1 /* === S Y N F I G ========================================================= */
2 /*! \file action_layerremove.cpp
3 ** \brief Template File
5 ** $Id: layerremove.cpp,v 1.1.1.1 2005/01/07 03:34:37 darco Exp $
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
10 ** This package is free software; you can redistribute it and/or
11 ** modify it under the terms of the GNU General Public License as
12 ** published by the Free Software Foundation; either version 2 of
13 ** the License, or (at your option) any later version.
15 ** This package is distributed in the hope that it will be useful,
16 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 ** General Public License for more details.
21 /* ========================================================================= */
23 /* === H E A D E R S ======================================================= */
32 #include "layerremove.h"
33 #include <synfigapp/canvasinterface.h>
39 using namespace synfig;
40 using namespace synfigapp;
41 using namespace Action;
43 /* === M A C R O S ========================================================= */
45 ACTION_INIT(Action::LayerRemove);
46 ACTION_SET_NAME(Action::LayerRemove,"layer_remove");
47 ACTION_SET_LOCAL_NAME(Action::LayerRemove,"Remove Layer");
48 ACTION_SET_TASK(Action::LayerRemove,"remove");
49 ACTION_SET_CATEGORY(Action::LayerRemove,Action::CATEGORY_LAYER);
50 ACTION_SET_PRIORITY(Action::LayerRemove,0);
51 ACTION_SET_VERSION(Action::LayerRemove,"0.0");
52 ACTION_SET_CVS_ID(Action::LayerRemove,"$Id: layerremove.cpp,v 1.1.1.1 2005/01/07 03:34:37 darco Exp $");
54 /* === G L O B A L S ======================================================= */
56 /* === P R O C E D U R E S ================================================= */
58 /* === M E T H O D S ======================================================= */
60 Action::LayerRemove::LayerRemove()
65 Action::LayerRemove::get_param_vocab()
67 ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
69 ret.push_back(ParamDesc("layer",Param::TYPE_LAYER)
70 .set_local_name(_("Layer"))
71 .set_desc(_("Layer to be deleted"))
72 .set_supports_multiple()
79 Action::LayerRemove::is_canidate(const ParamList &x)
81 return canidate_check(get_param_vocab(),x);
85 Action::LayerRemove::set_param(const synfig::String& name, const Action::Param ¶m)
87 if(name=="layer" && param.get_type()==Param::TYPE_LAYER)
89 std::pair<synfig::Layer::Handle,int> layer_pair;
90 layer_pair.first=param.get_layer();
91 layer_list.push_back(layer_pair);
96 return Action::CanvasSpecific::set_param(name,param);
100 Action::LayerRemove::is_ready()const
102 if(layer_list.empty())
104 return Action::CanvasSpecific::is_ready();
108 Action::LayerRemove::perform()
110 std::list<std::pair<synfig::Layer::Handle,int> >::iterator iter;
111 for(iter=layer_list.begin();iter!=layer_list.end();++iter)
113 Layer::Handle layer(iter->first);
114 // int& depth(iter->second);
115 Canvas::Handle subcanvas(layer->get_canvas());
117 // Find the iterator for the layer
118 Canvas::iterator iter2=find(subcanvas->begin(),subcanvas->end(),layer);
120 // If we couldn't find the layer in the canvas, then bail
123 /*! \fixme We should really undo all prior removals
124 ** before we go throwing shit around */
125 throw Error(_("This layer doesn't exist anymore."));
128 // If the subcanvas isn't the same as the canvas,
129 // then it had better be an inline canvas. If not,
131 if(get_canvas()!=subcanvas && !subcanvas->is_inline())
133 /*! \fixme We should really undo all prior removals
134 ** before we go throwing shit around */
135 throw Error(_("This layer doesn't belong to this canvas anymore"));
138 set_canvas(subcanvas);
140 // Calculate the depth that the layer was at (For the undo)
141 iter->second=layer->get_depth();
143 // Mark ourselves as dirty if necessary
144 set_dirty(layer->active());
146 // Remove the layer from the canvas
147 subcanvas->erase(iter2);
149 // Signal that a layer has been removed
150 if(get_canvas_interface())
151 get_canvas_interface()->signal_layer_removed()(layer);
156 Action::LayerRemove::undo()
158 std::list<std::pair<synfig::Layer::Handle,int> >::reverse_iterator iter;
159 for(iter=layer_list.rbegin();iter!=layer_list.rend();++iter)
161 Layer::Handle layer(iter->first);
162 int& depth(iter->second);
164 // Set the layer's canvas
165 layer->set_canvas(get_canvas());
167 // Make sure that the depth is valid
168 if(get_canvas()->size()<depth)
169 depth=get_canvas()->size();
171 // Mark ourselves as dirty if necessary
172 set_dirty(layer->active());
174 // Insert the layer into the canvas at the desired depth
175 get_canvas()->insert(get_canvas()->begin()+depth,layer);
177 // Signal that a layer has been inserted
178 if(get_canvas_interface())
179 get_canvas_interface()->signal_layer_inserted()(layer,depth);