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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file valuedescdisconnect.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 "layerparamdisconnect.h"
  34 #include "valuenodelinkdisconnect.h"
  35 #include "valuenodereplace.h"
  36
  37 #include "valuedescdisconnect.h"
  38 #include <synfigapp/canvasinterface.h>
  39 #include <synfig/valuenode_const.h>
  40 #include <synfig/valuenode_duplicate.h>
  41
  42 #include <synfigapp/general.h>
  43
  44 #endif
  45
  46 using namespace std;
  47 using namespace etl;
  48 using namespace synfig;
  49 using namespace synfigapp;
  50 using namespace Action;
  51
  52 /* === M A C R O S ========================================================= */
  53
  54 ACTION_INIT_NO_GET_LOCAL_NAME(Action::ValueDescDisconnect);
  55 ACTION_SET_NAME(Action::ValueDescDisconnect,"value_desc_disconnect");
  56 ACTION_SET_LOCAL_NAME(Action::ValueDescDisconnect,N_("Disconnect"));
  57 ACTION_SET_TASK(Action::ValueDescDisconnect,"disconnect");
  58 ACTION_SET_CATEGORY(Action::ValueDescDisconnect,Action::CATEGORY_VALUEDESC);
  59 ACTION_SET_PRIORITY(Action::ValueDescDisconnect,-100);
  60 ACTION_SET_VERSION(Action::ValueDescDisconnect,"0.0");
  61 ACTION_SET_CVS_ID(Action::ValueDescDisconnect,"$Id$");
  62
  63 /* === G L O B A L S ======================================================= */
  64
  65 /* === P R O C E D U R E S ================================================= */
  66
  67 /* === M E T H O D S ======================================================= */
  68
  69 Action::ValueDescDisconnect::ValueDescDisconnect():
  70         time(0)
  71 {
  72 }
  73
  74 synfig::String
  75 Action::ValueDescDisconnect::get_local_name()const
  76 {
  77   // TRANSLATORS: This is used in the History dialog when a ValueNode is disconnected.
  78   return strprintf(_("Disconnect %s"),
  79                    value_desc
  80                    ? value_desc.get_description().c_str()
  81                    : _("ValueDesc"));
  82 }
  83
  84 Action::ParamVocab
  85 Action::ValueDescDisconnect::get_param_vocab()
  86 {
  87         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  88
  89         ret.push_back(ParamDesc("value_desc",Param::TYPE_VALUEDESC)
  90                 .set_local_name(_("ValueDesc"))
  91         );
  92
  93         ret.push_back(ParamDesc("time",Param::TYPE_TIME)
  94                 .set_local_name(_("Time"))
  95                 .set_optional()
  96         );
  97
  98         return ret;
  99 }
 100
 101 bool
 102 Action::ValueDescDisconnect::is_candidate(const ParamList &x)
 103 {
 104         if(candidate_check(get_param_vocab(),x))
 105         {
 106                 ValueDesc value_desc(x.find("value_desc")->second.get_value_desc());
 107
 108                 // don't allow the Index parameter of the Duplicate layer to be disconnected
 109                 if(value_desc.parent_is_layer_param() && value_desc.get_layer()->get_name() == "duplicate" && value_desc.get_param_name() == "index")
 110                         return false;
 111                 if(!value_desc.parent_is_canvas() && value_desc.is_value_node() && value_desc.get_value_node()->rcount()>1)
 112                         return true;
 113                 if(value_desc.is_const())
 114                         return false;
 115                 if(value_desc.is_value_node() && ValueNode_Const::Handle::cast_dynamic(value_desc.get_value_node()))
 116                         return false;
 117                 // don't allow Duplicate ValueNodes in the Children dialog to be disconnected
 118                 if(value_desc.is_value_node() &&
 119                    ValueNode_Duplicate::Handle::cast_dynamic(value_desc.get_value_node()) &&
 120                    !value_desc.parent_is_layer_param() &&
 121                    !value_desc.parent_is_value_node())
 122                         return false;
 123                 return true;
 124         }
 125         return false;
 126 }
 127
 128 bool
 129 Action::ValueDescDisconnect::set_param(const synfig::String& name, const Action::Param &param)
 130 {
 131         if(name=="value_desc" && param.get_type()==Param::TYPE_VALUEDESC)
 132         {
 133                 value_desc=param.get_value_desc();
 134
 135                 return true;
 136         }
 137
 138         if(name=="time" && param.get_type()==Param::TYPE_TIME)
 139         {
 140                 time=param.get_time();
 141
 142                 return true;
 143         }
 144
 145         return Action::CanvasSpecific::set_param(name,param);
 146 }
 147
 148 bool
 149 Action::ValueDescDisconnect::is_ready()const
 150 {
 151         if(!value_desc)
 152                 return false;
 153         return Action::CanvasSpecific::is_ready();
 154 }
 155
 156 void
 157 Action::ValueDescDisconnect::prepare()
 158 {
 159         clear();
 160
 161         if(value_desc.parent_is_canvas())
 162         {
 163                 ValueNode::Handle src_value_node;
 164                 src_value_node=ValueNode_Const::create((*value_desc.get_value_node())(time));
 165
 166                 Action::Handle action(ValueNodeReplace::create());
 167
 168                 action->set_param("canvas",get_canvas());
 169                 action->set_param("canvas_interface",get_canvas_interface());
 170                 action->set_param("src",src_value_node);
 171                 action->set_param("dest",value_desc.get_value_node());
 172
 173                 assert(action->is_ready());
 174                 if(!action->is_ready())
 175                         throw Error(Error::TYPE_NOTREADY);
 176
 177                 add_action_front(action);
 178                 return;
 179         }
 180         else
 181         if(value_desc.parent_is_linkable_value_node())
 182         {
 183                 Action::Handle action(ValueNodeLinkDisconnect::create());
 184
 185                 action->set_param("canvas",get_canvas());
 186                 action->set_param("canvas_interface",get_canvas_interface());
 187                 action->set_param("parent_value_node",value_desc.get_parent_value_node());
 188                 action->set_param("index",value_desc.get_index());
 189                 action->set_param("time",time);
 190
 191                 assert(action->is_ready());
 192                 if(!action->is_ready())
 193                         throw Error(Error::TYPE_NOTREADY);
 194
 195                 add_action_front(action);
 196                 return;
 197         }
 198         else
 199         if(value_desc.parent_is_layer_param())
 200         {
 201                 Action::Handle action(LayerParamDisconnect::create());
 202
 203                 action->set_param("canvas",get_canvas());
 204                 action->set_param("canvas_interface",get_canvas_interface());
 205                 action->set_param("layer",value_desc.get_layer());
 206                 action->set_param("param",value_desc.get_param_name());
 207                 action->set_param("time",time);
 208
 209                 assert(action->is_ready());
 210                 if(!action->is_ready())
 211                         throw Error(Error::TYPE_NOTREADY);
 212
 213                 add_action_front(action);
 214                 return;
 215         }
 216
 217         throw Error(_("ValueDesc is not recognized or supported."));
 218 }