1 // XrmDatabaseHelper.hh 2 // Copyright (c) 2002 Henrik Kinnunen (fluxgen at fluxbox dot org) 3 // 4 // Permission is hereby granted, free of charge, to any person obtaining a 5 // copy of this software and associated documentation files (the "Software"), 6 // to deal in the Software without restriction, including without limitation 7 // the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 // and/or sell copies of the Software, and to permit persons to whom the 9 // Software is furnished to do so, subject to the following conditions: 10 // 11 // The above copyright notice and this permission notice shall be included in 12 // all copies or substantial portions of the Software. 13 // 14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 19 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 20 // DEALINGS IN THE SOFTWARE. 21 22 #ifndef FBTK_XRMDATABASEHELPER_HH 23 #define FBTK_XRMDATABASEHELPER_HH 24 25 #include <X11/Xresource.h> 26 27 /** 28 This is a helper for XrmDatabase 29 when database goes out of scope 30 the XrmDatabase variable will be destroyed. 31 */ 32 namespace FbTk { 33 34 class XrmDatabaseHelper 35 { 36 public: XrmDatabaseHelper(char const * filename=0)37 XrmDatabaseHelper(char const * filename=0) 38 : m_database(0) 39 { if (filename != 0) load(filename); } 40 ~XrmDatabaseHelper()41 ~XrmDatabaseHelper() { 42 close(); 43 } 44 45 /// assignment operator operator =(const XrmDatabase & database)46 XrmDatabaseHelper& operator=(const XrmDatabase& database) { 47 if (database == m_database) // assignment to self 48 return *this; 49 50 if (m_database!=0) 51 close(); 52 m_database = database; 53 return *this; 54 } load(const char * filename)55 bool load(const char *filename) { 56 if (filename == 0) 57 return false; 58 XrmDatabase db = XrmGetFileDatabase(filename); 59 if (db == 0) 60 return false; 61 close(); // close old database 62 m_database = db; // set new and return true 63 return true; 64 } close()65 void close() { 66 if (m_database != 0) { 67 XrmDestroyDatabase(m_database); 68 m_database = 0; 69 } 70 } 71 operator ==(const XrmDatabase & database) const72 bool operator == (const XrmDatabase& database) const { return m_database == database; } operator *()73 XrmDatabase & operator*() { return m_database; } 74 75 private: 76 XrmDatabase m_database; 77 }; 78 79 } // namespace FbTk 80 81 #endif // FBTK_XRMDATABASEHELPER_HH 82