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

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