synfig-studio/src/gui/states/state_smoothmove.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file state_smoothmove.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) 2008 Chris Moore
  10 **      Copyright (c) 2009 Nikita Kitaev
  11 **
  12 **      This package is free software; you can redistribute it and/or
  13 **      modify it under the terms of the GNU General Public License as
  14 **      published by the Free Software Foundation; either version 2 of
  15 **      the License, or (at your option) any later version.
  16 **
  17 **      This package is distributed in the hope that it will be useful,
  18 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  20 **      General Public License for more details.
  21 **      \endlegal
  22 */
  23 /* ========================================================================= */
  24
  25 /* === H E A D E R S ======================================================= */
  26
  27 #ifdef USING_PCH
  28 #       include "pch.h"
  29 #else
  30 #ifdef HAVE_CONFIG_H
  31 #       include <config.h>
  32 #endif
  33
  34 #include <gtkmm/dialog.h>
  35 #include <gtkmm/entry.h>
  36
  37 #include <synfig/valuenode_blinecalcvertex.h>
  38 #include <synfig/valuenode_composite.h>
  39 #include <synfig/valuenode_dynamiclist.h>
  40 #include <synfigapp/action_system.h>
  41
  42 #include "state_smoothmove.h"
  43 #include "state_normal.h"
  44 #include "canvasview.h"
  45 #include "workarea.h"
  46 #include "app.h"
  47
  48 #include <synfigapp/action.h>
  49 #include "event_mouse.h"
  50 #include "event_layerclick.h"
  51 #include "toolbox.h"
  52 #include "docks/dialog_tooloptions.h"
  53 #include <gtkmm/optionmenu.h>
  54 #include "duck.h"
  55 #include "onemoment.h"
  56 #include <synfigapp/main.h>
  57
  58 #include "general.h"
  59
  60 #endif
  61
  62 /* === U S I N G =========================================================== */
  63
  64 using namespace std;
  65 using namespace etl;
  66 using namespace synfig;
  67 using namespace studio;
  68
  69 /* === M A C R O S ========================================================= */
  70
  71 /* === G L O B A L S ======================================================= */
  72
  73 StateSmoothMove studio::state_smooth_move;
  74
  75 /* === C L A S S E S & S T R U C T S ======================================= */
  76
  77 class DuckDrag_SmoothMove : public DuckDrag_Base
  78 {
  79         float radius;
  80
  81         synfig::Vector last_translate_;
  82         synfig::Vector drag_offset_;
  83         synfig::Vector snap;
  84
  85         std::vector<synfig::Vector> last_;
  86         std::vector<synfig::Vector> positions;
  87
  88 public:
  89         DuckDrag_SmoothMove();
  90         void begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& begin);
  91         bool end_duck_drag(Duckmatic* duckmatic);
  92         void duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector);
  93
  94         void set_radius(float x) { radius=x; }
  95         float get_radius()const { return radius; }
  96 };
  97
  98
  99 class studio::StateSmoothMove_Context : public sigc::trackable
 100 {
 101         etl::handle<CanvasView> canvas_view_;
 102         CanvasView::IsWorking is_working;
 103
 104         //Duckmatic::Push duckmatic_push;
 105
 106         synfigapp::Settings& settings;
 107
 108         etl::handle<DuckDrag_SmoothMove> duck_dragger_;
 109
 110         Gtk::Table options_table;
 111
 112         Gtk::Adjustment  adj_radius;
 113         Gtk::SpinButton  spin_radius;
 114
 115         float pressure;
 116
 117 public:
 118         float get_radius()const { return adj_radius.get_value(); }
 119         void set_radius(float x) { return adj_radius.set_value(x); }
 120
 121         void refresh_radius() { duck_dragger_->set_radius(get_radius()*pressure); }
 122
 123         Smach::event_result event_stop_handler(const Smach::event& x);
 124
 125         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 126
 127         void refresh_tool_options();
 128
 129         StateSmoothMove_Context(CanvasView* canvas_view);
 130
 131         ~StateSmoothMove_Context();
 132
 133         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 134         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 135         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 136         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 137
 138         void load_settings();
 139         void save_settings();
 140 };      // END of class StateSmoothMove_Context
 141
 142 /* === M E T H O D S ======================================================= */
 143
 144 StateSmoothMove::StateSmoothMove():
 145         Smach::state<StateSmoothMove_Context>("smooth_move")
 146 {
 147         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateSmoothMove_Context::event_refresh_tool_options));
 148         insert(event_def(EVENT_STOP,&StateSmoothMove_Context::event_stop_handler));
 149 }
 150
 151 StateSmoothMove::~StateSmoothMove()
 152 {
 153 }
 154
 155 void
 156 StateSmoothMove_Context::load_settings()
 157 {
 158         try
 159         {
 160                 synfig::ChangeLocale change_locale(LC_NUMERIC, "C");
 161                 String value;
 162
 163                 if(settings.get_value("smooth_move.radius",value))
 164                         set_radius(atof(value.c_str()));
 165                 else
 166                         set_radius(1.0f);
 167         }
 168         catch(...)
 169         {
 170                 synfig::warning("State SmothMove: Caught exception when attempting to load settings.");
 171         }
 172 }
 173
 174 void
 175 StateSmoothMove_Context::save_settings()
 176 {
 177         try
 178         {
 179         synfig::ChangeLocale change_locale(LC_NUMERIC, "C");
 180                 settings.set_value("smooth_move.radius",strprintf("%f",get_radius()));
 181         }
 182         catch(...)
 183         {
 184                 synfig::warning("State SmoothMove: Caught exception when attempting to save settings.");
 185         }
 186 }
 187
 188 StateSmoothMove_Context::StateSmoothMove_Context(CanvasView* canvas_view):
 189         canvas_view_(canvas_view),
 190         is_working(*canvas_view),
 191 //      duckmatic_push(get_work_area()),
 192         settings(synfigapp::Main::get_selected_input_device()->settings()),
 193         duck_dragger_(new DuckDrag_SmoothMove()),
 194         adj_radius(1,0,100000,0.01,0.1),
 195         spin_radius(adj_radius,0.1,3)
 196 {
 197         pressure=1.0f;
 198
 199         // Set up the tool options dialog
 200         options_table.attach(*manage(new Gtk::Label(_("SmoothMove Tool"))),     0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 201         options_table.attach(*manage(new Gtk::Label(_("Radius"))),                      0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 202         options_table.attach(spin_radius,                                                                       0, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 203
 204         spin_radius.signal_value_changed().connect(sigc::mem_fun(*this,&StateSmoothMove_Context::refresh_radius));
 205
 206         options_table.show_all();
 207         refresh_tool_options();
 208         //App::dialog_tool_options->set_widget(options_table);
 209         App::dialog_tool_options->present();
 210
 211         get_work_area()->set_allow_layer_clicks(true);
 212         get_work_area()->set_duck_dragger(duck_dragger_);
 213
 214         App::toolbox->refresh();
 215
 216         get_work_area()->set_cursor(Gdk::FLEUR);
 217         //get_work_area()->reset_cursor();
 218
 219         load_settings();
 220 }
 221
 222 void
 223 StateSmoothMove_Context::refresh_tool_options()
 224 {
 225         App::dialog_tool_options->clear();
 226         App::dialog_tool_options->set_widget(options_table);
 227         App::dialog_tool_options->set_local_name(_("Smooth Move"));
 228         App::dialog_tool_options->set_name("smooth_move");
 229 }
 230
 231 Smach::event_result
 232 StateSmoothMove_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 233 {
 234         refresh_tool_options();
 235         return Smach::RESULT_ACCEPT;
 236 }
 237
 238 Smach::event_result
 239 StateSmoothMove_Context::event_stop_handler(const Smach::event& /*x*/)
 240 {
 241         throw &state_normal;
 242         return Smach::RESULT_OK;
 243 }
 244
 245 StateSmoothMove_Context::~StateSmoothMove_Context()
 246 {
 247         save_settings();
 248
 249         get_work_area()->clear_duck_dragger();
 250         get_work_area()->reset_cursor();
 251
 252         App::dialog_tool_options->clear();
 253
 254         App::toolbox->refresh();
 255 }
 256
 257
 258
 259
 260 DuckDrag_SmoothMove::DuckDrag_SmoothMove():radius(1.0f)
 261 {
 262 }
 263
 264 void
 265 DuckDrag_SmoothMove::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& offset)
 266 {
 267         last_translate_=Vector(0,0);
 268                 drag_offset_=duckmatic->find_duck(offset)->get_trans_point();
 269
 270                 //snap=drag_offset-duckmatic->snap_point_to_grid(drag_offset);
 271                 //snap=offset-drag_offset_;
 272                 snap=Vector(0,0);
 273
 274         last_.clear();
 275         positions.clear();
 276         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 277         DuckList::const_iterator iter;
 278         int i;
 279         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 280         {
 281                 last_.push_back(Vector(0,0));
 282                 positions.push_back((*iter)->get_trans_point());
 283         }
 284 }
 285
 286 void
 287 DuckDrag_SmoothMove::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
 288 {
 289         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 290         DuckList::const_iterator iter;
 291         synfig::Vector vect(duckmatic->snap_point_to_grid(vector)-drag_offset_+snap);
 292
 293         int i;
 294
 295         Time time(duckmatic->get_time());
 296
 297         // process vertex and position ducks first
 298         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 299         {
 300                 // skip this duck if it is NOT a vertex or a position
 301                 if (((*iter)->get_type() != Duck::TYPE_VERTEX &&
 302                          (*iter)->get_type() != Duck::TYPE_POSITION))
 303                         continue;
 304                 Point p(positions[i]);
 305
 306                 float dist(1.0f-(p-drag_offset_).mag()/get_radius());
 307                 if(dist<0)
 308                         dist=0;
 309
 310                 last_[i]=vect*dist;
 311                 (*iter)->set_trans_point(p+last_[i], time);
 312         }
 313
 314         // then process non vertex and non position ducks
 315         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 316         {
 317                 // skip this duck if it IS a vertex or a position
 318                 if (!((*iter)->get_type() != Duck::TYPE_VERTEX &&
 319                          (*iter)->get_type() != Duck::TYPE_POSITION))
 320                         continue;
 321                 Point p(positions[i]);
 322
 323                 float dist(1.0f-(p-drag_offset_).mag()/get_radius());
 324                 if(dist<0)
 325                         dist=0;
 326
 327                 last_[i]=vect*dist;
 328                 (*iter)->set_trans_point(p+last_[i], time);
 329         }
 330
 331         // then patch up the tangents for the vertices we've moved
 332         duckmatic->update_ducks();
 333
 334         last_translate_=vect;
 335         //snap=Vector(0,0);
 336 }
 337
 338 bool
 339 DuckDrag_SmoothMove::end_duck_drag(Duckmatic* duckmatic)
 340 {
 341         //synfig::info("end_duck_drag(): Diff= %f",last_translate_.mag());
 342         if(last_translate_.mag()>0.0001)
 343         {
 344                 const DuckList selected_ducks(duckmatic->get_selected_ducks());
 345                 DuckList::const_iterator iter;
 346
 347                 int i;
 348
 349                 smart_ptr<OneMoment> wait;if(selected_ducks.size()>20)wait.spawn();
 350
 351                 for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 352                 {
 353                         if(last_[i].mag()>0.0001)
 354                                 {
 355                                 if ((*iter)->get_type() == Duck::TYPE_ANGLE)
 356                                         {
 357                                                 if(!(*iter)->signal_edited_angle()((*iter)->get_rotations()))
 358                                                 {
 359                                                         throw String("Bad edit");
 360                                                 }
 361                                         }
 362                                         else if (App::restrict_radius_ducks &&
 363                                                          (*iter)->is_radius())
 364                                         {
 365                                                 Point point((*iter)->get_point());
 366                                                 bool changed = false;
 367
 368                                                 if (point[0] < 0)
 369                                                 {
 370                                                         point[0] = 0;
 371                                                         changed = true;
 372                                                 }
 373                                                 if (point[1] < 0)
 374                                                 {
 375                                                         point[1] = 0;
 376                                                         changed = true;
 377                                                 }
 378
 379                                                 if (changed) (*iter)->set_point(point);
 380
 381                                                 if(!(*iter)->signal_edited()(point))
 382                                                 {
 383                                                         throw String("Bad edit");
 384                                                 }
 385                                         }
 386                                         else
 387                                         {
 388                                                 if(!(*iter)->signal_edited()((*iter)->get_point()))
 389                                                 {
 390                                                         throw String("Bad edit");
 391                                                 }
 392                                         }
 393                                 }
 394                 }
 395                 //duckmatic->get_selected_ducks()=new_set;
 396                 //duckmatic->refresh_selected_ducks();
 397                 return true;
 398         }
 399         else
 400         {
 401                 duckmatic->signal_user_click_selected_ducks(0);
 402                 return false;
 403         }
 404 }