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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file waypointremove.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 "waypointremove.h"
  33 #include <synfigapp/canvasinterface.h>
  34
  35 #include <synfigapp/general.h>
  36
  37 #endif
  38
  39 using namespace std;
  40 using namespace etl;
  41 using namespace synfig;
  42 using namespace synfigapp;
  43 using namespace Action;
  44
  45 /* === M A C R O S ========================================================= */
  46
  47 ACTION_INIT(Action::WaypointRemove);
  48 ACTION_SET_NAME(Action::WaypointRemove,"waypoint_remove");
  49 ACTION_SET_LOCAL_NAME(Action::WaypointRemove,N_("Remove Waypoint"));
  50 ACTION_SET_TASK(Action::WaypointRemove,"remove");
  51 ACTION_SET_CATEGORY(Action::WaypointRemove,Action::CATEGORY_WAYPOINT);
  52 ACTION_SET_PRIORITY(Action::WaypointRemove,0);
  53 ACTION_SET_VERSION(Action::WaypointRemove,"0.0");
  54 ACTION_SET_CVS_ID(Action::WaypointRemove,"$Id$");
  55
  56 /* === G L O B A L S ======================================================= */
  57
  58 /* === P R O C E D U R E S ================================================= */
  59
  60 /* === M E T H O D S ======================================================= */
  61
  62 Action::WaypointRemove::WaypointRemove()
  63 {
  64         waypoint.set_time(Time::begin()-1);
  65         set_dirty(true);
  66 }
  67
  68 Action::ParamVocab
  69 Action::WaypointRemove::get_param_vocab()
  70 {
  71         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  72
  73         ret.push_back(ParamDesc("value_node",Param::TYPE_VALUENODE)
  74                 .set_local_name(_("ValueNode (Animated)"))
  75         );
  76
  77         ret.push_back(ParamDesc("waypoint",Param::TYPE_WAYPOINT)
  78                 .set_local_name(_("Waypoint"))
  79                 .set_desc(_("Waypoint to be Removed"))
  80         );
  81
  82         return ret;
  83 }
  84
  85 bool
  86 Action::WaypointRemove::is_candidate(const ParamList &x)
  87 {
  88         return candidate_check(get_param_vocab(),x);
  89 }
  90
  91 bool
  92 Action::WaypointRemove::set_param(const synfig::String& name, const Action::Param &param)
  93 {
  94         if(name=="value_node" && param.get_type()==Param::TYPE_VALUENODE)
  95         {
  96                 value_node=ValueNode_Animated::Handle::cast_dynamic(param.get_value_node());
  97
  98                 return static_cast<bool>(value_node);
  99         }
 100         if(name=="waypoint" && param.get_type()==Param::TYPE_WAYPOINT)
 101         {
 102                 waypoint=param.get_waypoint();
 103
 104                 return true;
 105         }
 106
 107         return Action::CanvasSpecific::set_param(name,param);
 108 }
 109
 110 bool
 111 Action::WaypointRemove::is_ready()const
 112 {
 113         if(!value_node || waypoint.get_time()==(Time::begin()-1))
 114                 return false;
 115         return Action::CanvasSpecific::is_ready();
 116 }
 117
 118 void
 119 Action::WaypointRemove::perform()
 120 {
 121         WaypointList::iterator iter(value_node->find(waypoint));
 122
 123         if((UniqueID)*iter!=(UniqueID)waypoint)
 124                 throw Error(_("UniqueID mismatch, iter=%d, waypoint=%d"),iter->get_uid(),waypoint.get_uid());
 125
 126         if(iter->get_time()!=waypoint.get_time())
 127                 throw Error(_("Time mismatch iter=%s, waypoint=%s"),iter->get_time().get_string().c_str(),waypoint.get_time().get_string().c_str());
 128
 129         waypoint=*iter;
 130
 131         value_node->erase(waypoint);
 132
 133         // In this case, we need to convert this to a
 134         // constant value node
 135         if(value_node->waypoint_list().size()==0)
 136         {
 137                 if(!value_node_ref)
 138                 {
 139                         value_node_ref=waypoint.get_value_node();
 140                         if(!value_node_ref)
 141                                 throw Error(_("Unable to create ValueNode_Reference"));
 142                 }
 143
 144                 // fix 2256600 (and 2321845) : deleting the last waypoint of an exported valuenode unexported it
 145                 // if the waypoint's value isn't exported, set its id to be the id of the parent node
 146                 if (value_node_ref->get_id() == "" && value_node->get_id() != "")
 147                 {
 148                         const String id(value_node->get_id());
 149                         Canvas::LooseHandle canvas(value_node->get_parent_canvas());
 150                         canvas->remove_value_node(value_node);
 151                         canvas->add_value_node(value_node_ref, id);
 152                 }
 153
 154                 value_node->replace(value_node_ref);
 155                 value_node->waypoint_list().clear();
 156
 157                 if(get_canvas_interface())
 158                 {
 159                         get_canvas_interface()->signal_value_node_replaced()(value_node,value_node_ref);
 160                 }
 161         }
 162
 163         value_node->changed();
 164 }
 165
 166 void
 167 Action::WaypointRemove::undo()
 168 {
 169         if(value_node_ref)
 170         {
 171                 if(value_node->waypoint_list().size()!=0)
 172                         throw Error(_("This animated value node should be empty, but for some reason it isn't. This is a bug. (1)"));
 173
 174                 if (value_node->get_id() == "" && value_node_ref->get_id() != "")
 175                 {
 176                         const String id(value_node_ref->get_id());
 177                         Canvas::LooseHandle canvas(value_node_ref->get_parent_canvas());
 178                         canvas->remove_value_node(value_node_ref);
 179                         canvas->add_value_node(value_node, id);
 180                 }
 181
 182                 value_node_ref->replace(value_node);
 183
 184                 waypoint.set_value_node(value_node_ref);
 185
 186                 if(get_canvas_interface())
 187                         get_canvas_interface()->signal_value_node_replaced()(value_node_ref,value_node);
 188
 189                 if(value_node->waypoint_list().size()!=0)
 190                         throw Error(_("This animated value node should be empty, but for some reason it isn't. This is a bug. (2)"));
 191         }
 192
 193         if(value_node->waypoint_list().size()!=0)
 194         {
 195                 try { value_node->find(waypoint.get_time()); throw Error(_("A Waypoint already exists at this point in time"));}
 196                 catch(synfig::Exception::NotFound) { }
 197
 198                 try { if(value_node->find(waypoint)!=value_node->waypoint_list().end()) throw Error(_("This waypoint is already in the ValueNode"));}
 199                 catch(synfig::Exception::NotFound) { }
 200         }
 201
 202         value_node->add(waypoint);
 203
 204 /*_if(get_canvas_interface())
 205         {
 206                 get_canvas_interface()->signal_value_node_changed()(value_node);
 207         }
 208         else synfig::warning("CanvasInterface not set on action");*/
 209 }