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