointSize(), wxROMAN, wxITALIC, wxNORMAL);
 654             break;
 655         case FONT_NORMAL:
 656             font = new wxFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 657             break;
 658         case FONT_SMALL:
 659             font = new wxFont(GetFont(FONT_NORMAL)->GetPointSize() - 2, wxSWISS, wxNORMAL, wxNORMAL);
 660             break;
 661         case FONT_SWISS:
 662             font = new wxFont(GetFont(FONT_NORMAL)->GetPointSize(), wxSWISS, wxNORMAL, wxNORMAL);
 663             break;
 664         default:
 665             wxFAIL;
 666         }
 667         ms_stockObject[item] = font;
 668     }
 669     return font;
 670 }
 671
 672 const wxPen* wxStockGDI::GetPen(Item item)
 673 {
 674     wxPen* pen = static_cast<wxPen*>(ms_stockObject[item]);
 675     if (pen == NULL)
 676     {
 677         switch (item)
 678         {
 679         case PEN_BLACK:
 680             pen = new wxPen(*GetColour(COLOUR_BLACK), 1, wxPENSTYLE_SOLID);
 681             break;
 682         case PEN_BLACKDASHED:
 683             pen = new wxPen(*GetColour(COLOUR_BLACK), 1, wxPENSTYLE_SHORT_DASH);
 684             break;
 685         case PEN_BLUE:
 686             pen = new wxPen(*GetColour(COLOUR_BLUE), 1, wxPENSTYLE_SOLID);
 687             break;
 688         case PEN_CYAN:
 689             pen = new wxPen(*GetColour(COLOUR_CYAN), 1, wxPENSTYLE_SOLID);
 690             break;
 691         case PEN_GREEN:
 692             pen = new wxPen(*GetColour(COLOUR_GREEN), 1, wxPENSTYLE_SOLID);
 693             break;
 694         case PEN_YELLOW:
 695             pen = new wxPen(*GetColour(COLOUR_YELLOW), 1, wxPENSTYLE_SOLID);
 696             break;
 697         case PEN_GREY:
 698             pen = new wxPen(wxColour(wxT("GREY")), 1, wxPENSTYLE_SOLID);
 699             break;
 700         case PEN_LIGHTGREY:
 701             pen = new wxPen(*GetColour(COLOUR_LIGHTGREY), 1, wxPENSTYLE_SOLID);
 702             break;
 703         case PEN_MEDIUMGREY:
 704             pen = new wxPen(wxColour(wxT("MEDIUM GREY")), 1, wxPENSTYLE_SOLID);
 705             break;
 706         case PEN_RED:
 707             pen = new wxPen(*GetColour(COLOUR_RED), 1, wxPENSTYLE_SOLID);
 708             break;
 709         case PEN_TRANSPARENT:
 710             pen = new wxPen(*GetColour(COLOUR_BLACK), 1, wxPENSTYLE_TRANSPARENT);
 711             break;
 712         case PEN_WHITE:
 713             pen = new wxPen(*GetColour(COLOUR_WHITE), 1, wxPENSTYLE_SOLID);
 714             break;
 715         default:
 716             wxFAIL;
 717         }
 718         ms_stockObject[item] = pen;
 719     }
 720     return pen;
 721 }
 722
 723 void wxInitializeStockLists()
 724 {
 725     wxTheColourDatabase = new wxColourDatabase;
 726
 727     wxTheBrushList = new wxBrushList;
 728     wxThePenList = new wxPenList;
 729     wxTheFontList = new wxFontList;
 730 }
 731
 732 void wxDeleteStockLists()
 733 {
 734     wxDELETE(wxTheBrushList);
 735     wxDELETE(wxThePenList);
 736     wxDELETE(wxTheFontList);
 737
 738     // wxTheColourDatabase is cleaned up by wxAppBase::CleanUp()
 739 }
 740
 741 // ============================================================================
 742 // wxTheXXXList stuff (semi-obsolete)
 743 // ============================================================================
 744
 745 wxGDIObjListBase::wxGDIObjListBase()
 746 {
 747 }
 748
 749 wxGDIObjListBase::~wxGDIObjListBase()
 750 {
 751     for (wxList::compatibility_iterator node = list.GetFirst(); node; node = node->GetNext())
 752     {
 753         delete static_cast<wxObject*>(node->GetData());
 754     }
 755 }
 756
 757 wxPen *wxPenList::FindOrCreatePen (const wxColour& colour, int width, wxPenStyle style)
 758 {
 759     for ( wxList::compatibility_iterator node = list.GetFirst();
 760           node;
 761           node = node->GetNext() )
 762     {
 763         wxPen * const pen = (wxPen *) node->GetData();
 764         if ( pen->GetWidth () == width &&
 765                 pen->GetStyle () == style &&
 766                     pen->GetColour() == colour )
 767             return pen;
 768     }
 769
 770     wxPen* pen = NULL;
 771     wxPen penTmp(colour, width, style);
 772     if (penTmp.Ok())
 773     {
 774         pen = new wxPen(penTmp);
 775         list.Append(pen);
 776     }
 777
 778     return pen;
 779 }
 780
 781 wxBrush *wxBrushList::FindOrCreateBrush (const wxColour& colour, wxBrushStyle style)
 782 {
 783     for ( wxList::compatibility_iterator node = list.GetFirst();
 784           node;
 785           node = node->GetNext() )
 786     {
 787         wxBrush * const brush = (wxBrush *) node->GetData ();
 788         if ( brush->GetStyle() == style && brush->GetColour() == colour )
 789             return brush;
 790     }
 791
 792     wxBrush* brush = NULL;
 793     wxBrush brushTmp(colour, style);
 794     if (brushTmp.Ok())
 795     {
 796         brush = new wxBrush(brushTmp);
 797         list.Append(brush);
 798     }
 799
 800     return brush;
 801 }
 802
 803 wxFont *wxFontList::FindOrCreateFont(int pointSize,
 804                                      wxFontFamily family,
 805                                      wxFontStyle style,
 806                                      wxFontWeight weight,
 807                                      bool underline,
 808                                      const wxString& facename,
 809                                      wxFontEncoding encoding)
 810 {
 811     wxFont *font;
 812     wxList::compatibility_iterator node;
 813     for (node = list.GetFirst(); node; node = node->GetNext())
 814     {
 815         font = (wxFont *)node->GetData();
 816         if (
 817              font->GetPointSize () == pointSize &&
 818              font->GetStyle () == style &&
 819              font->GetWeight () == weight &&
 820              font->GetUnderlined () == underline )
 821         {
 822             wxFontFamily fontFamily = (wxFontFamily)font->GetFamily();
 823
 824 #if defined(__WXGTK__)
 825             // under GTK the default family is wxSWISS, so looking for a font
 826             // with wxDEFAULT family should return a wxSWISS one instead of
 827             // creating a new one
 828             bool same = (fontFamily == family) ||
 829                         (fontFamily == wxFONTFAMILY_SWISS && family == wxFONTFAMILY_DEFAULT);
 830 #else // !GTK
 831             // VZ: but why elsewhere do we require an exact match? mystery...
 832             bool same = fontFamily == family;
 833 #endif // GTK/!GTK
 834
 835             // empty facename matches anything at all: this is bad because
 836             // depending on which fonts are already created, we might get back
 837             // a different font if we create it with empty facename, but it is
 838             // still better than never matching anything in the cache at all
 839             // in this case
 840             if ( same && !facename.empty() )
 841             {
 842                 const wxString& fontFace = font->GetFaceName();
 843
 844                 // empty facename matches everything
 845                 same = !fontFace || fontFace == facename;
 846             }
 847
 848             if ( same && (encoding != wxFONTENCODING_DEFAULT) )
 849             {
 850                 // have to match the encoding too
 851                 same = font->GetEncoding() == encoding;
 852             }
 853
 854             if ( same )
 855             {
 856                 return font;
 857             }
 858         }
 859     }
 860
 861     // font not found, create the new one
 862     font = NULL;
 863     wxFont fontTmp(pointSize, family, style, weight, underline, facename, encoding);
 864     if (fontTmp.Ok())
 865     {
 866         font = new wxFont(fontTmp);
 867         list.Append(font);
 868     }
 869
 870     return font;
 871 }
 872
 873 #if WXWIN_COMPATIBILITY_2_6
 874 void wxBrushList::AddBrush(wxBrush*) { }
 875 void wxBrushList::RemoveBrush(wxBrush*) { }
 876 void wxFontList::AddFont(wxFont*) { }
 877 void wxFontList::RemoveFont(wxFont*) { }
 878 void wxPenList::AddPen(wxPen*) { }
 879 void wxPenList::RemovePen(wxPen*) { }
 880 #endif
 881
 882 wxSize wxGetDisplaySize()
 883 {
 884     int x, y;
 885     wxDisplaySize(& x, & y);
 886     return wxSize(x, y);
 887 }
 888
 889 wxRect wxGetClientDisplayRect()
 890 {
 891     int x, y, width, height;
 892     wxClientDisplayRect(&x, &y, &width, &height);  // call plat-specific version
 893     return wxRect(x, y, width, height);
 894 }
 895
 896 wxSize wxGetDisplaySizeMM()
 897 {
 898     int x, y;
 899     wxDisplaySizeMM(& x, & y);
 900     return wxSize(x, y);
 901 }
 902
 903 wxSize wxGetDisplayPPI()
 904 {
 905     const wxSize pixels = wxGetDisplaySize();
 906     const wxSize mm = wxGetDisplaySizeMM();
 907
 908     return wxSize((int)((pixels.x * inches2mm) / mm.x),
 909                   (int)((pixels.y * inches2mm) / mm.y));
 910 }
 911
 912 wxResourceCache::~wxResourceCache ()
 913 {
 914     wxList::compatibility_iterator node = GetFirst ();
 915     while (node) {
 916         wxObject *item = (wxObject *)node->GetData();
 917         delete item;
 918
 919         node = node->GetNext ();
 920     }
 921 }