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
  39 #include "state_circle.h"
  40 #include "canvasview.h"
  41 #include "workarea.h"
  42 #include "app.h"
  43
  44 #include <synfigapp/action.h>
  45 #include "event_mouse.h"
  46 #include "event_layerclick.h"
  47 #include "toolbox.h"
  48 #include "dialog_tooloptions.h"
  49 #include <gtkmm/optionmenu.h>
  50 #include "duck.h"
  51 #include "widget_enum.h"
  52 #include <synfigapp/main.h>
  53
  54 #include "general.h"
  55
  56 #endif
  57
  58 /* === U S I N G =========================================================== */
  59
  60 using namespace std;
  61 using namespace etl;
  62 using namespace synfig;
  63 using namespace studio;
  64
  65 /* === M A C R O S ========================================================= */
  66 enum CircleFalloff
  67 {
  68         CIRCLE_SQUARED  =0,
  69         CIRCLE_INTERPOLATION_LINEAR     =1,
  70         CIRCLE_COSINE   =2,
  71         CIRCLE_SIGMOND  =3,
  72         CIRCLE_SQRT             =4,
  73         CIRCLE_NUM_FALLOFF
  74 };
  75
  76 /* === G L O B A L S ======================================================= */
  77
  78 StateCircle studio::state_circle;
  79
  80 /* === C L A S S E S & S T R U C T S ======================================= */
  81
  82 class studio::StateCircle_Context : public sigc::trackable
  83 {
  84         etl::handle<CanvasView> canvas_view_;
  85         CanvasView::IsWorking is_working;
  86
  87         Duckmatic::Push duckmatic_push;
  88
  89         Point point_holder;
  90
  91         etl::handle<Duck> point2_duck;
  92
  93         void refresh_ducks();
  94
  95         bool prev_workarea_layer_status_;
  96
  97         //Toolbox settings
  98         synfigapp::Settings& settings;
  99
 100         //Toolbox display
 101         Gtk::Table options_table;
 102
 103         Gtk::Entry              entry_id; //what to name the layer
 104
 105         Widget_Enum             enum_falloff;
 106         Widget_Enum             enum_blend;
 107
 108         Gtk::Adjustment adj_feather;
 109         Gtk::SpinButton spin_feather;
 110
 111         Gtk::CheckButton check_invert;
 112
 113 public:
 114
 115         synfig::String get_id()const { return entry_id.get_text(); }
 116         void set_id(const synfig::String& x) { return entry_id.set_text(x); }
 117
 118         int get_falloff()const { return enum_falloff.get_value(); }
 119         void set_falloff(int x) { return enum_falloff.set_value(x); }
 120
 121         int get_blend()const { return enum_blend.get_value(); }
 122         void set_blend(int x) { return enum_blend.set_value(x); }
 123
 124         Real get_feather()const { return adj_feather.get_value(); }
 125         void set_feather(Real f) { adj_feather.set_value(f); }
 126
 127         bool get_invert()const { return check_invert.get_active(); }
 128         void set_invert(bool i) { check_invert.set_active(i); }
 129
 130         void refresh_tool_options(); //to refresh the toolbox
 131
 132         //events
 133         Smach::event_result event_stop_handler(const Smach::event& x);
 134         Smach::event_result event_refresh_handler(const Smach::event& x);
 135         Smach::event_result event_mouse_click_handler(const Smach::event& x);
 136         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 137
 138         //constructor destructor
 139         StateCircle_Context(CanvasView* canvas_view);
 140         ~StateCircle_Context();
 141
 142         //Canvas interaction
 143         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 144         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 145         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 146         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 147
 148         //Modifying settings etc.
 149         void load_settings();
 150         void save_settings();
 151         void reset();
 152         void increment_id();
 153         bool egress_on_selection_change;
 154         Smach::event_result event_layer_selection_changed_handler(const Smach::event& /*x*/)
 155         {
 156                 if(egress_on_selection_change)
 157                         throw Smach::egress_exception();
 158                 return Smach::RESULT_OK;
 159         }
 160
 161         void make_circle(const Point& p1, const Point& p2);
 162
 163 };      // END of class StateGradient_Context
 164
 165 /* === M E T H O D S ======================================================= */
 166
 167 StateCircle::StateCircle():
 168         Smach::state<StateCircle_Context>("circle")
 169 {
 170         insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StateCircle_Context::event_layer_selection_changed_handler));
 171         insert(event_def(EVENT_STOP,&StateCircle_Context::event_stop_handler));
 172         insert(event_def(EVENT_REFRESH,&StateCircle_Context::event_refresh_handler));
 173         insert(event_def(EVENT_REFRESH_DUCKS,&StateCircle_Context::event_refresh_handler));
 174         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateCircle_Context::event_mouse_click_handler));
 175         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DRAG,&StateCircle_Context::event_mouse_click_handler));
 176         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_UP,&StateCircle_Context::event_mouse_click_handler));
 177         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateCircle_Context::event_refresh_tool_options));
 178 }
 179
 180 StateCircle::~StateCircle()
 181 {
 182 }
 183
 184 void
 185 StateCircle_Context::load_settings()
 186 {
 187         String value;
 188
 189         //parse the arguments yargh!
 190         if(settings.get_value("circle.id",value))
 191                 set_id(value);
 192         else
 193                 set_id("Circle");
 194
 195         if(settings.get_value("circle.fallofftype",value) && value != "")
 196                 set_falloff(atoi(value.c_str()));
 197         else
 198                 set_falloff(2);
 199
 200         if(settings.get_value("circle.blend",value) && value != "")
 201                 set_blend(atoi(value.c_str()));
 202         else
 203                 set_blend(0);//(int)Color::BLEND_COMPOSITE); //0 should be blend composites value
 204
 205         if(settings.get_value("circle.feather",value))
 206                 set_feather(atof(value.c_str()));
 207         else
 208                 set_feather(0);
 209
 210         if(settings.get_value("circle.invert",value) && value != "0")
 211                 set_invert(true);
 212         else
 213                 set_invert(false);
 214 }
 215
 216 void
 217 StateCircle_Context::save_settings()
 218 {
 219         settings.set_value("circle.id",get_id());
 220         settings.set_value("circle.fallofftype",strprintf("%d",get_falloff()));
 221         settings.set_value("circle.blend",strprintf("%d",get_blend()));
 222         settings.set_value("circle.feather",strprintf("%f",(float)get_feather()));
 223         settings.set_value("circle.invert",get_invert()?"1":"0");
 224 }
 225
 226 void
 227 StateCircle_Context::reset()
 228 {
 229         refresh_ducks();
 230 }
 231
 232 void
 233 StateCircle_Context::increment_id()
 234 {
 235         String id(get_id());
 236         int number=1;
 237         int digits=0;
 238
 239         if(id.empty())
 240                 id="Circle";
 241
 242         // If there is a number
 243         // already at the end of the
 244         // id, then remove it.
 245         if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
 246         {
 247                 // figure out how many digits it is
 248                 for (digits = 0;
 249                          (int)id.size()-1 >= digits && id[id.size()-1-digits] <= '9' && id[id.size()-1-digits] >= '0';
 250                          digits++)
 251                         ;
 252
 253                 String str_number;
 254                 str_number=String(id,id.size()-digits,id.size());
 255                 id=String(id,0,id.size()-digits);
 256
 257                 number=atoi(str_number.c_str());
 258         }
 259         else
 260         {
 261                 number=1;
 262                 digits=3;
 263         }
 264
 265         number++;
 266
 267         // Add the number back onto the id
 268         {
 269                 const String format(strprintf("%%0%dd",digits));
 270                 id+=strprintf(format.c_str(),number);
 271         }
 272
 273         // Set the ID
 274         set_id(id);
 275 }
 276
 277 StateCircle_Context::StateCircle_Context(CanvasView* canvas_view):
 278         canvas_view_(canvas_view),
 279         is_working(*canvas_view),
 280         duckmatic_push(get_work_area()),
 281         prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
 282         settings(synfigapp::Main::get_selected_input_device()->settings()),
 283         entry_id(),
 284         adj_feather(0,0,1,0.01,0.1),
 285         spin_feather(adj_feather,0.1,3),
 286         check_invert(_("Invert"))
 287 {
 288         egress_on_selection_change=true;
 289         // Set up the tool options dialog
 290         //options_table.attach(*manage(new Gtk::Label(_("Circle Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 291         options_table.attach(entry_id, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 292
 293         enum_falloff.set_param_desc(ParamDesc("falloff")
 294                 .set_local_name(_("Falloff"))
 295                 .set_description(_("Determines the falloff function for the feather"))
 296                 .set_hint("enum")
 297                 .add_enum_value(CIRCLE_INTERPOLATION_LINEAR,"linear",_("Linear"))
 298                 .add_enum_value(CIRCLE_SQUARED,"squared",_("Squared"))
 299                 .add_enum_value(CIRCLE_SQRT,"sqrt",_("Square Root"))
 300                 .add_enum_value(CIRCLE_SIGMOND,"sigmond",_("Sigmond"))
 301                 .add_enum_value(CIRCLE_COSINE,"cosine",_("Cosine")));
 302
 303         enum_blend.set_param_desc(ParamDesc(Color::BLEND_COMPOSITE,"blend_method")
 304                 .set_local_name(_("Blend Method"))
 305                 .set_description(_("Defines the blend method to be used for circles")));
 306
 307         load_settings();
 308
 309         //feather stuff
 310         options_table.attach(*manage(new Gtk::Label(_("Feather:"))), 0, 1, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 311         options_table.attach(spin_feather, 1, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 312         options_table.attach(enum_falloff, 0, 2, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 313         options_table.attach(enum_blend, 0, 2, 5, 6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 314
 315         //invert flag
 316         options_table.attach(check_invert, 0, 2, 6, 7, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 317
 318         options_table.show_all();
 319
 320         refresh_tool_options();
 321         App::dialog_tool_options->present();
 322
 323         // Turn off layer clicking
 324         get_work_area()->set_allow_layer_clicks(false);
 325
 326         // clear out the ducks
 327         get_work_area()->clear_ducks();
 328
 329         // Refresh the work area
 330         get_work_area()->queue_draw();
 331
 332         // Hide the tables if they are showing
 333         //prev_table_status=get_canvas_view()->tables_are_visible();
 334         //if(prev_table_status)get_canvas_view()->hide_tables();
 335
 336         // Disable the time bar
 337         //get_canvas_view()->set_sensitive_timebar(false);
 338
 339         // Connect a signal
 340         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StateCircle_Context::on_user_click));
 341         get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 342
 343         App::toolbox->refresh();
 344 }
 345
 346 void
 347 StateCircle_Context::refresh_tool_options()
 348 {
 349         App::dialog_tool_options->clear();
 350         App::dialog_tool_options->set_widget(options_table);
 351         App::dialog_tool_options->set_local_name(_("Circle Tool"));
 352         App::dialog_tool_options->set_name("circle");
 353 }
 354
 355 Smach::event_result
 356 StateCircle_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 357 {
 358         refresh_tool_options();
 359         return Smach::RESULT_ACCEPT;
 360 }
 361
 362 StateCircle_Context::~StateCircle_Context()
 363 {
 364         save_settings();
 365
 366         // Restore layer clicking
 367         get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
 368         get_canvas_view()->work_area->reset_cursor();
 369
 370         App::dialog_tool_options->clear();
 371
 372         // Enable the time bar
 373         //get_canvas_view()->set_sensitive_timebar(true);
 374
 375         // Bring back the tables if they were out before
 376         //if(prev_table_status)get_canvas_view()->show_tables();
 377
 378         // Refresh the work area
 379         get_work_area()->queue_draw();
 380
 381         App::toolbox->refresh();
 382 }
 383
 384 Smach::event_result
 385 StateCircle_Context::event_stop_handler(const Smach::event& /*x*/)
 386 {
 387         throw Smach::egress_exception();
 388 }
 389
 390 Smach::event_result
 391 StateCircle_Context::event_refresh_handler(const Smach::event& /*x*/)
 392 {
 393         refresh_ducks();
 394         return Smach::RESULT_ACCEPT;
 395 }
 396
 397 void
 398 StateCircle_Context::make_circle(const Point& _p1, const Point& _p2)
 399 {
 400         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Circle"));
 401         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 402
 403         Layer::Handle layer;
 404
 405         Canvas::Handle canvas(get_canvas_view()->get_canvas());
 406         int depth(0);
 407
 408         // we are temporarily using the layer to hold something
 409         layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
 410         if(layer)
 411         {
 412                 depth=layer->get_depth();
 413                 canvas=layer->get_canvas();
 414         }
 415
 416         const synfig::TransformStack& transform(get_canvas_view()->get_curr_transform_stack());
 417         const Point p1(transform.unperform(_p1));
 418         const Point p2(transform.unperform(_p2));
 419
 420         if(get_falloff() >= 0 && get_falloff() < CIRCLE_NUM_FALLOFF)
 421         {
 422
 423                 layer=get_canvas_interface()->add_layer_to("circle",canvas,depth);
 424
 425                 layer->set_param("pos",p1);
 426                 get_canvas_interface()->signal_layer_param_changed()(layer,"pos");
 427
 428                 layer->set_param("radius",(p2-p1).mag());
 429                 get_canvas_interface()->signal_layer_param_changed()(layer,"radius");
 430
 431                 layer->set_param("falloff",get_falloff());
 432                 get_canvas_interface()->signal_layer_param_changed()(layer,"falloff");
 433
 434                 layer->set_param("feather",get_feather());
 435                 get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
 436
 437                 layer->set_param("invert",get_invert());
 438                 get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 439
 440                 layer->set_param("blend_method",get_blend());
 441                 get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
 442
 443                 layer->set_description(get_id());
 444                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 445
 446                 egress_on_selection_change=false;
 447                 get_canvas_interface()->get_selection_manager()->clear_selected_layers();
 448                 get_canvas_interface()->get_selection_manager()->set_selected_layer(layer);
 449                 egress_on_selection_change=true;
 450         }
 451
 452         reset();
 453         increment_id();
 454 }
 455
 456 Smach::event_result
 457 StateCircle_Context::event_mouse_click_handler(const Smach::event& x)
 458 {
 459         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 460
 461         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DOWN && event.button==BUTTON_LEFT)
 462         {
 463                 point_holder=get_work_area()->snap_point_to_grid(event.pos);
 464                 etl::handle<Duck> duck=new Duck();
 465                 duck->set_point(point_holder);
 466                 duck->set_name("p1");
 467                 duck->set_type(Duck::TYPE_POSITION);
 468                 duck->set_editable(false);
 469                 get_work_area()->add_duck(duck);
 470
 471                 point2_duck=new Duck();
 472                 point2_duck->set_point(Vector(0,0));
 473                 point2_duck->set_name("radius");
 474                 point2_duck->set_origin(duck);
 475                 point2_duck->set_radius(true);
 476                 point2_duck->set_scalar(-1);
 477                 point2_duck->set_type(Duck::TYPE_RADIUS);
 478                 point2_duck->set_hover(true);
 479                 get_work_area()->add_duck(point2_duck);
 480
 481                 return Smach::RESULT_ACCEPT;
 482         }
 483
 484         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DRAG && event.button==BUTTON_LEFT)
 485         {
 486                 point2_duck->set_point(point_holder-get_work_area()->snap_point_to_grid(event.pos));
 487                 get_work_area()->queue_draw();
 488                 return Smach::RESULT_ACCEPT;
 489         }
 490
 491         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_UP && event.button==BUTTON_LEFT)
 492         {
 493                 Point point(get_work_area()->snap_point_to_grid(event.pos));
 494
 495                 if (App::restrict_radius_ducks)
 496                 {
 497                         if ((point[0] - point_holder[0]) * get_work_area()->get_pw() < 0) point[0] = point_holder[0];
 498                         if ((point[1] - point_holder[1]) * get_work_area()->get_ph() > 0) point[1] = point_holder[1];
 499                 }
 500
 501                 make_circle(point_holder, point);
 502                 get_work_area()->clear_ducks();
 503                 return Smach::RESULT_ACCEPT;
 504         }
 505
 506         return Smach::RESULT_OK;
 507 }
 508
 509
 510 void
 511 StateCircle_Context::refresh_ducks()
 512 {
 513         get_work_area()->clear_ducks();
 514         get_work_area()->queue_draw();
 515 }