synfig-studio/tags/synfigstudio_0_61_03/synfig-studio/src/synfigapp/actions/keyframeremove.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file keyframeremove.cpp
   3 **      \brief Template File
   4 **
   5 **      $Id: keyframeremove.cpp,v 1.1.1.1 2005/01/07 03:34:37 darco Exp $
   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 "keyframeremove.h"
  33 #include <synfigapp/canvasinterface.h>
  34 #include <synfig/valuenode_dynamiclist.h>
  35 #include <synfig/valuenode_animated.h>
  36 #include "activepointremove.h"
  37 #include "waypointremove.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::KeyframeRemove);
  50 ACTION_SET_NAME(Action::KeyframeRemove,"keyframe_remove");
  51 ACTION_SET_LOCAL_NAME(Action::KeyframeRemove,"Remove Keyframe");
  52 ACTION_SET_TASK(Action::KeyframeRemove,"remove");
  53 ACTION_SET_CATEGORY(Action::KeyframeRemove,Action::CATEGORY_KEYFRAME);
  54 ACTION_SET_PRIORITY(Action::KeyframeRemove,0);
  55 ACTION_SET_VERSION(Action::KeyframeRemove,"0.0");
  56 ACTION_SET_CVS_ID(Action::KeyframeRemove,"$Id: keyframeremove.cpp,v 1.1.1.1 2005/01/07 03:34:37 darco Exp $");
  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::KeyframeRemove::KeyframeRemove()
  65 {
  66         keyframe.set_time(Time::begin()-1);
  67         set_dirty(true);
  68 }
  69
  70 Action::ParamVocab
  71 Action::KeyframeRemove::get_param_vocab()
  72 {
  73         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  74
  75         ret.push_back(ParamDesc("keyframe",Param::TYPE_KEYFRAME)
  76                 .set_local_name(_("Keyframe"))
  77                 .set_desc(_("Keyframe to be removed"))
  78         );
  79
  80         return ret;
  81 }
  82
  83 bool
  84 Action::KeyframeRemove::is_canidate(const ParamList &x)
  85 {
  86         return canidate_check(get_param_vocab(),x);
  87 }
  88
  89 bool
  90 Action::KeyframeRemove::set_param(const synfig::String& name, const Action::Param &param)
  91 {
  92         if(name=="keyframe" && param.get_type()==Param::TYPE_KEYFRAME)
  93         {
  94                 keyframe=param.get_keyframe();
  95
  96                 return true;
  97         }
  98
  99         return Action::CanvasSpecific::set_param(name,param);
 100 }
 101
 102 bool
 103 Action::KeyframeRemove::is_ready()const
 104 {
 105         if(keyframe.get_time()==(Time::begin()-1))
 106                 return false;
 107         return Action::CanvasSpecific::is_ready();
 108 }
 109
 110 void
 111 Action::KeyframeRemove::prepare()
 112 {
 113         clear();
 114
 115         try { get_canvas()->keyframe_list().find(keyframe);}
 116         catch(synfig::Exception::NotFound)
 117         {
 118                 throw Error(_("Unable to find the given keyframe"));
 119         }
 120
 121
 122         {
 123                 std::vector<synfigapp::ValueDesc> value_desc_list;
 124                 get_canvas_interface()->find_important_value_descs(value_desc_list);
 125                 while(!value_desc_list.empty())
 126                 {
 127                         process_value_desc(value_desc_list.back());
 128                         value_desc_list.pop_back();
 129                 }
 130         }
 131 }
 132
 133 void
 134 Action::KeyframeRemove::process_value_desc(const synfigapp::ValueDesc& value_desc)
 135 {
 136         const synfig::Time time(keyframe.get_time());
 137
 138         if(value_desc.is_value_node())
 139         {
 140                 ValueNode::Handle value_node(value_desc.get_value_node());
 141
 142                 // If we are a dynamic list, then we need to update the ActivePoints
 143                 if(ValueNode_DynamicList::Handle::cast_dynamic(value_node))
 144                 {
 145                         ValueNode_DynamicList::Handle value_node(ValueNode_DynamicList::Handle::cast_dynamic(value_node));
 146                         int i;
 147                         for(i=0;i<value_node->link_count();i++)
 148                         try
 149                         {
 150                                 Activepoint activepoint;
 151                                 activepoint=*value_node->list[i].find(time);
 152
 153                                 synfigapp::ValueDesc value_desc(value_node,i);
 154
 155                                 Action::Handle action(ActivepointRemove::create());
 156
 157                                 action->set_param("canvas",get_canvas());
 158                                 action->set_param("canvas_interface",get_canvas_interface());
 159                                 action->set_param("value_desc",value_desc);
 160                                 action->set_param("activepoint",activepoint);
 161
 162                                 assert(action->is_ready());
 163                                 if(!action->is_ready())
 164                                         throw Error(Error::TYPE_NOTREADY);
 165
 166                                 add_action_front(action);
 167                         }
 168                         catch(...)
 169                         {
 170                         }
 171                 }
 172                 else if(ValueNode_Animated::Handle::cast_dynamic(value_node))
 173                 try
 174                 {
 175                         ValueNode_Animated::Handle value_node(ValueNode_Animated::Handle::cast_dynamic(value_node));
 176                         Waypoint waypoint;
 177                         waypoint=*value_node->find(time);
 178                         assert(waypoint.get_time()==time);
 179
 180                         Action::Handle action(WaypointRemove::create());
 181
 182                         action->set_param("canvas",get_canvas());
 183                         action->set_param("canvas_interface",get_canvas_interface());
 184                         action->set_param("value_node",ValueNode::Handle(value_node));
 185                         action->set_param("waypoint",waypoint);
 186
 187                         assert(action->is_ready());
 188                         if(!action->is_ready())
 189                                 throw Error(Error::TYPE_NOTREADY);
 190
 191                         add_action_front(action);
 192                 }
 193                 catch(...)
 194                 {
 195                 }
 196         }
 197 }
 198
 199
 200 void
 201 Action::KeyframeRemove::perform()
 202 {
 203         Action::Super::perform();
 204
 205         if(get_canvas_interface())
 206         {
 207                 get_canvas_interface()->signal_keyframe_removed()(keyframe);
 208         }
 209         else synfig::warning("CanvasInterface not set on action");
 210
 211         get_canvas()->keyframe_list().erase(keyframe);
 212 }
 213
 214 void
 215 Action::KeyframeRemove::undo()
 216 {
 217         try { get_canvas()->keyframe_list().find(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(keyframe); throw Error(_("This keyframe is already in the ValueNode"));}
 221         catch(synfig::Exception::NotFound) { }
 222
 223         Action::Super::undo();
 224
 225         get_canvas()->keyframe_list().add(keyframe);
 226
 227         if(get_canvas_interface())
 228         {
 229                 get_canvas_interface()->signal_keyframe_added()(keyframe);
 230         }
 231         else synfig::warning("CanvasInterface not set on action");
 232 }