src/common/gdicmn.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        gdicmn.cpp
// Purpose:     Common GDI classes
// Author:      Julian Smart
// Modified by:
// Created:     01/02/97
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart and Markus Holzem
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#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
#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/log.h"
#include <string.h>

#ifdef __WXMSW__
#include <windows.h>
#endif

#ifdef __WXMOTIF__
#ifdef __VMS__
#pragma message disable nosimpint
#endif
#include <Xm/Xm.h>
#ifdef __VMS__
#pragma message enable nosimpint
#endif
#endif

IMPLEMENT_CLASS(wxColourDatabase, wxList)
IMPLEMENT_DYNAMIC_CLASS(wxFontList, wxList)
IMPLEMENT_DYNAMIC_CLASS(wxPenList, wxList)
IMPLEMENT_DYNAMIC_CLASS(wxBrushList, wxList)
IMPLEMENT_DYNAMIC_CLASS(wxBitmapList, wxList)
IMPLEMENT_DYNAMIC_CLASS(wxResourceCache, wxList)

IMPLEMENT_ABSTRACT_CLASS(wxDCBase, wxObject)

wxRect::wxRect(const wxPoint& topLeft, const wxPoint& bottomRight)
{
  x = topLeft.x;
  y = topLeft.y;
  width = bottomRight.x - topLeft.x + 1;
  height = bottomRight.y - topLeft.y + 1;

  if (width < 0)
  {
    width = -width;
    x -= width;
  }

  if (height < 0)
  {
    height = -height;
    y -= height;
  }
}

wxRect::wxRect(const wxPoint& point, const wxSize& size)
{
    x = point.x; y = point.y;
    width = size.x; height = size.y;
}

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)
{
    *this = (*this + rect);
    return ( *this ) ;
}

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);
}

bool wxRect::Inside(int cx, int cy) const
{
    return ( (cx >= x) && (cy >= y)
          && ((cy - y) < height)
          && ((cx - x) < width)
          );
}

wxColourDatabase::wxColourDatabase (int type) : wxList (type)
{
}

wxColourDatabase::~wxColourDatabase ()
{
  // Cleanup Colour allocated in Initialize()
  wxNode *node = First ();
  while (node)
    {
      wxColour *col = (wxColour *) node->Data ();
      wxNode *next = node->Next ();
      delete col;
      node = next;
    }
#ifdef __WXPM__
    delete [] m_palTable;
#endif
}

// Colour database stuff
void wxColourDatabase::Initialize ()
{
    static const struct wxColourDesc
    {
        const wxChar *name;
        int r,g,b;
    }
    wxColourTable[] =
    {
        {wxT("AQUAMARINE"),112, 219, 147},
        {wxT("BLACK"),0, 0, 0},
        {wxT("BLUE"), 0, 0, 255},
        {wxT("BLUE VIOLET"), 159, 95, 159},
        {wxT("BROWN"), 165, 42, 42},
        {wxT("CADET BLUE"), 95, 159, 159},
        {wxT("CORAL"), 255, 127, 0},
        {wxT("CORNFLOWER BLUE"), 66, 66, 111},
        {wxT("CYAN"), 0, 255, 255},
        {wxT("DARK GREY"), 47, 47, 47},   // ?

        {wxT("DARK GREEN"), 47, 79, 47},
        {wxT("DARK OLIVE GREEN"), 79, 79, 47},
        {wxT("DARK ORCHID"), 153, 50, 204},
        {wxT("DARK SLATE BLUE"), 107, 35, 142},
        {wxT("DARK SLATE GREY"), 47, 79, 79},
        {wxT("DARK TURQUOISE"), 112, 147, 219},
        {wxT("DIM GREY"), 84, 84, 84},
        {wxT("FIREBRICK"), 142, 35, 35},
        {wxT("FOREST GREEN"), 35, 142, 35},
        {wxT("GOLD"), 204, 127, 50},
        {wxT("GOLDENROD"), 219, 219, 112},
        {wxT("GREY"), 128, 128, 128},
        {wxT("GREEN"), 0, 255, 0},
        {wxT("GREEN YELLOW"), 147, 219, 112},
        {wxT("INDIAN RED"), 79, 47, 47},
        {wxT("KHAKI"), 159, 159, 95},
        {wxT("LIGHT BLUE"), 191, 216, 216},
        {wxT("LIGHT GREY"), 192, 192, 192},
        {wxT("LIGHT STEEL BLUE"), 143, 143, 188},
        {wxT("LIME GREEN"), 50, 204, 50},
        {wxT("LIGHT MAGENTA"), 255, 0, 255},
        {wxT("MAGENTA"), 255, 0, 255},
        {wxT("MAROON"), 142, 35, 107},
        {wxT("MEDIUM AQUAMARINE"), 50, 204, 153},
        {wxT("MEDIUM GREY"), 100, 100, 100},
        {wxT("MEDIUM BLUE"), 50, 50, 204},
        {wxT("MEDIUM FOREST GREEN"), 107, 142, 35},
        {wxT("MEDIUM GOLDENROD"), 234, 234, 173},
        {wxT("MEDIUM ORCHID"), 147, 112, 219},
        {wxT("MEDIUM SEA GREEN"), 66, 111, 66},
        {wxT("MEDIUM SLATE BLUE"), 127, 0, 255},
        {wxT("MEDIUM SPRING GREEN"), 127, 255, 0},
        {wxT("MEDIUM TURQUOISE"), 112, 219, 219},
        {wxT("MEDIUM VIOLET RED"), 219, 112, 147},
        {wxT("MIDNIGHT BLUE"), 47, 47, 79},
        {wxT("NAVY"), 35, 35, 142},
        {wxT("ORANGE"), 204, 50, 50},
        {wxT("ORANGE RED"), 255, 0, 127},
        {wxT("ORCHID"), 219, 112, 219},
        {wxT("PALE GREEN"), 143, 188, 143},
        {wxT("PINK"), 188, 143, 234},
        {wxT("PLUM"), 234, 173, 234},
        {wxT("PURPLE"), 176, 0, 255},
        {wxT("RED"), 255, 0, 0},
        {wxT("SALMON"), 111, 66, 66},
        {wxT("SEA GREEN"), 35, 142, 107},
        {wxT("SIENNA"), 142, 107, 35},
        {wxT("SKY BLUE"), 50, 153, 204},
        {wxT("SLATE BLUE"), 0, 127, 255},
        {wxT("SPRING GREEN"), 0, 255, 127},
        {wxT("STEEL BLUE"), 35, 107, 142},
        {wxT("TAN"), 219, 147, 112},
        {wxT("THISTLE"), 216, 191, 216},
        {wxT("TURQUOISE"), 173, 234, 234},
        {wxT("VIOLET"), 79, 47, 79},
        {wxT("VIOLET RED"), 204, 50, 153},
        {wxT("WHEAT"), 216, 216, 191},
        {wxT("WHITE"), 255, 255, 255},
        {wxT("YELLOW"), 255, 255, 0},
        {wxT("YELLOW GREEN"), 153, 204, 50},
        {wxT("MEDIUM GOLDENROD"), 234, 234, 173},
        {wxT("MEDIUM FOREST GREEN"), 107, 142, 35},
        {wxT("LIGHT MAGENTA"), 255, 0, 255},
        {wxT("MEDIUM GREY"), 100, 100, 100},
    };

    size_t      n;

    for ( n = 0; n < WXSIZEOF(wxColourTable); n++ )
    {
        const wxColourDesc& cc = wxColourTable[n];
        Append(cc.name, new wxColour(cc.r,cc.g,cc.b));
    }
#ifdef __WXPM__
    m_palTable = new long[n];
    for ( n = 0; n < WXSIZEOF(wxColourTable); n++ )
    {
        const wxColourDesc& cc = wxColourTable[n];
        m_palTable[n] = OS2RGB(cc.r,cc.g,cc.b);
    }
    m_nSize = n;
#endif
}

/*
 * Changed by Ian Brown, July 1994.
 *
 * When running under X, the Colour Database starts off empty. The X server
 * is queried for the colour first time after which it is entered into the
 * database. This allows our client to use the server colour database which
 * is hopefully gamma corrected for the display being used.
 */

wxColour *wxColourDatabase::FindColour(const wxString& colour)
{
    // VZ: make the comparaison case insensitive and also match both grey and
    //     gray
    wxString colName = colour;
    colName.MakeUpper();
    wxString colName2 = colName;
    if ( !colName2.Replace(_T("GRAY"), _T("GREY")) )
        colName2.clear();

    wxNode *node = First();
    while ( node )
    {
        const wxChar *key = node->GetKeyString();
        if ( colName == key || colName2 == key )
        {
            return (wxColour *)node->Data();
        }

        node = node->Next();
    }

#ifdef __WXMSW__
  return NULL;
#endif
#ifdef __WXPM__
  return NULL;
#endif

// TODO for other implementations. This should really go into
// platform-specific directories.
#ifdef __WXMAC__
  return NULL;
#endif
#ifdef __WXSTUBS__
  return NULL;
#endif

#ifdef __WXGTK__
  wxColour *col = new wxColour( colour );

  if (!(col->Ok())) {
      delete col;
      return (wxColour *) NULL;
  }
  Append( colour, col );
  return col;
#endif

#ifdef __X__
    XColor xcolour;

#ifdef __WXMOTIF__
    Display *display = XtDisplay((Widget) wxTheApp->GetTopLevelWidget()) ;
#endif
#ifdef __XVIEW__
    Xv_Screen screen = xv_get(xview_server, SERVER_NTH_SCREEN, 0);
    Xv_opaque root_window = xv_get(screen, XV_ROOT);
    Display *display = (Display *)xv_get(root_window, XV_DISPLAY);
#endif

    /* MATTHEW: [4] Use wxGetMainColormap */
    if (!XParseColor(display, (Colormap) wxTheApp->GetMainColormap((WXDisplay*) display), colour,&xcolour))
      return NULL;

    unsigned char r = (unsigned char)(xcolour.red >> 8);
    unsigned char g = (unsigned char)(xcolour.green >> 8);
    unsigned char b = (unsigned char)(xcolour.blue >> 8);

    wxColour *col = new wxColour(r, g, b);
    Append(colour, col);

    return col;
#endif // __X__
}

wxString wxColourDatabase::FindName (const wxColour& colour) const
{
    wxString name;

    unsigned char red = colour.Red ();
    unsigned char green = colour.Green ();
    unsigned char blue = colour.Blue ();

    for (wxNode * node = First (); node; node = node->Next ())
    {
        wxColour *col = (wxColour *) node->Data ();

        if (col->Red () == red && col->Green () == green && col->Blue () == blue)
        {
            const wxChar *found = node->GetKeyString();
            if ( found )
            {
                name = found;

                break;
            }
        }
    }

    return name;
}

void wxInitializeStockLists () {
  wxTheBrushList = new wxBrushList;
  wxThePenList = new wxPenList;
  wxTheFontList = new wxFontList;
  wxTheBitmapList = new wxBitmapList;
}

void wxInitializeStockObjects ()
{
#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(__WXPM__) || defined(__WXMAC__)
  static const int sizeFont = 12;
  wxNORMAL_FONT = new wxFont (sizeFont, wxMODERN, wxNORMAL, wxNORMAL);
#else
  wxNORMAL_FONT = new wxFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
  static const int sizeFont = wxNORMAL_FONT->GetPointSize();
#endif

  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);

  wxRED_PEN = new wxPen ("RED", 1, wxSOLID);
  wxCYAN_PEN = new wxPen ("CYAN", 1, wxSOLID);
  wxGREEN_PEN = new wxPen ("GREEN", 1, wxSOLID);
  wxBLACK_PEN = new wxPen ("BLACK", 1, wxSOLID);
  wxWHITE_PEN = new wxPen ("WHITE", 1, wxSOLID);
  wxTRANSPARENT_PEN = new wxPen ("BLACK", 1, wxTRANSPARENT);
  wxBLACK_DASHED_PEN = new wxPen ("BLACK", 1, wxSHORT_DASH);
  wxGREY_PEN = new wxPen ("GREY", 1, wxSOLID);
  wxMEDIUM_GREY_PEN = new wxPen ("MEDIUM GREY", 1, wxSOLID);
  wxLIGHT_GREY_PEN = new wxPen ("LIGHT GREY", 1, wxSOLID);

  wxBLUE_BRUSH = new wxBrush ("BLUE", wxSOLID);
  wxGREEN_BRUSH = new wxBrush ("GREEN", wxSOLID);
  wxWHITE_BRUSH = new wxBrush ("WHITE", wxSOLID);
  wxBLACK_BRUSH = new wxBrush ("BLACK", wxSOLID);
  wxTRANSPARENT_BRUSH = new wxBrush ("BLACK", wxTRANSPARENT);
  wxCYAN_BRUSH = new wxBrush ("CYAN", wxSOLID);
  wxRED_BRUSH = new wxBrush ("RED", wxSOLID);
  wxGREY_BRUSH = new wxBrush ("GREY", wxSOLID);
  wxMEDIUM_GREY_BRUSH = new wxBrush ("MEDIUM GREY", wxSOLID);
  wxLIGHT_GREY_BRUSH = new wxBrush ("LIGHT GREY", wxSOLID);

  wxBLACK = new wxColour ("BLACK");
  wxWHITE = new wxColour ("WHITE");
  wxRED = new wxColour ("RED");
  wxBLUE = new wxColour ("BLUE");
  wxGREEN = new wxColour ("GREEN");
  wxCYAN = new wxColour ("CYAN");
  wxLIGHT_GREY = new wxColour ("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() {
  wxDELETE(wxTheBrushList);
  wxDELETE(wxThePenList);
  wxDELETE(wxTheFontList);
  wxDELETE(wxTheBitmapList);
}

wxBitmapList::wxBitmapList ()
{
}

wxBitmapList::~wxBitmapList ()
{
  wxNode *node = First ();
  while (node)
    {
      wxBitmap *bitmap = (wxBitmap *) node->Data ();
      wxNode *next = node->Next ();
      if (bitmap->GetVisible())
        delete bitmap;
      node = next;
    }
}

// Pen and Brush lists
wxPenList::~wxPenList ()
{
  wxNode *node = First ();
  while (node)
    {
      wxPen *pen = (wxPen *) node->Data ();
      wxNode *next = node->Next ();
      if (pen->GetVisible())
        delete pen;
      node = next;
    }
}

void wxPenList::AddPen (wxPen * pen)
{
  Append (pen);
}

void wxPenList::RemovePen (wxPen * pen)
{
  DeleteObject (pen);
}

wxPen *wxPenList::FindOrCreatePen (const wxColour& colour, int width, int style)
{
    for (wxNode * node = First (); node; node = node->Next ())
    {
        wxPen *each_pen = (wxPen *) node->Data ();
        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;
    }

    wxPen *pen = new wxPen (colour, width, style);
    if ( !pen->Ok() )
    {
        // don't save the invalid pens in the list
        delete pen;

        return NULL;
    }

    // Yes, we can return a pointer to this in a later FindOrCreatePen call,
    // because we created it within FindOrCreatePen. Safeguards against
    // returning a pointer to an automatic variable and hanging on to it
    // (dangling pointer).
    pen->SetVisible(TRUE);

    return pen;
}

wxBrushList::~wxBrushList ()
{
  wxNode *node = First ();
  while (node)
    {
      wxBrush *brush = (wxBrush *) node->Data ();
      wxNode *next = node->Next ();
      if (brush->GetVisible())
        delete brush;
      node = next;
    }
}

void wxBrushList::AddBrush (wxBrush * brush)
{
  Append (brush);
}

wxBrush *wxBrushList::FindOrCreateBrush (const wxColour& colour, int style)
{
    for (wxNode * node = First (); node; node = node->Next ())
    {
        wxBrush *each_brush = (wxBrush *) node->Data ();
        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;
    }

    wxBrush *brush = new wxBrush (colour, style);

    if ( !brush->Ok() )
    {
        // don't put the brushes we failed to create into the list
        delete brush;

        return NULL;
    }

    brush->SetVisible(TRUE);

    // Yes, we can return a pointer to this in a later FindOrCreateBrush call,
    // because we created it within FindOrCreateBrush. Safeguards against
    // returning a pointer to an automatic variable and hanging on to it
    // (dangling pointer).
    return brush;
}

void wxBrushList::RemoveBrush (wxBrush * brush)
{
  DeleteObject (brush);
}

wxFontList::~wxFontList ()
{
    wxNode *node = First ();
    while (node)
    {
        // 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->Data ();
        wxNode *next = node->Next ();
        if (font->GetVisible())
            delete font;
        node = next;
    }
}

void wxFontList::AddFont (wxFont * font)
{
  Append (font);
}

void wxFontList::RemoveFont (wxFont * font)
{
  DeleteObject (font);
}

wxFont *wxFontList::FindOrCreateFont(int pointSize,
                                     int family,
                                     int style,
                                     int weight,
                                     bool underline,
                                     const wxString& facename,
                                     wxFontEncoding encoding)
{
    wxFont *font = (wxFont *)NULL;
    wxNode *node;
    for ( node = First(); node; node = node->Next() )
    {
        font = (wxFont *)node->Data();
        if ( font->GetVisible() &&
             font->Ok() &&
             font->GetPointSize () == pointSize &&
             font->GetStyle () == style &&
             font->GetWeight () == weight &&
             font->GetUnderlined () == underline )
        {
            int fontFamily = 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);
#else // !GTK
            // VZ: but why elsewhere do we require an exact match? mystery...
            bool same = fontFamily == family;
#endif // GTK/!GTK

            // empty facename matches anything at all: this is bad because
            // depending on which fonts are already created, we might get back
            // a different font if we create it with empty facename, but it is
            // still better than never matching anything in the cache at all
            // in this case
            if ( same && !!facename )
            {
                const wxString& fontFace = font->GetFaceName();

                // empty facename matches everything
                same = !fontFace || fontFace == facename;
            }

            if ( same && (encoding != wxFONTENCODING_DEFAULT) )
            {
                // have to match the encoding too
                same = font->GetEncoding() == encoding;
            }

            if ( same )
            {
                return font;
            }
        }
    }

    if ( !node )
    {
        // font not found, create the new one
        font = new wxFont(pointSize, family, style, weight,
                          underline, facename, encoding);

        // and mark it as being cacheable
        font->SetVisible(TRUE);
    }

    return font;
}

void wxBitmapList::AddBitmap(wxBitmap *bitmap)
{
    Append(bitmap);
}

void wxBitmapList::RemoveBitmap(wxBitmap *bitmap)
{
    DeleteObject(bitmap);
}

wxSize wxGetDisplaySize()
{
    int x, y;
    wxDisplaySize(& x, & y);
    return wxSize(x, y);
}

wxRect wxGetClientDisplayRect()
{
    int x, y, width, height;
    wxClientDisplayRect(&x, &y, &width, &height);  // call plat-specific version
    return wxRect(x, y, width, height);
}

wxSize wxGetDisplaySizeMM()
{
    int x, y;
    wxDisplaySizeMM(& x, & y);
    return wxSize(x, y);
}

wxResourceCache::~wxResourceCache ()
{
    wxNode *node = First ();
    while (node) {
        wxObject *item = (wxObject *)node->Data();
        delete item;

        node = node->Next ();
    }
}
Commit	Line	Data
	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 and Markus Holzem
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifdef __GNUG__
	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
	41	#include "wx/log.h"
	42	#include <string.h>
	43
	44	#ifdef __WXMSW__
	45	#include <windows.h>
	46	#endif
	47
	48	#ifdef __WXMOTIF__
	49	#ifdef __VMS__
	50	#pragma message disable nosimpint
	51	#endif
	52	#include <Xm/Xm.h>
	53	#ifdef __VMS__
	54	#pragma message enable nosimpint
	55	#endif
	56	#endif
	57
	58	IMPLEMENT_CLASS(wxColourDatabase, wxList)
	59	IMPLEMENT_DYNAMIC_CLASS(wxFontList, wxList)
	60	IMPLEMENT_DYNAMIC_CLASS(wxPenList, wxList)
	61	IMPLEMENT_DYNAMIC_CLASS(wxBrushList, wxList)
	62	IMPLEMENT_DYNAMIC_CLASS(wxBitmapList, wxList)
	63	IMPLEMENT_DYNAMIC_CLASS(wxResourceCache, wxList)
	64
	65	IMPLEMENT_ABSTRACT_CLASS(wxDCBase, wxObject)
	66
	67	wxRect::wxRect(const wxPoint& topLeft, const wxPoint& bottomRight)
	68	{
	69	x = topLeft.x;
	70	y = topLeft.y;
	71	width = bottomRight.x - topLeft.x + 1;
	72	height = bottomRight.y - topLeft.y + 1;
	73
	74	if (width < 0)
	75	{
	76	width = -width;
	77	x -= width;
	78	}
	79
	80	if (height < 0)
	81	{
	82	height = -height;
	83	y -= height;
	84	}
	85	}
	86
	87	wxRect::wxRect(const wxPoint& point, const wxSize& size)
	88	{
	89	x = point.x; y = point.y;
	90	width = size.x; height = size.y;
	91	}
	92
	93	bool wxRect::operator==(const wxRect& rect) const
	94	{
	95	return ((x == rect.x) &&
	96	(y == rect.y) &&
	97	(width == rect.width) &&
	98	(height == rect.height));
	99	}
	100
	101	wxRect& wxRect::operator += (const wxRect& rect)
	102	{
	103	this = (this + rect);
	104	return ( *this ) ;
	105	}
	106
	107	wxRect wxRect::operator + (const wxRect& rect) const
	108	{
	109	int x1 = wxMin(this->x, rect.x);
	110	int y1 = wxMin(this->y, rect.y);
	111	int y2 = wxMax(y+height, rect.height+rect.y);
	112	int x2 = wxMax(x+width, rect.width+rect.x);
	113	return wxRect(x1, y1, x2-x1, y2-y1);
	114	}
	115
	116	bool wxRect::Inside(int cx, int cy) const
	117	{
	118	return ( (cx >= x) && (cy >= y)
	119	&& ((cy - y) < height)
	120	&& ((cx - x) < width)
	121	);
	122	}
	123
	124	wxColourDatabase::wxColourDatabase (int type) : wxList (type)
	125	{
	126	}
	127
	128	wxColourDatabase::~wxColourDatabase ()
	129	{
	130	// Cleanup Colour allocated in Initialize()
	131	wxNode *node = First ();
	132	while (node)
	133	{
	134	wxColour col = (wxColour ) node->Data ();
	135	wxNode *next = node->Next ();
	136	delete col;
	137	node = next;
	138	}
	139	#ifdef __WXPM__
	140	delete [] m_palTable;
	141	#endif
	142	}
	143
	144	// Colour database stuff
	145	void wxColourDatabase::Initialize ()
	146	{
	147	static const struct wxColourDesc
	148	{
	149	const wxChar *name;
	150	int r,g,b;
	151	}
	152	wxColourTable[] =
	153	{
	154	{wxT("AQUAMARINE"),112, 219, 147},
	155	{wxT("BLACK"),0, 0, 0},
	156	{wxT("BLUE"), 0, 0, 255},
	157	{wxT("BLUE VIOLET"), 159, 95, 159},
	158	{wxT("BROWN"), 165, 42, 42},
	159	{wxT("CADET BLUE"), 95, 159, 159},
	160	{wxT("CORAL"), 255, 127, 0},
	161	{wxT("CORNFLOWER BLUE"), 66, 66, 111},
	162	{wxT("CYAN"), 0, 255, 255},
	163	{wxT("DARK GREY"), 47, 47, 47}, // ?
	164
	165	{wxT("DARK GREEN"), 47, 79, 47},
	166	{wxT("DARK OLIVE GREEN"), 79, 79, 47},
	167	{wxT("DARK ORCHID"), 153, 50, 204},
	168	{wxT("DARK SLATE BLUE"), 107, 35, 142},
	169	{wxT("DARK SLATE GREY"), 47, 79, 79},
	170	{wxT("DARK TURQUOISE"), 112, 147, 219},
	171	{wxT("DIM GREY"), 84, 84, 84},
	172	{wxT("FIREBRICK"), 142, 35, 35},
	173	{wxT("FOREST GREEN"), 35, 142, 35},
	174	{wxT("GOLD"), 204, 127, 50},
	175	{wxT("GOLDENROD"), 219, 219, 112},
	176	{wxT("GREY"), 128, 128, 128},
	177	{wxT("GREEN"), 0, 255, 0},
	178	{wxT("GREEN YELLOW"), 147, 219, 112},
	179	{wxT("INDIAN RED"), 79, 47, 47},
	180	{wxT("KHAKI"), 159, 159, 95},
	181	{wxT("LIGHT BLUE"), 191, 216, 216},
	182	{wxT("LIGHT GREY"), 192, 192, 192},
	183	{wxT("LIGHT STEEL BLUE"), 143, 143, 188},
	184	{wxT("LIME GREEN"), 50, 204, 50},
	185	{wxT("LIGHT MAGENTA"), 255, 0, 255},
	186	{wxT("MAGENTA"), 255, 0, 255},
	187	{wxT("MAROON"), 142, 35, 107},
	188	{wxT("MEDIUM AQUAMARINE"), 50, 204, 153},
	189	{wxT("MEDIUM GREY"), 100, 100, 100},
	190	{wxT("MEDIUM BLUE"), 50, 50, 204},
	191	{wxT("MEDIUM FOREST GREEN"), 107, 142, 35},
	192	{wxT("MEDIUM GOLDENROD"), 234, 234, 173},
	193	{wxT("MEDIUM ORCHID"), 147, 112, 219},
	194	{wxT("MEDIUM SEA GREEN"), 66, 111, 66},
	195	{wxT("MEDIUM SLATE BLUE"), 127, 0, 255},
	196	{wxT("MEDIUM SPRING GREEN"), 127, 255, 0},
	197	{wxT("MEDIUM TURQUOISE"), 112, 219, 219},
	198	{wxT("MEDIUM VIOLET RED"), 219, 112, 147},
	199	{wxT("MIDNIGHT BLUE"), 47, 47, 79},
	200	{wxT("NAVY"), 35, 35, 142},
	201	{wxT("ORANGE"), 204, 50, 50},
	202	{wxT("ORANGE RED"), 255, 0, 127},
	203	{wxT("ORCHID"), 219, 112, 219},
	204	{wxT("PALE GREEN"), 143, 188, 143},
	205	{wxT("PINK"), 188, 143, 234},
	206	{wxT("PLUM"), 234, 173, 234},
	207	{wxT("PURPLE"), 176, 0, 255},
	208	{wxT("RED"), 255, 0, 0},
	209	{wxT("SALMON"), 111, 66, 66},
	210	{wxT("SEA GREEN"), 35, 142, 107},
	211	{wxT("SIENNA"), 142, 107, 35},
	212	{wxT("SKY BLUE"), 50, 153, 204},
	213	{wxT("SLATE BLUE"), 0, 127, 255},
	214	{wxT("SPRING GREEN"), 0, 255, 127},
	215	{wxT("STEEL BLUE"), 35, 107, 142},
	216	{wxT("TAN"), 219, 147, 112},
	217	{wxT("THISTLE"), 216, 191, 216},
	218	{wxT("TURQUOISE"), 173, 234, 234},
	219	{wxT("VIOLET"), 79, 47, 79},
	220	{wxT("VIOLET RED"), 204, 50, 153},
	221	{wxT("WHEAT"), 216, 216, 191},
	222	{wxT("WHITE"), 255, 255, 255},
	223	{wxT("YELLOW"), 255, 255, 0},
	224	{wxT("YELLOW GREEN"), 153, 204, 50},
	225	{wxT("MEDIUM GOLDENROD"), 234, 234, 173},
	226	{wxT("MEDIUM FOREST GREEN"), 107, 142, 35},
	227	{wxT("LIGHT MAGENTA"), 255, 0, 255},
	228	{wxT("MEDIUM GREY"), 100, 100, 100},
	229	};
	230
	231	size_t n;
	232
	233	for ( n = 0; n < WXSIZEOF(wxColourTable); n++ )
	234	{
	235	const wxColourDesc& cc = wxColourTable[n];
	236	Append(cc.name, new wxColour(cc.r,cc.g,cc.b));
	237	}
	238	#ifdef __WXPM__
	239	m_palTable = new long[n];
	240	for ( n = 0; n < WXSIZEOF(wxColourTable); n++ )
	241	{
	242	const wxColourDesc& cc = wxColourTable[n];
	243	m_palTable[n] = OS2RGB(cc.r,cc.g,cc.b);
	244	}
	245	m_nSize = n;
	246	#endif
	247	}
	248
	249	/*
	250	* Changed by Ian Brown, July 1994.
	251	*
	252	* When running under X, the Colour Database starts off empty. The X server
	253	* is queried for the colour first time after which it is entered into the
	254	* database. This allows our client to use the server colour database which
	255	* is hopefully gamma corrected for the display being used.
	256	*/
	257
	258	wxColour *wxColourDatabase::FindColour(const wxString& colour)
	259	{
	260	// VZ: make the comparaison case insensitive and also match both grey and
	261	// gray
	262	wxString colName = colour;
	263	colName.MakeUpper();
	264	wxString colName2 = colName;
	265	if ( !colName2.Replace(_T("GRAY"), _T("GREY")) )
	266	colName2.clear();
	267
	268	wxNode *node = First();
	269	while ( node )
	270	{
	271	const wxChar *key = node->GetKeyString();
	272	if ( colName == key \|\| colName2 == key )
	273	{
	274	return (wxColour *)node->Data();
	275	}
	276
	277	node = node->Next();
	278	}
	279
	280	#ifdef __WXMSW__
	281	return NULL;
	282	#endif
	283	#ifdef __WXPM__
	284	return NULL;
	285	#endif
	286
	287	// TODO for other implementations. This should really go into
	288	// platform-specific directories.
	289	#ifdef __WXMAC__
	290	return NULL;
	291	#endif
	292	#ifdef __WXSTUBS__
	293	return NULL;
	294	#endif
	295
	296	#ifdef __WXGTK__
	297	wxColour *col = new wxColour( colour );
	298
	299	if (!(col->Ok())) {
	300	delete col;
	301	return (wxColour *) NULL;
	302	}
	303	Append( colour, col );
	304	return col;
	305	#endif
	306
	307	#ifdef __X__
	308	XColor xcolour;
	309
	310	#ifdef __WXMOTIF__
	311	Display *display = XtDisplay((Widget) wxTheApp->GetTopLevelWidget()) ;
	312	#endif
	313	#ifdef __XVIEW__
	314	Xv_Screen screen = xv_get(xview_server, SERVER_NTH_SCREEN, 0);
	315	Xv_opaque root_window = xv_get(screen, XV_ROOT);
	316	Display display = (Display )xv_get(root_window, XV_DISPLAY);
	317	#endif
	318
	319	/* MATTHEW: [4] Use wxGetMainColormap */
	320	if (!XParseColor(display, (Colormap) wxTheApp->GetMainColormap((WXDisplay*) display), colour,&xcolour))
	321	return NULL;
	322
	323	unsigned char r = (unsigned char)(xcolour.red >> 8);
	324	unsigned char g = (unsigned char)(xcolour.green >> 8);
	325	unsigned char b = (unsigned char)(xcolour.blue >> 8);
	326
	327	wxColour *col = new wxColour(r, g, b);
	328	Append(colour, col);
	329
	330	return col;
	331	#endif // __X__
	332	}
	333
	334	wxString wxColourDatabase::FindName (const wxColour& colour) const
	335	{
	336	wxString name;
	337
	338	unsigned char red = colour.Red ();
	339	unsigned char green = colour.Green ();
	340	unsigned char blue = colour.Blue ();
	341
	342	for (wxNode * node = First (); node; node = node->Next ())
	343	{
	344	wxColour col = (wxColour ) node->Data ();
	345
	346	if (col->Red () == red && col->Green () == green && col->Blue () == blue)
	347	{
	348	const wxChar *found = node->GetKeyString();
	349	if ( found )
	350	{
	351	name = found;
	352
	353	break;
	354	}
	355	}
	356	}
	357
	358	return name;
	359	}
	360
	361	void wxInitializeStockLists () {
	362	wxTheBrushList = new wxBrushList;
	363	wxThePenList = new wxPenList;
	364	wxTheFontList = new wxFontList;
	365	wxTheBitmapList = new wxBitmapList;
	366	}
	367
	368	void wxInitializeStockObjects ()
	369	{
	370	#ifdef __WXMOTIF__
	371	#endif
	372	#ifdef __X__
	373	// TODO
	374	// wxFontPool = new XFontPool;
	375	#endif
	376
	377	// why under MSW fonts shouldn't have the standard system size?
	378	/*
	379	#ifdef __WXMSW__
	380	static const int sizeFont = 10;
	381	#else
	382	#endif
	383	*/
	384	#if defined(__WXPM__) \|\| defined(__WXMAC__)
	385	static const int sizeFont = 12;
	386	wxNORMAL_FONT = new wxFont (sizeFont, wxMODERN, wxNORMAL, wxNORMAL);
	387	#else
	388	wxNORMAL_FONT = new wxFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
	389	static const int sizeFont = wxNORMAL_FONT->GetPointSize();
	390	#endif
	391
	392	wxSMALL_FONT = new wxFont (sizeFont - 2, wxSWISS, wxNORMAL, wxNORMAL);
	393	wxITALIC_FONT = new wxFont (sizeFont, wxROMAN, wxITALIC, wxNORMAL);
	394	wxSWISS_FONT = new wxFont (sizeFont, wxSWISS, wxNORMAL, wxNORMAL);
	395
	396	wxRED_PEN = new wxPen ("RED", 1, wxSOLID);
	397	wxCYAN_PEN = new wxPen ("CYAN", 1, wxSOLID);
	398	wxGREEN_PEN = new wxPen ("GREEN", 1, wxSOLID);
	399	wxBLACK_PEN = new wxPen ("BLACK", 1, wxSOLID);
	400	wxWHITE_PEN = new wxPen ("WHITE", 1, wxSOLID);
	401	wxTRANSPARENT_PEN = new wxPen ("BLACK", 1, wxTRANSPARENT);
	402	wxBLACK_DASHED_PEN = new wxPen ("BLACK", 1, wxSHORT_DASH);
	403	wxGREY_PEN = new wxPen ("GREY", 1, wxSOLID);
	404	wxMEDIUM_GREY_PEN = new wxPen ("MEDIUM GREY", 1, wxSOLID);
	405	wxLIGHT_GREY_PEN = new wxPen ("LIGHT GREY", 1, wxSOLID);
	406
	407	wxBLUE_BRUSH = new wxBrush ("BLUE", wxSOLID);
	408	wxGREEN_BRUSH = new wxBrush ("GREEN", wxSOLID);
	409	wxWHITE_BRUSH = new wxBrush ("WHITE", wxSOLID);
	410	wxBLACK_BRUSH = new wxBrush ("BLACK", wxSOLID);
	411	wxTRANSPARENT_BRUSH = new wxBrush ("BLACK", wxTRANSPARENT);
	412	wxCYAN_BRUSH = new wxBrush ("CYAN", wxSOLID);
	413	wxRED_BRUSH = new wxBrush ("RED", wxSOLID);
	414	wxGREY_BRUSH = new wxBrush ("GREY", wxSOLID);
	415	wxMEDIUM_GREY_BRUSH = new wxBrush ("MEDIUM GREY", wxSOLID);
	416	wxLIGHT_GREY_BRUSH = new wxBrush ("LIGHT GREY", wxSOLID);
	417
	418	wxBLACK = new wxColour ("BLACK");
	419	wxWHITE = new wxColour ("WHITE");
	420	wxRED = new wxColour ("RED");
	421	wxBLUE = new wxColour ("BLUE");
	422	wxGREEN = new wxColour ("GREEN");
	423	wxCYAN = new wxColour ("CYAN");
	424	wxLIGHT_GREY = new wxColour ("LIGHT GREY");
	425
	426	wxSTANDARD_CURSOR = new wxCursor (wxCURSOR_ARROW);
	427	wxHOURGLASS_CURSOR = new wxCursor (wxCURSOR_WAIT);
	428	wxCROSS_CURSOR = new wxCursor (wxCURSOR_CROSS);
	429	}
	430
	431	void wxDeleteStockObjects ()
	432	{
	433	wxDELETE(wxNORMAL_FONT);
	434	wxDELETE(wxSMALL_FONT);
	435	wxDELETE(wxITALIC_FONT);
	436	wxDELETE(wxSWISS_FONT);
	437
	438	wxDELETE(wxRED_PEN);
	439	wxDELETE(wxCYAN_PEN);
	440	wxDELETE(wxGREEN_PEN);
	441	wxDELETE(wxBLACK_PEN);
	442	wxDELETE(wxWHITE_PEN);
	443	wxDELETE(wxTRANSPARENT_PEN);
	444	wxDELETE(wxBLACK_DASHED_PEN);
	445	wxDELETE(wxGREY_PEN);
	446	wxDELETE(wxMEDIUM_GREY_PEN);
	447	wxDELETE(wxLIGHT_GREY_PEN);
	448
	449	wxDELETE(wxBLUE_BRUSH);
	450	wxDELETE(wxGREEN_BRUSH);
	451	wxDELETE(wxWHITE_BRUSH);
	452	wxDELETE(wxBLACK_BRUSH);
	453	wxDELETE(wxTRANSPARENT_BRUSH);
	454	wxDELETE(wxCYAN_BRUSH);
	455	wxDELETE(wxRED_BRUSH);
	456	wxDELETE(wxGREY_BRUSH);
	457	wxDELETE(wxMEDIUM_GREY_BRUSH);
	458	wxDELETE(wxLIGHT_GREY_BRUSH);
	459
	460	wxDELETE(wxBLACK);
	461	wxDELETE(wxWHITE);
	462	wxDELETE(wxRED);
	463	wxDELETE(wxBLUE);
	464	wxDELETE(wxGREEN);
	465	wxDELETE(wxCYAN);
	466	wxDELETE(wxLIGHT_GREY);
	467
	468	wxDELETE(wxSTANDARD_CURSOR);
	469	wxDELETE(wxHOURGLASS_CURSOR);
	470	wxDELETE(wxCROSS_CURSOR);
	471	}
	472
	473	void wxDeleteStockLists() {
	474	wxDELETE(wxTheBrushList);
	475	wxDELETE(wxThePenList);
	476	wxDELETE(wxTheFontList);
	477	wxDELETE(wxTheBitmapList);
	478	}
	479
	480	wxBitmapList::wxBitmapList ()
	481	{
	482	}
	483
	484	wxBitmapList::~wxBitmapList ()
	485	{
	486	wxNode *node = First ();
	487	while (node)
	488	{
	489	wxBitmap bitmap = (wxBitmap ) node->Data ();
	490	wxNode *next = node->Next ();
	491	if (bitmap->GetVisible())
	492	delete bitmap;
	493	node = next;
	494	}
	495	}
	496
	497	// Pen and Brush lists
	498	wxPenList::~wxPenList ()
	499	{
	500	wxNode *node = First ();
	501	while (node)
	502	{
	503	wxPen pen = (wxPen ) node->Data ();
	504	wxNode *next = node->Next ();
	505	if (pen->GetVisible())
	506	delete pen;
	507	node = next;
	508	}
	509	}
	510
	511	void wxPenList::AddPen (wxPen * pen)
	512	{
	513	Append (pen);
	514	}
	515
	516	void wxPenList::RemovePen (wxPen * pen)
	517	{
	518	DeleteObject (pen);
	519	}
	520
	521	wxPen *wxPenList::FindOrCreatePen (const wxColour& colour, int width, int style)
	522	{
	523	for (wxNode * node = First (); node; node = node->Next ())
	524	{
	525	wxPen each_pen = (wxPen ) node->Data ();
	526	if (each_pen &&
	527	each_pen->GetVisible() &&
	528	each_pen->GetWidth () == width &&
	529	each_pen->GetStyle () == style &&
	530	each_pen->GetColour ().Red () == colour.Red () &&
	531	each_pen->GetColour ().Green () == colour.Green () &&
	532	each_pen->GetColour ().Blue () == colour.Blue ())
	533	return each_pen;
	534	}
	535
	536	wxPen *pen = new wxPen (colour, width, style);
	537	if ( !pen->Ok() )
	538	{
	539	// don't save the invalid pens in the list
	540	delete pen;
	541
	542	return NULL;
	543	}
	544
	545	// Yes, we can return a pointer to this in a later FindOrCreatePen call,
	546	// because we created it within FindOrCreatePen. Safeguards against
	547	// returning a pointer to an automatic variable and hanging on to it
	548	// (dangling pointer).
	549	pen->SetVisible(TRUE);
	550
	551	return pen;
	552	}
	553
	554	wxBrushList::~wxBrushList ()
	555	{
	556	wxNode *node = First ();
	557	while (node)
	558	{
	559	wxBrush brush = (wxBrush ) node->Data ();
	560	wxNode *next = node->Next ();
	561	if (brush->GetVisible())
	562	delete brush;
	563	node = next;
	564	}
	565	}
	566
	567	void wxBrushList::AddBrush (wxBrush * brush)
	568	{
	569	Append (brush);
	570	}
	571
	572	wxBrush *wxBrushList::FindOrCreateBrush (const wxColour& colour, int style)
	573	{
	574	for (wxNode * node = First (); node; node = node->Next ())
	575	{
	576	wxBrush each_brush = (wxBrush ) node->Data ();
	577	if (each_brush &&
	578	each_brush->GetVisible() &&
	579	each_brush->GetStyle () == style &&
	580	each_brush->GetColour ().Red () == colour.Red () &&
	581	each_brush->GetColour ().Green () == colour.Green () &&
	582	each_brush->GetColour ().Blue () == colour.Blue ())
	583	return each_brush;
	584	}
	585
	586	wxBrush *brush = new wxBrush (colour, style);
	587
	588	if ( !brush->Ok() )
	589	{
	590	// don't put the brushes we failed to create into the list
	591	delete brush;
	592
	593	return NULL;
	594	}
	595
	596	brush->SetVisible(TRUE);
	597
	598	// Yes, we can return a pointer to this in a later FindOrCreateBrush call,
	599	// because we created it within FindOrCreateBrush. Safeguards against
	600	// returning a pointer to an automatic variable and hanging on to it
	601	// (dangling pointer).
	602	return brush;
	603	}
	604
	605	void wxBrushList::RemoveBrush (wxBrush * brush)
	606	{
	607	DeleteObject (brush);
	608	}
	609
	610	wxFontList::~wxFontList ()
	611	{
	612	wxNode *node = First ();
	613	while (node)
	614	{
	615	// Only delete objects that are 'visible', i.e.
	616	// that have been created using FindOrCreate...,
	617	// where the pointers are expected to be shared
	618	// (and therefore not deleted by any one part of an app).
	619	wxFont font = (wxFont ) node->Data ();
	620	wxNode *next = node->Next ();
	621	if (font->GetVisible())
	622	delete font;
	623	node = next;
	624	}
	625	}
	626
	627	void wxFontList::AddFont (wxFont * font)
	628	{
	629	Append (font);
	630	}
	631
	632	void wxFontList::RemoveFont (wxFont * font)
	633	{
	634	DeleteObject (font);
	635	}
	636
	637	wxFont *wxFontList::FindOrCreateFont(int pointSize,
	638	int family,
	639	int style,
	640	int weight,
	641	bool underline,
	642	const wxString& facename,
	643	wxFontEncoding encoding)
	644	{
	645	wxFont font = (wxFont )NULL;
	646	wxNode *node;
	647	for ( node = First(); node; node = node->Next() )
	648	{
	649	font = (wxFont *)node->Data();
	650	if ( font->GetVisible() &&
	651	font->Ok() &&
	652	font->GetPointSize () == pointSize &&
	653	font->GetStyle () == style &&
	654	font->GetWeight () == weight &&
	655	font->GetUnderlined () == underline )
	656	{
	657	int fontFamily = font->GetFamily();
	658
	659	#if defined(__WXGTK__)
	660	// under GTK the default family is wxSWISS, so looking for a font
	661	// with wxDEFAULT family should return a wxSWISS one instead of
	662	// creating a new one
	663	bool same = (fontFamily == family) \|\|
	664	(fontFamily == wxSWISS && family == wxDEFAULT);
	665	#else // !GTK
	666	// VZ: but why elsewhere do we require an exact match? mystery...
	667	bool same = fontFamily == family;
	668	#endif // GTK/!GTK
	669
	670	// empty facename matches anything at all: this is bad because
	671	// depending on which fonts are already created, we might get back
	672	// a different font if we create it with empty facename, but it is
	673	// still better than never matching anything in the cache at all
	674	// in this case
	675	if ( same && !!facename )
	676	{
	677	const wxString& fontFace = font->GetFaceName();
	678
	679	// empty facename matches everything
	680	same = !fontFace \|\| fontFace == facename;
	681	}
	682
	683	if ( same && (encoding != wxFONTENCODING_DEFAULT) )
	684	{
	685	// have to match the encoding too
	686	same = font->GetEncoding() == encoding;
	687	}
	688
	689	if ( same )
	690	{
	691	return font;
	692	}
	693	}
	694	}
	695
	696	if ( !node )
	697	{
	698	// font not found, create the new one
	699	font = new wxFont(pointSize, family, style, weight,
	700	underline, facename, encoding);
	701
	702	// and mark it as being cacheable
	703	font->SetVisible(TRUE);
	704	}
	705
	706	return font;
	707	}
	708
	709	void wxBitmapList::AddBitmap(wxBitmap *bitmap)
	710	{
	711	Append(bitmap);
	712	}
	713
	714	void wxBitmapList::RemoveBitmap(wxBitmap *bitmap)
	715	{
	716	DeleteObject(bitmap);
	717	}
	718
	719	wxSize wxGetDisplaySize()
	720	{
	721	int x, y;
	722	wxDisplaySize(& x, & y);
	723	return wxSize(x, y);
	724	}
	725
	726	wxRect wxGetClientDisplayRect()
	727	{
	728	int x, y, width, height;
	729	wxClientDisplayRect(&x, &y, &width, &height); // call plat-specific version
	730	return wxRect(x, y, width, height);
	731	}
	732
	733	wxSize wxGetDisplaySizeMM()
	734	{
	735	int x, y;
	736	wxDisplaySizeMM(& x, & y);
	737	return wxSize(x, y);
	738	}
	739
	740	wxResourceCache::~wxResourceCache ()
	741	{
	742	wxNode *node = First ();
	743	while (node) {
	744	wxObject item = (wxObject )node->Data();
	745	delete item;
	746
	747	node = node->Next ();
	748	}
	749	}
	750