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_dynamiclist.h>
  38 #include <synfigapp/action_system.h>
  39
  40 #include "state_smoothmove.h"
  41 #include "canvasview.h"
  42 #include "workarea.h"
  43 #include "app.h"
  44
  45 #include <synfigapp/action.h>
  46 #include "event_mouse.h"
  47 #include "event_layerclick.h"
  48 #include "toolbox.h"
  49 #include "dialog_tooloptions.h"
  50 #include <gtkmm/optionmenu.h>
  51 #include "duck.h"
  52 #include "onemoment.h"
  53 #include <synfigapp/main.h>
  54
  55 #include "general.h"
  56
  57 #endif
  58
  59 /* === U S I N G =========================================================== */
  60
  61 using namespace std;
  62 using namespace etl;
  63 using namespace synfig;
  64 using namespace studio;
  65
  66 /* === M A C R O S ========================================================= */
  67
  68 /* === G L O B A L S ======================================================= */
  69
  70 StateSmoothMove studio::state_smooth_move;
  71
  72 /* === C L A S S E S & S T R U C T S ======================================= */
  73
  74 class DuckDrag_SmoothMove : public DuckDrag_Base
  75 {
  76         float radius;
  77
  78         synfig::Vector last_translate_;
  79         synfig::Vector drag_offset_;
  80         synfig::Vector snap;
  81
  82         std::vector<synfig::Vector> last_;
  83         std::vector<synfig::Vector> positions;
  84
  85 public:
  86         DuckDrag_SmoothMove();
  87         void begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& begin);
  88         bool end_duck_drag(Duckmatic* duckmatic);
  89         void duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector);
  90
  91         void set_radius(float x) { radius=x; }
  92         float get_radius()const { return radius; }
  93 };
  94
  95
  96 class studio::StateSmoothMove_Context : public sigc::trackable
  97 {
  98         etl::handle<CanvasView> canvas_view_;
  99
 100         //Duckmatic::Push duckmatic_push;
 101
 102         synfigapp::Settings& settings;
 103
 104         etl::handle<DuckDrag_SmoothMove> duck_dragger_;
 105
 106         Gtk::Table options_table;
 107
 108         Gtk::Adjustment  adj_radius;
 109         Gtk::SpinButton  spin_radius;
 110
 111         float pressure;
 112
 113 public:
 114         float get_radius()const { return adj_radius.get_value(); }
 115         void set_radius(float x) { return adj_radius.set_value(x); }
 116
 117         void refresh_radius() { duck_dragger_->set_radius(get_radius()*pressure); }
 118
 119         Smach::event_result event_stop_handler(const Smach::event& x);
 120
 121         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 122
 123         void refresh_tool_options();
 124
 125         StateSmoothMove_Context(CanvasView* canvas_view);
 126
 127         ~StateSmoothMove_Context();
 128
 129         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 130         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 131         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 132         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 133
 134         void load_settings();
 135         void save_settings();
 136 };      // END of class StateSmoothMove_Context
 137
 138 /* === M E T H O D S ======================================================= */
 139
 140 StateSmoothMove::StateSmoothMove():
 141         Smach::state<StateSmoothMove_Context>("smooth_move")
 142 {
 143         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateSmoothMove_Context::event_refresh_tool_options));
 144 }
 145
 146 StateSmoothMove::~StateSmoothMove()
 147 {
 148 }
 149
 150 void
 151 StateSmoothMove_Context::load_settings()
 152 {
 153         String value;
 154
 155         if(settings.get_value("smooth_move.radius",value))
 156                 set_radius(atof(value.c_str()));
 157         else
 158                 set_radius(1.0f);
 159 }
 160
 161 void
 162 StateSmoothMove_Context::save_settings()
 163 {
 164         settings.set_value("smooth_move.radius",strprintf("%f",get_radius()));
 165 }
 166
 167 StateSmoothMove_Context::StateSmoothMove_Context(CanvasView* canvas_view):
 168         canvas_view_(canvas_view),
 169 //      duckmatic_push(get_work_area()),
 170         settings(synfigapp::Main::get_selected_input_device()->settings()),
 171         duck_dragger_(new DuckDrag_SmoothMove()),
 172         adj_radius(1,0,100000,0.01,0.1),
 173         spin_radius(adj_radius,0.1,3)
 174 {
 175         pressure=1.0f;
 176
 177         // Set up the tool options dialog
 178         options_table.attach(*manage(new Gtk::Label(_("SmoothMove Tool"))),     0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 179         options_table.attach(*manage(new Gtk::Label(_("Radius"))),                      0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 180         options_table.attach(spin_radius,                                                                       0, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 181
 182         spin_radius.signal_value_changed().connect(sigc::mem_fun(*this,&StateSmoothMove_Context::refresh_radius));
 183
 184         options_table.show_all();
 185         refresh_tool_options();
 186         //App::dialog_tool_options->set_widget(options_table);
 187         App::dialog_tool_options->present();
 188
 189         get_work_area()->set_allow_layer_clicks(true);
 190         get_work_area()->set_duck_dragger(duck_dragger_);
 191
 192         App::toolbox->refresh();
 193
 194 //      get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 195         get_canvas_view()->work_area->reset_cursor();
 196
 197         load_settings();
 198 }
 199
 200 void
 201 StateSmoothMove_Context::refresh_tool_options()
 202 {
 203         App::dialog_tool_options->clear();
 204         App::dialog_tool_options->set_widget(options_table);
 205         App::dialog_tool_options->set_local_name(_("Smooth Move"));
 206         App::dialog_tool_options->set_name("smooth_move");
 207 }
 208
 209 Smach::event_result
 210 StateSmoothMove_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 211 {
 212         refresh_tool_options();
 213         return Smach::RESULT_ACCEPT;
 214 }
 215
 216 StateSmoothMove_Context::~StateSmoothMove_Context()
 217 {
 218         save_settings();
 219
 220         get_work_area()->clear_duck_dragger();
 221         get_canvas_view()->work_area->reset_cursor();
 222
 223         App::dialog_tool_options->clear();
 224
 225         App::toolbox->refresh();
 226 }
 227
 228
 229
 230
 231 DuckDrag_SmoothMove::DuckDrag_SmoothMove():radius(1.0f)
 232 {
 233 }
 234
 235 void
 236 DuckDrag_SmoothMove::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& offset)
 237 {
 238         last_translate_=Vector(0,0);
 239                 drag_offset_=duckmatic->find_duck(offset)->get_trans_point();
 240
 241                 //snap=drag_offset-duckmatic->snap_point_to_grid(drag_offset);
 242                 //snap=offset-drag_offset_;
 243                 snap=Vector(0,0);
 244
 245         last_.clear();
 246         positions.clear();
 247         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 248         DuckList::const_iterator iter;
 249         int i;
 250         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 251         {
 252                 last_.push_back(Vector(0,0));
 253                 positions.push_back((*iter)->get_trans_point());
 254         }
 255 }
 256
 257 void
 258 DuckDrag_SmoothMove::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
 259 {
 260         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 261         DuckList::const_iterator iter;
 262         synfig::Vector vect(duckmatic->snap_point_to_grid(vector)-drag_offset_+snap);
 263
 264         int i;
 265
 266         Time time(duckmatic->get_time());
 267
 268         // process vertex and position ducks first
 269         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 270         {
 271                 // skip this duck if it is NOT a vertex or a position
 272                 if (((*iter)->get_type() != Duck::TYPE_VERTEX &&
 273                          (*iter)->get_type() != Duck::TYPE_POSITION))
 274                         continue;
 275                 Point p(positions[i]);
 276
 277                 float dist(1.0f-(p-drag_offset_).mag()/get_radius());
 278                 if(dist<0)
 279                         dist=0;
 280
 281                 last_[i]=vect*dist;
 282                 (*iter)->set_trans_point(p+last_[i], time);
 283         }
 284
 285         // then process non vertex and non position ducks
 286         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 287         {
 288                 // skip this duck if it IS a vertex or a position
 289                 if (!((*iter)->get_type() != Duck::TYPE_VERTEX &&
 290                          (*iter)->get_type() != Duck::TYPE_POSITION))
 291                         continue;
 292                 Point p(positions[i]);
 293
 294                 float dist(1.0f-(p-drag_offset_).mag()/get_radius());
 295                 if(dist<0)
 296                         dist=0;
 297
 298                 last_[i]=vect*dist;
 299                 (*iter)->set_trans_point(p+last_[i], time);
 300         }
 301
 302         last_translate_=vect;
 303         //snap=Vector(0,0);
 304 }
 305
 306 bool
 307 DuckDrag_SmoothMove::end_duck_drag(Duckmatic* duckmatic)
 308 {
 309         //synfig::info("end_duck_drag(): Diff= %f",last_translate_.mag());
 310         if(last_translate_.mag()>0.0001)
 311         {
 312                 const DuckList selected_ducks(duckmatic->get_selected_ducks());
 313                 DuckList::const_iterator iter;
 314
 315                 int i;
 316
 317                 smart_ptr<OneMoment> wait;if(selected_ducks.size()>20)wait.spawn();
 318
 319                 for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 320                 {
 321                         if(last_[i].mag()>0.0001)
 322                                 if(!(*iter)->signal_edited()((*iter)->get_point()))
 323                                 {
 324                                         throw String("Bad Move");
 325                                 }
 326                 }
 327                 //duckmatic->get_selected_ducks()=new_set;
 328                 //duckmatic->refresh_selected_ducks();
 329                 return true;
 330         }
 331         else
 332         {
 333                 duckmatic->signal_user_click_selected_ducks(0);
 334                 return false;
 335         }
 336 }