synfig-studio/tags/synfigstudio_0_61_07/src/synfigapp/actions/activepointremove.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file activepointremove.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 "activepointremove.h"
  33 #include <synfigapp/canvasinterface.h>
  34
  35 #endif
  36
  37 using namespace std;
  38 using namespace etl;
  39 using namespace synfig;
  40 using namespace synfigapp;
  41 using namespace Action;
  42
  43 /* === M A C R O S ========================================================= */
  44
  45 ACTION_INIT(Action::ActivepointRemove);
  46 ACTION_SET_NAME(Action::ActivepointRemove,"activepoint_remove");
  47 ACTION_SET_LOCAL_NAME(Action::ActivepointRemove,"Remove Activepoint");
  48 ACTION_SET_TASK(Action::ActivepointRemove,"remove");
  49 ACTION_SET_CATEGORY(Action::ActivepointRemove,Action::CATEGORY_ACTIVEPOINT);
  50 ACTION_SET_PRIORITY(Action::ActivepointRemove,0);
  51 ACTION_SET_VERSION(Action::ActivepointRemove,"0.0");
  52 ACTION_SET_CVS_ID(Action::ActivepointRemove,"$Id$");
  53
  54 /* === G L O B A L S ======================================================= */
  55
  56 /* === P R O C E D U R E S ================================================= */
  57
  58 /* === M E T H O D S ======================================================= */
  59
  60 Action::ActivepointRemove::ActivepointRemove()
  61 {
  62         activepoint.set_time(Time::begin()-1);
  63         set_dirty(true);
  64 }
  65
  66 Action::ParamVocab
  67 Action::ActivepointRemove::get_param_vocab()
  68 {
  69         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  70
  71         ret.push_back(ParamDesc("value_desc",Param::TYPE_VALUEDESC)
  72                 .set_local_name(_("ValueDesc"))
  73         );
  74
  75         ret.push_back(ParamDesc("activepoint",Param::TYPE_ACTIVEPOINT)
  76                 .set_local_name(_("Activepoint"))
  77                 .set_desc(_("Activepoint to be changed"))
  78         );
  79
  80         return ret;
  81 }
  82
  83 bool
  84 Action::ActivepointRemove::is_candidate(const ParamList &x)
  85 {
  86         if(candidate_check(get_param_vocab(),x))
  87         {
  88                 ValueDesc value_desc(x.find("value_desc")->second.get_value_desc());
  89                 if(!value_desc.parent_is_value_node() || !ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node()))
  90                         return false;
  91
  92                 return true;
  93         }
  94         return false;
  95 }
  96
  97 bool
  98 Action::ActivepointRemove::set_param(const synfig::String& name, const Action::Param &param)
  99 {
 100         if(name=="value_desc" && param.get_type()==Param::TYPE_VALUEDESC)
 101         {
 102                 ValueDesc value_desc(param.get_value_desc());
 103
 104                 if(!value_desc.parent_is_value_node())
 105                         return false;
 106
 107                 value_node=ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node());
 108
 109                 if(!value_node)
 110                         return false;
 111
 112                 index=value_desc.get_index();
 113
 114                 return true;
 115         }
 116         if(name=="activepoint" && param.get_type()==Param::TYPE_ACTIVEPOINT)
 117         {
 118                 activepoint=param.get_activepoint();
 119
 120                 return true;
 121         }
 122
 123         return Action::CanvasSpecific::set_param(name,param);
 124 }
 125
 126 bool
 127 Action::ActivepointRemove::is_ready()const
 128 {
 129         if(!value_node || activepoint.get_time()==(Time::begin()-1))
 130                 return false;
 131         return Action::CanvasSpecific::is_ready();
 132 }
 133
 134 void
 135 Action::ActivepointRemove::perform()
 136 {
 137         ValueNode_DynamicList::ListEntry::ActivepointList::iterator iter;
 138
 139         try { iter=value_node->list[index].find(activepoint); }
 140         catch(synfig::Exception::NotFound)
 141         {
 142                 throw Error(_("Unable to find activepoint"));
 143         }
 144
 145         value_node->list[index].erase(activepoint);
 146         value_node->changed();
 147
 148         /*
 149         // Signal that a layer has been inserted
 150         if(get_canvas_interface())
 151         {
 152                 get_canvas_interface()->signal_value_node_changed()(value_node);
 153         }
 154         else synfig::warning("CanvasInterface not set on action");
 155         */
 156 }
 157
 158 void
 159 Action::ActivepointRemove::undo()
 160 {
 161         try { value_node->list[index].find(activepoint.get_time()); throw Error(_("A Activepoint already exists at this point in time"));}
 162         catch(synfig::Exception::NotFound) { }
 163
 164         try { if(value_node->list[index].find(activepoint)!=value_node->list[index].timing_info.end()) throw Error(_("This activepoint is already in the ValueNode"));}
 165         catch(synfig::Exception::NotFound) { }
 166
 167         value_node->list[index].add(activepoint);
 168         value_node->changed();
 169         /*
 170         // Signal that a layer has been inserted
 171         if(get_canvas_interface())
 172         {
 173                 get_canvas_interface()->signal_value_node_changed()(value_node);
 174         }
 175         else synfig::warning("CanvasInterface not set on action");
 176         */
 177 }