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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file valuedescblinelink.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) 2007, 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 "layerparamconnect.h"
  34 #include "valuenodelinkconnect.h"
  35 #include "valuenodereplace.h"
  36 #include "valuedescblinelink.h"
  37
  38 #include <synfigapp/canvasinterface.h>
  39 #include <synfig/valuenode_const.h>
  40 #include <synfig/valuenode_composite.h>
  41 #include <synfig/valuenode_blinecalctangent.h>
  42 #include <synfig/valuenode_blinecalcvertex.h>
  43 #include <synfig/valuenode_blinecalcwidth.h>
  44
  45 #include <synfigapp/general.h>
  46
  47 #endif
  48
  49 using namespace std;
  50 using namespace etl;
  51 using namespace synfig;
  52 using namespace synfigapp;
  53 using namespace Action;
  54
  55 /* === M A C R O S ========================================================= */
  56
  57 ACTION_INIT(Action::ValueDescBLineLink);
  58 ACTION_SET_NAME(Action::ValueDescBLineLink,"value_desc_bline_link");
  59 ACTION_SET_LOCAL_NAME(Action::ValueDescBLineLink,N_("Link to BLine"));
  60 ACTION_SET_TASK(Action::ValueDescBLineLink,"connect");
  61 ACTION_SET_CATEGORY(Action::ValueDescBLineLink,Action::CATEGORY_BEZIER);
  62 ACTION_SET_PRIORITY(Action::ValueDescBLineLink,0);
  63 ACTION_SET_VERSION(Action::ValueDescBLineLink,"0.0");
  64 ACTION_SET_CVS_ID(Action::ValueDescBLineLink,"$Id$");
  65
  66 /* === G L O B A L S ======================================================= */
  67
  68 /* === P R O C E D U R E S ================================================= */
  69
  70 /* === M E T H O D S ======================================================= */
  71
  72 Action::ValueDescBLineLink::ValueDescBLineLink()
  73 {
  74 }
  75
  76 Action::ParamVocab
  77 Action::ValueDescBLineLink::get_param_vocab()
  78 {
  79         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  80
  81         ret.push_back(ParamDesc("selected_value_desc",Param::TYPE_VALUEDESC)
  82                 .set_local_name(_("ValueDesc to link"))
  83                 .set_supports_multiple()
  84         );
  85         ret.push_back(ParamDesc("value_desc",Param::TYPE_VALUEDESC)
  86                 .set_local_name(_("ValueDesc on BLine to link to"))
  87         );
  88         ret.push_back(ParamDesc("time",Param::TYPE_TIME)
  89                 .set_local_name(_("Time"))
  90                 .set_optional()
  91         );
  92         ret.push_back(ParamDesc("origin",Param::TYPE_REAL)
  93                 .set_local_name(_("Origin"))
  94                 .set_optional()
  95         );
  96
  97         return ret;
  98 }
  99
 100 bool
 101 Action::ValueDescBLineLink::is_candidate(const ParamList &x)
 102 {
 103         ParamList::const_iterator i;
 104
 105         ValueDesc value_desc(x.find("value_desc")->second.get_value_desc());
 106
 107         if (!candidate_check(get_param_vocab(),x))
 108                 return false;
 109
 110         return (value_desc.parent_is_value_node() &&
 111                         // We need a dynamic list.
 112                         ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node()));
 113 }
 114
 115 bool
 116 Action::ValueDescBLineLink::set_param(const synfig::String& name, const Action::Param &param)
 117 {
 118         if (name == "time" && param.get_type() == Param::TYPE_TIME)
 119         {
 120                 time = param.get_time();
 121                 return true;
 122         }
 123
 124         if (name == "value_desc" && param.get_type() == Param::TYPE_VALUEDESC)
 125         {
 126                 value_desc = param.get_value_desc();
 127                 index = value_desc.get_index();
 128                 return true;
 129         }
 130
 131         if (name == "selected_value_desc" && param.get_type() == Param::TYPE_VALUEDESC)
 132         {
 133                 ValueDesc value_desc(param.get_value_desc());
 134                 value_desc_list.push_back(value_desc);
 135                 return true;
 136         }
 137
 138         if (name == "origin" && param.get_type() == Param::TYPE_REAL)
 139         {
 140                 origin = param.get_real();
 141                 return true;
 142         }
 143
 144         return Action::CanvasSpecific::set_param(name,param);
 145 }
 146
 147 bool
 148 Action::ValueDescBLineLink::is_ready()const
 149 {
 150         if (value_desc_list.size()<1)
 151                 return false;
 152         if (!value_desc)
 153                 return false;
 154         return Action::CanvasSpecific::is_ready();
 155 }
 156
 157 void
 158 Action::ValueDescBLineLink::prepare()
 159 {
 160         if (value_desc_list.empty())
 161                 throw Error(Error::TYPE_NOTREADY);
 162
 163         clear();
 164
 165         ValueNode_DynamicList::Handle bline_value_node(ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node()));
 166         bool loop(bline_value_node->get_loop());
 167         int loop_adjust(loop ? 0 : -1);
 168         const std::vector<ValueBase> bline((*bline_value_node)(time));
 169         int size = bline.size();
 170         Real amount = (index + origin + loop_adjust) / (size + loop_adjust);
 171         LinkableValueNode::Handle calculated_value_node;
 172         Action::Handle action;
 173
 174         ValueNode::Handle loop_value_node(ValueNode_Const::create(loop));
 175         ValueNode::Handle amount_value_node(ValueNode_Const::create(amount));
 176
 177         for (std::list<ValueDesc>::iterator iter = value_desc_list.begin(); iter != value_desc_list.end(); ++iter)
 178         {
 179                 ValueDesc& value_desc(*iter);
 180
 181                 // parent is BLINEPOINT ValueNode
 182                 if (value_desc.parent_is_linkable_value_node() &&
 183                         value_desc.get_parent_value_node()->get_type() == ValueBase::TYPE_BLINEPOINT &&
 184                         ValueNode_Composite::Handle::cast_dynamic(value_desc.get_parent_value_node()))
 185                 {
 186                         String link_name(synfig::LinkableValueNode::Handle::cast_reinterpret(value_desc.get_parent_value_node())->
 187                                                                 link_name(value_desc.get_index()));
 188                         if (link_name == "t1" || link_name == "t2")
 189                                 calculated_value_node = ValueNode_BLineCalcTangent::create(ValueBase::TYPE_VECTOR);
 190                         else if (link_name == "width")
 191                                 calculated_value_node = ValueNode_BLineCalcWidth::create(ValueBase::TYPE_REAL);
 192                         else
 193                         {
 194                                 synfig::warning("can't link '%s'", link_name.c_str());
 195                                 continue;
 196                         }
 197
 198                         action = ValueNodeLinkConnect::create();
 199                         action->set_param("parent_value_node", value_desc.get_parent_value_node());
 200                         action->set_param("index", value_desc.get_index());
 201                 }
 202                 // BLINEPOINT ValueNode - link its vertex
 203                 else if (value_desc.is_value_node() &&
 204                                  value_desc.get_value_type() == ValueBase::TYPE_BLINEPOINT &&
 205                                  ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node()))
 206                 {
 207                         calculated_value_node = ValueNode_BLineCalcVertex::create(ValueBase::TYPE_VECTOR);
 208                         action = ValueNodeLinkConnect::create();
 209                         action->set_param("parent_value_node", value_desc.get_value_node());
 210                         action->set_param("index", 0); // index for 'vertex' in 'composite'
 211                 }
 212                 // exported ValueNode
 213                 else if (value_desc.parent_is_canvas())
 214                 {
 215                         if (value_desc.get_value_type() == ValueBase::TYPE_VECTOR)
 216                                 calculated_value_node = ValueNode_BLineCalcVertex::create(ValueBase::TYPE_VECTOR);
 217                         else if (value_desc.get_value_type() == ValueBase::TYPE_REAL)
 218                                 calculated_value_node = ValueNode_BLineCalcWidth::create(ValueBase::TYPE_REAL);
 219                         else
 220                                 continue;
 221
 222                         calculated_value_node->set_link("bline",  bline_value_node);
 223                         calculated_value_node->set_link("loop",   ValueNode_Const::create(loop));
 224                         calculated_value_node->set_link("amount", ValueNode_Const::create(amount));
 225
 226                         action = ValueNodeReplace::create();
 227                         action->set_param("canvas", get_canvas());
 228                         action->set_param("canvas_interface", get_canvas_interface());
 229                         action->set_param("src", ValueNode::Handle(calculated_value_node));
 230                         action->set_param("dest", value_desc.get_value_node());
 231
 232                         assert(action->is_ready());
 233                         if (!action->is_ready()) throw Error(Error::TYPE_NOTREADY);
 234                         add_action_front(action);
 235
 236                         continue;
 237                 }
 238                 else if (value_desc.parent_is_layer_param())
 239                 {
 240                         // VECTOR layer parameter
 241                         if (value_desc.get_value_type() == ValueBase::TYPE_VECTOR)
 242                                 calculated_value_node = ValueNode_BLineCalcVertex::create(ValueBase::TYPE_VECTOR);
 243                         // REAL layer parameter
 244                         else if (value_desc.get_value_type() == ValueBase::TYPE_REAL)
 245                                 calculated_value_node = ValueNode_BLineCalcWidth::create(ValueBase::TYPE_REAL);
 246                         else
 247                                 continue;
 248
 249                         action = LayerParamConnect::create();
 250                         action->set_param("layer", value_desc.get_layer());
 251                         action->set_param("param", value_desc.get_param_name());
 252                 }
 253                 else
 254                         continue;
 255
 256                 calculated_value_node->set_link("bline",  bline_value_node );
 257                 calculated_value_node->set_link("loop",   loop_value_node  );
 258                 calculated_value_node->set_link("amount", amount_value_node);
 259
 260                 action->set_param("canvas", get_canvas());
 261                 action->set_param("canvas_interface", get_canvas_interface());
 262                 action->set_param("value_node", ValueNode::Handle(calculated_value_node));
 263
 264                 assert(action->is_ready());
 265                 if (!action->is_ready()) throw Error(Error::TYPE_NOTREADY);
 266                 add_action_front(action);
 267         }
 268 }