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