1 /* === S Y N F I G ========================================================= */
2 /*! \file layerlower.cpp
3 ** \brief Template File
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 "layerlower.h"
33 #include "layermove.h"
34 #include <synfigapp/canvasinterface.h>
36 #include <synfigapp/general.h>
42 using namespace synfig;
43 using namespace synfigapp;
44 using namespace Action;
46 /* === M A C R O S ========================================================= */
48 ACTION_INIT_NO_GET_LOCAL_NAME(Action::LayerLower);
49 ACTION_SET_NAME(Action::LayerLower,"layer_lower");
50 ACTION_SET_LOCAL_NAME(Action::LayerLower,N_("Lower Layer"));
51 ACTION_SET_TASK(Action::LayerLower,"lower");
52 ACTION_SET_CATEGORY(Action::LayerLower,Action::CATEGORY_LAYER);
53 ACTION_SET_PRIORITY(Action::LayerLower,10);
54 ACTION_SET_VERSION(Action::LayerLower,"0.0");
55 ACTION_SET_CVS_ID(Action::LayerLower,"$Id$");
57 /* === G L O B A L S ======================================================= */
59 /* === P R O C E D U R E S ================================================= */
61 /* === M E T H O D S ======================================================= */
63 Action::LayerLower::LayerLower()
68 Action::LayerLower::get_local_name()const
70 return get_layer_descriptions(layers, _("Lower Layer"), _("Lower Layers"));
74 Action::LayerLower::get_param_vocab()
76 ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
78 ret.push_back(ParamDesc("layer",Param::TYPE_LAYER)
79 .set_local_name(_("Layer"))
80 .set_desc(_("Layer to be lowered"))
81 .set_supports_multiple()
88 Action::LayerLower::is_candidate(const ParamList &x)
90 if(!candidate_check(get_param_vocab(),x))
93 Layer::Handle layer(x.find("layer")->second.get_layer());
94 //synfig::info("layer->get_depth()= %d ; layer->get_canvas()->size()=%d ;",layer->get_depth(),layer->get_canvas()->size());
95 if(layer->get_depth()+1>=layer->get_canvas()->size())
101 Action::LayerLower::set_param(const synfig::String& name, const Action::Param ¶m)
103 if(name=="layer" && param.get_type()==Param::TYPE_LAYER)
105 layers.push_back(param.get_layer());
110 return Action::CanvasSpecific::set_param(name,param);
114 Action::LayerLower::is_ready()const
118 return Action::CanvasSpecific::is_ready();
122 Action::LayerLower::prepare()
124 std::list<synfig::Layer::Handle>::const_iterator iter;
128 for(iter=layers.begin();iter!=layers.end();++iter)
130 Layer::Handle layer(*iter);
132 Canvas::Handle subcanvas(layer->get_canvas());
134 // Find the iterator for the layer
135 Canvas::iterator iter=find(subcanvas->begin(),subcanvas->end(),layer);
137 // If we couldn't find the layer in the canvas, then bail
139 throw Error(_("This layer doesn't exist anymore."));
141 // If the subcanvas isn't the same as the canvas,
142 // then it had better be an inline canvas. If not,
144 //if(get_canvas()!=subcanvas && !subcanvas->is_inline())
145 // throw Error(_("This layer doesn't belong to this canvas anymore"));
147 int new_index=iter-subcanvas->begin();
151 // If this lowers the layer past the bottom then don't bother
152 if(new_index==subcanvas->size())
155 Action::Handle layer_move(LayerMove::create());
157 layer_move->set_param("canvas",get_canvas());
158 layer_move->set_param("canvas_interface",get_canvas_interface());
159 layer_move->set_param("layer",layer);
160 layer_move->set_param("new_index",new_index);
162 add_action_front(layer_move);