synfig-studio/tags/0.61.09/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 **  Copyright (c) 2008 Chris Moore
  10 **
  11 **      This package is free software; you can redistribute it and/or
  12 **      modify it under the terms of the GNU General Public License as
  13 **      published by the Free Software Foundation; either version 2 of
  14 **      the License, or (at your option) any later version.
  15 **
  16 **      This package is distributed in the hope that it will be useful,
  17 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19 **      General Public License for more details.
  20 **      \endlegal
  21 */
  22 /* ========================================================================= */
  23
  24 /* === H E A D E R S ======================================================= */
  25
  26 #ifdef USING_PCH
  27 #       include "pch.h"
  28 #else
  29 #ifdef HAVE_CONFIG_H
  30 #       include <config.h>
  31 #endif
  32
  33 #include "activepointremove.h"
  34 #include <synfigapp/canvasinterface.h>
  35
  36 #include <synfigapp/general.h>
  37
  38 #endif
  39
  40 using namespace std;
  41 using namespace etl;
  42 using namespace synfig;
  43 using namespace synfigapp;
  44 using namespace Action;
  45
  46 /* === M A C R O S ========================================================= */
  47
  48 ACTION_INIT(Action::ActivepointRemove);
  49 ACTION_SET_NAME(Action::ActivepointRemove,"activepoint_remove");
  50 ACTION_SET_LOCAL_NAME(Action::ActivepointRemove,N_("Remove Activepoint"));
  51 ACTION_SET_TASK(Action::ActivepointRemove,"remove");
  52 ACTION_SET_CATEGORY(Action::ActivepointRemove,Action::CATEGORY_ACTIVEPOINT);
  53 ACTION_SET_PRIORITY(Action::ActivepointRemove,0);
  54 ACTION_SET_VERSION(Action::ActivepointRemove,"0.0");
  55 ACTION_SET_CVS_ID(Action::ActivepointRemove,"$Id$");
  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::ActivepointRemove::ActivepointRemove()
  64 {
  65         activepoint.set_time(Time::begin()-1);
  66         set_dirty(true);
  67 }
  68
  69 Action::ParamVocab
  70 Action::ActivepointRemove::get_param_vocab()
  71 {
  72         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  73
  74         ret.push_back(ParamDesc("value_desc",Param::TYPE_VALUEDESC)
  75                 .set_local_name(_("ValueDesc"))
  76         );
  77
  78         ret.push_back(ParamDesc("activepoint",Param::TYPE_ACTIVEPOINT)
  79                 .set_local_name(_("Activepoint"))
  80                 .set_desc(_("Activepoint to be changed"))
  81         );
  82
  83         return ret;
  84 }
  85
  86 bool
  87 Action::ActivepointRemove::is_candidate(const ParamList &x)
  88 {
  89         if (!candidate_check(get_param_vocab(),x))
  90                 return false;
  91
  92         ValueDesc value_desc(x.find("value_desc")->second.get_value_desc());
  93
  94         return (value_desc.parent_is_value_node() &&
  95                         // We need a dynamic list.
  96                         ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node()));
  97 }
  98
  99 bool
 100 Action::ActivepointRemove::set_param(const synfig::String& name, const Action::Param &param)
 101 {
 102         if(name=="value_desc" && param.get_type()==Param::TYPE_VALUEDESC)
 103         {
 104                 ValueDesc value_desc(param.get_value_desc());
 105
 106                 if(!value_desc.parent_is_value_node())
 107                         return false;
 108
 109                 value_node=ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node());
 110
 111                 if(!value_node)
 112                         return false;
 113
 114                 index=value_desc.get_index();
 115
 116                 return true;
 117         }
 118         if(name=="activepoint" && param.get_type()==Param::TYPE_ACTIVEPOINT)
 119         {
 120                 activepoint=param.get_activepoint();
 121
 122                 return true;
 123         }
 124
 125         return Action::CanvasSpecific::set_param(name,param);
 126 }
 127
 128 bool
 129 Action::ActivepointRemove::is_ready()const
 130 {
 131         if(!value_node || activepoint.get_time()==(Time::begin()-1))
 132                 return false;
 133         return Action::CanvasSpecific::is_ready();
 134 }
 135
 136 void
 137 Action::ActivepointRemove::perform()
 138 {
 139         ValueNode_DynamicList::ListEntry::ActivepointList::iterator iter;
 140
 141         try { iter=value_node->list[index].find(activepoint); }
 142         catch(synfig::Exception::NotFound)
 143         {
 144                 throw Error(_("Unable to find activepoint"));
 145         }
 146
 147         value_node->list[index].erase(activepoint);
 148         value_node->changed();
 149
 150         /*
 151         // Signal that a layer has been inserted
 152         if(get_canvas_interface())
 153         {
 154                 get_canvas_interface()->signal_value_node_changed()(value_node);
 155         }
 156         else synfig::warning("CanvasInterface not set on action");
 157         */
 158 }
 159
 160 void
 161 Action::ActivepointRemove::undo()
 162 {
 163         try { value_node->list[index].find(activepoint.get_time()); throw Error(_("A Activepoint already exists at this point in time"));}
 164         catch(synfig::Exception::NotFound) { }
 165
 166         try { if(value_node->list[index].find(activepoint)!=value_node->list[index].timing_info.end()) throw Error(_("This activepoint is already in the ValueNode"));}
 167         catch(synfig::Exception::NotFound) { }
 168
 169         value_node->list[index].add(activepoint);
 170         value_node->changed();
 171         /*
 172         // Signal that a layer has been inserted
 173         if(get_canvas_interface())
 174         {
 175                 get_canvas_interface()->signal_value_node_changed()(value_node);
 176         }
 177         else synfig::warning("CanvasInterface not set on action");
 178         */
 179 }