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 **
  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.
  14 **
  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.
  19 **      \endlegal
  20 */
  21 /* ========================================================================= */
  22
  23 /* === H E A D E R S ======================================================= */
  24
  25 #ifdef USING_PCH
  26 #       include "pch.h"
  27 #else
  28 #ifdef HAVE_CONFIG_H
  29 #       include <config.h>
  30 #endif
  31
  32 #include "layerduplicate.h"
  33 #include "layeradd.h"
  34 #include <synfigapp/canvasinterface.h>
  35
  36 #include <synfigapp/general.h>
  37
  38 #endif
  39
  40 using namespace std;
  41 using namespace etl;
  42 using namespace synfig;
  43 using namespace synfigapp;
  44 using namespace Action;
  45
  46 /* === M A C R O S ========================================================= */
  47
  48 ACTION_INIT_NO_GET_LOCAL_NAME(Action::LayerDuplicate);
  49 ACTION_SET_NAME(Action::LayerDuplicate,"layer_duplicate");
  50 ACTION_SET_LOCAL_NAME(Action::LayerDuplicate,N_("Duplicate Layer"));
  51 ACTION_SET_TASK(Action::LayerDuplicate,"duplicate");
  52 ACTION_SET_CATEGORY(Action::LayerDuplicate,Action::CATEGORY_LAYER);
  53 ACTION_SET_PRIORITY(Action::LayerDuplicate,0);
  54 ACTION_SET_VERSION(Action::LayerDuplicate,"0.0");
  55 ACTION_SET_CVS_ID(Action::LayerDuplicate,"$Id$");
  56
  57 /* === G L O B A L S ======================================================= */
  58
  59 /* === P R O C E D U R E S ================================================= */
  60
  61 /* === M E T H O D S ======================================================= */
  62
  63 Action::LayerDuplicate::LayerDuplicate()
  64 {
  65 }
  66
  67 synfig::String
  68 Action::LayerDuplicate::get_local_name()const
  69 {
  70         return get_layer_descriptions(layers, _("Duplicate Layer"), _("Duplicate Layers"));
  71 }
  72
  73 Action::ParamVocab
  74 Action::LayerDuplicate::get_param_vocab()
  75 {
  76         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  77
  78         ret.push_back(ParamDesc("layer",Param::TYPE_LAYER)
  79                 .set_local_name(_("Layer"))
  80                 .set_desc(_("Layer to be duplicated"))
  81                 .set_supports_multiple()
  82         );
  83
  84         return ret;
  85 }
  86
  87 bool
  88 Action::LayerDuplicate::is_candidate(const ParamList &x)
  89 {
  90         return candidate_check(get_param_vocab(),x);
  91 }
  92
  93 bool
  94 Action::LayerDuplicate::set_param(const synfig::String& name, const Action::Param &param)
  95 {
  96         if(name=="layer" && param.get_type()==Param::TYPE_LAYER)
  97         {
  98                 layers.push_back(param.get_layer());
  99
 100                 return true;
 101         }
 102
 103         return Action::CanvasSpecific::set_param(name,param);
 104 }
 105
 106 bool
 107 Action::LayerDuplicate::is_ready()const
 108 {
 109         if(layers.empty())
 110                 return false;
 111         return Action::CanvasSpecific::is_ready();
 112 }
 113
 114 void
 115 Action::LayerDuplicate::prepare()
 116 {
 117         if(!first_time())
 118                 return;
 119
 120         std::list<synfig::Layer::Handle>::const_iterator iter;
 121
 122         for(iter=layers.begin();iter!=layers.end();++iter)
 123         {
 124                 Layer::Handle layer(*iter);
 125
 126                 Canvas::Handle subcanvas(layer->get_canvas());
 127
 128                 // Find the iterator for the layer
 129                 Canvas::iterator iter=find(subcanvas->begin(),subcanvas->end(),layer);
 130
 131                 // If we couldn't find the layer in the canvas, then bail
 132                 if(*iter!=layer)
 133                         throw Error(_("This layer doesn't exist anymore."));
 134
 135                 // If the subcanvas isn't the same as the canvas,
 136                 // then it had better be an inline canvas. If not,
 137                 // bail
 138                 if(get_canvas()!=subcanvas && !subcanvas->is_inline())
 139                         throw Error(_("This layer doesn't belong to this canvas anymore"));
 140
 141                 Layer::Handle new_layer(layer->clone(guid));
 142
 143                 {
 144                         Action::Handle action(Action::create("layer_move"));
 145
 146                         action->set_param("canvas",subcanvas);
 147                         action->set_param("canvas_interface",get_canvas_interface());
 148                         action->set_param("layer",new_layer);
 149                         action->set_param("new_index",layers.front()->get_depth());
 150
 151                         add_action_front(action);
 152                 }
 153                 {
 154                         Action::Handle action(Action::create("layer_add"));
 155
 156                         action->set_param("canvas",subcanvas);
 157                         action->set_param("canvas_interface",get_canvas_interface());
 158                         action->set_param("new",new_layer);
 159
 160                         add_action_front(action);
 161                 }
 162
 163                 // automatically export the Index parameter of Duplicate layers when duplicating
 164                 if (new_layer->get_name() == "duplicate")
 165                         for (int i = 1; ; i++)
 166                         {
 167                                 String name = strprintf(_("Index %d"), i);
 168                                 try
 169                                 {
 170                                         subcanvas->find_value_node(name);
 171                                 }
 172                                 catch (Exception::IDNotFound x)
 173                                 {
 174                                         Action::Handle action(Action::create("value_node_add"));
 175
 176                                         action->set_param("canvas",subcanvas);
 177                                         action->set_param("canvas_interface",get_canvas_interface());
 178                                         action->set_param("new",new_layer->dynamic_param_list().find("index")->second);
 179                                         action->set_param("name",name);
 180
 181                                         add_action_front(action);
 182
 183                                         break;
 184                                 }
 185                         }
 186         }
 187 }