+/* === S Y N F I G ========================================================= */
+/*! \file valuenodelinkdisconnect.cpp
+** \brief Template File
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**
+** This package is free software; you can redistribute it and/or
+** modify it under the terms of the GNU General Public License as
+** published by the Free Software Foundation; either version 2 of
+** the License, or (at your option) any later version.
+**
+** This package 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
+** General Public License for more details.
+** \endlegal
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+# include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "valuenodelinkdisconnect.h"
+#include <synfigapp/canvasinterface.h>
+#include <synfig/valuenode_const.h>
+
+#include <synfigapp/general.h>
+
+#endif
+
+using namespace std;
+using namespace etl;
+using namespace synfig;
+using namespace synfigapp;
+using namespace Action;
+
+/* === M A C R O S ========================================================= */
+
+ACTION_INIT(Action::ValueNodeLinkDisconnect);
+ACTION_SET_NAME(Action::ValueNodeLinkDisconnect,"value_node_link_disconnect");
+ACTION_SET_LOCAL_NAME(Action::ValueNodeLinkDisconnect,N_("Disconnect ValueNode Link"));
+ACTION_SET_TASK(Action::ValueNodeLinkDisconnect,"disconnect");
+ACTION_SET_CATEGORY(Action::ValueNodeLinkDisconnect,Action::CATEGORY_VALUENODE);
+ACTION_SET_PRIORITY(Action::ValueNodeLinkDisconnect,0);
+ACTION_SET_VERSION(Action::ValueNodeLinkDisconnect,"0.0");
+ACTION_SET_CVS_ID(Action::ValueNodeLinkDisconnect,"$Id$");
+
+/* === G L O B A L S ======================================================= */
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+Action::ValueNodeLinkDisconnect::ValueNodeLinkDisconnect():
+ index(-1), // Initially set it to negative one so that we know when it has changed
+ time(0)
+{
+}
+
+Action::ParamVocab
+Action::ValueNodeLinkDisconnect::get_param_vocab()
+{
+ ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
+
+ ret.push_back(ParamDesc("parent_value_node",Param::TYPE_VALUENODE)
+ .set_local_name(_("Parent ValueNode"))
+ );
+
+ ret.push_back(ParamDesc("index",Param::TYPE_INTEGER)
+ .set_local_name(_("Index"))
+ );
+
+ ret.push_back(ParamDesc("time",Param::TYPE_TIME)
+ .set_local_name(_("Time"))
+ .set_optional()
+ );
+
+ return ret;
+}
+
+bool
+Action::ValueNodeLinkDisconnect::is_candidate(const ParamList &x)
+{
+ return candidate_check(get_param_vocab(),x);
+}
+
+bool
+Action::ValueNodeLinkDisconnect::set_param(const synfig::String& name, const Action::Param ¶m)
+{
+ if(name=="parent_value_node" && param.get_type()==Param::TYPE_VALUENODE)
+ {
+ parent_value_node=LinkableValueNode::Handle::cast_dynamic(param.get_value_node());
+
+ return static_cast<bool>(parent_value_node);
+ }
+
+ if(name=="index" && param.get_type()==Param::TYPE_INTEGER)
+ {
+ index=param.get_integer();
+
+ return true;
+ }
+
+ if(name=="time" && param.get_type()==Param::TYPE_TIME)
+ {
+ time=param.get_time();
+
+ return true;
+ }
+
+ return Action::CanvasSpecific::set_param(name,param);
+}
+
+bool
+Action::ValueNodeLinkDisconnect::is_ready()const
+{
+ if(!parent_value_node || index==-1)
+ return false;
+ return Action::CanvasSpecific::is_ready();
+}
+
+void
+Action::ValueNodeLinkDisconnect::perform()
+{
+ if(parent_value_node->link_count()<=index)
+ throw Error(_("Bad index, too big. LinkCount=%d, Index=%d"),parent_value_node->link_count(),index);
+
+ old_value_node=parent_value_node->get_link(index);
+
+ if(!parent_value_node->set_link(index,ValueNode_Const::create((*old_value_node)(time))))
+ throw Error(_("Parent would not accept link"));
+
+ /*
+ if(get_canvas()->get_time()!=time)
+ set_dirty(true);
+ else
+ set_dirty(false);
+
+ if(get_canvas_interface())
+ {
+ get_canvas_interface()->signal_value_node_changed()(parent_value_node);
+ }
+ */
+}
+
+void
+Action::ValueNodeLinkDisconnect::undo()
+{
+ if(parent_value_node->link_count()<=index)
+ throw Error(_("Bad index, too big. LinkCount=%d, Index=%d"),parent_value_node->link_count(),index);
+
+ if(!parent_value_node->set_link(index,old_value_node))
+ throw Error(_("Parent would not accept old link"));
+
+ /*if(get_canvas()->get_time()!=time)
+ set_dirty(true);
+ else
+ set_dirty(false);
+
+ if(get_canvas_interface())
+ {
+ get_canvas_interface()->signal_value_node_changed()(parent_value_node);
+ }*/
+}