synfig-studio/tags/stable/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 **  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 "activepointseton.h"
  34 #include "activepointsetsmart.h"
  35 #include "valuenodelinkconnect.h"
  36 #include "valuenodereplace.h"
  37
  38 #include "activepointset.h"
  39 #include "activepointadd.h"
  40
  41 #include "valuedescconnect.h"
  42 #include <synfigapp/canvasinterface.h>
  43
  44 #include <synfigapp/general.h>
  45
  46 #endif
  47
  48 using namespace std;
  49 using namespace etl;
  50 using namespace synfig;
  51 using namespace synfigapp;
  52 using namespace Action;
  53
  54 /* === M A C R O S ========================================================= */
  55
  56 ACTION_INIT(Action::ActivepointSetOn);
  57 ACTION_SET_NAME(Action::ActivepointSetOn,"activepoint_set_on");
  58 ACTION_SET_LOCAL_NAME(Action::ActivepointSetOn,N_("Mark Activepoint as \"On\""));
  59 ACTION_SET_TASK(Action::ActivepointSetOn,"set_on");
  60 ACTION_SET_CATEGORY(Action::ActivepointSetOn,Action::CATEGORY_ACTIVEPOINT|Action::CATEGORY_VALUEDESC);
  61 ACTION_SET_PRIORITY(Action::ActivepointSetOn,-10);
  62 ACTION_SET_VERSION(Action::ActivepointSetOn,"0.0");
  63 ACTION_SET_CVS_ID(Action::ActivepointSetOn,"$Id$");
  64
  65 /* === G L O B A L S ======================================================= */
  66
  67 /* === P R O C E D U R E S ================================================= */
  68
  69 /* === M E T H O D S ======================================================= */
  70
  71 Action::ActivepointSetOn::ActivepointSetOn()
  72 {
  73         activepoint.set_time(Time::begin()-1);
  74         time_set=false;
  75         set_dirty(true);
  76 }
  77
  78 Action::ParamVocab
  79 Action::ActivepointSetOn::get_param_vocab()
  80 {
  81         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  82
  83         ret.push_back(ParamDesc("value_desc",Param::TYPE_VALUEDESC)
  84                 .set_local_name(_("ValueDesc"))
  85         );
  86
  87         ret.push_back(ParamDesc("activepoint",Param::TYPE_ACTIVEPOINT)
  88                 .set_local_name(_("Activepoint"))
  89                 .set_optional()
  90         );
  91
  92         ret.push_back(ParamDesc("time",Param::TYPE_TIME)
  93                 .set_local_name(_("Time"))
  94                 .set_optional()
  95         );
  96
  97         return ret;
  98 }
  99
 100 bool
 101 Action::ActivepointSetOn::is_candidate(const ParamList &x)
 102 {
 103         if (!candidate_check(get_param_vocab(),x))
 104                 return false;
 105
 106         ValueDesc value_desc(x.find("value_desc")->second.get_value_desc());
 107
 108         if (!(value_desc.parent_is_value_node() &&
 109                   // We need a dynamic list.
 110                   ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node())))
 111                 return false;
 112
 113         Canvas::Handle canvas(x.find("canvas")->second.get_canvas());
 114
 115         // We are only a candidate if this canvas is animated.
 116         return (canvas->rend_desc().get_time_start() != canvas->rend_desc().get_time_end() &&
 117                         // We need either an activepoint or a time.
 118                         (x.count("activepoint") || x.count("time")));
 119 }
 120
 121 bool
 122 Action::ActivepointSetOn::set_param(const synfig::String& name, const Action::Param &param)
 123 {
 124         if(name=="value_desc" && param.get_type()==Param::TYPE_VALUEDESC)
 125         {
 126                 value_desc=param.get_value_desc();
 127
 128                 if(!value_desc.parent_is_value_node())
 129                         return false;
 130
 131                 value_node=ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node());
 132
 133                 if(!value_node)
 134                         return false;
 135
 136                 index=value_desc.get_index();
 137
 138                 if(time_set)
 139                         calc_activepoint();
 140
 141                 return true;
 142         }
 143         if(name=="activepoint" && param.get_type()==Param::TYPE_ACTIVEPOINT && !time_set)
 144         {
 145                 activepoint=param.get_activepoint();
 146
 147                 return true;
 148         }
 149         if(name=="time" && param.get_type()==Param::TYPE_TIME && activepoint.get_time()==Time::begin()-1)
 150         {
 151                 activepoint.set_time(param.get_time());
 152                 time_set=true;
 153
 154                 if(value_node)
 155                         calc_activepoint();
 156
 157                 return true;
 158         }
 159
 160         return Action::CanvasSpecific::set_param(name,param);
 161 }
 162
 163 bool
 164 Action::ActivepointSetOn::is_ready()const
 165 {
 166         if(!value_node)
 167                 synfig::error("Missing value_node");
 168
 169         if(activepoint.get_time()==(Time::begin()-1))
 170                 synfig::error("Missing activepoint");
 171
 172         if(!value_node || activepoint.get_time()==(Time::begin()-1))
 173                 return false;
 174         return Action::CanvasSpecific::is_ready();
 175 }
 176
 177 // This function is called if a time is specified, but not
 178 // a activepoint. In this case, we need to calculate the value
 179 // of the activepoint
 180 void
 181 Action::ActivepointSetOn::calc_activepoint()
 182 {
 183         const Time time(activepoint.get_time());
 184
 185         try { activepoint=*value_node->list[index].find(time); }
 186         catch(...)
 187         {
 188                 activepoint.set_time(time);
 189                 activepoint.set_state(value_node->list[index].status_at_time(time));
 190                 activepoint.set_priority(0);
 191         }
 192 }
 193
 194 void
 195 Action::ActivepointSetOn::prepare()
 196 {
 197         clear();
 198
 199         // Turn the activepoint off
 200         activepoint.set_state(true);
 201
 202         Action::Handle action(ActivepointSetSmart::create());
 203
 204         action->set_param("edit_mode",get_edit_mode());
 205         action->set_param("canvas",get_canvas());
 206         action->set_param("canvas_interface",get_canvas_interface());
 207         action->set_param("value_desc",value_desc);
 208         action->set_param("activepoint",activepoint);
 209
 210         assert(action->is_ready());
 211         if(!action->is_ready())
 212                 throw Error(Error::TYPE_NOTREADY);
 213
 214         add_action_front(action);
 215
 216 }