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