xmlres.cpp

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            if ( *(++dt) == amp_char )
                str2 << amp_char;
            else
                str2 << wxT('&') << *dt;
        }
        // Remap \n to CR, \r to LF, \t to TAB, \\ to \:
        else if (*dt == wxT('\\'))
            switch (*(++dt))
            {
                case wxT('n'):
                    str2 << wxT('\n');
                    break;

                case wxT('t'):
                    str2 << wxT('\t');
                    break;

                case wxT('r'):
                    str2 << wxT('\r');
                    break;

                case wxT('\\') :
                    // "\\" wasn't translated to "\" prior to 2.5.3.0:
                    if (m_resource->CompareVersion(2,5,3,0) >= 0)
                    {
                        str2 << wxT('\\');
                        break;
                    }
                    // else fall-through to default: branch below

                default:
                    str2 << wxT('\\') << *dt;
                    break;
            }
        else str2 << *dt;
    }

    if (m_resource->GetFlags() & wxXRC_USE_LOCALE)
    {
        if (translate && parNode &&
            parNode->GetPropVal(wxT("translate"), wxEmptyString) != wxT("0"))
        {
            return wxGetTranslation(str2);
        }
        else
        {
#if wxUSE_UNICODE
            return str2;
#else
            // The string is internally stored as UTF-8, we have to convert
            // it into system's default encoding so that it can be displayed:
            return wxString(str2.mb_str(wxConvUTF8), wxConvLocal);
#endif
        }
    }

    // If wxXRC_USE_LOCALE is not set, then the string is already in
    // system's default encoding in ANSI build, so we don't have to
    // do anything special here.
    return str2;
}



long wxXmlResourceHandler::GetLong(const wxString& param, long defaultv)
{
    long value;
    wxString str1 = GetParamValue(param);

    if (!str1.ToLong(&value))
        value = defaultv;

    return value;
}

float wxXmlResourceHandler::GetFloat(const wxString& param, float defaultv)
{
    double value;
    wxString str1 = GetParamValue(param);

#ifndef __WXWINCE__
    const char *prevlocale = setlocale(LC_NUMERIC, "C");
#endif

    if (!str1.ToDouble(&value))
        value = defaultv;

#ifndef __WXWINCE__
    setlocale(LC_NUMERIC, prevlocale);
#endif

    return value;
}


int wxXmlResourceHandler::GetID()
{
    return wxXmlResource::GetXRCID(GetName());
}



wxString wxXmlResourceHandler::GetName()
{
    return m_node->GetPropVal(wxT("name"), wxT("-1"));
}



bool wxXmlResourceHandler::GetBool(const wxString& param, bool defaultv)
{
    wxString v = GetParamValue(param);
    v.MakeLower();
    if (!v) return defaultv;

    return (v == wxT("1"));
}


static wxColour GetSystemColour(const wxString& name)
{
    if (!name.empty())
    {
        #define SYSCLR(clr) \
            if (name == _T(#clr)) return wxSystemSettings::GetColour(clr);
        SYSCLR(wxSYS_COLOUR_SCROLLBAR)
        SYSCLR(wxSYS_COLOUR_BACKGROUND)
        SYSCLR(wxSYS_COLOUR_DESKTOP)
        SYSCLR(wxSYS_COLOUR_ACTIVECAPTION)
        SYSCLR(wxSYS_COLOUR_INACTIVECAPTION)
        SYSCLR(wxSYS_COLOUR_MENU)
        SYSCLR(wxSYS_COLOUR_WINDOW)
        SYSCLR(wxSYS_COLOUR_WINDOWFRAME)
        SYSCLR(wxSYS_COLOUR_MENUTEXT)
        SYSCLR(wxSYS_COLOUR_WINDOWTEXT)
        SYSCLR(wxSYS_COLOUR_CAPTIONTEXT)
        SYSCLR(wxSYS_COLOUR_ACTIVEBORDER)
        SYSCLR(wxSYS_COLOUR_INACTIVEBORDER)
        SYSCLR(wxSYS_COLOUR_APPWORKSPACE)
        SYSCLR(wxSYS_COLOUR_HIGHLIGHT)
        SYSCLR(wxSYS_COLOUR_HIGHLIGHTTEXT)
        SYSCLR(wxSYS_COLOUR_BTNFACE)
        SYSCLR(wxSYS_COLOUR_3DFACE)
        SYSCLR(wxSYS_COLOUR_BTNSHADOW)
        SYSCLR(wxSYS_COLOUR_3DSHADOW)
        SYSCLR(wxSYS_COLOUR_GRAYTEXT)
        SYSCLR(wxSYS_COLOUR_BTNTEXT)
        SYSCLR(wxSYS_COLOUR_INACTIVECAPTIONTEXT)
        SYSCLR(wxSYS_COLOUR_BTNHIGHLIGHT)
        SYSCLR(wxSYS_COLOUR_BTNHILIGHT)
        SYSCLR(wxSYS_COLOUR_3DHIGHLIGHT)
        SYSCLR(wxSYS_COLOUR_3DHILIGHT)
        SYSCLR(wxSYS_COLOUR_3DDKSHADOW)
        SYSCLR(wxSYS_COLOUR_3DLIGHT)
        SYSCLR(wxSYS_COLOUR_INFOTEXT)
        SYSCLR(wxSYS_COLOUR_INFOBK)
        SYSCLR(wxSYS_COLOUR_LISTBOX)
        SYSCLR(wxSYS_COLOUR_HOTLIGHT)
        SYSCLR(wxSYS_COLOUR_GRADIENTACTIVECAPTION)
        SYSCLR(wxSYS_COLOUR_GRADIENTINACTIVECAPTION)
        SYSCLR(wxSYS_COLOUR_MENUHILIGHT)
        SYSCLR(wxSYS_COLOUR_MENUBAR)
        #undef SYSCLR
    }

    return wxNullColour;
}

wxColour wxXmlResourceHandler::GetColour(const wxString& param)
{
    wxString v = GetParamValue(param);

    // find colour using HTML syntax (#RRGGBB)
    unsigned long tmp = 0;

    if (v.Length() != 7 || v[0u] != wxT('#') ||
        wxSscanf(v.c_str(), wxT("#%lX"), &tmp) != 1)
    {
        // the colour doesn't use #RRGGBB format, check if it is symbolic
        // colour name:
        wxColour clr = GetSystemColour(v);
        if (clr.Ok())
            return clr;

        wxLogError(_("XRC resource: Incorrect colour specification '%s' for property '%s'."),
                   v.c_str(), param.c_str());
        return wxNullColour;
    }

    return wxColour((unsigned char) ((tmp & 0xFF0000) >> 16) ,
                    (unsigned char) ((tmp & 0x00FF00) >> 8),
                    (unsigned char) ((tmp & 0x0000FF)));
}



wxBitmap wxXmlResourceHandler::GetBitmap(const wxString& param,
                                         const wxArtClient& defaultArtClient,
                                         wxSize size)
{
    /* If the bitmap is specified as stock item, query wxArtProvider for it: */
    wxXmlNode *bmpNode = GetParamNode(param);
    if ( bmpNode )
    {
        wxString sid = bmpNode->GetPropVal(wxT("stock_id"), wxEmptyString);
        if ( !sid.empty() )
        {
            wxString scl = bmpNode->GetPropVal(wxT("stock_client"), wxEmptyString);
            if (scl.empty())
                scl = defaultArtClient;
            else
                scl = wxART_MAKE_CLIENT_ID_FROM_STR(scl);

            wxBitmap stockArt =
                wxArtProvider::GetBitmap(wxART_MAKE_ART_ID_FROM_STR(sid),
                                         scl, size);
            if ( stockArt.Ok() )
                return stockArt;
        }
    }

    /* ...or load the bitmap from file: */
    wxString name = GetParamValue(param);
    if (name.empty()) return wxNullBitmap;
#if wxUSE_FILESYSTEM
    wxFSFile *fsfile = GetCurFileSystem().OpenFile(name);
    if (fsfile == NULL)
    {
        wxLogError(_("XRC resource: Cannot create bitmap from '%s'."),
                   name.c_str());
        return wxNullBitmap;
    }
    wxImage img(*(fsfile->GetStream()));
    delete fsfile;
#else
    wxImage img(GetParamValue(wxT("bitmap")));
#endif

    if (!img.Ok())
    {
        wxLogError(_("XRC resource: Cannot create bitmap from '%s'."),
                   param.c_str());
        return wxNullBitmap;
    }
    if (!(size == wxDefaultSize)) img.Rescale(size.x, size.y);
#if !defined(__WXMSW__) || wxUSE_WXDIB
    return wxBitmap(img);
#else
    return wxBitmap();
#endif
}



wxIcon wxXmlResourceHandler::GetIcon(const wxString& param,
                                     const wxArtClient& defaultArtClient,
                                     wxSize size)
{
    wxIcon icon;
    icon.CopyFromBitmap(GetBitmap(param, defaultArtClient, size));
    return icon;
}



wxXmlNode *wxXmlResourceHandler::GetParamNode(const wxString& param)
{
    wxCHECK_MSG(m_node, NULL, wxT("You can't access handler data before it was initialized!"));

    wxXmlNode *n = m_node->GetChildren();

    while (n)
    {
        if (n->GetType() == wxXML_ELEMENT_NODE && n->GetName() == param)
            return n;
        n = n->GetNext();
    }
    return NULL;
}


wxString wxXmlResourceHandler::GetNodeContent(wxXmlNode *node)
{
    wxXmlNode *n = node;
    if (n == NULL) return wxEmptyString;
    n = n->GetChildren();

    while (n)
    {
        if (n->GetType() == wxXML_TEXT_NODE ||
            n->GetType() == wxXML_CDATA_SECTION_NODE)
            return n->GetContent();
        n = n->GetNext();
    }
    return wxEmptyString;
}



wxString wxXmlResourceHandler::GetParamValue(const wxString& param)
{
    if (param.empty())
        return GetNodeContent(m_node);
    else
        return GetNodeContent(GetParamNode(param));
}



wxSize wxXmlResourceHandler::GetSize(const wxString& param,
                                     wxWindow *windowToUse)
{
    wxString s = GetParamValue(param);
    if (s.empty()) s = wxT("-1,-1");
    bool is_dlg;
    long sx, sy = 0;

    is_dlg = s[s.Length()-1] == wxT('d');
    if (is_dlg) s.RemoveLast();

    if (!s.BeforeFirst(wxT(',')).ToLong(&sx) ||
        !s.AfterLast(wxT(',')).ToLong(&sy))
    {
        wxLogError(_("Cannot parse coordinates from '%s'."), s.c_str());
        return wxDefaultSize;
    }

    if (is_dlg)
    {
        if (windowToUse)
        {
            return wxDLG_UNIT(windowToUse, wxSize(sx, sy));
        }
        else if (m_parentAsWindow)
        {
            return wxDLG_UNIT(m_parentAsWindow, wxSize(sx, sy));
        }
        else
        {
            wxLogError(_("Cannot convert dialog units: dialog unknown."));
            return wxDefaultSize;
        }
    }

    return wxSize(sx, sy);
}



wxPoint wxXmlResourceHandler::GetPosition(const wxString& param)
{
    wxSize sz = GetSize(param);
    return wxPoint(sz.x, sz.y);
}



wxCoord wxXmlResourceHandler::GetDimension(const wxString& param,
                                           wxCoord defaultv,
                                           wxWindow *windowToUse)
{
    wxString s = GetParamValue(param);
    if (s.empty()) return defaultv;
    bool is_dlg;
    long sx;

    is_dlg = s[s.Length()-1] == wxT('d');
    if (is_dlg) s.RemoveLast();

    if (!s.ToLong(&sx))
    {
        wxLogError(_("Cannot parse dimension from '%s'."), s.c_str());
        return defaultv;
    }

    if (is_dlg)
    {
        if (windowToUse)
        {
            return wxDLG_UNIT(windowToUse, wxSize(sx, 0)).x;
        }
        else if (m_parentAsWindow)
        {
            return wxDLG_UNIT(m_parentAsWindow, wxSize(sx, 0)).x;
        }
        else
        {
            wxLogError(_("Cannot convert dialog units: dialog unknown."));
            return defaultv;
        }
    }

    return sx;
}


// Get system font index using indexname
static wxFont GetSystemFont(const wxString& name)
{
    if (!name.empty())
    {
        #define SYSFNT(fnt) \
            if (name == _T(#fnt)) return wxSystemSettings::GetFont(fnt);
        SYSFNT(wxSYS_OEM_FIXED_FONT)
        SYSFNT(wxSYS_ANSI_FIXED_FONT)
        SYSFNT(wxSYS_ANSI_VAR_FONT)
        SYSFNT(wxSYS_SYSTEM_FONT)
        SYSFNT(wxSYS_DEVICE_DEFAULT_FONT)
        SYSFNT(wxSYS_DEFAULT_PALETTE)
        SYSFNT(wxSYS_SYSTEM_FIXED_FONT)
        SYSFNT(wxSYS_DEFAULT_GUI_FONT)
        #undef SYSFNT
    }

    return wxNullFont;
}

wxFont wxXmlResourceHandler::GetFont(const wxString& param)
{
    wxXmlNode *font_node = GetParamNode(param);
    if (font_node == NULL)
    {
        wxLogError(_("Cannot find font node '%s'."), param.c_str());
        return wxNullFont;
    }

    wxXmlNode *oldnode = m_node;
    m_node = font_node;