src/common/gdicmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        gdicmn.cpp
   3 // Purpose:     Common GDI classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "gdicmn.h"
  14 #endif
  15
  16 #ifdef __VMS
  17 #define XtDisplay XTDISPLAY
  18 #endif
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24 #pragma hdrstop
  25 #endif
  26
  27 #include "wx/event.h"
  28 #include "wx/gdicmn.h"
  29 #include "wx/brush.h"
  30 #include "wx/pen.h"
  31 #include "wx/bitmap.h"
  32 #include "wx/icon.h"
  33 #include "wx/cursor.h"
  34 #include "wx/font.h"
  35 #include "wx/palette.h"
  36 #include "wx/app.h"
  37 #include "wx/dc.h"
  38 #include "wx/utils.h"
  39 #include "wx/settings.h"
  40 #include "wx/hashmap.h"
  41
  42 #include "wx/log.h"
  43 #include <string.h>
  44
  45 #ifdef __WXMSW__
  46 #include "wx/msw/wrapwin.h"
  47 #endif
  48
  49 #ifdef __WXMOTIF__
  50 #ifdef __VMS__
  51 #pragma message disable nosimpint
  52 #endif
  53 #include <Xm/Xm.h>
  54 #ifdef __VMS__
  55 #pragma message enable nosimpint
  56 #endif
  57 #endif
  58
  59 #ifdef __WXX11__
  60 #include "X11/Xlib.h"
  61 #endif
  62
  63 #ifdef __WXMAC__
  64 #include "wx/mac/private.h"
  65 #include "wx/mac/uma.h"
  66 #endif
  67
  68 #if wxUSE_EXTENDED_RTTI
  69
  70 // wxPoint
  71
  72 template<> void wxStringReadValue(const wxString &s , wxPoint &data )
  73 {
  74     wxSscanf(s, wxT("%d,%d"), &data.x , &data.y ) ;
  75 }
  76
  77 template<> void wxStringWriteValue(wxString &s , const wxPoint &data )
  78 {
  79     s = wxString::Format(wxT("%d,%d"), data.x , data.y ) ;
  80 }
  81
  82 wxCUSTOM_TYPE_INFO(wxPoint, wxToStringConverter<wxPoint> , wxFromStringConverter<wxPoint>)
  83
  84 template<> void wxStringReadValue(const wxString &s , wxSize &data )
  85 {
  86     wxSscanf(s, wxT("%d,%d"), &data.x , &data.y ) ;
  87 }
  88
  89 template<> void wxStringWriteValue(wxString &s , const wxSize &data )
  90 {
  91     s = wxString::Format(wxT("%d,%d"), data.x , data.y ) ;
  92 }
  93
  94 wxCUSTOM_TYPE_INFO(wxSize, wxToStringConverter<wxSize> , wxFromStringConverter<wxSize>)
  95
  96 #endif
  97
  98 IMPLEMENT_ABSTRACT_CLASS(wxDCBase, wxObject)
  99
 100 wxRect::wxRect(const wxPoint& point1, const wxPoint& point2)
 101 {
 102     x = point1.x;
 103     y = point1.y;
 104     width = point2.x - point1.x;
 105     height = point2.y - point1.y;
 106
 107     if (width < 0)
 108     {
 109         width = -width;
 110         x = point2.x;
 111     }
 112     width++;
 113
 114     if (height < 0)
 115     {
 116         height = -height;
 117         y = point2.y;
 118     }
 119     height++;
 120 }
 121
 122 wxRect::wxRect(const wxPoint& point, const wxSize& size)
 123 {
 124     x = point.x; y = point.y;
 125     width = size.x; height = size.y;
 126 }
 127
 128 bool wxRect::operator==(const wxRect& rect) const
 129 {
 130     return ((x == rect.x) &&
 131             (y == rect.y) &&
 132             (width == rect.width) &&
 133             (height == rect.height));
 134 }
 135
 136 wxRect& wxRect::operator += (const wxRect& rect)
 137 {
 138     *this = (*this + rect);
 139     return ( *this ) ;
 140 }
 141
 142 wxRect wxRect::operator + (const wxRect& rect) const
 143 {
 144     int x1 = wxMin(this->x, rect.x);
 145     int y1 = wxMin(this->y, rect.y);
 146     int y2 = wxMax(y+height, rect.height+rect.y);
 147     int x2 = wxMax(x+width, rect.width+rect.x);
 148     return wxRect(x1, y1, x2-x1, y2-y1);
 149 }
 150
 151 wxRect& wxRect::Inflate(wxCoord dx, wxCoord dy)
 152 {
 153     x -= dx;
 154     y -= dy;
 155     width += 2*dx;
 156     height += 2*dy;
 157
 158     // check that we didn't make the rectangle invalid by accident (you almost
 159     // never want to have negative coords and never want negative size)
 160     if ( x < 0 )
 161         x = 0;
 162     if ( y < 0 )
 163         y = 0;
 164
 165     // what else can we do?
 166     if ( width < 0 )
 167         width = 0;
 168     if ( height < 0 )
 169         height = 0;
 170
 171     return *this;
 172 }
 173
 174 bool wxRect::Inside(int cx, int cy) const
 175 {
 176     return ( (cx >= x) && (cy >= y)
 177           && ((cy - y) < height)
 178           && ((cx - x) < width)
 179           );
 180 }
 181
 182 wxRect& wxRect::Intersect(const wxRect& rect)
 183 {
 184     int x2 = GetRight(),
 185         y2 = GetBottom();
 186
 187     if ( x < rect.x )
 188         x = rect.x;
 189     if ( y < rect.y )
 190         y = rect.y;
 191     if ( x2 > rect.GetRight() )
 192         x2 = rect.GetRight();
 193     if ( y2 > rect.GetBottom() )
 194         y2 = rect.GetBottom();
 195
 196     width = x2 - x + 1;
 197     height = y2 - y + 1;
 198
 199     if ( width <= 0 || height <= 0 )
 200     {
 201         width =
 202         height = 0;
 203     }
 204
 205     return *this;
 206 }
 207
 208 bool wxRect::Intersects(const wxRect& rect) const
 209 {
 210     wxRect r = Intersect(rect);
 211
 212     // if there is no intersection, both width and height are 0
 213     return r.width != 0;
 214 }
 215
 216 // ============================================================================
 217 // wxColourDatabase
 218 // ============================================================================
 219
 220 // ----------------------------------------------------------------------------
 221 // wxColourDatabase ctor/dtor
 222 // ----------------------------------------------------------------------------
 223
 224 wxColourDatabase::wxColourDatabase ()
 225 {
 226     // will be created on demand in Initialize()
 227     m_map = NULL;
 228 }
 229
 230 wxColourDatabase::~wxColourDatabase ()
 231 {
 232     if ( m_map )
 233     {
 234         WX_CLEAR_HASH_MAP(wxStringToColourHashMap, *m_map);
 235
 236         delete m_map;
 237     }
 238
 239 #ifdef __WXPM__
 240     delete [] m_palTable;
 241 #endif
 242 }
 243
 244 // Colour database stuff
 245 void wxColourDatabase::Initialize()
 246 {
 247     if ( m_map )
 248     {
 249         // already initialized
 250         return;
 251     }
 252
 253     m_map = new wxStringToColourHashMap;
 254
 255     static const struct wxColourDesc
 256     {
 257         const wxChar *name;
 258         unsigned char r,g,b;
 259     }
 260     wxColourTable[] =
 261     {
 262         {wxT("AQUAMARINE"),112, 219, 147},
 263         {wxT("BLACK"),0, 0, 0},
 264         {wxT("BLUE"), 0, 0, 255},
 265         {wxT("BLUE VIOLET"), 159, 95, 159},
 266         {wxT("BROWN"), 165, 42, 42},
 267         {wxT("CADET BLUE"), 95, 159, 159},
 268         {wxT("CORAL"), 255, 127, 0},
 269         {wxT("CORNFLOWER BLUE"), 66, 66, 111},
 270         {wxT("CYAN"), 0, 255, 255},
 271         {wxT("DARK GREY"), 47, 47, 47},   // ?
 272
 273         {wxT("DARK GREEN"), 47, 79, 47},
 274         {wxT("DARK OLIVE GREEN"), 79, 79, 47},
 275         {wxT("DARK ORCHID"), 153, 50, 204},
 276         {wxT("DARK SLATE BLUE"), 107, 35, 142},
 277         {wxT("DARK SLATE GREY"), 47, 79, 79},
 278         {wxT("DARK TURQUOISE"), 112, 147, 219},
 279         {wxT("DIM GREY"), 84, 84, 84},
 280         {wxT("FIREBRICK"), 142, 35, 35},
 281         {wxT("FOREST GREEN"), 35, 142, 35},
 282         {wxT("GOLD"), 204, 127, 50},
 283         {wxT("GOLDENROD"), 219, 219, 112},
 284         {wxT("GREY"), 128, 128, 128},
 285         {wxT("GREEN"), 0, 255, 0},
 286         {wxT("GREEN YELLOW"), 147, 219, 112},
 287         {wxT("INDIAN RED"), 79, 47, 47},
 288         {wxT("KHAKI"), 159, 159, 95},
 289         {wxT("LIGHT BLUE"), 191, 216, 216},
 290         {wxT("LIGHT GREY"), 192, 192, 192},
 291         {wxT("LIGHT STEEL BLUE"), 143, 143, 188},
 292         {wxT("LIME GREEN"), 50, 204, 50},
 293         {wxT("LIGHT MAGENTA"), 255, 0, 255},
 294         {wxT("MAGENTA"), 255, 0, 255},
 295         {wxT("MAROON"), 142, 35, 107},
 296         {wxT("MEDIUM AQUAMARINE"), 50, 204, 153},
 297         {wxT("MEDIUM GREY"), 100, 100, 100},
 298         {wxT("MEDIUM BLUE"), 50, 50, 204},
 299         {wxT("MEDIUM FOREST GREEN"), 107, 142, 35},
 300         {wxT("MEDIUM GOLDENROD"), 234, 234, 173},
 301         {wxT("MEDIUM ORCHID"), 147, 112, 219},
 302         {wxT("MEDIUM SEA GREEN"), 66, 111, 66},
 303         {wxT("MEDIUM SLATE BLUE"), 127, 0, 255},
 304         {wxT("MEDIUM SPRING GREEN"), 127, 255, 0},
 305         {wxT("MEDIUM TURQUOISE"), 112, 219, 219},
 306         {wxT("MEDIUM VIOLET RED"), 219, 112, 147},
 307         {wxT("MIDNIGHT BLUE"), 47, 47, 79},
 308         {wxT("NAVY"), 35, 35, 142},
 309         {wxT("ORANGE"), 204, 50, 50},
 310         {wxT("ORANGE RED"), 255, 0, 127},
 311         {wxT("ORCHID"), 219, 112, 219},
 312         {wxT("PALE GREEN"), 143, 188, 143},
 313         {wxT("PINK"), 188, 143, 234},
 314         {wxT("PLUM"), 234, 173, 234},
 315         {wxT("PURPLE"), 176, 0, 255},
 316         {wxT("RED"), 255, 0, 0},
 317         {wxT("SALMON"), 111, 66, 66},
 318         {wxT("SEA GREEN"), 35, 142, 107},
 319         {wxT("SIENNA"), 142, 107, 35},
 320         {wxT("SKY BLUE"), 50, 153, 204},
 321         {wxT("SLATE BLUE"), 0, 127, 255},
 322         {wxT("SPRING GREEN"), 0, 255, 127},
 323         {wxT("STEEL BLUE"), 35, 107, 142},
 324         {wxT("TAN"), 219, 147, 112},
 325         {wxT("THISTLE"), 216, 191, 216},
 326         {wxT("TURQUOISE"), 173, 234, 234},
 327         {wxT("VIOLET"), 79, 47, 79},
 328         {wxT("VIOLET RED"), 204, 50, 153},
 329         {wxT("WHEAT"), 216, 216, 191},
 330         {wxT("WHITE"), 255, 255, 255},
 331         {wxT("YELLOW"), 255, 255, 0},
 332         {wxT("YELLOW GREEN"), 153, 204, 50}
 333     };
 334
 335     size_t n;
 336
 337     for ( n = 0; n < WXSIZEOF(wxColourTable); n++ )
 338     {
 339         const wxColourDesc& cc = wxColourTable[n];
 340         (*m_map)[cc.name] = new wxColour(cc.r, cc.g, cc.b);
 341     }
 342
 343 #ifdef __WXPM__
 344     m_palTable = new long[n];
 345     for ( n = 0; n < WXSIZEOF(wxColourTable); n++ )
 346     {
 347         const wxColourDesc& cc = wxColourTable[n];
 348         m_palTable[n] = OS2RGB(cc.r,cc.g,cc.b);
 349     }
 350     m_nSize = n;
 351 #endif
 352 }
 353
 354 // ----------------------------------------------------------------------------
 355 // wxColourDatabase operations
 356 // ----------------------------------------------------------------------------
 357
 358 void wxColourDatabase::AddColour(const wxString& name, const wxColour& colour)
 359 {
 360     Initialize();
 361
 362     // canonicalize the colour names before using them as keys: they should be
 363     // in upper case
 364     wxString colName = name;
 365     colName.MakeUpper();
 366
 367     // ... and we also allow both grey/gray
 368     wxString colNameAlt = colName;
 369     if ( !colNameAlt.Replace(_T("GRAY"), _T("GREY")) )
 370     {
 371         // but in this case it is not necessary so avoid extra search below
 372         colNameAlt.clear();
 373     }
 374
 375     wxStringToColourHashMap::iterator it = m_map->find(colName);
 376     if ( it == m_map->end() && !colNameAlt.empty() )
 377         it = m_map->find(colNameAlt);
 378     if ( it != m_map->end() )
 379     {
 380         *(it->second) = colour;
 381     }
 382     else // new colour
 383     {
 384         (*m_map)[name] = new wxColour(colour);
 385     }
 386 }
 387
 388 wxColour wxColourDatabase::Find(const wxString& colour) const
 389 {
 390     wxColourDatabase * const self = wxConstCast(this, wxColourDatabase);
 391     self->Initialize();
 392
 393     // first look among the existing colours
 394
 395     // make the comparaison case insensitive and also match both grey and gray
 396     wxString colName = colour;
 397     colName.MakeUpper();
 398     wxString colNameAlt = colName;
 399     if ( !colNameAlt.Replace(_T("GRAY"), _T("GREY")) )
 400         colNameAlt.clear();
 401
 402     wxStringToColourHashMap::iterator it = m_map->find(colName);
 403     if ( it == m_map->end() && !colNameAlt.empty() )
 404         it = m_map->find(colNameAlt);
 405     if ( it != m_map->end() )
 406         return *(it->second);
 407
 408     // if we didn't find it, query the system, maybe it knows about it
 409 #if defined(__WXGTK__) || defined(__X__)
 410     wxColour col = wxColour::CreateByName(colour);
 411
 412     if ( col.Ok() )
 413     {
 414         // cache it
 415         self->AddColour(colour, col);
 416     }
 417
 418     return col;
 419 #elif defined(__X__)
 420     // TODO: move this to wxColour::CreateByName()
 421     XColor xcolour;
 422
 423 #ifdef __WXMOTIF__
 424     Display *display = XtDisplay((Widget) wxTheApp->GetTopLevelWidget()) ;
 425 #endif
 426 #ifdef __WXX11__
 427     Display* display = (Display*) wxGetDisplay();
 428 #endif
 429     /* MATTHEW: [4] Use wxGetMainColormap */
 430     if (!XParseColor(display, (Colormap) wxTheApp->GetMainColormap((WXDisplay*) display), colour.ToAscii() ,&xcolour))
 431         return NULL;
 432
 433 #if wxUSE_NANOX
 434     unsigned char r = (unsigned char)(xcolour.red);
 435     unsigned char g = (unsigned char)(xcolour.green);
 436     unsigned char b = (unsigned char)(xcolour.blue);
 437 #else
 438     unsigned char r = (unsigned char)(xcolour.red >> 8);
 439     unsigned char g = (unsigned char)(xcolour.green >> 8);
 440     unsigned char b = (unsigned char)(xcolour.blue >> 8);
 441 #endif
 442
 443     wxColour col(r, g, b);
 444     AddColour(colour, col);
 445
 446     return col;
 447 #else // other platform
 448     return wxNullColour;
 449 #endif // platforms
 450 }
 451
 452 wxString wxColourDatabase::FindName(const wxColour& colour) const
 453 {
 454     wxColourDatabase * const self = wxConstCast(this, wxColourDatabase);
 455     self->Initialize();
 456
 457     typedef wxStringToColourHashMap::iterator iterator;
 458
 459     for ( iterator it = m_map->begin(), en = m_map->end(); it != en; ++it )
 460     {
 461         if ( *(it->second) == colour )
 462             return it->first;
 463     }
 464
 465     return wxEmptyString;
 466 }
 467
 468 // ----------------------------------------------------------------------------
 469 // deprecated wxColourDatabase methods
 470 // ----------------------------------------------------------------------------
 471
 472 wxColour *wxColourDatabase::FindColour(const wxString& name)
 473 {
 474     // This function is deprecated, use Find() instead.
 475     // Formerly this function sometimes would return a deletable pointer and
 476     // sometimes a non-deletable one (when returning a colour from the database).
 477     // Trying to delete the latter anyway results in problems, so probably
 478     // nobody ever freed the pointers. Currently it always returns a new
 479     // instance, which means there will be memory leaks.
 480     wxLogDebug(wxT("wxColourDataBase::FindColour():")
 481         wxT(" Please use wxColourDataBase::Find() instead"));
 482
 483     // using a static variable here is not the most elegant solution but unless
 484     // we want to make wxStringToColourHashMap public (i.e. move it to the
 485     // header) so that we could have a member function returning
 486     // wxStringToColourHashMap::iterator, there is really no good way to do it
 487     // otherwise
 488     //
 489     // and knowing that this function is going to disappear in the next release
 490     // anyhow I don't want to waste time on this
 491
 492     static wxColour s_col;
 493
 494     s_col = Find(name);
 495     if ( !s_col.Ok() )
 496         return NULL;
 497
 498     return new wxColour(s_col);
 499 }
 500
 501 // ============================================================================
 502 // stock objects
 503 // ============================================================================
 504
 505 void wxInitializeStockLists()
 506 {
 507     wxTheColourDatabase = new wxColourDatabase;
 508
 509     wxTheBrushList = new wxBrushList;
 510     wxThePenList = new wxPenList;
 511     wxTheFontList = new wxFontList;
 512     wxTheBitmapList = new wxBitmapList;
 513 }
 514
 515 void wxInitializeStockObjects ()
 516 {
 517 #ifdef __WXMOTIF__
 518 #endif
 519 #ifdef __X__
 520   // TODO
 521   //  wxFontPool = new XFontPool;
 522 #endif
 523
 524   // why under MSW fonts shouldn't have the standard system size?
 525 /*
 526 #ifdef __WXMSW__
 527   static const int sizeFont = 10;
 528 #else
 529 #endif
 530 */
 531 #if defined(__WXMAC__)
 532     // retrieve size of system font for all stock fonts
 533     int sizeFont = 12;
 534
 535     Str255 fontName ;
 536     SInt16 fontSize ;
 537     Style fontStyle ;
 538
 539     GetThemeFont(kThemeSystemFont , GetApplicationScript() , fontName , &fontSize , &fontStyle ) ;
 540     sizeFont = fontSize ;
 541 #if __WXMAC_CLASSIC__
 542     wxNORMAL_FONT = new wxFont (fontSize, wxMODERN, wxNORMAL, wxNORMAL , false , wxMacMakeStringFromPascal(fontName) );
 543 #else
 544     wxNORMAL_FONT = new wxFont () ;
 545     wxNORMAL_FONT->MacCreateThemeFont( kThemeSystemFont );
 546 #endif
 547 #elif defined(__WXPM__)
 548     static const int sizeFont = 12;
 549 #else
 550     wxNORMAL_FONT = new wxFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 551     static const int sizeFont = wxNORMAL_FONT->GetPointSize();
 552 #endif
 553
 554 #if defined(__WXPM__)
 555     /*
 556     // Basic OS/2 has a fairly limited number of fonts and these are as good
 557     // as I can do to get something that looks halfway "wx" normal
 558     */
 559     wxNORMAL_FONT = new wxFont (sizeFont, wxMODERN, wxNORMAL, wxBOLD);
 560     wxSMALL_FONT = new wxFont (sizeFont - 4, wxSWISS, wxNORMAL, wxNORMAL); /* Helv */
 561     wxITALIC_FONT = new wxFont (sizeFont, wxROMAN, wxITALIC, wxNORMAL);
 562     wxSWISS_FONT = new wxFont (sizeFont, wxSWISS, wxNORMAL, wxNORMAL); /* Helv */
 563 #elif defined(__WXMAC__)
 564     wxSWISS_FONT = new wxFont (sizeFont, wxSWISS, wxNORMAL, wxNORMAL); /* Helv */
 565     wxITALIC_FONT = new wxFont (sizeFont, wxROMAN, wxITALIC, wxNORMAL);
 566 #if __WXMAC_CLASSIC__
 567   GetThemeFont(kThemeSmallSystemFont , GetApplicationScript() , fontName , &fontSize , &fontStyle ) ;
 568     wxSMALL_FONT = new wxFont (fontSize, wxSWISS, wxNORMAL, wxNORMAL , false , wxMacMakeStringFromPascal( fontName ) );
 569 #else
 570     wxSMALL_FONT = new wxFont () ;
 571     wxSMALL_FONT->MacCreateThemeFont( kThemeSmallSystemFont );
 572 #endif
 573 #else
 574     wxSMALL_FONT = new wxFont (sizeFont - 2, wxSWISS, wxNORMAL, wxNORMAL);
 575     wxITALIC_FONT = new wxFont (sizeFont, wxROMAN, wxITALIC, wxNORMAL);
 576     wxSWISS_FONT = new wxFont (sizeFont, wxSWISS, wxNORMAL, wxNORMAL);
 577 #endif
 578
 579     wxRED_PEN = new wxPen (wxT("RED"), 1, wxSOLID);
 580     wxCYAN_PEN = new wxPen (wxT("CYAN"), 1, wxSOLID);
 581     wxGREEN_PEN = new wxPen (wxT("GREEN"), 1, wxSOLID);
 582     wxBLACK_PEN = new wxPen (wxT("BLACK"), 1, wxSOLID);
 583     wxWHITE_PEN = new wxPen (wxT("WHITE"), 1, wxSOLID);
 584     wxTRANSPARENT_PEN = new wxPen (wxT("BLACK"), 1, wxTRANSPARENT);
 585     wxBLACK_DASHED_PEN = new wxPen (wxT("BLACK"), 1, wxSHORT_DASH);
 586     wxGREY_PEN = new wxPen (wxT("GREY"), 1, wxSOLID);
 587     wxMEDIUM_GREY_PEN = new wxPen (wxT("MEDIUM GREY"), 1, wxSOLID);
 588     wxLIGHT_GREY_PEN = new wxPen (wxT("LIGHT GREY"), 1, wxSOLID);
 589
 590     wxBLUE_BRUSH = new wxBrush (wxT("BLUE"), wxSOLID);
 591     wxGREEN_BRUSH = new wxBrush (wxT("GREEN"), wxSOLID);
 592     wxWHITE_BRUSH = new wxBrush (wxT("WHITE"), wxSOLID);
 593     wxBLACK_BRUSH = new wxBrush (wxT("BLACK"), wxSOLID);
 594     wxTRANSPARENT_BRUSH = new wxBrush (wxT("BLACK"), wxTRANSPARENT);
 595     wxCYAN_BRUSH = new wxBrush (wxT("CYAN"), wxSOLID);
 596     wxRED_BRUSH = new wxBrush (wxT("RED"), wxSOLID);
 597     wxGREY_BRUSH = new wxBrush (wxT("GREY"), wxSOLID);
 598     wxMEDIUM_GREY_BRUSH = new wxBrush (wxT("MEDIUM GREY"), wxSOLID);
 599     wxLIGHT_GREY_BRUSH = new wxBrush (wxT("LIGHT GREY"), wxSOLID);
 600
 601     wxBLACK = new wxColour (wxT("BLACK"));
 602     wxWHITE = new wxColour (wxT("WHITE"));
 603     wxRED = new wxColour (wxT("RED"));
 604     wxBLUE = new wxColour (wxT("BLUE"));
 605     wxGREEN = new wxColour (wxT("GREEN"));
 606     wxCYAN = new wxColour (wxT("CYAN"));
 607     wxLIGHT_GREY = new wxColour (wxT("LIGHT GREY"));
 608
 609     wxSTANDARD_CURSOR = new wxCursor (wxCURSOR_ARROW);
 610     wxHOURGLASS_CURSOR = new wxCursor (wxCURSOR_WAIT);
 611     wxCROSS_CURSOR = new wxCursor (wxCURSOR_CROSS);
 612 }
 613
 614 void wxDeleteStockObjects ()
 615 {
 616     wxDELETE(wxNORMAL_FONT);
 617     wxDELETE(wxSMALL_FONT);
 618     wxDELETE(wxITALIC_FONT);
 619     wxDELETE(wxSWISS_FONT);
 620
 621     wxDELETE(wxRED_PEN);
 622     wxDELETE(wxCYAN_PEN);
 623     wxDELETE(wxGREEN_PEN);
 624     wxDELETE(wxBLACK_PEN);
 625     wxDELETE(wxWHITE_PEN);
 626     wxDELETE(wxTRANSPARENT_PEN);
 627     wxDELETE(wxBLACK_DASHED_PEN);
 628     wxDELETE(wxGREY_PEN);
 629     wxDELETE(wxMEDIUM_GREY_PEN);
 630     wxDELETE(wxLIGHT_GREY_PEN);
 631
 632     wxDELETE(wxBLUE_BRUSH);
 633     wxDELETE(wxGREEN_BRUSH);
 634     wxDELETE(wxWHITE_BRUSH);
 635     wxDELETE(wxBLACK_BRUSH);
 636     wxDELETE(wxTRANSPARENT_BRUSH);
 637     wxDELETE(wxCYAN_BRUSH);
 638     wxDELETE(wxRED_BRUSH);
 639     wxDELETE(wxGREY_BRUSH);
 640     wxDELETE(wxMEDIUM_GREY_BRUSH);
 641     wxDELETE(wxLIGHT_GREY_BRUSH);
 642
 643     wxDELETE(wxBLACK);
 644     wxDELETE(wxWHITE);
 645     wxDELETE(wxRED);
 646     wxDELETE(wxBLUE);
 647     wxDELETE(wxGREEN);
 648     wxDELETE(wxCYAN);
 649     wxDELETE(wxLIGHT_GREY);
 650
 651     wxDELETE(wxSTANDARD_CURSOR);
 652     wxDELETE(wxHOURGLASS_CURSOR);
 653     wxDELETE(wxCROSS_CURSOR);
 654 }
 655
 656 void wxDeleteStockLists()
 657 {
 658     wxDELETE(wxTheBrushList);
 659     wxDELETE(wxThePenList);
 660     wxDELETE(wxTheFontList);
 661     wxDELETE(wxTheBitmapList);
 662 }
 663
 664 // ============================================================================
 665 // wxTheXXXList stuff (semi-obsolete)
 666 // ============================================================================
 667
 668 wxBitmapList::wxBitmapList()
 669 {
 670 }
 671
 672 wxBitmapList::~wxBitmapList ()
 673 {
 674     wxList::compatibility_iterator node = GetFirst ();
 675     while (node)
 676     {
 677         wxBitmap *bitmap = (wxBitmap *) node->GetData ();
 678         wxList::compatibility_iterator next = node->GetNext ();
 679         if (bitmap->GetVisible())
 680             delete bitmap;
 681         node = next;
 682     }
 683 }
 684
 685 // Pen and Brush lists
 686 wxPenList::~wxPenList ()
 687 {
 688     wxList::compatibility_iterator node = GetFirst ();
 689     while (node)
 690     {
 691         wxPen *pen = (wxPen *) node->GetData ();
 692         wxList::compatibility_iterator next = node->GetNext ();
 693         if (pen->GetVisible())
 694             delete pen;
 695         node = next;
 696     }
 697 }
 698
 699 void wxPenList::AddPen (wxPen * pen)
 700 {
 701     Append (pen);
 702 }
 703
 704 void wxPenList::RemovePen (wxPen * pen)
 705 {
 706     DeleteObject (pen);
 707 }
 708
 709 wxPen *wxPenList::FindOrCreatePen (const wxColour& colour, int width, int style)
 710 {
 711     for (wxList::compatibility_iterator node = GetFirst (); node; node = node->GetNext ())
 712     {
 713         wxPen *each_pen = (wxPen *) node->GetData ();
 714         if (each_pen &&
 715                 each_pen->GetVisible() &&
 716                 each_pen->GetWidth () == width &&
 717                 each_pen->GetStyle () == style &&
 718                 each_pen->GetColour ().Red () == colour.Red () &&
 719                 each_pen->GetColour ().Green () == colour.Green () &&
 720                 each_pen->GetColour ().Blue () == colour.Blue ())
 721             return each_pen;
 722     }
 723
 724     wxPen *pen = new wxPen (colour, width, style);
 725     if ( !pen->Ok() )
 726     {
 727         // don't save the invalid pens in the list
 728         delete pen;
 729
 730         return NULL;
 731     }
 732
 733     AddPen(pen);
 734
 735     // we'll delete it ourselves later
 736     pen->SetVisible(true);
 737
 738     return pen;
 739 }
 740
 741 wxBrushList::~wxBrushList ()
 742 {
 743     wxList::compatibility_iterator node = GetFirst ();
 744     while (node)
 745     {
 746         wxBrush *brush = (wxBrush *) node->GetData ();
 747         wxList::compatibility_iterator next = node->GetNext ();
 748         if (brush && brush->GetVisible())
 749             delete brush;
 750         node = next;
 751     }
 752 }
 753
 754 void wxBrushList::AddBrush (wxBrush * brush)
 755 {
 756     Append (brush);
 757 }
 758
 759 wxBrush *wxBrushList::FindOrCreateBrush (const wxColour& colour, int style)
 760 {
 761     for (wxList::compatibility_iterator node = GetFirst (); node; node = node->GetNext ())
 762     {
 763         wxBrush *each_brush = (wxBrush *) node->GetData ();
 764         if (each_brush &&
 765                 each_brush->GetVisible() &&
 766                 each_brush->GetStyle () == style &&
 767                 each_brush->GetColour ().Red () == colour.Red () &&
 768                 each_brush->GetColour ().Green () == colour.Green () &&
 769                 each_brush->GetColour ().Blue () == colour.Blue ())
 770             return each_brush;
 771     }
 772
 773     wxBrush *brush = new wxBrush (colour, style);
 774
 775     if ( !brush->Ok() )
 776     {
 777         // don't put the brushes we failed to create into the list
 778         delete brush;
 779
 780         return NULL;
 781     }
 782
 783     AddBrush(brush);
 784
 785     // we'll delete it ourselves later
 786     brush->SetVisible(true);
 787
 788     return brush;
 789 }
 790
 791 void wxBrushList::RemoveBrush (wxBrush * brush)
 792 {
 793     DeleteObject (brush);
 794 }
 795
 796 wxFontList::~wxFontList ()
 797 {
 798     wxList::compatibility_iterator node = GetFirst ();
 799     while (node)
 800     {
 801         // Only delete objects that are 'visible', i.e.
 802         // that have been created using FindOrCreate...,
 803         // where the pointers are expected to be shared
 804         // (and therefore not deleted by any one part of an app).
 805         wxFont *font = (wxFont *) node->GetData ();
 806         wxList::compatibility_iterator next = node->GetNext ();
 807         if (font->GetVisible())
 808             delete font;
 809         node = next;
 810     }
 811 }
 812
 813 void wxFontList::AddFont (wxFont * font)
 814 {
 815     Append (font);
 816 }
 817
 818 void wxFontList::RemoveFont (wxFont * font)
 819 {
 820     DeleteObject (font);
 821 }
 822
 823 wxFont *wxFontList::FindOrCreateFont(int pointSize,
 824                                      int family,
 825                                      int style,
 826                                      int weight,
 827                                      bool underline,
 828                                      const wxString& facename,
 829                                      wxFontEncoding encoding)
 830 {
 831     wxFont *font = (wxFont *)NULL;
 832     wxList::compatibility_iterator node;
 833     for ( node = GetFirst(); node; node = node->GetNext() )
 834     {
 835         font = (wxFont *)node->GetData();
 836         if ( font->GetVisible() &&
 837              font->Ok() &&
 838              font->GetPointSize () == pointSize &&
 839              font->GetStyle () == style &&
 840              font->GetWeight () == weight &&
 841              font->GetUnderlined () == underline )
 842         {
 843             int fontFamily = font->GetFamily();
 844
 845 #if defined(__WXGTK__)
 846             // under GTK the default family is wxSWISS, so looking for a font
 847             // with wxDEFAULT family should return a wxSWISS one instead of
 848             // creating a new one
 849             bool same = (fontFamily == family) ||
 850                         (fontFamily == wxSWISS && family == wxDEFAULT);
 851 #else // !GTK
 852             // VZ: but why elsewhere do we require an exact match? mystery...
 853             bool same = fontFamily == family;
 854 #endif // GTK/!GTK
 855
 856             // empty facename matches anything at all: this is bad because
 857             // depending on which fonts are already created, we might get back
 858             // a different font if we create it with empty facename, but it is
 859             // still better than never matching anything in the cache at all
 860             // in this case
 861             if ( same && !facename.IsEmpty() )
 862             {
 863                 const wxString& fontFace = font->GetFaceName();
 864
 865                 // empty facename matches everything
 866                 same = !fontFace || fontFace == facename;
 867             }
 868
 869             if ( same && (encoding != wxFONTENCODING_DEFAULT) )
 870             {
 871                 // have to match the encoding too
 872                 same = font->GetEncoding() == encoding;
 873             }
 874
 875             if ( same )
 876             {
 877                 return font;
 878             }
 879         }
 880     }
 881
 882     if ( !node )
 883     {
 884         // font not found, create the new one
 885         font = new wxFont(pointSize, family, style, weight,
 886                           underline, facename, encoding);
 887
 888         AddFont(font);
 889
 890         // and mark it as being cacheable
 891         font->SetVisible(true);
 892     }
 893
 894     return font;
 895 }
 896
 897 void wxBitmapList::AddBitmap(wxBitmap *bitmap)
 898 {
 899     Append(bitmap);
 900 }
 901
 902 void wxBitmapList::RemoveBitmap(wxBitmap *bitmap)
 903 {
 904     DeleteObject(bitmap);
 905 }
 906
 907 wxSize wxGetDisplaySize()
 908 {
 909     int x, y;
 910     wxDisplaySize(& x, & y);
 911     return wxSize(x, y);
 912 }
 913
 914 wxRect wxGetClientDisplayRect()
 915 {
 916     int x, y, width, height;
 917     wxClientDisplayRect(&x, &y, &width, &height);  // call plat-specific version
 918     return wxRect(x, y, width, height);
 919 }
 920
 921 wxSize wxGetDisplaySizeMM()
 922 {
 923     int x, y;
 924     wxDisplaySizeMM(& x, & y);
 925     return wxSize(x, y);
 926 }
 927
 928 wxResourceCache::~wxResourceCache ()
 929 {
 930     wxList::compatibility_iterator node = GetFirst ();
 931     while (node) {
 932         wxObject *item = (wxObject *)node->GetData();
 933         delete item;
 934
 935         node = node->GetNext ();
 936     }
 937 }
 938