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: state_circle.cpp,v 1.1.1.1 2005/01/07 03:34:36 darco Exp $
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002 Robert B. Quattlebaum Jr.
   9 **
  10 **      This software and associated documentation
  11 **      are CONFIDENTIAL and PROPRIETARY property of
  12 **      the above-mentioned copyright holder.
  13 **
  14 **      You may not copy, print, publish, or in any
  15 **      other way distribute this software without
  16 **      a prior written agreement with
  17 **      the copyright holder.
  18 **      \endlegal
  19 */
  20 /* ========================================================================= */
  21
  22 /* === H E A D E R S ======================================================= */
  23
  24 #ifdef USING_PCH
  25 #       include "pch.h"
  26 #else
  27 #ifdef HAVE_CONFIG_H
  28 #       include <config.h>
  29 #endif
  30
  31 #include <gtkmm/dialog.h>
  32 #include <gtkmm/entry.h>
  33
  34 #include <synfig/valuenode_dynamiclist.h>
  35 #include <synfigapp/action_system.h>
  36
  37 #include "state_circle.h"
  38 #include "canvasview.h"
  39 #include "workarea.h"
  40 #include "app.h"
  41
  42 #include <synfigapp/action.h>
  43 #include "event_mouse.h"
  44 #include "event_layerclick.h"
  45 #include "toolbox.h"
  46 #include "dialog_tooloptions.h"
  47 #include <gtkmm/optionmenu.h>
  48 #include "duck.h"
  49 #include "widget_enum.h"
  50 #include <synfigapp/main.h>
  51
  52 #endif
  53
  54 /* === U S I N G =========================================================== */
  55
  56 using namespace std;
  57 using namespace etl;
  58 using namespace synfig;
  59 using namespace studio;
  60
  61 /* === M A C R O S ========================================================= */
  62 enum CircleFalloff
  63 {
  64         CIRCLE_SQUARED  =0,
  65         CIRCLE_INTERPOLATION_LINEAR     =1,
  66         CIRCLE_COSINE   =2,
  67         CIRCLE_SIGMOND  =3,
  68         CIRCLE_SQRT             =4,
  69         CIRCLE_NUM_FALLOFF
  70 };
  71
  72 /* === G L O B A L S ======================================================= */
  73
  74 StateCircle studio::state_circle;
  75
  76 /* === C L A S S E S & S T R U C T S ======================================= */
  77
  78 class studio::StateCircle_Context : public sigc::trackable
  79 {
  80         etl::handle<CanvasView> canvas_view_;
  81         CanvasView::IsWorking is_working;
  82
  83         Duckmatic::Push duckmatic_push;
  84
  85         Point point_holder;
  86
  87         etl::handle<Duck> point2_duck;
  88
  89         void refresh_ducks();
  90
  91         bool prev_workarea_layer_status_;
  92
  93         //Toolbox settings
  94         synfigapp::Settings& settings;
  95
  96         //Toolbox display
  97         Gtk::Table options_table;
  98
  99         Gtk::Entry              entry_id; //what to name the layer
 100
 101         Widget_Enum             enum_falloff;
 102         Widget_Enum             enum_blend;
 103
 104         Gtk::Adjustment adj_feather;
 105         Gtk::SpinButton spin_feather;
 106
 107         Gtk::CheckButton check_invert;
 108
 109 public:
 110
 111         synfig::String get_id()const { return entry_id.get_text(); }
 112         void set_id(const synfig::String& x) { return entry_id.set_text(x); }
 113
 114         int get_falloff()const { return enum_falloff.get_value(); }
 115         void set_falloff(int x) { return enum_falloff.set_value(x); }
 116
 117         int get_blend()const { return enum_blend.get_value(); }
 118         void set_blend(int x) { return enum_blend.set_value(x); }
 119
 120         Real get_feather()const { return adj_feather.get_value(); }
 121         void set_feather(Real f) { adj_feather.set_value(f); }
 122
 123         bool get_invert()const { return check_invert.get_active(); }
 124         void set_invert(bool i) { check_invert.set_active(i); }
 125
 126         void refresh_tool_options(); //to refresh the toolbox
 127
 128         //events
 129         Smach::event_result event_stop_handler(const Smach::event& x);
 130         Smach::event_result event_refresh_handler(const Smach::event& x);
 131         Smach::event_result event_mouse_click_handler(const Smach::event& x);
 132         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 133
 134         //constructor destructor
 135         StateCircle_Context(CanvasView* canvas_view);
 136         ~StateCircle_Context();
 137
 138         //Canvas interaction
 139         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 140         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 141         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 142         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 143
 144         //Modifying settings etc.
 145         void load_settings();
 146         void save_settings();
 147         void reset();
 148         void increment_id();
 149         bool no_egress_on_selection_change;
 150         Smach::event_result event_layer_selection_changed_handler(const Smach::event& x)
 151         {
 152                 if(!no_egress_on_selection_change)
 153                         throw Smach::egress_exception();
 154                 return Smach::RESULT_OK;
 155         }
 156
 157         void make_circle(const Point& p1, const Point& p2);
 158
 159 };      // END of class StateGradient_Context
 160
 161 /* === M E T H O D S ======================================================= */
 162
 163 StateCircle::StateCircle():
 164         Smach::state<StateCircle_Context>("circle")
 165 {
 166         insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StateCircle_Context::event_layer_selection_changed_handler));
 167         insert(event_def(EVENT_STOP,&StateCircle_Context::event_stop_handler));
 168         insert(event_def(EVENT_REFRESH,&StateCircle_Context::event_refresh_handler));
 169         insert(event_def(EVENT_REFRESH_DUCKS,&StateCircle_Context::event_refresh_handler));
 170         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateCircle_Context::event_mouse_click_handler));
 171         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DRAG,&StateCircle_Context::event_mouse_click_handler));
 172         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_UP,&StateCircle_Context::event_mouse_click_handler));
 173         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateCircle_Context::event_refresh_tool_options));
 174 }
 175
 176 StateCircle::~StateCircle()
 177 {
 178 }
 179
 180 void
 181 StateCircle_Context::load_settings()
 182 {
 183         String value;
 184
 185         //parse the arguments yargh!
 186         if(settings.get_value("circle.id",value))
 187                 set_id(value);
 188         else
 189                 set_id("Circle");
 190
 191         if(settings.get_value("circle.fallofftype",value) && value != "")
 192                 set_falloff(atoi(value.c_str()));
 193         else
 194                 set_falloff(2);
 195
 196         if(settings.get_value("circle.blend",value) && value != "")
 197                 set_blend(atoi(value.c_str()));
 198         else
 199                 set_blend(0);//(int)Color::BLEND_COMPOSITE); //0 should be blend composites value
 200
 201         if(settings.get_value("circle.feather",value))
 202                 set_feather(atof(value.c_str()));
 203         else
 204                 set_feather(0);
 205
 206         if(settings.get_value("circle.invert",value) && value != "0")
 207                 set_invert(true);
 208         else
 209                 set_invert(false);
 210 }
 211
 212 void
 213 StateCircle_Context::save_settings()
 214 {
 215         settings.set_value("circle.id",get_id());
 216         settings.set_value("circle.fallofftype",strprintf("%d",get_falloff()));
 217         settings.set_value("circle.blend",strprintf("%d",get_blend()));
 218         settings.set_value("circle.feather",strprintf("%f",(float)get_feather()));
 219         settings.set_value("circle.invert",get_invert()?"1":"0");
 220 }
 221
 222 void
 223 StateCircle_Context::reset()
 224 {
 225         refresh_ducks();
 226 }
 227
 228 void
 229 StateCircle_Context::increment_id()
 230 {
 231         String id(get_id());
 232         int number=1;
 233         int digits=0;
 234
 235         if(id.empty())
 236                 id="Circle";
 237
 238         // If there is a number
 239         // already at the end of the
 240         // id, then remove it.
 241         if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
 242         {
 243                 // figure out how many digits it is
 244                 for(digits=0;(int)id.size()-1>=digits && id[id.size()-1-digits]<='9' && id[id.size()-1-digits]>='0';digits++)while(false);
 245
 246                 String str_number;
 247                 str_number=String(id,id.size()-digits,id.size());
 248                 id=String(id,0,id.size()-digits);
 249
 250                 number=atoi(str_number.c_str());
 251         }
 252         else
 253         {
 254                 number=1;
 255                 digits=3;
 256         }
 257
 258         number++;
 259
 260         // Add the number back onto the id
 261         {
 262                 const String format(strprintf("%%0%dd",digits));
 263                 id+=strprintf(format.c_str(),number);
 264         }
 265
 266         // Set the ID
 267         set_id(id);
 268 }
 269
 270 StateCircle_Context::StateCircle_Context(CanvasView* canvas_view):
 271         canvas_view_(canvas_view),
 272         is_working(*canvas_view),
 273         duckmatic_push(get_work_area()),
 274         prev_workarea_layer_status_(get_work_area()->allow_layer_clicks),
 275         settings(synfigapp::Main::get_selected_input_device()->settings()),
 276         entry_id(),
 277         adj_feather(0,0,1,0.01,0.1),
 278         spin_feather(adj_feather,0.1,3),
 279         check_invert(_("Invert"))
 280 {
 281         no_egress_on_selection_change=false;
 282         // Set up the tool options dialog
 283         //options_table.attach(*manage(new Gtk::Label(_("Circle Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 284         options_table.attach(entry_id, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 285
 286         enum_falloff.set_param_desc(ParamDesc("falloff")
 287                 .set_local_name(_("Falloff"))
 288                 .set_description(_("Determines the falloff function for the feather"))
 289                 .set_hint("enum")
 290                 .add_enum_value(CIRCLE_INTERPOLATION_LINEAR,"linear",_("Linear"))
 291                 .add_enum_value(CIRCLE_SQUARED,"squared",_("Squared"))
 292                 .add_enum_value(CIRCLE_SQRT,"sqrt",_("Square Root"))
 293                 .add_enum_value(CIRCLE_SIGMOND,"sigmond",_("Sigmond"))
 294                 .add_enum_value(CIRCLE_COSINE,"cosine",_("Cosine")));
 295
 296         enum_blend.set_param_desc(ParamDesc(Color::BLEND_COMPOSITE,"blend_method")
 297                 .set_local_name(_("Blend Method"))
 298                 .set_description(_("Defines the blend method to be used for circles")));
 299
 300         load_settings();
 301
 302         //feather stuff
 303         options_table.attach(*manage(new Gtk::Label(_("Feather:"))), 0, 1, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 304         options_table.attach(spin_feather, 1, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 305         options_table.attach(enum_falloff, 0, 2, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 306         options_table.attach(enum_blend, 0, 2, 5, 6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 307
 308         //invert flag
 309         options_table.attach(check_invert, 0, 2, 6, 7, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 310
 311         options_table.show_all();
 312
 313         refresh_tool_options();
 314         App::dialog_tool_options->present();
 315
 316         // Turn off layer clicking
 317         get_work_area()->allow_layer_clicks=false;
 318
 319         // clear out the ducks
 320         get_work_area()->clear_ducks();
 321
 322         // Refresh the work area
 323         get_work_area()->queue_draw();
 324
 325         // Hide the tables if they are showing
 326         //prev_table_status=get_canvas_view()->tables_are_visible();
 327         //if(prev_table_status)get_canvas_view()->hide_tables();
 328
 329         // Hide the time bar
 330         //get_canvas_view()->hide_timebar();
 331
 332         // Connect a signal
 333         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StateCircle_Context::on_user_click));
 334         get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 335
 336         App::toolbox->refresh();
 337 }
 338
 339 void
 340 StateCircle_Context::refresh_tool_options()
 341 {
 342         App::dialog_tool_options->clear();
 343         App::dialog_tool_options->set_widget(options_table);
 344         App::dialog_tool_options->set_local_name(_("Circle Tool"));
 345         App::dialog_tool_options->set_name("circle");
 346 }
 347
 348 Smach::event_result
 349 StateCircle_Context::event_refresh_tool_options(const Smach::event& x)
 350 {
 351         refresh_tool_options();
 352         return Smach::RESULT_ACCEPT;
 353 }
 354
 355 StateCircle_Context::~StateCircle_Context()
 356 {
 357         save_settings();
 358
 359         // Restore layer clicking
 360         get_work_area()->allow_layer_clicks=prev_workarea_layer_status_;
 361         get_canvas_view()->work_area->reset_cursor();
 362
 363         App::dialog_tool_options->clear();
 364
 365         // Show the time bar
 366         if(get_canvas_view()->get_canvas()->rend_desc().get_time_start()!=get_canvas_view()->get_canvas()->rend_desc().get_time_end())
 367                 get_canvas_view()->show_timebar();
 368
 369         // Bring back the tables if they were out before
 370         //if(prev_table_status)get_canvas_view()->show_tables();
 371
 372         // Refresh the work area
 373         get_work_area()->queue_draw();
 374
 375         App::toolbox->refresh();
 376 }
 377
 378 Smach::event_result
 379 StateCircle_Context::event_stop_handler(const Smach::event& x)
 380 {
 381         throw Smach::egress_exception();
 382 }
 383
 384 Smach::event_result
 385 StateCircle_Context::event_refresh_handler(const Smach::event& x)
 386 {
 387         refresh_ducks();
 388         return Smach::RESULT_ACCEPT;
 389 }
 390
 391 void
 392 StateCircle_Context::make_circle(const Point& _p1, const Point& _p2)
 393 {
 394         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Circle"));
 395         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 396
 397         Layer::Handle layer;
 398
 399         Canvas::Handle canvas(get_canvas_view()->get_canvas());
 400         int depth(0);
 401
 402         // we are temporarily using the layer to hold something
 403         layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
 404         if(layer)
 405         {
 406                 depth=layer->get_depth();
 407                 canvas=layer->get_canvas();
 408         }
 409
 410         const synfig::TransformStack& transform(get_canvas_view()->get_curr_transform_stack());
 411         const Point p1(transform.unperform(_p1));
 412         const Point p2(transform.unperform(_p2));
 413
 414         if(get_falloff() >= 0 && get_falloff() < CIRCLE_NUM_FALLOFF)
 415         {
 416
 417                 layer=get_canvas_interface()->add_layer_to("circle",canvas,depth);
 418
 419                 layer->set_param("pos",p1);
 420                 get_canvas_interface()->signal_layer_param_changed()(layer,"pos");
 421
 422                 layer->set_param("radius",(p2-p1).mag());
 423                 get_canvas_interface()->signal_layer_param_changed()(layer,"radius");
 424
 425                 layer->set_param("falloff",get_falloff());
 426                 get_canvas_interface()->signal_layer_param_changed()(layer,"falloff");
 427
 428                 layer->set_param("feather",get_feather());
 429                 get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
 430
 431                 layer->set_param("invert",get_invert());
 432                 get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 433
 434                 layer->set_param("blend_method",get_blend());
 435                 get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
 436
 437                 layer->set_description(get_id());
 438                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 439
 440                 no_egress_on_selection_change=true;
 441                 get_canvas_interface()->get_selection_manager()->clear_selected_layers();
 442                 get_canvas_interface()->get_selection_manager()->set_selected_layer(layer);
 443                 no_egress_on_selection_change=false;
 444         }
 445
 446         reset();
 447         increment_id();
 448 }
 449
 450 Smach::event_result
 451 StateCircle_Context::event_mouse_click_handler(const Smach::event& x)
 452 {
 453         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 454
 455         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DOWN && event.button==BUTTON_LEFT)
 456         {
 457                 point_holder=get_work_area()->snap_point_to_grid(event.pos);
 458                 etl::handle<Duck> duck=new Duck();
 459                 duck->set_point(point_holder);
 460                 duck->set_name("p1");
 461                 duck->set_type(Duck::TYPE_POSITION);
 462                 duck->set_editable(false);
 463                 get_work_area()->add_duck(duck);
 464
 465                 point2_duck=new Duck();
 466                 point2_duck->set_point(Vector(0,0));
 467                 point2_duck->set_name("radius");
 468                 point2_duck->set_origin(duck);
 469                 point2_duck->set_radius(true);
 470                 point2_duck->set_scalar(-1);
 471                 point2_duck->set_type(Duck::TYPE_RADIUS);
 472                 get_work_area()->add_duck(point2_duck);
 473
 474                 return Smach::RESULT_ACCEPT;
 475         }
 476
 477         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DRAG && event.button==BUTTON_LEFT)
 478         {
 479                 point2_duck->set_point(point_holder-get_work_area()->snap_point_to_grid(event.pos));
 480                 get_work_area()->queue_draw();
 481                 return Smach::RESULT_ACCEPT;
 482         }
 483
 484         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_UP && event.button==BUTTON_LEFT)
 485         {
 486                 make_circle(point_holder, get_work_area()->snap_point_to_grid(event.pos));
 487                 get_work_area()->clear_ducks();
 488                 return Smach::RESULT_ACCEPT;
 489         }
 490
 491         return Smach::RESULT_OK;
 492 }
 493
 494
 495 void
 496 StateCircle_Context::refresh_ducks()
 497 {
 498         get_work_area()->clear_ducks();
 499         get_work_area()->queue_draw();
 500 }