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 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 108         Widget_Enum             enum_blend;
 109 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 110
 111         Gtk::Adjustment adj_feather;
 112         Gtk::Adjustment adj_number_of_bline_points;
 113         Gtk::Adjustment adj_bline_point_angle_offset;
 114         Gtk::SpinButton spin_feather;
 115         Gtk::SpinButton spin_number_of_bline_points;
 116         Gtk::SpinButton spin_bline_point_angle_offset;
 117
 118         Gtk::CheckButton checkbutton_invert;
 119         Gtk::CheckButton checkbutton_layer_circle;
 120         Gtk::CheckButton checkbutton_layer_region;
 121         Gtk::CheckButton checkbutton_layer_outline;
 122         Gtk::CheckButton checkbutton_layer_curve_gradient;
 123         Gtk::CheckButton checkbutton_layer_plant;
 124         Gtk::CheckButton checkbutton_layer_link_offsets;
 125
 126 public:
 127
 128         // this only counts the layers which use blines - they're the only
 129         // ones we link the offsets for
 130         int layers_to_create()const
 131         {
 132                 return
 133                         get_layer_region_flag() +
 134                         get_layer_outline_flag() +
 135                         get_layer_curve_gradient_flag() +
 136                         get_layer_plant_flag();
 137         }
 138
 139         synfig::String get_id()const { return entry_id.get_text(); }
 140         void set_id(const synfig::String& x) { return entry_id.set_text(x); }
 141
 142         int get_falloff()const { return enum_falloff.get_value(); }
 143         void set_falloff(int x) { return enum_falloff.set_value(x); }
 144
 145 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 146         int get_blend()const { return enum_blend.get_value(); }
 147         void set_blend(int x) { return enum_blend.set_value(x); }
 148 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 149
 150         Real get_feather()const { return adj_feather.get_value(); }
 151         void set_feather(Real f) { adj_feather.set_value(f); }
 152
 153         Real get_number_of_bline_points()const { return adj_number_of_bline_points.get_value(); }
 154         void set_number_of_bline_points(Real f) { adj_number_of_bline_points.set_value(f); }
 155
 156         Real get_bline_point_angle_offset()const { return adj_bline_point_angle_offset.get_value(); }
 157         void set_bline_point_angle_offset(Real f) { adj_bline_point_angle_offset.set_value(f); }
 158
 159         bool get_invert()const { return checkbutton_invert.get_active(); }
 160         void set_invert(bool i) { checkbutton_invert.set_active(i); }
 161
 162         bool get_layer_circle_flag()const { return checkbutton_layer_circle.get_active(); }
 163         void set_layer_circle_flag(bool x) { return checkbutton_layer_circle.set_active(x); }
 164
 165         bool get_layer_region_flag()const { return checkbutton_layer_region.get_active(); }
 166         void set_layer_region_flag(bool x) { return checkbutton_layer_region.set_active(x); }
 167
 168         bool get_layer_outline_flag()const { return checkbutton_layer_outline.get_active(); }
 169         void set_layer_outline_flag(bool x) { return checkbutton_layer_outline.set_active(x); }
 170
 171         bool get_layer_curve_gradient_flag()const { return checkbutton_layer_curve_gradient.get_active(); }
 172         void set_layer_curve_gradient_flag(bool x) { return checkbutton_layer_curve_gradient.set_active(x); }
 173
 174         bool get_layer_plant_flag()const { return checkbutton_layer_plant.get_active(); }
 175         void set_layer_plant_flag(bool x) { return checkbutton_layer_plant.set_active(x); }
 176
 177         bool get_layer_link_offsets_flag()const { return checkbutton_layer_link_offsets.get_active(); }
 178         void set_layer_link_offsets_flag(bool x) { return checkbutton_layer_link_offsets.set_active(x); }
 179
 180         void refresh_tool_options(); //to refresh the toolbox
 181
 182         //events
 183         Smach::event_result event_stop_handler(const Smach::event& x);
 184         Smach::event_result event_refresh_handler(const Smach::event& x);
 185         Smach::event_result event_mouse_click_handler(const Smach::event& x);
 186         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 187
 188         //constructor destructor
 189         StateCircle_Context(CanvasView* canvas_view);
 190         ~StateCircle_Context();
 191
 192         //Canvas interaction
 193         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 194         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 195         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 196         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 197
 198         //Modifying settings etc.
 199         void load_settings();
 200         void save_settings();
 201         void reset();
 202         void increment_id();
 203         bool egress_on_selection_change;
 204         Smach::event_result event_layer_selection_changed_handler(const Smach::event& /*x*/)
 205         {
 206                 if(egress_on_selection_change)
 207                         throw Smach::egress_exception();
 208                 return Smach::RESULT_OK;
 209         }
 210
 211         void make_circle(const Point& p1, const Point& p2);
 212
 213 };      // END of class StateCircle_Context
 214
 215 /* === M E T H O D S ======================================================= */
 216
 217 StateCircle::StateCircle():
 218         Smach::state<StateCircle_Context>("circle")
 219 {
 220         insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StateCircle_Context::event_layer_selection_changed_handler));
 221         insert(event_def(EVENT_STOP,&StateCircle_Context::event_stop_handler));
 222         insert(event_def(EVENT_REFRESH,&StateCircle_Context::event_refresh_handler));
 223         insert(event_def(EVENT_REFRESH_DUCKS,&StateCircle_Context::event_refresh_handler));
 224         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateCircle_Context::event_mouse_click_handler));
 225         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DRAG,&StateCircle_Context::event_mouse_click_handler));
 226         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_UP,&StateCircle_Context::event_mouse_click_handler));
 227         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateCircle_Context::event_refresh_tool_options));
 228 }
 229
 230 StateCircle::~StateCircle()
 231 {
 232 }
 233
 234 void
 235 StateCircle_Context::load_settings()
 236 {
 237         String value;
 238
 239         //parse the arguments yargh!
 240         if(settings.get_value("circle.id",value))
 241                 set_id(value);
 242         else
 243                 set_id("Circle");
 244
 245         if(settings.get_value("circle.fallofftype",value) && value != "")
 246                 set_falloff(atoi(value.c_str()));
 247         else
 248                 set_falloff(2);
 249
 250 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 251         if(settings.get_value("circle.blend",value) && value != "")
 252                 set_blend(atoi(value.c_str()));
 253         else
 254                 set_blend(0);//(int)Color::BLEND_COMPOSITE); //0 should be blend composites value
 255 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 256
 257         if(settings.get_value("circle.feather",value))
 258                 set_feather(atof(value.c_str()));
 259         else
 260                 set_feather(0);
 261
 262         if(settings.get_value("circle.number_of_bline_points",value))
 263                 set_number_of_bline_points(atof(value.c_str()));
 264         else
 265                 set_number_of_bline_points(4);
 266
 267         if(settings.get_value("circle.bline_point_angle_offset",value))
 268                 set_bline_point_angle_offset(atof(value.c_str()));
 269         else
 270                 set_bline_point_angle_offset(0);
 271
 272         if(settings.get_value("circle.invert",value) && value != "0")
 273                 set_invert(true);
 274         else
 275                 set_invert(false);
 276
 277         if(settings.get_value("circle.layer_circle",value) && value=="0")
 278                 set_layer_circle_flag(false);
 279         else
 280                 set_layer_circle_flag(true);
 281
 282         if(settings.get_value("circle.layer_region",value) && value=="1")
 283                 set_layer_region_flag(true);
 284         else
 285                 set_layer_region_flag(false);
 286
 287         if(settings.get_value("circle.layer_outline",value) && value=="1")
 288                 set_layer_outline_flag(true);
 289         else
 290                 set_layer_outline_flag(false);
 291
 292         if(settings.get_value("circle.layer_curve_gradient",value) && value=="1")
 293                 set_layer_curve_gradient_flag(true);
 294         else
 295                 set_layer_curve_gradient_flag(false);
 296
 297         if(settings.get_value("circle.layer_plant",value) && value=="1")
 298                 set_layer_plant_flag(true);
 299         else
 300                 set_layer_plant_flag(false);
 301
 302         if(settings.get_value("circle.layer_link_offsets",value) && value=="0")
 303                 set_layer_link_offsets_flag(false);
 304         else
 305                 set_layer_link_offsets_flag(true);
 306 }
 307
 308 void
 309 StateCircle_Context::save_settings()
 310 {
 311         settings.set_value("circle.id",get_id());
 312         settings.set_value("circle.fallofftype",strprintf("%d",get_falloff()));
 313 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 314         settings.set_value("circle.blend",strprintf("%d",get_blend()));
 315 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 316         settings.set_value("circle.feather",strprintf("%f",(float)get_feather()));
 317         settings.set_value("circle.number_of_bline_points",strprintf("%d",(int)(get_number_of_bline_points() + 0.5)));
 318         settings.set_value("circle.bline_point_angle_offset",strprintf("%f",(float)get_bline_point_angle_offset()));
 319         settings.set_value("circle.invert",get_invert()?"1":"0");
 320         settings.set_value("circle.layer_circle",get_layer_circle_flag()?"1":"0");
 321         settings.set_value("circle.layer_outline",get_layer_outline_flag()?"1":"0");
 322         settings.set_value("circle.layer_region",get_layer_region_flag()?"1":"0");
 323         settings.set_value("circle.layer_curve_gradient",get_layer_curve_gradient_flag()?"1":"0");
 324         settings.set_value("circle.layer_plant",get_layer_plant_flag()?"1":"0");
 325         settings.set_value("circle.layer_link_offsets",get_layer_link_offsets_flag()?"1":"0");
 326 }
 327
 328 void
 329 StateCircle_Context::reset()
 330 {
 331         refresh_ducks();
 332 }
 333
 334 void
 335 StateCircle_Context::increment_id()
 336 {
 337         String id(get_id());
 338         int number=1;
 339         int digits=0;
 340
 341         if(id.empty())
 342                 id="Circle";
 343
 344         // If there is a number
 345         // already at the end of the
 346         // id, then remove it.
 347         if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
 348         {
 349                 // figure out how many digits it is
 350                 for (digits = 0;
 351                          (int)id.size()-1 >= digits && id[id.size()-1-digits] <= '9' && id[id.size()-1-digits] >= '0';
 352                          digits++)
 353                         ;
 354
 355                 String str_number;
 356                 str_number=String(id,id.size()-digits,id.size());
 357                 id=String(id,0,id.size()-digits);
 358
 359                 number=atoi(str_number.c_str());
 360         }
 361         else
 362         {
 363                 number=1;
 364                 digits=3;
 365         }
 366
 367         number++;
 368
 369         // Add the number back onto the id
 370         {
 371                 const String format(strprintf("%%0%dd",digits));
 372                 id+=strprintf(format.c_str(),number);
 373         }
 374
 375         // Set the ID
 376         set_id(id);
 377 }
 378
 379 StateCircle_Context::StateCircle_Context(CanvasView* canvas_view):
 380         canvas_view_(canvas_view),
 381         is_working(*canvas_view),
 382         duckmatic_push(get_work_area()),
 383         prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
 384         settings(synfigapp::Main::get_selected_input_device()->settings()),
 385         entry_id(),
 386         adj_feather(0,0,1,0.01,0.1),
 387         adj_number_of_bline_points(4,2,120,1,1,1), // value, lower, upper, step_increment, page_increment, page_size
 388         adj_bline_point_angle_offset(0,-360,360,.1,1,1), // value, lower, upper, step_increment, page_increment, page_size
 389         spin_feather(adj_feather,0.1,3),
 390         spin_number_of_bline_points(adj_number_of_bline_points,1,0),
 391         spin_bline_point_angle_offset(adj_bline_point_angle_offset,1,1),
 392         checkbutton_invert(_("Invert")),
 393         checkbutton_layer_circle(_("Create Circle Layer")),
 394         checkbutton_layer_region(_("Create Region BLine")),
 395         checkbutton_layer_outline(_("Create Outline BLine")),
 396         checkbutton_layer_curve_gradient(_("Create Curve Gradient BLine")),
 397         checkbutton_layer_plant(_("Create Plant BLine")),
 398         checkbutton_layer_link_offsets(_("Link BLine Offsets"))
 399 {
 400         egress_on_selection_change=true;
 401         // Set up the tool options dialog
 402         options_table.attach(*manage(new Gtk::Label(_("Circle Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 403         options_table.attach(entry_id,                                                                  0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 404
 405         enum_falloff.set_param_desc(ParamDesc("falloff")
 406                 .set_local_name(_("Falloff"))
 407                 .set_description(_("Determines the falloff function for the feather"))
 408                 .set_hint("enum")
 409                 .add_enum_value(CIRCLE_INTERPOLATION_LINEAR,"linear",_("Linear"))
 410                 .add_enum_value(CIRCLE_SQUARED,"squared",_("Squared"))
 411                 .add_enum_value(CIRCLE_SQRT,"sqrt",_("Square Root"))
 412                 .add_enum_value(CIRCLE_SIGMOND,"sigmond",_("Sigmond"))
 413                 .add_enum_value(CIRCLE_COSINE,"cosine",_("Cosine")));
 414
 415 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 416         enum_blend.set_param_desc(ParamDesc(Color::BLEND_COMPOSITE,"blend_method")
 417                 .set_local_name(_("Blend Method"))
 418                 .set_description(_("Defines the blend method to be used for circles")));
 419 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 420
 421         load_settings();
 422
 423         //feather stuff
 424         options_table.attach(*manage(new Gtk::Label(_("Feather:"))), 0, 1, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 425         options_table.attach(spin_feather, 1, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 426         options_table.attach(enum_falloff, 0, 2, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 427 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 428         options_table.attach(enum_blend, 0, 2, 5, 6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 429 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 430         options_table.attach(checkbutton_invert,                                        0, 2,  6,  7, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 431         options_table.attach(checkbutton_layer_circle,                          0, 2,  7,  8, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 432         options_table.attach(checkbutton_layer_outline,                         0, 2,  8,  9, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 433         options_table.attach(checkbutton_layer_region,                          0, 2,  9, 10, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 434         options_table.attach(checkbutton_layer_plant,                           0, 2, 10, 11, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 435         options_table.attach(checkbutton_layer_curve_gradient,          0, 2, 11, 12, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 436         options_table.attach(checkbutton_layer_link_offsets,            0, 2, 12, 13, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 437         options_table.attach(*manage(new Gtk::Label(_("BLine Points:"))), 0, 1, 13, 14, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 438         options_table.attach(spin_number_of_bline_points, 1, 2, 13, 14, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 439         options_table.attach(*manage(new Gtk::Label(_("Point Angle Offset:"))), 0, 1, 14, 15, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 440         options_table.attach(spin_bline_point_angle_offset, 1, 2, 14, 15, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 441
 442         options_table.show_all();
 443
 444         refresh_tool_options();
 445         App::dialog_tool_options->present();
 446
 447         // Turn off layer clicking
 448         get_work_area()->set_allow_layer_clicks(false);
 449
 450         // clear out the ducks
 451         get_work_area()->clear_ducks();
 452
 453         // Refresh the work area
 454         get_work_area()->queue_draw();
 455
 456         // Hide the tables if they are showing
 457         //prev_table_status=get_canvas_view()->tables_are_visible();
 458         //if(prev_table_status)get_canvas_view()->hide_tables();
 459
 460         // Disable the time bar
 461         //get_canvas_view()->set_sensitive_timebar(false);
 462
 463         // Connect a signal
 464         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StateCircle_Context::on_user_click));
 465         get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 466
 467         App::toolbox->refresh();
 468 }
 469
 470 void
 471 StateCircle_Context::refresh_tool_options()
 472 {
 473         App::dialog_tool_options->clear();
 474         App::dialog_tool_options->set_widget(options_table);
 475         App::dialog_tool_options->set_local_name(_("Circle Tool"));
 476         App::dialog_tool_options->set_name("circle");
 477 }
 478
 479 Smach::event_result
 480 StateCircle_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 481 {
 482         refresh_tool_options();
 483         return Smach::RESULT_ACCEPT;
 484 }
 485
 486 StateCircle_Context::~StateCircle_Context()
 487 {
 488         save_settings();
 489
 490         // Restore layer clicking
 491         get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
 492         get_canvas_view()->work_area->reset_cursor();
 493
 494         App::dialog_tool_options->clear();
 495
 496         // Enable the time bar
 497         //get_canvas_view()->set_sensitive_timebar(true);
 498
 499         // Bring back the tables if they were out before
 500         //if(prev_table_status)get_canvas_view()->show_tables();
 501
 502         // Refresh the work area
 503         get_work_area()->queue_draw();
 504
 505         get_canvas_view()->queue_rebuild_ducks();
 506
 507         App::toolbox->refresh();
 508 }
 509
 510 Smach::event_result
 511 StateCircle_Context::event_stop_handler(const Smach::event& /*x*/)
 512 {
 513         throw Smach::egress_exception();
 514 }
 515
 516 Smach::event_result
 517 StateCircle_Context::event_refresh_handler(const Smach::event& /*x*/)
 518 {
 519         refresh_ducks();
 520         return Smach::RESULT_ACCEPT;
 521 }
 522
 523 void
 524 StateCircle_Context::make_circle(const Point& _p1, const Point& _p2)
 525 {
 526         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Circle"));
 527         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 528
 529         Layer::Handle layer;
 530
 531         Canvas::Handle canvas;
 532         int depth(0);
 533
 534         // we are temporarily using the layer to hold something
 535         layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
 536         if(layer)
 537         {
 538                 depth=layer->get_depth();
 539                 canvas=layer->get_canvas();
 540         }
 541
 542         synfigapp::SelectionManager::LayerList layer_selection;
 543         if (!getenv("SYNFIG_TOOLS_CLEAR_SELECTION"))
 544                 layer_selection = get_canvas_view()->get_selection_manager()->get_selected_layers();
 545
 546         const synfig::TransformStack& transform(get_canvas_view()->get_curr_transform_stack());
 547         const Point p1(transform.unperform(_p1));
 548         const Point p2(transform.unperform(_p2));
 549
 550         Real radius((p2-p1).mag());
 551         int points = get_number_of_bline_points();
 552         Angle::deg offset(get_bline_point_angle_offset());
 553         Angle::deg angle(360.0/points);
 554         Real tangent(4 * ((points == 2)
 555                                           ? 1
 556                                           : ((2 * Angle::cos(angle/2).get() - Angle::cos(angle).get() - 1) / Angle::sin(angle).get())));
 557         Real x(p1[0]), y(p1[1]);
 558
 559         std::vector<BLinePoint> new_list;
 560         for (int i = 0; i < points; i++)
 561         {
 562                 new_list.push_back(*(new BLinePoint));
 563                 new_list[i].set_width(1);
 564                 new_list[i].set_vertex(Point(radius*Angle::cos(angle*i + offset).get() + x,
 565                                                                          radius*Angle::sin(angle*i + offset).get() + y));
 566                 new_list[i].set_tangent(Point(-radius*tangent*Angle::sin(angle*i + offset).get(),
 567                                                                            radius*tangent*Angle::cos(angle*i + offset).get()));
 568         }
 569
 570         ValueNode_BLine::Handle value_node_bline(ValueNode_BLine::create(new_list));
 571         assert(value_node_bline);
 572
 573         ValueNode_Const::Handle value_node_offset(ValueNode_Const::create(Vector()));
 574         assert(value_node_offset);
 575
 576         // Set the looping flag
 577         value_node_bline->set_loop(true);
 578
 579         if(!canvas)
 580                 canvas=get_canvas_view()->get_canvas();
 581
 582         value_node_bline->set_member_canvas(canvas);
 583
 584         // count how many layers we're going to be creating
 585         int layers_to_create = this->layers_to_create();
 586
 587         ///////////////////////////////////////////////////////////////////////////
 588         //   C I R C L E
 589         ///////////////////////////////////////////////////////////////////////////
 590
 591         if (get_layer_circle_flag() &&
 592                 get_falloff() >= 0 && get_falloff() < CIRCLE_NUM_FALLOFF)
 593         {
 594                 layer=get_canvas_interface()->add_layer_to("circle",canvas,depth);
 595                 layer_selection.push_back(layer);
 596
 597                 layer->set_param("pos",p1);
 598                 get_canvas_interface()->signal_layer_param_changed()(layer,"pos");
 599
 600                 layer->set_param("radius",(p2-p1).mag());
 601                 get_canvas_interface()->signal_layer_param_changed()(layer,"radius");
 602
 603                 layer->set_param("falloff",get_falloff());
 604                 get_canvas_interface()->signal_layer_param_changed()(layer,"falloff");
 605
 606                 layer->set_param("feather",get_feather());
 607                 get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
 608
 609                 layer->set_param("invert",get_invert());
 610                 get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 611
 612 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 613                 layer->set_param("blend_method",get_blend());
 614                 get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
 615 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 616
 617                 layer->set_description(get_id());
 618                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 619         }
 620
 621         ///////////////////////////////////////////////////////////////////////////
 622         //   C U R V E   G R A D I E N T
 623         ///////////////////////////////////////////////////////////////////////////
 624
 625         if(get_layer_curve_gradient_flag())
 626         {
 627                 synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 628
 629                 Layer::Handle layer(get_canvas_interface()->add_layer_to("curve_gradient",canvas,depth));
 630                 assert(layer);
 631                 layer_selection.push_back(layer);
 632                 layer->set_description(get_id()+_(" Gradient"));
 633                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 634
 635 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 636                 layer->set_param("blend_method",get_blend());
 637                 get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
 638 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 639
 640                 {
 641                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 642                         assert(action);
 643
 644                         action->set_param("canvas",get_canvas());
 645                         action->set_param("canvas_interface",get_canvas_interface());
 646                         action->set_param("layer",layer);
 647                         if(!action->set_param("param",String("bline")))
 648                                 synfig::error("LayerParamConnect didn't like \"param\"");
 649                         if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 650                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 651
 652                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 653                         {
 654                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 655                                 group.cancel();
 656                                 throw String(_("Unable to create Gradient layer"));
 657                                 return;
 658                         }
 659                 }
 660
 661                 // only link the curve gradient's offset parameter if the option is selected and we're creating more than one layer
 662                 if (get_layer_link_offsets_flag() && layers_to_create > 1)
 663                 {
 664                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 665                         assert(action);
 666
 667                         action->set_param("canvas",get_canvas());
 668                         action->set_param("canvas_interface",get_canvas_interface());
 669                         action->set_param("layer",layer);
 670                         if(!action->set_param("param",String("offset")))
 671                                 synfig::error("LayerParamConnect didn't like \"param\"");
 672                         if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
 673                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 674
 675                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 676                         {
 677                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 678                                 group.cancel();
 679                                 throw String(_("Unable to create Gradient layer"));
 680                                 return;
 681                         }
 682                 }
 683         }
 684
 685         ///////////////////////////////////////////////////////////////////////////
 686         //   P L A N T
 687         ///////////////////////////////////////////////////////////////////////////
 688
 689         if(get_layer_plant_flag())
 690         {
 691                 synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 692
 693                 Layer::Handle layer(get_canvas_interface()->add_layer_to("plant",canvas,depth));
 694                 assert(layer);
 695                 layer_selection.push_back(layer);
 696                 layer->set_description(get_id()+_(" Plant"));
 697                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 698
 699 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 700                 layer->set_param("blend_method",get_blend());
 701                 get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
 702 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 703
 704                 {
 705                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 706                         assert(action);
 707
 708                         action->set_param("canvas",get_canvas());
 709                         action->set_param("canvas_interface",get_canvas_interface());
 710                         action->set_param("layer",layer);
 711                         if(!action->set_param("param",String("bline")))
 712                                 synfig::error("LayerParamConnect didn't like \"param\"");
 713                         if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 714                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 715
 716                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 717                         {
 718                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 719                                 group.cancel();
 720                                 throw String(_("Unable to create Plant layer"));
 721                                 return;
 722                         }
 723                 }
 724
 725                 // only link the plant's offset parameter if the option is selected and we're creating more than one layer
 726                 if (get_layer_link_offsets_flag() && layers_to_create > 1)
 727                 {
 728                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 729                         assert(action);
 730
 731                         action->set_param("canvas",get_canvas());
 732                         action->set_param("canvas_interface",get_canvas_interface());
 733                         action->set_param("layer",layer);
 734                         if(!action->set_param("param",String("offset")))
 735                                 synfig::error("LayerParamConnect didn't like \"param\"");
 736                         if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
 737                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 738
 739                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 740                         {
 741                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 742                                 group.cancel();
 743                                 throw String(_("Unable to create Plant layer"));
 744                                 return;
 745                         }
 746                 }
 747         }
 748
 749         ///////////////////////////////////////////////////////////////////////////
 750         //   R E G I O N
 751         ///////////////////////////////////////////////////////////////////////////
 752
 753         if(get_layer_region_flag())
 754         {
 755                 synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 756
 757                 Layer::Handle layer(get_canvas_interface()->add_layer_to("region",canvas,depth));
 758                 assert(layer);
 759                 layer_selection.push_back(layer);
 760                 layer->set_description(get_id()+_(" Region"));
 761                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 762
 763 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 764                 layer->set_param("blend_method",get_blend());
 765                 get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
 766 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 767
 768                 layer->set_param("feather",get_feather());
 769                 get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
 770
 771                 layer->set_param("invert",get_invert());
 772                 get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 773
 774                 if(get_layer_outline_flag())
 775                         layer->set_param("color",synfigapp::Main::get_background_color());
 776
 777                 // I don't know if it's safe to reuse the same layer_param_connect action, so I'm
 778                 // using 2 separate ones.
 779                 {
 780                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 781                         assert(action);
 782
 783                         action->set_param("canvas",get_canvas());
 784                         action->set_param("canvas_interface",get_canvas_interface());
 785                         action->set_param("layer",layer);
 786                         if(!action->set_param("param",String("bline")))
 787                                 synfig::error("LayerParamConnect didn't like \"param\"");
 788                         if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 789                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 790
 791                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 792                         {
 793                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create Region layer"));
 794                                 group.cancel();
 795                                 throw String(_("Unable to create Region layer"));
 796                                 return;
 797                         }
 798                 }
 799
 800                 // only link the region's offset parameter if the option is selected and we're creating more than one layer
 801                 if (get_layer_link_offsets_flag() && layers_to_create > 1)
 802                 {
 803                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 804                         assert(action);
 805
 806                         action->set_param("canvas",get_canvas());
 807                         action->set_param("canvas_interface",get_canvas_interface());
 808                         action->set_param("layer",layer);
 809                         if(!action->set_param("param",String("offset")))
 810                                 synfig::error("LayerParamConnect didn't like \"param\"");
 811                         if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
 812                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 813
 814                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 815                         {
 816                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create Region layer"));
 817                                 group.cancel();
 818                                 throw String(_("Unable to create Region layer"));
 819                                 return;
 820                         }
 821                 }
 822         }
 823
 824         ///////////////////////////////////////////////////////////////////////////
 825         //   O U T L I N E
 826         ///////////////////////////////////////////////////////////////////////////
 827
 828         if (get_layer_outline_flag())
 829         {
 830                 Layer::Handle layer(get_canvas_interface()->add_layer_to("outline",canvas,depth));
 831                 assert(layer);
 832                 layer_selection.push_back(layer);
 833                 layer->set_description(get_id()+_(" Outline"));
 834                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 835
 836 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 837                 layer->set_param("blend_method",get_blend());
 838                 get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
 839 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 840
 841                 layer->set_param("feather",get_feather());
 842                 get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
 843
 844                 layer->set_param("invert",get_invert());
 845                 get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 846
 847                 {
 848                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 849                         assert(action);
 850
 851                         action->set_param("canvas",get_canvas());
 852                         action->set_param("canvas_interface",get_canvas_interface());
 853                         action->set_param("layer",layer);
 854                         if(!action->set_param("param",String("bline")))
 855                                 synfig::error("LayerParamConnect didn't like \"param\"");
 856                         if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 857                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 858
 859                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 860                         {
 861                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 862                                 group.cancel();
 863                                 throw String(_("Unable to create Outline layer"));
 864                                 return;
 865                         }
 866                 }
 867
 868                 // only link the outline's offset parameter if the option is selected and we're creating more than one layer
 869                 if (get_layer_link_offsets_flag() && layers_to_create > 1)
 870                 {
 871                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 872                         assert(action);
 873
 874                         action->set_param("canvas",get_canvas());
 875                         action->set_param("canvas_interface",get_canvas_interface());
 876                         action->set_param("layer",layer);
 877                         if(!action->set_param("param",String("offset")))
 878                                 synfig::error("LayerParamConnect didn't like \"param\"");
 879                         if(!action->set_param("value_node",ValueNode::Handle(value_node_offset)))
 880                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 881
 882                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 883                         {
 884                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 885                                 group.cancel();
 886                                 throw String(_("Unable to create Outline layer"));
 887                                 return;
 888                         }
 889                 }
 890         }
 891
 892         egress_on_selection_change=false;
 893         get_canvas_interface()->get_selection_manager()->clear_selected_layers();
 894         get_canvas_interface()->get_selection_manager()->set_selected_layers(layer_selection);
 895         egress_on_selection_change=true;
 896
 897         reset();
 898         increment_id();
 899 }
 900
 901 Smach::event_result
 902 StateCircle_Context::event_mouse_click_handler(const Smach::event& x)
 903 {
 904         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 905
 906         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DOWN && event.button==BUTTON_LEFT)
 907         {
 908                 point_holder=get_work_area()->snap_point_to_grid(event.pos);
 909                 etl::handle<Duck> duck=new Duck();
 910                 duck->set_point(point_holder);
 911                 duck->set_name("p1");
 912                 duck->set_type(Duck::TYPE_POSITION);
 913                 duck->set_editable(false);
 914                 get_work_area()->add_duck(duck);
 915
 916                 point2_duck=new Duck();
 917                 point2_duck->set_point(Vector(0,0));
 918                 point2_duck->set_name("radius");
 919                 point2_duck->set_origin(duck);
 920                 point2_duck->set_radius(true);
 921                 point2_duck->set_scalar(-1);
 922                 point2_duck->set_type(Duck::TYPE_RADIUS);
 923                 point2_duck->set_hover(true);
 924                 get_work_area()->add_duck(point2_duck);
 925
 926                 return Smach::RESULT_ACCEPT;
 927         }
 928
 929         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DRAG && event.button==BUTTON_LEFT)
 930         {
 931                 point2_duck->set_point(point_holder-get_work_area()->snap_point_to_grid(event.pos));
 932                 get_work_area()->queue_draw();
 933                 return Smach::RESULT_ACCEPT;
 934         }
 935
 936         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_UP && event.button==BUTTON_LEFT)
 937         {
 938                 Point point(get_work_area()->snap_point_to_grid(event.pos));
 939
 940                 if (App::restrict_radius_ducks)
 941                 {
 942                         if ((point[0] - point_holder[0]) < 0) point[0] = point_holder[0];
 943                         if ((point[1] - point_holder[1]) < 0) point[1] = point_holder[1];
 944                 }
 945
 946                 make_circle(point_holder, point);
 947                 get_work_area()->clear_ducks();
 948                 return Smach::RESULT_ACCEPT;
 949         }
 950
 951         return Smach::RESULT_OK;
 952 }
 953
 954
 955 void
 956 StateCircle_Context::refresh_ducks()
 957 {
 958         get_work_area()->clear_ducks();
 959         get_work_area()->queue_draw();
 960 }