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