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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file activepointseton.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 "activepointseton.h"
  33 #include "activepointsetsmart.h"
  34 #include "valuenodelinkconnect.h"
  35 #include "valuenodereplace.h"
  36
  37 #include "activepointset.h"
  38 #include "activepointadd.h"
  39
  40 #include "valuedescconnect.h"
  41 #include <synfigapp/canvasinterface.h>
  42
  43 #include <synfigapp/general.h>
  44
  45 #endif
  46
  47 using namespace std;
  48 using namespace etl;
  49 using namespace synfig;
  50 using namespace synfigapp;
  51 using namespace Action;
  52
  53 /* === M A C R O S ========================================================= */
  54
  55 ACTION_INIT(Action::ActivepointSetOn);
  56 ACTION_SET_NAME(Action::ActivepointSetOn,"activepoint_set_on");
  57 ACTION_SET_LOCAL_NAME(Action::ActivepointSetOn,N_("Mark Activepoint as \"On\""));
  58 ACTION_SET_TASK(Action::ActivepointSetOn,"set_on");
  59 ACTION_SET_CATEGORY(Action::ActivepointSetOn,Action::CATEGORY_ACTIVEPOINT|Action::CATEGORY_VALUEDESC);
  60 ACTION_SET_PRIORITY(Action::ActivepointSetOn,-10);
  61 ACTION_SET_VERSION(Action::ActivepointSetOn,"0.0");
  62 ACTION_SET_CVS_ID(Action::ActivepointSetOn,"$Id$");
  63
  64 /* === G L O B A L S ======================================================= */
  65
  66 /* === P R O C E D U R E S ================================================= */
  67
  68 /* === M E T H O D S ======================================================= */
  69
  70 Action::ActivepointSetOn::ActivepointSetOn()
  71 {
  72         activepoint.set_time(Time::begin()-1);
  73         time_set=false;
  74         set_dirty(true);
  75 }
  76
  77 Action::ParamVocab
  78 Action::ActivepointSetOn::get_param_vocab()
  79 {
  80         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  81
  82         ret.push_back(ParamDesc("value_desc",Param::TYPE_VALUEDESC)
  83                 .set_local_name(_("ValueDesc"))
  84         );
  85
  86         ret.push_back(ParamDesc("activepoint",Param::TYPE_ACTIVEPOINT)
  87                 .set_local_name(_("Activepoint"))
  88                 .set_optional()
  89         );
  90
  91         ret.push_back(ParamDesc("time",Param::TYPE_TIME)
  92                 .set_local_name(_("Time"))
  93                 .set_optional()
  94         );
  95
  96         return ret;
  97 }
  98
  99 bool
 100 Action::ActivepointSetOn::is_candidate(const ParamList &x)
 101 {
 102         if(candidate_check(get_param_vocab(),x))
 103         {
 104                 ValueDesc value_desc(x.find("value_desc")->second.get_value_desc());
 105                 if(!value_desc.parent_is_value_node() || !ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node()))
 106                         return false;
 107
 108                 // We are only a candidate if this canvas is animated.
 109                 Canvas::Handle canvas(x.find("canvas")->second.get_canvas());
 110                 if(canvas->rend_desc().get_time_start()==canvas->rend_desc().get_time_end())
 111                         return false;
 112
 113                 // We need either a activepoint or a time.
 114                 if(x.count("activepoint") || x.count("time"))
 115                         return true;
 116         }
 117         return false;
 118 }
 119
 120 bool
 121 Action::ActivepointSetOn::set_param(const synfig::String& name, const Action::Param &param)
 122 {
 123         if(name=="value_desc" && param.get_type()==Param::TYPE_VALUEDESC)
 124         {
 125                 value_desc=param.get_value_desc();
 126
 127                 if(!value_desc.parent_is_value_node())
 128                         return false;
 129
 130                 value_node=ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node());
 131
 132                 if(!value_node)
 133                         return false;
 134
 135                 index=value_desc.get_index();
 136
 137                 if(time_set)
 138                         calc_activepoint();
 139
 140                 return true;
 141         }
 142         if(name=="activepoint" && param.get_type()==Param::TYPE_ACTIVEPOINT && !time_set)
 143         {
 144                 activepoint=param.get_activepoint();
 145
 146                 return true;
 147         }
 148         if(name=="time" && param.get_type()==Param::TYPE_TIME && activepoint.get_time()==Time::begin()-1)
 149         {
 150                 activepoint.set_time(param.get_time());
 151                 time_set=true;
 152
 153                 if(value_node)
 154                         calc_activepoint();
 155
 156                 return true;
 157         }
 158
 159         return Action::CanvasSpecific::set_param(name,param);
 160 }
 161
 162 bool
 163 Action::ActivepointSetOn::is_ready()const
 164 {
 165         if(!value_node)
 166                 synfig::error("Missing value_node");
 167
 168         if(activepoint.get_time()==(Time::begin()-1))
 169                 synfig::error("Missing activepoint");
 170
 171         if(!value_node || activepoint.get_time()==(Time::begin()-1))
 172                 return false;
 173         return Action::CanvasSpecific::is_ready();
 174 }
 175
 176 // This function is called if a time is specified, but not
 177 // a activepoint. In this case, we need to calculate the value
 178 // of the activepoint
 179 void
 180 Action::ActivepointSetOn::calc_activepoint()
 181 {
 182         const Time time(activepoint.get_time());
 183
 184         try { activepoint=*value_node->list[index].find(time); }
 185         catch(...)
 186         {
 187                 activepoint.set_time(time);
 188                 activepoint.set_state(value_node->list[index].status_at_time(time));
 189                 activepoint.set_priority(0);
 190         }
 191 }
 192
 193 void
 194 Action::ActivepointSetOn::prepare()
 195 {
 196         clear();
 197
 198         // Turn the activepoint off
 199         activepoint.set_state(true);
 200
 201         Action::Handle action(ActivepointSetSmart::create());
 202
 203         action->set_param("edit_mode",get_edit_mode());
 204         action->set_param("canvas",get_canvas());
 205         action->set_param("canvas_interface",get_canvas_interface());
 206         action->set_param("value_desc",value_desc);
 207         action->set_param("activepoint",activepoint);
 208
 209         assert(action->is_ready());
 210         if(!action->is_ready())
 211                 throw Error(Error::TYPE_NOTREADY);
 212
 213         add_action_front(action);
 214
 215 }