Remove ancient trunk folder from svn repository

[synfig.git] / synfig-studio / src / synfigapp / actions / layerlower.cpp

diff --git a/synfig-studio/src/synfigapp/actions/layerlower.cpp b/synfig-studio/src/synfigapp/actions/layerlower.cpp
new file mode 100644 (file)
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+++ b/synfig-studio/src/synfigapp/actions/layerlower.cpp
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+/* === S Y N F I G ========================================================= */
+/*!    \file layerlower.cpp
+**     \brief Template File
+**
+**     $Id$
+**
+**     \legal
+**     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**     Copyright (c) 2008 Chris Moore
+**
+**     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 "layerlower.h"
+#include "layermove.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_NO_GET_LOCAL_NAME(Action::LayerLower);
+ACTION_SET_NAME(Action::LayerLower,"LayerLower");
+ACTION_SET_LOCAL_NAME(Action::LayerLower,N_("Lower Layer"));
+ACTION_SET_TASK(Action::LayerLower,"lower");
+ACTION_SET_CATEGORY(Action::LayerLower,Action::CATEGORY_LAYER);
+ACTION_SET_PRIORITY(Action::LayerLower,10);
+ACTION_SET_VERSION(Action::LayerLower,"0.0");
+ACTION_SET_CVS_ID(Action::LayerLower,"$Id$");
+
+/* === 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::LayerLower::LayerLower()
+{
+}
+
+synfig::String
+Action::LayerLower::get_local_name()const
+{
+       return get_layer_descriptions(layers, _("Lower Layer"), _("Lower Layers"));
+}
+
+Action::ParamVocab
+Action::LayerLower::get_param_vocab()
+{
+       ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
+
+       ret.push_back(ParamDesc("layer",Param::TYPE_LAYER)
+               .set_local_name(_("Layer"))
+               .set_desc(_("Layer to be lowered"))
+               .set_supports_multiple()
+       );
+
+       return ret;
+}
+
+bool
+Action::LayerLower::is_candidate(const ParamList &x)
+{
+       if(!candidate_check(get_param_vocab(),x))
+               return false;
+
+       Layer::Handle layer(x.find("layer")->second.get_layer());
+       //synfig::info("layer->get_depth()= %d ; layer->get_canvas()->size()=%d ;",layer->get_depth(),layer->get_canvas()->size());
+       if(layer->get_depth()+1>=layer->get_canvas()->size())
+               return false;
+       return true;
+}
+
+bool
+Action::LayerLower::set_param(const synfig::String& name, const Action::Param &param)
+{
+       if(name=="layer" && param.get_type()==Param::TYPE_LAYER)
+       {
+               layers.push_back(param.get_layer());
+
+               return true;
+       }
+
+       return Action::CanvasSpecific::set_param(name,param);
+}
+
+bool
+Action::LayerLower::is_ready()const
+{
+       if(layers.empty())
+               return false;
+       return Action::CanvasSpecific::is_ready();
+}
+
+void
+Action::LayerLower::prepare()
+{
+       std::list<synfig::Layer::Handle>::const_iterator iter;
+
+       clear();
+
+       for(iter=layers.begin();iter!=layers.end();++iter)
+       {
+               Layer::Handle layer(*iter);
+
+               Canvas::Handle subcanvas(layer->get_canvas());
+
+               // Find the iterator for the layer
+               Canvas::iterator iter=find(subcanvas->begin(),subcanvas->end(),layer);
+
+               // If we couldn't find the layer in the canvas, then bail
+               if(*iter!=layer)
+                       throw Error(_("This layer doesn't exist anymore."));
+
+               // If the subcanvas isn't the same as the canvas,
+               // then it had better be an inline canvas. If not,
+               // bail
+               //if(get_canvas()!=subcanvas && !subcanvas->is_inline())
+               //      throw Error(_("This layer doesn't belong to this canvas anymore"));
+
+               int new_index=iter-subcanvas->begin();
+
+               new_index++;
+
+               // If this lowers the layer past the bottom then don't bother
+               if(new_index==subcanvas->size())
+                       continue;
+
+               Action::Handle layer_move(LayerMove::create());
+
+               layer_move->set_param("canvas",get_canvas());
+               layer_move->set_param("canvas_interface",get_canvas_interface());
+               layer_move->set_param("layer",layer);
+               layer_move->set_param("new_index",new_index);
+
+               add_action_front(layer_move);
+       }
+}