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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file activepointsetsmart.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 "activepointsetsmart.h"
  33 #include "valuenodelinkconnect.h"
  34 #include "valuenodereplace.h"
  35
  36 #include "activepointset.h"
  37 #include "activepointadd.h"
  38
  39 #include "valuedescconnect.h"
  40 #include <synfigapp/canvasinterface.h>
  41
  42 #include <synfigapp/general.h>
  43
  44 #endif
  45
  46 using namespace std;
  47 using namespace etl;
  48 using namespace synfig;
  49 using namespace synfigapp;
  50 using namespace Action;
  51
  52 /* === M A C R O S ========================================================= */
  53
  54 ACTION_INIT(Action::ActivepointSetSmart);
  55 ACTION_SET_NAME(Action::ActivepointSetSmart,"activepoint_set_smart");
  56 ACTION_SET_LOCAL_NAME(Action::ActivepointSetSmart,N_("Set Activepoint (Smart)"));
  57 ACTION_SET_TASK(Action::ActivepointSetSmart,"set");
  58 ACTION_SET_CATEGORY(Action::ActivepointSetSmart,Action::CATEGORY_ACTIVEPOINT);
  59 ACTION_SET_PRIORITY(Action::ActivepointSetSmart,0);
  60 ACTION_SET_VERSION(Action::ActivepointSetSmart,"0.0");
  61 ACTION_SET_CVS_ID(Action::ActivepointSetSmart,"$Id$");
  62
  63 /* === G L O B A L S ======================================================= */
  64
  65 /* === P R O C E D U R E S ================================================= */
  66
  67 /* === M E T H O D S ======================================================= */
  68
  69 Action::ActivepointSetSmart::ActivepointSetSmart()
  70 {
  71         activepoint.set_time(Time::begin()-1);
  72         time_set=false;
  73         set_dirty(true);
  74 }
  75
  76 Action::ParamVocab
  77 Action::ActivepointSetSmart::get_param_vocab()
  78 {
  79         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  80
  81         ret.push_back(ParamDesc("value_desc",Param::TYPE_VALUEDESC)
  82                 .set_local_name(_("ValueDesc"))
  83         );
  84
  85         ret.push_back(ParamDesc("activepoint",Param::TYPE_ACTIVEPOINT)
  86                 .set_local_name(_("New Activepoint"))
  87                 .set_desc(_("Activepoint to be added"))
  88                 .set_optional()
  89         );
  90
  91         ret.push_back(ParamDesc("time",Param::TYPE_TIME)
  92                 .set_local_name(_("Time"))
  93                 .set_desc(_("Time where activepoint is to be added"))
  94                 .set_optional()
  95         );
  96
  97         return ret;
  98 }
  99
 100 bool
 101 Action::ActivepointSetSmart::is_candidate(const ParamList &x)
 102 {
 103         if(candidate_check(get_param_vocab(),x))
 104         {
 105                 ValueDesc value_desc(x.find("value_desc")->second.get_value_desc());
 106                 if(!value_desc.parent_is_value_node() || !ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node()))
 107                         return false;
 108
 109                 // We need either a activepoint or a time.
 110                 if(x.count("activepoint") || x.count("time"))
 111                         return true;
 112         }
 113         return false;
 114 }
 115
 116 bool
 117 Action::ActivepointSetSmart::set_param(const synfig::String& name, const Action::Param &param)
 118 {
 119         if(name=="value_desc" && param.get_type()==Param::TYPE_VALUEDESC)
 120         {
 121                 value_desc=param.get_value_desc();
 122
 123                 if(!value_desc.parent_is_value_node())
 124                         return false;
 125
 126                 value_node=ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node());
 127
 128                 if(!value_node)
 129                         return false;
 130
 131                 index=value_desc.get_index();
 132
 133                 if(time_set)
 134                         calc_activepoint();
 135
 136                 return true;
 137         }
 138         if(name=="activepoint" && param.get_type()==Param::TYPE_ACTIVEPOINT && !time_set)
 139         {
 140                 activepoint=param.get_activepoint();
 141
 142                 return true;
 143         }
 144         if(name=="time" && param.get_type()==Param::TYPE_TIME && activepoint.get_time()==Time::begin()-1)
 145         {
 146                 activepoint.set_time(param.get_time());
 147                 time_set=true;
 148
 149                 if(value_node)
 150                         calc_activepoint();
 151
 152                 return true;
 153         }
 154
 155         return Action::CanvasSpecific::set_param(name,param);
 156
 157         return Action::CanvasSpecific::set_param(name,param);
 158 }
 159
 160 bool
 161 Action::ActivepointSetSmart::is_ready()const
 162 {
 163         if(!value_node)
 164                 synfig::error("Missing value_node");
 165
 166         if(activepoint.get_time()==(Time::begin()-1))
 167                 synfig::error("Missing activepoint");
 168
 169         if(!value_node || activepoint.get_time()==(Time::begin()-1))
 170                 return false;
 171         return Action::CanvasSpecific::is_ready();
 172 }
 173
 174 // This function is called if a time is specified, but not
 175 // a activepoint. In this case, we need to calculate the value
 176 // of the activepoint
 177 void
 178 Action::ActivepointSetSmart::calc_activepoint()
 179 {
 180 /*
 181         const Time time(activepoint.get_time());
 182         activepoint.set_state(value_node->list[index].status_at_time(time));
 183         activepoint.set_priority(0);
 184 */
 185
 186         activepoint=value_node->list[index].new_activepoint_at_time(activepoint.get_time());
 187
 188         // In this case, nothing is really changing, so there will be
 189         // no need to redraw the window
 190         set_dirty(false);
 191 }
 192
 193 void
 194 Action::ActivepointSetSmart::enclose_activepoint(const synfig::Activepoint& activepoint)
 195 {
 196         times.insert(activepoint.get_time());
 197
 198         if(get_edit_mode()&MODE_ANIMATE_PAST) try
 199         {
 200                 // Try to find prev keyframe
 201                 Keyframe keyframe(*get_canvas()->keyframe_list().find_prev(activepoint.get_time()));
 202
 203                 if(times.count(keyframe.get_time()))
 204                         throw int();
 205                 else
 206                         times.insert(keyframe.get_time());
 207
 208                 try { value_node->list[index].find(keyframe.get_time()); }
 209                 catch(synfig::Exception::NotFound)
 210                 {
 211                         Action::Handle action(ActivepointAdd::create());
 212
 213                         action->set_param("canvas",get_canvas());
 214                         action->set_param("canvas_interface",get_canvas_interface());
 215                         action->set_param("value_desc",value_desc);
 216
 217                         if(!value_node->list[index].timing_info.empty())
 218                         {
 219                                 action->set_param("time",keyframe.get_time());
 220                         }
 221                         else
 222                         {
 223                                 synfig::Activepoint tmp;
 224
 225                                 tmp.set_state(true);
 226                                 tmp.set_time(keyframe.get_time());
 227                                 action->set_param("activepoint",tmp);
 228                         }
 229
 230                         assert(action->is_ready());
 231                         if(!action->is_ready())
 232                                 throw Error(Error::TYPE_NOTREADY);
 233
 234                         add_action_front(action);
 235                 }
 236         }
 237         catch(int) { }
 238         catch(synfig::Exception::NotFound) { }
 239
 240         if(get_edit_mode()&MODE_ANIMATE_FUTURE)try
 241         {
 242                 // Try to find next keyframe
 243                 Keyframe keyframe(*get_canvas()->keyframe_list().find_next(activepoint.get_time()));
 244
 245                 if(times.count(keyframe.get_time()))
 246                         throw int();
 247                 else
 248                         times.insert(keyframe.get_time());
 249
 250                 try { value_node->list[index].find(keyframe.get_time()); }
 251                 catch(synfig::Exception::NotFound)
 252                 {
 253                         Action::Handle action(ActivepointAdd::create());
 254
 255                         action->set_param("canvas",get_canvas());
 256                         action->set_param("canvas_interface",get_canvas_interface());
 257                         action->set_param("value_desc",value_desc);
 258
 259                         if(!value_node->list[index].timing_info.empty())
 260                         {
 261                                 action->set_param("time",keyframe.get_time());
 262                         }
 263                         else
 264                         {
 265                                 synfig::Activepoint tmp;
 266
 267                                 tmp.set_state(true);
 268                                 tmp.set_time(keyframe.get_time());
 269                                 action->set_param("activepoint",tmp);
 270                         }
 271
 272                         assert(action->is_ready());
 273                         if(!action->is_ready())
 274                                 throw Error(Error::TYPE_NOTREADY);
 275
 276                         add_action_front(action);
 277                 }
 278         }
 279         catch(int) { }
 280         catch(synfig::Exception::NotFound) { }
 281 }
 282
 283 void
 284 Action::ActivepointSetSmart::prepare()
 285 {
 286         clear();
 287         times.clear();
 288
 289         // First, we need to to add any activepoints necessary to
 290         // maintain the integrity of the keyframes.
 291         enclose_activepoint(activepoint);
 292
 293         try
 294         {
 295                 if(value_node->list[index].find(activepoint)==value_node->list[index].timing_info.end())
 296                         throw int();
 297
 298                 // Then, lets try to replace the old activepoint, if it exists
 299                 enclose_activepoint(*value_node->list[index].find(activepoint));
 300
 301                 Action::Handle action(ActivepointSet::create());
 302
 303                 action->set_param("canvas",get_canvas());
 304                 action->set_param("canvas_interface",get_canvas_interface());
 305                 action->set_param("value_desc",value_desc);
 306                 action->set_param("activepoint",activepoint);
 307
 308                 assert(action->is_ready());
 309                 if(!action->is_ready())
 310                         throw Error(Error::TYPE_NOTREADY);
 311
 312                 add_action_front(action);
 313
 314                 return;
 315         }
 316         catch(int){}
 317         catch(Exception::NotFound){}
 318
 319         try
 320         {
 321                 // Check to see if a activepoint exists at this point in time
 322                 activepoint.mimic(*value_node->list[index].find(activepoint.get_time()));
 323
 324                 enclose_activepoint(*value_node->list[index].find(activepoint.get_time()));
 325
 326                 Action::Handle action(ActivepointSet::create());
 327
 328                 action->set_param("canvas",get_canvas());
 329                 action->set_param("canvas_interface",get_canvas_interface());
 330                 action->set_param("value_desc",value_desc);
 331                 action->set_param("activepoint",activepoint);
 332
 333                 assert(action->is_ready());
 334                 if(!action->is_ready())
 335                         throw Error(Error::TYPE_NOTREADY);
 336
 337                 add_action_front(action);
 338
 339                 return;
 340         }
 341         catch(int){}
 342         catch(Exception::NotFound){}
 343
 344         try
 345         {
 346                 // At this point we know that the old activepoint doesn't exist,
 347                 // so we need to create it.
 348                 Action::Handle action(ActivepointAdd::create());
 349
 350                 action->set_param("canvas",get_canvas());
 351                 action->set_param("canvas_interface",get_canvas_interface());
 352                 action->set_param("value_desc",value_desc);
 353                 action->set_param("activepoint",activepoint);
 354
 355                 assert(action->is_ready());
 356                 if(!action->is_ready())
 357                         throw Error(Error::TYPE_NOTREADY);
 358
 359                 add_action_front(action);
 360
 361                 return;
 362         }
 363         catch(int){}
 364         catch(Exception::NotFound){}
 365
 366         throw Error(_("Unable to determine how to proceed. This is a bug."));
 367 }