synfig-studio/src/gtkmm/state_draw.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file state_draw.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 Chris Moore
  10 **      Copyright (c) 2009 Nikita Kitaev
  11 **
  12 **      This package is free software; you can redistribute it and/or
  13 **      modify it under the terms of the GNU General Public License as
  14 **      published by the Free Software Foundation; either version 2 of
  15 **      the License, or (at your option) any later version.
  16 **
  17 **      This package is distributed in the hope that it will be useful,
  18 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  20 **      General Public License for more details.
  21 **      \endlegal
  22 */
  23 /* ========================================================================= */
  24
  25 /* === H E A D E R S ======================================================= */
  26
  27 #ifdef USING_PCH
  28 #       include "pch.h"
  29 #else
  30 #ifdef HAVE_CONFIG_H
  31 #       include <config.h>
  32 #endif
  33
  34 #include <gtkmm/dialog.h>
  35 #include <gtkmm/entry.h>
  36
  37 #include <synfig/valuenode_dynamiclist.h>
  38
  39 #include "state_draw.h"
  40 #include "state_stroke.h"
  41 #include "canvasview.h"
  42 #include "workarea.h"
  43 #include "app.h"
  44 #include <synfig/valuenode_bline.h>
  45 #include <synfig/valuenode_composite.h>
  46 #include <ETL/hermite>
  47 #include <ETL/calculus>
  48 #include <utility>
  49 #include "event_mouse.h"
  50 #include "event_layerclick.h"
  51 #include "toolbox.h"
  52
  53 #include <synfigapp/blineconvert.h>
  54 #include <synfigapp/main.h>
  55
  56 #include <ETL/gaussian>
  57 #include "dialog_tooloptions.h"
  58
  59 #include <gtkmm/table.h>
  60 #include <gtkmm/label.h>
  61 #include <gtkmm/button.h>
  62 #include <gtkmm/checkbutton.h>
  63 #include <gtkmm/scale.h>
  64 #include <sigc++/connection.h>
  65
  66 #include "general.h"
  67
  68 #endif
  69
  70 /* === U S I N G =========================================================== */
  71
  72 using namespace std;
  73 using namespace etl;
  74 using namespace synfig;
  75 using namespace studio;
  76
  77 /* === M A C R O S ========================================================= */
  78
  79 /* === G L O B A L S ======================================================= */
  80
  81 StateDraw studio::state_draw;
  82
  83 /* === C L A S S E S & S T R U C T S ======================================= */
  84
  85 class studio::StateDraw_Context : public sigc::trackable
  86 {
  87         typedef etl::smart_ptr<std::list<synfig::Point> > StrokeData;
  88         typedef etl::smart_ptr<std::list<synfig::Real> > WidthData;
  89
  90         typedef list< pair<StrokeData,WidthData> > StrokeQueue;
  91
  92         StrokeQueue stroke_queue;
  93
  94
  95         etl::handle<CanvasView> canvas_view_;
  96         CanvasView::IsWorking is_working;
  97
  98         bool prev_table_status;
  99         bool loop_;
 100         bool prev_workarea_layer_status_;
 101
 102         int nested;
 103         sigc::connection process_queue_connection;
 104
 105         ValueNode_BLine::Handle last_stroke;
 106         synfig::String last_stroke_id;
 107
 108         Gtk::Menu menu;
 109
 110         //Duckmatic::Push duckmatic_push;
 111
 112         std::list< etl::smart_ptr<std::list<synfig::Point> > > stroke_list;
 113
 114         void refresh_ducks();
 115
 116         Duckmatic::Type old_duckmask;
 117
 118         void fill_last_stroke();
 119         Smach::event_result fill_last_stroke_and_unselect_other_layers();
 120
 121         Smach::event_result new_bline(std::list<synfig::BLinePoint> bline,bool loop_bline_flag,float radius);
 122
 123         Smach::event_result new_region(std::list<synfig::BLinePoint> bline,synfig::Real radius);
 124
 125         Smach::event_result extend_bline_from_begin(ValueNode_BLine::Handle value_node,std::list<synfig::BLinePoint> bline,bool complete_loop);
 126         Smach::event_result extend_bline_from_end(ValueNode_BLine::Handle value_node,std::list<synfig::BLinePoint> bline,bool complete_loop);
 127         void reverse_bline(std::list<synfig::BLinePoint> &bline);
 128
 129         synfigapp::Settings& settings;
 130
 131         Gtk::Table options_table;
 132         Gtk::Entry entry_id;
 133         Gtk::CheckButton checkbutton_pressure_width;
 134         Gtk::CheckButton checkbutton_round_ends;
 135         Gtk::CheckButton checkbutton_auto_loop;   // whether to loop new strokes which start and end in the same place
 136         Gtk::CheckButton checkbutton_auto_extend; // whether to extend existing lines
 137         Gtk::CheckButton checkbutton_auto_link;   // whether to link new ducks to existing ducks
 138         Gtk::CheckButton checkbutton_region;      // whether to create regions
 139         Gtk::CheckButton checkbutton_outline;     // whether to create outlines
 140         Gtk::CheckButton checkbutton_auto_export;
 141         Gtk::Button button_fill_last_stroke;
 142
 143         //pressure spinner and such
 144         Gtk::Adjustment  adj_min_pressure;
 145         Gtk::SpinButton  spin_min_pressure;
 146         Gtk::CheckButton check_min_pressure;
 147
 148         Gtk::Adjustment  adj_feather;
 149         Gtk::SpinButton  spin_feather;
 150
 151         Gtk::Adjustment  adj_globalthres;
 152         Gtk::SpinButton  spin_globalthres;
 153
 154         Gtk::Adjustment  adj_localthres;
 155         Gtk::CheckButton check_localerror;
 156         void UpdateErrorBox();  //switches the stuff if need be :)
 157
 158         //Added by Adrian - data drive HOOOOO
 159         synfigapp::BLineConverter blineconv;
 160
 161 public:
 162         synfig::String get_id()const { return entry_id.get_text(); }
 163         void set_id(const synfig::String& x) { return entry_id.set_text(x); }
 164
 165         bool get_pressure_width_flag()const { return checkbutton_pressure_width.get_active(); }
 166         void set_pressure_width_flag(bool x) { return checkbutton_pressure_width.set_active(x); }
 167
 168         bool get_auto_loop_flag()const { return checkbutton_auto_loop.get_active(); }
 169         void set_auto_loop_flag(bool x) { return checkbutton_auto_loop.set_active(x); }
 170
 171         bool get_auto_extend_flag()const { return checkbutton_auto_extend.get_active(); }
 172         void set_auto_extend_flag(bool x) { return checkbutton_auto_extend.set_active(x); }
 173
 174         bool get_auto_link_flag()const { return checkbutton_auto_link.get_active(); }
 175         void set_auto_link_flag(bool x) { return checkbutton_auto_link.set_active(x); }
 176
 177         bool get_region_flag()const { return checkbutton_region.get_active(); }
 178         void set_region_flag(bool x) { return checkbutton_region.set_active(x); }
 179
 180         bool get_outline_flag()const { return checkbutton_outline.get_active(); }
 181         void set_outline_flag(bool x) { return checkbutton_outline.set_active(x); }
 182
 183         bool get_auto_export_flag()const { return checkbutton_auto_export.get_active(); }
 184         void set_auto_export_flag(bool x) { return checkbutton_auto_export.set_active(x); }
 185
 186         Real get_min_pressure() const { return adj_min_pressure.get_value(); }
 187         void set_min_pressure(Real x) { return adj_min_pressure.set_value(x); }
 188
 189         Real get_feather() const { return adj_feather.get_value(); }
 190         void set_feather(Real x) { return adj_feather.set_value(x); }
 191
 192         Real get_gthres() const { return adj_globalthres.get_value(); }
 193         void set_gthres(Real x) { return adj_globalthres.set_value(x); }
 194
 195         Real get_lthres() const { return adj_localthres.get_value(); }
 196         void set_lthres(Real x) { return adj_localthres.set_value(x); }
 197
 198         bool get_local_error_flag() const { return check_localerror.get_active(); }
 199         void set_local_error_flag(bool x) { check_localerror.set_active(x); }
 200
 201         bool get_min_pressure_flag()const { return check_min_pressure.get_active(); }
 202         void set_min_pressure_flag(bool x) { check_min_pressure.set_active(x); }
 203
 204         void load_settings();
 205         void save_settings();
 206         void increment_id();
 207
 208         Smach::event_result event_stop_handler(const Smach::event& x);
 209
 210         Smach::event_result event_refresh_handler(const Smach::event& x);
 211
 212         Smach::event_result event_mouse_down_handler(const Smach::event& x);
 213
 214         Smach::event_result event_stroke(const Smach::event& x);
 215         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 216         void refresh_tool_options();
 217
 218         Smach::event_result process_stroke(StrokeData stroke_data, WidthData width_data, bool region_flag=false);
 219
 220         bool process_queue();
 221
 222
 223         StateDraw_Context(CanvasView* canvas_view);
 224
 225         ~StateDraw_Context();
 226
 227         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 228         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 229         synfig::Time get_time()const { return get_canvas_interface()->get_time(); }
 230         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 231         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 232
 233         //void on_user_click(synfig::Point point);
 234
 235 //      bool run();
 236 };      // END of class StateDraw_Context
 237
 238
 239 /* === M E T H O D S ======================================================= */
 240
 241 StateDraw::StateDraw():
 242         Smach::state<StateDraw_Context>("draw")
 243 {
 244         insert(event_def(EVENT_STOP,&StateDraw_Context::event_stop_handler));
 245         insert(event_def(EVENT_REFRESH,&StateDraw_Context::event_refresh_handler));
 246         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateDraw_Context::event_mouse_down_handler));
 247         insert(event_def(EVENT_WORKAREA_STROKE,&StateDraw_Context::event_stroke));
 248         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateDraw_Context::event_refresh_tool_options));
 249 }
 250
 251 StateDraw::~StateDraw()
 252 {
 253 }
 254
 255
 256 void
 257 StateDraw_Context::load_settings()
 258 {
 259         String value;
 260
 261         if(settings.get_value("draw.id",value))
 262                 set_id(value);
 263         else
 264                 set_id("NewDrawing");
 265
 266         if(settings.get_value("draw.pressure_width",value) && value=="0")
 267                 set_pressure_width_flag(false);
 268         else
 269                 set_pressure_width_flag(true);
 270
 271         if(settings.get_value("draw.auto_loop",value) && value=="0")
 272                 set_auto_loop_flag(false);
 273         else
 274                 set_auto_loop_flag(true);
 275
 276         if(settings.get_value("draw.auto_extend",value) && value=="0")
 277                 set_auto_extend_flag(false);
 278         else
 279                 set_auto_extend_flag(true);
 280
 281         if(settings.get_value("draw.auto_link",value) && value=="0")
 282                 set_auto_link_flag(false);
 283         else
 284                 set_auto_link_flag(true);
 285
 286         if(settings.get_value("draw.region",value) && value=="0")
 287                 set_region_flag(false);
 288         else
 289                 set_region_flag(true);
 290
 291         if(settings.get_value("draw.outline",value) && value=="0")
 292                 set_outline_flag(false);
 293         else
 294                 set_outline_flag(true);
 295
 296         if(settings.get_value("draw.auto_export",value) && value=="1")
 297                 set_auto_export_flag(true);
 298         else
 299                 set_auto_export_flag(false);
 300
 301         if(settings.get_value("draw.min_pressure_on",value) && value=="0")
 302                 set_min_pressure_flag(false);
 303         else
 304                 set_min_pressure_flag(true);
 305
 306         if(settings.get_value("draw.min_pressure",value))
 307         {
 308                 Real n = atof(value.c_str());
 309                 set_min_pressure(n);
 310         }else
 311                 set_min_pressure(0);
 312
 313         if(settings.get_value("draw.feather",value))
 314         {
 315                 Real n = atof(value.c_str());
 316                 set_feather(n);
 317         }else
 318                 set_feather(0);
 319
 320         if(settings.get_value("draw.gthreshold",value))
 321         {
 322                 Real n = atof(value.c_str());
 323                 set_gthres(n);
 324         }
 325
 326         if(settings.get_value("draw.lthreshold",value))
 327         {
 328                 Real n = atof(value.c_str());
 329                 set_lthres(n);
 330         }
 331
 332         if(settings.get_value("draw.localize",value) && value == "1")
 333                 set_local_error_flag(true);
 334         else
 335                 set_local_error_flag(false);
 336 }
 337
 338 void
 339 StateDraw_Context::save_settings()
 340 {
 341         settings.set_value("draw.id",get_id().c_str());
 342         settings.set_value("draw.pressure_width",get_pressure_width_flag()?"1":"0");
 343         settings.set_value("draw.auto_loop",get_auto_loop_flag()?"1":"0");
 344         settings.set_value("draw.auto_extend",get_auto_extend_flag()?"1":"0");
 345         settings.set_value("draw.auto_link",get_auto_link_flag()?"1":"0");
 346         settings.set_value("draw.region",get_region_flag()?"1":"0");
 347         settings.set_value("draw.outline",get_outline_flag()?"1":"0");
 348         settings.set_value("draw.auto_export",get_auto_export_flag()?"1":"0");
 349         settings.set_value("draw.min_pressure",strprintf("%f",get_min_pressure()));
 350         settings.set_value("draw.feather",strprintf("%f",get_feather()));
 351         settings.set_value("draw.min_pressure_on",get_min_pressure_flag()?"1":"0");
 352         settings.set_value("draw.gthreshold",strprintf("%f",get_gthres()));
 353         settings.set_value("draw.lthreshold",strprintf("%f",get_lthres()));
 354         settings.set_value("draw.localize",get_local_error_flag()?"1":"0");
 355 }
 356
 357 void
 358 StateDraw_Context::increment_id()
 359 {
 360         String id(get_id());
 361         int number=1;
 362         int digits=0;
 363
 364         if(id.empty())
 365                 id="Drawing";
 366
 367         // If there is a number
 368         // already at the end of the
 369         // id, then remove it.
 370         if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
 371         {
 372                 // figure out how many digits it is
 373                 for (digits = 0;
 374                          (int)id.size()-1 >= digits && id[id.size()-1-digits] <= '9' && id[id.size()-1-digits] >= '0';
 375                          digits++)
 376                         ;
 377
 378                 String str_number;
 379                 str_number=String(id,id.size()-digits,id.size());
 380                 id=String(id,0,id.size()-digits);
 381                 // synfig::info("---------------- \"%s\"",str_number.c_str());
 382
 383                 number=atoi(str_number.c_str());
 384         }
 385         else
 386         {
 387                 number=1;
 388                 digits=3;
 389         }
 390
 391         number++;
 392
 393         // Add the number back onto the id
 394         {
 395                 const String format(strprintf("%%0%dd",digits));
 396                 id+=strprintf(format.c_str(),number);
 397         }
 398
 399         // Set the ID
 400         set_id(id);
 401 }
 402
 403 StateDraw_Context::StateDraw_Context(CanvasView* canvas_view):
 404         canvas_view_(canvas_view),
 405         is_working(*canvas_view),
 406         loop_(false),
 407         prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
 408         settings(synfigapp::Main::get_selected_input_device()->settings()),
 409         entry_id(),
 410         checkbutton_pressure_width(_("Pressure Width")),
 411         checkbutton_auto_loop(_("Auto Loop")),
 412         checkbutton_auto_extend(_("Auto Extend")),
 413         checkbutton_auto_link(_("Auto Link")),
 414         checkbutton_region(_("Create Region BLine")),
 415         checkbutton_outline(_("Create Outline BLine")),
 416         checkbutton_auto_export(_("Auto Export")),
 417         button_fill_last_stroke(_("Fill Last Stroke")),
 418         adj_min_pressure(0,0,1,0.01,0.1),
 419         spin_min_pressure(adj_min_pressure,0.1,3),
 420         check_min_pressure(_("Min Pressure")),
 421         adj_feather(0,0,10000,0.01,0.1),
 422         spin_feather(adj_feather,0.01,4),
 423         adj_globalthres(.70f,0.01,10000,0.01,0.1),
 424         spin_globalthres(adj_globalthres,0.01,3),
 425         adj_localthres(20,1,100000,0.1,1),
 426         check_localerror(_("LocalError"))
 427
 428 {
 429         nested=0;
 430         load_settings();
 431
 432         UpdateErrorBox();
 433
 434         options_table.attach(*manage(new Gtk::Label(_("Draw Tool"))),   0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 435         options_table.attach(entry_id,                                                                  0, 2,  1,  2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 436         options_table.attach(checkbutton_outline,                                               0, 2,  2,  3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 437         options_table.attach(checkbutton_region,                                                0, 2,  3,  4, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 438         options_table.attach(checkbutton_auto_loop,                                             0, 2,  4,  5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 439         options_table.attach(checkbutton_auto_extend,                                   0, 2,  5,  6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 440         options_table.attach(checkbutton_auto_link,                                             0, 2,  6,  7, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 441         options_table.attach(checkbutton_auto_export,                                   0, 2,  7,  8, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 442         options_table.attach(checkbutton_pressure_width,                                0, 2,  8,  9, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 443         options_table.attach(check_localerror,                                                  0, 2,  9, 10, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 444
 445         options_table.attach(check_min_pressure,                                                0, 1, 10, 11, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 446         options_table.attach(spin_min_pressure,                                                 1, 2, 10, 11, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 447
 448         options_table.attach(*manage(new Gtk::Label(_("Smooth"))),              0, 1, 11, 12, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 449         options_table.attach(spin_globalthres,                                                  1, 2, 11, 12, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 450
 451         options_table.attach(*manage(new Gtk::Label(_("Feather"))),     0, 1, 12, 13, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 452         options_table.attach(spin_feather,                                                              1, 2, 12, 13, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 453
 454         //options_table.attach(button_fill_last_stroke, 0, 2, 13, 14, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 455
 456         button_fill_last_stroke.signal_pressed().connect(sigc::mem_fun(*this,&StateDraw_Context::fill_last_stroke));
 457         check_localerror.signal_toggled().connect(sigc::mem_fun(*this,&StateDraw_Context::UpdateErrorBox));
 458
 459         options_table.show_all();
 460         refresh_tool_options();
 461         //App::dialog_tool_options->set_widget(options_table);
 462         App::dialog_tool_options->present();
 463
 464
 465         old_duckmask=get_work_area()->get_type_mask();
 466         get_work_area()->set_type_mask(Duck::TYPE_ALL-Duck::TYPE_TANGENT-Duck::TYPE_WIDTH);
 467
 468         // Turn off layer clicking
 469         get_work_area()->set_allow_layer_clicks(false);
 470
 471         // Turn off duck clicking
 472         get_work_area()->set_allow_duck_clicks(false);
 473
 474         // clear out the ducks
 475         //get_work_area()->clear_ducks();
 476
 477         // Refresh the work area
 478         //get_work_area()->queue_draw();
 479
 480         // Hide the tables if they are showing
 481         prev_table_status=get_canvas_view()->tables_are_visible();
 482         //if(prev_table_status)get_canvas_view()->hide_tables();
 483
 484         // Disable the time bar
 485         get_canvas_view()->set_sensitive_timebar(false);
 486
 487         // Connect a signal
 488         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StateDraw_Context::on_user_click));
 489
 490         get_canvas_view()->work_area->set_cursor(Gdk::PENCIL);
 491
 492         App::toolbox->refresh();
 493
 494         refresh_ducks();
 495 }
 496
 497
 498 void StateDraw_Context::UpdateErrorBox()
 499 {
 500         if(get_local_error_flag())
 501         {
 502                 spin_globalthres.set_adjustment(adj_localthres);
 503                 spin_globalthres.set_value(adj_localthres.get_value());
 504                 spin_globalthres.set_increments(0.1,1);
 505         }else
 506         {
 507                 spin_globalthres.set_adjustment(adj_globalthres);
 508                 spin_globalthres.set_value(adj_globalthres.get_value());
 509                 spin_globalthres.set_increments(0.01,.1);
 510         }
 511
 512         spin_globalthres.update();
 513 }
 514
 515 void
 516 StateDraw_Context::refresh_tool_options()
 517 {
 518         App::dialog_tool_options->clear();
 519         App::dialog_tool_options->set_widget(options_table);
 520         App::dialog_tool_options->set_local_name(_("Draw Tool"));
 521         App::dialog_tool_options->set_name("draw");
 522
 523         App::dialog_tool_options->add_button(
 524                 Gtk::StockID("synfig-fill"),
 525                 _("Fill Last Stroke")
 526         )->signal_clicked().connect(
 527                 sigc::mem_fun(
 528                         *this,
 529                         &StateDraw_Context::fill_last_stroke));
 530 }
 531
 532 Smach::event_result
 533 StateDraw_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 534 {
 535         refresh_tool_options();
 536         return Smach::RESULT_ACCEPT;
 537 }
 538
 539 StateDraw_Context::~StateDraw_Context()
 540 {
 541         save_settings();
 542
 543         App::dialog_tool_options->clear();
 544
 545         get_work_area()->set_type_mask(old_duckmask);
 546
 547         get_canvas_view()->work_area->reset_cursor();
 548
 549         // Restore layer clicking
 550         get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
 551
 552         // Restore duck clicking
 553         get_work_area()->set_allow_duck_clicks(true);
 554
 555         // Enable the time bar
 556         get_canvas_view()->set_sensitive_timebar(true);
 557
 558         // Bring back the tables if they were out before
 559         if(prev_table_status)get_canvas_view()->show_tables();
 560
 561         // Refresh the work area
 562         get_work_area()->queue_draw();
 563
 564         App::toolbox->refresh();
 565 }
 566
 567 Smach::event_result
 568 StateDraw_Context::event_stop_handler(const Smach::event& /*x*/)
 569 {
 570         //throw Smach::egress_exception();
 571         throw &state_normal;
 572         return Smach::RESULT_OK;
 573 }
 574
 575 Smach::event_result
 576 StateDraw_Context::event_refresh_handler(const Smach::event& /*x*/)
 577 {
 578         refresh_ducks();
 579         return Smach::RESULT_ACCEPT;
 580 }
 581
 582 Smach::event_result
 583 StateDraw_Context::event_mouse_down_handler(const Smach::event& x)
 584 {
 585         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 586         switch(event.button)
 587         {
 588         case BUTTON_LEFT:
 589                 {
 590                         // Enter the stroke state to get the stroke
 591                         get_canvas_view()->get_smach().push_state(&state_stroke);
 592                         return Smach::RESULT_ACCEPT;
 593                 }
 594
 595         default:
 596                 return Smach::RESULT_OK;
 597         }
 598 }
 599
 600 #define SIMILAR_TANGENT_THRESHOLD       (0.2)
 601
 602 struct debugclass
 603 {
 604         synfig::String x;
 605         debugclass(const synfig::String &x):x(x)
 606         {
 607 //              synfig::warning(">>>>>>>>>>>>>>>>>>> "+x);
 608         }
 609         ~debugclass()
 610         {
 611 //              synfig::warning("<<<<<<<<<<<<<<<<<<< "+x);
 612         }
 613 };
 614
 615 struct DepthCounter
 616 {
 617         int &i;
 618         DepthCounter(int &i):i(i) { i++; }
 619         ~DepthCounter() { i--; }
 620 };
 621
 622 Smach::event_result
 623 StateDraw_Context::event_stroke(const Smach::event& x)
 624 {
 625 //      debugclass debugger("StateDraw_Context::event_stroke(const Smach::event& x)");
 626
 627         const EventStroke& event(*reinterpret_cast<const EventStroke*>(&x));
 628
 629         assert(event.stroke_data);
 630
 631         get_work_area()->add_stroke(event.stroke_data,synfigapp::Main::get_outline_color());
 632
 633         if(nested==0)
 634         {
 635                 DirtyTrap dirty_trap(get_work_area());
 636                 Smach::event_result result;
 637                 result=process_stroke(event.stroke_data,event.width_data,event.modifier&Gdk::CONTROL_MASK || event.modifier&Gdk::BUTTON2_MASK);
 638                 process_queue();
 639                 return result;
 640         }
 641
 642         stroke_queue.push_back(pair<StrokeData,WidthData>(event.stroke_data,event.width_data));
 643
 644         return Smach::RESULT_ACCEPT;
 645 }
 646
 647 bool
 648 StateDraw_Context::process_queue()
 649 {
 650 //      debugclass debugger("StateDraw_Context::process_queue()");
 651         if(nested)
 652                 return true;
 653         DepthCounter depth_counter(nested);
 654         while(!stroke_queue.empty())
 655         {
 656                 pair<StrokeData,WidthData> front(stroke_queue.front());
 657                 process_stroke(front.first,front.second);
 658                 stroke_queue.pop_front();
 659         }
 660         return false;
 661 }
 662
 663 Smach::event_result
 664 StateDraw_Context::process_stroke(StrokeData stroke_data, WidthData width_data, bool region_flag)
 665 {
 666 //      debugclass debugger("StateDraw_Context::process_stroke");
 667         DepthCounter depth_counter(nested);
 668
 669         const float radius(synfigapp::Main::get_bline_width().units(get_canvas()->rend_desc())+(abs(get_work_area()->get_pw())+abs(get_work_area()->get_ph()))*5);
 670
 671
 672         // If we aren't using pressure width,
 673         // then set all the width to 1
 674         if(!get_pressure_width_flag())
 675         {
 676                 std::list<synfig::Real>::iterator iter;
 677                 for(iter=width_data->begin();iter!=width_data->end();++iter)
 678                 {
 679                         *iter=1.0;
 680                 }
 681         }
 682
 683         //get_work_area()->add_stroke(event.stroke_data,synfigapp::Main::get_outline_color());
 684         //stroke_list.push_back(event.stroke_data);
 685         //refresh_ducks();
 686
 687         std::list<synfig::BLinePoint> bline;
 688         bool loop_bline_flag(false);
 689
 690         //Changed by Adrian - use resident class :)
 691         //synfigapp::convert_stroke_to_bline(bline, *event.stroke_data,*event.width_data, synfigapp::Main::get_bline_width());
 692         blineconv.width = synfigapp::Main::get_bline_width().units(get_canvas()->rend_desc());
 693
 694         if(get_local_error_flag())
 695         {
 696                 float pw = get_work_area()->get_pw();
 697                 float ph = get_work_area()->get_ph();
 698
 699                 blineconv.pixelwidth = sqrt(pw*pw+ph*ph);
 700                 blineconv.smoothness = get_lthres();
 701         }else
 702         {
 703                 blineconv.pixelwidth = 1;
 704                 blineconv.smoothness = get_gthres();
 705         }
 706
 707         blineconv(bline,*stroke_data,*width_data);
 708
 709         //Postprocess to require minimum pressure
 710         if(get_min_pressure_flag())
 711         {
 712                 synfigapp::BLineConverter::EnforceMinWidth(bline,get_min_pressure());
 713         }
 714
 715         // If the start and end points are similar, then make them the same point
 716         if (get_auto_loop_flag() &&
 717                 bline.size() > 2 &&
 718                 (bline.front().get_vertex() - bline.back().get_vertex()).mag() <= radius)
 719         {
 720                 loop_bline_flag=true;
 721                 Vector tangent;
 722                 Real width(0);
 723
 724                 while (bline.size() > 2 &&
 725                            (bline.front().get_vertex() - bline.back().get_vertex()).mag() <= radius)
 726                 {
 727                         tangent=bline.back().get_tangent1();
 728                         width=bline.back().get_width();
 729                         bline.pop_back();
 730                 }
 731
 732                 if(abs(bline.front().get_tangent1().norm()*tangent.norm().perp())>SIMILAR_TANGENT_THRESHOLD)
 733                 {
 734                         // If the tangents are not similar, then
 735                         // split the tangents
 736                         bline.front().set_split_tangent_flag(true);
 737                         bline.front().set_tangent1(tangent);
 738                 }
 739                 else
 740                 {
 741                         // If the tangents are similar, then set the tangent
 742                         // to the average of the two
 743                         bline.front().set_tangent((tangent+bline.front().get_tangent1())*0.5f);
 744                 }
 745
 746                 // Add the widths of the two points
 747                 {
 748                         Real tmp_width(bline.front().get_width()+width);
 749                         tmp_width=tmp_width<=1?tmp_width:1;
 750                         bline.front().set_width(tmp_width);
 751                 }
 752         }
 753
 754         // If the bline only has one blinepoint, then there is nothing to do.
 755         if(bline.size() < 2)
 756         {
 757                 // hide the 'stroke' line we were drawing, unless the user
 758                 // explicitly requests that they are kept
 759                 if (!getenv("SYNFIG_KEEP_ABORTED_DRAW_LINES"))
 760                         refresh_ducks();
 761
 762                 return Smach::RESULT_OK;
 763         }
 764
 765         if(region_flag)
 766                 return new_region(bline,radius);
 767
 768         return new_bline(bline,loop_bline_flag,radius);
 769 }
 770
 771 Smach::event_result
 772 StateDraw_Context::new_bline(std::list<synfig::BLinePoint> bline,bool loop_bline_flag,float radius)
 773 {
 774         synfigapp::SelectionManager::LayerList layer_list = get_canvas_view()->get_selection_manager()->get_selected_layers();
 775
 776         // Create the action group
 777         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("Sketch BLine"));
 778
 779         bool shift_origin = false;
 780         Vector shift_origin_vector;
 781         bool join_start_no_extend=false,join_finish_no_extend=false;
 782         synfigapp::ValueDesc start_duck_value_desc,finish_duck_value_desc;
 783         bool extend_start=false,extend_finish=false,complete_loop=false;
 784         bool extend_start_join_same=false,extend_start_join_different=false;
 785         bool extend_finish_join_same=false,extend_finish_join_different=false;
 786         int start_duck_index = 0,finish_duck_index = 0; // initialized to keep the compiler happy; shouldn't be needed though
 787         ValueNode_BLine::Handle start_duck_value_node_bline=NULL,finish_duck_value_node_bline=NULL;
 788
 789         // Find any ducks at the start or end that we might attach to
 790         // (this used to only run if we didn't just draw a loop - ie. !loop_bline_flag
 791         // but having loops auto-connect can be useful as well)
 792         if(get_auto_extend_flag() || get_auto_link_flag())
 793         {
 794                 etl::handle<Duck> start_duck(get_work_area()->find_duck(bline.front().get_vertex(),radius,Duck::TYPE_VERTEX));
 795                 etl::handle<Duck> finish_duck(get_work_area()->find_duck(bline.back().get_vertex(),radius,Duck::TYPE_VERTEX));
 796
 797                 // check whether the start of the new line extends an
 798                 // existing line.  this is only the case if the new
 799                 // line isn't a self-contained loop, and if the new
 800                 // line starts at one of the ends of an existing line
 801                 if(start_duck)do
 802                 {
 803                         if(!(start_duck_value_desc=start_duck->get_value_desc()))break;
 804                         if(loop_bline_flag)break; // loops don't extend anything
 805                         if(!start_duck_value_desc.parent_is_value_node())break;
 806                         start_duck_index=start_duck_value_desc.get_index(); // which point on the line did we start drawing at
 807                         start_duck_value_node_bline=ValueNode_BLine::Handle::cast_dynamic(start_duck_value_desc.get_parent_value_node());
 808                         if(!get_auto_extend_flag())break;
 809
 810                         // don't extend looped blines
 811                         if(start_duck_value_node_bline&&!start_duck_value_node_bline->get_loop()&&
 812                            // did we start drawing at either end of the line?
 813                            (start_duck_index==0||start_duck_index==start_duck_value_node_bline->link_count()-1))
 814                         {
 815                                 extend_start=true;
 816                                 shift_origin=true;
 817                                 shift_origin_vector=start_duck->get_origin();
 818                         }
 819                 }while(0);
 820
 821                 // check whether the end of the new line extends an
 822                 // existing line.  this is only the case if the new
 823                 // line isn't a self-contained loop, and if the new
 824                 // line ends at one of the ends of an existing line
 825                 if(finish_duck)do
 826                 {
 827                         if(!(finish_duck_value_desc=finish_duck->get_value_desc()))break;
 828                         if(loop_bline_flag)break;
 829                         if(!finish_duck_value_desc.parent_is_value_node())break;
 830                         finish_duck_index=finish_duck_value_desc.get_index();
 831                         finish_duck_value_node_bline=ValueNode_BLine::Handle::cast_dynamic(finish_duck_value_desc.get_parent_value_node());
 832                         if(!get_auto_extend_flag())break;
 833
 834                         // don't extend looped blines
 835                         if(finish_duck_value_node_bline&&!finish_duck_value_node_bline->get_loop()&&
 836                            (finish_duck_index==0||finish_duck_index==finish_duck_value_node_bline->link_count()-1))
 837                         {
 838                                 if(extend_start)
 839                                 {
 840                                         // we've started and finished drawing at the end of a bline.  we can't
 841                                         // extend both blines, so unless we started and finished at the 2 ends
 842                                         // of the same bline, only extend the one we started on
 843                                         if(start_duck_value_node_bline==finish_duck_value_node_bline)
 844                                                 complete_loop=extend_finish=true;
 845                                 }else{
 846                                         extend_finish=true;
 847                                         shift_origin=true;
 848                                         shift_origin_vector=finish_duck->get_origin();
 849                                 }
 850                         }
 851                 }while(0);
 852
 853                 // if the new line's start didn't extend an existing line,
 854                 // check whether it needs to be linked to an existing duck
 855                 if(!extend_start&&get_auto_link_flag()&&start_duck&&start_duck_value_desc)
 856                         switch(start_duck_value_desc.get_value_type())
 857                         {
 858                         case synfig::ValueBase::TYPE_BLINEPOINT:
 859                                 start_duck_value_desc=synfigapp::ValueDesc(LinkableValueNode::Handle::cast_dynamic(start_duck_value_desc.get_value_node()),0);
 860                                 // fall through
 861                         case synfig::ValueBase::TYPE_VECTOR:
 862                                 if (shift_origin && shift_origin_vector != start_duck->get_origin())
 863                                         break;
 864                                 shift_origin = true;
 865                                 shift_origin_vector = start_duck->get_origin();
 866                                 get_canvas_interface()->auto_export(start_duck_value_desc);
 867                                 if (extend_finish)
 868                                         if(start_duck_value_node_bline&&start_duck_value_node_bline==finish_duck_value_node_bline)
 869                                                 extend_finish_join_same=true;
 870                                         else
 871                                                 extend_finish_join_different=true;
 872                                 else
 873                                         join_start_no_extend=true;
 874                                 // fall through
 875                         default:break;
 876                         }
 877
 878                 // if the new line's end didn't extend an existing line,
 879                 // check whether it needs to be linked to an existing duck
 880                 if(!extend_finish&&get_auto_link_flag()&&finish_duck&&finish_duck_value_desc)
 881                         switch(finish_duck_value_desc.get_value_type())
 882                         {
 883                         case synfig::ValueBase::TYPE_BLINEPOINT:
 884                                 finish_duck_value_desc=synfigapp::ValueDesc(LinkableValueNode::Handle::cast_dynamic(finish_duck_value_desc.get_value_node()),0);
 885                                 // fall through
 886                         case synfig::ValueBase::TYPE_VECTOR:
 887                                 if (shift_origin && shift_origin_vector != finish_duck->get_origin())
 888                                         break;
 889                                 shift_origin = true;
 890                                 shift_origin_vector = finish_duck->get_origin();
 891                                 get_canvas_interface()->auto_export(finish_duck_value_desc);
 892                                 if(extend_start)
 893                                         if(finish_duck_value_node_bline&&start_duck_value_node_bline==finish_duck_value_node_bline)
 894                                                 extend_start_join_same=true;
 895                                         else
 896                                                 extend_start_join_different=true;
 897                                 else
 898                                         join_finish_no_extend=true;
 899                                 // fall through
 900                         default:break;
 901                         }
 902         }
 903
 904         ValueNode_BLine::Handle value_node;
 905         std::list<synfig::BLinePoint> trans_bline;
 906
 907         {
 908                 std::list<synfig::BLinePoint>::iterator iter;
 909                 const synfig::TransformStack& transform(get_canvas_view()->get_curr_transform_stack());
 910
 911                 for(iter=bline.begin();iter!=bline.end();++iter)
 912                 {
 913                         BLinePoint bline_point(*iter);
 914                         Point new_vertex(transform.unperform(bline_point.get_vertex()));
 915
 916                         bline_point.set_tangent1(
 917                                 transform.unperform(
 918                                         bline_point.get_tangent1()+bline_point.get_vertex()
 919                                 ) -new_vertex
 920                         );
 921
 922                         bline_point.set_tangent2(
 923                                 transform.unperform(
 924                                         bline_point.get_tangent2()+bline_point.get_vertex()
 925                                 ) -new_vertex
 926                         );
 927
 928                         if (shift_origin)
 929                                 new_vertex=new_vertex-shift_origin_vector;
 930
 931                         bline_point.set_vertex(new_vertex);
 932
 933                         trans_bline.push_back(bline_point);
 934                 }
 935                 value_node=ValueNode_BLine::create(synfig::ValueBase(trans_bline,loop_bline_flag));
 936
 937                 Canvas::Handle canvas(get_canvas_view()->get_canvas());
 938                 Layer::Handle layer(get_canvas_view()->get_selection_manager()->get_selected_layer());
 939                 if (layer) canvas=layer->get_canvas();
 940                 value_node->set_member_canvas(canvas);
 941         }
 942
 943         Smach::event_result result;
 944         synfig::ValueNode_DynamicList::ListEntry source;
 945
 946         // the new line's start extends an existing line
 947         if(extend_start)
 948         {
 949                 int target_offset = 0;
 950                 if(complete_loop)trans_bline.pop_back();
 951                 trans_bline.pop_front();
 952                 if(start_duck_index==0)
 953                 {       // We need to reverse the BLine first.
 954                         reverse_bline(trans_bline);
 955                         result=extend_bline_from_begin(start_duck_value_node_bline,trans_bline,complete_loop);
 956                         source=start_duck_value_node_bline->list.front();
 957                         target_offset=trans_bline.size();
 958                 }
 959                 else
 960                 {
 961                         result=extend_bline_from_end(start_duck_value_node_bline,trans_bline,complete_loop);
 962                         source=start_duck_value_node_bline->list.back();
 963                 }
 964
 965                 if(extend_start_join_different)
 966                         LinkableValueNode::Handle::cast_dynamic(source.value_node)->
 967                                 set_link("point",finish_duck_value_desc.get_value_node());
 968                 else if(extend_start_join_same)
 969                         LinkableValueNode::Handle::cast_dynamic(source.value_node)->
 970                                 set_link("point",synfigapp::ValueDesc(LinkableValueNode::Handle::cast_dynamic(start_duck_value_node_bline->
 971                                                                                                         list[target_offset+finish_duck_index].value_node),0).get_value_node());
 972                 return result;
 973         }
 974
 975         // the new line's end extends an existing line
 976         if(extend_finish)
 977         {
 978                 int target_offset = 0;
 979                 trans_bline.pop_back();
 980                 if(finish_duck_index==0)
 981                 {
 982                         result=extend_bline_from_begin(finish_duck_value_node_bline,trans_bline,false);
 983                         source=finish_duck_value_node_bline->list.front();
 984                         target_offset=trans_bline.size();
 985                 }
 986                 else
 987                 {       // We need to reverse the BLine first.
 988                         reverse_bline(trans_bline);
 989                         result=extend_bline_from_end(finish_duck_value_node_bline,trans_bline,false);
 990                         source=finish_duck_value_node_bline->list.back();
 991                 }
 992
 993                 if(extend_finish_join_different)
 994                         LinkableValueNode::Handle::cast_dynamic(source.value_node)->
 995                                 set_link("point",start_duck_value_desc.get_value_node());
 996                 else if(extend_finish_join_same)
 997                         LinkableValueNode::Handle::cast_dynamic(source.value_node)->
 998                                 set_link("point",synfigapp::ValueDesc(LinkableValueNode::Handle::cast_dynamic(finish_duck_value_node_bline->
 999                                                                                                         list[target_offset+start_duck_index].value_node),0).get_value_node());
1000                 return result;
1001         }
1002
1003         if (join_start_no_extend)
1004                 LinkableValueNode::Handle::cast_dynamic(value_node->list.front().value_node)->
1005                   set_link("point",start_duck_value_desc.get_value_node());
1006
1007         if (join_finish_no_extend)
1008                 LinkableValueNode::Handle::cast_dynamic(value_node->list.back().value_node)->
1009                   set_link("point",finish_duck_value_desc.get_value_node());
1010
1011         if(get_auto_export_flag())
1012                 if (!get_canvas_interface()->add_value_node(value_node,get_id()))
1013                 {
1014                         /* it's no big deal, is it?  let's keep the shape anyway */
1015                         // get_canvas_view()->get_ui_interface()->error(_("Unable to add value node"));
1016                         // group.cancel();
1017                         // increment_id();
1018                         // return Smach::RESULT_ERROR;
1019                 }
1020
1021         last_stroke=value_node;
1022         last_stroke_id=get_id();
1023
1024         {
1025                 // Create the layer(s)
1026                 Layer::Handle layer;
1027                 Canvas::Handle canvas(get_canvas_view()->get_canvas());
1028                 int depth(0);
1029
1030                 // we are temporarily using the layer to hold something
1031                 layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
1032                 if(layer)
1033                 {
1034                         depth=layer->get_depth();
1035                         canvas=layer->get_canvas();
1036                 }
1037
1038                 // fill_last_stroke() will take care of clearing the selection if we're calling it
1039                 if(get_outline_flag() && get_region_flag())
1040                 {
1041                         if (fill_last_stroke_and_unselect_other_layers() == Smach::RESULT_ERROR)
1042                         {
1043                                 get_canvas_view()->get_selection_manager()->set_selected_layers(layer_list);
1044                                 get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
1045                                 group.cancel();
1046                                 return Smach::RESULT_ERROR;
1047                         }
1048                 }
1049                 else
1050                         get_canvas_interface()->get_selection_manager()->clear_selected_layers();
1051
1052                 //int number(synfig::UniqueID().get_uid());
1053
1054                 synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
1055
1056                 // if they're both defined, we'll add the region later
1057                 if(get_outline_flag())
1058                 {
1059                         layer=get_canvas_interface()->add_layer_to("outline",canvas,depth);
1060                         if (!layer)
1061                         {
1062                                 get_canvas_view()->get_selection_manager()->set_selected_layers(layer_list);
1063                                 get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
1064                                 group.cancel();
1065                                 return Smach::RESULT_ERROR;
1066                         }
1067                         layer->set_description(get_id()+_(" Outline"));
1068                 }
1069                 else
1070                 {
1071                         layer=get_canvas_interface()->add_layer_to("region",canvas,depth);
1072                         if (!layer)
1073                         {
1074                                 get_canvas_view()->get_selection_manager()->set_selected_layers(layer_list);
1075                                 get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
1076                                 group.cancel();
1077                                 return Smach::RESULT_ERROR;
1078                         }
1079                         layer->set_description(get_id()+_(" Region"));
1080                 }
1081
1082                 if(get_feather())
1083                 {
1084                         layer->set_param("feather",get_feather());
1085                         get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
1086                 }
1087                 assert(layer);
1088                 //layer->set_description(strprintf("Stroke %d",number));
1089                 //get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
1090
1091                 if (shift_origin)
1092                         get_canvas_interface()->
1093                           change_value(synfigapp::ValueDesc(layer,"origin"),shift_origin_vector);
1094
1095                 synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
1096
1097                 assert(action);
1098
1099                 action->set_param("canvas",get_canvas());
1100                 action->set_param("canvas_interface",get_canvas_interface());
1101                 action->set_param("layer",layer);
1102                 if(!action->set_param("param",String("bline")))
1103                         synfig::error("LayerParamConnect didn't like \"param\"");
1104                 if(!action->set_param("value_node",ValueNode::Handle(value_node)))
1105                         synfig::error("LayerParamConnect didn't like \"value_node\"");
1106
1107                 if(!get_canvas_interface()->get_instance()->perform_action(action))
1108                 {
1109                         get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
1110                         group.cancel();
1111                         increment_id();
1112                         //refresh_ducks();
1113                         return Smach::RESULT_ERROR;
1114                 }
1115                 layer_list.push_back(layer);
1116                 get_canvas_view()->get_selection_manager()->set_selected_layers(layer_list);
1117                 //refresh_ducks();
1118         }
1119
1120         increment_id();
1121         return Smach::RESULT_ACCEPT;
1122 }
1123
1124 #ifdef _DEBUG
1125 static void
1126 debug_show_vertex_list(int iteration, std::list<synfigapp::ValueDesc>& vertex_list,
1127                                            std::string title, int current)
1128 {
1129         std::list<synfigapp::ValueDesc>::iterator i = vertex_list.begin();
1130         printf("\n%s\n  ----- iter %d : ", title.c_str(), iteration);
1131         int c = 0;
1132         synfig::LinkableValueNode::Handle last = 0;
1133         int start = -1;
1134         int index;
1135         int prev;
1136         int dir = 0;
1137         bool started = false;
1138         for(;i!=vertex_list.end();i++,c++)
1139         {
1140                 synfigapp::ValueDesc value_desc(*i);
1141
1142                 if (value_desc.parent_is_value_node()) {
1143                         if(value_desc.parent_is_linkable_value_node())
1144                         {
1145                                 index = value_desc.get_index();
1146                                 // printf("<%d>", index);
1147                                 if (last == synfig::LinkableValueNode::Handle::cast_reinterpret(value_desc.get_parent_value_node()))
1148                                 {
1149                                         // printf("\n%s:%d\n", __FILE__, __LINE__);
1150                                         if (start != -1)
1151                                         {
1152                                                 // printf("\n%s:%d\n", __FILE__, __LINE__);
1153                                                 if (c == current)
1154                                                 {
1155                                                         // printf("\n%s:%d\n", __FILE__, __LINE__);
1156                                                         if (dir)
1157                                                         {
1158                                                                 if (started) printf(", "); else started = true;
1159                                                                 printf("%d--%d", start, prev);
1160                                                         }
1161                                                         else
1162                                                         {
1163                                                                 if (started) printf(", "); else started = true;
1164                                                                 printf("%d", start);
1165                                                         }
1166                                                         printf(", *%d*", index);
1167                                                         start = -1;
1168                                                 }
1169                                                 else if (dir == 0)
1170                                                 {
1171                                                         // printf("\n%s:%d\n", __FILE__, __LINE__);
1172                                                         if (index == start + 1)
1173                                                         {
1174                                                                 // printf("\n%s:%d\n", __FILE__, __LINE__);
1175                                                                 dir = 1;
1176                                                                 prev = index;
1177                                                         }
1178                                                         else if (index == start - 1)
1179                                                         {
1180                                                                 // printf("\n%s:%d\n", __FILE__, __LINE__);
1181                                                                 dir = -1;
1182                                                                 prev = index;
1183                                                         }
1184                                                         else
1185                                                         {
1186                                                                 if (started) printf(", "); else started = true;
1187                                                                 printf("%d", start);
1188                                                                 start = index;
1189                                                         }
1190                                                 }
1191                                                 else if (index == prev + dir)
1192                                                 {
1193                                                         // printf("\n%s:%d\n", __FILE__, __LINE__);
1194                                                         prev = index;
1195                                                 }
1196                                                 else
1197                                                 {
1198                                                         // printf("\n%s:%d\n", __FILE__, __LINE__);
1199                                                         if (started) printf(", "); else started = true;
1200                                                         if (prev != start)
1201                                                                 printf("%d--%d", start, prev);
1202                                                         else
1203                                                                 printf("%d", start);
1204                                                         // printf("\n%s:%d\n", __FILE__, __LINE__);
1205                                                         start = index;
1206                                                         dir = 0;
1207                                                 }
1208                                         }
1209                                         else
1210                                         {
1211                                                 // printf("\n%s:%d\n", __FILE__, __LINE__);
1212                                                 if (c == current)
1213                                                 {
1214                                                         if (started) printf(", "); else started = true;
1215                                                         printf("*%d*", index);
1216                                                 }
1217                                                 else
1218                                                 {
1219                                                         // printf("\n%s:%d\n", __FILE__, __LINE__);
1220                                                         start = index;
1221                                                         dir = 0;
1222                                                 }
1223                                         }
1224                                 }
1225                                 else
1226                                 {
1227                                         // printf("\n%s:%d\n", __FILE__, __LINE__);
1228                                         if (last)
1229                                         {
1230                                                 // printf("\n%s:%d\n", __FILE__, __LINE__);
1231                                                 if (start != -1)
1232                                                 {
1233                                                         if (started) printf(", "); else started = true;
1234                                                         if (dir != 0)
1235                                                                 printf("%d--%d", start, prev);
1236                                                         else
1237                                                                 printf("%d", start);
1238                                                 }
1239                                                 // printf("\n%s:%d\n", __FILE__, __LINE__);
1240                                                 printf(") ");
1241                                         }
1242                                         // printf("\n%s:%d\n", __FILE__, __LINE__);
1243                                         last = synfig::LinkableValueNode::Handle::cast_reinterpret(value_desc.get_parent_value_node());
1244                                         printf("%d:(", synfig::LinkableValueNode::Handle::cast_reinterpret(value_desc.get_parent_value_node())->link_count());
1245                                         started = false;
1246                                         // printf("\n%s:%d\n", __FILE__, __LINE__);
1247                                         if (c == current)
1248                                         {
1249                                                 start = -1;
1250                                                 printf("*%d*", index);
1251                                         }
1252                                         else
1253                                         {
1254                                                 // printf("\n%s:%d\n", __FILE__, __LINE__);
1255                                                 start = index;
1256                                                 dir = 0;
1257                                         }
1258                                         // printf("\n%s:%d\n", __FILE__, __LINE__);
1259                                 }
1260                                 // printf("\n%s:%d\n", __FILE__, __LINE__);
1261                         }
1262                         else if (last)
1263                                 if (last) printf("?!) ");
1264                 }
1265                 else
1266                 {
1267                         last = 0;
1268                         printf("? ");
1269                 }
1270         }
1271         if (last)
1272         {
1273                 if (started) printf(", "); else started = true;
1274                 if (start != -1)
1275                 {
1276                         if (dir != 0)
1277                                 printf("%d--%d", start, prev);
1278                         else
1279                                 printf("%d", start);
1280                 }
1281                 printf(")");
1282         }
1283         printf("\n");
1284 }
1285 #else  // _DEBUG
1286 #define debug_show_vertex_list(a,b,c,d)
1287 #endif  // _DEBUG
1288
1289 Smach::event_result
1290 StateDraw_Context::new_region(std::list<synfig::BLinePoint> bline, synfig::Real radius)
1291 {
1292         // Create the action group
1293         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("Define Region"));
1294
1295         std::list<synfigapp::ValueDesc> vertex_list;
1296
1297         printf("new_region with %zd bline points\n", bline.size());
1298
1299         // First we need to come up with a rough list of
1300         // BLinePoints that we are going to be using to
1301         // define our region.
1302         {
1303                 std::list<synfig::BLinePoint>::iterator iter;
1304                 for(iter=bline.begin();iter!=bline.end();++iter)
1305                 {
1306                         etl::handle<Duck> duck(get_work_area()->find_duck(iter->get_vertex(),0,Duck::TYPE_VERTEX));
1307
1308                         if(!duck)
1309                         {
1310                                 synfig::info(__FILE__":%d: Nothing to enclose!",__LINE__);
1311                                 return Smach::RESULT_OK;
1312                         }
1313
1314                         assert(duck->get_type()==Duck::TYPE_VERTEX);
1315
1316                         synfigapp::ValueDesc value_desc(duck->get_value_desc());
1317
1318                         if(!value_desc)
1319                         {
1320                                 synfig::info(__FILE__":%d: Got a hit, but no ValueDesc on this duck",__LINE__);
1321                                 continue;
1322                         }
1323
1324                         switch(value_desc.get_value_type())
1325                         {
1326                         case synfig::ValueBase::TYPE_BLINEPOINT:
1327                                 //if(vertex_list.empty() || value_desc!=vertex_list.back())
1328                                 vertex_list.push_back(value_desc);
1329                                 assert(vertex_list.back().is_valid());
1330
1331                                 break;
1332                         default:
1333                                 break;
1334                         }
1335                 }
1336         }
1337
1338         assert(vertex_list.back().is_valid());
1339
1340         printf("vertex list with %zd bline points\n", vertex_list.size());
1341
1342         // Remove any duplicates
1343         {
1344         }
1345
1346         ValueNode_BLine::Handle value_node_bline;
1347
1348         // Now we need to test for the trivial case,
1349         // which is where all of the vertices
1350         // come from one BLine.
1351         if(vertex_list.front().parent_is_linkable_value_node())
1352         {
1353                 bool trivial_case(true);
1354                 ValueNode::Handle trivial_case_value_node;
1355
1356                 trivial_case_value_node=vertex_list.front().get_parent_value_node();
1357
1358                 std::list<synfigapp::ValueDesc>::iterator iter;
1359                 for(iter=vertex_list.begin();iter!=vertex_list.end();++iter)
1360                 {
1361                         if(trivial_case_value_node!=iter->get_parent_value_node())
1362                         {
1363                                 trivial_case=false;
1364                                 break;
1365                         }
1366                 }
1367
1368                 // \todo - re-enable this code
1369                 if(trivial_case && false)
1370                 {
1371                         synfig::info("all points are on the same bline, so just fill that line");
1372                         value_node_bline=ValueNode_BLine::Handle::cast_dynamic(trivial_case_value_node);
1373
1374                         synfig::info("the line has %d vertices", value_node_bline->link_count());
1375
1376                         if(value_node_bline->link_count() <= 2)
1377                         {
1378                                 synfig::info(__FILE__":%d: Vertex list too small to make region.",__LINE__);
1379                                 return Smach::RESULT_OK;
1380                         }
1381                 }
1382         }
1383
1384         if(!value_node_bline)
1385                 if(vertex_list.size()<=2)
1386                 {
1387                         synfig::info(__FILE__":%d: Vertex list too small to make region.",__LINE__);
1388                         return Smach::RESULT_OK;
1389                 }
1390
1391         // Now we need to clean the list of vertices up
1392         // a bit. This includes inserting missing vertices
1393         // and removing extraneous ones.
1394         // We can do this in multiple passes.
1395         if(!value_node_bline)
1396         {
1397                 debug_show_vertex_list(0, vertex_list, "before shifting stuff", -1);
1398                 // rearrange the list so that the first and last node are on different blines
1399                 std::list<synfigapp::ValueDesc>::iterator iter, start;
1400                 ValueNode::Handle last_value_node = vertex_list.back().get_parent_value_node();
1401                 for(iter = vertex_list.begin(); iter!=vertex_list.end(); iter++)
1402                         if (iter->get_parent_value_node() != last_value_node)
1403                         {
1404                                 vertex_list.insert(vertex_list.end(), vertex_list.begin(), iter);
1405                                 vertex_list.erase(vertex_list.begin(), iter);
1406                                 break;
1407                         }
1408
1409                 debug_show_vertex_list(0, vertex_list, "before detecting direction and limits", -1);
1410                 // rearrange the list so that the first and last node are on different blines
1411                 iter = vertex_list.begin();
1412                 while (iter!=vertex_list.end())
1413                 {
1414                         // make a note of which bline we're looking at
1415                         ValueNode::Handle parent_value_node = iter->get_parent_value_node();
1416                         start = iter;
1417                         int points_in_line = synfig::LinkableValueNode::Handle::cast_reinterpret(parent_value_node)->link_count();
1418                         bool looped = (*parent_value_node)(get_time()).get_loop();
1419                         int this_index, last_index = iter->get_index();
1420                         int min_index = last_index, max_index = last_index;
1421                         bool whole;
1422                         int direction = 0;
1423
1424                         // printf("there are %d points in this line - first is index %d\n", points_in_line, last_index);
1425
1426                         // while we're looking at the same bline, keep going
1427                         iter++;
1428                         while (iter != vertex_list.end() && iter->get_parent_value_node() == parent_value_node)
1429                         {
1430                                 this_index = iter->get_index();
1431                                 // printf("index went from %d to %d\n", last_index, this_index);
1432                                 if (looped)
1433                                 {
1434                                         if (this_index - last_index > points_in_line/2)
1435                                                 while (this_index - last_index > points_in_line/2)
1436                                                         this_index -= points_in_line;
1437                                         else if (last_index - this_index > points_in_line/2)
1438                                                 while (last_index - this_index > points_in_line/2)
1439                                                         this_index += points_in_line;
1440                                 }
1441
1442                                 if (this_index < min_index) min_index = this_index;
1443                                 if (this_index > max_index) max_index = this_index;
1444
1445                                 // printf("so let's imagine index went from %d to %d\n", last_index, this_index);
1446                                 if (this_index > last_index)
1447                                         direction++;
1448                                 else if (this_index < last_index)
1449                                         direction--;
1450
1451                                 last_index = this_index;
1452                                 iter++;
1453                         }
1454
1455                         // printf("min %d and max %d\n", min_index, max_index);
1456                         whole = max_index - min_index >= points_in_line;
1457                         min_index = (min_index % points_in_line + points_in_line) % points_in_line;
1458                         max_index = (max_index % points_in_line + points_in_line) % points_in_line;
1459                         // they drew around a shape more than once - what's the start/end point?  does it matter?
1460                         if (whole) min_index = max_index = (min_index + max_index) / 2;
1461                         // printf("processed min %d max %d whole %d\n", min_index, max_index, whole);
1462
1463                         if (direction < 0)
1464                         {
1465                                 if (whole)
1466                                 {
1467                                         // printf("whole (down) (%d) ", min_index);
1468                                         for (int i = min_index; i >= 0; i--)
1469                                         {
1470                                                 // printf("%d ", i);
1471                                                 vertex_list.insert(start, synfigapp::ValueDesc(parent_value_node, i));
1472                                         }
1473                                         for (int i = points_in_line - 1; i >= min_index; i--)
1474                                         {
1475                                                 // printf("%d ", i);
1476                                                 vertex_list.insert(start, synfigapp::ValueDesc(parent_value_node, i));
1477                                         }
1478                                 }
1479                                 else
1480                                 {
1481                                         // printf("part (down) (%d -> %d) ", max_index, min_index);
1482                                         for (int i = max_index; i != min_index; i--)
1483                                         {
1484                                                 if (i == -1) i = points_in_line - 1;
1485                                                 // printf("%d ", i);
1486                                                 vertex_list.insert(start, synfigapp::ValueDesc(parent_value_node, i));
1487                                         }
1488                                         vertex_list.insert(start, synfigapp::ValueDesc(parent_value_node, min_index));
1489                                 }
1490                         }
1491                         else
1492                         {
1493                                 if (whole)
1494                                 {
1495                                         // printf("whole (%d) ", min_index);
1496                                         for (int i = min_index; i < points_in_line; i++)
1497                                         {
1498                                                 // printf("%d ", i);
1499                                                 vertex_list.insert(start, synfigapp::ValueDesc(parent_value_node, i));
1500                                         }
1501                                         for (int i = 0; i <= min_index; i++)
1502                                         {
1503                                                 // printf("%d ", i);
1504                                                 vertex_list.insert(start, synfigapp::ValueDesc(parent_value_node, i));
1505                                         }
1506                                 }
1507                                 else
1508                                 {
1509                                         // printf("part (%d -> %d) ", min_index, max_index);
1510                                         for (int i = min_index; i != max_index; i++)
1511                                         {
1512                                                 if (i == points_in_line) i = 0;
1513                                                 // printf("%d ", i);
1514                                                 vertex_list.insert(start, synfigapp::ValueDesc(parent_value_node, i));
1515                                         }
1516                                         vertex_list.insert(start, synfigapp::ValueDesc(parent_value_node, max_index));
1517                                 }
1518                         }
1519                         // printf("\n");
1520                         // debug_show_vertex_list(0, vertex_list, "after insert", -1);
1521                         vertex_list.erase(start, iter);
1522                         // debug_show_vertex_list(0, vertex_list, "after delete", -1);
1523                 }
1524
1525                 debug_show_vertex_list(0, vertex_list, "continuous vertices", -1);
1526
1527                 // \todo reenable or delete this section
1528                 int i=100;
1529                 for(bool done=false;!done && i<30;i++)
1530                 {
1531                         debug_show_vertex_list(i, vertex_list, "in big loop", -1);
1532
1533                         // Set done to "true" for now. If
1534                         // any updates are performed, we will
1535                         // change it back to false.
1536                         done=true;
1537
1538                         std::list<synfigapp::ValueDesc>::iterator prev,next;
1539                         prev=vertex_list.end();prev--;  // Set prev to the last ValueDesc
1540                         next=vertex_list.begin();
1541                         iter=next++; // Set iter to the first value desc, and next to the second
1542
1543                         int current = 0;
1544                         for(;iter!=vertex_list.end();prev=iter,iter++,next++,current++)
1545                         {
1546                                 // we need to be able to erase(next) and can't do that if next is end()
1547                                 if (next == vertex_list.end()) next = vertex_list.begin();
1548                                 debug_show_vertex_list(i, vertex_list, "in loop around vertices", current);
1549                                 synfigapp::ValueDesc value_prev(*prev);
1550                                 synfigapp::ValueDesc value_desc(*iter);
1551                                 synfigapp::ValueDesc value_next(*next);
1552
1553                                 assert(value_desc.is_valid());
1554                                 assert(value_next.is_valid());
1555                                 assert(value_prev.is_valid());
1556
1557                                 // synfig::info("-------");
1558                                 // synfig::info(__FILE__":%d: value_prev 0x%08X:%d",__LINE__,value_prev.get_parent_value_node().get(),value_prev.get_index());
1559                                 // synfig::info(__FILE__":%d: value_desc 0x%08X:%d",__LINE__,value_desc.get_parent_value_node().get(),value_desc.get_index());
1560                                 // synfig::info(__FILE__":%d: value_next 0x%08X:%d",__LINE__,value_next.get_parent_value_node().get(),value_next.get_index());
1561
1562                                 /*
1563                                   if(value_prev.parent_is_value_node() && value_desc.parent_is_value_node() && value_next.parent_is_value_node())
1564                                   {
1565                                   // Remove random extraneous vertices
1566                                   if(value_prev.get_parent_value_node()==value_next.get_parent_value_node() &&
1567                                   value_prev.get_parent_value_node()!=value_desc.get_parent_value_node())
1568                                   {
1569                                   vertex_list.erase(iter);
1570                                   done=false;
1571                                   break;
1572                                   }
1573                                   }
1574                                 */
1575
1576                                 // // Remove duplicate vertices
1577
1578                                 // // if previous is the same as current or
1579                                 // //    current is the same as next, remove current
1580                                 // if(value_prev.get_value_node()==value_desc.get_value_node() ||
1581                                 //    value_desc.get_value_node()==value_next.get_value_node())
1582                                 // {
1583                                 //      vertex_list.erase(iter);
1584                                 //      done=false;
1585                                 //      printf("erased node - i = %d\n", i);
1586                                 //      break;
1587                                 // }
1588
1589                                 // // if previous is the same as next, remove previous?  or next?
1590                                 // if(value_prev.get_value_node()==value_next.get_value_node())
1591                                 // {
1592                                 //      vertex_list.erase(next);
1593                                 //      // vertex_list.erase(prev);
1594                                 //      done=false;
1595                                 //      printf("erased node - i = %d\n", i);
1596                                 //      break;
1597                                 // }
1598
1599                                 // if 'this' and 'next' both have parents
1600                                 if (value_desc.parent_is_value_node() && value_next.parent_is_value_node())
1601                                 {
1602                                         // if they are both on the same bline - this has been handled by new code above
1603                                         if (value_desc.get_parent_value_node() == value_next.get_parent_value_node())
1604                                         {
1605                                                 // // if (next != vertex_list.end())
1606                                                 // {
1607                                                 //      printf("parent loop is %d and node loop is ??\n",
1608                                                 //                 (*(value_desc.get_parent_value_node()))(get_time()).get_loop()
1609                                                 //                 // value_desc.get_value_node().get_loop(),
1610                                                 //              );
1611                                                 //
1612                                                 //      // Fill in missing vertices
1613                                                 //      // \todo take loops into account: seeing (15, 2, 3, 4) probably means that (0, 1) is missing, not 14 through 3
1614                                                 //      if(value_desc.get_index()<value_next.get_index()-1)
1615                                                 //      {
1616                                                 //              debug_show_vertex_list(i, vertex_list,
1617                                                 //                                                         strprintf("same parent, different points this %d < next-1 %d",
1618                                                 //                                                                               value_desc.get_index(), ((value_next.get_index()-1))),
1619                                                 //                                                         current);
1620                                                 //              for (int index = value_desc.get_index()+1; index < value_next.get_index(); index++)
1621                                                 //              {
1622                                                 //                      printf("inserting up %d\n", index);
1623                                                 //                      vertex_list.insert(next, synfigapp::ValueDesc(value_desc.get_parent_value_node(), index));
1624                                                 //              }
1625                                                 //              debug_show_vertex_list(i, vertex_list, "new list", current);
1626                                                 //              done=false;
1627                                                 //              break;
1628                                                 //      }
1629                                                 //      if(value_next.get_index()<value_desc.get_index()-1)
1630                                                 //      {
1631                                                 //              debug_show_vertex_list(i, vertex_list,
1632                                                 //                                                         strprintf("same parent, different points next %d < this-1 %d",
1633                                                 //                                                                               value_next.get_index(), ((value_desc.get_index()-1))),
1634                                                 //                                                         current);
1635                                                 //              for (int index = value_desc.get_index()-1; index > value_next.get_index(); index--)
1636                                                 //              {
1637                                                 //                      printf("inserting down %d\n", index);
1638                                                 //                      vertex_list.insert(next, synfigapp::ValueDesc(value_desc.get_parent_value_node(), index));
1639                                                 //              }
1640                                                 //              debug_show_vertex_list(i, vertex_list, "new list", current);
1641                                                 //              done=false;
1642                                                 //              break;
1643                                                 //      }
1644                                                 // }
1645                                         }
1646                                         // 'this' and 'next' have different parents
1647                                         else
1648                                         {
1649                                                 ValueNode::Handle v1 = value_desc.get_value_node();
1650                                                 ValueNode::Handle v2 = value_desc.get_parent_value_node();
1651                                                 if (v1 == v2)
1652                                                         printf("same\n");
1653                                                 else
1654                                                         printf("different\n");
1655
1656                                                 if (value_desc.get_value_node() != value_next.get_value_node())
1657                                                 {
1658                                                         // Ensure that connections between blines are properly connected
1659                                                         BLinePoint vertex(value_desc.get_value(get_time()).get(BLinePoint()));
1660                                                         BLinePoint vertex_next(value_next.get_value(get_time()).get(BLinePoint()));
1661
1662                                                         //synfig::info("--------");
1663                                                         //synfig::info(__FILE__":%d: vertex: [%f, %f]",__LINE__,vertex.get_vertex()[0],vertex.get_vertex()[1]);
1664                                                         //synfig::info(__FILE__":%d: vertex_next: [%f, %f]",__LINE__,vertex_next.get_vertex()[0],vertex_next.get_vertex()[1]);
1665
1666                                                         // if this vertex is close to the next one, replace this vertex with a new one
1667                                                         // and erase the next one
1668                                                         printf("this point is %5.2f from the next point - compare with %5.2f\n",
1669                                                                    (vertex.get_vertex()-vertex_next.get_vertex()).mag_squared(),
1670                                                                    radius*radius);
1671                                                         if((vertex.get_vertex()-vertex_next.get_vertex()).mag_squared()<radius*radius)
1672                                                         {
1673                                                                 printf("in one - it's close\n");
1674                                                                 ValueNode_Composite::Handle value_node;
1675                                                                 ValueNode_Composite::Handle value_node_next;
1676                                                                 value_node=ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node().clone());
1677                                                                 value_node_next=ValueNode_Composite::Handle::cast_dynamic(value_next.get_value_node().clone());
1678                                                                 if(!value_node || !value_node_next)
1679                                                                 {
1680                                                                         synfig::info(__FILE__":%d: Unable to properly connect blines.",__LINE__);
1681                                                                         continue;
1682                                                                 }
1683                                                                 // \todo if next isn't split, don't we want to copy its 'Tangent 1' instead?
1684                                                                 value_node->set_link("t2",value_node_next->get_link("t2"));
1685                                                                 value_node->set_link("split",ValueNode_Const::create(true));
1686
1687                                                                 // get_canvas_interface()->auto_export(value_node);
1688                                                                 printf("exporting\n");
1689                                                                 get_canvas_interface()->add_value_node(value_node,value_node->get_id() + strprintf("foo %d", rand()));
1690
1691                                                                 assert(value_node->is_exported());
1692                                                                 // replace 'this' with the new valuenode
1693                                                                 *iter=synfigapp::ValueDesc(get_canvas(),value_node->get_id());
1694                                                                 printf("erasing next\n");
1695                                                                 printf("erasing next point\n");
1696                                                                 vertex_list.erase(next);
1697                                                                 done=false;
1698                                                                 break;
1699                                                         } // this vertex isn't close to the next one
1700                                                         else if (value_prev.parent_is_value_node())
1701                                                         {
1702                                                                 printf("in two - it's far\n");
1703                                                                 // \todo this only makes sense if prev is on the same bline
1704                                                                 printf("this is index %d\n", value_desc.get_index());
1705                                                                 printf("prev is index %d\n", value_prev.get_index());
1706                                                                 bool positive_trend(value_desc.get_index()>value_prev.get_index());
1707
1708                                                                 if(positive_trend)
1709                                                                 {
1710                                                                         printf("positive trend\n");
1711                                                                         printf("comparing index %d < link_count()-1 = %d-1 = %d\n",
1712                                                                                    value_desc.get_index(),
1713                                                                                    LinkableValueNode::Handle::cast_static(value_desc.get_parent_value_node())->link_count(),
1714                                                                                    LinkableValueNode::Handle::cast_static(value_desc.get_parent_value_node())->link_count()-1);
1715                                                                         if (value_desc.get_index()<LinkableValueNode::Handle::cast_static(value_desc.get_parent_value_node())->link_count()-1)
1716                                                                         {
1717                                                                                 printf("in two - b\n");
1718                                                                                 printf("inserting node with index %d\n", value_desc.get_index()+1);
1719                                                                                 vertex_list.insert(next,
1720                                                                                                                    synfigapp::ValueDesc(value_desc.get_parent_value_node(),
1721                                                                                                                                                                 value_desc.get_index()+1));
1722                                                                                 done=false;
1723                                                                                 break;
1724                                                                         }
1725                                                                 }
1726                                                                 else // !positive_trend
1727                                                                 {
1728                                                                         printf("negative trend\n");
1729                                                                         if(value_desc.get_index()>0)
1730                                                                         {
1731                                                                                 printf("in two - a\n");
1732                                                                                 printf("inserting node on this line with index %d\n",
1733                                                                                            value_desc.get_index()-1);
1734                                                                                 vertex_list.insert(next,
1735                                                                                                                    synfigapp::ValueDesc(value_desc.get_parent_value_node(),
1736                                                                                                                                                                 value_desc.get_index()-1));
1737                                                                                 done=false;
1738                                                                                 break;
1739                                                                         }
1740                                                                 }
1741                                                         }
1742                                                 }
1743                                         }
1744                                 }
1745                         }
1746                 }
1747
1748                 if(vertex_list.size()<=2)
1749                 {
1750                         synfig::info(__FILE__":%d: Vertex list too small to make region.",__LINE__);
1751                         return Smach::RESULT_OK;
1752                 }
1753
1754                 debug_show_vertex_list(i, vertex_list, "finished tidying list", -1);
1755         }
1756
1757         // If we aren't the trivial case,
1758         // then go ahead and create the new
1759         // BLine value node
1760         if(!value_node_bline)
1761         {
1762                 synfig::info("not all points are on the same bline");
1763                 value_node_bline=ValueNode_BLine::create();
1764
1765                 std::list<synfigapp::ValueDesc>::iterator iter;
1766                 for(iter=vertex_list.begin();iter!=vertex_list.end();++iter)
1767                 {
1768                         // Ensure that the vertex is exported.
1769                         get_canvas_interface()->auto_export(*iter);
1770
1771                         value_node_bline->add(iter->get_value_node());
1772                         //value_node_bline->add(ValueNode_BLine::ListEntry(iter->get_value_node()));
1773                 }
1774
1775                 value_node_bline->set_loop(true);
1776         }
1777
1778         get_canvas_interface()->auto_export(value_node_bline);
1779
1780         // Now we create the region layer
1781         // Create the layer
1782         {
1783                 Layer::Handle layer;
1784                 Canvas::Handle canvas(get_canvas_view()->get_canvas());
1785                 int depth(0);
1786
1787                 // we are temporarily using the layer to hold something
1788                 layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
1789                 if(layer)
1790                 {
1791                         depth=layer->get_depth();
1792                         canvas=layer->get_canvas();
1793                 }
1794
1795                 synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
1796
1797                 layer=get_canvas_interface()->add_layer_to("region",canvas,depth);
1798                 if (!layer)
1799                 {
1800                         get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
1801                         group.cancel();
1802                         return Smach::RESULT_ERROR;
1803                 }
1804
1805                 if(get_feather())
1806                 {
1807                         layer->set_param("feather",get_feather());
1808                         get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
1809                 }
1810                 get_canvas_interface()->signal_layer_param_changed()(layer,"color");
1811
1812                 synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
1813
1814                 assert(action);
1815
1816                 action->set_param("canvas",get_canvas());
1817                 action->set_param("canvas_interface",get_canvas_interface());
1818                 action->set_param("layer",layer);
1819                 if(!action->set_param("param",String("bline")))
1820                         synfig::error("LayerParamConnect didn't like \"param\"");
1821                 if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
1822                         synfig::error("LayerParamConnect didn't like \"value_node\"");
1823
1824                 if(!get_canvas_interface()->get_instance()->perform_action(action))
1825                 {
1826                         get_canvas_view()->get_ui_interface()->error(_("Unable to create Region layer"));
1827                         group.cancel();
1828                         return Smach::RESULT_ERROR;
1829                 }
1830                 get_canvas_view()->get_selection_manager()->set_selected_layer(layer);
1831         }
1832
1833         return Smach::RESULT_ACCEPT;
1834 }
1835
1836 void
1837 StateDraw_Context::refresh_ducks()
1838 {
1839         get_canvas_view()->queue_rebuild_ducks();
1840 /*
1841         get_work_area()->clear_ducks();
1842
1843
1844         std::list< etl::smart_ptr<std::list<synfig::Point> > >::iterator iter;
1845
1846         for(iter=stroke_list.begin();iter!=stroke_list.end();++iter)
1847         {
1848                 get_work_area()->add_stroke(*iter);
1849         }
1850
1851         get_work_area()->queue_draw();
1852 */
1853 }
1854
1855
1856 Smach::event_result
1857 StateDraw_Context::extend_bline_from_begin(ValueNode_BLine::Handle value_node,std::list<synfig::BLinePoint> bline,bool complete_loop)
1858 {
1859         // Create the action group
1860         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("Extend BLine"));
1861
1862         if (complete_loop)
1863         {
1864                 synfigapp::Action::Handle action(synfigapp::Action::create("ValueNodeDynamicListLoop"));
1865                 assert(action);
1866
1867                 action->set_param("canvas",get_canvas());
1868                 action->set_param("canvas_interface",get_canvas_interface());
1869                 action->set_param("value_node",ValueNode::Handle(value_node));
1870
1871                 if(!get_canvas_interface()->get_instance()->perform_action(action))
1872                 {
1873                         get_canvas_view()->get_ui_interface()->error(_("Unable to set loop for bline"));
1874                         group.cancel();
1875                         return Smach::RESULT_ERROR;
1876                 }
1877         }
1878
1879         std::list<synfig::BLinePoint>::reverse_iterator iter;
1880         for(iter=bline.rbegin();!(iter==bline.rend());++iter)
1881         {
1882                 ValueNode_Composite::Handle composite(ValueNode_Composite::create(*iter));
1883
1884                 synfigapp::Action::Handle action(synfigapp::Action::create("ValueNodeDynamicListInsert"));
1885
1886                 assert(action);
1887                 synfigapp::ValueDesc value_desc(value_node,0);
1888
1889                 action->set_param("canvas",get_canvas());
1890                 action->set_param("canvas_interface",get_canvas_interface());
1891                 action->set_param("value_desc",value_desc);
1892                 if(!action->set_param("item",ValueNode::Handle(composite)))
1893                         synfig::error("ACTION didn't like \"item\"");
1894
1895                 if(!get_canvas_interface()->get_instance()->perform_action(action))
1896                 {
1897                         get_canvas_view()->get_ui_interface()->error(_("Unable to insert item"));
1898                         group.cancel();
1899                         //refresh_ducks();
1900                         return Smach::RESULT_ERROR;
1901                 }
1902         }
1903         last_stroke=value_node;
1904         return Smach::RESULT_ACCEPT;
1905 }
1906
1907 Smach::event_result
1908 StateDraw_Context::extend_bline_from_end(ValueNode_BLine::Handle value_node,std::list<synfig::BLinePoint> bline,bool complete_loop)
1909 {
1910         // Create the action group
1911         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("Extend BLine"));
1912
1913         if (complete_loop)
1914         {
1915                 synfigapp::Action::Handle action(synfigapp::Action::create("ValueNodeDynamicListLoop"));
1916                 assert(action);
1917
1918                 action->set_param("canvas",get_canvas());
1919                 action->set_param("canvas_interface",get_canvas_interface());
1920                 action->set_param("value_node",ValueNode::Handle(value_node));
1921
1922                 if(!get_canvas_interface()->get_instance()->perform_action(action))
1923                 {
1924                         get_canvas_view()->get_ui_interface()->error(_("Unable to set loop for bline"));
1925                         group.cancel();
1926                         return Smach::RESULT_ERROR;
1927                 }
1928         }
1929
1930         std::list<synfig::BLinePoint>::iterator iter;
1931         for(iter=bline.begin();iter!=bline.end();++iter)
1932         {
1933                 ValueNode_Composite::Handle composite(ValueNode_Composite::create(*iter));
1934
1935                 synfigapp::Action::Handle action(synfigapp::Action::create("ValueNodeDynamicListInsert"));
1936
1937                 assert(action);
1938                 synfigapp::ValueDesc value_desc(value_node,value_node->link_count());
1939
1940                 action->set_param("canvas",get_canvas());
1941                 action->set_param("canvas_interface",get_canvas_interface());
1942                 action->set_param("value_desc",value_desc);
1943                 if(!action->set_param("item",ValueNode::Handle(composite)))
1944                         synfig::error("ACTION didn't like \"item\"");
1945
1946                 if(!get_canvas_interface()->get_instance()->perform_action(action))
1947                 {
1948                         get_canvas_view()->get_ui_interface()->error(_("Unable to insert item"));
1949                         group.cancel();
1950                         //refresh_ducks();
1951                         return Smach::RESULT_ERROR;
1952                 }
1953         }
1954         last_stroke=value_node;
1955         return Smach::RESULT_ACCEPT;
1956 }
1957
1958 void
1959 StateDraw_Context::reverse_bline(std::list<synfig::BLinePoint> &bline)
1960 {
1961         int i;
1962
1963         std::list<synfig::BLinePoint>::iterator iter,eiter;
1964         iter=bline.begin();
1965         eiter=bline.end();
1966         eiter--;
1967         for(i=0;i<(int)bline.size()/2;++iter,--eiter,i++)
1968         {
1969                 iter_swap(iter,eiter);
1970                 iter->reverse();
1971                 eiter->reverse();
1972         }
1973 }
1974
1975 Smach::event_result
1976 StateDraw_Context::fill_last_stroke_and_unselect_other_layers()
1977 {
1978         if(!last_stroke)
1979                 return Smach::RESULT_OK;
1980
1981         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("Fill Stroke"));
1982
1983         Layer::Handle layer;
1984
1985         get_canvas_interface()->auto_export(last_stroke);
1986
1987         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
1988
1989         Canvas::Handle canvas(get_canvas_view()->get_canvas());
1990         int depth(0);
1991
1992         layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
1993         if(layer)
1994         {
1995                 depth=layer->get_depth();
1996                 canvas=layer->get_canvas();
1997         }
1998
1999         get_canvas_interface()->get_selection_manager()->clear_selected_layers();
2000         layer=get_canvas_interface()->add_layer_to("region", canvas, depth);
2001         if (!layer) return Smach::RESULT_ERROR;
2002         layer->set_description(last_stroke_id + _(" Region"));
2003
2004         synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
2005
2006         assert(action);
2007
2008         action->set_param("canvas",get_canvas());
2009         action->set_param("canvas_interface",get_canvas_interface());
2010         action->set_param("layer",layer);
2011         if(!action->set_param("param",String("bline")))
2012                 synfig::error("LayerParamConnect didn't like \"param\"");
2013         if(!action->set_param("value_node",ValueNode::Handle(last_stroke)))
2014                 synfig::error("LayerParamConnect didn't like \"value_node\"");
2015
2016         if(!get_canvas_interface()->get_instance()->perform_action(action))
2017         {
2018                 get_canvas_view()->get_ui_interface()->error(_("Unable to create Region layer"));
2019                 group.cancel();
2020                 return Smach::RESULT_OK;
2021         }
2022         get_canvas_view()->get_selection_manager()->set_selected_layer(layer);
2023         return Smach::RESULT_OK;
2024 }
2025
2026 void
2027 StateDraw_Context::fill_last_stroke()
2028 {
2029         if(!last_stroke)
2030                 return;
2031
2032         synfigapp::SelectionManager::LayerList layer_list = get_canvas_view()->get_selection_manager()->get_selected_layers();
2033         fill_last_stroke_and_unselect_other_layers();
2034         get_canvas_view()->get_selection_manager()->set_selected_layers(layer_list);
2035 }