synfig-studio/trunk/src/gtkmm/state_bline.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file state_bline.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 **
  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
  38 #include "state_bline.h"
  39 #include "canvasview.h"
  40 #include "workarea.h"
  41 #include "app.h"
  42 #include <synfig/valuenode_bline.h>
  43 #include <ETL/hermite>
  44 #include <ETL/calculus>
  45 #include <utility>
  46 #include "event_mouse.h"
  47 #include "event_layerclick.h"
  48 #include "toolbox.h"
  49 #include "dialog_tooloptions.h"
  50 #include <gtkmm/spinbutton.h>
  51 #include <synfig/transform.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 // if defined, show the first duck as green while drawing
  68 #define DISTINGUISH_FIRST_DUCK
  69
  70 /* === G L O B A L S ======================================================= */
  71
  72 StateBLine studio::state_bline;
  73
  74 /* === C L A S S E S & S T R U C T S ======================================= */
  75
  76 class studio::StateBLine_Context : public sigc::trackable
  77 {
  78         etl::handle<CanvasView> canvas_view_;
  79         CanvasView::IsWorking is_working;
  80
  81         bool prev_table_status;
  82         bool loop_;
  83         bool prev_workarea_layer_status_;
  84
  85         int depth;
  86         Canvas::Handle canvas;
  87
  88         Gtk::Menu menu;
  89
  90         Duckmatic::Push duckmatic_push;
  91
  92         etl::handle<Duck> curr_duck;
  93
  94         etl::handle<Duck> next_duck;
  95
  96         std::list<synfig::ValueNode_Const::Handle> bline_point_list;
  97         synfigapp::Settings& settings;
  98
  99         bool on_vertex_change(const synfig::Point &point, synfig::ValueNode_Const::Handle value_node);
 100         bool on_tangent1_change(const synfig::Point &point, synfig::ValueNode_Const::Handle value_node);
 101         bool on_tangent2_change(const synfig::Point &point, synfig::ValueNode_Const::Handle value_node);
 102
 103
 104         void popup_handle_menu(synfig::ValueNode_Const::Handle value_node);
 105         void popup_vertex_menu(synfig::ValueNode_Const::Handle value_node);
 106         void popup_bezier_menu(float location, synfig::ValueNode_Const::Handle value_node);
 107
 108         void bline_detach_handle(synfig::ValueNode_Const::Handle value_node);
 109         void bline_attach_handle(synfig::ValueNode_Const::Handle value_node);
 110         void bline_delete_vertex(synfig::ValueNode_Const::Handle value_node);
 111         void bline_insert_vertex(synfig::ValueNode_Const::Handle value_node,float origin=0.5);
 112         void loop_bline();
 113         void unloop_bline();
 114
 115         void refresh_ducks(bool x=true);
 116
 117         Gtk::Table options_table;
 118         Gtk::Entry entry_id;
 119         Gtk::CheckButton checkbutton_layer_region;
 120         Gtk::CheckButton checkbutton_layer_outline;
 121         Gtk::CheckButton checkbutton_layer_curve_gradient;
 122         Gtk::CheckButton checkbutton_layer_plant;
 123         Gtk::CheckButton checkbutton_layer_link_offsets;
 124         Gtk::CheckButton checkbutton_auto_export;
 125         Gtk::Button button_make;
 126         Gtk::Button button_clear;
 127         Gtk::Adjustment  adj_feather;
 128         Gtk::SpinButton  spin_feather;
 129
 130
 131
 132 public:
 133
 134         int layers_to_create()const
 135         {
 136                 return
 137                         get_layer_region_flag() +
 138                         get_layer_outline_flag() +
 139                         get_layer_curve_gradient_flag() +
 140                         get_layer_plant_flag();
 141         }
 142
 143         void sanity_check()
 144         {
 145                 if(layers_to_create()==0)
 146                         set_layer_region_flag(true);
 147         }
 148
 149         bool get_auto_export_flag()const { return checkbutton_auto_export.get_active(); }
 150         void set_auto_export_flag(bool x) { return checkbutton_auto_export.set_active(x); }
 151
 152         bool get_layer_region_flag()const { return checkbutton_layer_region.get_active(); }
 153         void set_layer_region_flag(bool x) { return checkbutton_layer_region.set_active(x); }
 154
 155         bool get_layer_outline_flag()const { return checkbutton_layer_outline.get_active(); }
 156         void set_layer_outline_flag(bool x) { return checkbutton_layer_outline.set_active(x); }
 157
 158         bool get_layer_curve_gradient_flag()const { return checkbutton_layer_curve_gradient.get_active(); }
 159         void set_layer_curve_gradient_flag(bool x) { return checkbutton_layer_curve_gradient.set_active(x); }
 160
 161         bool get_layer_plant_flag()const { return checkbutton_layer_plant.get_active(); }
 162         void set_layer_plant_flag(bool x) { return checkbutton_layer_plant.set_active(x); }
 163
 164         bool get_layer_link_offsets_flag()const { return checkbutton_layer_link_offsets.get_active(); }
 165         void set_layer_link_offsets_flag(bool x) { return checkbutton_layer_link_offsets.set_active(x); }
 166
 167         Real get_feather() const { return adj_feather.get_value(); }
 168         void set_feather(Real x) { return adj_feather.set_value(x); }
 169         synfig::String get_id()const { return entry_id.get_text(); }
 170         void set_id(const synfig::String& x) { return entry_id.set_text(x); }
 171
 172         Smach::event_result event_stop_handler(const Smach::event& x);
 173
 174         Smach::event_result event_refresh_handler(const Smach::event& x);
 175
 176         Smach::event_result event_mouse_click_handler(const Smach::event& x);
 177         Smach::event_result event_mouse_release_handler(const Smach::event& x);
 178         Smach::event_result event_mouse_motion_handler(const Smach::event& x);
 179         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 180
 181         Smach::event_result event_hijack(const Smach::event& /*x*/) { return Smach::RESULT_ACCEPT; }
 182
 183         void refresh_tool_options();
 184
 185         StateBLine_Context(CanvasView* canvas_view);
 186
 187         ~StateBLine_Context();
 188
 189         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 190         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 191         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 192         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 193         const synfig::TransformStack& get_transform_stack()const { return canvas_view_->get_curr_transform_stack(); }
 194
 195         void load_settings();
 196         void save_settings();
 197         void reset();
 198         void increment_id();
 199         //void on_user_click(synfig::Point point);
 200
 201         bool run_();
 202         bool run();
 203
 204         bool egress_on_selection_change;
 205         Smach::event_result event_layer_selection_changed_handler(const Smach::event& /*x*/)
 206         {
 207                 if(egress_on_selection_change)
 208                         throw Smach::egress_exception();
 209                 return Smach::RESULT_OK;
 210         }
 211
 212 };      // END of class StateBLine_Context
 213
 214
 215 /* === M E T H O D S ======================================================= */
 216
 217 StateBLine::StateBLine():
 218         Smach::state<StateBLine_Context>("bline")
 219 {
 220         insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StateBLine_Context::event_layer_selection_changed_handler));
 221         insert(event_def(EVENT_STOP,&StateBLine_Context::event_stop_handler));
 222         insert(event_def(EVENT_REFRESH,&StateBLine_Context::event_refresh_handler));
 223         insert(event_def(EVENT_REFRESH_DUCKS,&StateBLine_Context::event_hijack));
 224         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateBLine_Context::event_mouse_click_handler));
 225         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_UP,&StateBLine_Context::event_mouse_release_handler));
 226         insert(event_def(EVENT_WORKAREA_MOUSE_MOTION,&StateBLine_Context::event_mouse_motion_handler));
 227         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DRAG,&StateBLine_Context::event_mouse_motion_handler));
 228         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateBLine_Context::event_refresh_tool_options));
 229 }
 230
 231 StateBLine::~StateBLine()
 232 {
 233 }
 234
 235 void
 236 StateBLine_Context::load_settings()
 237 {
 238         String value;
 239
 240         if(settings.get_value("bline.layer_region",value) && value=="0")
 241                 set_layer_region_flag(false);
 242         else
 243                 set_layer_region_flag(true);
 244
 245         if(settings.get_value("bline.layer_outline",value) && value=="0")
 246                 set_layer_outline_flag(false);
 247         else
 248                 set_layer_outline_flag(true);
 249
 250         if(settings.get_value("bline.layer_curve_gradient",value) && value=="1")
 251                 set_layer_curve_gradient_flag(true);
 252         else
 253                 set_layer_curve_gradient_flag(false);
 254
 255         if(settings.get_value("bline.layer_plant",value) && value=="1")
 256                 set_layer_plant_flag(true);
 257         else
 258                 set_layer_plant_flag(false);
 259
 260         if(settings.get_value("bline.layer_link_offsets",value) && value=="0")
 261                 set_layer_link_offsets_flag(false);
 262         else
 263                 set_layer_link_offsets_flag(true);
 264
 265         if(settings.get_value("bline.auto_export",value) && value=="1")
 266                 set_auto_export_flag(true);
 267         else
 268                 set_auto_export_flag(false);
 269
 270         if(settings.get_value("bline.id",value))
 271                 set_id(value);
 272         else
 273                 set_id("NewBLine");
 274
 275         if(settings.get_value("bline.feather",value))
 276         {
 277                 Real n = atof(value.c_str());
 278                 set_feather(n);
 279         }
 280
 281         sanity_check();
 282 }
 283
 284 void
 285 StateBLine_Context::save_settings()
 286 {
 287         sanity_check();
 288         settings.set_value("bline.layer_outline",get_layer_outline_flag()?"1":"0");
 289         settings.set_value("bline.layer_region",get_layer_region_flag()?"1":"0");
 290         settings.set_value("bline.layer_curve_gradient",get_layer_curve_gradient_flag()?"1":"0");
 291         settings.set_value("bline.layer_plant",get_layer_plant_flag()?"1":"0");
 292         settings.set_value("bline.layer_link_offsets",get_layer_link_offsets_flag()?"1":"0");
 293         settings.set_value("bline.auto_export",get_auto_export_flag()?"1":"0");
 294         settings.set_value("bline.id",get_id().c_str());
 295         settings.set_value("bline.feather",strprintf("%f",get_feather()));
 296 }
 297
 298 void
 299 StateBLine_Context::reset()
 300 {
 301         loop_=false;
 302         bline_point_list.clear();
 303         refresh_ducks();
 304 }
 305
 306 void
 307 StateBLine_Context::increment_id()
 308 {
 309         String id(get_id());
 310         int number=1;
 311         int digits=0;
 312
 313         if(id.empty())
 314                 id="NewBLine";
 315
 316         // If there is a number
 317         // already at the end of the
 318         // id, then remove it.
 319         if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
 320         {
 321                 // figure out how many digits it is
 322                 for (digits = 0;
 323                          (int)id.size()-1 >= digits && id[id.size()-1-digits] <= '9' && id[id.size()-1-digits] >= '0';
 324                          digits++)
 325                         ;
 326
 327                 String str_number;
 328                 str_number=String(id,id.size()-digits,id.size());
 329                 id=String(id,0,id.size()-digits);
 330                 // synfig::info("---------------- \"%s\"",str_number.c_str());
 331
 332                 number=atoi(str_number.c_str());
 333         }
 334         else
 335         {
 336                 number=1;
 337                 digits=3;
 338         }
 339
 340         number++;
 341
 342         // Add the number back onto the id
 343         {
 344                 const String format(strprintf("%%0%dd",digits));
 345                 id+=strprintf(format.c_str(),number);
 346         }
 347
 348         // Set the ID
 349         set_id(id);
 350 }
 351
 352
 353 StateBLine_Context::StateBLine_Context(CanvasView* canvas_view):
 354         canvas_view_(canvas_view),
 355         is_working(*canvas_view),
 356         loop_(false),
 357         prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
 358         duckmatic_push(get_work_area()),
 359         settings(synfigapp::Main::get_selected_input_device()->settings()),
 360         entry_id(),
 361         checkbutton_layer_region(_("Fill")),
 362         checkbutton_layer_outline(_("Outline")),
 363         checkbutton_layer_curve_gradient(_("Gradient")),
 364         checkbutton_layer_plant(_("Plant")),
 365         checkbutton_layer_link_offsets(_("Link Offsets")),
 366         checkbutton_auto_export(_("Auto Export")),
 367         button_make(_("Make")),
 368         button_clear(_("Clear")),
 369         adj_feather(0,0,10000,0.01,0.1),
 370         spin_feather(adj_feather,0.01,4)
 371 {
 372         depth=-1;
 373         egress_on_selection_change=true;
 374         load_settings();
 375
 376         // Set up the tool options dialog
 377         //options_table.attach(*manage(new Gtk::Label(_("BLine Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 378         options_table.attach(entry_id,                                                          0, 2,  1,  2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 379         options_table.attach(checkbutton_layer_outline,                         0, 2,  2,  3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 380         options_table.attach(checkbutton_layer_region,                          0, 2,  3,  4, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 381         options_table.attach(checkbutton_layer_plant,                           0, 2,  4,  5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 382         options_table.attach(checkbutton_layer_curve_gradient,          0, 2,  5,  6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 383         options_table.attach(checkbutton_layer_link_offsets,            0, 2,  6,  7, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 384         options_table.attach(checkbutton_auto_export,                           0, 2,  7,  8, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 385         options_table.attach(*manage(new Gtk::Label(_("Feather"))), 0, 1, 10, 11, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 386         options_table.attach(spin_feather,                                                      1, 2, 10, 11, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 387         //options_table.attach(button_make, 0, 2, 5, 6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 388         //button_make.signal_pressed().connect(sigc::mem_fun(*this,&StateBLine_Context::run));
 389         options_table.show_all();
 390         refresh_tool_options();
 391         App::dialog_tool_options->present();
 392
 393         // Turn off layer clicking
 394         get_work_area()->set_allow_layer_clicks(false);
 395
 396         // clear out the ducks
 397         get_work_area()->clear_ducks();
 398
 399         // Refresh the work area
 400         get_work_area()->queue_draw();
 401
 402         // Hide the tables if they are showing
 403         prev_table_status=get_canvas_view()->tables_are_visible();
 404         if(prev_table_status)get_canvas_view()->hide_tables();
 405
 406         // Disable the time bar
 407         get_canvas_view()->set_sensitive_timebar(false);
 408
 409         // Connect a signal
 410         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StateBLine_Context::on_user_click));
 411         get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 412
 413         App::toolbox->refresh();
 414 }
 415
 416 void
 417 StateBLine_Context::refresh_tool_options()
 418 {
 419         App::dialog_tool_options->clear();
 420         App::dialog_tool_options->set_widget(options_table);
 421         App::dialog_tool_options->set_local_name(_("BLine Tool"));
 422         App::dialog_tool_options->set_name("bline");
 423
 424         App::dialog_tool_options->add_button(
 425                 Gtk::StockID("gtk-execute"),
 426                 _("Make BLine and/or Region")
 427         )->signal_clicked().connect(
 428                 sigc::hide_return(sigc::mem_fun(
 429                         *this,
 430                         &StateBLine_Context::run
 431                 ))
 432         );
 433
 434         App::dialog_tool_options->add_button(
 435                 Gtk::StockID("gtk-clear"),
 436                 _("Clear current BLine")
 437         )->signal_clicked().connect(
 438                 sigc::mem_fun(
 439                         *this,
 440                         &StateBLine_Context::reset
 441                 )
 442         );
 443 }
 444
 445 Smach::event_result
 446 StateBLine_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 447 {
 448         refresh_tool_options();
 449         return Smach::RESULT_ACCEPT;
 450 }
 451
 452 StateBLine_Context::~StateBLine_Context()
 453 {
 454         run();
 455
 456         save_settings();
 457         App::dialog_tool_options->clear();
 458
 459         get_canvas_view()->work_area->reset_cursor();
 460
 461         // Restore layer clicking
 462         get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
 463
 464         // Enable the time bar
 465         get_canvas_view()->set_sensitive_timebar(true);
 466
 467         // Bring back the tables if they were out before
 468         if(prev_table_status)get_canvas_view()->show_tables();
 469
 470 //      get_canvas_view()->get_smach().process_event(EVENT_REFRESH_DUCKS);
 471
 472         // Refresh the work area
 473         get_work_area()->queue_draw();
 474
 475         App::toolbox->refresh();
 476 }
 477
 478 Smach::event_result
 479 StateBLine_Context::event_stop_handler(const Smach::event& /*x*/)
 480 {
 481 //      synfig::info("STATE RotoBLine: Received Stop Event");
 482 //      run();
 483         reset();
 484 //      throw Smach::egress_exception();
 485 //      get_canvas_view()->get_smach().pop_state();
 486         return Smach::RESULT_ACCEPT;
 487 }
 488
 489 Smach::event_result
 490 StateBLine_Context::event_refresh_handler(const Smach::event& /*x*/)
 491 {
 492 //      synfig::info("STATE RotoBLine: Received Refresh Event");
 493         refresh_ducks();
 494         return Smach::RESULT_ACCEPT;
 495 }
 496
 497 bool
 498 StateBLine_Context::run()
 499 {
 500         sanity_check();
 501
 502         String err;
 503         bool success(false);
 504         for(int i=5;i>0 && !success;i--)try
 505         {
 506                 success=run_();
 507         }
 508         catch(String s)
 509         {
 510                 err=s;
 511         }
 512         if(!success && !err.empty())
 513         {
 514                 get_canvas_view()->get_ui_interface()->error(err);
 515         }
 516         return success;
 517 }
 518
 519 bool
 520 StateBLine_Context::run_()
 521 {
 522         curr_duck=0;
 523         next_duck=0;
 524
 525         // Now we need to generate it
 526
 527         if(bline_point_list.empty())
 528         {
 529                 return false;
 530         }
 531         if(bline_point_list.size()<2)
 532         {
 533                 //get_canvas_view()->get_ui_interface()->error(_("You need at least two (2) points to create a BLine"));
 534                 return false;
 535         }
 536
 537         do
 538         {
 539
 540                 // Create the action group
 541                 synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New BLine"));
 542
 543                 std::vector<BLinePoint> new_list;
 544                 std::list<synfig::ValueNode_Const::Handle>::iterator iter;
 545                 const synfig::TransformStack& transform(get_transform_stack());
 546
 547                 for(iter=bline_point_list.begin();iter!=bline_point_list.end();++iter)
 548                 {
 549                         BLinePoint bline_point((*iter)->get_value().get(BLinePoint()));
 550                         Point new_vertex(transform.unperform(bline_point.get_vertex()));
 551
 552                         bline_point.set_tangent1(
 553                                 transform.unperform(
 554                                         bline_point.get_tangent1()+bline_point.get_vertex()
 555                                 ) -new_vertex
 556                         );
 557
 558                         bline_point.set_tangent2(
 559                                 transform.unperform(
 560                                         bline_point.get_tangent2()+bline_point.get_vertex()
 561                                 ) -new_vertex
 562                         );
 563
 564                         bline_point.set_vertex(new_vertex);
 565
 566                         new_list.push_back(bline_point);
 567                 }
 568
 569                 ValueNode_BLine::Handle value_node_bline(ValueNode_BLine::create(new_list));
 570                 assert(value_node_bline);
 571
 572                 ValueNode_Const::Handle value_node_offset(ValueNode_Const::create(Vector()));
 573                 assert(value_node_offset);
 574
 575                 // Set the looping flag
 576                 value_node_bline->set_loop(loop_);
 577
 578                 // Add the BLine to the canvas
 579                 if(get_auto_export_flag() && !get_canvas_interface()->add_value_node(value_node_bline,get_id()))
 580                 {
 581                         //get_canvas_view()->get_ui_interface()->error(_("Unable to add value node"));
 582                         group.cancel();
 583                         increment_id();
 584                         throw String(_("Unable to add value node"));
 585                         return false;
 586                 }
 587
 588                 Layer::Handle layer;
 589
 590                 // we are temporarily using the layer to hold something
 591                 layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
 592
 593                 if(layer)
 594                 {
 595                         if(depth<0)
 596                                 depth=layer->get_depth();
 597                         if(!canvas)
 598                                 canvas=layer->get_canvas();
 599                 }
 600                 else
 601                         depth=0;
 602
 603                 if(!canvas)
 604                         canvas=get_canvas_view()->get_canvas();
 605
 606                 value_node_bline->set_member_canvas(canvas);
 607
 608                 synfigapp::SelectionManager::LayerList layer_selection;
 609
 610                 ///////////////////////////////////////////////////////////////////////////
 611                 //   C U R V E   G R A D I E N T
 612                 ///////////////////////////////////////////////////////////////////////////
 613
 614                 if(get_layer_curve_gradient_flag())
 615                 {
 616                         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 617
 618                         Layer::Handle layer(get_canvas_interface()->add_layer_to("curve_gradient",canvas,depth));
 619                         assert(layer);
 620                         layer_selection.push_back(layer);
 621                         layer->set_description(get_id()+_(" Gradient"));
 622                         get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 623
 624                         {
 625                                 synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 626                                 assert(action);
 627
 628                                 action->set_param("canvas",get_canvas());
 629                                 action->set_param("canvas_interface",get_canvas_interface());
 630                                 action->set_param("layer",layer);
 631                                 if(!action->set_param("param",String("bline")))
 632                                         synfig::error("LayerParamConnect didn't like \"param\"");
 633                                 if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 634                                         synfig::error("LayerParamConnect didn't like \"value_node\"");
 635
 636                                 if(!get_canvas_interface()->get_instance()->perform_action(action))
 637                                 {
 638                                         //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 639                                         group.cancel();
 640                                         throw String(_("Unable to create Gradient layer"));
 641                                         return false;
 642                                 }
 643                         }
 644
 645                         if (get_layer_link_offsets_flag())
 646                         {
 647                                 synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 648                                 assert(action);
 649
 650                                 action->set_param("canvas",get_canvas());
 651                                 action->set_param("canvas_interface",get_canvas_interface());
 652                                 action->set_param("layer",layer);
 653                                 if(!action->set_param("param",String("offset")))
 654                                         synfig::error("LayerParamConnect didn't like \"param\"");
 655                                 if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
 656                                         synfig::error("LayerParamConnect didn't like \"value_node\"");
 657
 658                                 if(!get_canvas_interface()->get_instance()->perform_action(action))
 659                                 {
 660                                         //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 661                                         group.cancel();
 662                                         throw String(_("Unable to create Gradient layer"));
 663                                         return false;
 664                                 }
 665                         }
 666                 }
 667
 668                 ///////////////////////////////////////////////////////////////////////////
 669                 //   P L A N T
 670                 ///////////////////////////////////////////////////////////////////////////
 671
 672                 if(get_layer_plant_flag())
 673                 {
 674                         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 675
 676                         Layer::Handle layer(get_canvas_interface()->add_layer_to("plant",canvas,depth));
 677                         assert(layer);
 678                         layer_selection.push_back(layer);
 679                         layer->set_description(get_id()+_(" Plant"));
 680                         get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 681
 682                         {
 683                                 synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 684                                 assert(action);
 685
 686                                 action->set_param("canvas",get_canvas());
 687                                 action->set_param("canvas_interface",get_canvas_interface());
 688                                 action->set_param("layer",layer);
 689                                 if(!action->set_param("param",String("bline")))
 690                                         synfig::error("LayerParamConnect didn't like \"param\"");
 691                                 if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 692                                         synfig::error("LayerParamConnect didn't like \"value_node\"");
 693
 694                                 if(!get_canvas_interface()->get_instance()->perform_action(action))
 695                                 {
 696                                         //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 697                                         group.cancel();
 698                                         throw String(_("Unable to create Plant layer"));
 699                                         return false;
 700                                 }
 701                         }
 702
 703                         if (get_layer_link_offsets_flag())
 704                         {
 705                                 synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 706                                 assert(action);
 707
 708                                 action->set_param("canvas",get_canvas());
 709                                 action->set_param("canvas_interface",get_canvas_interface());
 710                                 action->set_param("layer",layer);
 711                                 if(!action->set_param("param",String("offset")))
 712                                         synfig::error("LayerParamConnect didn't like \"param\"");
 713                                 if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
 714                                         synfig::error("LayerParamConnect didn't like \"value_node\"");
 715
 716                                 if(!get_canvas_interface()->get_instance()->perform_action(action))
 717                                 {
 718                                         //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 719                                         group.cancel();
 720                                         throw String(_("Unable to create Plant layer"));
 721                                         return false;
 722                                 }
 723                         }
 724                 }
 725
 726                 ///////////////////////////////////////////////////////////////////////////
 727                 //   R E G I O N
 728                 ///////////////////////////////////////////////////////////////////////////
 729
 730                 if(get_layer_region_flag())
 731                 {
 732                         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 733
 734                         Layer::Handle layer(get_canvas_interface()->add_layer_to("region",canvas,depth));
 735                         assert(layer);
 736                         layer_selection.push_back(layer);
 737                         layer->set_description(get_id()+_(" Region"));
 738                         get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 739
 740                         if(get_feather())
 741                         {
 742                                 layer->set_param("feather",get_feather());
 743                                 get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
 744                         }
 745
 746                         if(get_layer_outline_flag())
 747                                 layer->set_param("color",synfigapp::Main::get_background_color());
 748
 749                         // I don't know if it's safe to reuse the same layer_param_connect action, so I'm
 750                         // using 2 separate ones.
 751                         {
 752                                 synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 753                                 assert(action);
 754
 755                                 action->set_param("canvas",get_canvas());
 756                                 action->set_param("canvas_interface",get_canvas_interface());
 757                                 action->set_param("layer",layer);
 758                                 if(!action->set_param("param",String("bline")))
 759                                         synfig::error("LayerParamConnect didn't like \"param\"");
 760                                 if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 761                                         synfig::error("LayerParamConnect didn't like \"value_node\"");
 762
 763                                 if(!get_canvas_interface()->get_instance()->perform_action(action))
 764                                 {
 765                                         //get_canvas_view()->get_ui_interface()->error(_("Unable to create Region layer"));
 766                                         group.cancel();
 767                                         throw String(_("Unable to create Region layer"));
 768                                         return false;
 769                                 }
 770                         }
 771
 772                         if (get_layer_link_offsets_flag())
 773                         {
 774                                 synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 775                                 assert(action);
 776
 777                                 action->set_param("canvas",get_canvas());
 778                                 action->set_param("canvas_interface",get_canvas_interface());
 779                                 action->set_param("layer",layer);
 780                                 if(!action->set_param("param",String("offset")))
 781                                         synfig::error("LayerParamConnect didn't like \"param\"");
 782                                 if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
 783                                         synfig::error("LayerParamConnect didn't like \"value_node\"");
 784
 785                                 if(!get_canvas_interface()->get_instance()->perform_action(action))
 786                                 {
 787                                         //get_canvas_view()->get_ui_interface()->error(_("Unable to create Region layer"));
 788                                         group.cancel();
 789                                         throw String(_("Unable to create Region layer"));
 790                                         return false;
 791                                 }
 792                         }
 793                 }
 794
 795                 ///////////////////////////////////////////////////////////////////////////
 796                 //   O U T L I N E
 797                 ///////////////////////////////////////////////////////////////////////////
 798
 799                 if(get_layer_outline_flag())
 800                 {
 801                         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 802
 803                         Layer::Handle layer(get_canvas_interface()->add_layer_to("outline",canvas,depth));
 804                         assert(layer);
 805                         layer_selection.push_back(layer);
 806                         layer->set_description(get_id()+_(" Outline"));
 807                         get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 808                         if(get_feather())
 809                         {
 810                                 layer->set_param("feather",get_feather());
 811                                 get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
 812                         }
 813
 814                         {
 815                                 synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 816                                 assert(action);
 817
 818                                 action->set_param("canvas",get_canvas());
 819                                 action->set_param("canvas_interface",get_canvas_interface());
 820                                 action->set_param("layer",layer);
 821                                 if(!action->set_param("param",String("bline")))
 822                                         synfig::error("LayerParamConnect didn't like \"param\"");
 823                                 if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 824                                         synfig::error("LayerParamConnect didn't like \"value_node\"");
 825
 826                                 if(!get_canvas_interface()->get_instance()->perform_action(action))
 827                                 {
 828                                         //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 829                                         group.cancel();
 830                                         throw String(_("Unable to create Outline layer"));
 831                                         return false;
 832                                 }
 833                         }
 834
 835                         if (get_layer_link_offsets_flag())
 836                         {
 837                                 synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 838                                 assert(action);
 839
 840                                 action->set_param("canvas",get_canvas());
 841                                 action->set_param("canvas_interface",get_canvas_interface());
 842                                 action->set_param("layer",layer);
 843                                 if(!action->set_param("param",String("offset")))
 844                                         synfig::error("LayerParamConnect didn't like \"param\"");
 845                                 if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
 846                                         synfig::error("LayerParamConnect didn't like \"value_node\"");
 847
 848                                 if(!get_canvas_interface()->get_instance()->perform_action(action))
 849                                 {
 850                                         //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 851                                         group.cancel();
 852                                         throw String(_("Unable to create Outline layer"));
 853                                         return false;
 854                                 }
 855                         }
 856                 }
 857
 858                 egress_on_selection_change=false;
 859                 get_canvas_interface()->get_selection_manager()->clear_selected_layers();
 860                 get_canvas_interface()->get_selection_manager()->set_selected_layers(layer_selection);
 861                 egress_on_selection_change=true;
 862
 863                 //if(finish_bline_dialog.get_region_flag() || finish_bline_dialog.get_bline_flag())
 864                 //      get_canvas_interface()->signal_dirty_preview()();
 865
 866         } while(0);
 867
 868         reset();
 869         increment_id();
 870         return true;
 871 }
 872
 873 Smach::event_result
 874 StateBLine_Context::event_mouse_motion_handler(const Smach::event& x)
 875 {
 876         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 877
 878         if(curr_duck)
 879         {
 880                 //synfig::info("Moved Duck");
 881                 Point p(get_work_area()->snap_point_to_grid(event.pos));
 882                 curr_duck->set_trans_point(p);
 883                 if(next_duck)
 884                         next_duck->set_trans_point(p);
 885                 get_work_area()->queue_draw();
 886                 return Smach::RESULT_ACCEPT;
 887         }
 888
 889         return Smach::RESULT_OK;
 890 }
 891
 892 Smach::event_result
 893 StateBLine_Context::event_mouse_release_handler(const Smach::event& /*x*/)
 894 {
 895         if(curr_duck)
 896         {
 897                 //synfig::info("Released current duck");
 898                 curr_duck->signal_edited()(curr_duck->get_point());
 899                 if(next_duck)
 900                 {
 901                         //synfig::info("grabbing next duck");
 902                         curr_duck=next_duck;
 903                         next_duck=0;
 904                 }
 905                 return Smach::RESULT_ACCEPT;
 906         }
 907         return Smach::RESULT_OK;
 908 }
 909
 910 Smach::event_result
 911 StateBLine_Context::event_mouse_click_handler(const Smach::event& x)
 912 {
 913         // synfig::info("STATE BLINE: Received mouse button down Event");
 914         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 915         switch(event.button)
 916         {
 917         case BUTTON_LEFT:
 918                 {
 919                         // If we are already looped up, then don't try to add anything else
 920                         if(loop_)
 921                                 return Smach::RESULT_OK;
 922
 923                         BLinePoint bline_point;
 924
 925                         bline_point.set_vertex(get_work_area()->snap_point_to_grid(event.pos));
 926                         //bline_point.set_width(synfigapp::Main::get_bline_width());
 927                         bline_point.set_width(1.0f);
 928                         bline_point.set_origin(0.5f);
 929                         bline_point.set_split_tangent_flag(false);
 930                         bline_point.set_tangent1(Vector(0,0));
 931
 932                         // set the tangent
 933                         /*
 934                         if(bline_point_list.empty())
 935                         {
 936                                 bline_point.set_tangent1(Vector(1,1));
 937                         }
 938                         else
 939                         {
 940                                 const Vector t(event.pos-bline_point_list.back()->get_value().get(BLinePoint()).get_vertex());
 941                                 bline_point.set_tangent1(t);
 942                         }
 943
 944                         if(bline_point_list.size()>1)
 945                         {
 946                                 std::list<synfig::ValueNode_Const::Handle>::iterator iter;
 947                                 iter=bline_point_list.end();
 948                                 iter--;iter--;
 949                                 BLinePoint prev(bline_point_list.back()->get_value().get(BLinePoint()));
 950                                 prev.set_tangent1(event.pos-(*iter)->get_value().get(BLinePoint()).get_vertex());
 951                                 bline_point_list.back()->set_value(prev);
 952                         };
 953                         */
 954
 955                         bline_point_list.push_back(ValueNode_Const::create(bline_point));
 956
 957                         refresh_ducks();
 958                         return Smach::RESULT_ACCEPT;
 959                 }
 960
 961         case BUTTON_RIGHT: // Intercept the right-button click to short-circuit the pop-up menu
 962                 if (!getenv("SYNFIG_ENABLE_POPUP_MENU_IN_ALL_TOOLS"))
 963                         return Smach::RESULT_ACCEPT;
 964
 965         default:
 966                 return Smach::RESULT_OK;
 967         }
 968 }
 969
 970 void
 971 StateBLine_Context::refresh_ducks(bool button_down)
 972 {
 973         get_work_area()->clear_ducks();
 974         get_work_area()->queue_draw();
 975
 976         if(bline_point_list.empty())
 977                 return;
 978
 979         list<ValueNode_Const::Handle>::iterator iter;
 980
 981         handle<WorkArea::Bezier> bezier;
 982         handle<WorkArea::Duck> duck,tduck;
 983         BLinePoint bline_point;
 984
 985         for(iter=bline_point_list.begin();iter!=bline_point_list.end();++iter)
 986         {
 987                 ValueNode_Const::Handle value_node(*iter);
 988                 bline_point=(value_node->get_value().get(BLinePoint()));
 989                 assert(value_node);
 990
 991
 992                 // First add the duck associated with this vertex
 993                 duck=new WorkArea::Duck(bline_point.get_vertex());
 994                 duck->set_editable(true);
 995 #ifdef DISTINGUISH_FIRST_DUCK
 996                 if (iter!=bline_point_list.begin())
 997                         duck->set_type(Duck::TYPE_VERTEX);
 998 #else
 999                 duck->set_type(Duck::TYPE_VERTEX);
1000 #endif
1001                 duck->set_name(strprintf("%x-vertex",value_node.get()));
1002                 duck->signal_edited().connect(
1003                         sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::on_vertex_change),value_node)
1004                 );
1005                 duck->signal_user_click(2).connect(
1006                         sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::popup_vertex_menu),value_node)
1007                 );
1008                 duck->set_guid(value_node->get_guid()^synfig::GUID::hasher(0));
1009
1010                 get_work_area()->add_duck(duck);
1011
1012                 // Add the tangent1 duck
1013                 tduck=new WorkArea::Duck(bline_point.get_tangent1());
1014                 tduck->set_editable(true);
1015                 tduck->set_name(strprintf("%x-tangent1",value_node.get()));
1016                 tduck->set_origin(duck);
1017                 tduck->set_scalar(-0.33333333333333333);
1018                 tduck->set_tangent(true);
1019                 tduck->set_guid(value_node->get_guid()^synfig::GUID::hasher(3));
1020                 tduck->signal_edited().connect(
1021                         sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::on_tangent1_change),value_node)
1022                 );
1023                 tduck->signal_user_click(2).connect(
1024                         sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::popup_handle_menu),value_node)
1025                 );
1026
1027                 // See if we need to add that duck to the previous bezier
1028                 if(bezier)
1029                 {
1030                         get_work_area()->add_duck(tduck);
1031                         bezier->p2=duck;
1032                         bezier->c2=tduck;
1033
1034                         bezier->signal_user_click(2).connect(
1035                                 sigc::bind(
1036                                         sigc::mem_fun(
1037                                                 *this,
1038                                                 &studio::StateBLine_Context::popup_bezier_menu
1039                                         ),
1040                                         value_node
1041                                 )
1042                         );
1043
1044                         //get_work_area()->add_duck(bezier->c1);
1045                         //get_work_area()->add_duck(bezier->c2);
1046                         get_work_area()->add_bezier(bezier);
1047
1048                         bezier=0;
1049                 }
1050
1051                 // Now we see if we need to create a bezier
1052                 list<ValueNode_Const::Handle>::iterator next(iter);
1053                 next++;
1054
1055                 // If our next iterator is the end, then we don't need
1056                 // to add a bezier.
1057                 //if(next==bline_point_list.end() && !loop_)
1058                 //      continue;
1059
1060                 bezier=new WorkArea::Bezier();
1061
1062                 // Add the tangent2 duck
1063                 tduck=new WorkArea::Duck(bline_point.get_tangent2());
1064                 tduck->set_editable(true);
1065                 tduck->set_origin(duck);
1066                 tduck->set_scalar(0.33333333333333333);
1067                 tduck->set_tangent(true);
1068                 if(bline_point.get_split_tangent_flag())
1069                 {
1070                         tduck->set_name(strprintf("%x-tangent2",value_node.get()));
1071                         tduck->signal_edited().connect(
1072                                 sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::on_tangent2_change),value_node)
1073                         );
1074                 }
1075                 else
1076                 {
1077                         tduck->set_name(strprintf("%x-tangent1",value_node.get()));
1078                         tduck->signal_edited().connect(
1079                                 sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::on_tangent1_change),value_node)
1080                         );
1081                 }
1082                 tduck->set_guid(value_node->get_guid()^synfig::GUID::hasher(4));
1083                 tduck->signal_user_click(2).connect(
1084                         sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::popup_handle_menu),value_node)
1085                 );
1086
1087                 // Setup the next bezier
1088                 bezier->p1=duck;
1089                 bezier->c1=tduck;
1090
1091                 get_work_area()->add_duck(tduck);
1092                 curr_duck=tduck;
1093         }
1094
1095         // Add the loop, if requested
1096         if(bezier && loop_)
1097         {
1098                 curr_duck=0;
1099                 BLinePoint bline_point(bline_point_list.front()->get_value().get(BLinePoint()));
1100
1101                 duck=new WorkArea::Duck(bline_point.get_vertex());
1102                 duck->set_editable(true);
1103 #ifndef DISTINGUISH_FIRST_DUCK
1104                 duck->set_type(Duck::TYPE_VERTEX);
1105 #endif
1106                 duck->set_name(strprintf("%x-vertex",bline_point_list.front().get()));
1107                 duck->signal_edited().connect(
1108                         sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::on_vertex_change),bline_point_list.front())
1109                 );
1110                 duck->signal_user_click(2).connect(
1111                         sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::popup_vertex_menu),bline_point_list.front())
1112                 );
1113                 get_work_area()->add_duck(duck);
1114
1115                 // Add the tangent1 duck
1116                 tduck=new WorkArea::Duck(bline_point.get_tangent1());
1117                 tduck->set_editable(true);
1118                 tduck->set_name(strprintf("%x-tangent1",bline_point_list.front().get()));
1119                 tduck->set_origin(duck);
1120                 tduck->set_scalar(-0.33333333333333333);
1121                 tduck->set_tangent(true);
1122                 tduck->signal_edited().connect(
1123                         sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::on_tangent1_change),bline_point_list.front())
1124                 );
1125                 tduck->signal_user_click(2).connect(
1126                         sigc::bind(sigc::mem_fun(*this,&studio::StateBLine_Context::popup_handle_menu),bline_point_list.front())
1127                 );
1128                 get_work_area()->add_duck(tduck);
1129
1130                 bezier->p2=duck;
1131                 bezier->c2=tduck;
1132
1133                 bezier->signal_user_click(2).connect(
1134                         sigc::bind(
1135                                 sigc::mem_fun(
1136                                         *this,
1137                                         &studio::StateBLine_Context::popup_bezier_menu
1138                                 ),
1139                                 bline_point_list.front()
1140                         )
1141                 );
1142
1143                 //get_work_area()->add_duck(bezier->c1);
1144                 get_work_area()->add_bezier(bezier);
1145         }
1146         if(bezier && !loop_)
1147         {
1148                 duck=new WorkArea::Duck(bline_point.get_vertex());
1149                 duck->set_ignore(true);
1150                 duck->set_name("temp");
1151
1152                 // Add the tangent1 duck
1153                 tduck=new WorkArea::Duck(Vector(0,0));
1154                 tduck->set_ignore(true);
1155                 tduck->set_name("ttemp");
1156                 tduck->set_origin(duck);
1157                 tduck->set_scalar(-0.33333333333333333);
1158
1159                 tduck->set_tangent(true);
1160                 bezier->p2=duck;
1161                 bezier->c2=tduck;
1162
1163                 get_work_area()->add_duck(bezier->p2);
1164                 //get_work_area()->add_duck(bezier->c2);
1165                 get_work_area()->add_bezier(bezier);
1166
1167                 duck->set_guid(synfig::GUID());
1168                 tduck->set_guid(synfig::GUID());
1169
1170                 next_duck=duck;
1171         }
1172
1173         if(!button_down)
1174         {
1175                 if(curr_duck)
1176                 {
1177                         if(next_duck)
1178                         {
1179                                 curr_duck=next_duck;
1180                                 next_duck=0;
1181                         }
1182                 }
1183         }
1184         get_work_area()->queue_draw();
1185 }
1186
1187
1188 bool
1189 StateBLine_Context::on_vertex_change(const synfig::Point &point, synfig::ValueNode_Const::Handle value_node)
1190 {
1191         BLinePoint bline_point(value_node->get_value().get(BLinePoint()));
1192         bline_point.set_vertex(point);
1193         value_node->set_value(bline_point);
1194         //refresh_ducks();
1195         return true;
1196 }
1197
1198 bool
1199 StateBLine_Context::on_tangent1_change(const synfig::Point &point, synfig::ValueNode_Const::Handle value_node)
1200 {
1201         BLinePoint bline_point(value_node->get_value().get(BLinePoint()));
1202         bline_point.set_tangent1(point);
1203         value_node->set_value(bline_point);
1204         //refresh_ducks();
1205         return true;
1206 }
1207
1208 bool
1209 StateBLine_Context::on_tangent2_change(const synfig::Point &point, synfig::ValueNode_Const::Handle value_node)
1210 {
1211         BLinePoint bline_point(value_node->get_value().get(BLinePoint()));
1212         bline_point.set_tangent2(point);
1213         value_node->set_value(bline_point);
1214         //refresh_ducks();
1215         return true;
1216 }
1217
1218 void
1219 StateBLine_Context::loop_bline()
1220 {
1221         loop_=true;
1222
1223         refresh_ducks(false);
1224 }
1225
1226 void
1227 StateBLine_Context::unloop_bline()
1228 {
1229         loop_=false;
1230
1231         refresh_ducks(false);
1232 }
1233
1234 void
1235 StateBLine_Context::popup_vertex_menu(synfig::ValueNode_Const::Handle value_node)
1236 {
1237         menu.items().clear();
1238
1239         if(loop_)
1240         {
1241                 menu.items().push_back(Gtk::Menu_Helpers::MenuElem(_("Unloop BLine"),
1242                                 sigc::mem_fun(*this,&studio::StateBLine_Context::unloop_bline)
1243                 ));
1244         } else {
1245                 menu.items().push_back(Gtk::Menu_Helpers::MenuElem(_("Loop BLine"),
1246                                 sigc::mem_fun(*this,&studio::StateBLine_Context::loop_bline)
1247                 ));
1248         }
1249
1250         menu.items().push_back(Gtk::Menu_Helpers::MenuElem(_("Delete Vertex"),
1251                 sigc::bind(
1252                         sigc::mem_fun(*this,&studio::StateBLine_Context::bline_delete_vertex),
1253                         value_node
1254                 )
1255         ));
1256
1257         menu.popup(0,0);
1258 }
1259
1260 void
1261 StateBLine_Context::popup_bezier_menu(float location, synfig::ValueNode_Const::Handle value_node)
1262 {
1263         menu.items().clear();
1264
1265         menu.items().push_back(Gtk::Menu_Helpers::MenuElem(_("Insert Vertex"),
1266                 sigc::bind(
1267                         sigc::bind(
1268                                 sigc::mem_fun(*this,&studio::StateBLine_Context::bline_insert_vertex),
1269                                 location
1270                         ),
1271                         value_node
1272                 )
1273         ));
1274
1275         menu.popup(0,0);
1276 }
1277
1278 void
1279 StateBLine_Context::bline_insert_vertex(synfig::ValueNode_Const::Handle value_node, float origin)
1280 {
1281         list<ValueNode_Const::Handle>::iterator iter;
1282
1283         for(iter=bline_point_list.begin();iter!=bline_point_list.end();++iter)
1284                 if(*iter==value_node)
1285                 {
1286                         BLinePoint bline_point;
1287                         BLinePoint next_bline_point((*iter)->get_value().get(BLinePoint()));
1288                         BLinePoint prev_bline_point;
1289
1290                         list<ValueNode_Const::Handle>::iterator prev(iter);
1291                         if(iter==bline_point_list.begin())
1292                         {
1293                                 assert(loop_);
1294                                 prev = bline_point_list.end();
1295                         }
1296                         prev--;
1297
1298                         prev_bline_point=(*prev)->get_value().get(BLinePoint());
1299
1300                         etl::hermite<Vector> curve(prev_bline_point.get_vertex(),
1301                                                                            next_bline_point.get_vertex(),
1302                                                                            prev_bline_point.get_tangent2(),
1303                                                                            next_bline_point.get_tangent1());
1304                         etl::derivative< etl::hermite<Vector> > deriv(curve);
1305
1306                         bline_point.set_vertex(curve(origin));
1307                         bline_point.set_width((next_bline_point.get_width()-prev_bline_point.get_width())*origin+prev_bline_point.get_width());
1308                         bline_point.set_tangent1(deriv(origin)*std::min(1.0f-origin,origin));
1309                         bline_point.set_tangent2(bline_point.get_tangent1());
1310                         bline_point.set_split_tangent_flag(false);
1311                         bline_point.set_origin(origin);
1312
1313 /*
1314                         bline_point.set_vertex((next_bline_point.get_vertex()+prev_bline_point.get_vertex())*0.5);
1315                         bline_point.set_width((next_bline_point.get_width()+prev_bline_point.get_width())*0.5);
1316                         bline_point.set_origin(origin);
1317                         bline_point.set_split_tangent_flag(false);
1318                         bline_point.set_tangent1((next_bline_point.get_vertex()-prev_bline_point.get_vertex())*0.5);
1319 */
1320
1321                         bline_point_list.insert(iter,ValueNode_Const::create(bline_point));
1322                         break;
1323                 }
1324
1325         if(iter==bline_point_list.end())
1326         {
1327                 get_canvas_view()->get_ui_interface()->error(_("Unable to find where to insert vertex, internal error, please report this bug"));
1328         }
1329
1330         refresh_ducks(false);
1331 }
1332
1333 void
1334 StateBLine_Context::bline_delete_vertex(synfig::ValueNode_Const::Handle value_node)
1335 {
1336         list<ValueNode_Const::Handle>::iterator iter;
1337
1338         for(iter=bline_point_list.begin();iter!=bline_point_list.end();++iter)
1339                 if(*iter==value_node)
1340                 {
1341                         bline_point_list.erase(iter);
1342                         break;
1343                 }
1344         if(iter==bline_point_list.end())
1345         {
1346                 get_canvas_view()->get_ui_interface()->error(_("Unable to remove vertex, internal error, please report this bug"));
1347         }
1348
1349         refresh_ducks(false);
1350 }
1351
1352 void
1353 StateBLine_Context::popup_handle_menu(synfig::ValueNode_Const::Handle value_node)
1354 {
1355         menu.items().clear();
1356
1357         BLinePoint bline_point(value_node->get_value().get(BLinePoint()));
1358
1359         if(bline_point.get_split_tangent_flag())
1360                 menu.items().push_back(Gtk::Menu_Helpers::MenuElem(_("Merge Tangents"),
1361                         sigc::bind(
1362                                 sigc::mem_fun(*this,&studio::StateBLine_Context::bline_attach_handle),
1363                                 value_node
1364                         )
1365                 ));
1366         else
1367                 menu.items().push_back(Gtk::Menu_Helpers::MenuElem(_("Split Tangents"),
1368                         sigc::bind(
1369                                 sigc::mem_fun(*this,&studio::StateBLine_Context::bline_detach_handle),
1370                                 value_node
1371                         )
1372                 ));
1373
1374         menu.popup(0,0);
1375 }
1376
1377 void
1378 StateBLine_Context::bline_detach_handle(synfig::ValueNode_Const::Handle value_node)
1379 {
1380         BLinePoint bline_point(value_node->get_value().get(BLinePoint()));
1381         bline_point.set_split_tangent_flag(true);
1382         bline_point.set_tangent2(bline_point.get_tangent1());
1383         value_node->set_value(bline_point);
1384         refresh_ducks(false);
1385 }
1386
1387 void
1388 StateBLine_Context::bline_attach_handle(synfig::ValueNode_Const::Handle value_node)
1389 {
1390         BLinePoint bline_point(value_node->get_value().get(BLinePoint()));
1391         bline_point.set_tangent1((bline_point.get_tangent1()+bline_point.get_tangent2())*0.5);
1392         bline_point.set_split_tangent_flag(false);
1393         value_node->set_value(bline_point);
1394         refresh_ducks(false);
1395 }