]> git.saurik.com Git - wxWidgets.git/blobdiff - src/common/gdicmn.cpp
fixing overrelease and out-of-bounds write, fixes #13725
[wxWidgets.git] / src / common / gdicmn.cpp
index 5de95ee422c64f3a6f94d7fc83974afa039f952e..885ebec1443ae964b751eec77e9b18de4872ee9f 100644 (file)
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        gdicmn.cpp
+// Name:        src/common/gdicmn.cpp
 // Purpose:     Common GDI classes
 // Author:      Julian Smart
 // Modified by:
@@ -9,61 +9,59 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "gdicmn.h"
-#endif
-
-#ifdef __VMS
-#define XtDisplay XTDISPLAY
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
-#include "wx/event.h"
 #include "wx/gdicmn.h"
-#include "wx/brush.h"
-#include "wx/pen.h"
-#include "wx/bitmap.h"
-#include "wx/icon.h"
-#include "wx/cursor.h"
-#include "wx/font.h"
-#include "wx/palette.h"
-#include "wx/app.h"
-#include "wx/dc.h"
-#include "wx/utils.h"
-#include "wx/settings.h"
-#include "wx/hashmap.h"
-
-#include "wx/log.h"
-#include <string.h>
-
-#if defined(__WXMSW__)
-#include "wx/msw/wrapwin.h"
+#include "wx/gdiobj.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/log.h"
+    #include "wx/pen.h"
+    #include "wx/brush.h"
+    #include "wx/palette.h"
+    #include "wx/icon.h"
+    #include "wx/iconbndl.h"
+    #include "wx/cursor.h"
+    #include "wx/settings.h"
+    #include "wx/bitmap.h"
+    #include "wx/colour.h"
+    #include "wx/font.h"
+    #include "wx/math.h"
 #endif
 
-#ifdef __WXMOTIF__
-#ifdef __VMS__
-#pragma message disable nosimpint
-#endif
-#include <Xm/Xm.h>
-#ifdef __VMS__
-#pragma message enable nosimpint
-#endif
-#endif
 
-#ifdef __WXX11__
-#include "X11/Xlib.h"
-#endif
+IMPLEMENT_ABSTRACT_CLASS(wxGDIObject, wxObject)
+
+
+WXDLLIMPEXP_DATA_CORE(wxBrushList*) wxTheBrushList;
+WXDLLIMPEXP_DATA_CORE(wxFontList*)  wxTheFontList;
+WXDLLIMPEXP_DATA_CORE(wxPenList*)   wxThePenList;
+
+WXDLLIMPEXP_DATA_CORE(wxColourDatabase*) wxTheColourDatabase;
 
-#ifdef __WXMAC__
-#include "wx/mac/private.h"
-#include "wx/mac/uma.h"
+WXDLLIMPEXP_DATA_CORE(wxBitmap)  wxNullBitmap;
+WXDLLIMPEXP_DATA_CORE(wxBrush)   wxNullBrush;
+WXDLLIMPEXP_DATA_CORE(wxColour)  wxNullColour;
+WXDLLIMPEXP_DATA_CORE(wxCursor)  wxNullCursor;
+WXDLLIMPEXP_DATA_CORE(wxFont)    wxNullFont;
+WXDLLIMPEXP_DATA_CORE(wxIcon)    wxNullIcon;
+WXDLLIMPEXP_DATA_CORE(wxPen)     wxNullPen;
+#if wxUSE_PALETTE
+WXDLLIMPEXP_DATA_CORE(wxPalette) wxNullPalette;
 #endif
+WXDLLIMPEXP_DATA_CORE(wxIconBundle) wxNullIconBundle;
+
+const wxSize wxDefaultSize(wxDefaultCoord, wxDefaultCoord);
+const wxPoint wxDefaultPosition(wxDefaultCoord, wxDefaultCoord);
+
+#include "wx/listimpl.cpp"
+WX_DEFINE_LIST(wxPointList)
+
 
 #if wxUSE_EXTENDED_RTTI
 
@@ -95,8 +93,6 @@ wxCUSTOM_TYPE_INFO(wxSize, wxToStringConverter<wxSize> , wxFromStringConverter<w
 
 #endif
 
-IMPLEMENT_ABSTRACT_CLASS(wxDCBase, wxObject)
-
 wxRect::wxRect(const wxPoint& point1, const wxPoint& point2)
 {
     x = point1.x;
@@ -119,23 +115,6 @@ wxRect::wxRect(const wxPoint& point1, const wxPoint& point2)
     height++;
 }
 
-bool wxRect::operator==(const wxRect& rect) const
-{
-    return ((x == rect.x) &&
-            (y == rect.y) &&
-            (width == rect.width) &&
-            (height == rect.height));
-}
-
-wxRect wxRect::operator+(const wxRect& rect) const
-{
-    int x1 = wxMin(this->x, rect.x);
-    int y1 = wxMin(this->y, rect.y);
-    int y2 = wxMax(y+height, rect.height+rect.y);
-    int x2 = wxMax(x+width, rect.width+rect.x);
-    return wxRect(x1, y1, x2-x1, y2-y1);
-}
-
 wxRect& wxRect::Union(const wxRect& rect)
 {
     // ignore empty rectangles: union with an empty rectangle shouldn't extend
@@ -163,28 +142,38 @@ wxRect& wxRect::Union(const wxRect& rect)
 
 wxRect& wxRect::Inflate(wxCoord dx, wxCoord dy)
 {
-    x -= dx;
-    y -= dy;
-    width += 2*dx;
-    height += 2*dy;
-
-    // check that we didn't make the rectangle invalid by accident (you almost
-    // never want to have negative coords and never want negative size)
-    if ( x < 0 )
-        x = 0;
-    if ( y < 0 )
-        y = 0;
-
-    // what else can we do?
-    if ( width < 0 )
-        width = 0;
-    if ( height < 0 )
-        height = 0;
+     if (-2*dx>width)
+     {
+         // Don't allow deflate to eat more width than we have,
+         // a well-defined rectangle cannot have negative width.
+         x+=width/2;
+         width=0;
+     }
+     else
+     {
+         // The inflate is valid.
+         x-=dx;
+         width+=2*dx;
+     }
+
+     if (-2*dy>height)
+     {
+         // Don't allow deflate to eat more height than we have,
+         // a well-defined rectangle cannot have negative height.
+         y+=height/2;
+         height=0;
+     }
+     else
+     {
+         // The inflate is valid.
+         y-=dy;
+         height+=2*dy;
+     }
 
     return *this;
 }
 
-bool wxRect::Inside(int cx, int cy) const
+bool wxRect::Contains(int cx, int cy) const
 {
     return ( (cx >= x) && (cy >= y)
           && ((cy - y) < height)
@@ -192,6 +181,11 @@ bool wxRect::Inside(int cx, int cy) const
           );
 }
 
+bool wxRect::Contains(const wxRect& rect) const
+{
+    return Contains(rect.GetTopLeft()) && Contains(rect.GetBottomRight());
+}
+
 wxRect& wxRect::Intersect(const wxRect& rect)
 {
     int x2 = GetRight(),
@@ -226,6 +220,43 @@ bool wxRect::Intersects(const wxRect& rect) const
     return r.width != 0;
 }
 
+wxRect& wxRect::operator+=(const wxRect& rect)
+{
+    *this = *this + rect;
+    return *this;
+}
+
+
+wxRect& wxRect::operator*=(const wxRect& rect)
+{
+    *this = *this * rect;
+    return *this;
+}
+
+
+wxRect operator+(const wxRect& r1, const wxRect& r2)
+{
+    int x1 = wxMin(r1.x, r2.x);
+    int y1 = wxMin(r1.y, r2.y);
+    int y2 = wxMax(r1.y+r1.height, r2.height+r2.y);
+    int x2 = wxMax(r1.x+r1.width, r2.width+r2.x);
+    return wxRect(x1, y1, x2-x1, y2-y1);
+}
+
+wxRect operator*(const wxRect& r1, const wxRect& r2)
+{
+    int x1 = wxMax(r1.x, r2.x);
+    int y1 = wxMax(r1.y, r2.y);
+    int y2 = wxMin(r1.y+r1.height, r2.height+r2.y);
+    int x2 = wxMin(r1.x+r1.width, r2.width+r2.x);
+    return wxRect(x1, y1, x2-x1, y2-y1);
+}
+
+wxRealPoint::wxRealPoint(const wxPoint& pt)
+ : x(pt.x), y(pt.y)
+{
+}
+
 // ============================================================================
 // wxColourDatabase
 // ============================================================================
@@ -323,7 +354,7 @@ void wxColourDatabase::Initialize()
         {wxT("ORANGE RED"), 255, 0, 127},
         {wxT("ORCHID"), 219, 112, 219},
         {wxT("PALE GREEN"), 143, 188, 143},
-        {wxT("PINK"), 188, 143, 234},
+        {wxT("PINK"), 255, 192, 203},
         {wxT("PLUM"), 234, 173, 234},
         {wxT("PURPLE"), 176, 0, 255},
         {wxT("RED"), 255, 0, 0},
@@ -379,7 +410,7 @@ void wxColourDatabase::AddColour(const wxString& name, const wxColour& colour)
 
     // ... and we also allow both grey/gray
     wxString colNameAlt = colName;
-    if ( !colNameAlt.Replace(_T("GRAY"), _T("GREY")) )
+    if ( !colNameAlt.Replace(wxT("GRAY"), wxT("GREY")) )
     {
         // but in this case it is not necessary so avoid extra search below
         colNameAlt.clear();
@@ -403,13 +434,11 @@ wxColour wxColourDatabase::Find(const wxString& colour) const
     wxColourDatabase * const self = wxConstCast(this, wxColourDatabase);
     self->Initialize();
 
-    // first look among the existing colours
-
     // make the comparaison case insensitive and also match both grey and gray
     wxString colName = colour;
     colName.MakeUpper();
     wxString colNameAlt = colName;
-    if ( !colNameAlt.Replace(_T("GRAY"), _T("GREY")) )
+    if ( !colNameAlt.Replace(wxT("GRAY"), wxT("GREY")) )
         colNameAlt.clear();
 
     wxStringToColourHashMap::iterator it = m_map->find(colName);
@@ -418,48 +447,12 @@ wxColour wxColourDatabase::Find(const wxString& colour) const
     if ( it != m_map->end() )
         return *(it->second);
 
-    // if we didn't find it, query the system, maybe it knows about it
-#if defined(__WXGTK__) || defined(__X__)
-    wxColour col = wxColour::CreateByName(colour);
-
-    if ( col.Ok() )
-    {
-        // cache it
-        self->AddColour(colour, col);
-    }
-
-    return col;
-#elif defined(__X__)
-    // TODO: move this to wxColour::CreateByName()
-    XColor xcolour;
-
-#ifdef __WXMOTIF__
-    Display *display = XtDisplay((Widget) wxTheApp->GetTopLevelWidget()) ;
-#endif
-#ifdef __WXX11__
-    Display* display = (Display*) wxGetDisplay();
-#endif
-    /* MATTHEW: [4] Use wxGetMainColormap */
-    if (!XParseColor(display, (Colormap) wxTheApp->GetMainColormap((WXDisplay*) display), colour.ToAscii() ,&xcolour))
-        return NULL;
-
-#if wxUSE_NANOX
-    unsigned char r = (unsigned char)(xcolour.red);
-    unsigned char g = (unsigned char)(xcolour.green);
-    unsigned char b = (unsigned char)(xcolour.blue);
-#else
-    unsigned char r = (unsigned char)(xcolour.red >> 8);
-    unsigned char g = (unsigned char)(xcolour.green >> 8);
-    unsigned char b = (unsigned char)(xcolour.blue >> 8);
-#endif
-
-    wxColour col(r, g, b);
-    AddColour(colour, col);
-
-    return col;
-#else // other platform
+    // we did not find any result in existing colours:
+    // we won't use wxString -> wxColour conversion because the
+    // wxColour::Set(const wxString &) function which does that conversion
+    // internally uses this function (wxColourDatabase::Find) and we want
+    // to avoid infinite recursion !
     return wxNullColour;
-#endif // platforms
 }
 
 wxString wxColourDatabase::FindName(const wxColour& colour) const
@@ -482,6 +475,7 @@ wxString wxColourDatabase::FindName(const wxColour& colour) const
 // deprecated wxColourDatabase methods
 // ----------------------------------------------------------------------------
 
+#if WXWIN_COMPATIBILITY_2_6
 wxColour *wxColourDatabase::FindColour(const wxString& name)
 {
     // This function is deprecated, use Find() instead.
@@ -505,358 +499,345 @@ wxColour *wxColourDatabase::FindColour(const wxString& name)
     static wxColour s_col;
 
     s_col = Find(name);
-    if ( !s_col.Ok() )
+    if ( !s_col.IsOk() )
         return NULL;
 
     return new wxColour(s_col);
 }
+#endif // WXWIN_COMPATIBILITY_2_6
 
 // ============================================================================
 // stock objects
 // ============================================================================
 
-void wxInitializeStockLists()
-{
-    wxTheColourDatabase = new wxColourDatabase;
+static wxStockGDI gs_wxStockGDI_instance;
+wxStockGDI* wxStockGDI::ms_instance = &gs_wxStockGDI_instance;
+wxObject* wxStockGDI::ms_stockObject[ITEMCOUNT];
 
-    wxTheBrushList = new wxBrushList;
-    wxThePenList = new wxPenList;
-    wxTheFontList = new wxFontList;
-    wxTheBitmapList = new wxBitmapList;
-}
-
-void wxInitializeStockObjects ()
+wxStockGDI::wxStockGDI()
 {
-#ifdef __WXMOTIF__
-#endif
-#ifdef __X__
-  // TODO
-  //  wxFontPool = new XFontPool;
-#endif
-
-  // why under MSW fonts shouldn't have the standard system size?
-/*
-#ifdef __WXMSW__
-  static const int sizeFont = 10;
-#else
-#endif
-*/
-#if defined(__WXMAC__)
-    // retrieve size of system font for all stock fonts
-    int sizeFont = 12;
-
-    Str255 fontName ;
-    SInt16 fontSize ;
-    Style fontStyle ;
-
-    GetThemeFont(kThemeSystemFont , GetApplicationScript() , fontName , &fontSize , &fontStyle ) ;
-    sizeFont = fontSize ;
-#ifdef __WXMAC_CLASSIC__
-    wxNORMAL_FONT = new wxFont (fontSize, wxMODERN, wxNORMAL, wxNORMAL , false , wxMacMakeStringFromPascal(fontName) );
-#else
-    wxNORMAL_FONT = new wxFont () ;
-    wxNORMAL_FONT->MacCreateThemeFont( kThemeSystemFont );
-#endif
-#elif defined(__WXPM__)
-    static const int sizeFont = 12;
-#else
-    wxNORMAL_FONT = new wxFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
-    static const int sizeFont = wxNORMAL_FONT->GetPointSize();
-#endif
-
-#if defined(__WXPM__)
-    /*
-    // Basic OS/2 has a fairly limited number of fonts and these are as good
-    // as I can do to get something that looks halfway "wx" normal
-    */
-    wxNORMAL_FONT = new wxFont (sizeFont, wxMODERN, wxNORMAL, wxBOLD);
-    wxSMALL_FONT = new wxFont (sizeFont - 4, wxSWISS, wxNORMAL, wxNORMAL); /* Helv */
-    wxITALIC_FONT = new wxFont (sizeFont, wxROMAN, wxITALIC, wxNORMAL);
-    wxSWISS_FONT = new wxFont (sizeFont, wxSWISS, wxNORMAL, wxNORMAL); /* Helv */
-#elif defined(__WXMAC__)
-    wxSWISS_FONT = new wxFont (sizeFont, wxSWISS, wxNORMAL, wxNORMAL); /* Helv */
-    wxITALIC_FONT = new wxFont (sizeFont, wxROMAN, wxITALIC, wxNORMAL);
-#ifdef __WXMAC_CLASSIC__
-  GetThemeFont(kThemeSmallSystemFont , GetApplicationScript() , fontName , &fontSize , &fontStyle ) ;
-    wxSMALL_FONT = new wxFont (fontSize, wxSWISS, wxNORMAL, wxNORMAL , false , wxMacMakeStringFromPascal( fontName ) );
-#else
-    wxSMALL_FONT = new wxFont () ;
-    wxSMALL_FONT->MacCreateThemeFont( kThemeSmallSystemFont );
-#endif
-#else
-    wxSMALL_FONT = new wxFont (sizeFont - 2, wxSWISS, wxNORMAL, wxNORMAL);
-    wxITALIC_FONT = new wxFont (sizeFont, wxROMAN, wxITALIC, wxNORMAL);
-    wxSWISS_FONT = new wxFont (sizeFont, wxSWISS, wxNORMAL, wxNORMAL);
-#endif
-
-    wxRED_PEN = new wxPen (wxT("RED"), 1, wxSOLID);
-    wxCYAN_PEN = new wxPen (wxT("CYAN"), 1, wxSOLID);
-    wxGREEN_PEN = new wxPen (wxT("GREEN"), 1, wxSOLID);
-    wxBLACK_PEN = new wxPen (wxT("BLACK"), 1, wxSOLID);
-    wxWHITE_PEN = new wxPen (wxT("WHITE"), 1, wxSOLID);
-    wxTRANSPARENT_PEN = new wxPen (wxT("BLACK"), 1, wxTRANSPARENT);
-    wxBLACK_DASHED_PEN = new wxPen (wxT("BLACK"), 1, wxSHORT_DASH);
-    wxGREY_PEN = new wxPen (wxT("GREY"), 1, wxSOLID);
-    wxMEDIUM_GREY_PEN = new wxPen (wxT("MEDIUM GREY"), 1, wxSOLID);
-    wxLIGHT_GREY_PEN = new wxPen (wxT("LIGHT GREY"), 1, wxSOLID);
-
-    wxBLUE_BRUSH = new wxBrush (wxT("BLUE"), wxSOLID);
-    wxGREEN_BRUSH = new wxBrush (wxT("GREEN"), wxSOLID);
-    wxWHITE_BRUSH = new wxBrush (wxT("WHITE"), wxSOLID);
-    wxBLACK_BRUSH = new wxBrush (wxT("BLACK"), wxSOLID);
-    wxTRANSPARENT_BRUSH = new wxBrush (wxT("BLACK"), wxTRANSPARENT);
-    wxCYAN_BRUSH = new wxBrush (wxT("CYAN"), wxSOLID);
-    wxRED_BRUSH = new wxBrush (wxT("RED"), wxSOLID);
-    wxGREY_BRUSH = new wxBrush (wxT("GREY"), wxSOLID);
-    wxMEDIUM_GREY_BRUSH = new wxBrush (wxT("MEDIUM GREY"), wxSOLID);
-    wxLIGHT_GREY_BRUSH = new wxBrush (wxT("LIGHT GREY"), wxSOLID);
-
-    wxBLACK = new wxColour (wxT("BLACK"));
-    wxWHITE = new wxColour (wxT("WHITE"));
-    wxRED = new wxColour (wxT("RED"));
-    wxBLUE = new wxColour (wxT("BLUE"));
-    wxGREEN = new wxColour (wxT("GREEN"));
-    wxCYAN = new wxColour (wxT("CYAN"));
-    wxLIGHT_GREY = new wxColour (wxT("LIGHT GREY"));
-
-    wxSTANDARD_CURSOR = new wxCursor (wxCURSOR_ARROW);
-    wxHOURGLASS_CURSOR = new wxCursor (wxCURSOR_WAIT);
-    wxCROSS_CURSOR = new wxCursor (wxCURSOR_CROSS);
-}
-
-void wxDeleteStockObjects ()
-{
-    wxDELETE(wxNORMAL_FONT);
-    wxDELETE(wxSMALL_FONT);
-    wxDELETE(wxITALIC_FONT);
-    wxDELETE(wxSWISS_FONT);
-
-    wxDELETE(wxRED_PEN);
-    wxDELETE(wxCYAN_PEN);
-    wxDELETE(wxGREEN_PEN);
-    wxDELETE(wxBLACK_PEN);
-    wxDELETE(wxWHITE_PEN);
-    wxDELETE(wxTRANSPARENT_PEN);
-    wxDELETE(wxBLACK_DASHED_PEN);
-    wxDELETE(wxGREY_PEN);
-    wxDELETE(wxMEDIUM_GREY_PEN);
-    wxDELETE(wxLIGHT_GREY_PEN);
-
-    wxDELETE(wxBLUE_BRUSH);
-    wxDELETE(wxGREEN_BRUSH);
-    wxDELETE(wxWHITE_BRUSH);
-    wxDELETE(wxBLACK_BRUSH);
-    wxDELETE(wxTRANSPARENT_BRUSH);
-    wxDELETE(wxCYAN_BRUSH);
-    wxDELETE(wxRED_BRUSH);
-    wxDELETE(wxGREY_BRUSH);
-    wxDELETE(wxMEDIUM_GREY_BRUSH);
-    wxDELETE(wxLIGHT_GREY_BRUSH);
-
-    wxDELETE(wxBLACK);
-    wxDELETE(wxWHITE);
-    wxDELETE(wxRED);
-    wxDELETE(wxBLUE);
-    wxDELETE(wxGREEN);
-    wxDELETE(wxCYAN);
-    wxDELETE(wxLIGHT_GREY);
-
-    wxDELETE(wxSTANDARD_CURSOR);
-    wxDELETE(wxHOURGLASS_CURSOR);
-    wxDELETE(wxCROSS_CURSOR);
 }
 
-void wxDeleteStockLists()
+wxStockGDI::~wxStockGDI()
 {
-    wxDELETE(wxTheBrushList);
-    wxDELETE(wxThePenList);
-    wxDELETE(wxTheFontList);
-    wxDELETE(wxTheBitmapList);
 }
 
-// ============================================================================
-// wxTheXXXList stuff (semi-obsolete)
-// ============================================================================
-
-wxBitmapList::~wxBitmapList ()
+void wxStockGDI::DeleteAll()
 {
-    wxList::compatibility_iterator node = GetFirst ();
-    while (node)
+    for (unsigned i = 0; i < ITEMCOUNT; i++)
     {
-        wxBitmap *bitmap = (wxBitmap *) node->GetData ();
-        wxList::compatibility_iterator next = node->GetNext ();
-        if (bitmap->GetVisible())
-            delete bitmap;
-        node = next;
+        wxDELETE(ms_stockObject[i]);
     }
 }
 
-// Pen and Brush lists
-wxPenList::~wxPenList ()
+const wxBrush* wxStockGDI::GetBrush(Item item)
 {
-    wxList::compatibility_iterator node = GetFirst ();
-    while (node)
+    wxBrush* brush = static_cast<wxBrush*>(ms_stockObject[item]);
+    if (brush == NULL)
     {
-        wxPen *pen = (wxPen *) node->GetData ();
-        wxList::compatibility_iterator next = node->GetNext ();
-        if (pen->GetVisible())
-            delete pen;
-        node = next;
+        switch (item)
+        {
+        case BRUSH_BLACK:
+            brush = new wxBrush(*GetColour(COLOUR_BLACK), wxBRUSHSTYLE_SOLID);
+            break;
+        case BRUSH_BLUE:
+            brush = new wxBrush(*GetColour(COLOUR_BLUE), wxBRUSHSTYLE_SOLID);
+            break;
+        case BRUSH_CYAN:
+            brush = new wxBrush(*GetColour(COLOUR_CYAN), wxBRUSHSTYLE_SOLID);
+            break;
+        case BRUSH_GREEN:
+            brush = new wxBrush(*GetColour(COLOUR_GREEN), wxBRUSHSTYLE_SOLID);
+            break;
+        case BRUSH_YELLOW:
+            brush = new wxBrush(*GetColour(COLOUR_YELLOW), wxBRUSHSTYLE_SOLID);
+            break;
+        case BRUSH_GREY:
+            brush = new wxBrush(wxColour(wxT("GREY")), wxBRUSHSTYLE_SOLID);
+            break;
+        case BRUSH_LIGHTGREY:
+            brush = new wxBrush(*GetColour(COLOUR_LIGHTGREY), wxBRUSHSTYLE_SOLID);
+            break;
+        case BRUSH_MEDIUMGREY:
+            brush = new wxBrush(wxColour(wxT("MEDIUM GREY")), wxBRUSHSTYLE_SOLID);
+            break;
+        case BRUSH_RED:
+            brush = new wxBrush(*GetColour(COLOUR_RED), wxBRUSHSTYLE_SOLID);
+            break;
+        case BRUSH_TRANSPARENT:
+            brush = new wxBrush(*GetColour(COLOUR_BLACK), wxBRUSHSTYLE_TRANSPARENT);
+            break;
+        case BRUSH_WHITE:
+            brush = new wxBrush(*GetColour(COLOUR_WHITE), wxBRUSHSTYLE_SOLID);
+            break;
+        default:
+            wxFAIL;
+        }
+        ms_stockObject[item] = brush;
     }
+    return brush;
 }
 
-void wxPenList::AddPen (wxPen * pen)
+const wxColour* wxStockGDI::GetColour(Item item)
 {
-    Append (pen);
+    wxColour* colour = static_cast<wxColour*>(ms_stockObject[item]);
+    if (colour == NULL)
+    {
+        switch (item)
+        {
+        case COLOUR_BLACK:
+            colour = new wxColour(0, 0, 0);
+            break;
+        case COLOUR_BLUE:
+            colour = new wxColour(0, 0, 255);
+            break;
+        case COLOUR_CYAN:
+            colour = new wxColour(wxT("CYAN"));
+            break;
+        case COLOUR_GREEN:
+            colour = new wxColour(0, 255, 0);
+            break;
+        case COLOUR_YELLOW:
+            colour = new wxColour(255, 255, 0);
+            break;
+        case COLOUR_LIGHTGREY:
+            colour = new wxColour(wxT("LIGHT GREY"));
+            break;
+        case COLOUR_RED:
+            colour = new wxColour(255, 0, 0);
+            break;
+        case COLOUR_WHITE:
+            colour = new wxColour(255, 255, 255);
+            break;
+        default:
+            wxFAIL;
+        }
+        ms_stockObject[item] = colour;
+    }
+    return colour;
 }
 
-void wxPenList::RemovePen (wxPen * pen)
+const wxCursor* wxStockGDI::GetCursor(Item item)
 {
-    DeleteObject (pen);
+    wxCursor* cursor = static_cast<wxCursor*>(ms_stockObject[item]);
+    if (cursor == NULL)
+    {
+        switch (item)
+        {
+        case CURSOR_CROSS:
+            cursor = new wxCursor(wxCURSOR_CROSS);
+            break;
+        case CURSOR_HOURGLASS:
+            cursor = new wxCursor(wxCURSOR_WAIT);
+            break;
+        case CURSOR_STANDARD:
+            cursor = new wxCursor(wxCURSOR_ARROW);
+            break;
+        default:
+            wxFAIL;
+        }
+        ms_stockObject[item] = cursor;
+    }
+    return cursor;
 }
 
-wxPen *wxPenList::FindOrCreatePen (const wxColour& colour, int width, int style)
+const wxFont* wxStockGDI::GetFont(Item item)
 {
-    for (wxList::compatibility_iterator node = GetFirst (); node; node = node->GetNext ())
+    wxFont* font = static_cast<wxFont*>(ms_stockObject[item]);
+    if (font == NULL)
     {
-        wxPen *each_pen = (wxPen *) node->GetData ();
-        if (each_pen &&
-                each_pen->GetVisible() &&
-                each_pen->GetWidth () == width &&
-                each_pen->GetStyle () == style &&
-                each_pen->GetColour ().Red () == colour.Red () &&
-                each_pen->GetColour ().Green () == colour.Green () &&
-                each_pen->GetColour ().Blue () == colour.Blue ())
-            return each_pen;
+        switch (item)
+        {
+        case FONT_ITALIC:
+            font = new wxFont(GetFont(FONT_NORMAL)->GetPointSize(), wxROMAN, wxITALIC, wxNORMAL);
+            break;
+        case FONT_NORMAL:
+            font = new wxFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
+            break;
+        case FONT_SMALL:
+            font = new wxFont(GetFont(FONT_NORMAL)->GetPointSize()
+                    // Using the font 2 points smaller than the normal one
+                    // results in font so small as to be unreadable under MSW.
+                    // We might want to actually use -1 under the other
+                    // platforms too but for now be conservative and keep -2
+                    // there for compatibility with the old behaviour as the
+                    // small font seems to be readable enough there as it is.
+#ifdef __WXMSW__
+                    - 1,
+#else
+                    - 2,
+#endif
+                    wxSWISS, wxNORMAL, wxNORMAL);
+            break;
+        case FONT_SWISS:
+            font = new wxFont(GetFont(FONT_NORMAL)->GetPointSize(), wxSWISS, wxNORMAL, wxNORMAL);
+            break;
+        default:
+            wxFAIL;
+        }
+        ms_stockObject[item] = font;
     }
+    return font;
+}
 
-    wxPen *pen = new wxPen (colour, width, style);
-    if ( !pen->Ok() )
+const wxPen* wxStockGDI::GetPen(Item item)
+{
+    wxPen* pen = static_cast<wxPen*>(ms_stockObject[item]);
+    if (pen == NULL)
     {
-        // don't save the invalid pens in the list
-        delete pen;
-
-        return NULL;
+        switch (item)
+        {
+        case PEN_BLACK:
+            pen = new wxPen(*GetColour(COLOUR_BLACK), 1, wxPENSTYLE_SOLID);
+            break;
+        case PEN_BLACKDASHED:
+            pen = new wxPen(*GetColour(COLOUR_BLACK), 1, wxPENSTYLE_SHORT_DASH);
+            break;
+        case PEN_BLUE:
+            pen = new wxPen(*GetColour(COLOUR_BLUE), 1, wxPENSTYLE_SOLID);
+            break;
+        case PEN_CYAN:
+            pen = new wxPen(*GetColour(COLOUR_CYAN), 1, wxPENSTYLE_SOLID);
+            break;
+        case PEN_GREEN:
+            pen = new wxPen(*GetColour(COLOUR_GREEN), 1, wxPENSTYLE_SOLID);
+            break;
+        case PEN_YELLOW:
+            pen = new wxPen(*GetColour(COLOUR_YELLOW), 1, wxPENSTYLE_SOLID);
+            break;
+        case PEN_GREY:
+            pen = new wxPen(wxColour(wxT("GREY")), 1, wxPENSTYLE_SOLID);
+            break;
+        case PEN_LIGHTGREY:
+            pen = new wxPen(*GetColour(COLOUR_LIGHTGREY), 1, wxPENSTYLE_SOLID);
+            break;
+        case PEN_MEDIUMGREY:
+            pen = new wxPen(wxColour(wxT("MEDIUM GREY")), 1, wxPENSTYLE_SOLID);
+            break;
+        case PEN_RED:
+            pen = new wxPen(*GetColour(COLOUR_RED), 1, wxPENSTYLE_SOLID);
+            break;
+        case PEN_TRANSPARENT:
+            pen = new wxPen(*GetColour(COLOUR_BLACK), 1, wxPENSTYLE_TRANSPARENT);
+            break;
+        case PEN_WHITE:
+            pen = new wxPen(*GetColour(COLOUR_WHITE), 1, wxPENSTYLE_SOLID);
+            break;
+        default:
+            wxFAIL;
+        }
+        ms_stockObject[item] = pen;
     }
+    return pen;
+}
 
-    AddPen(pen);
-
-    // we'll delete it ourselves later
-    pen->SetVisible(true);
+void wxInitializeStockLists()
+{
+    wxTheColourDatabase = new wxColourDatabase;
 
-    return pen;
+    wxTheBrushList = new wxBrushList;
+    wxThePenList = new wxPenList;
+    wxTheFontList = new wxFontList;
 }
 
-wxBrushList::~wxBrushList ()
+void wxDeleteStockLists()
 {
-    wxList::compatibility_iterator node = GetFirst ();
-    while (node)
-    {
-        wxBrush *brush = (wxBrush *) node->GetData ();
-        wxList::compatibility_iterator next = node->GetNext ();
-        if (brush && brush->GetVisible())
-            delete brush;
-        node = next;
-    }
+    wxDELETE(wxTheBrushList);
+    wxDELETE(wxThePenList);
+    wxDELETE(wxTheFontList);
+
+    // wxTheColourDatabase is cleaned up by wxAppBase::CleanUp()
 }
 
-void wxBrushList::AddBrush (wxBrush * brush)
+// ============================================================================
+// wxTheXXXList stuff (semi-obsolete)
+// ============================================================================
+
+wxGDIObjListBase::wxGDIObjListBase()
 {
-    Append (brush);
 }
 
-wxBrush *wxBrushList::FindOrCreateBrush (const wxColour& colour, int style)
+wxGDIObjListBase::~wxGDIObjListBase()
 {
-    for (wxList::compatibility_iterator node = GetFirst (); node; node = node->GetNext ())
+    for (wxList::compatibility_iterator node = list.GetFirst(); node; node = node->GetNext())
     {
-        wxBrush *each_brush = (wxBrush *) node->GetData ();
-        if (each_brush &&
-                each_brush->GetVisible() &&
-                each_brush->GetStyle () == style &&
-                each_brush->GetColour ().Red () == colour.Red () &&
-                each_brush->GetColour ().Green () == colour.Green () &&
-                each_brush->GetColour ().Blue () == colour.Blue ())
-            return each_brush;
+        delete static_cast<wxObject*>(node->GetData());
     }
+}
 
-    wxBrush *brush = new wxBrush (colour, style);
-
-    if ( !brush->Ok() )
+wxPen *wxPenList::FindOrCreatePen (const wxColour& colour, int width, wxPenStyle style)
+{
+    for ( wxList::compatibility_iterator node = list.GetFirst();
+          node;
+          node = node->GetNext() )
     {
-        // don't put the brushes we failed to create into the list
-        delete brush;
-
-        return NULL;
+        wxPen * const pen = (wxPen *) node->GetData();
+        if ( pen->GetWidth () == width &&
+                pen->GetStyle () == style &&
+                    pen->GetColour() == colour )
+            return pen;
     }
 
-    AddBrush(brush);
-
-    // we'll delete it ourselves later
-    brush->SetVisible(true);
-
-    return brush;
-}
+    wxPen* pen = NULL;
+    wxPen penTmp(colour, width, style);
+    if (penTmp.IsOk())
+    {
+        pen = new wxPen(penTmp);
+        list.Append(pen);
+    }
 
-void wxBrushList::RemoveBrush (wxBrush * brush)
-{
-    DeleteObject (brush);
+    return pen;
 }
 
-wxFontList::~wxFontList ()
+wxBrush *wxBrushList::FindOrCreateBrush (const wxColour& colour, wxBrushStyle style)
 {
-    wxList::compatibility_iterator node = GetFirst ();
-    while (node)
+    for ( wxList::compatibility_iterator node = list.GetFirst();
+          node;
+          node = node->GetNext() )
     {
-        // Only delete objects that are 'visible', i.e.
-        // that have been created using FindOrCreate...,
-        // where the pointers are expected to be shared
-        // (and therefore not deleted by any one part of an app).
-        wxFont *font = (wxFont *) node->GetData ();
-        wxList::compatibility_iterator next = node->GetNext ();
-        if (font->GetVisible())
-            delete font;
-        node = next;
+        wxBrush * const brush = (wxBrush *) node->GetData ();
+        if ( brush->GetStyle() == style && brush->GetColour() == colour )
+            return brush;
     }
-}
 
-void wxFontList::AddFont (wxFont * font)
-{
-    Append (font);
-}
+    wxBrush* brush = NULL;
+    wxBrush brushTmp(colour, style);
+    if (brushTmp.IsOk())
+    {
+        brush = new wxBrush(brushTmp);
+        list.Append(brush);
+    }
 
-void wxFontList::RemoveFont (wxFont * font)
-{
-    DeleteObject (font);
+    return brush;
 }
 
 wxFont *wxFontList::FindOrCreateFont(int pointSize,
-                                     int family,
-                                     int style,
-                                     int weight,
+                                     wxFontFamily family,
+                                     wxFontStyle style,
+                                     wxFontWeight weight,
                                      bool underline,
                                      const wxString& facename,
                                      wxFontEncoding encoding)
 {
-    wxFont *font = (wxFont *)NULL;
+    wxFont *font;
     wxList::compatibility_iterator node;
-    for ( node = GetFirst(); node; node = node->GetNext() )
+    for (node = list.GetFirst(); node; node = node->GetNext())
     {
         font = (wxFont *)node->GetData();
-        if ( font->GetVisible() &&
-             font->Ok() &&
+        if (
              font->GetPointSize () == pointSize &&
              font->GetStyle () == style &&
              font->GetWeight () == weight &&
              font->GetUnderlined () == underline )
         {
-            int fontFamily = font->GetFamily();
+            wxFontFamily fontFamily = (wxFontFamily)font->GetFamily();
 
 #if defined(__WXGTK__)
             // under GTK the default family is wxSWISS, so looking for a font
             // with wxDEFAULT family should return a wxSWISS one instead of
             // creating a new one
             bool same = (fontFamily == family) ||
-                        (fontFamily == wxSWISS && family == wxDEFAULT);
+                        (fontFamily == wxFONTFAMILY_SWISS && family == wxFONTFAMILY_DEFAULT);
 #else // !GTK
             // VZ: but why elsewhere do we require an exact match? mystery...
             bool same = fontFamily == family;
@@ -888,30 +869,26 @@ wxFont *wxFontList::FindOrCreateFont(int pointSize,
         }
     }
 
-    if ( !node )
+    // font not found, create the new one
+    font = NULL;
+    wxFont fontTmp(pointSize, family, style, weight, underline, facename, encoding);
+    if (fontTmp.IsOk())
     {
-        // font not found, create the new one
-        font = new wxFont(pointSize, family, style, weight,
-                          underline, facename, encoding);
-
-        AddFont(font);
-
-        // and mark it as being cacheable
-        font->SetVisible(true);
+        font = new wxFont(fontTmp);
+        list.Append(font);
     }
 
     return font;
 }
 
-void wxBitmapList::AddBitmap(wxBitmap *bitmap)
-{
-    Append(bitmap);
-}
-
-void wxBitmapList::RemoveBitmap(wxBitmap *bitmap)
-{
-    DeleteObject(bitmap);
-}
+#if WXWIN_COMPATIBILITY_2_6
+void wxBrushList::AddBrush(wxBrush*) { }
+void wxBrushList::RemoveBrush(wxBrush*) { }
+void wxFontList::AddFont(wxFont*) { }
+void wxFontList::RemoveFont(wxFont*) { }
+void wxPenList::AddPen(wxPen*) { }
+void wxPenList::RemovePen(wxPen*) { }
+#endif
 
 wxSize wxGetDisplaySize()
 {
@@ -934,6 +911,15 @@ wxSize wxGetDisplaySizeMM()
     return wxSize(x, y);
 }
 
+wxSize wxGetDisplayPPI()
+{
+    const wxSize pixels = wxGetDisplaySize();
+    const wxSize mm = wxGetDisplaySizeMM();
+
+    return wxSize((int)((pixels.x * inches2mm) / mm.x),
+                  (int)((pixels.y * inches2mm) / mm.y));
+}
+
 wxResourceCache::~wxResourceCache ()
 {
     wxList::compatibility_iterator node = GetFirst ();
@@ -944,4 +930,3 @@ wxResourceCache::~wxResourceCache ()
         node = node->GetNext ();
     }
 }
-