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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file state_star.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) 2008 Chris Moore
  10 **
  11 **      This package is free software; you can redistribute it and/or
  12 **      modify it under the terms of the GNU General Public License as
  13 **      published by the Free Software Foundation; either version 2 of
  14 **      the License, or (at your option) any later version.
  15 **
  16 **      This package is distributed in the hope that it will be useful,
  17 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19 **      General Public License for more details.
  20 **      \endlegal
  21 */
  22 /* ========================================================================= */
  23
  24 /* === H E A D E R S ======================================================= */
  25
  26 #ifdef USING_PCH
  27 #       include "pch.h"
  28 #else
  29 #ifdef HAVE_CONFIG_H
  30 #       include <config.h>
  31 #endif
  32
  33 #include <gtkmm/dialog.h>
  34 #include <gtkmm/entry.h>
  35
  36 #include <synfig/valuenode_dynamiclist.h>
  37 #include <synfigapp/action_system.h>
  38 #include <synfig/valuenode_bline.h>
  39
  40 #include "state_star.h"
  41 #include "canvasview.h"
  42 #include "workarea.h"
  43 #include "app.h"
  44
  45 #include <synfigapp/action.h>
  46 #include "event_mouse.h"
  47 #include "event_layerclick.h"
  48 #include "toolbox.h"
  49 #include "dialog_tooloptions.h"
  50 #include <gtkmm/optionmenu.h>
  51 #include "duck.h"
  52 #include "widget_enum.h"
  53 #include <synfigapp/main.h>
  54
  55 #include "general.h"
  56
  57 #endif
  58
  59 /* === U S I N G =========================================================== */
  60
  61 using namespace std;
  62 using namespace etl;
  63 using namespace synfig;
  64 using namespace studio;
  65
  66 /* === M A C R O S ========================================================= */
  67
  68 /* === G L O B A L S ======================================================= */
  69
  70 StateStar studio::state_star;
  71
  72 /* === C L A S S E S & S T R U C T S ======================================= */
  73
  74 class studio::StateStar_Context : public sigc::trackable
  75 {
  76         etl::handle<CanvasView> canvas_view_;
  77         CanvasView::IsWorking is_working;
  78
  79         Duckmatic::Push duckmatic_push;
  80
  81         Point point_holder;
  82
  83         etl::handle<Duck> point2_duck;
  84
  85         void refresh_ducks();
  86
  87         bool prev_workarea_layer_status_;
  88
  89         //Toolbox settings
  90         synfigapp::Settings& settings;
  91
  92         //Toolbox display
  93         Gtk::Table options_table;
  94
  95         Gtk::Entry              entry_id; //what to name the layer
  96
  97         Gtk::Adjustment adj_feather;
  98         Gtk::Adjustment adj_number_of_points;
  99         Gtk::Adjustment adj_inner_tangent;
 100         Gtk::Adjustment adj_outer_tangent;
 101         Gtk::Adjustment adj_angle_offset;
 102         Gtk::SpinButton spin_feather;
 103         Gtk::SpinButton spin_number_of_points;
 104         Gtk::SpinButton spin_inner_tangent;
 105         Gtk::SpinButton spin_outer_tangent;
 106         Gtk::SpinButton spin_angle_offset;
 107
 108         Gtk::CheckButton checkbutton_invert;
 109         Gtk::CheckButton checkbutton_regular_polygon;
 110         Gtk::CheckButton checkbutton_layer_star;
 111         Gtk::CheckButton checkbutton_layer_region;
 112         Gtk::CheckButton checkbutton_layer_outline;
 113         Gtk::CheckButton checkbutton_layer_curve_gradient;
 114         Gtk::CheckButton checkbutton_layer_plant;
 115         Gtk::CheckButton checkbutton_layer_link_offsets;
 116
 117 public:
 118
 119         // this only counts the layers which use blines - they're the only
 120         // ones we link the offsets for
 121         int layers_to_create()const
 122         {
 123                 return
 124                         get_layer_region_flag() +
 125                         get_layer_outline_flag() +
 126                         get_layer_curve_gradient_flag() +
 127                         get_layer_plant_flag();
 128         }
 129
 130         synfig::String get_id()const { return entry_id.get_text(); }
 131         void set_id(const synfig::String& x) { return entry_id.set_text(x); }
 132
 133         Real get_feather()const { return adj_feather.get_value(); }
 134         void set_feather(Real f) { adj_feather.set_value(f); }
 135
 136         Real get_number_of_points()const { return adj_number_of_points.get_value(); }
 137         void set_number_of_points(Real f) { adj_number_of_points.set_value(f); }
 138
 139         Real get_inner_tangent()const { return adj_inner_tangent.get_value(); }
 140         void set_inner_tangent(Real f) { adj_inner_tangent.set_value(f); }
 141
 142         Real get_outer_tangent()const { return adj_outer_tangent.get_value(); }
 143         void set_outer_tangent(Real f) { adj_outer_tangent.set_value(f); }
 144
 145         Real get_angle_offset()const { return adj_angle_offset.get_value(); }
 146         void set_angle_offset(Real f) { adj_angle_offset.set_value(f); }
 147
 148         bool get_invert()const { return checkbutton_invert.get_active(); }
 149         void set_invert(bool i) { checkbutton_invert.set_active(i); }
 150
 151         bool get_regular_polygon()const { return checkbutton_regular_polygon.get_active(); }
 152         void set_regular_polygon(bool i) { checkbutton_regular_polygon.set_active(i); }
 153
 154         bool get_layer_star_flag()const { return checkbutton_layer_star.get_active(); }
 155         void set_layer_star_flag(bool x) { return checkbutton_layer_star.set_active(x); }
 156
 157         bool get_layer_region_flag()const { return checkbutton_layer_region.get_active(); }
 158         void set_layer_region_flag(bool x) { return checkbutton_layer_region.set_active(x); }
 159
 160         bool get_layer_outline_flag()const { return checkbutton_layer_outline.get_active(); }
 161         void set_layer_outline_flag(bool x) { return checkbutton_layer_outline.set_active(x); }
 162
 163         bool get_layer_curve_gradient_flag()const { return checkbutton_layer_curve_gradient.get_active(); }
 164         void set_layer_curve_gradient_flag(bool x) { return checkbutton_layer_curve_gradient.set_active(x); }
 165
 166         bool get_layer_plant_flag()const { return checkbutton_layer_plant.get_active(); }
 167         void set_layer_plant_flag(bool x) { return checkbutton_layer_plant.set_active(x); }
 168
 169         bool get_layer_link_offsets_flag()const { return checkbutton_layer_link_offsets.get_active(); }
 170         void set_layer_link_offsets_flag(bool x) { return checkbutton_layer_link_offsets.set_active(x); }
 171
 172         void refresh_tool_options(); //to refresh the toolbox
 173
 174         //events
 175         Smach::event_result event_stop_handler(const Smach::event& x);
 176         Smach::event_result event_refresh_handler(const Smach::event& x);
 177         Smach::event_result event_mouse_click_handler(const Smach::event& x);
 178         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 179
 180         //constructor destructor
 181         StateStar_Context(CanvasView* canvas_view);
 182         ~StateStar_Context();
 183
 184         //Canvas interaction
 185         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 186         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 187         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 188         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 189
 190         //Modifying settings etc.
 191         void load_settings();
 192         void save_settings();
 193         void reset();
 194         void increment_id();
 195         bool egress_on_selection_change;
 196         Smach::event_result event_layer_selection_changed_handler(const Smach::event& /*x*/)
 197         {
 198                 if(egress_on_selection_change)
 199                         throw Smach::egress_exception();
 200                 return Smach::RESULT_OK;
 201         }
 202
 203         void make_star(const Point& p1, const Point& p2);
 204
 205 };      // END of class StateStar_Context
 206
 207 /* === M E T H O D S ======================================================= */
 208
 209 StateStar::StateStar():
 210         Smach::state<StateStar_Context>("star")
 211 {
 212         insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StateStar_Context::event_layer_selection_changed_handler));
 213         insert(event_def(EVENT_STOP,&StateStar_Context::event_stop_handler));
 214         insert(event_def(EVENT_REFRESH,&StateStar_Context::event_refresh_handler));
 215         insert(event_def(EVENT_REFRESH_DUCKS,&StateStar_Context::event_refresh_handler));
 216         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateStar_Context::event_mouse_click_handler));
 217         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DRAG,&StateStar_Context::event_mouse_click_handler));
 218         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_UP,&StateStar_Context::event_mouse_click_handler));
 219         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateStar_Context::event_refresh_tool_options));
 220 }
 221
 222 StateStar::~StateStar()
 223 {
 224 }
 225
 226 void
 227 StateStar_Context::load_settings()
 228 {
 229         String value;
 230
 231         //parse the arguments yargh!
 232         if(settings.get_value("star.id",value))
 233                 set_id(value);
 234         else
 235                 set_id("Star");
 236
 237         if(settings.get_value("star.feather",value))
 238                 set_feather(atof(value.c_str()));
 239         else
 240                 set_feather(0);
 241
 242         if(settings.get_value("star.number_of_points",value))
 243                 set_number_of_points(atof(value.c_str()));
 244         else
 245                 set_number_of_points(5);
 246
 247         if(settings.get_value("star.inner_tangent",value))
 248                 set_inner_tangent(atof(value.c_str()));
 249         else
 250                 set_inner_tangent(0);
 251
 252         if(settings.get_value("star.outer_tangent",value))
 253                 set_outer_tangent(atof(value.c_str()));
 254         else
 255                 set_outer_tangent(0);
 256
 257         if(settings.get_value("star.angle_offset",value))
 258                 set_angle_offset(atof(value.c_str()));
 259         else
 260                 set_angle_offset(0);
 261
 262         if(settings.get_value("star.invert",value) && value != "0")
 263                 set_invert(true);
 264         else
 265                 set_invert(false);
 266
 267         if(settings.get_value("star.regular_polygon",value) && value != "0")
 268                 set_regular_polygon(true);
 269         else
 270                 set_regular_polygon(false);
 271
 272         if(settings.get_value("star.layer_star",value) && value=="0")
 273                 set_layer_star_flag(false);
 274         else
 275                 set_layer_star_flag(true);
 276
 277         if(settings.get_value("star.layer_region",value) && value=="1")
 278                 set_layer_region_flag(true);
 279         else
 280                 set_layer_region_flag(false);
 281
 282         if(settings.get_value("star.layer_outline",value) && value=="1")
 283                 set_layer_outline_flag(true);
 284         else
 285                 set_layer_outline_flag(false);
 286
 287         if(settings.get_value("star.layer_curve_gradient",value) && value=="1")
 288                 set_layer_curve_gradient_flag(true);
 289         else
 290                 set_layer_curve_gradient_flag(false);
 291
 292         if(settings.get_value("star.layer_plant",value) && value=="1")
 293                 set_layer_plant_flag(true);
 294         else
 295                 set_layer_plant_flag(false);
 296
 297         if(settings.get_value("star.layer_link_offsets",value) && value=="0")
 298                 set_layer_link_offsets_flag(false);
 299         else
 300                 set_layer_link_offsets_flag(true);
 301 }
 302
 303 void
 304 StateStar_Context::save_settings()
 305 {
 306         settings.set_value("star.id",get_id());
 307         settings.set_value("star.feather",strprintf("%f",(float)get_feather()));
 308         settings.set_value("star.number_of_points",strprintf("%d",(int)(get_number_of_points() + 0.5)));
 309         settings.set_value("star.inner_tangent",strprintf("%f",(float)get_inner_tangent()));
 310         settings.set_value("star.outer_tangent",strprintf("%f",(float)get_outer_tangent()));
 311         settings.set_value("star.angle_offset",strprintf("%f",(float)get_angle_offset()));
 312         settings.set_value("star.invert",get_invert()?"1":"0");
 313         settings.set_value("star.regular_polygon",get_regular_polygon()?"1":"0");
 314         settings.set_value("star.layer_star",get_layer_star_flag()?"1":"0");
 315         settings.set_value("star.layer_outline",get_layer_outline_flag()?"1":"0");
 316         settings.set_value("star.layer_region",get_layer_region_flag()?"1":"0");
 317         settings.set_value("star.layer_curve_gradient",get_layer_curve_gradient_flag()?"1":"0");
 318         settings.set_value("star.layer_plant",get_layer_plant_flag()?"1":"0");
 319         settings.set_value("star.layer_link_offsets",get_layer_link_offsets_flag()?"1":"0");
 320 }
 321
 322 void
 323 StateStar_Context::reset()
 324 {
 325         refresh_ducks();
 326 }
 327
 328 void
 329 StateStar_Context::increment_id()
 330 {
 331         String id(get_id());
 332         int number=1;
 333         int digits=0;
 334
 335         if(id.empty())
 336                 id="Star";
 337
 338         // If there is a number
 339         // already at the end of the
 340         // id, then remove it.
 341         if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
 342         {
 343                 // figure out how many digits it is
 344                 for (digits = 0;
 345                          (int)id.size()-1 >= digits && id[id.size()-1-digits] <= '9' && id[id.size()-1-digits] >= '0';
 346                          digits++)
 347                         ;
 348
 349                 String str_number;
 350                 str_number=String(id,id.size()-digits,id.size());
 351                 id=String(id,0,id.size()-digits);
 352
 353                 number=atoi(str_number.c_str());
 354         }
 355         else
 356         {
 357                 number=1;
 358                 digits=3;
 359         }
 360
 361         number++;
 362
 363         // Add the number back onto the id
 364         {
 365                 const String format(strprintf("%%0%dd",digits));
 366                 id+=strprintf(format.c_str(),number);
 367         }
 368
 369         // Set the ID
 370         set_id(id);
 371 }
 372
 373 StateStar_Context::StateStar_Context(CanvasView* canvas_view):
 374         canvas_view_(canvas_view),
 375         is_working(*canvas_view),
 376         duckmatic_push(get_work_area()),
 377         prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
 378         settings(synfigapp::Main::get_selected_input_device()->settings()),
 379         entry_id(),
 380         adj_feather(0,0,1,0.01,0.1),
 381         adj_number_of_points(4,2,120,1,1,1), // value, lower, upper, step_increment, page_increment, page_size
 382         adj_inner_tangent(0,-3,3,.01,.1,.1),
 383         adj_outer_tangent(0,-3,10,.01,.1,.1),
 384         adj_angle_offset(0,-360,360,.1,1,1), // value, lower, upper, step_increment, page_increment, page_size
 385         spin_feather(adj_feather,0.1,3),
 386         spin_number_of_points(adj_number_of_points,1,0),
 387         spin_inner_tangent(adj_inner_tangent,1,2),
 388         spin_outer_tangent(adj_outer_tangent,1,2),
 389         spin_angle_offset(adj_angle_offset,1,1),
 390         checkbutton_invert(_("Invert")),
 391         checkbutton_regular_polygon(_("Regular Polygon")),
 392         checkbutton_layer_star(_("Create Star Layer")),
 393         checkbutton_layer_region(_("Create Region BLine")),
 394         checkbutton_layer_outline(_("Create Outline BLine")),
 395         checkbutton_layer_curve_gradient(_("Create Curve Gradient BLine")),
 396         checkbutton_layer_plant(_("Create Plant BLine")),
 397         checkbutton_layer_link_offsets(_("Link BLine Offsets"))
 398 {
 399         egress_on_selection_change=true;
 400         // Set up the tool options dialog
 401         //options_table.attach(*manage(new Gtk::Label(_("Star Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 402         options_table.attach(entry_id, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 403
 404         load_settings();
 405
 406         //feather stuff
 407         options_table.attach(*manage(new Gtk::Label(_("Feather:"))),                    0, 1,  2,  3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 408         options_table.attach(spin_feather,                                                                              1, 2,  2,  3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 409         options_table.attach(checkbutton_invert,                                                                0, 2,  5,  6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 410         options_table.attach(checkbutton_regular_polygon,                                               0, 2,  6,  7, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 411         options_table.attach(checkbutton_layer_star,                                                    0, 2,  7,  8, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 412         options_table.attach(checkbutton_layer_outline,                                                 0, 2,  8,  9, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 413         options_table.attach(checkbutton_layer_region,                                                  0, 2,  9, 10, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 414         options_table.attach(checkbutton_layer_plant,                                                   0, 2, 10, 11, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 415         options_table.attach(checkbutton_layer_curve_gradient,                                  0, 2, 11, 12, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 416         options_table.attach(checkbutton_layer_link_offsets,                                    0, 2, 12, 13, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 417         options_table.attach(*manage(new Gtk::Label(_("Number of Points:"))),   0, 1, 13, 14, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 418         options_table.attach(spin_number_of_points,                                                             1, 2, 13, 14, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 419         options_table.attach(*manage(new Gtk::Label(_("Inner Tangent:"))),              0, 1, 14, 15, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 420         options_table.attach(spin_inner_tangent,                                                                1, 2, 14, 15, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 421         options_table.attach(*manage(new Gtk::Label(_("Outer Tangent:"))),              0, 1, 15, 16, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 422         options_table.attach(spin_outer_tangent,                                                                1, 2, 15, 16, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 423         options_table.attach(*manage(new Gtk::Label(_("Angle Offset:"))),               0, 1, 16, 17, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 424         options_table.attach(spin_angle_offset,                                                                 1, 2, 16, 17, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 425
 426         options_table.show_all();
 427
 428         refresh_tool_options();
 429         App::dialog_tool_options->present();
 430
 431         // Turn off layer clicking
 432         get_work_area()->set_allow_layer_clicks(false);
 433
 434         // clear out the ducks
 435         get_work_area()->clear_ducks();
 436
 437         // Refresh the work area
 438         get_work_area()->queue_draw();
 439
 440         // Hide the tables if they are showing
 441         //prev_table_status=get_canvas_view()->tables_are_visible();
 442         //if(prev_table_status)get_canvas_view()->hide_tables();
 443
 444         // Disable the time bar
 445         //get_canvas_view()->set_sensitive_timebar(false);
 446
 447         // Connect a signal
 448         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StateStar_Context::on_user_click));
 449         get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 450
 451         App::toolbox->refresh();
 452 }
 453
 454 void
 455 StateStar_Context::refresh_tool_options()
 456 {
 457         App::dialog_tool_options->clear();
 458         App::dialog_tool_options->set_widget(options_table);
 459         App::dialog_tool_options->set_local_name(_("Star Tool"));
 460         App::dialog_tool_options->set_name("star");
 461 }
 462
 463 Smach::event_result
 464 StateStar_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 465 {
 466         refresh_tool_options();
 467         return Smach::RESULT_ACCEPT;
 468 }
 469
 470 StateStar_Context::~StateStar_Context()
 471 {
 472         save_settings();
 473
 474         // Restore layer clicking
 475         get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
 476         get_canvas_view()->work_area->reset_cursor();
 477
 478         App::dialog_tool_options->clear();
 479
 480         // Enable the time bar
 481         //get_canvas_view()->set_sensitive_timebar(true);
 482
 483         // Bring back the tables if they were out before
 484         //if(prev_table_status)get_canvas_view()->show_tables();
 485
 486         // Refresh the work area
 487         get_work_area()->queue_draw();
 488
 489         get_canvas_view()->queue_rebuild_ducks();
 490
 491         App::toolbox->refresh();
 492 }
 493
 494 Smach::event_result
 495 StateStar_Context::event_stop_handler(const Smach::event& /*x*/)
 496 {
 497         throw Smach::egress_exception();
 498 }
 499
 500 Smach::event_result
 501 StateStar_Context::event_refresh_handler(const Smach::event& /*x*/)
 502 {
 503         refresh_ducks();
 504         return Smach::RESULT_ACCEPT;
 505 }
 506
 507 void
 508 StateStar_Context::make_star(const Point& _p1, const Point& _p2)
 509 {
 510         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Star"));
 511         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 512
 513         Layer::Handle layer;
 514
 515         Canvas::Handle canvas;
 516         int depth(0);
 517
 518         // we are temporarily using the layer to hold something
 519         layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
 520         if(layer)
 521         {
 522                 depth=layer->get_depth();
 523                 canvas=layer->get_canvas();
 524         }
 525
 526         synfigapp::SelectionManager::LayerList layer_selection;
 527         if (!getenv("SYNFIG_TOOLS_CLEAR_SELECTION"))
 528                 layer_selection = get_canvas_view()->get_selection_manager()->get_selected_layers();
 529
 530         const synfig::TransformStack& transform(get_canvas_view()->get_curr_transform_stack());
 531         const Point p1(transform.unperform(_p1));
 532         const Point p2(transform.unperform(_p2));
 533
 534         Real radius1((p2-p1).mag());
 535         Real radius2(radius1/2);
 536         int points = get_number_of_points();
 537         Real inner_tangent = get_inner_tangent() * radius1;
 538         Real outer_tangent = get_outer_tangent() * radius2;
 539         Angle::deg offset(get_angle_offset());
 540         bool regular(get_regular_polygon());
 541         Angle::deg angle(360.0/points);
 542         Real x(p1[0]), y(p1[1]);
 543
 544         std::vector<BLinePoint> new_list;
 545         int point(0);
 546         for (int i = 0; i < points; i++)
 547         {
 548                 new_list.push_back(*(new BLinePoint));
 549                 new_list[point].set_width(1);
 550                 new_list[point].set_vertex(Point(radius1*Angle::cos(angle*i + offset).get() + x,
 551                                                                          radius1*Angle::sin(angle*i + offset).get() + y));
 552                 new_list[point++].set_tangent(Point(-Angle::sin(angle*i + offset).get(),
 553                                                                                          Angle::cos(angle*i + offset).get()) * outer_tangent);
 554
 555                 if (!regular)
 556                 {
 557                         new_list.push_back(*(new BLinePoint));
 558                         new_list[point].set_width(1);
 559                         new_list[point].set_vertex(Point(radius2*Angle::cos(angle*i + angle/2 + offset).get() + x,
 560                                                                                          radius2*Angle::sin(angle*i + angle/2 + offset).get() + y));
 561                         new_list[point++].set_tangent(Point(-Angle::sin(angle*i + angle/2 + offset).get(),
 562                                                                                                  Angle::cos(angle*i + angle/2 + offset).get()) * inner_tangent);
 563                 }
 564         }
 565
 566         ValueNode_BLine::Handle value_node_bline(ValueNode_BLine::create(new_list));
 567         assert(value_node_bline);
 568
 569         ValueNode_Const::Handle value_node_offset(ValueNode_Const::create(Vector()));
 570         assert(value_node_offset);
 571
 572         // Set the looping flag
 573         value_node_bline->set_loop(true);
 574
 575         if(!canvas)
 576                 canvas=get_canvas_view()->get_canvas();
 577
 578         value_node_bline->set_member_canvas(canvas);
 579
 580         // count how many layers we're going to be creating
 581         int layers_to_create = this->layers_to_create();
 582
 583         ///////////////////////////////////////////////////////////////////////////
 584         //   S T A R
 585         ///////////////////////////////////////////////////////////////////////////
 586
 587         if (get_layer_star_flag())
 588         {
 589                 layer=get_canvas_interface()->add_layer_to("star",canvas,depth);
 590                 layer_selection.push_back(layer);
 591
 592                 layer->set_param("offset",p1);
 593                 get_canvas_interface()->signal_layer_param_changed()(layer,"offset");
 594
 595                 layer->set_param("radius1",(p2-p1).mag());
 596                 get_canvas_interface()->signal_layer_param_changed()(layer,"radius1");
 597
 598                 layer->set_param("radius2",(p2-p1).mag()/2);
 599                 get_canvas_interface()->signal_layer_param_changed()(layer,"radius2");
 600
 601                 layer->set_param("angle",offset);
 602                 get_canvas_interface()->signal_layer_param_changed()(layer,"angle");
 603
 604                 layer->set_param("points",points);
 605                 get_canvas_interface()->signal_layer_param_changed()(layer,"points");
 606
 607                 layer->set_param("regular_polygon",regular);
 608                 get_canvas_interface()->signal_layer_param_changed()(layer,"regular_polygon");
 609
 610                 layer->set_param("feather",get_feather());
 611                 get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
 612
 613                 layer->set_param("invert",get_invert());
 614                 get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 615
 616                 layer->set_description(get_id());
 617                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 618         }
 619
 620         ///////////////////////////////////////////////////////////////////////////
 621         //   C U R V E   G R A D I E N T
 622         ///////////////////////////////////////////////////////////////////////////
 623
 624         if(get_layer_curve_gradient_flag())
 625         {
 626                 synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 627
 628                 Layer::Handle layer(get_canvas_interface()->add_layer_to("curve_gradient",canvas,depth));
 629                 assert(layer);
 630                 layer_selection.push_back(layer);
 631                 layer->set_description(get_id()+_(" Gradient"));
 632                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 633
 634                 {
 635                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 636                         assert(action);
 637
 638                         action->set_param("canvas",get_canvas());
 639                         action->set_param("canvas_interface",get_canvas_interface());
 640                         action->set_param("layer",layer);
 641                         if(!action->set_param("param",String("bline")))
 642                                 synfig::error("LayerParamConnect didn't like \"param\"");
 643                         if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 644                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 645
 646                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 647                         {
 648                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 649                                 group.cancel();
 650                                 throw String(_("Unable to create Gradient layer"));
 651                                 return;
 652                         }
 653                 }
 654
 655                 // only link the curve gradient's offset parameter if the option is selected and we're creating more than one layer
 656                 if (get_layer_link_offsets_flag() && layers_to_create > 1)
 657                 {
 658                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 659                         assert(action);
 660
 661                         action->set_param("canvas",get_canvas());
 662                         action->set_param("canvas_interface",get_canvas_interface());
 663                         action->set_param("layer",layer);
 664                         if(!action->set_param("param",String("offset")))
 665                                 synfig::error("LayerParamConnect didn't like \"param\"");
 666                         if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
 667                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 668
 669                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 670                         {
 671                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 672                                 group.cancel();
 673                                 throw String(_("Unable to create Gradient layer"));
 674                                 return;
 675                         }
 676                 }
 677         }
 678
 679         ///////////////////////////////////////////////////////////////////////////
 680         //   P L A N T
 681         ///////////////////////////////////////////////////////////////////////////
 682
 683         if(get_layer_plant_flag())
 684         {
 685                 synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 686
 687                 Layer::Handle layer(get_canvas_interface()->add_layer_to("plant",canvas,depth));
 688                 assert(layer);
 689                 layer_selection.push_back(layer);
 690                 layer->set_description(get_id()+_(" Plant"));
 691                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 692
 693                 {
 694                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 695                         assert(action);
 696
 697                         action->set_param("canvas",get_canvas());
 698                         action->set_param("canvas_interface",get_canvas_interface());
 699                         action->set_param("layer",layer);
 700                         if(!action->set_param("param",String("bline")))
 701                                 synfig::error("LayerParamConnect didn't like \"param\"");
 702                         if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 703                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 704
 705                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 706                         {
 707                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 708                                 group.cancel();
 709                                 throw String(_("Unable to create Plant layer"));
 710                                 return;
 711                         }
 712                 }
 713
 714                 // only link the plant's offset parameter if the option is selected and we're creating more than one layer
 715                 if (get_layer_link_offsets_flag() && layers_to_create > 1)
 716                 {
 717                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 718                         assert(action);
 719
 720                         action->set_param("canvas",get_canvas());
 721                         action->set_param("canvas_interface",get_canvas_interface());
 722                         action->set_param("layer",layer);
 723                         if(!action->set_param("param",String("offset")))
 724                                 synfig::error("LayerParamConnect didn't like \"param\"");
 725                         if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
 726                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 727
 728                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 729                         {
 730                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 731                                 group.cancel();
 732                                 throw String(_("Unable to create Plant layer"));
 733                                 return;
 734                         }
 735                 }
 736         }
 737
 738         ///////////////////////////////////////////////////////////////////////////
 739         //   R E G I O N
 740         ///////////////////////////////////////////////////////////////////////////
 741
 742         if(get_layer_region_flag())
 743         {
 744                 synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 745
 746                 Layer::Handle layer(get_canvas_interface()->add_layer_to("region",canvas,depth));
 747                 assert(layer);
 748                 layer_selection.push_back(layer);
 749                 layer->set_description(get_id()+_(" Region"));
 750                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 751
 752                 layer->set_param("feather",get_feather());
 753                 get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
 754
 755                 layer->set_param("invert",get_invert());
 756                 get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 757
 758                 if(get_layer_outline_flag())
 759                         layer->set_param("color",synfigapp::Main::get_background_color());
 760
 761                 // I don't know if it's safe to reuse the same layer_param_connect action, so I'm
 762                 // using 2 separate ones.
 763                 {
 764                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 765                         assert(action);
 766
 767                         action->set_param("canvas",get_canvas());
 768                         action->set_param("canvas_interface",get_canvas_interface());
 769                         action->set_param("layer",layer);
 770                         if(!action->set_param("param",String("bline")))
 771                                 synfig::error("LayerParamConnect didn't like \"param\"");
 772                         if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 773                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 774
 775                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 776                         {
 777                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create Region layer"));
 778                                 group.cancel();
 779                                 throw String(_("Unable to create Region layer"));
 780                                 return;
 781                         }
 782                 }
 783
 784                 // only link the region's offset parameter if the option is selected and we're creating more than one layer
 785                 if (get_layer_link_offsets_flag() && layers_to_create > 1)
 786                 {
 787                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 788                         assert(action);
 789
 790                         action->set_param("canvas",get_canvas());
 791                         action->set_param("canvas_interface",get_canvas_interface());
 792                         action->set_param("layer",layer);
 793                         if(!action->set_param("param",String("offset")))
 794                                 synfig::error("LayerParamConnect didn't like \"param\"");
 795                         if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
 796                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 797
 798                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 799                         {
 800                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create Region layer"));
 801                                 group.cancel();
 802                                 throw String(_("Unable to create Region layer"));
 803                                 return;
 804                         }
 805                 }
 806         }
 807
 808         ///////////////////////////////////////////////////////////////////////////
 809         //   O U T L I N E
 810         ///////////////////////////////////////////////////////////////////////////
 811
 812         if (get_layer_outline_flag())
 813         {
 814                 Layer::Handle layer(get_canvas_interface()->add_layer_to("outline",canvas,depth));
 815                 assert(layer);
 816                 layer_selection.push_back(layer);
 817                 layer->set_description(get_id()+_(" Outline"));
 818                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 819
 820                 layer->set_param("feather",get_feather());
 821                 get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
 822
 823                 layer->set_param("invert",get_invert());
 824                 get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 825
 826                 {
 827                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 828                         assert(action);
 829
 830                         action->set_param("canvas",get_canvas());
 831                         action->set_param("canvas_interface",get_canvas_interface());
 832                         action->set_param("layer",layer);
 833                         if(!action->set_param("param",String("bline")))
 834                                 synfig::error("LayerParamConnect didn't like \"param\"");
 835                         if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 836                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 837
 838                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 839                         {
 840                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 841                                 group.cancel();
 842                                 throw String(_("Unable to create Outline layer"));
 843                                 return;
 844                         }
 845                 }
 846
 847                 // only link the outline's offset parameter if the option is selected and we're creating more than one layer
 848                 if (get_layer_link_offsets_flag() && layers_to_create > 1)
 849                 {
 850                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 851                         assert(action);
 852
 853                         action->set_param("canvas",get_canvas());
 854                         action->set_param("canvas_interface",get_canvas_interface());
 855                         action->set_param("layer",layer);
 856                         if(!action->set_param("param",String("offset")))
 857                                 synfig::error("LayerParamConnect didn't like \"param\"");
 858                         if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
 859                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 860
 861                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 862                         {
 863                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 864                                 group.cancel();
 865                                 throw String(_("Unable to create Outline layer"));
 866                                 return;
 867                         }
 868                 }
 869         }
 870
 871         egress_on_selection_change=false;
 872         get_canvas_interface()->get_selection_manager()->clear_selected_layers();
 873         get_canvas_interface()->get_selection_manager()->set_selected_layers(layer_selection);
 874         egress_on_selection_change=true;
 875
 876         reset();
 877         increment_id();
 878 }
 879
 880 Smach::event_result
 881 StateStar_Context::event_mouse_click_handler(const Smach::event& x)
 882 {
 883         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 884
 885         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DOWN && event.button==BUTTON_LEFT)
 886         {
 887                 point_holder=get_work_area()->snap_point_to_grid(event.pos);
 888                 etl::handle<Duck> duck=new Duck();
 889                 duck->set_point(point_holder);
 890                 duck->set_name("p1");
 891                 duck->set_type(Duck::TYPE_POSITION);
 892                 duck->set_editable(false);
 893                 get_work_area()->add_duck(duck);
 894
 895                 point2_duck=new Duck();
 896                 point2_duck->set_point(Vector(0,0));
 897                 point2_duck->set_name("radius");
 898                 point2_duck->set_origin(duck);
 899                 point2_duck->set_radius(true);
 900                 point2_duck->set_scalar(-1);
 901                 point2_duck->set_type(Duck::TYPE_RADIUS);
 902                 point2_duck->set_hover(true);
 903                 get_work_area()->add_duck(point2_duck);
 904
 905                 return Smach::RESULT_ACCEPT;
 906         }
 907
 908         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DRAG && event.button==BUTTON_LEFT)
 909         {
 910                 point2_duck->set_point(point_holder-get_work_area()->snap_point_to_grid(event.pos));
 911                 get_work_area()->queue_draw();
 912                 return Smach::RESULT_ACCEPT;
 913         }
 914
 915         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_UP && event.button==BUTTON_LEFT)
 916         {
 917                 Point point(get_work_area()->snap_point_to_grid(event.pos));
 918
 919                 if (App::restrict_radius_ducks)
 920                 {
 921                         if ((point[0] - point_holder[0]) < 0) point[0] = point_holder[0];
 922                         if ((point[1] - point_holder[1]) < 0) point[1] = point_holder[1];
 923                 }
 924
 925                 make_star(point_holder, point);
 926                 get_work_area()->clear_ducks();
 927                 return Smach::RESULT_ACCEPT;
 928         }
 929
 930         return Smach::RESULT_OK;
 931 }
 932
 933
 934 void
 935 StateStar_Context::refresh_ducks()
 936 {
 937         get_work_area()->clear_ducks();
 938         get_work_area()->queue_draw();
 939 }