synfig-studio/trunk/src/synfigapp/actions/layerduplicate.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file layerduplicate.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 "layerduplicate.h"
  34 #include "layeradd.h"
  35 #include <synfigapp/canvasinterface.h>
  36
  37 #include <synfigapp/general.h>
  38
  39 #endif
  40
  41 using namespace std;
  42 using namespace etl;
  43 using namespace synfig;
  44 using namespace synfigapp;
  45 using namespace Action;
  46
  47 /* === M A C R O S ========================================================= */
  48
  49 ACTION_INIT_NO_GET_LOCAL_NAME(Action::LayerDuplicate);
  50 ACTION_SET_NAME(Action::LayerDuplicate,"layer_duplicate");
  51 ACTION_SET_LOCAL_NAME(Action::LayerDuplicate,N_("Duplicate Layer"));
  52 ACTION_SET_TASK(Action::LayerDuplicate,"duplicate");
  53 ACTION_SET_CATEGORY(Action::LayerDuplicate,Action::CATEGORY_LAYER);
  54 ACTION_SET_PRIORITY(Action::LayerDuplicate,0);
  55 ACTION_SET_VERSION(Action::LayerDuplicate,"0.0");
  56 ACTION_SET_CVS_ID(Action::LayerDuplicate,"$Id$");
  57
  58 /* === G L O B A L S ======================================================= */
  59
  60 /* === P R O C E D U R E S ================================================= */
  61
  62 /* === M E T H O D S ======================================================= */
  63
  64 Action::LayerDuplicate::LayerDuplicate()
  65 {
  66 }
  67
  68 synfig::String
  69 Action::LayerDuplicate::get_local_name()const
  70 {
  71         return get_layer_descriptions(layers, _("Duplicate Layer"), _("Duplicate Layers"));
  72 }
  73
  74 Action::ParamVocab
  75 Action::LayerDuplicate::get_param_vocab()
  76 {
  77         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  78
  79         ret.push_back(ParamDesc("layer",Param::TYPE_LAYER)
  80                 .set_local_name(_("Layer"))
  81                 .set_desc(_("Layer to be duplicated"))
  82                 .set_supports_multiple()
  83         );
  84
  85         return ret;
  86 }
  87
  88 bool
  89 Action::LayerDuplicate::is_candidate(const ParamList &x)
  90 {
  91         return candidate_check(get_param_vocab(),x);
  92 }
  93
  94 bool
  95 Action::LayerDuplicate::set_param(const synfig::String& name, const Action::Param &param)
  96 {
  97         if(name=="layer" && param.get_type()==Param::TYPE_LAYER)
  98         {
  99                 layers.push_back(param.get_layer());
 100
 101                 return true;
 102         }
 103
 104         return Action::CanvasSpecific::set_param(name,param);
 105 }
 106
 107 bool
 108 Action::LayerDuplicate::is_ready()const
 109 {
 110         if(layers.empty())
 111                 return false;
 112         return Action::CanvasSpecific::is_ready();
 113 }
 114
 115 void
 116 Action::LayerDuplicate::prepare()
 117 {
 118         if(!first_time())
 119                 return;
 120
 121         std::list<synfig::Layer::Handle>::const_iterator iter;
 122
 123         for(iter=layers.begin();iter!=layers.end();++iter)
 124         {
 125                 Layer::Handle layer(*iter);
 126
 127                 Canvas::Handle subcanvas(layer->get_canvas());
 128
 129                 // Find the iterator for the layer
 130                 Canvas::iterator iter=find(subcanvas->begin(),subcanvas->end(),layer);
 131
 132                 // If we couldn't find the layer in the canvas, then bail
 133                 if(*iter!=layer)
 134                         throw Error(_("This layer doesn't exist anymore."));
 135
 136                 // If the subcanvas isn't the same as the canvas,
 137                 // then it had better be an inline canvas. If not,
 138                 // bail
 139                 if(get_canvas()!=subcanvas && !subcanvas->is_inline())
 140                         throw Error(_("This layer doesn't belong to this canvas anymore"));
 141
 142                 Layer::Handle new_layer(layer->clone(guid));
 143
 144                 {
 145                         Action::Handle action(Action::create("layer_move"));
 146
 147                         action->set_param("canvas",subcanvas);
 148                         action->set_param("canvas_interface",get_canvas_interface());
 149                         action->set_param("layer",new_layer);
 150                         action->set_param("new_index",layers.front()->get_depth());
 151
 152                         add_action_front(action);
 153                 }
 154                 {
 155                         Action::Handle action(Action::create("layer_add"));
 156
 157                         action->set_param("canvas",subcanvas);
 158                         action->set_param("canvas_interface",get_canvas_interface());
 159                         action->set_param("new",new_layer);
 160
 161                         add_action_front(action);
 162                 }
 163
 164                 // automatically export the Index parameter of Duplicate layers when duplicating
 165                 if (new_layer->get_name() == "duplicate")
 166                         for (int i = 1; ; i++)
 167                         {
 168                                 String name = strprintf(_("Index %d"), i);
 169                                 try
 170                                 {
 171                                         subcanvas->find_value_node(name);
 172                                 }
 173                                 catch (Exception::IDNotFound x)
 174                                 {
 175                                         Action::Handle action(Action::create("value_node_add"));
 176
 177                                         action->set_param("canvas",subcanvas);
 178                                         action->set_param("canvas_interface",get_canvas_interface());
 179                                         action->set_param("new",new_layer->dynamic_param_list().find("index")->second);
 180                                         action->set_param("name",name);
 181
 182                                         add_action_front(action);
 183
 184                                         break;
 185                                 }
 186                         }
 187         }
 188 }