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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file waypointadd.cpp
   3 **      \brief Template File
   4 **
   5 **      $Id$
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
   9 **  Copyright (c) 2008 Chris Moore
  10 **
  11 **      This package is free software; you can redistribute it and/or
  12 **      modify it under the terms of the GNU General Public License as
  13 **      published by the Free Software Foundation; either version 2 of
  14 **      the License, or (at your option) any later version.
  15 **
  16 **      This package is distributed in the hope that it will be useful,
  17 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19 **      General Public License for more details.
  20 **      \endlegal
  21 */
  22 /* ========================================================================= */
  23
  24 /* === H E A D E R S ======================================================= */
  25
  26 #ifdef USING_PCH
  27 #       include "pch.h"
  28 #else
  29 #ifdef HAVE_CONFIG_H
  30 #       include <config.h>
  31 #endif
  32
  33 #include "waypointadd.h"
  34 #include <synfigapp/canvasinterface.h>
  35 #include <synfigapp/main.h>
  36
  37 #include <synfigapp/general.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::WaypointAdd);
  50 ACTION_SET_NAME(Action::WaypointAdd,"waypoint_add");
  51 ACTION_SET_LOCAL_NAME(Action::WaypointAdd,N_("Add Waypoint"));
  52 ACTION_SET_TASK(Action::WaypointAdd,"add");
  53 ACTION_SET_CATEGORY(Action::WaypointAdd,Action::CATEGORY_WAYPOINT);
  54 ACTION_SET_PRIORITY(Action::WaypointAdd,0);
  55 ACTION_SET_VERSION(Action::WaypointAdd,"0.0");
  56 ACTION_SET_CVS_ID(Action::WaypointAdd,"$Id$");
  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::WaypointAdd::WaypointAdd()
  65 {
  66         waypoint.set_time(Time::begin()-1);
  67         time_set=false;
  68         set_dirty(true);
  69 }
  70
  71 Action::ParamVocab
  72 Action::WaypointAdd::get_param_vocab()
  73 {
  74         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  75
  76         ret.push_back(ParamDesc("value_node",Param::TYPE_VALUENODE)
  77                 .set_local_name(_("Destination ValueNode (Animated)"))
  78         );
  79
  80         ret.push_back(ParamDesc("waypoint",Param::TYPE_WAYPOINT)
  81                 .set_local_name(_("New Waypoint"))
  82                 .set_desc(_("Waypoint to be added"))
  83                 .set_optional()
  84         );
  85
  86         ret.push_back(ParamDesc("time",Param::TYPE_TIME)
  87                 .set_local_name(_("Time"))
  88                 .set_desc(_("Time where waypoint is to be added"))
  89                 .set_optional()
  90         );
  91
  92         return ret;
  93 }
  94
  95 bool
  96 Action::WaypointAdd::is_candidate(const ParamList &x)
  97 {
  98         return (candidate_check(get_param_vocab(),x) &&
  99                         // We need an animated valuenode.
 100                         ValueNode_Animated::Handle::cast_dynamic(x.find("value_node")->second.get_value_node()) &&
 101                         // We need either a waypoint or a time.
 102                         (x.count("waypoint") || x.count("time")));
 103 }
 104
 105 bool
 106 Action::WaypointAdd::set_param(const synfig::String& name, const Action::Param &param)
 107 {
 108         if(name=="value_node" && param.get_type()==Param::TYPE_VALUENODE)
 109         {
 110                 value_node=ValueNode_Animated::Handle::cast_dynamic(param.get_value_node());
 111                 if(time_set)
 112                         calc_waypoint();
 113
 114                 return static_cast<bool>(value_node);
 115         }
 116         if(name=="waypoint" && param.get_type()==Param::TYPE_WAYPOINT && !time_set)
 117         {
 118                 waypoint=param.get_waypoint();
 119
 120                 return true;
 121         }
 122         if(name=="time" && param.get_type()==Param::TYPE_TIME && waypoint.get_time()==Time::begin()-1)
 123         {
 124                 waypoint.set_time(param.get_time());
 125                 time_set=true;
 126
 127                 if(value_node)
 128                         calc_waypoint();
 129
 130                 return true;
 131         }
 132
 133         return Action::CanvasSpecific::set_param(name,param);
 134 }
 135
 136 bool
 137 Action::WaypointAdd::is_ready()const
 138 {
 139         if(!value_node || waypoint.get_time()==(Time::begin()-1))
 140                 return false;
 141         return Action::CanvasSpecific::is_ready();
 142 }
 143
 144 // This function is called if a time is specified, but not
 145 // a waypoint. In this case, we need to calculate the value
 146 // of the waypoint
 147 void
 148 Action::WaypointAdd::calc_waypoint()
 149 {
 150         Time time=waypoint.get_time();
 151         Waypoint original(waypoint);
 152         waypoint=value_node->new_waypoint_at_time(time);
 153         waypoint.mimic(original);
 154         waypoint.set_before(synfigapp::Main::get_interpolation());
 155         waypoint.set_after(synfigapp::Main::get_interpolation());
 156
 157 /*
 158         ValueNode_Animated::WaypointList &waypoint_list(value_node->waypoint_list());
 159         ValueNode_Animated::WaypointList::iterator iter;
 160
 161         if(waypoint_list.empty())
 162         {
 163                 waypoint.set_value((*value_node)(time));
 164                 return;
 165         }
 166
 167         ValueNode_Animated::WaypointList::iterator closest=waypoint_list.begin();
 168
 169         for(iter=waypoint_list.begin();iter!=waypoint_list.end();++iter)
 170         {
 171                 const Real dist(abs(iter->get_time()-time));
 172                 if(dist<abs(closest->get_time()-time))
 173                         closest=iter;
 174         }
 175         if(!closest->is_static())
 176                 waypoint.set_value_node(closest->get_value_node());
 177         else
 178                 waypoint.set_value((*value_node)(time));
 179         */
 180 }
 181
 182 void
 183 Action::WaypointAdd::perform()
 184 {
 185         try { value_node->find(waypoint.get_time()); throw Error(_("A Waypoint already exists at this point in time (%s)"),waypoint.get_time().get_string().c_str());}
 186         catch(synfig::Exception::NotFound) { }
 187
 188         try { if(value_node->find(waypoint)!=value_node->waypoint_list().end()) throw Error(_("This waypoint is already in the ValueNode"));}
 189         catch(synfig::Exception::NotFound) { }
 190
 191         value_node->add(waypoint);
 192
 193         value_node->changed();
 194 /*_if(get_canvas_interface())
 195         {
 196                 get_canvas_interface()->signal_value_node_changed()(value_node);
 197         }
 198         else synfig::warning("CanvasInterface not set on action");*/
 199 }
 200
 201 void
 202 Action::WaypointAdd::undo()
 203 {
 204         value_node->erase(waypoint);
 205
 206         value_node->changed();
 207 /*_if(get_canvas_interface())
 208         {
 209                 get_canvas_interface()->signal_value_node_changed()(value_node);
 210         }
 211         else synfig::warning("CanvasInterface not set on action");*/
 212 }