synfig-studio/tags/stable/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 #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::LayerParamConnect);
  48 ACTION_SET_NAME(Action::LayerParamConnect,"layer_param_connect");
  49 ACTION_SET_LOCAL_NAME(Action::LayerParamConnect,N_("Connect Layer Parameter"));
  50 ACTION_SET_TASK(Action::LayerParamConnect,"connect");
  51 ACTION_SET_CATEGORY(Action::LayerParamConnect,Action::CATEGORY_LAYER|Action::CATEGORY_VALUENODE);
  52 ACTION_SET_PRIORITY(Action::LayerParamConnect,0);
  53 ACTION_SET_VERSION(Action::LayerParamConnect,"0.0");
  54 ACTION_SET_CVS_ID(Action::LayerParamConnect,"$Id$");
  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::LayerParamConnect::LayerParamConnect()
  63 {
  64 }
  65
  66 Action::ParamVocab
  67 Action::LayerParamConnect::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("value_node",Param::TYPE_VALUENODE)
  80                 .set_local_name(_("ValueNode"))
  81         );
  82
  83         return ret;
  84 }
  85
  86 bool
  87 Action::LayerParamConnect::is_candidate(const ParamList &x)
  88 {
  89         return candidate_check(get_param_vocab(),x);
  90 }
  91
  92 bool
  93 Action::LayerParamConnect::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=="value_node" && param.get_type()==Param::TYPE_VALUENODE)
 103         {
 104                 value_node=param.get_value_node();
 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::LayerParamConnect::is_ready()const
 121 {
 122         if(!layer)
 123                 synfig::warning("Action::LayerParamConnect: Missing \"layer\"");
 124         if(!value_node)
 125                 synfig::warning("Action::LayerParamConnect: Missing \"value_node\"");
 126         if(param_name.empty())
 127                 synfig::warning("Action::LayerParamConnect: Missing \"param\"");
 128
 129         if(!layer || !value_node || param_name.empty())
 130                 return false;
 131         return Action::CanvasSpecific::is_ready();
 132 }
 133
 134 void
 135 Action::LayerParamConnect::perform()
 136 {
 137         // See if the parameter is dynamic
 138         if(layer->dynamic_param_list().count(param_name))
 139                 old_value_node=layer->dynamic_param_list().find(param_name)->second;
 140         else
 141         {
 142                 old_value_node=0;
 143         }
 144
 145         old_value=layer->get_param(param_name);
 146         if(!old_value.is_valid())
 147                 throw Error(_("Layer did not recognize parameter name"));
 148
 149         if(!layer->set_param(param_name,(*value_node)(0)))
 150                 throw Error(_("Bad connection"));
 151
 152         layer->connect_dynamic_param(param_name,value_node);
 153
 154         layer->changed();
 155         value_node->changed();
 156 /*      if(get_canvas_interface())
 157         {
 158                 get_canvas_interface()->signal_layer_param_changed()(layer,param_name);
 159                 //get_canvas_interface()->signal_value_node_changed()(value_node);
 160         }
 161 */
 162 }
 163
 164 void
 165 Action::LayerParamConnect::undo()
 166 {
 167         if(old_value_node)
 168                 layer->connect_dynamic_param(param_name,old_value_node);
 169         else
 170         {
 171                 layer->disconnect_dynamic_param(param_name);
 172                 layer->set_param(param_name,old_value);
 173         }
 174
 175         layer->changed();
 176         if(old_value_node)
 177                 old_value_node->changed();
 178         /*
 179         if(layer->active())
 180                 set_dirty(true);
 181         else
 182                 set_dirty(false);
 183         */
 184
 185         if(get_canvas_interface())
 186         {
 187                 get_canvas_interface()->signal_layer_param_changed()(layer,param_name);
 188                 //if(old_value_node)get_canvas_interface()->signal_value_node_changed()(old_value_node);
 189         }
 190 }