// App.cc // Copyright (c) 2002 Henrik Kinnunen (fluxgen at linuxmail.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. #include "App.hh" #include "EventManager.hh" #include <cassert> #include <string> namespace FbTk { App *App::s_app = 0; App *App::instance() { if (s_app == 0) throw std::string("You must create an instance of FbTk::App first!"); return s_app; } App::App(const char *displayname):m_done(false), m_display(0) { if (s_app != 0) throw std::string("Can't create more than one instance of FbTk::App"); s_app = this; // this allows the use of std::string.c_str(), which returns // a blank string, rather than a null string, so we make them equivalent if (displayname != 0 && displayname[0] == '\0') displayname = 0; m_display = XOpenDisplay(displayname); } App::~App() { if (m_display != 0) { XCloseDisplay(m_display); m_display = 0; } s_app = 0; } void App::sync(bool discard) { XSync(display(), discard); } void App::eventLoop() { XEvent ev; while (!m_done) { XNextEvent(display(), &ev); EventManager::instance()->handleEvent(ev); } } void App::end() { m_done = true; //end loop in App::eventLoop } }; // end namespace FbTk