diff options
Diffstat (limited to 'tdegtk/tdegtk-hooks.cpp')
-rw-r--r-- | tdegtk/tdegtk-hooks.cpp | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/tdegtk/tdegtk-hooks.cpp b/tdegtk/tdegtk-hooks.cpp new file mode 100644 index 0000000..dbb291f --- /dev/null +++ b/tdegtk/tdegtk-hooks.cpp @@ -0,0 +1,100 @@ +/* +* this file was largely taken from the oxygen gtk engine +* Copyright (c) 2010 Hugo Pereira Da Costa <hugo@oxygen-icons.org> +* Copyright (c) 2010 Ruslan Kabatsayev <b7.10110111@gmail.com> +* +* This library is free software; you can redistribute it and/or +* modify it under the terms of the GNU Lesser General Public +* License as published by the Free Software Foundation; either +* version 2 of the License, or( at your option ) any later version. +* +* This library is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +* Lesser General Public License for more details. +* +* You should have received a copy of the GNU Lesser General Public +* License along with this library; if not, write to the Free +* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, +* MA 02110-1301, USA. +*/ + +#include "tdegtk-hooks.h" +#include "../config.h" + +#include <cassert> +#include <iostream> + + #if TDEGTK_DEBUG + static int counter( 0 ); + #endif + + //__________________________________________________________________ + bool Hook::connect( const std::string& signal, GType typeId, GSignalEmissionHook hookFunction, gpointer data ) + { + // make sure that signal is not already connected + assert( _signalId == 0 && _hookId == 0 ); + + // check type id + if( !g_type_class_peek( typeId ) ) + { + + #if TDEGTK_DEBUG + std::cerr << "Oxygen::Hook::connect - typeId " << g_type_name(typeId) << " not yet installed" << std::endl; + #endif + + g_type_class_ref( typeId ); + + } + + // store signal id + _signalId = g_signal_lookup( signal.c_str(), typeId ); + if( !_signalId ) + { + + #if TDEGTK_DEBUG + std::cerr << "Oxygen::Hook::connect - signal " << signal << " not installed." << std::endl; + #endif + + return false; + + } + + // store attributes and create connection + _hookId = g_signal_add_emission_hook( + _signalId, + (GQuark)0L, + hookFunction, + data, 0L); + + #if TDEGTK_DEBUG + ++counter; + std::cerr << "Oxygen::Hook::connect - hook: " << _hookId << " counter: " << counter << std::endl; + #endif + + return true; + + } + + //____________________________________________________________________ + void Hook::disconnect( void ) + { + + // disconnect signal + if( _signalId > 0 && _hookId > 0 ) + { + + #if TDEGTK_DEBUG + --counter; + std::cerr << "Oxygen::Hook::disconnect - hook: " << _hookId << " counter: " << counter << std::endl; + #endif + + g_signal_remove_emission_hook( _signalId, _hookId ); + + } + + _signalId = 0; + _hookId = 0; + + } + |