synfig-studio/src/gtkmm/state_normal.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file state_normal.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) 2007, 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_animated.h>
  38 #include <synfig/valuenode_blinecalcvertex.h>
  39 #include <synfig/valuenode_composite.h>
  40 #include <synfig/valuenode_const.h>
  41 #include <synfig/valuenode_dynamiclist.h>
  42 #include <synfigapp/action_system.h>
  43
  44 #include "state_normal.h"
  45 #include "canvasview.h"
  46 #include "workarea.h"
  47 #include "app.h"
  48
  49 #include <synfigapp/action.h>
  50 #include "event_mouse.h"
  51 #include "event_layerclick.h"
  52 #include "toolbox.h"
  53 #include "dialog_tooloptions.h"
  54 #include <gtkmm/optionmenu.h>
  55 #include "duck.h"
  56 #include <synfig/angle.h>
  57 #include <synfigapp/main.h>
  58
  59 #include "general.h"
  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 #ifndef EPSILON
  72 #define EPSILON 0.0000001
  73 #endif
  74
  75 /* === G L O B A L S ======================================================= */
  76
  77 StateNormal studio::state_normal;
  78
  79 /* === C L A S S E S & S T R U C T S ======================================= */
  80
  81 class DuckDrag_Combo : public DuckDrag_Base
  82 {
  83         synfig::Vector last_move;
  84         synfig::Vector drag_offset;
  85         synfig::Vector center;
  86         synfig::Vector snap;
  87
  88         synfig::Angle original_angle;
  89         synfig::Real original_mag;
  90
  91         std::vector<synfig::Vector> last_;
  92         std::vector<synfig::Vector> positions;
  93
  94
  95         bool bad_drag;
  96         bool move_only;
  97
  98 public:
  99         CanvasView* canvas_view_;
 100         bool scale;
 101         bool rotate;
 102         bool constrain;
 103         DuckDrag_Combo();
 104         void begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& begin);
 105         bool end_duck_drag(Duckmatic* duckmatic);
 106         void duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector);
 107
 108         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 109 };
 110
 111
 112 class studio::StateNormal_Context : public sigc::trackable
 113 {
 114         CanvasView* canvas_view_;
 115
 116         synfigapp::Settings& settings;
 117
 118         sigc::connection keypress_connect;
 119         sigc::connection keyrelease_connect;
 120
 121         etl::handle<DuckDrag_Combo> duck_dragger_;
 122
 123         Gtk::Table options_table;
 124
 125         Gtk::CheckButton checkbutton_rotate;
 126         Gtk::CheckButton checkbutton_scale;
 127         Gtk::CheckButton checkbutton_constrain;
 128
 129 public:
 130
 131         bool get_rotate_flag()const { return checkbutton_rotate.get_active(); }
 132         void set_rotate_flag(bool x) { checkbutton_rotate.set_active(x); refresh_rotate_flag(); }
 133         void refresh_rotate_flag() { if(duck_dragger_)duck_dragger_->rotate=get_rotate_flag(); }
 134
 135         bool get_scale_flag()const { return checkbutton_scale.get_active(); }
 136         void set_scale_flag(bool x) { checkbutton_scale.set_active(x); refresh_scale_flag(); }
 137         void refresh_scale_flag() { if(duck_dragger_)duck_dragger_->scale=get_scale_flag(); }
 138
 139         bool get_constrain_flag()const { return checkbutton_constrain.get_active(); }
 140         void set_constrain_flag(bool x) { checkbutton_constrain.set_active(x); refresh_constrain_flag(); }
 141         void refresh_constrain_flag() { if(duck_dragger_)duck_dragger_->constrain=get_constrain_flag(); }
 142         void refresh_cursor();
 143
 144         StateNormal_Context(CanvasView* canvas_view);
 145
 146         ~StateNormal_Context();
 147
 148         CanvasView* get_canvas_view()const{return canvas_view_;}
 149         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 150         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 151         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 152
 153         void load_settings();
 154         void save_settings();
 155
 156         bool key_pressed(GdkEventKey *event);
 157         bool key_released(GdkEventKey *event);
 158
 159         Smach::event_result event_stop_handler(const Smach::event& x);
 160         Smach::event_result event_refresh_handler(const Smach::event& x);
 161         Smach::event_result event_refresh_ducks_handler(const Smach::event& x);
 162         Smach::event_result event_undo_handler(const Smach::event& x);
 163         Smach::event_result event_redo_handler(const Smach::event& x);
 164         Smach::event_result event_mouse_button_down_handler(const Smach::event& x);
 165         Smach::event_result event_multiple_ducks_clicked_handler(const Smach::event& x);
 166         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 167         void refresh_tool_options();
 168         Smach::event_result event_layer_click(const Smach::event& x);
 169
 170
 171 };      // END of class StateNormal_Context
 172
 173 /* === M E T H O D S ======================================================= */
 174
 175 StateNormal::StateNormal():
 176         Smach::state<StateNormal_Context>("normal")
 177 {
 178         insert(event_def(EVENT_STOP,&StateNormal_Context::event_stop_handler));
 179         insert(event_def(EVENT_REFRESH,&StateNormal_Context::event_refresh_handler));
 180         insert(event_def(EVENT_REFRESH_DUCKS,&StateNormal_Context::event_refresh_ducks_handler));
 181         insert(event_def(EVENT_UNDO,&StateNormal_Context::event_undo_handler));
 182         insert(event_def(EVENT_REDO,&StateNormal_Context::event_redo_handler));
 183         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateNormal_Context::event_mouse_button_down_handler));
 184         insert(event_def(EVENT_WORKAREA_MULTIPLE_DUCKS_CLICKED,&StateNormal_Context::event_multiple_ducks_clicked_handler));
 185         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateNormal_Context::event_refresh_tool_options));
 186         insert(event_def(EVENT_WORKAREA_LAYER_CLICKED,&StateNormal_Context::event_layer_click));
 187
 188 }
 189
 190 StateNormal::~StateNormal()
 191 {
 192 }
 193
 194 void StateNormal_Context::refresh_cursor()
 195 {
 196         // Check the current state and return when applicable
 197         synfig::String sname;
 198         sname=get_canvas_view()->get_smach().get_state_name();
 199         if (sname=="smooth_move"||sname=="zoom"||sname=="width" ||
 200                 sname=="text"||sname=="stroke"||sname=="star"||sname=="sketch"||
 201                 sname=="scale"||sname=="zoom"||sname=="rotate"||sname=="rectangle"||
 202                 sname=="polygon"||sname=="gradient"||sname=="fill"||sname=="draw"||
 203                 sname=="circle")
 204                         return;
 205
 206         // Change the cursor based on key flags
 207         if(get_rotate_flag() && !get_scale_flag())
 208         {
 209                 get_work_area()->set_cursor(Gdk::EXCHANGE);
 210                 return;
 211         }
 212         if(!get_rotate_flag() && get_scale_flag())
 213         {
 214                 get_work_area()->set_cursor(Gdk::SIZING);
 215                 return;
 216         }
 217         if(get_rotate_flag() && get_scale_flag())
 218         {
 219                 get_work_area()->set_cursor(Gdk::CROSSHAIR);
 220                 return;
 221         }
 222         // If we are in BLine state and there is not key pressed return to
 223         // the bline cursor.
 224         if (sname=="bline")
 225         {
 226                 get_work_area()->set_cursor(Gdk::CROSSHAIR);
 227                 return;
 228         }
 229         // Default cursor for Transform tool
 230         get_work_area()->set_cursor(Gdk::ARROW);
 231
 232 }
 233
 234 void
 235 StateNormal_Context::load_settings()
 236 {
 237         String value;
 238
 239         if(settings.get_value("normal.rotate",value) && value=="1")
 240                 set_rotate_flag(true);
 241         else
 242                 set_rotate_flag(false);
 243
 244         if(settings.get_value("normal.scale",value) && value=="1")
 245                 set_scale_flag(true);
 246         else
 247                 set_scale_flag(false);
 248
 249         if(settings.get_value("normal.constrain",value) && value=="1")
 250                 set_constrain_flag(true);
 251         else
 252                 set_constrain_flag(false);
 253
 254 }
 255
 256 void
 257 StateNormal_Context::save_settings()
 258 {
 259         settings.set_value("normal.rotate",get_rotate_flag()?"1":"0");
 260         settings.set_value("normal.scale",get_scale_flag()?"1":"0");
 261         settings.set_value("normal.constrain",get_constrain_flag()?"1":"0");
 262 }
 263
 264 StateNormal_Context::StateNormal_Context(CanvasView* canvas_view):
 265         canvas_view_(canvas_view),
 266         settings(synfigapp::Main::get_selected_input_device()->settings()),
 267         duck_dragger_(new DuckDrag_Combo()),
 268         checkbutton_rotate(_("Rotate (Ctrl)")),
 269         checkbutton_scale(_("Scale (Alt)")),
 270         checkbutton_constrain(_("Constrain (Shift)"))
 271 {
 272         duck_dragger_->canvas_view_=get_canvas_view();
 273
 274         // Set up the tool options dialog
 275         options_table.attach(*manage(new Gtk::Label(_("Transform Tool"))),      0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 276         options_table.attach(checkbutton_rotate,                                                        0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 277         options_table.attach(checkbutton_scale,                                                 0, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 278         options_table.attach(checkbutton_constrain,                                                     0, 2, 3, 4, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 279
 280         checkbutton_rotate.signal_toggled().connect(sigc::mem_fun(*this,&StateNormal_Context::refresh_rotate_flag));
 281         checkbutton_scale.signal_toggled().connect(sigc::mem_fun(*this,&StateNormal_Context::refresh_scale_flag));
 282         checkbutton_constrain.signal_toggled().connect(sigc::mem_fun(*this,&StateNormal_Context::refresh_constrain_flag));
 283
 284
 285         options_table.show_all();
 286         refresh_tool_options();
 287         //App::dialog_tool_options->set_widget(options_table);
 288         //App::dialog_tool_options->present();
 289
 290         get_work_area()->set_allow_layer_clicks(true);
 291         get_work_area()->set_duck_dragger(duck_dragger_);
 292
 293         keypress_connect=get_work_area()->signal_key_press_event().connect(sigc::mem_fun(*this,&StateNormal_Context::key_pressed),false);
 294         keyrelease_connect=get_work_area()->signal_key_release_event().connect(sigc::mem_fun(*this,&StateNormal_Context::key_released),false);
 295
 296         //these will segfault
 297 //      get_work_area()->set_cursor(Gdk::CROSSHAIR);
 298 //      get_work_area()->reset_cursor();
 299
 300         App::toolbox->refresh();
 301
 302         load_settings();
 303         refresh_scale_flag();
 304 }
 305
 306 bool
 307 StateNormal_Context::key_pressed(GdkEventKey *event)
 308 {
 309         switch(event->keyval)
 310         {
 311                 case GDK_Control_L:
 312                 case GDK_Control_R:
 313                         set_rotate_flag(true);
 314                         break;
 315                 case GDK_Alt_L:
 316                 case GDK_Alt_R:
 317                         set_scale_flag(true);
 318                         break;
 319                 case GDK_Shift_L:
 320                 case GDK_Shift_R:
 321                         set_constrain_flag(true);
 322                         break;
 323                 default:
 324                         break;
 325         }
 326         refresh_cursor();
 327         return false; //Pass on the event to other handlers, just in case
 328 }
 329
 330 bool
 331 StateNormal_Context::key_released(GdkEventKey *event)
 332 {
 333         switch(event->keyval)
 334         {
 335                 case GDK_Control_L:
 336                 case GDK_Control_R:
 337                         set_rotate_flag(false);
 338                         break;
 339                 case GDK_Alt_L:
 340                 case GDK_Alt_R:
 341                         set_scale_flag(false);
 342                         break;
 343                 case GDK_Shift_L:
 344                 case GDK_Shift_R:
 345                         set_constrain_flag(false);
 346                         break;
 347                 default:
 348                         break;
 349         }
 350         refresh_cursor();
 351         return false; //Pass on the event to other handlers
 352 }
 353
 354 void
 355 StateNormal_Context::refresh_tool_options()
 356 {
 357         App::dialog_tool_options->clear();
 358         App::dialog_tool_options->set_widget(options_table);
 359         App::dialog_tool_options->set_local_name(_("Transform Tool"));
 360         App::dialog_tool_options->set_name("normal");
 361 }
 362
 363
 364
 365 StateNormal_Context::~StateNormal_Context()
 366 {
 367         save_settings();
 368
 369         get_work_area()->clear_duck_dragger();
 370         get_work_area()->reset_cursor();
 371
 372         keypress_connect.disconnect();
 373         keyrelease_connect.disconnect();
 374
 375         App::dialog_tool_options->clear();
 376
 377         App::toolbox->refresh();
 378 }
 379
 380 DuckDrag_Combo::DuckDrag_Combo():
 381         scale(false),
 382         rotate(false),
 383         constrain(false) // Lock aspect for scale; smooth move for translate
 384 {
 385 }
 386
 387 void
 388 DuckDrag_Combo::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& offset)
 389 {
 390         last_move=Vector(1,1);
 391
 392         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 393         DuckList::const_iterator iter;
 394
 395         bad_drag=false;
 396
 397                 drag_offset=duckmatic->find_duck(offset)->get_trans_point();
 398
 399                 //snap=drag_offset-duckmatic->snap_point_to_grid(drag_offset);
 400                 //snap=offset-drag_offset_;
 401                 snap=Vector(0,0);
 402
 403         // Calculate center
 404         Point vmin(100000000,100000000);
 405         Point vmax(-100000000,-100000000);
 406         //std::set<etl::handle<Duck> >::iterator iter;
 407         positions.clear();
 408         int i;
 409         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 410         {
 411                 Point p((*iter)->get_trans_point());
 412                 vmin[0]=min(vmin[0],p[0]);
 413                 vmin[1]=min(vmin[1],p[1]);
 414                 vmax[0]=max(vmax[0],p[0]);
 415                 vmax[1]=max(vmax[1],p[1]);
 416                 positions.push_back(p);
 417         }
 418         center=(vmin+vmax)*0.5;
 419         if((vmin-vmax).mag()<=EPSILON)
 420                 move_only=true;
 421         else
 422                 move_only=false;
 423
 424
 425         synfig::Vector vect(offset-center);
 426         original_angle=Angle::tan(vect[1],vect[0]);
 427         original_mag=vect.mag();
 428 }
 429
 430
 431 void
 432 DuckDrag_Combo::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
 433 {
 434         if (!duckmatic) return;
 435
 436         if(bad_drag)
 437                 return;
 438
 439         //Override axis lock set in workarea when holding down the shift key
 440         if (!move_only && (scale || rotate))
 441                 duckmatic->set_axis_lock(false);
 442
 443         synfig::Vector vect;
 444         if (move_only || (!scale && !rotate))
 445                 vect= duckmatic->snap_point_to_grid(vector)-drag_offset+snap;
 446         else
 447                 vect= duckmatic->snap_point_to_grid(vector)-center+snap;
 448
 449         last_move=vect;
 450
 451         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 452         DuckList::const_iterator iter;
 453
 454         Time time(duckmatic->get_time());
 455
 456         int i;
 457         if( move_only || (!scale && !rotate) )
 458         {
 459                 for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 460                 {
 461                         if((*iter)->get_type()==Duck::TYPE_VERTEX || (*iter)->get_type()==Duck::TYPE_POSITION)
 462                                 (*iter)->set_trans_point(positions[i]+vect, time);
 463                 }
 464                 for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 465                 {
 466                         if((*iter)->get_type()!=Duck::TYPE_VERTEX&&(*iter)->get_type()!=Duck::TYPE_POSITION)
 467                                 (*iter)->set_trans_point(positions[i]+vect, time);
 468                 }
 469         }
 470
 471         if (rotate)
 472         {
 473                 Angle::deg angle(Angle::tan(vect[1],vect[0]));
 474                 angle=original_angle-angle;
 475                 if (constrain)
 476                 {
 477                         float degrees = angle.get()/15;
 478                         angle= Angle::deg (degrees>0?std::floor(degrees)*15:std::ceil(degrees)*15);
 479                 }
 480                 Real mag(vect.mag()/original_mag);
 481                 Real sine(Angle::sin(angle).get());
 482                 Real cosine(Angle::cos(angle).get());
 483
 484                 for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 485                 {
 486                         if((*iter)->get_type()!=Duck::TYPE_VERTEX&&(*iter)->get_type()!=Duck::TYPE_POSITION)continue;
 487
 488                         Vector x(positions[i]-center),p;
 489
 490                         p[0]=cosine*x[0]+sine*x[1];
 491                         p[1]=-sine*x[0]+cosine*x[1];
 492                         if(scale)p*=mag;
 493                         p+=center;
 494                         (*iter)->set_trans_point(p, time);
 495                 }
 496                 for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 497                 {
 498                         if(!((*iter)->get_type()!=Duck::TYPE_VERTEX&&(*iter)->get_type()!=Duck::TYPE_POSITION))continue;
 499
 500                         Vector x(positions[i]-center),p;
 501
 502                         p[0]=cosine*x[0]+sine*x[1];
 503                         p[1]=-sine*x[0]+cosine*x[1];
 504                         if(scale)p*=mag;
 505                         p+=center;
 506                         (*iter)->set_trans_point(p, time);
 507                 }
 508         } else if (scale)
 509         {
 510                 if(!constrain)
 511                 {
 512                         if(abs(drag_offset[0]-center[0])>EPSILON)
 513                                 vect[0]/=drag_offset[0]-center[0];
 514                         else
 515                                 vect[0]=1;
 516                         if(abs(drag_offset[1]-center[1])>EPSILON)
 517                                 vect[1]/=drag_offset[1]-center[1];
 518                         else
 519                                 vect[1]=1;
 520                         }
 521                 else
 522                 {
 523                         //vect[0]=vect[1]=vect.mag()*0.707106781;
 524                         Real amount(vect.mag()/(drag_offset-center).mag());
 525                         vect[0]=vect[1]=amount;
 526                 }
 527
 528                 if(vect[0]<EPSILON && vect[0]>-EPSILON)
 529                         vect[0]=1;
 530                 if(vect[1]<EPSILON && vect[1]>-EPSILON)
 531                         vect[1]=1;
 532
 533                 for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 534                 {
 535                         if(((*iter)->get_type()!=Duck::TYPE_VERTEX&&(*iter)->get_type()!=Duck::TYPE_POSITION))continue;
 536
 537                         Vector p(positions[i]-center);
 538
 539                         p[0]*=vect[0];
 540                         p[1]*=vect[1];
 541                         p+=center;
 542                         (*iter)->set_trans_point(p, time);
 543                 }
 544                 for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 545                 {
 546                         if(!((*iter)->get_type()!=Duck::TYPE_VERTEX&&(*iter)->get_type()!=Duck::TYPE_POSITION))continue;
 547
 548                         Vector p(positions[i]-center);
 549
 550                         p[0]*=vect[0];
 551                         p[1]*=vect[1];
 552                         p+=center;
 553                         (*iter)->set_trans_point(p, time);
 554                 }
 555         }
 556
 557         // then patch up the tangents for the vertices we've moved
 558         duckmatic->update_ducks();
 559
 560         last_move=vect;
 561 }
 562
 563 bool
 564 DuckDrag_Combo::end_duck_drag(Duckmatic* duckmatic)
 565 {
 566         if(bad_drag)return false;
 567
 568         //synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("Rotate Ducks"));
 569
 570         if((last_move-Vector(1,1)).mag()>0.0001)
 571         {
 572                 duckmatic->signal_edited_selected_ducks();
 573                 return true;
 574         }
 575         else
 576         {
 577                 duckmatic->signal_user_click_selected_ducks(0);
 578                 return false;
 579         }
 580 }
 581
 582 Smach::event_result
 583 StateNormal_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 584 {
 585         refresh_tool_options();
 586         return Smach::RESULT_ACCEPT;
 587 }
 588
 589 Smach::event_result
 590 StateNormal_Context::event_stop_handler(const Smach::event& /*x*/)
 591 {
 592         // synfig::info("STATE NORMAL: Received Stop Event");
 593         canvas_view_->stop();
 594         return Smach::RESULT_ACCEPT;
 595 }
 596
 597 Smach::event_result
 598 StateNormal_Context::event_refresh_handler(const Smach::event& /*x*/)
 599 {
 600         // synfig::info("STATE NORMAL: Received Refresh Event");
 601         canvas_view_->rebuild_tables();
 602         canvas_view_->work_area->queue_render_preview();
 603         return Smach::RESULT_ACCEPT;
 604 }
 605
 606 Smach::event_result
 607 StateNormal_Context::event_refresh_ducks_handler(const Smach::event& /*x*/)
 608 {
 609         // synfig::info("STATE NORMAL: Received Refresh Ducks");
 610         canvas_view_->queue_rebuild_ducks();
 611         return Smach::RESULT_ACCEPT;
 612 }
 613
 614 Smach::event_result
 615 StateNormal_Context::event_undo_handler(const Smach::event& /*x*/)
 616 {
 617         // synfig::info("STATE NORMAL: Received Undo Event");
 618         canvas_view_->get_instance()->undo();
 619         return Smach::RESULT_ACCEPT;
 620 }
 621
 622 Smach::event_result
 623 StateNormal_Context::event_redo_handler(const Smach::event& /*x*/)
 624 {
 625         // synfig::info("STATE NORMAL: Received Redo Event");
 626         canvas_view_->get_instance()->redo();
 627         return Smach::RESULT_ACCEPT;
 628 }
 629
 630 Smach::event_result
 631 StateNormal_Context::event_mouse_button_down_handler(const Smach::event& x)
 632 {
 633         // synfig::info("STATE NORMAL: Received mouse button down Event");
 634
 635         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 636
 637         switch(event.button)
 638         {
 639         case BUTTON_RIGHT:
 640                 canvas_view_->popup_main_menu();
 641                 return Smach::RESULT_ACCEPT;
 642         default:
 643                 return Smach::RESULT_OK;
 644         }
 645 }
 646
 647 Smach::event_result
 648 StateNormal_Context::event_layer_click(const Smach::event& x)
 649 {
 650         const EventLayerClick& event(*reinterpret_cast<const EventLayerClick*>(&x));
 651
 652         if(event.layer)
 653         {
 654                 // synfig::info("STATE NORMAL: Received layer click Event, \"%s\"",event.layer->get_name().c_str());
 655         }
 656         else
 657         {
 658                 // synfig::info("STATE NORMAL: Received layer click Event with an empty layer.");
 659         }
 660
 661         switch(event.button)
 662         {
 663         case BUTTON_LEFT:
 664                 if(!(event.modifier&Gdk::CONTROL_MASK))
 665                         canvas_view_->get_selection_manager()->clear_selected_layers();
 666                 if(event.layer)
 667                 {
 668                         std::list<Layer::Handle> layer_list(canvas_view_->get_selection_manager()->get_selected_layers());
 669                         std::set<Layer::Handle> layers(layer_list.begin(),layer_list.end());
 670                         if(layers.count(event.layer))
 671                         {
 672                                 layers.erase(event.layer);
 673                                 layer_list=std::list<Layer::Handle>(layers.begin(),layers.end());
 674                                 canvas_view_->get_selection_manager()->clear_selected_layers();
 675                                 canvas_view_->get_selection_manager()->set_selected_layers(layer_list);
 676                         }
 677                         else
 678                         {
 679                                 canvas_view_->get_selection_manager()->set_selected_layer(event.layer);
 680                         }
 681                 }
 682                 return Smach::RESULT_ACCEPT;
 683         case BUTTON_RIGHT:
 684                 canvas_view_->popup_layer_menu(event.layer);
 685                 return Smach::RESULT_ACCEPT;
 686         default:
 687                 return Smach::RESULT_OK;
 688         }
 689 }
 690
 691 /*
 692 void
 693 StateNormal_Context::edit_several_waypoints(std::list<synfigapp::ValueDesc> value_desc_list)
 694 {
 695         Gtk::Dialog dialog(
 696                 "Edit Multiple Waypoints",              // Title
 697                 true,           // Modal
 698                 true            // use_separator
 699         );
 700
 701         Widget_WaypointModel widget_waypoint_model;
 702         widget_waypoint_model.show();
 703
 704         dialog.get_vbox()->pack_start(widget_waypoint_model);
 705
 706
 707         dialog.add_button(Gtk::StockID("gtk-apply"),1);
 708         dialog.add_button(Gtk::StockID("gtk-cancel"),0);
 709         dialog.show();
 710
 711         if(dialog.run()==0)
 712                 return;
 713         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("Set Waypoints"));
 714
 715         std::list<synfigapp::ValueDesc>::iterator iter;
 716         for(iter=value_desc_list.begin();iter!=value_desc_list.end();++iter)
 717         {
 718                 synfigapp::ValueDesc value_desc(*iter);
 719
 720                 if(!value_desc.is_valid())
 721                         continue;
 722
 723                 ValueNode_Animated::Handle value_node;
 724
 725                 // If this value isn't a ValueNode_Animated, but
 726                 // it is somewhat constant, then go ahead and convert
 727                 // it to a ValueNode_Animated.
 728                 if(!value_desc.is_value_node() || ValueNode_Const::Handle::cast_dynamic(value_desc.get_value_node()))
 729                 {
 730                         ValueBase value;
 731                         if(value_desc.is_value_node())
 732                                 value=ValueNode_Const::Handle::cast_dynamic(value_desc.get_value_node())->get_value();
 733                         else
 734                                 value=value_desc.get_value();
 735
 736                         value_node=ValueNode_Animated::create(value,get_canvas()->get_time());
 737
 738                         synfigapp::Action::Handle action;
 739
 740                         if(!value_desc.is_value_node())
 741                         {
 742                                 action=synfigapp::Action::create("ValueDescConnect");
 743                                 action->set_param("dest",value_desc);
 744                                 action->set_param("src",ValueNode::Handle(value_node));
 745                         }
 746                         else
 747                         {
 748                                 action=synfigapp::Action::create("ValueNodeReplace");
 749                                 action->set_param("dest",value_desc.get_value_node());
 750                                 action->set_param("src",ValueNode::Handle(value_node));
 751                         }
 752
 753                         action->set_param("canvas",get_canvas());
 754                         action->set_param("canvas_interface",get_canvas_interface());
 755
 756
 757                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 758                         {
 759                                 get_canvas_view()->get_ui_interface()->error(_("Unable to convert to animated waypoint"));
 760                                 group.cancel();
 761                                 return;
 762                         }
 763                 }
 764                 else
 765                 {
 766                         if(value_desc.is_value_node())
 767                                 value_node=ValueNode_Animated::Handle::cast_dynamic(value_desc.get_value_node());
 768                 }
 769
 770
 771                 if(value_node)
 772                 {
 773
 774                         synfigapp::Action::Handle action(synfigapp::Action::create("WaypointSetSmart"));
 775
 776                         if(!action)
 777                         {
 778                                 get_canvas_view()->get_ui_interface()->error(_("Unable to find WaypointSetSmart action"));
 779                                 group.cancel();
 780                                 return;
 781                         }
 782
 783
 784                         action->set_param("canvas",get_canvas());
 785                         action->set_param("canvas_interface",get_canvas_interface());
 786                         action->set_param("value_node",ValueNode::Handle(value_node));
 787                         action->set_param("time",get_canvas()->get_time());
 788                         action->set_param("model",widget_waypoint_model.get_waypoint_model());
 789
 790                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 791                         {
 792                                 get_canvas_view()->get_ui_interface()->error(_("Unable to set a specific waypoint"));
 793                                 group.cancel();
 794                                 return;
 795                         }
 796                 }
 797                 else
 798                 {
 799                         //get_canvas_view()->get_ui_interface()->error(_("Unable to animate a specific valuedesc"));
 800                         //group.cancel();
 801                         //return;
 802                 }
 803
 804         }
 805 }
 806 */
 807
 808 Smach::event_result
 809 StateNormal_Context::event_multiple_ducks_clicked_handler(const Smach::event& /*x*/)
 810 {
 811         // synfig::info("STATE NORMAL: Received multiple duck click event");
 812
 813         //const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 814
 815         std::list<synfigapp::ValueDesc> value_desc_list;
 816
 817         // Create a list of value_descs associated with selection
 818         const DuckList selected_ducks(get_work_area()->get_selected_ducks());
 819         DuckList::const_iterator iter;
 820         for(iter=selected_ducks.begin();iter!=selected_ducks.end();++iter)
 821         {
 822                 synfigapp::ValueDesc value_desc((*iter)->get_value_desc());
 823
 824                 if(!value_desc.is_valid())
 825                         continue;
 826
 827                 if(value_desc.get_value_type()==ValueBase::TYPE_BLINEPOINT && value_desc.is_value_node() && ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node()))
 828                 {
 829                         value_desc_list.push_back(
 830                                 synfigapp::ValueDesc(
 831                                         ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node())
 832                                         ,ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node())
 833                                                                ->get_link_index_from_name("point")
 834                                 )
 835                         );
 836                 }
 837                 else
 838                         value_desc_list.push_back(value_desc);
 839         }
 840
 841         Gtk::Menu *menu=manage(new Gtk::Menu());
 842         menu->signal_hide().connect(sigc::bind(sigc::ptr_fun(&delete_widget), menu));
 843
 844         canvas_view_->get_instance()->make_param_menu(menu,canvas_view_->get_canvas(),value_desc_list);
 845
 846         /*
 847         synfigapp::Action::ParamList param_list;
 848         param_list=get_canvas_interface()->generate_param_list(value_desc_list);
 849
 850         canvas_view_->add_actions_to_menu(menu, param_list,synfigapp::Action::CATEGORY_VALUEDESC|synfigapp::Action::CATEGORY_VALUENODE);
 851
 852         menu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Edit Waypoints"),
 853                 sigc::bind(
 854                         sigc::mem_fun(
 855                                 *this,
 856                                 &studio::StateNormal_Context::edit_several_waypoints
 857                         ),
 858                         value_desc_list
 859                 )
 860         ));
 861         */
 862         menu->popup(3,gtk_get_current_event_time());
 863
 864         return Smach::RESULT_ACCEPT;
 865 }
 866
 867