+/* === S Y N F I G ========================================================= */
+/*! \file valuedescexport.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 "valuenodeadd.h"
+
+#include "canvasadd.h"
+#include "valuedescexport.h"
+#include "layerparamconnect.h"
+
+#include <synfigapp/canvasinterface.h>
+#include <synfig/valuenode_const.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::ValueDescExport);
+ACTION_SET_NAME(Action::ValueDescExport,"value_desc_export");
+ACTION_SET_LOCAL_NAME(Action::ValueDescExport,"Export");
+ACTION_SET_TASK(Action::ValueDescExport,"export");
+ACTION_SET_CATEGORY(Action::ValueDescExport,Action::CATEGORY_VALUEDESC);
+ACTION_SET_PRIORITY(Action::ValueDescExport,0);
+ACTION_SET_VERSION(Action::ValueDescExport,"0.0");
+ACTION_SET_CVS_ID(Action::ValueDescExport,"$Id$");
+
+/* === 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::ValueDescExport::ValueDescExport()
+{
+}
+
+Action::ParamVocab
+Action::ValueDescExport::get_param_vocab()
+{
+ ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
+
+ ret.push_back(ParamDesc("value_desc",Param::TYPE_VALUEDESC)
+ .set_local_name(_("ValueDesc"))
+ );
+
+ ret.push_back(ParamDesc("name",Param::TYPE_STRING)
+ .set_local_name(_("Name"))
+ .set_desc(_("The name that you want this value to be exported as"))
+ .set_user_supplied()
+ );
+
+ return ret;
+}
+
+bool
+Action::ValueDescExport::is_candidate(const ParamList &x)
+{
+ if(candidate_check(get_param_vocab(),x))
+ {
+ ValueDesc value_desc=x.find("value_desc")->second.get_value_desc();
+ if(!value_desc || value_desc.parent_is_canvas() || (value_desc.is_value_node() && value_desc.get_value_node()->is_exported()))
+ return false;
+ return true;
+ }
+ return false;
+}
+
+bool
+Action::ValueDescExport::set_param(const synfig::String& param_name, const Action::Param ¶m)
+{
+ if(param_name=="value_desc" && param.get_type()==Param::TYPE_VALUEDESC)
+ {
+ value_desc=param.get_value_desc();
+
+ return true;
+ }
+
+ if(param_name=="name" && param.get_type()==Param::TYPE_STRING)
+ {
+ name=param.get_string();
+
+ return true;
+ }
+
+ return Action::CanvasSpecific::set_param(param_name,param);
+}
+
+bool
+Action::ValueDescExport::is_ready()const
+{
+ if(!value_desc || name.empty())
+ return false;
+ return Action::CanvasSpecific::is_ready();
+}
+
+void
+Action::ValueDescExport::prepare()
+{
+ clear();
+
+ ValueNode::Handle value_node;
+
+ if(value_desc.get_value_type()==ValueBase::TYPE_CANVAS)
+ {
+ if(!value_desc.is_const())
+ throw Error(_("Can only export Canvas when used as constant parameter"));
+ Canvas::Handle canvas(value_desc.get_value().get(Canvas::Handle()));
+
+ Action::Handle action(CanvasAdd::create());
+
+ action->set_param("canvas",get_canvas());
+ action->set_param("canvas_interface",get_canvas_interface());
+ action->set_param("src",canvas);
+ action->set_param("id",name);
+
+ assert(action->is_ready());
+ if(!action->is_ready())
+ throw Error(Error::TYPE_NOTREADY);
+
+ add_action_front(action);
+
+ return;
+ }
+
+
+ if(value_desc.is_value_node())
+ {
+ if(value_desc.get_value_node()->is_exported())
+ throw Error(_("ValueBase is already exported"));
+
+ value_node=value_desc.get_value_node();
+ }
+ else
+ {
+ if(!value_desc.parent_is_layer_param())
+ throw Error(_("Unable to export parameter. (Bug?)"));
+
+ value_node=ValueNode_Const::create(value_desc.get_value());
+
+ Action::Handle action(LayerParamConnect::create());
+
+ action->set_param("canvas",get_canvas());
+ action->set_param("canvas_interface",get_canvas_interface());
+ action->set_param("layer",value_desc.get_layer());
+ action->set_param("param",value_desc.get_param_name());
+ action->set_param("value_node",value_node);
+
+ assert(action->is_ready());
+ if(!action->is_ready())
+ throw Error(Error::TYPE_NOTREADY);
+
+ add_action_front(action);
+ }
+
+ Action::Handle action(ValueNodeAdd::create());
+
+ action->set_param("canvas",get_canvas());
+ action->set_param("canvas_interface",get_canvas_interface());
+ action->set_param("new",value_node);
+ action->set_param("name",name);
+
+ assert(action->is_ready());
+ if(!action->is_ready())
+ throw Error(Error::TYPE_NOTREADY);
+
+ add_action_front(action);
+}