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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file layerparamset.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 "layerparamset.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::LayerParamSet);
  48 ACTION_SET_NAME(Action::LayerParamSet,"LayerParamSet");
  49 ACTION_SET_LOCAL_NAME(Action::LayerParamSet,N_("Set Layer Parameter"));
  50 ACTION_SET_TASK(Action::LayerParamSet,"set");
  51 ACTION_SET_CATEGORY(Action::LayerParamSet,Action::CATEGORY_LAYER);
  52 ACTION_SET_PRIORITY(Action::LayerParamSet,0);
  53 ACTION_SET_VERSION(Action::LayerParamSet,"0.0");
  54 ACTION_SET_CVS_ID(Action::LayerParamSet,"$Id$");
  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::LayerParamSet::LayerParamSet()
  63 {
  64 }
  65
  66 Action::ParamVocab
  67 Action::LayerParamSet::get_param_vocab()
  68 {
  69         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  70
  71         ret.push_back(ParamDesc("layer",Param::TYPE_LAYER)
  72                 .set_local_name(_("Layer"))
  73         );
  74
  75         ret.push_back(ParamDesc("param",Param::TYPE_STRING)
  76                 .set_local_name(_("Param"))
  77         );
  78
  79         ret.push_back(ParamDesc("new_value",Param::TYPE_VALUE)
  80                 .set_local_name(_("ValueBase"))
  81         );
  82
  83         return ret;
  84 }
  85
  86 bool
  87 Action::LayerParamSet::is_candidate(const ParamList &x)
  88 {
  89         return candidate_check(get_param_vocab(),x);
  90 }
  91
  92 bool
  93 Action::LayerParamSet::set_param(const synfig::String& name, const Action::Param &param)
  94 {
  95         if(name=="layer" && param.get_type()==Param::TYPE_LAYER)
  96         {
  97                 layer=param.get_layer();
  98
  99                 return true;
 100         }
 101
 102         if(name=="new_value" && param.get_type()==Param::TYPE_VALUE)
 103         {
 104                 new_value=param.get_value();
 105
 106                 return true;
 107         }
 108
 109         if(name=="param" && param.get_type()==Param::TYPE_STRING)
 110         {
 111                 param_name=param.get_string();
 112
 113                 return true;
 114         }
 115
 116         return Action::CanvasSpecific::set_param(name,param);
 117 }
 118
 119 bool
 120 Action::LayerParamSet::is_ready()const
 121 {
 122         if(!layer || !new_value.is_valid() || param_name.empty())
 123                 return false;
 124         return Action::CanvasSpecific::is_ready();
 125 }
 126
 127 void
 128 Action::LayerParamSet::perform()
 129 {
 130         // See if the parameter is dynamic
 131         if(layer->dynamic_param_list().count(param_name))
 132                 throw Error(_("ValueNode attached to Parameter."));
 133
 134         old_value=layer->get_param(param_name);
 135
 136         if(!layer->set_param(param_name,new_value))
 137                 throw Error(_("Layer did not accept parameter."));
 138
 139         /*if(layer->active())
 140                 set_dirty(true);
 141         else
 142                 set_dirty(false);
 143         */
 144         layer->changed();
 145
 146         // Signal that a layer has been inserted
 147         if(get_canvas_interface())
 148         {
 149                 get_canvas_interface()->signal_layer_param_changed()(layer,param_name);
 150         }
 151 }
 152
 153 void
 154 Action::LayerParamSet::undo()
 155 {
 156         if(!layer->set_param(param_name,old_value))
 157                 throw Error(_("Layer did not accept parameter."));
 158
 159         /*
 160         if(layer->active())
 161                 set_dirty(true);
 162         else
 163                 set_dirty(false);
 164         */
 165
 166         layer->changed();
 167
 168         // Signal that a layer has been inserted
 169         if(get_canvas_interface())
 170         {
 171                 get_canvas_interface()->signal_layer_param_changed()(layer,param_name);
 172         }
 173 }