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// -*- c++ -*-
/* childpropertyproxy_base.cc
*
* Copyright 2014 The gtkmm Development Team
*
* 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 2.1 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <gtkmm/childpropertyproxy_base.h>
#include <gtkmm/container.h>
#include <gtk/gtk.h>
namespace Gtk
{
sigc::connection SignalProxyChildProperty::connect(const SlotType& sl)
{
// Create a proxy to hold our connection info
// This will be deleted by destroy_notify_handler.
Glib::PropertyProxyConnectionNode* pConnectionNode = new Glib::PropertyProxyConnectionNode(sl, obj_->gobj());
// connect it to gtk+
// pConnectionNode will be passed as the data argument to the callback.
// The callback will then call the virtual Object::property_change_notify() method,
// which will contain a switch/case statement which will examine the property name.
const Glib::ustring notify_signal_name = "child-notify::" + Glib::ustring(property_name_);
pConnectionNode->connection_id_ = g_signal_connect_data(obj_->gobj(),
notify_signal_name.c_str(), (GCallback)(&Glib::PropertyProxyConnectionNode::callback), pConnectionNode,
&Glib::PropertyProxyConnectionNode::destroy_notify_handler,
G_CONNECT_AFTER);
return sigc::connection(pConnectionNode->slot_);
}
ChildPropertyProxy_Base::ChildPropertyProxy_Base(Gtk::Container* parent, Gtk::Widget& child, const char* property_name)
: parent_(parent),
child_(child),
property_name_(property_name) {}
ChildPropertyProxy_Base::ChildPropertyProxy_Base(const ChildPropertyProxy_Base& other)
: parent_(other.parent_),
child_(other.child_),
property_name_(other.property_name_) {}
SignalProxyChildProperty ChildPropertyProxy_Base::signal_changed()
{
return SignalProxyChildProperty(&child_, property_name_);
}
void ChildPropertyProxy_Base::set_property_(const Glib::ValueBase& value)
{
gtk_container_child_set_property(parent_->gobj(), child_.gobj(), property_name_, value.gobj());
}
void ChildPropertyProxy_Base::get_property_(Glib::ValueBase& value) const
{
gtk_container_child_get_property(parent_->gobj(), child_.gobj(), property_name_, value.gobj());
}
void ChildPropertyProxy_Base::reset_property_()
{
// Get information about the parameter:
const GParamSpec *const pParamSpec =
gtk_container_class_find_child_property(G_OBJECT_GET_CLASS(parent_->gobj()), property_name_);
g_return_if_fail(pParamSpec != 0);
Glib::ValueBase value;
value.init(G_PARAM_SPEC_VALUE_TYPE(pParamSpec));
// An explicit reset is not needed, because ValueBase:init()
// has already initialized it to the default value for this type.
// value.reset();
set_property_(value);
}
} // namespace Gtk
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