+/* === S Y N F I G ========================================================= */
+/*! \file layerparamunsetstatic.cpp
+** \brief Template File
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+** Copyright (c) 2010 Carlos López
+**
+** 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 "layerparamunsetstatic.h"
+#include <synfigapp/canvasinterface.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::LayerParamUnSetStatic);
+ACTION_SET_NAME(Action::LayerParamUnSetStatic,"LayerParamUnSetStatic");
+ACTION_SET_LOCAL_NAME(Action::LayerParamUnSetStatic,N_("UnSet Layer Parameter Static"));
+ACTION_SET_TASK(Action::LayerParamUnSetStatic,"unsetstatic");
+ACTION_SET_CATEGORY(Action::LayerParamUnSetStatic,Action::CATEGORY_VALUEDESC);
+ACTION_SET_PRIORITY(Action::LayerParamUnSetStatic,0);
+ACTION_SET_VERSION(Action::LayerParamUnSetStatic,"0.0");
+ACTION_SET_CVS_ID(Action::LayerParamUnSetStatic,"$Id$");
+
+/* === 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::LayerParamUnSetStatic::LayerParamUnSetStatic()
+{
+}
+
+Action::ParamVocab
+Action::LayerParamUnSetStatic::get_param_vocab()
+{
+ ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
+
+ ret.push_back(ParamDesc("value_desc",Param::TYPE_VALUEDESC)
+ .set_local_name(_("Value Desc"))
+ );
+
+ return ret;
+}
+
+bool
+Action::LayerParamUnSetStatic::is_candidate(const ParamList &x)
+{
+ if(!candidate_check(get_param_vocab(),x))
+ return false;
+
+ ValueDesc value_desc(x.find("value_desc")->second.get_value_desc());
+
+ if(!value_desc.parent_is_layer_param())
+ return false;
+
+ synfig::ValueBase parameter;
+ synfig::Layer::Handle _layer;
+ synfig::String _param_name;
+ _layer = value_desc.get_layer();
+ _param_name = value_desc.get_param_name();
+
+ if(!_layer || _param_name.empty())
+ return false;
+
+ //!Check that the parameter is not Value Node (Const, Animated or Linkable)
+ if(_layer->dynamic_param_list().count(_param_name))
+ return false;
+
+ //! Retrieves the current parameter
+ parameter = _layer->get_param(_param_name);
+ //! Check if it is not static
+ if(!parameter.get_static())
+ return false;
+
+ return true;
+
+}
+
+bool
+Action::LayerParamUnSetStatic::set_param(const synfig::String& name, const Action::Param ¶m)
+{
+
+ if(!layer && name=="value_desc" && param.get_type()==Param::TYPE_VALUEDESC)
+ {
+ ValueDesc value_desc(param.get_value_desc());
+ if(!value_desc.parent_is_layer_param())
+ return false;
+
+ layer=Layer::Handle::cast_dynamic(value_desc.get_layer());
+
+ if(!layer)
+ return false;
+ }
+
+
+ if(param_name.empty() && name=="value_desc" && param.get_type()==Param::TYPE_VALUEDESC)
+ {
+ ValueDesc value_desc(param.get_value_desc());
+
+ if(!value_desc.parent_is_layer_param())
+ return false;
+
+ param_name=value_desc.get_param_name();
+
+ if(param_name.empty())
+ return false;
+
+ }
+
+ return Action::CanvasSpecific::set_param(name,param);
+}
+
+bool
+Action::LayerParamUnSetStatic::is_ready()const
+{
+ if(!layer || param_name.empty())
+ return false;
+
+ return Action::CanvasSpecific::is_ready();
+}
+
+void
+Action::LayerParamUnSetStatic::perform()
+{
+ //! See if the parameter is dynamic
+ if(layer->dynamic_param_list().count(param_name))
+ throw Error(_("This action is not for Value Nodes!"));
+
+ old_static_value=layer->get_param_static(param_name);
+
+ if(!layer->set_param_static(param_name,false))
+ throw Error(_("Layer did not accept static value."));
+
+ //! Signal layer changed
+ layer->changed();
+ //! Signal that a layer parameter changed
+ if(get_canvas_interface())
+ get_canvas_interface()->signal_layer_param_changed()(layer,param_name);
+}
+
+void
+Action::LayerParamUnSetStatic::undo()
+{
+ if(!layer->set_param(param_name,old_static_value))
+ throw Error(_("Layer did not accept parameter."));
+ //! Signal layer changed
+ layer->changed();
+ //! Signal that a layer parameter changed
+ if(get_canvas_interface())
+ get_canvas_interface()->signal_layer_param_changed()(layer,param_name);
+}