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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file keyframesetdelta.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 "keyframesetdelta.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 #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::KeyframeSetDelta);
  50 ACTION_SET_NAME(Action::KeyframeSetDelta,"keyframe_set_delta");
  51 ACTION_SET_LOCAL_NAME(Action::KeyframeSetDelta,"Set Keyframe Delta");
  52 ACTION_SET_TASK(Action::KeyframeSetDelta,"set");
  53 ACTION_SET_CATEGORY(Action::KeyframeSetDelta,Action::CATEGORY_KEYFRAME|Action::CATEGORY_HIDDEN);
  54 ACTION_SET_PRIORITY(Action::KeyframeSetDelta,0);
  55 ACTION_SET_VERSION(Action::KeyframeSetDelta,"0.0");
  56 ACTION_SET_CVS_ID(Action::KeyframeSetDelta,"$Id$");
  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::KeyframeSetDelta::KeyframeSetDelta():
  65         delta(0)
  66 {
  67         keyframe.set_time(Time::end());
  68         set_dirty(false);
  69 }
  70
  71 Action::ParamVocab
  72 Action::KeyframeSetDelta::get_param_vocab()
  73 {
  74         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  75
  76         ret.push_back(ParamDesc("keyframe",Param::TYPE_KEYFRAME)
  77                 .set_local_name(_("Keyframe"))
  78         );
  79         ret.push_back(ParamDesc("delta",Param::TYPE_KEYFRAME)
  80                 .set_local_name(_("Delta"))
  81         );
  82
  83         return ret;
  84 }
  85
  86 bool
  87 Action::KeyframeSetDelta::is_candidate(const ParamList &x)
  88 {
  89         return candidate_check(get_param_vocab(),x);
  90 }
  91
  92 bool
  93 Action::KeyframeSetDelta::set_param(const synfig::String& name, const Action::Param &param)
  94 {
  95         if(name=="keyframe" && param.get_type()==Param::TYPE_KEYFRAME)
  96         {
  97                 keyframe=param.get_keyframe();
  98                 return true;
  99         }
 100         if(name=="delta" && param.get_type()==Param::TYPE_TIME)
 101         {
 102                 delta=param.get_time();
 103                 return true;
 104         }
 105
 106         return Action::CanvasSpecific::set_param(name,param);
 107 }
 108
 109 bool
 110 Action::KeyframeSetDelta::is_ready()const
 111 {
 112         if(keyframe.get_time()==Time::end())
 113                 return false;
 114         return Action::CanvasSpecific::is_ready();
 115 }
 116
 117 void
 118 Action::KeyframeSetDelta::prepare()
 119 {
 120         clear();
 121         value_desc_list.clear();
 122         get_canvas_interface()->find_important_value_descs(value_desc_list);
 123
 124
 125         Time time(get_canvas()->keyframe_list().find(keyframe)->get_time());
 126
 127         std::vector<synfigapp::ValueDesc>::iterator iter;
 128                 DEBUGPOINT();
 129         for(iter=value_desc_list.begin();iter!=value_desc_list.end();++iter)
 130         {
 131                 ValueDesc& value_desc(*iter);
 132                 ValueNode_Animated::Handle value_node(
 133                         ValueNode_Animated::Handle::cast_dynamic(value_desc.get_value_node())
 134                 );
 135
 136                 if(!value_node)
 137                         continue;
 138
 139                 try{
 140                         value_node->find(time);
 141                         // if we got to this point, then we know that
 142                         // a waypoint already exists here and we don't
 143                         // need to add a new one.
 144                         continue;
 145                 }catch(...)
 146                 {
 147                         // Make sure there is something previous
 148                         try{
 149                                 value_node->find_prev(time);
 150                         }catch(...)
 151                         {
 152                                 continue;
 153                         }
 154                 }
 155                 Action::Handle action(Action::create("waypoint_set_smart"));
 156
 157                 action->set_param("canvas",get_canvas());
 158                 action->set_param("canvas_interface",get_canvas_interface());
 159                 action->set_param("value_node",ValueNode::Handle::cast_static(value_node));
 160
 161                 action->set_param("time",time);
 162
 163                 assert(action->is_ready());
 164                 if(!action->is_ready())
 165                         throw Error(Error::TYPE_NOTREADY);
 166
 167                 add_action(action);
 168         }
 169 }
 170
 171 void
 172 Action::KeyframeSetDelta::perform()
 173 {
 174         if(!delta)
 175                 return;
 176         Action::Super::perform();
 177
 178 //      Time location(keyframe.get_time());
 179         Time location(get_canvas()->keyframe_list().find(keyframe)->get_time());
 180         Time delta(delta);
 181
 182         get_canvas()->keyframe_list().insert_time(location,delta);
 183
 184         std::vector<synfigapp::ValueDesc>::iterator iter;
 185         for(iter=value_desc_list.begin();iter!=value_desc_list.end();++iter)
 186         {
 187                 ValueDesc& value_desc(*iter);
 188                 if(!value_desc.is_value_node())
 189                         continue;
 190                 ValueNode_Animated::Handle animated(
 191                         ValueNode_Animated::Handle::cast_dynamic(value_desc.get_value_node())
 192                 );
 193                 if(animated)
 194                 {
 195                         animated->insert_time(location,delta);
 196                         continue;
 197                 }
 198                 ValueNode_DynamicList::Handle dyn_list(
 199                         ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_value_node())
 200                 );
 201                 if(dyn_list)
 202                 {
 203                         dyn_list->insert_time(location,delta);
 204                         continue;
 205                 }
 206         }
 207
 208         // Signal that something has changed
 209         if(get_canvas_interface())
 210         {
 211                 get_canvas_interface()->signal_keyframe_changed()(keyframe);
 212         }
 213         else synfig::warning("CanvasInterface not set on action");
 214 }
 215
 216 void
 217 Action::KeyframeSetDelta::undo()
 218 {
 219         if(!delta)
 220                 return;
 221
 222 //      Time location(keyframe.get_time());
 223         Time location(get_canvas()->keyframe_list().find(keyframe)->get_time());
 224         Time delta(-delta);
 225
 226         get_canvas()->keyframe_list().insert_time(location,delta);
 227
 228         std::vector<synfigapp::ValueDesc>::iterator iter;
 229         for(iter=value_desc_list.begin();iter!=value_desc_list.end();++iter)
 230         {
 231                 ValueDesc& value_desc(*iter);
 232                 if(!value_desc.is_value_node())
 233                         continue;
 234                 ValueNode_Animated::Handle animated(
 235                         ValueNode_Animated::Handle::cast_dynamic(value_desc.get_value_node())
 236                 );
 237                 if(animated)
 238                 {
 239                         animated->insert_time(location,delta);
 240                         continue;
 241                 }
 242                 ValueNode_DynamicList::Handle dyn_list(
 243                         ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_value_node())
 244                 );
 245                 if(dyn_list)
 246                 {
 247                         dyn_list->insert_time(location,delta);
 248                         continue;
 249                 }
 250         }
 251
 252         Action::Super::undo();
 253
 254         // Signal that something has changed
 255         if(get_canvas_interface())
 256         {
 257                 get_canvas_interface()->signal_keyframe_changed()(keyframe);
 258         }
 259         else synfig::warning("CanvasInterface not set on action");
 260 }