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_origins;
 125
 126 public:
 127
 128         // this only counts the layers which use blines - they're the only
 129         // ones we link the origins for
 130         int layers_to_create()const
 131         {
 132                 return
 133                         get_layer_circle_flag() +
 134                         get_layer_region_flag() +
 135                         get_layer_outline_flag() +
 136                         get_layer_curve_gradient_flag() +
 137                         get_layer_plant_flag();
 138         }
 139
 140         synfig::String get_id()const { return entry_id.get_text(); }
 141         void set_id(const synfig::String& x) { return entry_id.set_text(x); }
 142
 143         int get_falloff()const { return enum_falloff.get_value(); }
 144         void set_falloff(int x) { return enum_falloff.set_value(x); }
 145
 146 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 147         int get_blend()const { return enum_blend.get_value(); }
 148         void set_blend(int x) { return enum_blend.set_value(x); }
 149 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 150
 151         Real get_feather()const { return adj_feather.get_value(); }
 152         void set_feather(Real f) { adj_feather.set_value(f); }
 153
 154         Real get_number_of_bline_points()const { return adj_number_of_bline_points.get_value(); }
 155         void set_number_of_bline_points(Real f) { adj_number_of_bline_points.set_value(f); }
 156
 157         Real get_bline_point_angle_offset()const { return adj_bline_point_angle_offset.get_value(); }
 158         void set_bline_point_angle_offset(Real f) { adj_bline_point_angle_offset.set_value(f); }
 159
 160         bool get_invert()const { return checkbutton_invert.get_active(); }
 161         void set_invert(bool i) { checkbutton_invert.set_active(i); }
 162
 163         bool get_layer_circle_flag()const { return checkbutton_layer_circle.get_active(); }
 164         void set_layer_circle_flag(bool x) { return checkbutton_layer_circle.set_active(x); }
 165
 166         bool get_layer_region_flag()const { return checkbutton_layer_region.get_active(); }
 167         void set_layer_region_flag(bool x) { return checkbutton_layer_region.set_active(x); }
 168
 169         bool get_layer_outline_flag()const { return checkbutton_layer_outline.get_active(); }
 170         void set_layer_outline_flag(bool x) { return checkbutton_layer_outline.set_active(x); }
 171
 172         bool get_layer_curve_gradient_flag()const { return checkbutton_layer_curve_gradient.get_active(); }
 173         void set_layer_curve_gradient_flag(bool x) { return checkbutton_layer_curve_gradient.set_active(x); }
 174
 175         bool get_layer_plant_flag()const { return checkbutton_layer_plant.get_active(); }
 176         void set_layer_plant_flag(bool x) { return checkbutton_layer_plant.set_active(x); }
 177
 178         bool get_layer_link_origins_flag()const { return checkbutton_layer_link_origins.get_active(); }
 179         void set_layer_link_origins_flag(bool x) { return checkbutton_layer_link_origins.set_active(x); }
 180
 181         void refresh_tool_options(); //to refresh the toolbox
 182
 183         //events
 184         Smach::event_result event_stop_handler(const Smach::event& x);
 185         Smach::event_result event_refresh_handler(const Smach::event& x);
 186         Smach::event_result event_mouse_click_handler(const Smach::event& x);
 187         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 188
 189         //constructor destructor
 190         StateCircle_Context(CanvasView* canvas_view);
 191         ~StateCircle_Context();
 192
 193         //Canvas interaction
 194         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 195         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 196         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 197         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 198
 199         //Modifying settings etc.
 200         void load_settings();
 201         void save_settings();
 202         void reset();
 203         void increment_id();
 204         bool egress_on_selection_change;
 205         Smach::event_result event_layer_selection_changed_handler(const Smach::event& /*x*/)
 206         {
 207                 if(egress_on_selection_change)
 208                         throw Smach::egress_exception();
 209                 return Smach::RESULT_OK;
 210         }
 211
 212         void make_circle(const Point& p1, const Point& p2);
 213
 214 };      // END of class StateCircle_Context
 215
 216 /* === M E T H O D S ======================================================= */
 217
 218 StateCircle::StateCircle():
 219         Smach::state<StateCircle_Context>("circle")
 220 {
 221         insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StateCircle_Context::event_layer_selection_changed_handler));
 222         insert(event_def(EVENT_STOP,&StateCircle_Context::event_stop_handler));
 223         insert(event_def(EVENT_REFRESH,&StateCircle_Context::event_refresh_handler));
 224         insert(event_def(EVENT_REFRESH_DUCKS,&StateCircle_Context::event_refresh_handler));
 225         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateCircle_Context::event_mouse_click_handler));
 226         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DRAG,&StateCircle_Context::event_mouse_click_handler));
 227         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_UP,&StateCircle_Context::event_mouse_click_handler));
 228         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateCircle_Context::event_refresh_tool_options));
 229 }
 230
 231 StateCircle::~StateCircle()
 232 {
 233 }
 234
 235 void
 236 StateCircle_Context::load_settings()
 237 {
 238         String value;
 239
 240         //parse the arguments yargh!
 241         if(settings.get_value("circle.id",value))
 242                 set_id(value);
 243         else
 244                 set_id("Circle");
 245
 246         if(settings.get_value("circle.fallofftype",value) && value != "")
 247                 set_falloff(atoi(value.c_str()));
 248         else
 249                 set_falloff(2);
 250
 251 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 252         if(settings.get_value("circle.blend",value) && value != "")
 253                 set_blend(atoi(value.c_str()));
 254         else
 255                 set_blend(0);//(int)Color::BLEND_COMPOSITE); //0 should be blend composites value
 256 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 257
 258         if(settings.get_value("circle.feather",value))
 259                 set_feather(atof(value.c_str()));
 260         else
 261                 set_feather(0);
 262
 263         if(settings.get_value("circle.number_of_bline_points",value))
 264                 set_number_of_bline_points(atof(value.c_str()));
 265         else
 266                 set_number_of_bline_points(4);
 267
 268         if(settings.get_value("circle.bline_point_angle_offset",value))
 269                 set_bline_point_angle_offset(atof(value.c_str()));
 270         else
 271                 set_bline_point_angle_offset(0);
 272
 273         if(settings.get_value("circle.invert",value) && value != "0")
 274                 set_invert(true);
 275         else
 276                 set_invert(false);
 277
 278         if(settings.get_value("circle.layer_circle",value) && value=="0")
 279                 set_layer_circle_flag(false);
 280         else
 281                 set_layer_circle_flag(true);
 282
 283         if(settings.get_value("circle.layer_region",value) && value=="1")
 284                 set_layer_region_flag(true);
 285         else
 286                 set_layer_region_flag(false);
 287
 288         if(settings.get_value("circle.layer_outline",value) && value=="1")
 289                 set_layer_outline_flag(true);
 290         else
 291                 set_layer_outline_flag(false);
 292
 293         if(settings.get_value("circle.layer_curve_gradient",value) && value=="1")
 294                 set_layer_curve_gradient_flag(true);
 295         else
 296                 set_layer_curve_gradient_flag(false);
 297
 298         if(settings.get_value("circle.layer_plant",value) && value=="1")
 299                 set_layer_plant_flag(true);
 300         else
 301                 set_layer_plant_flag(false);
 302
 303         if(settings.get_value("circle.layer_link_origins",value) && value=="0")
 304                 set_layer_link_origins_flag(false);
 305         else
 306                 set_layer_link_origins_flag(true);
 307 }
 308
 309 void
 310 StateCircle_Context::save_settings()
 311 {
 312         settings.set_value("circle.id",get_id());
 313         settings.set_value("circle.fallofftype",strprintf("%d",get_falloff()));
 314 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 315         settings.set_value("circle.blend",strprintf("%d",get_blend()));
 316 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 317         settings.set_value("circle.feather",strprintf("%f",(float)get_feather()));
 318         settings.set_value("circle.number_of_bline_points",strprintf("%d",(int)(get_number_of_bline_points() + 0.5)));
 319         settings.set_value("circle.bline_point_angle_offset",strprintf("%f",(float)get_bline_point_angle_offset()));
 320         settings.set_value("circle.invert",get_invert()?"1":"0");
 321         settings.set_value("circle.layer_circle",get_layer_circle_flag()?"1":"0");
 322         settings.set_value("circle.layer_outline",get_layer_outline_flag()?"1":"0");
 323         settings.set_value("circle.layer_region",get_layer_region_flag()?"1":"0");
 324         settings.set_value("circle.layer_curve_gradient",get_layer_curve_gradient_flag()?"1":"0");
 325         settings.set_value("circle.layer_plant",get_layer_plant_flag()?"1":"0");
 326         settings.set_value("circle.layer_link_origins",get_layer_link_origins_flag()?"1":"0");
 327 }
 328
 329 void
 330 StateCircle_Context::reset()
 331 {
 332         refresh_ducks();
 333 }
 334
 335 void
 336 StateCircle_Context::increment_id()
 337 {
 338         String id(get_id());
 339         int number=1;
 340         int digits=0;
 341
 342         if(id.empty())
 343                 id="Circle";
 344
 345         // If there is a number
 346         // already at the end of the
 347         // id, then remove it.
 348         if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
 349         {
 350                 // figure out how many digits it is
 351                 for (digits = 0;
 352                          (int)id.size()-1 >= digits && id[id.size()-1-digits] <= '9' && id[id.size()-1-digits] >= '0';
 353                          digits++)
 354                         ;
 355
 356                 String str_number;
 357                 str_number=String(id,id.size()-digits,id.size());
 358                 id=String(id,0,id.size()-digits);
 359
 360                 number=atoi(str_number.c_str());
 361         }
 362         else
 363         {
 364                 number=1;
 365                 digits=3;
 366         }
 367
 368         number++;
 369
 370         // Add the number back onto the id
 371         {
 372                 const String format(strprintf("%%0%dd",digits));
 373                 id+=strprintf(format.c_str(),number);
 374         }
 375
 376         // Set the ID
 377         set_id(id);
 378 }
 379
 380 StateCircle_Context::StateCircle_Context(CanvasView* canvas_view):
 381         canvas_view_(canvas_view),
 382         is_working(*canvas_view),
 383         duckmatic_push(get_work_area()),
 384         prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
 385         settings(synfigapp::Main::get_selected_input_device()->settings()),
 386         entry_id(),                             //   value lower upper  step page
 387         adj_feather(                                    0,    0,    1, 0.01, 0.1),
 388         adj_number_of_bline_points(             0,    2,  120, 1   , 1  ),
 389         adj_bline_point_angle_offset(   0, -360,  360, 0.1 , 1  ),
 390         spin_feather(adj_feather,0.1,3),
 391         spin_number_of_bline_points(adj_number_of_bline_points,1,0),
 392         spin_bline_point_angle_offset(adj_bline_point_angle_offset,1,1),
 393         checkbutton_invert(_("Invert")),
 394         checkbutton_layer_circle(_("Create Circle Layer")),
 395         checkbutton_layer_region(_("Create Region BLine")),
 396         checkbutton_layer_outline(_("Create Outline BLine")),
 397         checkbutton_layer_curve_gradient(_("Create Curve Gradient BLine")),
 398         checkbutton_layer_plant(_("Create Plant BLine")),
 399         checkbutton_layer_link_origins(_("Link Origins"))
 400 {
 401         egress_on_selection_change=true;
 402
 403         // Set up the tool options dialog
 404         enum_falloff.set_param_desc(ParamDesc("falloff")
 405                 .set_local_name(_("Falloff"))
 406                 .set_description(_("Determines the falloff function for the feather"))
 407                 .set_hint("enum")
 408                 .add_enum_value(CIRCLE_INTERPOLATION_LINEAR,"linear",_("Linear"))
 409                 .add_enum_value(CIRCLE_SQUARED,"squared",_("Squared"))
 410                 .add_enum_value(CIRCLE_SQRT,"sqrt",_("Square Root"))
 411                 .add_enum_value(CIRCLE_SIGMOND,"sigmond",_("Sigmond"))
 412                 .add_enum_value(CIRCLE_COSINE,"cosine",_("Cosine")));
 413
 414 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 415         enum_blend.set_param_desc(ParamDesc(Color::BLEND_COMPOSITE,"blend_method")
 416                 .set_local_name(_("Blend Method"))
 417                 .set_description(_("Defines the blend method to be used for circles")));
 418 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 419
 420         load_settings();
 421
 422         options_table.attach(*manage(new Gtk::Label(_("Circle Tool"))),         0, 2,  0,  1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 423         options_table.attach(entry_id,                                                                          0, 2,  1,  2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 424
 425         options_table.attach(checkbutton_layer_circle,                                          0, 2,  2,  3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 426         options_table.attach(checkbutton_layer_outline,                                         0, 2,  3,  4, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 427         options_table.attach(checkbutton_layer_region,                                          0, 2,  4,  5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 428         options_table.attach(checkbutton_layer_plant,                                           0, 2,  5,  6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 429         options_table.attach(checkbutton_layer_curve_gradient,                          0, 2,  6,  7, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 430         options_table.attach(checkbutton_layer_link_origins,                            0, 2,  7,  8, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 431
 432         //invert flag
 433         options_table.attach(checkbutton_invert,                                                0, 2,  8,  9, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 434
 435         options_table.attach(*manage(new Gtk::Label(_("Falloff:"))),            0, 1,  9, 10, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 436         options_table.attach(enum_falloff,                                      1, 2,  9, 10, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 437
 438         //feather stuff
 439         options_table.attach(*manage(new Gtk::Label(_("Feather:"))),            0, 1, 10, 11, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 440         options_table.attach(spin_feather,                                                              1, 2, 10, 11, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 441
 442 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 443         options_table.attach(enum_blend,                                        0, 2, 11, 12, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 444 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 445
 446         options_table.attach(*manage(new Gtk::Label(_("BLine Points:"))),       0, 1, 12, 13, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 447         options_table.attach(spin_number_of_bline_points,                                       1, 2, 12, 13, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 448
 449 options_table.attach(*manage(new Gtk::Label(_("Point Angle Offset:"))), 0, 1, 13, 14, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 450         options_table.attach(spin_bline_point_angle_offset,                                     1, 2, 13, 14, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 451
 452         options_table.show_all();
 453
 454         refresh_tool_options();
 455         App::dialog_tool_options->present();
 456
 457         // Turn off layer clicking
 458         get_work_area()->set_allow_layer_clicks(false);
 459
 460         // clear out the ducks
 461         get_work_area()->clear_ducks();
 462
 463         // Refresh the work area
 464         get_work_area()->queue_draw();
 465
 466         // Hide the tables if they are showing
 467         //prev_table_status=get_canvas_view()->tables_are_visible();
 468         //if(prev_table_status)get_canvas_view()->hide_tables();
 469
 470         // Disable the time bar
 471         //get_canvas_view()->set_sensitive_timebar(false);
 472
 473         // Connect a signal
 474         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StateCircle_Context::on_user_click));
 475         get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 476
 477         App::toolbox->refresh();
 478 }
 479
 480 void
 481 StateCircle_Context::refresh_tool_options()
 482 {
 483         App::dialog_tool_options->clear();
 484         App::dialog_tool_options->set_widget(options_table);
 485         App::dialog_tool_options->set_local_name(_("Circle Tool"));
 486         App::dialog_tool_options->set_name("circle");
 487 }
 488
 489 Smach::event_result
 490 StateCircle_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 491 {
 492         refresh_tool_options();
 493         return Smach::RESULT_ACCEPT;
 494 }
 495
 496 StateCircle_Context::~StateCircle_Context()
 497 {
 498         save_settings();
 499
 500         // Restore layer clicking
 501         get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
 502         get_canvas_view()->work_area->reset_cursor();
 503
 504         App::dialog_tool_options->clear();
 505
 506         // Enable the time bar
 507         //get_canvas_view()->set_sensitive_timebar(true);
 508
 509         // Bring back the tables if they were out before
 510         //if(prev_table_status)get_canvas_view()->show_tables();
 511
 512         // Refresh the work area
 513         get_work_area()->queue_draw();
 514
 515         get_canvas_view()->queue_rebuild_ducks();
 516
 517         App::toolbox->refresh();
 518 }
 519
 520 Smach::event_result
 521 StateCircle_Context::event_stop_handler(const Smach::event& /*x*/)
 522 {
 523         throw Smach::egress_exception();
 524 }
 525
 526 Smach::event_result
 527 StateCircle_Context::event_refresh_handler(const Smach::event& /*x*/)
 528 {
 529         refresh_ducks();
 530         return Smach::RESULT_ACCEPT;
 531 }
 532
 533 void
 534 StateCircle_Context::make_circle(const Point& _p1, const Point& _p2)
 535 {
 536         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Circle"));
 537         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 538
 539         Layer::Handle layer;
 540
 541         Canvas::Handle canvas;
 542         int depth(0);
 543
 544         // we are temporarily using the layer to hold something
 545         layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
 546         if(layer)
 547         {
 548                 depth=layer->get_depth();
 549                 canvas=layer->get_canvas();
 550         }
 551
 552         synfigapp::SelectionManager::LayerList layer_selection;
 553         if (!getenv("SYNFIG_TOOLS_CLEAR_SELECTION"))
 554                 layer_selection = get_canvas_view()->get_selection_manager()->get_selected_layers();
 555
 556         const synfig::TransformStack& transform(get_canvas_view()->get_curr_transform_stack());
 557         const Point p1(transform.unperform(_p1));
 558         const Point p2(transform.unperform(_p2));
 559
 560         Real radius((p2-p1).mag());
 561         int points = get_number_of_bline_points();
 562         Angle::deg offset(get_bline_point_angle_offset());
 563         Angle::deg angle(360.0/points);
 564         Real tangent(4 * ((points == 2)
 565                                           ? 1
 566                                           : ((2 * Angle::cos(angle/2).get() - Angle::cos(angle).get() - 1) / Angle::sin(angle).get())));
 567
 568         std::vector<BLinePoint> new_list;
 569         for (int i = 0; i < points; i++)
 570         {
 571                 new_list.push_back(*(new BLinePoint));
 572                 new_list[i].set_width(1);
 573                 new_list[i].set_vertex(Point(radius*Angle::cos(angle*i + offset).get(),
 574                                                                          radius*Angle::sin(angle*i + offset).get()));
 575                 new_list[i].set_tangent(Point(-radius*tangent*Angle::sin(angle*i + offset).get(),
 576                                                                            radius*tangent*Angle::cos(angle*i + offset).get()));
 577         }
 578
 579         ValueNode_BLine::Handle value_node_bline(ValueNode_BLine::create(new_list));
 580         assert(value_node_bline);
 581
 582         ValueNode_Const::Handle value_node_origin(ValueNode_Const::create(p1));
 583         assert(value_node_origin);
 584
 585         // Set the looping flag
 586         value_node_bline->set_loop(true);
 587
 588         if(!canvas)
 589                 canvas=get_canvas_view()->get_canvas();
 590
 591         value_node_bline->set_member_canvas(canvas);
 592
 593         // count how many layers we're going to be creating
 594         int layers_to_create = this->layers_to_create();
 595
 596         ///////////////////////////////////////////////////////////////////////////
 597         //   C I R C L E
 598         ///////////////////////////////////////////////////////////////////////////
 599
 600         if (get_layer_circle_flag() &&
 601                 get_falloff() >= 0 && get_falloff() < CIRCLE_NUM_FALLOFF)
 602         {
 603                 layer=get_canvas_interface()->add_layer_to("circle",canvas,depth);
 604                 if (!layer)
 605                 {
 606                         get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
 607                         group.cancel();
 608                         return;
 609                 }
 610                 layer_selection.push_back(layer);
 611
 612                 layer->set_param("origin",p1);
 613                 get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
 614
 615                 layer->set_param("radius",(p2-p1).mag());
 616                 get_canvas_interface()->signal_layer_param_changed()(layer,"radius");
 617
 618                 layer->set_param("falloff",get_falloff());
 619                 get_canvas_interface()->signal_layer_param_changed()(layer,"falloff");
 620
 621                 layer->set_param("feather",get_feather());
 622                 get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
 623
 624                 layer->set_param("invert",get_invert());
 625                 get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 626
 627 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 628                 layer->set_param("blend_method",get_blend());
 629                 get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
 630 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 631
 632                 layer->set_description(get_id());
 633                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 634
 635                 if(get_layer_outline_flag())
 636                 {
 637                         layer->set_param("color",synfigapp::Main::get_background_color());
 638                         get_canvas_interface()->signal_layer_param_changed()(layer,"color");
 639                 }
 640
 641                 // only link the circle's origin parameter if the option is selected and we're creating more than one layer
 642                 if (get_layer_link_origins_flag() && layers_to_create > 1)
 643                 {
 644                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 645                         assert(action);
 646
 647                         action->set_param("canvas",get_canvas());
 648                         action->set_param("canvas_interface",get_canvas_interface());
 649                         action->set_param("layer",layer);
 650                         if(!action->set_param("param",String("origin")))
 651                                 synfig::error("LayerParamConnect didn't like \"param\"");
 652                         if(!action->set_param("value_node",ValueNode::Handle(value_node_origin)))
 653                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 654
 655                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 656                         {
 657                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create Circle layer"));
 658                                 group.cancel();
 659                                 throw String(_("Unable to create Circle layer"));
 660                                 return;
 661                         }
 662                 }
 663                 else
 664                 {
 665                         layer->set_param("origin",p1);
 666                         get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
 667                 }
 668         }
 669
 670         ///////////////////////////////////////////////////////////////////////////
 671         //   C U R V E   G R A D I E N T
 672         ///////////////////////////////////////////////////////////////////////////
 673
 674         if(get_layer_curve_gradient_flag())
 675         {
 676                 synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 677
 678                 Layer::Handle layer(get_canvas_interface()->add_layer_to("curve_gradient",canvas,depth));
 679                 if (!layer)
 680                 {
 681                         get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
 682                         group.cancel();
 683                         return;
 684                 }
 685                 layer_selection.push_back(layer);
 686                 layer->set_description(get_id()+_(" Gradient"));
 687                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 688
 689 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 690                 layer->set_param("blend_method",get_blend());
 691                 get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
 692 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 693
 694                 {
 695                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 696                         assert(action);
 697
 698                         action->set_param("canvas",get_canvas());
 699                         action->set_param("canvas_interface",get_canvas_interface());
 700                         action->set_param("layer",layer);
 701                         if(!action->set_param("param",String("bline")))
 702                                 synfig::error("LayerParamConnect didn't like \"param\"");
 703                         if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 704                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 705
 706                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 707                         {
 708                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 709                                 group.cancel();
 710                                 throw String(_("Unable to create Gradient layer"));
 711                                 return;
 712                         }
 713                 }
 714
 715                 // only link the curve gradient's origin parameter if the option is selected and we're creating more than one layer
 716                 if (get_layer_link_origins_flag() && layers_to_create > 1)
 717                 {
 718                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 719                         assert(action);
 720
 721                         action->set_param("canvas",get_canvas());
 722                         action->set_param("canvas_interface",get_canvas_interface());
 723                         action->set_param("layer",layer);
 724                         if(!action->set_param("param",String("origin")))
 725                                 synfig::error("LayerParamConnect didn't like \"param\"");
 726                         if(!action->set_param("value_node",ValueNode::Handle(value_node_origin)))
 727                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 728
 729                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 730                         {
 731                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 732                                 group.cancel();
 733                                 throw String(_("Unable to create Gradient layer"));
 734                                 return;
 735                         }
 736                 }
 737                 else
 738                 {
 739                         layer->set_param("origin",p1);
 740                         get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
 741                 }
 742         }
 743
 744         ///////////////////////////////////////////////////////////////////////////
 745         //   P L A N T
 746         ///////////////////////////////////////////////////////////////////////////
 747
 748         if(get_layer_plant_flag())
 749         {
 750                 synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 751
 752                 Layer::Handle layer(get_canvas_interface()->add_layer_to("plant",canvas,depth));
 753                 if (!layer)
 754                 {
 755                         get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
 756                         group.cancel();
 757                         return;
 758                 }
 759                 layer_selection.push_back(layer);
 760                 layer->set_description(get_id()+_(" Plant"));
 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                 {
 769                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 770                         assert(action);
 771
 772                         action->set_param("canvas",get_canvas());
 773                         action->set_param("canvas_interface",get_canvas_interface());
 774                         action->set_param("layer",layer);
 775                         if(!action->set_param("param",String("bline")))
 776                                 synfig::error("LayerParamConnect didn't like \"param\"");
 777                         if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 778                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 779
 780                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 781                         {
 782                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 783                                 group.cancel();
 784                                 throw String(_("Unable to create Plant layer"));
 785                                 return;
 786                         }
 787                 }
 788
 789                 // only link the plant's origin parameter if the option is selected and we're creating more than one layer
 790                 if (get_layer_link_origins_flag() && layers_to_create > 1)
 791                 {
 792                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 793                         assert(action);
 794
 795                         action->set_param("canvas",get_canvas());
 796                         action->set_param("canvas_interface",get_canvas_interface());
 797                         action->set_param("layer",layer);
 798                         if(!action->set_param("param",String("origin")))
 799                                 synfig::error("LayerParamConnect didn't like \"param\"");
 800                         if(!action->set_param("value_node",ValueNode::Handle(value_node_origin)))
 801                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 802
 803                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 804                         {
 805                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 806                                 group.cancel();
 807                                 throw String(_("Unable to create Plant layer"));
 808                                 return;
 809                         }
 810                 }
 811                 else
 812                 {
 813                         layer->set_param("origin",p1);
 814                         get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
 815                 }
 816         }
 817
 818         ///////////////////////////////////////////////////////////////////////////
 819         //   R E G I O N
 820         ///////////////////////////////////////////////////////////////////////////
 821
 822         if(get_layer_region_flag())
 823         {
 824                 synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 825
 826                 Layer::Handle layer(get_canvas_interface()->add_layer_to("region",canvas,depth));
 827                 if (!layer)
 828                 {
 829                         get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
 830                         group.cancel();
 831                         return;
 832                 }
 833                 layer_selection.push_back(layer);
 834                 layer->set_description(get_id()+_(" Region"));
 835                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 836
 837 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 838                 layer->set_param("blend_method",get_blend());
 839                 get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
 840 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 841
 842                 layer->set_param("feather",get_feather());
 843                 get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
 844
 845                 layer->set_param("invert",get_invert());
 846                 get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 847
 848                 if(get_layer_outline_flag())
 849                         layer->set_param("color",synfigapp::Main::get_background_color());
 850
 851                 // I don't know if it's safe to reuse the same layer_param_connect action, so I'm
 852                 // using 2 separate ones.
 853                 {
 854                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 855                         assert(action);
 856
 857                         action->set_param("canvas",get_canvas());
 858                         action->set_param("canvas_interface",get_canvas_interface());
 859                         action->set_param("layer",layer);
 860                         if(!action->set_param("param",String("bline")))
 861                                 synfig::error("LayerParamConnect didn't like \"param\"");
 862                         if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 863                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 864
 865                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 866                         {
 867                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create Region layer"));
 868                                 group.cancel();
 869                                 throw String(_("Unable to create Region layer"));
 870                                 return;
 871                         }
 872                 }
 873
 874                 // only link the region's origin parameter if the option is selected and we're creating more than one layer
 875                 if (get_layer_link_origins_flag() && layers_to_create > 1)
 876                 {
 877                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 878                         assert(action);
 879
 880                         action->set_param("canvas",get_canvas());
 881                         action->set_param("canvas_interface",get_canvas_interface());
 882                         action->set_param("layer",layer);
 883                         if(!action->set_param("param",String("origin")))
 884                                 synfig::error("LayerParamConnect didn't like \"param\"");
 885                         if(!action->set_param("value_node",ValueNode::Handle(value_node_origin)))
 886                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 887
 888                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 889                         {
 890                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create Region layer"));
 891                                 group.cancel();
 892                                 throw String(_("Unable to create Region layer"));
 893                                 return;
 894                         }
 895                 }
 896                 else
 897                 {
 898                         layer->set_param("origin",p1);
 899                         get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
 900                 }
 901         }
 902
 903         ///////////////////////////////////////////////////////////////////////////
 904         //   O U T L I N E
 905         ///////////////////////////////////////////////////////////////////////////
 906
 907         if (get_layer_outline_flag())
 908         {
 909                 Layer::Handle layer(get_canvas_interface()->add_layer_to("outline",canvas,depth));
 910                 if (!layer)
 911                 {
 912                         get_canvas_view()->get_ui_interface()->error(_("Unable to create layer"));
 913                         group.cancel();
 914                         return;
 915                 }
 916                 layer_selection.push_back(layer);
 917                 layer->set_description(get_id()+_(" Outline"));
 918                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 919
 920 #ifdef BLEND_METHOD_IN_TOOL_OPTIONS
 921                 layer->set_param("blend_method",get_blend());
 922                 get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
 923 #endif  // BLEND_METHOD_IN_TOOL_OPTIONS
 924
 925                 layer->set_param("feather",get_feather());
 926                 get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
 927
 928                 layer->set_param("invert",get_invert());
 929                 get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 930
 931                 {
 932                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 933                         assert(action);
 934
 935                         action->set_param("canvas",get_canvas());
 936                         action->set_param("canvas_interface",get_canvas_interface());
 937                         action->set_param("layer",layer);
 938                         if(!action->set_param("param",String("bline")))
 939                                 synfig::error("LayerParamConnect didn't like \"param\"");
 940                         if(!action->set_param("value_node",ValueNode::Handle(value_node_bline)))
 941                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 942
 943                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 944                         {
 945                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 946                                 group.cancel();
 947                                 throw String(_("Unable to create Outline layer"));
 948                                 return;
 949                         }
 950                 }
 951
 952                 // only link the outline's origin parameter if the option is selected and we're creating more than one layer
 953                 if (get_layer_link_origins_flag() && layers_to_create > 1)
 954                 {
 955                         synfigapp::Action::Handle action(synfigapp::Action::create("layer_param_connect"));
 956                         assert(action);
 957
 958                         action->set_param("canvas",get_canvas());
 959                         action->set_param("canvas_interface",get_canvas_interface());
 960                         action->set_param("layer",layer);
 961                         if(!action->set_param("param",String("origin")))
 962                                 synfig::error("LayerParamConnect didn't like \"param\"");
 963                         if(!action->set_param("value_node",ValueNode::Handle(value_node_origin)))
 964                                 synfig::error("LayerParamConnect didn't like \"value_node\"");
 965
 966                         if(!get_canvas_interface()->get_instance()->perform_action(action))
 967                         {
 968                                 //get_canvas_view()->get_ui_interface()->error(_("Unable to create BLine layer"));
 969                                 group.cancel();
 970                                 throw String(_("Unable to create Outline layer"));
 971                                 return;
 972                         }
 973                 }
 974                 else
 975                 {
 976                         layer->set_param("origin",p1);
 977                         get_canvas_interface()->signal_layer_param_changed()(layer,"origin");
 978                 }
 979         }
 980
 981         egress_on_selection_change=false;
 982         get_canvas_interface()->get_selection_manager()->clear_selected_layers();
 983         get_canvas_interface()->get_selection_manager()->set_selected_layers(layer_selection);
 984         egress_on_selection_change=true;
 985
 986         reset();
 987         increment_id();
 988 }
 989
 990 Smach::event_result
 991 StateCircle_Context::event_mouse_click_handler(const Smach::event& x)
 992 {
 993         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 994
 995         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DOWN && event.button==BUTTON_LEFT)
 996         {
 997                 point_holder=get_work_area()->snap_point_to_grid(event.pos);
 998                 etl::handle<Duck> duck=new Duck();
 999                 duck->set_point(point_holder);
1000                 duck->set_name("p1");
1001                 duck->set_type(Duck::TYPE_POSITION);
1002                 duck->set_editable(false);
1003                 get_work_area()->add_duck(duck);
1004
1005                 point2_duck=new Duck();
1006                 point2_duck->set_point(Vector(0,0));
1007                 point2_duck->set_name("radius");
1008                 point2_duck->set_origin(duck);
1009                 point2_duck->set_radius(true);
1010                 point2_duck->set_scalar(-1);
1011                 point2_duck->set_type(Duck::TYPE_RADIUS);
1012                 point2_duck->set_hover(true);
1013                 get_work_area()->add_duck(point2_duck);
1014
1015                 return Smach::RESULT_ACCEPT;
1016         }
1017
1018         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DRAG && event.button==BUTTON_LEFT)
1019         {
1020                 if (!point2_duck) return Smach::RESULT_OK;
1021                 point2_duck->set_point(point_holder-get_work_area()->snap_point_to_grid(event.pos));
1022                 get_work_area()->queue_draw();
1023                 return Smach::RESULT_ACCEPT;
1024         }
1025
1026         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_UP && event.button==BUTTON_LEFT)
1027         {
1028                 Point point(get_work_area()->snap_point_to_grid(event.pos));
1029
1030                 if (App::restrict_radius_ducks)
1031                 {
1032                         if ((point[0] - point_holder[0]) < 0) point[0] = point_holder[0];
1033                         if ((point[1] - point_holder[1]) < 0) point[1] = point_holder[1];
1034                 }
1035
1036                 make_circle(point_holder, point);
1037                 get_work_area()->clear_ducks();
1038                 return Smach::RESULT_ACCEPT;
1039         }
1040
1041         return Smach::RESULT_OK;
1042 }
1043
1044
1045 void
1046 StateCircle_Context::refresh_ducks()
1047 {
1048         get_work_area()->clear_ducks();
1049         get_work_area()->queue_draw();
1050 }