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 #include <synfigapp/general.h>
  40
  41 #endif
  42
  43 using namespace std;
  44 using namespace etl;
  45 using namespace synfig;
  46 using namespace synfigapp;
  47 using namespace Action;
  48
  49 /* === M A C R O S ========================================================= */
  50
  51 ACTION_INIT(Action::KeyframeWaypointSet);
  52 ACTION_SET_NAME(Action::KeyframeWaypointSet,"KeyframeWaypointSet");
  53 ACTION_SET_LOCAL_NAME(Action::KeyframeWaypointSet,N_("Set Waypoints at Keyframe"));
  54 ACTION_SET_TASK(Action::KeyframeWaypointSet,"set");
  55 ACTION_SET_CATEGORY(Action::KeyframeWaypointSet,Action::CATEGORY_KEYFRAME);
  56 ACTION_SET_PRIORITY(Action::KeyframeWaypointSet,0);
  57 ACTION_SET_VERSION(Action::KeyframeWaypointSet,"0.0");
  58 ACTION_SET_CVS_ID(Action::KeyframeWaypointSet,"$Id$");
  59
  60 /* === G L O B A L S ======================================================= */
  61
  62 /* === P R O C E D U R E S ================================================= */
  63
  64 /* === M E T H O D S ======================================================= */
  65
  66 Action::KeyframeWaypointSet::KeyframeWaypointSet()
  67 {
  68         keyframe.set_time(Time::begin()-1);
  69         set_dirty(false);
  70 }
  71
  72 Action::ParamVocab
  73 Action::KeyframeWaypointSet::get_param_vocab()
  74 {
  75         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  76
  77         ret.push_back(ParamDesc("keyframe",Param::TYPE_KEYFRAME)
  78                 .set_local_name(_("Keyframe"))
  79         );
  80
  81         ret.push_back(ParamDesc("model",Param::TYPE_WAYPOINTMODEL)
  82                 .set_local_name(_("Waypoint Model"))
  83         );
  84
  85         return ret;
  86 }
  87
  88 bool
  89 Action::KeyframeWaypointSet::is_candidate(const ParamList &x)
  90 {
  91         return candidate_check(get_param_vocab(),x);
  92 }
  93
  94 bool
  95 Action::KeyframeWaypointSet::set_param(const synfig::String& name, const Action::Param &param)
  96 {
  97         if(name=="keyframe" && param.get_type()==Param::TYPE_KEYFRAME)
  98         {
  99                 keyframe=param.get_keyframe();
 100
 101                 return true;
 102         }
 103         if(name=="model" && param.get_type()==Param::TYPE_WAYPOINTMODEL)
 104         {
 105                 waypoint_model=param.get_waypoint_model();
 106
 107                 return true;
 108         }
 109
 110         return Action::CanvasSpecific::set_param(name,param);
 111 }
 112
 113 bool
 114 Action::KeyframeWaypointSet::is_ready()const
 115 {
 116         if(keyframe.get_time()==(Time::begin()-1) || waypoint_model.is_trivial())
 117                 return false;
 118         return Action::CanvasSpecific::is_ready();
 119 }
 120
 121 void
 122 Action::KeyframeWaypointSet::prepare()
 123 {
 124         clear();
 125
 126         try { get_canvas()->keyframe_list().find(keyframe);}
 127         catch(synfig::Exception::NotFound)
 128         {
 129                 throw Error(_("Unable to find the given keyframe"));
 130         }
 131
 132         {
 133                 std::vector<synfigapp::ValueDesc> value_desc_list;
 134                 get_canvas_interface()->find_important_value_descs(value_desc_list);
 135                 while(!value_desc_list.empty())
 136                 {
 137                         process_value_desc(value_desc_list.back());
 138                         value_desc_list.pop_back();
 139                 }
 140         }
 141 }
 142
 143 void
 144 Action::KeyframeWaypointSet::process_value_desc(const synfigapp::ValueDesc& value_desc)
 145 {
 146         if(value_desc.is_value_node())
 147         {
 148                 ValueNode_Animated::Handle value_node(ValueNode_Animated::Handle::cast_dynamic(value_desc.get_value_node()));
 149
 150                 if(value_node)
 151                 {
 152                         Action::Handle action(WaypointSetSmart::create());
 153
 154                         action->set_param("canvas",get_canvas());
 155                         action->set_param("canvas_interface",get_canvas_interface());
 156                         action->set_param("value_node",ValueNode::Handle(value_node));
 157
 158                         Waypoint waypoint;
 159                         try
 160                         {
 161                                 waypoint=*value_node->find(keyframe.get_time());
 162                         }
 163                         catch(...)
 164                         {
 165                                 waypoint.set_time(keyframe.get_time());
 166                                 waypoint.set_value((*value_node)(keyframe.get_time()));
 167                         }
 168                         waypoint.apply_model(waypoint_model);
 169
 170                         action->set_param("waypoint",waypoint);
 171
 172                         assert(action->is_ready());
 173                         if(!action->is_ready())
 174                                 throw Error(Error::TYPE_NOTREADY);
 175
 176                         add_action_front(action);
 177                 }
 178         }
 179 }