xmlres.cpp

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                                         wxART_MAKE_CLIENT_ID_FROM_STR(scl),
                                         size);
            if ( stockArt.Ok() )
                return stockArt;
        }
    }

    /* ...or load the bitmap from file: */
    wxString name = GetParamValue(param);
    if (name.IsEmpty()) return wxNullBitmap;
#if wxUSE_FILESYSTEM
    wxFSFile *fsfile = GetCurFileSystem().OpenFile(name);
    if (fsfile == NULL)
    {
        wxLogError(_("XRC resource: Cannot create bitmap from '%s'."), param.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);
    return wxBitmap(img);

}



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.IsEmpty())
        return GetNodeContent(m_node);
    else
        return GetNodeContent(GetParamNode(param));
}



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

    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 (m_instanceAsWindow)
            return wxDLG_UNIT(m_instanceAsWindow, 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;
        }
    }
    else 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)
{
    wxString s = GetParamValue(param);
    if (s.IsEmpty()) 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 (m_instanceAsWindow)
            return wxDLG_UNIT(m_instanceAsWindow, 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;
        }
    }
    else return sx;
}



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;

    long size = GetLong(wxT("size"), 12);

    wxString style = GetParamValue(wxT("style"));
    wxString weight = GetParamValue(wxT("weight"));
    int istyle = wxNORMAL, iweight = wxNORMAL;
    if (style == wxT("italic")) istyle = wxITALIC;
    else if (style == wxT("slant")) istyle = wxSLANT;
    if (weight == wxT("bold")) iweight = wxBOLD;
    else if (weight == wxT("light")) iweight = wxLIGHT;

    wxString family = GetParamValue(wxT("family"));
    int ifamily = wxDEFAULT;
         if (family == wxT("decorative")) ifamily = wxDECORATIVE;
    else if (family == wxT("roman")) ifamily = wxROMAN;
    else if (family == wxT("script")) ifamily = wxSCRIPT;
    else if (family == wxT("swiss")) ifamily = wxSWISS;
    else if (family == wxT("modern")) ifamily = wxMODERN;

    bool underlined = GetBool(wxT("underlined"), FALSE);

    wxString encoding = GetParamValue(wxT("encoding"));
    wxFontMapper mapper;
    wxFontEncoding enc = wxFONTENCODING_DEFAULT;
    if (!encoding.IsEmpty())
        enc = mapper.CharsetToEncoding(encoding);
    if (enc == wxFONTENCODING_SYSTEM)
        enc = wxFONTENCODING_DEFAULT;

    wxString faces = GetParamValue(wxT("face"));
    wxString facename = wxEmptyString;
    wxFontEnumerator enu;
    enu.EnumerateFacenames();
    wxStringTokenizer tk(faces, wxT(","));
    while (tk.HasMoreTokens())
    {
        int index = enu.GetFacenames()->Index(tk.GetNextToken(), FALSE);
        if (index != wxNOT_FOUND)
        {
            facename = (*enu.GetFacenames())[index];
            break;
        }
    }

    m_node = oldnode;

    wxFont font(size, ifamily, istyle, iweight, underlined, facename, enc);
    return font;
}


void wxXmlResourceHandler::SetupWindow(wxWindow *wnd)
{
    //FIXME : add cursor

    if (HasParam(wxT("exstyle")))
        wnd->SetExtraStyle(GetStyle(wxT("exstyle")));
    if (HasParam(wxT("bg")))
        wnd->SetBackgroundColour(GetColour(wxT("bg")));
    if (HasParam(wxT("fg")))
        wnd->SetForegroundColour(GetColour(wxT("fg")));
    if (GetBool(wxT("enabled"), 1) == 0)
        wnd->Enable(FALSE);
    if (GetBool(wxT("focused"), 0) == 1)
        wnd->SetFocus();
    if (GetBool(wxT("hidden"), 0) == 1)
        wnd->Show(FALSE);
#if wxUSE_TOOLTIPS
    if (HasParam(wxT("tooltip")))
        wnd->SetToolTip(GetText(wxT("tooltip")));
#endif
    if (HasParam(wxT("font")))
        wnd->SetFont(GetFont());
}


void wxXmlResourceHandler::CreateChildren(wxObject *parent, bool this_hnd_only)
{
    wxXmlNode *n = m_node->GetChildren();

    while (n)
    {
        if (n->GetType() == wxXML_ELEMENT_NODE &&
           (n->GetName() == wxT("object") || n->GetName() == wxT("object_ref")))
        {
            m_resource->CreateResFromNode2(n, parent, NULL,
                                           this_hnd_only ? this : NULL);
        }
        n = n->GetNext();
    }
}


void wxXmlResourceHandler::CreateChildrenPrivately(wxObject *parent, wxXmlNode *rootnode)
{
    wxXmlNode *root;
    if (rootnode == NULL) root = m_node; else root = rootnode;
    wxXmlNode *n = root->GetChildren();

    while (n)
    {
        if (n->GetType() == wxXML_ELEMENT_NODE && CanHandle(n))
        {
            CreateResource(n, parent, NULL);
        }
        n = n->GetNext();
    }
}







// --------------- XRCID implementation -----------------------------

#define XRCID_TABLE_SIZE     1024


struct XRCID_record
{
    int id;
    wxChar *key;
    XRCID_record *next;
};

static XRCID_record *XRCID_Records[XRCID_TABLE_SIZE] = {NULL};

static int XRCID_Lookup(const wxChar *str_id, int value_if_not_found = -2)
{
    static int XRCID_LastID = wxID_HIGHEST;

    int index = 0;

    for (const wxChar *c = str_id; *c != wxT('\0'); c++) index += (int)*c;
    index %= XRCID_TABLE_SIZE;

    XRCID_record *oldrec = NULL;
    int matchcnt = 0;
    for (XRCID_record *rec = XRCID_Records[index]; rec; rec = rec->next)
    {
        if (wxStrcmp(rec->key, str_id) == 0)
        {
            return rec->id;
        }
        matchcnt++;
        oldrec = rec;
    }

    XRCID_record **rec_var = (oldrec == NULL) ?
                              &XRCID_Records[index] : &oldrec->next;
    *rec_var = new XRCID_record;
    (*rec_var)->key = wxStrdup(str_id);
    (*rec_var)->next = NULL;

    wxChar *end;
    if (value_if_not_found != -2)
        (*rec_var)->id = value_if_not_found;
    else
    {
        int asint = wxStrtol(str_id, &end, 10);
        if (*str_id && *end == 0)
        {
            // if str_id was integer, keep it verbosely:
            (*rec_var)->id = asint;
        }
        else
        {
            (*rec_var)->id = ++XRCID_LastID;
        }
    }

    return (*rec_var)->id;
}

/*static*/ int wxXmlResource::GetXRCID(const wxChar *str_id)
{
    return XRCID_Lookup(str_id);
}


static void CleanXRCID_Record(XRCID_record *rec)
{
    if (rec)
    {
        CleanXRCID_Record(rec->next);
        free(rec->key);
        delete rec;
    }
}

static void CleanXRCID_Records()
{
    for (int i = 0; i < XRCID_TABLE_SIZE; i++)
    {
        CleanXRCID_Record(XRCID_Records[i]);
        XRCID_Records[i] = NULL;
    }
}

static void AddStdXRCID_Records()
{
#define stdID(id) XRCID_Lookup(wxT(#id), id)
    stdID(-1);
    stdID(wxID_OPEN); stdID(wxID_CLOSE); stdID(wxID_NEW);
    stdID(wxID_SAVE); stdID(wxID_SAVEAS); stdID(wxID_REVERT);
    stdID(wxID_EXIT); stdID(wxID_UNDO); stdID(wxID_REDO);
    stdID(wxID_HELP); stdID(wxID_PRINT); stdID(wxID_PRINT_SETUP);
    stdID(wxID_PREVIEW); stdID(wxID_ABOUT); stdID(wxID_HELP_CONTENTS);
    stdID(wxID_HELP_COMMANDS); stdID(wxID_HELP_PROCEDURES);
    stdID(wxID_CUT); stdID(wxID_COPY); stdID(wxID_PASTE);
    stdID(wxID_CLEAR); stdID(wxID_FIND); stdID(wxID_DUPLICATE);
    stdID(wxID_SELECTALL); stdID(wxID_OK); stdID(wxID_CANCEL);
    stdID(wxID_APPLY); stdID(wxID_YES); stdID(wxID_NO);
    stdID(wxID_STATIC); stdID(wxID_FORWARD); stdID(wxID_BACKWARD);
    stdID(wxID_DEFAULT); stdID(wxID_MORE); stdID(wxID_SETUP);
    stdID(wxID_RESET); stdID(wxID_HELP_CONTEXT);
    stdID(wxID_CLOSE_ALL);
#undef stdID
}





// --------------- module and globals -----------------------------

class wxXmlResourceModule: public wxModule
{
DECLARE_DYNAMIC_CLASS(wxXmlResourceModule)
public:
    wxXmlResourceModule() {}
    bool OnInit()
    {
        AddStdXRCID_Records();
        wxXmlResource::AddSubclassFactory(new wxXmlSubclassFactoryCXX);
        return TRUE;
    }
    void OnExit()
    {
        delete wxXmlResource::Set(NULL);
        CleanXRCID_Records();
    }
};

IMPLEMENT_DYNAMIC_CLASS(wxXmlResourceModule, wxModule)


// When wxXml is loaded dynamically after the application is already running
// then the built-in module system won't pick this one up.  Add it manually.
void wxXmlInitResourceModule()
{
    wxModule* module = new wxXmlResourceModule;
    module->Init();
    wxModule::RegisterModule(module);
}