--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file layerremove.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 "layerremove.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::LayerRemove);
+ACTION_SET_NAME(Action::LayerRemove,"LayerRemove");
+ACTION_SET_LOCAL_NAME(Action::LayerRemove,N_("Remove Layer"));
+ACTION_SET_TASK(Action::LayerRemove,"remove");
+ACTION_SET_CATEGORY(Action::LayerRemove,Action::CATEGORY_LAYER);
+ACTION_SET_PRIORITY(Action::LayerRemove,0);
+ACTION_SET_VERSION(Action::LayerRemove,"0.0");
+ACTION_SET_CVS_ID(Action::LayerRemove,"$Id$");
+
+/* === 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::LayerRemove::LayerRemove()
+{
+}
+
+synfig::String
+Action::LayerRemove::get_local_name()const
+{
+ return get_layer_descriptions(layer_list, _("Remove Layer"), _("Remove Layers"));
+}
+
+Action::ParamVocab
+Action::LayerRemove::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 deleted"))
+ .set_supports_multiple()
+ );
+
+ return ret;
+}
+
+bool
+Action::LayerRemove::is_candidate(const ParamList &x)
+{
+ return candidate_check(get_param_vocab(),x);
+}
+
+bool
+Action::LayerRemove::set_param(const synfig::String& name, const Action::Param ¶m)
+{
+ if(name=="layer" && param.get_type()==Param::TYPE_LAYER)
+ {
+ std::pair<synfig::Layer::Handle,int> layer_pair;
+ layer_pair.first=param.get_layer();
+ layer_list.push_back(layer_pair);
+
+ return true;
+ }
+
+ return Action::CanvasSpecific::set_param(name,param);
+}
+
+bool
+Action::LayerRemove::is_ready()const
+{
+ if(layer_list.empty())
+ return false;
+ return Action::CanvasSpecific::is_ready();
+}
+
+void
+Action::LayerRemove::perform()
+{
+ std::list<std::pair<synfig::Layer::Handle,int> >::iterator iter;
+ for(iter=layer_list.begin();iter!=layer_list.end();++iter)
+ {
+ Layer::Handle layer(iter->first);
+// int& depth(iter->second);
+ Canvas::Handle subcanvas(layer->get_canvas());
+
+ // Find the iterator for the layer
+ Canvas::iterator iter2=find(subcanvas->begin(),subcanvas->end(),layer);
+
+ // If we couldn't find the layer in the canvas, then bail
+ if(*iter2!=layer)
+ {
+ /*! \todo We should really undo all prior removals
+ ** before we go throwing shit around */
+ 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())
+ {
+ /*! \todo We should really undo all prior removals
+ ** before we go throwing shit around */
+ throw Error(_("This layer doesn't belong to this canvas anymore"));
+ }
+
+ set_canvas(subcanvas);
+
+ // Calculate the depth that the layer was at (For the undo)
+ iter->second=layer->get_depth();
+
+ // Mark ourselves as dirty if necessary
+ set_dirty(layer->active());
+
+ // Remove the layer from the canvas
+ subcanvas->erase(iter2);
+
+ // Signal that a layer has been removed
+ if(get_canvas_interface())
+ get_canvas_interface()->signal_layer_removed()(layer);
+ }
+}
+
+void
+Action::LayerRemove::undo()
+{
+ std::list<std::pair<synfig::Layer::Handle,int> >::reverse_iterator iter;
+ for(iter=layer_list.rbegin();iter!=layer_list.rend();++iter)
+ {
+ Layer::Handle layer(iter->first);
+ int& depth(iter->second);
+
+ // Set the layer's canvas
+ layer->set_canvas(get_canvas());
+
+ // Make sure that the depth is valid
+ if(get_canvas()->size()<depth)
+ depth=get_canvas()->size();
+
+ // Mark ourselves as dirty if necessary
+ set_dirty(layer->active());
+
+ // Insert the layer into the canvas at the desired depth
+ get_canvas()->insert(get_canvas()->begin()+depth,layer);
+
+ // Signal that a layer has been inserted
+ if(get_canvas_interface())
+ get_canvas_interface()->signal_layer_inserted()(layer,depth);
+ }
+}
projects / synfig.git / blobdiff