synfig-studio/tags/synfigstudio_0_61_07_rc3/src/synfigapp/actions/layerparamconnect.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file layerparamconnect.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 "layerparamconnect.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::LayerParamConnect);
  46 ACTION_SET_NAME(Action::LayerParamConnect,"layer_param_connect");
  47 ACTION_SET_LOCAL_NAME(Action::LayerParamConnect,_("Connect Layer Parameter"));
  48 ACTION_SET_TASK(Action::LayerParamConnect,"connect");
  49 ACTION_SET_CATEGORY(Action::LayerParamConnect,Action::CATEGORY_LAYER|Action::CATEGORY_VALUENODE);
  50 ACTION_SET_PRIORITY(Action::LayerParamConnect,0);
  51 ACTION_SET_VERSION(Action::LayerParamConnect,"0.0");
  52 ACTION_SET_CVS_ID(Action::LayerParamConnect,"$Id$");
  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::LayerParamConnect::LayerParamConnect()
  61 {
  62 }
  63
  64 Action::ParamVocab
  65 Action::LayerParamConnect::get_param_vocab()
  66 {
  67         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  68
  69         ret.push_back(ParamDesc("layer",Param::TYPE_LAYER)
  70                 .set_local_name(_("Layer"))
  71         );
  72
  73         ret.push_back(ParamDesc("param",Param::TYPE_STRING)
  74                 .set_local_name(_("Param"))
  75         );
  76
  77         ret.push_back(ParamDesc("value_node",Param::TYPE_VALUENODE)
  78                 .set_local_name(_("ValueNode"))
  79         );
  80
  81         return ret;
  82 }
  83
  84 bool
  85 Action::LayerParamConnect::is_candidate(const ParamList &x)
  86 {
  87         return candidate_check(get_param_vocab(),x);
  88 }
  89
  90 bool
  91 Action::LayerParamConnect::set_param(const synfig::String& name, const Action::Param &param)
  92 {
  93         if(name=="layer" && param.get_type()==Param::TYPE_LAYER)
  94         {
  95                 layer=param.get_layer();
  96
  97                 return true;
  98         }
  99
 100         if(name=="value_node" && param.get_type()==Param::TYPE_VALUENODE)
 101         {
 102                 value_node=param.get_value_node();
 103
 104                 return true;
 105         }
 106
 107         if(name=="param" && param.get_type()==Param::TYPE_STRING)
 108         {
 109                 param_name=param.get_string();
 110
 111                 return true;
 112         }
 113
 114         return Action::CanvasSpecific::set_param(name,param);
 115 }
 116
 117 bool
 118 Action::LayerParamConnect::is_ready()const
 119 {
 120         if(!layer)
 121                 synfig::warning("Action::LayerParamConnect: Missing \"layer\"");
 122         if(!value_node)
 123                 synfig::warning("Action::LayerParamConnect: Missing \"value_node\"");
 124         if(param_name.empty())
 125                 synfig::warning("Action::LayerParamConnect: Missing \"param\"");
 126
 127         if(!layer || !value_node || param_name.empty())
 128                 return false;
 129         return Action::CanvasSpecific::is_ready();
 130 }
 131
 132 void
 133 Action::LayerParamConnect::perform()
 134 {
 135         // See if the parameter is dynamic
 136         if(layer->dynamic_param_list().count(param_name))
 137                 old_value_node=layer->dynamic_param_list().find(param_name)->second;
 138         else
 139         {
 140                 old_value_node=0;
 141         }
 142
 143         old_value=layer->get_param(param_name);
 144         if(!old_value.is_valid())
 145                 throw Error(_("Layer did not recognise parameter name"));
 146
 147         if(!layer->set_param(param_name,(*value_node)(0)))
 148                 throw Error(_("Bad connection"));
 149
 150         layer->connect_dynamic_param(param_name,value_node);
 151
 152         layer->changed();
 153         value_node->changed();
 154 /*      if(get_canvas_interface())
 155         {
 156                 get_canvas_interface()->signal_layer_param_changed()(layer,param_name);
 157                 //get_canvas_interface()->signal_value_node_changed()(value_node);
 158         }
 159 */
 160 }
 161
 162 void
 163 Action::LayerParamConnect::undo()
 164 {
 165         if(old_value_node)
 166                 layer->connect_dynamic_param(param_name,old_value_node);
 167         else
 168         {
 169                 layer->disconnect_dynamic_param(param_name);
 170                 layer->set_param(param_name,old_value);
 171         }
 172
 173         layer->changed();
 174         if(old_value_node)
 175                 old_value_node->changed();
 176         /*
 177         if(layer->active())
 178                 set_dirty(true);
 179         else
 180                 set_dirty(false);
 181         */
 182
 183         if(get_canvas_interface())
 184         {
 185                 get_canvas_interface()->signal_layer_param_changed()(layer,param_name);
 186                 //if(old_value_node)get_canvas_interface()->signal_value_node_changed()(old_value_node);
 187         }
 188 }