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// XrmDatabaseHelper.hh
// Copyright (c) 2002 Henrik Kinnunen (fluxgen at fluxbox dot org)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
// $Id$
#ifndef FBTK_XRMDATABASEHELPER_HH
#define FBTK_XRMDATABASEHELPER_HH
#include <X11/Xlib.h>
#include <X11/Xresource.h>
/**
This is a helper for XrmDatabase
when database goes out of scope
the XrmDatabase variable will be destroyed.
*/
namespace FbTk {
class XrmDatabaseHelper
{
public:
XrmDatabaseHelper(char const * filename=0)
: m_database(0)
{ if (filename != 0) load(filename); }
~XrmDatabaseHelper() {
close();
}
/// assignment operator
XrmDatabaseHelper& operator=(const XrmDatabase& database) {
if (database == m_database) // assignment to self
return *this;
if (m_database!=0)
close();
m_database = database;
return *this;
}
bool load(const char *filename) {
if (filename == 0)
return false;
XrmDatabase db = XrmGetFileDatabase(filename);
if (db == 0)
return false;
close(); // close old database
m_database = db; // set new and return true
return true;
}
void close() {
if (m_database != 0) {
XrmDestroyDatabase(m_database);
m_database = 0;
}
}
bool operator == (const XrmDatabase& database) { return m_database == database; }
XrmDatabase & operator*() { return m_database; }
private:
XrmDatabase m_database;
};
} // namespace FbTk
#endif // FBTK_XRMDATABASEHELPER_HH
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