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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file valuedescexport.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 "valuenodeadd.h"
  33
  34 #include "canvasadd.h"
  35 #include "valuedescexport.h"
  36 #include "layerparamconnect.h"
  37
  38 #include <synfigapp/canvasinterface.h>
  39 #include <synfig/valuenode_const.h>
  40
  41 #include <synfigapp/general.h>
  42
  43 #endif
  44
  45 using namespace std;
  46 using namespace etl;
  47 using namespace synfig;
  48 using namespace synfigapp;
  49 using namespace Action;
  50
  51 /* === M A C R O S ========================================================= */
  52
  53 ACTION_INIT(Action::ValueDescExport);
  54 ACTION_SET_NAME(Action::ValueDescExport,"value_desc_export");
  55 ACTION_SET_LOCAL_NAME(Action::ValueDescExport,N_("Export"));
  56 ACTION_SET_TASK(Action::ValueDescExport,"export");
  57 ACTION_SET_CATEGORY(Action::ValueDescExport,Action::CATEGORY_VALUEDESC);
  58 ACTION_SET_PRIORITY(Action::ValueDescExport,0);
  59 ACTION_SET_VERSION(Action::ValueDescExport,"0.0");
  60 ACTION_SET_CVS_ID(Action::ValueDescExport,"$Id$");
  61
  62 /* === G L O B A L S ======================================================= */
  63
  64 /* === P R O C E D U R E S ================================================= */
  65
  66 /* === M E T H O D S ======================================================= */
  67
  68 Action::ValueDescExport::ValueDescExport()
  69 {
  70 }
  71
  72 Action::ParamVocab
  73 Action::ValueDescExport::get_param_vocab()
  74 {
  75         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  76
  77         ret.push_back(ParamDesc("value_desc",Param::TYPE_VALUEDESC)
  78                 .set_local_name(_("ValueDesc"))
  79         );
  80
  81         ret.push_back(ParamDesc("name",Param::TYPE_STRING)
  82                 .set_local_name(_("Name"))
  83                 .set_desc(_("The name that you want this value to be exported as"))
  84                 .set_user_supplied()
  85         );
  86
  87         return ret;
  88 }
  89
  90 bool
  91 Action::ValueDescExport::is_candidate(const ParamList &x)
  92 {
  93         if(candidate_check(get_param_vocab(),x))
  94         {
  95                 ValueDesc value_desc=x.find("value_desc")->second.get_value_desc();
  96                 if(!value_desc || value_desc.parent_is_canvas() || (value_desc.is_value_node() && value_desc.get_value_node()->is_exported()))
  97                         return false;
  98                 return true;
  99         }
 100         return false;
 101 }
 102
 103 bool
 104 Action::ValueDescExport::set_param(const synfig::String& param_name, const Action::Param &param)
 105 {
 106         if(param_name=="value_desc" && param.get_type()==Param::TYPE_VALUEDESC)
 107         {
 108                 value_desc=param.get_value_desc();
 109
 110                 return true;
 111         }
 112
 113         if(param_name=="name" && param.get_type()==Param::TYPE_STRING)
 114         {
 115                 name=param.get_string();
 116
 117                 return true;
 118         }
 119
 120         return Action::CanvasSpecific::set_param(param_name,param);
 121 }
 122
 123 bool
 124 Action::ValueDescExport::is_ready()const
 125 {
 126         if(!value_desc || name.empty())
 127                 return false;
 128         return Action::CanvasSpecific::is_ready();
 129 }
 130
 131 void
 132 Action::ValueDescExport::prepare()
 133 {
 134         clear();
 135
 136         ValueNode::Handle value_node;
 137
 138         if(value_desc.get_value_type()==ValueBase::TYPE_CANVAS)
 139         {
 140                 if(!value_desc.is_const())
 141                         throw Error(_("Can only export Canvas when used as constant parameter"));
 142                 Canvas::Handle canvas(value_desc.get_value().get(Canvas::Handle()));
 143
 144                 Action::Handle action(CanvasAdd::create());
 145
 146                 action->set_param("canvas",get_canvas());
 147                 action->set_param("canvas_interface",get_canvas_interface());
 148                 action->set_param("src",canvas);
 149                 action->set_param("id",name);
 150
 151                 assert(action->is_ready());
 152                 if(!action->is_ready())
 153                         throw Error(Error::TYPE_NOTREADY);
 154
 155                 add_action_front(action);
 156
 157                 return;
 158         }
 159
 160
 161         if(value_desc.is_value_node())
 162         {
 163                 if(value_desc.get_value_node()->is_exported())
 164                         throw Error(_("ValueBase is already exported"));
 165
 166                 value_node=value_desc.get_value_node();
 167         }
 168         else
 169         {
 170                 if(!value_desc.parent_is_layer_param())
 171                         throw Error(_("Unable to export parameter. (Bug?)"));
 172
 173                 value_node=ValueNode_Const::create(value_desc.get_value());
 174
 175                 Action::Handle action(LayerParamConnect::create());
 176
 177                 action->set_param("canvas",get_canvas());
 178                 action->set_param("canvas_interface",get_canvas_interface());
 179                 action->set_param("layer",value_desc.get_layer());
 180                 action->set_param("param",value_desc.get_param_name());
 181                 action->set_param("value_node",value_node);
 182
 183                 assert(action->is_ready());
 184                 if(!action->is_ready())
 185                         throw Error(Error::TYPE_NOTREADY);
 186
 187                 add_action_front(action);
 188         }
 189
 190         Action::Handle action(ValueNodeAdd::create());
 191
 192         action->set_param("canvas",get_canvas());
 193         action->set_param("canvas_interface",get_canvas_interface());
 194         action->set_param("new",value_node);
 195         action->set_param("name",name);
 196
 197         assert(action->is_ready());
 198         if(!action->is_ready())
 199                 throw Error(Error::TYPE_NOTREADY);
 200
 201         add_action_front(action);
 202 }