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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file keyframeduplicate.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 "keyframeduplicate.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::KeyframeDuplicate);
  52 ACTION_SET_NAME(Action::KeyframeDuplicate,"keyframe_duplicate");
  53 ACTION_SET_LOCAL_NAME(Action::KeyframeDuplicate,N_("Duplicate Keyframe"));
  54 ACTION_SET_TASK(Action::KeyframeDuplicate,"duplicate");
  55 ACTION_SET_CATEGORY(Action::KeyframeDuplicate,Action::CATEGORY_KEYFRAME);
  56 ACTION_SET_PRIORITY(Action::KeyframeDuplicate,0);
  57 ACTION_SET_VERSION(Action::KeyframeDuplicate,"0.0");
  58 ACTION_SET_CVS_ID(Action::KeyframeDuplicate,"$Id$");
  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::KeyframeDuplicate::KeyframeDuplicate()
  67 {
  68         new_keyframe.set_time(Time::begin()-1);
  69         keyframe.set_time(Time::begin()-1);
  70         set_dirty(true);
  71 }
  72
  73 Action::ParamVocab
  74 Action::KeyframeDuplicate::get_param_vocab()
  75 {
  76         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  77
  78         ret.push_back(ParamDesc("keyframe",Param::TYPE_KEYFRAME)
  79                 .set_local_name(_("Keyframe"))
  80                 .set_desc(_("Keyframe to be duplicated"))
  81         );
  82
  83         ret.push_back(ParamDesc("time",Param::TYPE_TIME)
  84                 .set_local_name(_("Time"))
  85         );
  86
  87         return ret;
  88 }
  89
  90 bool
  91 Action::KeyframeDuplicate::is_candidate(const ParamList &x)
  92 {
  93         return candidate_check(get_param_vocab(),x);
  94 }
  95
  96 bool
  97 Action::KeyframeDuplicate::set_param(const synfig::String& name, const Action::Param &param)
  98 {
  99         if(name=="keyframe" && param.get_type()==Param::TYPE_KEYFRAME)
 100         {
 101                 keyframe=param.get_keyframe();
 102                 new_keyframe.set_description(keyframe.get_description()+_(" (Duplicate)"));
 103
 104                 return true;
 105         }
 106         if(name=="time" && param.get_type()==Param::TYPE_TIME)
 107         {
 108                 new_keyframe.set_time(param.get_time());
 109
 110                 return true;
 111         }
 112
 113         return Action::CanvasSpecific::set_param(name,param);
 114 }
 115
 116 bool
 117 Action::KeyframeDuplicate::is_ready()const
 118 {
 119         if(keyframe.get_time()==(Time::begin()-1) || new_keyframe.get_time()==(Time::begin()-1))
 120                 return false;
 121         return Action::CanvasSpecific::is_ready();
 122 }
 123
 124 void
 125 Action::KeyframeDuplicate::prepare()
 126 {
 127         clear();
 128
 129         const synfig::Time old_time=keyframe.get_time();
 130         const synfig::Time new_time=new_keyframe.get_time();
 131
 132         try { get_canvas()->keyframe_list().find(keyframe);}
 133         catch(synfig::Exception::NotFound)
 134         {
 135                 throw Error(_("Unable to find the given keyframe"));
 136         }
 137
 138         try { if(get_canvas()->keyframe_list().find(new_time)!=get_canvas()->keyframe_list().end()) throw Error(_("A Keyframe already exists at this point in time"));}
 139         catch(...) { }
 140
 141         // If the times are different, then we
 142         // will need to romp through the valuenodes
 143         // and add actions to update their values.
 144         if(new_time!=old_time)
 145         {
 146                 std::vector<synfigapp::ValueDesc> value_desc_list;
 147                 get_canvas_interface()->find_important_value_descs(value_desc_list);
 148                 while(!value_desc_list.empty())
 149                 {
 150                         process_value_desc(value_desc_list.back());
 151                         value_desc_list.pop_back();
 152                 }
 153         }
 154 }
 155
 156 void
 157 Action::KeyframeDuplicate::process_value_desc(const synfigapp::ValueDesc& value_desc)
 158 {
 159         const synfig::Time old_time=keyframe.get_time();
 160         const synfig::Time new_time=new_keyframe.get_time();
 161
 162         if(value_desc.is_value_node())
 163         {
 164                 ValueNode::Handle value_node(value_desc.get_value_node());
 165
 166                 // If we are a dynamic list, then we need to update the ActivePoints
 167                 if(ValueNode_DynamicList::Handle::cast_dynamic(value_node))
 168                 {
 169                         ValueNode_DynamicList::Handle value_node_dynamic(ValueNode_DynamicList::Handle::cast_dynamic(value_node));
 170                         int i;
 171
 172                         for(i=0;i<value_node_dynamic->link_count();i++)
 173                         {
 174                                 synfigapp::ValueDesc value_desc(value_node_dynamic,i);
 175                                 Activepoint activepoint(value_node_dynamic->list[i].new_activepoint_at_time(old_time));
 176                                 activepoint.set_time(new_time);
 177
 178                                 Action::Handle action(ActivepointSetSmart::create());
 179
 180                                 action->set_param("canvas",get_canvas());
 181                                 action->set_param("canvas_interface",get_canvas_interface());
 182                                 action->set_param("value_desc",value_desc);
 183                                 action->set_param("activepoint",activepoint);
 184
 185                                 assert(action->is_ready());
 186                                 if(!action->is_ready())
 187                                         throw Error(Error::TYPE_NOTREADY);
 188
 189                                 add_action_front(action);
 190                         }
 191                 }
 192                 else if(ValueNode_Animated::Handle::cast_dynamic(value_node))
 193                 {
 194                         ValueNode_Animated::Handle value_node_animated(ValueNode_Animated::Handle::cast_dynamic(value_node));
 195                         Waypoint waypoint(value_node_animated->new_waypoint_at_time(old_time));
 196                         waypoint.set_time(new_time);
 197
 198                         Action::Handle action(WaypointSetSmart::create());
 199
 200                         action->set_param("canvas",get_canvas());
 201                         action->set_param("canvas_interface",get_canvas_interface());
 202                         action->set_param("value_node",ValueNode::Handle(value_node_animated));
 203                         action->set_param("waypoint",waypoint);
 204
 205                         assert(action->is_ready());
 206                         if(!action->is_ready())
 207                                 throw Error(Error::TYPE_NOTREADY);
 208
 209                         add_action_front(action);
 210                 }
 211         }
 212 }
 213
 214 void
 215 Action::KeyframeDuplicate::perform()
 216 {
 217         try { get_canvas()->keyframe_list().find(new_keyframe.get_time()); throw Error(_("A Keyframe already exists at this point in time"));}
 218         catch(synfig::Exception::NotFound) { }
 219
 220         try { get_canvas()->keyframe_list().find(new_keyframe); throw Error(_("This keyframe is already in the ValueNode"));}
 221         catch(synfig::Exception::NotFound) { }
 222
 223         Action::Super::perform();
 224
 225         get_canvas()->keyframe_list().add(new_keyframe);
 226
 227         if(get_canvas_interface())
 228         {
 229                 get_canvas_interface()->signal_keyframe_added()(new_keyframe);
 230         }
 231         else synfig::warning("CanvasInterface not set on action");
 232 }
 233
 234 void
 235 Action::KeyframeDuplicate::undo()
 236 {
 237         Action::Super::undo();
 238
 239         if(get_canvas_interface())
 240         {
 241                 get_canvas_interface()->signal_keyframe_removed()(new_keyframe);
 242         }
 243         else synfig::warning("CanvasInterface not set on action");
 244
 245         get_canvas()->keyframe_list().erase(new_keyframe);
 246 }