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 "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 "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         String value;
 159
 160         if(settings.get_value("smooth_move.radius",value))
 161                 set_radius(atof(value.c_str()));
 162         else
 163                 set_radius(1.0f);
 164 }
 165
 166 void
 167 StateSmoothMove_Context::save_settings()
 168 {
 169         settings.set_value("smooth_move.radius",strprintf("%f",get_radius()));
 170 }
 171
 172 StateSmoothMove_Context::StateSmoothMove_Context(CanvasView* canvas_view):
 173         canvas_view_(canvas_view),
 174         is_working(*canvas_view),
 175 //      duckmatic_push(get_work_area()),
 176         settings(synfigapp::Main::get_selected_input_device()->settings()),
 177         duck_dragger_(new DuckDrag_SmoothMove()),
 178         adj_radius(1,0,100000,0.01,0.1),
 179         spin_radius(adj_radius,0.1,3)
 180 {
 181         pressure=1.0f;
 182
 183         // Set up the tool options dialog
 184         options_table.attach(*manage(new Gtk::Label(_("SmoothMove Tool"))),     0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 185         options_table.attach(*manage(new Gtk::Label(_("Radius"))),                      0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 186         options_table.attach(spin_radius,                                                                       0, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 187
 188         spin_radius.signal_value_changed().connect(sigc::mem_fun(*this,&StateSmoothMove_Context::refresh_radius));
 189
 190         options_table.show_all();
 191         refresh_tool_options();
 192         //App::dialog_tool_options->set_widget(options_table);
 193         App::dialog_tool_options->present();
 194
 195         get_work_area()->set_allow_layer_clicks(true);
 196         get_work_area()->set_duck_dragger(duck_dragger_);
 197
 198         App::toolbox->refresh();
 199
 200         get_work_area()->set_cursor(Gdk::FLEUR);
 201         //get_work_area()->reset_cursor();
 202
 203         load_settings();
 204 }
 205
 206 void
 207 StateSmoothMove_Context::refresh_tool_options()
 208 {
 209         App::dialog_tool_options->clear();
 210         App::dialog_tool_options->set_widget(options_table);
 211         App::dialog_tool_options->set_local_name(_("Smooth Move"));
 212         App::dialog_tool_options->set_name("smooth_move");
 213 }
 214
 215 Smach::event_result
 216 StateSmoothMove_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 217 {
 218         refresh_tool_options();
 219         return Smach::RESULT_ACCEPT;
 220 }
 221
 222 Smach::event_result
 223 StateSmoothMove_Context::event_stop_handler(const Smach::event& /*x*/)
 224 {
 225         throw &state_normal;
 226         return Smach::RESULT_OK;
 227 }
 228
 229 StateSmoothMove_Context::~StateSmoothMove_Context()
 230 {
 231         save_settings();
 232
 233         get_work_area()->clear_duck_dragger();
 234         get_work_area()->reset_cursor();
 235
 236         App::dialog_tool_options->clear();
 237
 238         App::toolbox->refresh();
 239 }
 240
 241
 242
 243
 244 DuckDrag_SmoothMove::DuckDrag_SmoothMove():radius(1.0f)
 245 {
 246 }
 247
 248 void
 249 DuckDrag_SmoothMove::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& offset)
 250 {
 251         last_translate_=Vector(0,0);
 252                 drag_offset_=duckmatic->find_duck(offset)->get_trans_point();
 253
 254                 //snap=drag_offset-duckmatic->snap_point_to_grid(drag_offset);
 255                 //snap=offset-drag_offset_;
 256                 snap=Vector(0,0);
 257
 258         last_.clear();
 259         positions.clear();
 260         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 261         DuckList::const_iterator iter;
 262         int i;
 263         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 264         {
 265                 last_.push_back(Vector(0,0));
 266                 positions.push_back((*iter)->get_trans_point());
 267         }
 268 }
 269
 270 void
 271 DuckDrag_SmoothMove::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
 272 {
 273         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 274         DuckList::const_iterator iter;
 275         synfig::Vector vect(duckmatic->snap_point_to_grid(vector)-drag_offset_+snap);
 276
 277         int i;
 278
 279         Time time(duckmatic->get_time());
 280
 281         // process vertex and position ducks first
 282         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 283         {
 284                 // skip this duck if it is NOT a vertex or a position
 285                 if (((*iter)->get_type() != Duck::TYPE_VERTEX &&
 286                          (*iter)->get_type() != Duck::TYPE_POSITION))
 287                         continue;
 288                 Point p(positions[i]);
 289
 290                 float dist(1.0f-(p-drag_offset_).mag()/get_radius());
 291                 if(dist<0)
 292                         dist=0;
 293
 294                 last_[i]=vect*dist;
 295                 (*iter)->set_trans_point(p+last_[i], time);
 296         }
 297
 298         // then process non vertex and non position ducks
 299         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 300         {
 301                 // skip this duck if it IS a vertex or a position
 302                 if (!((*iter)->get_type() != Duck::TYPE_VERTEX &&
 303                          (*iter)->get_type() != Duck::TYPE_POSITION))
 304                         continue;
 305                 Point p(positions[i]);
 306
 307                 float dist(1.0f-(p-drag_offset_).mag()/get_radius());
 308                 if(dist<0)
 309                         dist=0;
 310
 311                 last_[i]=vect*dist;
 312                 (*iter)->set_trans_point(p+last_[i], time);
 313         }
 314
 315         // then patch up the tangents for the vertices we've moved
 316         duckmatic->update_ducks();
 317
 318         last_translate_=vect;
 319         //snap=Vector(0,0);
 320 }
 321
 322 bool
 323 DuckDrag_SmoothMove::end_duck_drag(Duckmatic* duckmatic)
 324 {
 325         //synfig::info("end_duck_drag(): Diff= %f",last_translate_.mag());
 326         if(last_translate_.mag()>0.0001)
 327         {
 328                 const DuckList selected_ducks(duckmatic->get_selected_ducks());
 329                 DuckList::const_iterator iter;
 330
 331                 int i;
 332
 333                 smart_ptr<OneMoment> wait;if(selected_ducks.size()>20)wait.spawn();
 334
 335                 for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 336                 {
 337                         if(last_[i].mag()>0.0001)
 338                                 {
 339                                 if ((*iter)->get_type() == Duck::TYPE_ANGLE)
 340                                         {
 341                                                 if(!(*iter)->signal_edited_angle()((*iter)->get_rotations()))
 342                                                 {
 343                                                         throw String("Bad edit");
 344                                                 }
 345                                         }
 346                                         else if (App::restrict_radius_ducks &&
 347                                                          (*iter)->is_radius())
 348                                         {
 349                                                 Point point((*iter)->get_point());
 350                                                 bool changed = false;
 351
 352                                                 if (point[0] < 0)
 353                                                 {
 354                                                         point[0] = 0;
 355                                                         changed = true;
 356                                                 }
 357                                                 if (point[1] < 0)
 358                                                 {
 359                                                         point[1] = 0;
 360                                                         changed = true;
 361                                                 }
 362
 363                                                 if (changed) (*iter)->set_point(point);
 364
 365                                                 if(!(*iter)->signal_edited()(point))
 366                                                 {
 367                                                         throw String("Bad edit");
 368                                                 }
 369                                         }
 370                                         else
 371                                         {
 372                                                 if(!(*iter)->signal_edited()((*iter)->get_point()))
 373                                                 {
 374                                                         throw String("Bad edit");
 375                                                 }
 376                                         }
 377                                 }
 378                 }
 379                 //duckmatic->get_selected_ducks()=new_set;
 380                 //duckmatic->refresh_selected_ducks();
 381                 return true;
 382         }
 383         else
 384         {
 385                 duckmatic->signal_user_click_selected_ducks(0);
 386                 return false;
 387         }
 388 }