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