synfig-studio/tags/synfigstudio_0_61_03/synfig-studio/src/synfigapp/actions/valuedesclink.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file valuedesclink.cpp
   3 **      \brief Template File
   4 **
   5 **      $Id: valuedesclink.cpp,v 1.1.1.1 2005/01/07 03:34:37 darco Exp $
   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 "valuedesclink.h"
  33
  34 #include <synfigapp/canvasinterface.h>
  35 #include <synfig/valuenode_const.h>
  36
  37 #endif
  38
  39 using namespace std;
  40 using namespace etl;
  41 using namespace synfig;
  42 using namespace synfigapp;
  43 using namespace Action;
  44
  45 /* === M A C R O S ========================================================= */
  46
  47 ACTION_INIT(Action::ValueDescLink);
  48 ACTION_SET_NAME(Action::ValueDescLink,"value_desc_link");
  49 ACTION_SET_LOCAL_NAME(Action::ValueDescLink,"Link");
  50 ACTION_SET_TASK(Action::ValueDescLink,"connect");
  51 ACTION_SET_CATEGORY(Action::ValueDescLink,Action::CATEGORY_VALUEDESC);
  52 ACTION_SET_PRIORITY(Action::ValueDescLink,0);
  53 ACTION_SET_VERSION(Action::ValueDescLink,"0.0");
  54 ACTION_SET_CVS_ID(Action::ValueDescLink,"$Id: valuedesclink.cpp,v 1.1.1.1 2005/01/07 03:34:37 darco Exp $");
  55
  56 /* === G L O B A L S ======================================================= */
  57
  58 /* === P R O C E D U R E S ================================================= */
  59
  60 /* === M E T H O D S ======================================================= */
  61
  62 Action::ValueDescLink::ValueDescLink()
  63 {
  64         poison=false;
  65 }
  66
  67 Action::ParamVocab
  68 Action::ValueDescLink::get_param_vocab()
  69 {
  70         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  71
  72         ret.push_back(ParamDesc("value_desc",Param::TYPE_VALUEDESC)
  73                 .set_local_name(_("ValueDesc to link"))
  74                 .set_requires_multiple()
  75         );
  76
  77         return ret;
  78 }
  79
  80 bool
  81 Action::ValueDescLink::is_canidate(const ParamList &x)
  82 {
  83         return canidate_check(get_param_vocab(),x);
  84 }
  85
  86 bool
  87 Action::ValueDescLink::set_param(const synfig::String& name, const Action::Param &param)
  88 {
  89         if(name=="time" && param.get_type()==Param::TYPE_TIME)
  90         {
  91                 time=param.get_time();
  92                 return true;
  93         }
  94
  95         if(name=="value_desc" && param.get_type()==Param::TYPE_VALUEDESC)
  96         {
  97                 ValueDesc value_desc(param.get_value_desc());
  98
  99                 if(value_desc.is_value_node() && value_desc.get_value_node()->is_exported())
 100                 {
 101                         if(link_value_node==value_desc.get_value_node())
 102                                 return true;
 103
 104                         if(link_value_node && link_value_node->is_exported())
 105                         {
 106                                 poison=true;
 107                                 return false;
 108                         }
 109
 110                         link_value_node=value_desc.get_value_node();
 111                 }
 112                 else if(value_desc.is_value_node())
 113                 {
 114                         if(!link_value_node)
 115                         {
 116                                 link_value_node=value_desc.get_value_node();
 117                         }
 118
 119                         // Use the one that is referenced more
 120                         else if(link_value_node->rcount()<value_desc.get_value_node()->rcount())
 121                         {
 122                                 link_value_node=value_desc.get_value_node();
 123                         }
 124
 125                         // If the current link value node is a constant and
 126                         // this one isn't, then give preference to the exotic
 127                         else if(ValueNode_Const::Handle::cast_dynamic(link_value_node) && !ValueNode_Const::Handle::cast_dynamic(value_desc.get_value_node()))
 128                         {
 129                                 link_value_node=value_desc.get_value_node();
 130                         }
 131
 132                         // If both are animated, and this one has more waypoints,
 133                         // then use the one with more waypoints
 134                         else if(
 135                                         ValueNode_Animated::Handle::cast_dynamic(link_value_node)
 136                                 &&      ValueNode_Animated::Handle::cast_dynamic(value_desc.get_value_node())
 137                                 && (
 138                                         ValueNode_Animated::Handle::cast_dynamic(link_value_node)->waypoint_list().size()
 139                                 <       ValueNode_Animated::Handle::cast_dynamic(value_desc.get_value_node())->waypoint_list().size()
 140                                 )
 141                         )
 142                         {
 143                                 link_value_node=value_desc.get_value_node();
 144                         }
 145
 146                         /*
 147                         // Use the one that was most recently changed
 148                         else if(link_value_node->get_time_last_changed()<value_desc.get_value_node()->get_time_last_changed())
 149                         {
 150                                 link_value_node=value_desc.get_value_node();
 151                         }
 152                         */
 153                 }
 154
 155
 156                 if(value_desc_list.size() && value_desc.get_value_type()!=value_desc_list.front().get_value_type())
 157                 {
 158                         // Everything must be of the same type
 159                         poison=true;
 160                         return false;
 161                 }
 162                 value_desc_list.push_back(value_desc);
 163
 164                 return true;
 165         }
 166
 167         return Action::CanvasSpecific::set_param(name,param);
 168 }
 169
 170 bool
 171 Action::ValueDescLink::is_ready()const
 172 {
 173         if(poison || value_desc_list.size()<=1)
 174                 return false;
 175         return Action::CanvasSpecific::is_ready();
 176 }
 177
 178 void
 179 Action::ValueDescLink::prepare()
 180 {
 181         if(poison || value_desc_list.empty())
 182                 throw Error(Error::TYPE_NOTREADY);
 183
 184         clear();
 185
 186         if(!link_value_node)
 187         {
 188                 ValueDesc& value_desc(value_desc_list.front());
 189
 190                 link_value_node=ValueNode_Const::create(value_desc.get_value(time));
 191
 192                 Action::Handle action(Action::create("value_desc_connect"));
 193
 194                 action->set_param("canvas",get_canvas());
 195                 action->set_param("canvas_interface",get_canvas_interface());
 196                 action->set_param("src",link_value_node);
 197                 action->set_param("dest",value_desc);
 198
 199                 assert(action->is_ready());
 200                 if(!action->is_ready())
 201                         throw Error(Error::TYPE_NOTREADY);
 202
 203                 add_action_front(action);
 204         }
 205
 206         /*
 207         if(!link_value_node->is_exported())
 208         {
 209                 Action::Handle action(Action::create("value_node_add"));
 210
 211                 action->set_param("canvas",get_canvas());
 212                 action->set_param("canvas_interface",get_canvas_interface());
 213                 action->set_param("new",link_value_node);
 214                 action->set_param("name",strprintf(_("Unnamed%08d"),synfig::UniqueID().get_uid()));
 215
 216                 assert(action->is_ready());
 217                 if(!action->is_ready())
 218                         throw Error(Error::TYPE_NOTREADY);
 219
 220                 add_action_front(action);
 221         }
 222         */
 223
 224         std::list<ValueDesc>::iterator iter;
 225         for(iter=value_desc_list.begin();iter!=value_desc_list.end();++iter)
 226         {
 227                 ValueDesc& value_desc(*iter);
 228
 229                 if(value_desc.is_value_node() && value_desc.get_value_node()==link_value_node)
 230                         continue;
 231
 232                 Action::Handle action(Action::create("value_desc_connect"));
 233
 234                 action->set_param("canvas",get_canvas());
 235                 action->set_param("canvas_interface",get_canvas_interface());
 236                 action->set_param("src",link_value_node);
 237                 action->set_param("dest",value_desc);
 238
 239                 assert(action->is_ready());
 240                 if(!action->is_ready())
 241                         throw Error(Error::TYPE_NOTREADY);
 242
 243                 add_action_front(action);
 244         }
 245 }