// 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. #ifndef FBTK_XRMDATABASEHELPER_HH #define FBTK_XRMDATABASEHELPER_HH #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