source: synfigstudio/trunk/fuentes/src/synfigapp/actions/layermove.cpp @ 481

Last change on this file since 481 was 481, checked in by jrpelegrina, 4 years ago

First release to xenial

File size: 7.2 KB
Line 
1/* === S Y N F I G ========================================================= */
2/*!     \file layermove.cpp
3**      \brief Template File
4**
5**      $Id$
6**
7**      \legal
8**      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
9**      Copyright (c) 2008 Chris Moore
10**
11**      This package is free software; you can redistribute it and/or
12**      modify it under the terms of the GNU General Public License as
13**      published by the Free Software Foundation; either version 2 of
14**      the License, or (at your option) any later version.
15**
16**      This package is distributed in the hope that it will be useful,
17**      but WITHOUT ANY WARRANTY; without even the implied warranty of
18**      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19**      General Public License for more details.
20**      \endlegal
21*/
22/* ========================================================================= */
23
24/* === H E A D E R S ======================================================= */
25
26#ifdef USING_PCH
27#       include "pch.h"
28#else
29#ifdef HAVE_CONFIG_H
30#       include <config.h>
31#endif
32
33#include "layermove.h"
34#include <synfigapp/canvasinterface.h>
35
36#include <synfigapp/general.h>
37
38#endif
39
40using namespace std;
41using namespace etl;
42using namespace synfig;
43using namespace synfigapp;
44using namespace Action;
45
46/* === M A C R O S ========================================================= */
47
48ACTION_INIT_NO_GET_LOCAL_NAME(Action::LayerMove);
49ACTION_SET_NAME(Action::LayerMove,"LayerMove");
50ACTION_SET_LOCAL_NAME(Action::LayerMove,N_("Move Layer"));
51ACTION_SET_TASK(Action::LayerMove,"move");
52ACTION_SET_CATEGORY(Action::LayerMove,Action::CATEGORY_LAYER);
53ACTION_SET_PRIORITY(Action::LayerMove,0);
54ACTION_SET_VERSION(Action::LayerMove,"0.0");
55ACTION_SET_CVS_ID(Action::LayerMove,"$Id$");
56
57/* === G L O B A L S ======================================================= */
58
59// static const int nindex=-1;
60
61/* === P R O C E D U R E S ================================================= */
62
63/* === M E T H O D S ======================================================= */
64
65Action::LayerMove::LayerMove():
66        old_index(),
67        new_index(0xdeadbeef) // Dead beef? LOL
68{ }
69
70synfig::String
71Action::LayerMove::get_local_name()const
72{
73        if (layer)
74                return strprintf("%s '%s'", _("Move Layer"), layer->get_non_empty_description().c_str());
75        else
76                return _("Move Layer");
77}
78
79Action::ParamVocab
80Action::LayerMove::get_param_vocab()
81{
82        ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
83
84        ret.push_back(ParamDesc("layer",Param::TYPE_LAYER)
85                .set_local_name(_("Layer"))
86                .set_desc(_("Layer to be moved"))
87        );
88
89        ret.push_back(ParamDesc("new_index",Param::TYPE_INTEGER)
90                .set_local_name(_("New Index"))
91                .set_desc(_("Where the layer is to be moved to"))
92        );
93
94        ret.push_back(ParamDesc("dest_canvas",Param::TYPE_CANVAS)
95                .set_local_name(_("Destination Canvas"))
96                .set_desc(_("The canvas the layer is to be moved to"))
97                .set_optional()
98        );
99
100        return ret;
101}
102
103bool
104Action::LayerMove::is_candidate(const ParamList &x)
105{
106        return candidate_check(get_param_vocab(),x);
107}
108
109bool
110Action::LayerMove::set_param(const synfig::String& name, const Action::Param &param)
111{
112        if(name=="layer" && param.get_type()==Param::TYPE_LAYER)
113        {
114
115                layer=param.get_layer();
116
117                return true;
118        }
119
120        if(name=="new_index" && param.get_type()==Param::TYPE_INTEGER)
121        {
122                new_index=param.get_integer();
123
124                return true;
125        }
126
127        if(name=="dest_canvas" && param.get_type()==Param::TYPE_CANVAS)
128        {
129                dest_canvas=param.get_canvas();
130
131                return true;
132        }
133
134        return Action::CanvasSpecific::set_param(name,param);
135}
136
137bool
138Action::LayerMove::is_ready()const
139{
140        // synfig::info(__FILE__":%d: layer->count()=%d",__LINE__,layer.count());
141        if(!layer || (unsigned)new_index==0xdeadbeef)
142                return false;
143        return Action::CanvasSpecific::is_ready();
144}
145
146void
147Action::LayerMove::perform()
148{
149        // synfig::info(__FILE__":%d: layer->count()=%d",__LINE__,layer.count());
150
151        Canvas::Handle subcanvas(layer->get_canvas());
152        src_canvas=subcanvas;
153        if(!dest_canvas)
154                dest_canvas=subcanvas;
155
156        // Find the iterator for the layer
157        Canvas::iterator iter=find(src_canvas->begin(),src_canvas->end(),layer);
158
159        // If we couldn't find the layer in the canvas, then bail
160        if(*iter!=layer)
161                throw Error(_("This layer doesn't exist anymore."));
162
163        // synfig::info(__FILE__":%d: layer->count()=%d",__LINE__,layer.count());
164
165        // If the subcanvas isn't the same as the canvas,
166        // then it had better be an inline canvas. If not,
167        // bail
168        //if(get_canvas()!=subcanvas && !subcanvas->is_inline())
169        if(get_canvas()->get_root()!=dest_canvas->get_root() || get_canvas()->get_root()!=src_canvas->get_root())
170                throw Error(_("You cannot directly move layers across compositions"));
171
172        old_index=iter-src_canvas->begin();
173        int depth;
174
175        if(new_index<0)
176                depth=dest_canvas->size()+new_index+1;
177        else
178                depth=new_index;
179
180        set_dirty(layer->active());
181
182        // synfig::info(__FILE__":%d: layer->count()=%d",__LINE__,layer.count());
183
184        // If we were to move it to where it is
185        if(old_index==depth && src_canvas==dest_canvas)
186                return;
187
188        if(depth>dest_canvas->size())
189                depth=dest_canvas->size();
190        if(depth<0)
191                depth=0;
192
193        src_canvas->erase(iter);
194
195        dest_canvas->insert(dest_canvas->begin()+depth,layer);
196        layer->set_canvas(dest_canvas);
197
198        layer->changed();
199        dest_canvas->changed(); if(dest_canvas!=src_canvas) src_canvas->changed();
200
201        // synfig::info(__FILE__":%d: layer->count()=%d",__LINE__,layer.count());
202
203        if(get_canvas_interface())
204        {
205                if(src_canvas==dest_canvas)
206                {
207                        if(new_index==old_index-1)      // Raise
208                                get_canvas_interface()->signal_layer_raised()(layer);
209                        else if(new_index==old_index+1) // Lower
210                                get_canvas_interface()->signal_layer_lowered()(layer);
211                        else            // Moved
212                        {
213                                get_canvas_interface()->signal_layer_moved()(layer,depth,dest_canvas);
214                        }
215                }
216                else
217                {
218                        get_canvas_interface()->signal_layer_moved()(layer,depth,dest_canvas);
219                }
220        }
221        else synfig::warning("CanvasInterface not set on action");
222
223        // synfig::info(__FILE__":%d: layer->count()=%d",__LINE__,layer.count());
224}
225
226void
227Action::LayerMove::undo()
228{
229        // Find the iterator for the layer
230        Canvas::iterator iter=find(dest_canvas->begin(),dest_canvas->end(),layer);
231
232        // If we couldn't find the layer in the canvas, then bail
233        if(*iter!=layer || (get_canvas()!=dest_canvas && !dest_canvas->is_inline()))
234                throw Error(_("This layer doesn't exist anymore."));
235
236        // If we were to move it to where it is
237        if(old_index==new_index && src_canvas==dest_canvas)
238                return;
239
240        // Mark ourselves as dirty if necessary
241        set_dirty(layer->active());
242
243        dest_canvas->erase(iter);
244
245        src_canvas->insert(src_canvas->begin()+old_index,layer);
246        layer->set_canvas(src_canvas);
247
248        layer->changed();
249        dest_canvas->changed(); if(dest_canvas!=src_canvas) src_canvas->changed();
250
251        // Execute any signals
252        if(get_canvas_interface())
253        {
254                if(src_canvas==dest_canvas)
255                {
256                        if(new_index==old_index+1)      // Raise
257                                get_canvas_interface()->signal_layer_raised()(layer);
258                        else if(new_index==old_index-1) // Lower
259                                get_canvas_interface()->signal_layer_lowered()(layer);
260                        else            // Moved
261                        {
262                        get_canvas_interface()->signal_layer_moved()(layer,old_index,src_canvas);
263                        }
264                }
265                else
266                {
267                        get_canvas_interface()->signal_layer_moved()(layer,old_index,src_canvas);
268                        //get_canvas_interface()->signal_layer_removed()(layer);
269                        //get_canvas_interface()->signal_layer_inserted()(layer,old_index);
270                }
271        }
272        else synfig::warning("CanvasInterface not set on action");
273}
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