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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file keyframewaypointset.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 "keyframewaypointset.h"
  33 #include <synfigapp/canvasinterface.h>
  34 #include <synfig/valuenode_dynamiclist.h>
  35 #include <synfig/valuenode_animated.h>
  36 #include "activepointsetsmart.h"
  37 #include "waypointsetsmart.h"
  38
  39 #endif
  40
  41 using namespace std;
  42 using namespace etl;
  43 using namespace synfig;
  44 using namespace synfigapp;
  45 using namespace Action;
  46
  47 /* === M A C R O S ========================================================= */
  48
  49 ACTION_INIT(Action::KeyframeWaypointSet);
  50 ACTION_SET_NAME(Action::KeyframeWaypointSet,"keyframe_waypoint_set");
  51 ACTION_SET_LOCAL_NAME(Action::KeyframeWaypointSet,"Set Waypoints at Keyframe");
  52 ACTION_SET_TASK(Action::KeyframeWaypointSet,"set");
  53 ACTION_SET_CATEGORY(Action::KeyframeWaypointSet,Action::CATEGORY_KEYFRAME);
  54 ACTION_SET_PRIORITY(Action::KeyframeWaypointSet,0);
  55 ACTION_SET_VERSION(Action::KeyframeWaypointSet,"0.0");
  56 ACTION_SET_CVS_ID(Action::KeyframeWaypointSet,"$Id$");
  57
  58 /* === G L O B A L S ======================================================= */
  59
  60 /* === P R O C E D U R E S ================================================= */
  61
  62 /* === M E T H O D S ======================================================= */
  63
  64 Action::KeyframeWaypointSet::KeyframeWaypointSet()
  65 {
  66         keyframe.set_time(Time::begin()-1);
  67         set_dirty(false);
  68 }
  69
  70 Action::ParamVocab
  71 Action::KeyframeWaypointSet::get_param_vocab()
  72 {
  73         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  74
  75         ret.push_back(ParamDesc("keyframe",Param::TYPE_KEYFRAME)
  76                 .set_local_name(_("Keyframe"))
  77         );
  78
  79         ret.push_back(ParamDesc("model",Param::TYPE_WAYPOINTMODEL)
  80                 .set_local_name(_("Waypoint Model"))
  81         );
  82
  83         return ret;
  84 }
  85
  86 bool
  87 Action::KeyframeWaypointSet::is_candidate(const ParamList &x)
  88 {
  89         return candidate_check(get_param_vocab(),x);
  90 }
  91
  92 bool
  93 Action::KeyframeWaypointSet::set_param(const synfig::String& name, const Action::Param &param)
  94 {
  95         if(name=="keyframe" && param.get_type()==Param::TYPE_KEYFRAME)
  96         {
  97                 keyframe=param.get_keyframe();
  98
  99                 return true;
 100         }
 101         if(name=="model" && param.get_type()==Param::TYPE_WAYPOINTMODEL)
 102         {
 103                 waypoint_model=param.get_waypoint_model();
 104
 105                 return true;
 106         }
 107
 108         return Action::CanvasSpecific::set_param(name,param);
 109 }
 110
 111 bool
 112 Action::KeyframeWaypointSet::is_ready()const
 113 {
 114         if(keyframe.get_time()==(Time::begin()-1) || waypoint_model.is_trivial())
 115                 return false;
 116         return Action::CanvasSpecific::is_ready();
 117 }
 118
 119 void
 120 Action::KeyframeWaypointSet::prepare()
 121 {
 122         clear();
 123
 124         try { get_canvas()->keyframe_list().find(keyframe);}
 125         catch(synfig::Exception::NotFound)
 126         {
 127                 throw Error(_("Unable to find the given keyframe"));
 128         }
 129
 130         {
 131                 std::vector<synfigapp::ValueDesc> value_desc_list;
 132                 get_canvas_interface()->find_important_value_descs(value_desc_list);
 133                 while(!value_desc_list.empty())
 134                 {
 135                         process_value_desc(value_desc_list.back());
 136                         value_desc_list.pop_back();
 137                 }
 138         }
 139 }
 140
 141 void
 142 Action::KeyframeWaypointSet::process_value_desc(const synfigapp::ValueDesc& value_desc)
 143 {
 144         if(value_desc.is_value_node())
 145         {
 146                 ValueNode_Animated::Handle value_node(ValueNode_Animated::Handle::cast_dynamic(value_desc.get_value_node()));
 147
 148                 if(value_node)
 149                 {
 150                         Action::Handle action(WaypointSetSmart::create());
 151
 152                         action->set_param("canvas",get_canvas());
 153                         action->set_param("canvas_interface",get_canvas_interface());
 154                         action->set_param("value_node",ValueNode::Handle(value_node));
 155
 156                         Waypoint waypoint;
 157                         try
 158                         {
 159                                 waypoint=*value_node->find(keyframe.get_time());
 160                         }
 161                         catch(...)
 162                         {
 163                                 waypoint.set_time(keyframe.get_time());
 164                                 waypoint.set_value((*value_node)(keyframe.get_time()));
 165                         }
 166                         waypoint.apply_model(waypoint_model);
 167
 168                         action->set_param("waypoint",waypoint);
 169
 170                         assert(action->is_ready());
 171                         if(!action->is_ready())
 172                                 throw Error(Error::TYPE_NOTREADY);
 173
 174                         add_action_front(action);
 175                 }
 176         }
 177 }