synfig-studio/src/gui/states/state_rectangle.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file state_rectangle.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_rectangle.h"
  41 #include "state_normal.h"
  42 #include "canvasview.h"
  43 #include "workarea.h"
  44 #include "app.h"
  45
  46 #include <synfigapp/action.h>
  47 #include "event_mouse.h"
  48 #include "event_layerclick.h"
  49 #include "toolbox.h"
  50 #include "docks/dialog_tooloptions.h"
  51 #include <gtkmm/optionmenu.h>
  52 #include "duck.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 StateRectangle studio::state_rectangle;
  71
  72 /* === C L A S S E S & S T R U C T S ======================================= */
  73
  74 class studio::StateRectangle_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_expand;
  98         Gtk::Adjustment adj_feather;
  99         Gtk::SpinButton spin_expand;
 100         Gtk::SpinButton spin_feather;
 101
 102         Gtk::CheckButton checkbutton_invert;
 103         Gtk::CheckButton checkbutton_layer_rectangle;
 104         Gtk::CheckButton checkbutton_layer_region;
 105         Gtk::CheckButton checkbutton_layer_outline;
 106         Gtk::CheckButton checkbutton_layer_curve_gradient;
 107         Gtk::CheckButton checkbutton_layer_plant;
 108         Gtk::CheckButton checkbutton_layer_link_origins;
 109
 110 public:
 111
 112         // this only counts the layers which use blines - they're the only
 113         // ones we link the origins for
 114         int layers_to_create()const
 115         {
 116                 return
 117                         get_layer_region_flag() +
 118                         get_layer_outline_flag() +
 119                         get_layer_curve_gradient_flag() +
 120                         get_layer_plant_flag();
 121         }
 122
 123         synfig::String get_id()const { return entry_id.get_text(); }
 124         void set_id(const synfig::String& x) { return entry_id.set_text(x); }
 125
 126         Real get_expand()const { return adj_expand.get_value(); }
 127         void set_expand(Real f) { adj_expand.set_value(f); }
 128
 129         Real get_feather()const { return adj_feather.get_value(); }
 130         void set_feather(Real f) { adj_feather.set_value(f); }
 131
 132         bool get_invert()const { return checkbutton_invert.get_active(); }
 133         void set_invert(bool i) { checkbutton_invert.set_active(i); }
 134
 135         bool get_layer_rectangle_flag()const { return checkbutton_layer_rectangle.get_active(); }
 136         void set_layer_rectangle_flag(bool x) { return checkbutton_layer_rectangle.set_active(x); }
 137
 138         bool get_layer_region_flag()const { return checkbutton_layer_region.get_active(); }
 139         void set_layer_region_flag(bool x) { return checkbutton_layer_region.set_active(x); }
 140
 141         bool get_layer_outline_flag()const { return checkbutton_layer_outline.get_active(); }
 142         void set_layer_outline_flag(bool x) { return checkbutton_layer_outline.set_active(x); }
 143
 144         bool get_layer_curve_gradient_flag()const { return checkbutton_layer_curve_gradient.get_active(); }
 145         void set_layer_curve_gradient_flag(bool x) { return checkbutton_layer_curve_gradient.set_active(x); }
 146
 147         bool get_layer_plant_flag()const { return checkbutton_layer_plant.get_active(); }
 148         void set_layer_plant_flag(bool x) { return checkbutton_layer_plant.set_active(x); }
 149
 150         bool get_layer_link_origins_flag()const { return checkbutton_layer_link_origins.get_active(); }
 151         void set_layer_link_origins_flag(bool x) { return checkbutton_layer_link_origins.set_active(x); }
 152
 153         void refresh_tool_options(); //to refresh the toolbox
 154
 155         //events
 156         Smach::event_result event_stop_handler(const Smach::event& x);
 157         Smach::event_result event_refresh_handler(const Smach::event& x);
 158         Smach::event_result event_mouse_click_handler(const Smach::event& x);
 159         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 160
 161         //constructor destructor
 162         StateRectangle_Context(CanvasView* canvas_view);
 163         ~StateRectangle_Context();
 164
 165         //Canvas interaction
 166         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 167         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 168         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 169         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 170
 171         //Modifying settings etc.
 172         void load_settings();
 173         void save_settings();
 174         void reset();
 175         void increment_id();
 176         bool egress_on_selection_change;
 177         Smach::event_result event_layer_selection_changed_handler(const Smach::event& /*x*/)
 178         {
 179                 if(egress_on_selection_change)
 180                         throw &state_normal; //throw Smach::egress_exception();
 181                 return Smach::RESULT_OK;
 182         }
 183
 184         void make_rectangle(const Point& p1, const Point& p2);
 185
 186 };      // END of class StateGradient_Context
 187
 188 /* === M E T H O D S ======================================================= */
 189
 190 StateRectangle::StateRectangle():
 191         Smach::state<StateRectangle_Context>("rectangle")
 192 {
 193         insert(event_def(EVENT_STOP,&StateRectangle_Context::event_stop_handler));
 194         insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StateRectangle_Context::event_layer_selection_changed_handler));
 195         insert(event_def(EVENT_REFRESH,&StateRectangle_Context::event_refresh_handler));
 196         insert(event_def(EVENT_REFRESH_DUCKS,&StateRectangle_Context::event_refresh_handler));
 197         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateRectangle_Context::event_mouse_click_handler));
 198         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DRAG,&StateRectangle_Context::event_mouse_click_handler));
 199         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_UP,&StateRectangle_Context::event_mouse_click_handler));
 200         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateRectangle_Context::event_refresh_tool_options));
 201 }
 202
 203 StateRectangle::~StateRectangle()
 204 {
 205 }
 206
 207 void
 208 StateRectangle_Context::load_settings()
 209 {
 210         try
 211         {
 212                 SETTINGS_LOCALE_SAFE_AND_BACKUP
 213                 String value;
 214
 215                 //parse the arguments yargh!
 216                 if(settings.get_value("rectangle.id",value))
 217                         set_id(value);
 218                 else
 219                         set_id("Rectangle");
 220
 221                 if(settings.get_value("rectangle.expand",value))
 222                         set_expand(atof(value.c_str()));
 223                 else
 224                         set_expand(0);
 225
 226                 if(settings.get_value("rectangle.feather",value))
 227                         set_feather(atof(value.c_str()));
 228                 else
 229                         set_feather(0);
 230
 231                 if(settings.get_value("rectangle.invert",value) && value != "0")
 232                         set_invert(true);
 233                 else
 234                         set_invert(false);
 235
 236                 if(settings.get_value("rectangle.layer_rectangle",value) && value=="0")
 237                         set_layer_rectangle_flag(false);
 238                 else
 239                         set_layer_rectangle_flag(true);
 240
 241                 if(settings.get_value("rectangle.layer_region",value) && value=="1")
 242                         set_layer_region_flag(true);
 243                 else
 244                         set_layer_region_flag(false);
 245
 246                 if(settings.get_value("rectangle.layer_outline",value) && value=="1")
 247                         set_layer_outline_flag(true);
 248                 else
 249                         set_layer_outline_flag(false);
 250
 251                 if(settings.get_value("rectangle.layer_curve_gradient",value) && value=="1")
 252                         set_layer_curve_gradient_flag(true);
 253                 else
 254                         set_layer_curve_gradient_flag(false);
 255
 256                 if(settings.get_value("rectangle.layer_plant",value) && value=="1")
 257                         set_layer_plant_flag(true);
 258                 else
 259                         set_layer_plant_flag(false);
 260
 261                 if(settings.get_value("rectangle.layer_link_origins",value) && value=="0")
 262                         set_layer_link_origins_flag(false);
 263                 else
 264                         set_layer_link_origins_flag(true);
 265                 SETTINGS_LOCALE_RESTORE
 266         }
 267         catch(...)
 268         {
 269                 synfig::warning("State Rectangle: Caught exception when attempting to load settings.");
 270         }
 271 }
 272
 273 void
 274 StateRectangle_Context::save_settings()
 275 {
 276         try
 277         {
 278                 SETTINGS_LOCALE_SAFE_AND_BACKUP
 279                 settings.set_value("rectangle.id",get_id().c_str());
 280                 settings.set_value("rectangle.expand",strprintf("%f",get_expand()));
 281                 settings.set_value("rectangle.feather",strprintf("%f",(float)get_feather()));
 282                 settings.set_value("rectangle.invert",get_invert()?"1":"0");
 283                 settings.set_value("rectangle.layer_rectangle",get_layer_rectangle_flag()?"1":"0");
 284                 settings.set_value("rectangle.layer_outline",get_layer_outline_flag()?"1":"0");
 285                 settings.set_value("rectangle.layer_region",get_layer_region_flag()?"1":"0");
 286                 settings.set_value("rectangle.layer_curve_gradient",get_layer_curve_gradient_flag()?"1":"0");
 287                 settings.set_value("rectangle.layer_plant",get_layer_plant_flag()?"1":"0");
 288                 settings.set_value("rectangle.layer_link_origins",get_layer_link_origins_flag()?"1":"0");
 289                 SETTINGS_LOCALE_RESTORE
 290         }
 291         catch(...)
 292         {
 293                 synfig::warning("State Rectangle: Caught exception when attempting to save settings.");
 294         }
 295 }
 296
 297 void
 298 StateRectangle_Context::reset()
 299 {
 300         refresh_ducks();
 301 }
 302
 303 void
 304 StateRectangle_Context::increment_id()
 305 {
 306         String id(get_id());
 307         int number=1;
 308         int digits=0;
 309
 310         if(id.empty())
 311                 id="Rectangle";
 312
 313         // If there is a number
 314         // already at the end of the
 315         // id, then remove it.
 316         if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
 317         {
 318                 // figure out how many digits it is
 319                 for (digits = 0;
 320                          (int)id.size()-1 >= digits && id[id.size()-1-digits] <= '9' && id[id.size()-1-digits] >= '0';
 321                          digits++)
 322                         ;
 323
 324                 String str_number;
 325                 str_number=String(id,id.size()-digits,id.size());
 326                 id=String(id,0,id.size()-digits);
 327
 328                 number=atoi(str_number.c_str());
 329         }
 330         else
 331         {
 332                 number=1;
 333                 digits=3;
 334         }
 335
 336         number++;
 337
 338         // Add the number back onto the id
 339         {
 340                 const String format(strprintf("%%0%dd",digits));
 341                 id+=strprintf(format.c_str(),number);
 342         }
 343
 344         // Set the ID
 345         set_id(id);
 346 }
 347
 348 StateRectangle_Context::StateRectangle_Context(CanvasView* canvas_view):
 349         canvas_view_(canvas_view),
 350         is_working(*canvas_view),
 351         duckmatic_push(get_work_area()),
 352         prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
 353         settings(synfigapp::Main::get_selected_input_device()->settings()),
 354         entry_id(),
 355         adj_expand(0,0,1,0.01,0.1),
 356         adj_feather(0,0,1,0.01,0.1),
 357         spin_expand(adj_expand,0.1,3),
 358         spin_feather(adj_feather,0.1,3),
 359         checkbutton_invert(_("Invert")),
 360         checkbutton_layer_rectangle(_("Create Rectangle Layer")),
 361         checkbutton_layer_region(_("Create Region BLine")),
 362         checkbutton_layer_outline(_("Create Outline BLine")),
 363         checkbutton_layer_curve_gradient(_("Create Curve Gradient BLine")),
 364         checkbutton_layer_plant(_("Create Plant BLine")),
 365         checkbutton_layer_link_origins(_("Link BLine Origins"))
 366 {
 367         egress_on_selection_change=true;
 368         load_settings();
 369
 370         // Set up the tool options dialog
 371         options_table.attach(*manage(new Gtk::Label(_("Rectangle Tool"))),      0, 2,  0,  1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 372         options_table.attach(entry_id,                                                                          0, 2,  1,  2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 373
 374         options_table.attach(checkbutton_layer_rectangle,                                       0, 2,  2,  3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 375         options_table.attach(checkbutton_layer_outline,                                         0, 2,  3,  4, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 376         options_table.attach(checkbutton_layer_region,                                          0, 2,  4,  5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 377         options_table.attach(checkbutton_layer_plant,                                           0, 2,  5,  6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 378         options_table.attach(checkbutton_layer_curve_gradient,                          0, 2,  6,  7, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 379         options_table.attach(checkbutton_layer_link_origins,                            0, 2,  7,  8, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 380
 381         //invert flag
 382         options_table.attach(checkbutton_invert,                                                        0, 2,  8,  9, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 383
 384         //expand stuff
 385         options_table.attach(*manage(new Gtk::Label(_("Expansion:"))),          0, 1,  9, 10, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 386         options_table.attach(spin_expand,                                                                       1, 2,  9, 10, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 387
 388         //feather stuff
 389         options_table.attach(*manage(new Gtk::Label(_("Feather:"))),            0, 1, 10, 11, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 390         options_table.attach(spin_feather,                                                                      1, 2, 10, 11, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 391
 392         options_table.show_all();
 393
 394         //App::dialog_tool_options->set_widget(options_table);
 395         refresh_tool_options();
 396         App::dialog_tool_options->present();
 397
 398         // Turn off layer clicking
 399         get_work_area()->set_allow_layer_clicks(false);
 400
 401         // clear out the ducks
 402         get_work_area()->clear_ducks();
 403
 404         // Refresh the work area
 405         get_work_area()->queue_draw();
 406
 407         get_work_area()->set_cursor(Gdk::DOTBOX);
 408
 409         // Hide the tables if they are showing
 410         //prev_table_status=get_canvas_view()->tables_are_visible();
 411         //if(prev_table_status)get_canvas_view()->hide_tables();
 412
 413         // Disable the time bar
 414         //get_canvas_view()->set_sensitive_timebar(false);
 415
 416         // Connect a signal
 417         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StateRectangle_Context::on_user_click));
 418
 419         App::toolbox->refresh();
 420 }
 421
 422 void
 423 StateRectangle_Context::refresh_tool_options()
 424 {
 425         App::dialog_tool_options->clear();
 426         App::dialog_tool_options->set_widget(options_table);
 427         App::dialog_tool_options->set_local_name(_("Rectangle Tool"));
 428         App::dialog_tool_options->set_name("rectangle");
 429 }
 430
 431 Smach::event_result
 432 StateRectangle_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 433 {
 434         refresh_tool_options();
 435         return Smach::RESULT_ACCEPT;
 436 }
 437
 438 StateRectangle_Context::~StateRectangle_Context()
 439 {
 440         save_settings();
 441
 442         // Restore layer clicking
 443         get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
 444
 445         get_work_area()->reset_cursor();
 446
 447         App::dialog_tool_options->clear();
 448
 449         // Enable the time bar
 450         //get_canvas_view()->set_sensitive_timebar(true);
 451
 452         // Bring back the tables if they were out before
 453         //if(prev_table_status)get_canvas_view()->show_tables();
 454
 455         // Refresh the work area
 456         get_work_area()->queue_draw();
 457
 458         get_canvas_view()->queue_rebuild_ducks();
 459
 460         App::toolbox->refresh();
 461 }
 462
 463 Smach::event_result
 464 StateRectangle_Context::event_stop_handler(const Smach::event& /*x*/)
 465 {
 466         //throw Smach::egress_exception();
 467         throw &state_normal;
 468         return Smach::RESULT_OK;
 469 }
 470
 471 Smach::event_result
 472 StateRectangle_Context::event_refresh_handler(const Smach::event& /*x*/)
 473 {
 474         refresh_ducks();
 475         return Smach::RESULT_ACCEPT;
 476 }
 477
 478 void
 479 StateRectangle_Context::make_rectangle(const Point& _p1, const Point& _p2)
 480 {
 481         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Rectangle"));
 482         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 483
 484         Layer::Handle layer;
 485
 486         Canvas::Handle canvas;
 487         int depth(0);
 488
 489         // we are temporarily using the layer to hold something
 490         layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
 491         if(layer)
 492         {
 493                 depth=layer->get_depth();
 494                 canvas=layer->get_canvas();
 495         }
 496
 497         synfigapp::SelectionManager::LayerList layer_selection;
 498         if (!getenv("SYNFIG_TOOLS_CLEAR_SELECTION"))
 499                 layer_selection = get_canvas_view()->get_selection_manager()->get_selected_layers();
 500
 501         const synfig::TransformStack& transform(get_canvas_view()->get_curr_transform_stack());
 502         const Point p1(transform.unperform(_p1));
 503         const Point p2(transform.unperform(_p2));
 504         Real x_min, x_max, y_min, y_max;
 505         if (p1[0] < p2[0]) { x_min = p1[0]; x_max = p2[0]; } else { x_min = p2[0]; x_max = p1[0]; }
 506         if (p1[1] < p2[1]) { y_min = p1[1]; y_max = p2[1]; } else { y_min = p2[1]; y_max = p1[1]; }
 507         x_min -= get_expand(); x_max += get_expand(); y_min -= get_expand(); y_max += get_expand();
 508
 509         std::vector<BLinePoint> new_list;
 510         for (int i = 0; i < 4; i++)
 511         {
 512                 new_list.push_back(*(new BLinePoint));
 513                 new_list[i].set_width(1);
 514                 new_list[i].set_vertex(Point((i==0||i==3)?x_min:x_max,
 515                                                                          (i==0||i==1)?y_min:y_max));
 516                 new_list[i].set_tangent(Point(0,0));
 517         }
 518
 519         ValueNode_BLine::Handle value_node_bline(ValueNode_BLine::create(new_list));
 520         assert(value_node_bline);
 521
 522         ValueNode_Const::Handle value_node_origin(ValueNode_Const::create(Vector()));
 523         assert(value_node_origin);
 524
 525         // Set the looping flag
 526         value_node_bline->set_loop(true);
 527
 528         if(!canvas)
 529                 canvas=get_canvas_view()->get_canvas();
 530
 531         value_node_bline->set_member_canvas(canvas);
 532
 533         // count how many layers we're going to be creating
 534         int layers_to_create = this->layers_to_create();
 535
 536         ///////////////////////////////////////////////////////////////////////////
 537         //   R E C T A N G L E
 538         ///////////////////////////////////////////////////////////////////////////
 539
 540         if (get_layer_rectangle_flag())
 541         {
 542                 layer=get_canvas_interface()->add_layer_to("rectangle",canvas,depth);
 543                 if (!layer)
 544                 {
 545                         get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
 546                         group.cancel();
 547                         return;
 548                 }
 549                 layer_selection.push_back(layer);
 550
 551                 layer->set_param("point1",p1);
 552                 get_canvas_interface()->signal_layer_param_changed()(layer,"point1");
 553
 554                 layer->set_param("point2",p2);
 555                 get_canvas_interface()->signal_layer_param_changed()(layer,"point2");
 556
 557                 layer->set_param("expand",get_expand());
 558                 get_canvas_interface()->signal_layer_param_changed()(layer,"expand");
 559
 560                 layer->set_param("invert",get_invert());
 561                 get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 562
 563                 layer->set_description(get_id());
 564                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 565         }
 566
 567         ///////////////////////////////////////////////////////////////////////////
 568         //   C U R V E   G R A D I E N T
 569         ///////////////////////////////////////////////////////////////////////////
 570
 571         if(get_layer_curve_gradient_flag())
 572         {
 573                 synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 574
 575                 Layer::Handle layer(get_canvas_interface()->add_layer_to("curve_gradient",canvas,depth));
 576                 if (!layer)
 577                 {
 578                         get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
 579                         group.cancel();
 580                         return;
 581                 }
 582                 layer_selection.push_back(layer);
 583                 layer->set_description(get_id()+_(" Gradient"));
 584                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 585
 586                 {
 587                         synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
 588                         assert(action);
 589
 590                         action->set_param("canvas",get_canvas());
 591                         action->set_param("canvas_interface",get_canvas_interface());
 592                         action->set_param("layer",layer);
 593                         if(!action->set_param("param",String("bline")))
 594                                 synfig::error("LayerParamConnect didn't like \"param\"");
 595                         if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 596                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 597
 598                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 599                         {
 600                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 601                                 group.cancel();
 602                                 throw String(_("Unable to create Gradient layer"));
 603                                 return;
 604                         }
 605                 }
 606
 607                 // only link the curve gradient's origin parameter if the option is selected and we're creating more than one layer
 608                 if (get_layer_link_origins_flag() && layers_to_create > 1)
 609                 {
 610                         synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
 611                         assert(action);
 612
 613                         action->set_param("canvas",get_canvas());
 614                         action->set_param("canvas_interface",get_canvas_interface());
 615                         action->set_param("layer",layer);
 616                         if(!action->set_param("param",String("origin")))
 617                                 synfig::error("LayerParamConnect didn't like \"param\"");
 618                         if(!action->set_param("value_node",ValueNode::Handle(value_node_origin)))
 619                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 620
 621                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 622                         {
 623                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 624                                 group.cancel();
 625                                 throw String(_("Unable to create Gradient layer"));
 626                                 return;
 627                         }
 628                 }
 629         }
 630
 631         ///////////////////////////////////////////////////////////////////////////
 632         //   P L A N T
 633         ///////////////////////////////////////////////////////////////////////////
 634
 635         if(get_layer_plant_flag())
 636         {
 637                 synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 638
 639                 Layer::Handle layer(get_canvas_interface()->add_layer_to("plant",canvas,depth));
 640                 if (!layer)
 641                 {
 642                         get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
 643                         group.cancel();
 644                         return;
 645                 }
 646                 layer_selection.push_back(layer);
 647                 layer->set_description(get_id()+_(" Plant"));
 648                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 649
 650                 {
 651                         synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
 652                         assert(action);
 653
 654                         action->set_param("canvas",get_canvas());
 655                         action->set_param("canvas_interface",get_canvas_interface());
 656                         action->set_param("layer",layer);
 657                         if(!action->set_param("param",String("bline")))
 658                                 synfig::error("LayerParamConnect didn't like \"param\"");
 659                         if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 660                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 661
 662                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 663                         {
 664                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 665                                 group.cancel();
 666                                 throw String(_("Unable to create Plant layer"));
 667                                 return;
 668                         }
 669                 }
 670
 671                 // only link the plant's origin parameter if the option is selected and we're creating more than one layer
 672                 if (get_layer_link_origins_flag() && layers_to_create > 1)
 673                 {
 674                         synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
 675                         assert(action);
 676
 677                         action->set_param("canvas",get_canvas());
 678                         action->set_param("canvas_interface",get_canvas_interface());
 679                         action->set_param("layer",layer);
 680                         if(!action->set_param("param",String("origin")))
 681                                 synfig::error("LayerParamConnect didn't like \"param\"");
 682                         if(!action->set_param("value_node",ValueNode::Handle(value_node_origin)))
 683                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 684
 685                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 686                         {
 687                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 688                                 group.cancel();
 689                                 throw String(_("Unable to create Plant layer"));
 690                                 return;
 691                         }
 692                 }
 693         }
 694
 695         ///////////////////////////////////////////////////////////////////////////
 696         //   R E G I O N
 697         ///////////////////////////////////////////////////////////////////////////
 698
 699         if(get_layer_region_flag())
 700         {
 701                 synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 702
 703                 Layer::Handle layer(get_canvas_interface()->add_layer_to("region",canvas,depth));
 704                 if (!layer)
 705                 {
 706                         get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
 707                         group.cancel();
 708                         return;
 709                 }
 710                 layer_selection.push_back(layer);
 711                 layer->set_description(get_id()+_(" Region"));
 712                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 713
 714                 layer->set_param("feather",get_feather());
 715                 get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
 716
 717                 layer->set_param("invert",get_invert());
 718                 get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 719
 720                 // I don't know if it's safe to reuse the same LayerParamConnect action, so I'm
 721                 // using 2 separate ones.
 722                 {
 723                         synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
 724                         assert(action);
 725
 726                         action->set_param("canvas",get_canvas());
 727                         action->set_param("canvas_interface",get_canvas_interface());
 728                         action->set_param("layer",layer);
 729                         if(!action->set_param("param",String("bline")))
 730                                 synfig::error("LayerParamConnect didn't like \"param\"");
 731                         if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 732                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 733
 734                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 735                         {
 736                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create Region layer"));
 737                                 group.cancel();
 738                                 throw String(_("Unable to create Region layer"));
 739                                 return;
 740                         }
 741                 }
 742
 743                 // only link the region's origin parameter if the option is selected and we're creating more than one layer
 744                 if (get_layer_link_origins_flag() && layers_to_create > 1)
 745                 {
 746                         synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
 747                         assert(action);
 748
 749                         action->set_param("canvas",get_canvas());
 750                         action->set_param("canvas_interface",get_canvas_interface());
 751                         action->set_param("layer",layer);
 752                         if(!action->set_param("param",String("origin")))
 753                                 synfig::error("LayerParamConnect didn't like \"param\"");
 754                         if(!action->set_param("value_node",ValueNode::Handle(value_node_origin)))
 755                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 756
 757                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 758                         {
 759                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create Region layer"));
 760                                 group.cancel();
 761                                 throw String(_("Unable to create Region layer"));
 762                                 return;
 763                         }
 764                 }
 765         }
 766
 767         ///////////////////////////////////////////////////////////////////////////
 768         //   O U T L I N E
 769         ///////////////////////////////////////////////////////////////////////////
 770
 771         if (get_layer_outline_flag())
 772         {
 773                 Layer::Handle layer(get_canvas_interface()->add_layer_to("outline",canvas,depth));
 774                 if (!layer)
 775                 {
 776                         get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
 777                         group.cancel();
 778                         return;
 779                 }
 780                 layer_selection.push_back(layer);
 781                 layer->set_description(get_id()+_(" Outline"));
 782                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 783
 784                 layer->set_param("feather",get_feather());
 785                 get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
 786
 787                 layer->set_param("invert",get_invert());
 788                 get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 789
 790                 {
 791                         synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
 792                         assert(action);
 793
 794                         action->set_param("canvas",get_canvas());
 795                         action->set_param("canvas_interface",get_canvas_interface());
 796                         action->set_param("layer",layer);
 797                         if(!action->set_param("param",String("bline")))
 798                                 synfig::error("LayerParamConnect didn't like \"param\"");
 799                         if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 800                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 801
 802                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 803                         {
 804                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 805                                 group.cancel();
 806                                 throw String(_("Unable to create Outline layer"));
 807                                 return;
 808                         }
 809                 }
 810
 811                 // only link the outline's origin parameter if the option is selected and we're creating more than one layer
 812                 if (get_layer_link_origins_flag() && layers_to_create > 1)
 813                 {
 814                         synfigapp::Action::Handle action(synfigapp::Action::create("LayerParamConnect"));
 815                         assert(action);
 816
 817                         action->set_param("canvas",get_canvas());
 818                         action->set_param("canvas_interface",get_canvas_interface());
 819                         action->set_param("layer",layer);
 820                         if(!action->set_param("param",String("origin")))
 821                                 synfig::error("LayerParamConnect didn't like \"param\"");
 822                         if(!action->set_param("value_node",ValueNode::Handle(value_node_origin)))
 823                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 824
 825                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 826                         {
 827                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 828                                 group.cancel();
 829                                 throw String(_("Unable to create Outline layer"));
 830                                 return;
 831                         }
 832                 }
 833         }
 834
 835         egress_on_selection_change=false;
 836         get_canvas_interface()->get_selection_manager()->clear_selected_layers();
 837         get_canvas_interface()->get_selection_manager()->set_selected_layers(layer_selection);
 838         egress_on_selection_change=true;
 839
 840         //post clean up stuff...
 841         reset();
 842         increment_id();
 843 }
 844
 845 Smach::event_result
 846 StateRectangle_Context::event_mouse_click_handler(const Smach::event& x)
 847 {
 848         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 849
 850         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DOWN && event.button==BUTTON_LEFT)
 851         {
 852                 point_holder=get_work_area()->snap_point_to_grid(event.pos);
 853                 etl::handle<Duck> duck=new Duck();
 854                 duck->set_point(point_holder);
 855                 duck->set_name("p1");
 856                 duck->set_type(Duck::TYPE_POSITION);
 857                 get_work_area()->add_duck(duck);
 858
 859                 point2_duck=new Duck();
 860                 point2_duck->set_point(point_holder);
 861                 point2_duck->set_name("p2");
 862                 point2_duck->set_type(Duck::TYPE_POSITION);
 863                 point2_duck->set_box_duck(duck);
 864                 get_work_area()->add_duck(point2_duck);
 865
 866                 return Smach::RESULT_ACCEPT;
 867         }
 868
 869         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DRAG && event.button==BUTTON_LEFT)
 870         {
 871                 if (!point2_duck) return Smach::RESULT_OK;
 872                 point2_duck->set_point(get_work_area()->snap_point_to_grid(event.pos));
 873                 get_work_area()->queue_draw();
 874                 return Smach::RESULT_ACCEPT;
 875         }
 876
 877         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_UP && event.button==BUTTON_LEFT)
 878         {
 879                 make_rectangle(point_holder, get_work_area()->snap_point_to_grid(event.pos));
 880                 get_work_area()->clear_ducks();
 881                 return Smach::RESULT_ACCEPT;
 882         }
 883
 884         return Smach::RESULT_OK;
 885 }
 886
 887
 888 void
 889 StateRectangle_Context::refresh_ducks()
 890 {
 891         get_work_area()->clear_ducks();
 892         get_work_area()->queue_draw();
 893 }