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