synfig-studio/tags/stable/src/sinfgapp/actions/keyframeremove.cpp

   1 /* === S I N F 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 Robert B. Quattlebaum Jr.
   9 **
  10 **      This software and associated documentation
  11 **      are CONFIDENTIAL and PROPRIETARY property of
  12 **      the above-mentioned copyright holder.
  13 **
  14 **      You may not copy, print, publish, or in any
  15 **      other way distribute this software without
  16 **      a prior written agreement with
  17 **      the copyright holder.
  18 **      \endlegal
  19 */
  20 /* ========================================================================= */
  21
  22 /* === H E A D E R S ======================================================= */
  23
  24 #ifdef USING_PCH
  25 #       include "pch.h"
  26 #else
  27 #ifdef HAVE_CONFIG_H
  28 #       include <config.h>
  29 #endif
  30
  31 #include "keyframeremove.h"
  32 #include <sinfgapp/canvasinterface.h>
  33 #include <sinfg/valuenode_dynamiclist.h>
  34 #include <sinfg/valuenode_animated.h>
  35 #include "activepointremove.h"
  36 #include "waypointremove.h"
  37
  38 #endif
  39
  40 using namespace std;
  41 using namespace etl;
  42 using namespace sinfg;
  43 using namespace sinfgapp;
  44 using namespace Action;
  45
  46 /* === M A C R O S ========================================================= */
  47
  48 ACTION_INIT(Action::KeyframeRemove);
  49 ACTION_SET_NAME(Action::KeyframeRemove,"keyframe_remove");
  50 ACTION_SET_LOCAL_NAME(Action::KeyframeRemove,"Remove Keyframe");
  51 ACTION_SET_TASK(Action::KeyframeRemove,"remove");
  52 ACTION_SET_CATEGORY(Action::KeyframeRemove,Action::CATEGORY_KEYFRAME);
  53 ACTION_SET_PRIORITY(Action::KeyframeRemove,0);
  54 ACTION_SET_VERSION(Action::KeyframeRemove,"0.0");
  55 ACTION_SET_CVS_ID(Action::KeyframeRemove,"$Id: keyframeremove.cpp,v 1.1.1.1 2005/01/07 03:34:37 darco Exp $");
  56
  57 /* === G L O B A L S ======================================================= */
  58
  59 /* === P R O C E D U R E S ================================================= */
  60
  61 /* === M E T H O D S ======================================================= */
  62
  63 Action::KeyframeRemove::KeyframeRemove()
  64 {
  65         keyframe.set_time(Time::begin()-1);
  66         set_dirty(true);
  67 }
  68
  69 Action::ParamVocab
  70 Action::KeyframeRemove::get_param_vocab()
  71 {
  72         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  73
  74         ret.push_back(ParamDesc("keyframe",Param::TYPE_KEYFRAME)
  75                 .set_local_name(_("Keyframe"))
  76                 .set_desc(_("Keyframe to be removed"))
  77         );
  78
  79         return ret;
  80 }
  81
  82 bool
  83 Action::KeyframeRemove::is_canidate(const ParamList &x)
  84 {
  85         return canidate_check(get_param_vocab(),x);
  86 }
  87
  88 bool
  89 Action::KeyframeRemove::set_param(const sinfg::String& name, const Action::Param &param)
  90 {
  91         if(name=="keyframe" && param.get_type()==Param::TYPE_KEYFRAME)
  92         {
  93                 keyframe=param.get_keyframe();
  94
  95                 return true;
  96         }
  97
  98         return Action::CanvasSpecific::set_param(name,param);
  99 }
 100
 101 bool
 102 Action::KeyframeRemove::is_ready()const
 103 {
 104         if(keyframe.get_time()==(Time::begin()-1))
 105                 return false;
 106         return Action::CanvasSpecific::is_ready();
 107 }
 108
 109 void
 110 Action::KeyframeRemove::prepare()
 111 {
 112         clear();
 113
 114         try { get_canvas()->keyframe_list().find(keyframe);}
 115         catch(sinfg::Exception::NotFound)
 116         {
 117                 throw Error(_("Unable to find the given keyframe"));
 118         }
 119
 120
 121         {
 122                 std::vector<sinfgapp::ValueDesc> value_desc_list;
 123                 get_canvas_interface()->find_important_value_descs(value_desc_list);
 124                 while(!value_desc_list.empty())
 125                 {
 126                         process_value_desc(value_desc_list.back());
 127                         value_desc_list.pop_back();
 128                 }
 129         }
 130 }
 131
 132 void
 133 Action::KeyframeRemove::process_value_desc(const sinfgapp::ValueDesc& value_desc)
 134 {
 135         const sinfg::Time time(keyframe.get_time());
 136
 137         if(value_desc.is_value_node())
 138         {
 139                 ValueNode::Handle value_node(value_desc.get_value_node());
 140
 141                 // If we are a dynamic list, then we need to update the ActivePoints
 142                 if(ValueNode_DynamicList::Handle::cast_dynamic(value_node))
 143                 {
 144                         ValueNode_DynamicList::Handle value_node(ValueNode_DynamicList::Handle::cast_dynamic(value_node));
 145                         int i;
 146                         for(i=0;i<value_node->link_count();i++)
 147                         try
 148                         {
 149                                 Activepoint activepoint;
 150                                 activepoint=*value_node->list[i].find(time);
 151
 152                                 sinfgapp::ValueDesc value_desc(value_node,i);
 153
 154                                 Action::Handle action(ActivepointRemove::create());
 155
 156                                 action->set_param("canvas",get_canvas());
 157                                 action->set_param("canvas_interface",get_canvas_interface());
 158                                 action->set_param("value_desc",value_desc);
 159                                 action->set_param("activepoint",activepoint);
 160
 161                                 assert(action->is_ready());
 162                                 if(!action->is_ready())
 163                                         throw Error(Error::TYPE_NOTREADY);
 164
 165                                 add_action_front(action);
 166                         }
 167                         catch(...)
 168                         {
 169                         }
 170                 }
 171                 else if(ValueNode_Animated::Handle::cast_dynamic(value_node))
 172                 try
 173                 {
 174                         ValueNode_Animated::Handle value_node(ValueNode_Animated::Handle::cast_dynamic(value_node));
 175                         Waypoint waypoint;
 176                         waypoint=*value_node->find(time);
 177                         assert(waypoint.get_time()==time);
 178
 179                         Action::Handle action(WaypointRemove::create());
 180
 181                         action->set_param("canvas",get_canvas());
 182                         action->set_param("canvas_interface",get_canvas_interface());
 183                         action->set_param("value_node",ValueNode::Handle(value_node));
 184                         action->set_param("waypoint",waypoint);
 185
 186                         assert(action->is_ready());
 187                         if(!action->is_ready())
 188                                 throw Error(Error::TYPE_NOTREADY);
 189
 190                         add_action_front(action);
 191                 }
 192                 catch(...)
 193                 {
 194                 }
 195         }
 196 }
 197
 198
 199 void
 200 Action::KeyframeRemove::perform()
 201 {
 202         Action::Super::perform();
 203
 204         if(get_canvas_interface())
 205         {
 206                 get_canvas_interface()->signal_keyframe_removed()(keyframe);
 207         }
 208         else sinfg::warning("CanvasInterface not set on action");
 209
 210         get_canvas()->keyframe_list().erase(keyframe);
 211 }
 212
 213 void
 214 Action::KeyframeRemove::undo()
 215 {
 216         try { get_canvas()->keyframe_list().find(keyframe.get_time()); throw Error(_("A Keyframe already exists at this point in time"));}
 217         catch(sinfg::Exception::NotFound) { }
 218
 219         try { get_canvas()->keyframe_list().find(keyframe); throw Error(_("This keyframe is already in the ValueNode"));}
 220         catch(sinfg::Exception::NotFound) { }
 221
 222         Action::Super::undo();
 223
 224         get_canvas()->keyframe_list().add(keyframe);
 225
 226         if(get_canvas_interface())
 227         {
 228                 get_canvas_interface()->signal_keyframe_added()(keyframe);
 229         }
 230         else sinfg::warning("CanvasInterface not set on action");
 231 }