106 lines
2.7 KiB
C++
106 lines
2.7 KiB
C++
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// -*- c++ -*-
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/* $Id$ */
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/* signalproxy.cc
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*
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* Copyright (C) 2002 The gtkmm Development Team
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <glib-object.h>
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#include <glibmm/exceptionhandler.h>
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#include <glibmm/object.h>
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#include <glibmm/signalproxy.h>
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namespace Glib
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{
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// SignalProxyBase implementation:
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SignalProxyBase::SignalProxyBase(Glib::ObjectBase* obj)
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:
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obj_ (obj)
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{}
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// SignalProxyNormal implementation:
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SignalProxyNormal::SignalProxyNormal(Glib::ObjectBase* obj, const SignalProxyInfo* info)
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:
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SignalProxyBase (obj),
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info_ (info)
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{}
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SignalProxyNormal::~SignalProxyNormal()
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{}
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sigc::slot_base&
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SignalProxyNormal::connect_(const sigc::slot_base& slot, bool after)
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{
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return connect_impl_(info_->callback, slot, after);
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}
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sigc::slot_base&
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SignalProxyNormal::connect_notify_(const sigc::slot_base& slot, bool after)
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{
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return connect_impl_(info_->notify_callback, slot, after);
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}
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sigc::slot_base&
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SignalProxyNormal::connect_impl_(GCallback callback, const sigc::slot_base& slot, bool after)
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{
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// create a proxy to hold our connection info
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SignalProxyConnectionNode *const pConnectionNode =
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new SignalProxyConnectionNode(slot, obj_->gobj());
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// connect it to glib
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// pConnectionNode will be passed in the data argument to the callback.
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pConnectionNode->connection_id_ = g_signal_connect_data(
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obj_->gobj(), info_->signal_name, callback, pConnectionNode,
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&SignalProxyConnectionNode::destroy_notify_handler,
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static_cast<GConnectFlags>((after) ? G_CONNECT_AFTER : 0));
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return pConnectionNode->slot_;
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}
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void SignalProxyNormal::emission_stop()
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{
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g_signal_stop_emission_by_name(obj_->gobj(), info_->signal_name);
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}
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// static
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void SignalProxyNormal::slot0_void_callback(GObject* self, void* data)
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{
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// Do not try to call a signal on a disassociated wrapper.
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if(Glib::ObjectBase::_get_current_wrapper(self))
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{
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try
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{
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if(sigc::slot_base *const slot = data_to_slot(data))
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(*static_cast<sigc::slot<void>*>(slot))();
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}
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catch(...)
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{
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Glib::exception_handlers_invoke();
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}
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}
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}
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} // namespace Glib
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