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 **
  10 **      This package is free software; you can redistribute it and/or
  11 **      modify it under the terms of the GNU General Public License as
  12 **      published by the Free Software Foundation; either version 2 of
  13 **      the License, or (at your option) any later version.
  14 **
  15 **      This package is distributed in the hope that it will be useful,
  16 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18 **      General Public License for more details.
  19 **      \endlegal
  20 */
  21 /* ========================================================================= */
  22
  23 /* === H E A D E R S ======================================================= */
  24
  25 #ifdef USING_PCH
  26 #       include "pch.h"
  27 #else
  28 #ifdef HAVE_CONFIG_H
  29 #       include <config.h>
  30 #endif
  31
  32 #include <gtkmm/dialog.h>
  33 #include <gtkmm/entry.h>
  34
  35 #include <synfig/valuenode_dynamiclist.h>
  36 #include <synfigapp/action_system.h>
  37
  38 #include "state_circle.h"
  39 #include "canvasview.h"
  40 #include "workarea.h"
  41 #include "app.h"
  42
  43 #include <synfigapp/action.h>
  44 #include "event_mouse.h"
  45 #include "event_layerclick.h"
  46 #include "toolbox.h"
  47 #include "dialog_tooloptions.h"
  48 #include <gtkmm/optionmenu.h>
  49 #include "duck.h"
  50 #include "widget_enum.h"
  51 #include <synfigapp/main.h>
  52
  53 #endif
  54
  55 /* === U S I N G =========================================================== */
  56
  57 using namespace std;
  58 using namespace etl;
  59 using namespace synfig;
  60 using namespace studio;
  61
  62 /* === M A C R O S ========================================================= */
  63 enum CircleFalloff
  64 {
  65         CIRCLE_SQUARED  =0,
  66         CIRCLE_INTERPOLATION_LINEAR     =1,
  67         CIRCLE_COSINE   =2,
  68         CIRCLE_SIGMOND  =3,
  69         CIRCLE_SQRT             =4,
  70         CIRCLE_NUM_FALLOFF
  71 };
  72
  73 /* === G L O B A L S ======================================================= */
  74
  75 StateCircle studio::state_circle;
  76
  77 /* === C L A S S E S & S T R U C T S ======================================= */
  78
  79 class studio::StateCircle_Context : public sigc::trackable
  80 {
  81         etl::handle<CanvasView> canvas_view_;
  82         CanvasView::IsWorking is_working;
  83
  84         Duckmatic::Push duckmatic_push;
  85
  86         Point point_holder;
  87
  88         etl::handle<Duck> point2_duck;
  89
  90         void refresh_ducks();
  91
  92         bool prev_workarea_layer_status_;
  93
  94         //Toolbox settings
  95         synfigapp::Settings& settings;
  96
  97         //Toolbox display
  98         Gtk::Table options_table;
  99
 100         Gtk::Entry              entry_id; //what to name the layer
 101
 102         Widget_Enum             enum_falloff;
 103         Widget_Enum             enum_blend;
 104
 105         Gtk::Adjustment adj_feather;
 106         Gtk::SpinButton spin_feather;
 107
 108         Gtk::CheckButton check_invert;
 109
 110 public:
 111
 112         synfig::String get_id()const { return entry_id.get_text(); }
 113         void set_id(const synfig::String& x) { return entry_id.set_text(x); }
 114
 115         int get_falloff()const { return enum_falloff.get_value(); }
 116         void set_falloff(int x) { return enum_falloff.set_value(x); }
 117
 118         int get_blend()const { return enum_blend.get_value(); }
 119         void set_blend(int x) { return enum_blend.set_value(x); }
 120
 121         Real get_feather()const { return adj_feather.get_value(); }
 122         void set_feather(Real f) { adj_feather.set_value(f); }
 123
 124         bool get_invert()const { return check_invert.get_active(); }
 125         void set_invert(bool i) { check_invert.set_active(i); }
 126
 127         void refresh_tool_options(); //to refresh the toolbox
 128
 129         //events
 130         Smach::event_result event_stop_handler(const Smach::event& x);
 131         Smach::event_result event_refresh_handler(const Smach::event& x);
 132         Smach::event_result event_mouse_click_handler(const Smach::event& x);
 133         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 134
 135         //constructor destructor
 136         StateCircle_Context(CanvasView* canvas_view);
 137         ~StateCircle_Context();
 138
 139         //Canvas interaction
 140         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 141         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 142         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 143         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 144
 145         //Modifying settings etc.
 146         void load_settings();
 147         void save_settings();
 148         void reset();
 149         void increment_id();
 150         bool no_egress_on_selection_change;
 151         Smach::event_result event_layer_selection_changed_handler(const Smach::event& x)
 152         {
 153                 if(!no_egress_on_selection_change)
 154                         throw Smach::egress_exception();
 155                 return Smach::RESULT_OK;
 156         }
 157
 158         void make_circle(const Point& p1, const Point& p2);
 159
 160 };      // END of class StateGradient_Context
 161
 162 /* === M E T H O D S ======================================================= */
 163
 164 StateCircle::StateCircle():
 165         Smach::state<StateCircle_Context>("circle")
 166 {
 167         insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StateCircle_Context::event_layer_selection_changed_handler));
 168         insert(event_def(EVENT_STOP,&StateCircle_Context::event_stop_handler));
 169         insert(event_def(EVENT_REFRESH,&StateCircle_Context::event_refresh_handler));
 170         insert(event_def(EVENT_REFRESH_DUCKS,&StateCircle_Context::event_refresh_handler));
 171         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateCircle_Context::event_mouse_click_handler));
 172         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DRAG,&StateCircle_Context::event_mouse_click_handler));
 173         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_UP,&StateCircle_Context::event_mouse_click_handler));
 174         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateCircle_Context::event_refresh_tool_options));
 175 }
 176
 177 StateCircle::~StateCircle()
 178 {
 179 }
 180
 181 void
 182 StateCircle_Context::load_settings()
 183 {
 184         String value;
 185
 186         //parse the arguments yargh!
 187         if(settings.get_value("circle.id",value))
 188                 set_id(value);
 189         else
 190                 set_id("Circle");
 191
 192         if(settings.get_value("circle.fallofftype",value) && value != "")
 193                 set_falloff(atoi(value.c_str()));
 194         else
 195                 set_falloff(2);
 196
 197         if(settings.get_value("circle.blend",value) && value != "")
 198                 set_blend(atoi(value.c_str()));
 199         else
 200                 set_blend(0);//(int)Color::BLEND_COMPOSITE); //0 should be blend composites value
 201
 202         if(settings.get_value("circle.feather",value))
 203                 set_feather(atof(value.c_str()));
 204         else
 205                 set_feather(0);
 206
 207         if(settings.get_value("circle.invert",value) && value != "0")
 208                 set_invert(true);
 209         else
 210                 set_invert(false);
 211 }
 212
 213 void
 214 StateCircle_Context::save_settings()
 215 {
 216         settings.set_value("circle.id",get_id());
 217         settings.set_value("circle.fallofftype",strprintf("%d",get_falloff()));
 218         settings.set_value("circle.blend",strprintf("%d",get_blend()));
 219         settings.set_value("circle.feather",strprintf("%f",(float)get_feather()));
 220         settings.set_value("circle.invert",get_invert()?"1":"0");
 221 }
 222
 223 void
 224 StateCircle_Context::reset()
 225 {
 226         refresh_ducks();
 227 }
 228
 229 void
 230 StateCircle_Context::increment_id()
 231 {
 232         String id(get_id());
 233         int number=1;
 234         int digits=0;
 235
 236         if(id.empty())
 237                 id="Circle";
 238
 239         // If there is a number
 240         // already at the end of the
 241         // id, then remove it.
 242         if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
 243         {
 244                 // figure out how many digits it is
 245                 for(digits=0;(int)id.size()-1>=digits && id[id.size()-1-digits]<='9' && id[id.size()-1-digits]>='0';digits++)while(false);
 246
 247                 String str_number;
 248                 str_number=String(id,id.size()-digits,id.size());
 249                 id=String(id,0,id.size()-digits);
 250
 251                 number=atoi(str_number.c_str());
 252         }
 253         else
 254         {
 255                 number=1;
 256                 digits=3;
 257         }
 258
 259         number++;
 260
 261         // Add the number back onto the id
 262         {
 263                 const String format(strprintf("%%0%dd",digits));
 264                 id+=strprintf(format.c_str(),number);
 265         }
 266
 267         // Set the ID
 268         set_id(id);
 269 }
 270
 271 StateCircle_Context::StateCircle_Context(CanvasView* canvas_view):
 272         canvas_view_(canvas_view),
 273         is_working(*canvas_view),
 274         duckmatic_push(get_work_area()),
 275         prev_workarea_layer_status_(get_work_area()->allow_layer_clicks),
 276         settings(synfigapp::Main::get_selected_input_device()->settings()),
 277         entry_id(),
 278         adj_feather(0,0,1,0.01,0.1),
 279         spin_feather(adj_feather,0.1,3),
 280         check_invert(_("Invert"))
 281 {
 282         no_egress_on_selection_change=false;
 283         // Set up the tool options dialog
 284         //options_table.attach(*manage(new Gtk::Label(_("Circle Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 285         options_table.attach(entry_id, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 286
 287         enum_falloff.set_param_desc(ParamDesc("falloff")
 288                 .set_local_name(_("Falloff"))
 289                 .set_description(_("Determines the falloff function for the feather"))
 290                 .set_hint("enum")
 291                 .add_enum_value(CIRCLE_INTERPOLATION_LINEAR,"linear",_("Linear"))
 292                 .add_enum_value(CIRCLE_SQUARED,"squared",_("Squared"))
 293                 .add_enum_value(CIRCLE_SQRT,"sqrt",_("Square Root"))
 294                 .add_enum_value(CIRCLE_SIGMOND,"sigmond",_("Sigmond"))
 295                 .add_enum_value(CIRCLE_COSINE,"cosine",_("Cosine")));
 296
 297         enum_blend.set_param_desc(ParamDesc(Color::BLEND_COMPOSITE,"blend_method")
 298                 .set_local_name(_("Blend Method"))
 299                 .set_description(_("Defines the blend method to be used for circles")));
 300
 301         load_settings();
 302
 303         //feather stuff
 304         options_table.attach(*manage(new Gtk::Label(_("Feather:"))), 0, 1, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 305         options_table.attach(spin_feather, 1, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 306         options_table.attach(enum_falloff, 0, 2, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 307         options_table.attach(enum_blend, 0, 2, 5, 6, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 308
 309         //invert flag
 310         options_table.attach(check_invert, 0, 2, 6, 7, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 311
 312         options_table.show_all();
 313
 314         refresh_tool_options();
 315         App::dialog_tool_options->present();
 316
 317         // Turn off layer clicking
 318         get_work_area()->allow_layer_clicks=false;
 319
 320         // clear out the ducks
 321         get_work_area()->clear_ducks();
 322
 323         // Refresh the work area
 324         get_work_area()->queue_draw();
 325
 326         // Hide the tables if they are showing
 327         //prev_table_status=get_canvas_view()->tables_are_visible();
 328         //if(prev_table_status)get_canvas_view()->hide_tables();
 329
 330         // Hide the time bar
 331         //get_canvas_view()->hide_timebar();
 332
 333         // Connect a signal
 334         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StateCircle_Context::on_user_click));
 335         get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 336
 337         App::toolbox->refresh();
 338 }
 339
 340 void
 341 StateCircle_Context::refresh_tool_options()
 342 {
 343         App::dialog_tool_options->clear();
 344         App::dialog_tool_options->set_widget(options_table);
 345         App::dialog_tool_options->set_local_name(_("Circle Tool"));
 346         App::dialog_tool_options->set_name("circle");
 347 }
 348
 349 Smach::event_result
 350 StateCircle_Context::event_refresh_tool_options(const Smach::event& x)
 351 {
 352         refresh_tool_options();
 353         return Smach::RESULT_ACCEPT;
 354 }
 355
 356 StateCircle_Context::~StateCircle_Context()
 357 {
 358         save_settings();
 359
 360         // Restore layer clicking
 361         get_work_area()->allow_layer_clicks=prev_workarea_layer_status_;
 362         get_canvas_view()->work_area->reset_cursor();
 363
 364         App::dialog_tool_options->clear();
 365
 366         // Show the time bar
 367         if(get_canvas_view()->get_canvas()->rend_desc().get_time_start()!=get_canvas_view()->get_canvas()->rend_desc().get_time_end())
 368                 get_canvas_view()->show_timebar();
 369
 370         // Bring back the tables if they were out before
 371         //if(prev_table_status)get_canvas_view()->show_tables();
 372
 373         // Refresh the work area
 374         get_work_area()->queue_draw();
 375
 376         App::toolbox->refresh();
 377 }
 378
 379 Smach::event_result
 380 StateCircle_Context::event_stop_handler(const Smach::event& x)
 381 {
 382         throw Smach::egress_exception();
 383 }
 384
 385 Smach::event_result
 386 StateCircle_Context::event_refresh_handler(const Smach::event& x)
 387 {
 388         refresh_ducks();
 389         return Smach::RESULT_ACCEPT;
 390 }
 391
 392 void
 393 StateCircle_Context::make_circle(const Point& _p1, const Point& _p2)
 394 {
 395         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Circle"));
 396         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 397
 398         Layer::Handle layer;
 399
 400         Canvas::Handle canvas(get_canvas_view()->get_canvas());
 401         int depth(0);
 402
 403         // we are temporarily using the layer to hold something
 404         layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
 405         if(layer)
 406         {
 407                 depth=layer->get_depth();
 408                 canvas=layer->get_canvas();
 409         }
 410
 411         const synfig::TransformStack& transform(get_canvas_view()->get_curr_transform_stack());
 412         const Point p1(transform.unperform(_p1));
 413         const Point p2(transform.unperform(_p2));
 414
 415         if(get_falloff() >= 0 && get_falloff() < CIRCLE_NUM_FALLOFF)
 416         {
 417
 418                 layer=get_canvas_interface()->add_layer_to("circle",canvas,depth);
 419
 420                 layer->set_param("pos",p1);
 421                 get_canvas_interface()->signal_layer_param_changed()(layer,"pos");
 422
 423                 layer->set_param("radius",(p2-p1).mag());
 424                 get_canvas_interface()->signal_layer_param_changed()(layer,"radius");
 425
 426                 layer->set_param("falloff",get_falloff());
 427                 get_canvas_interface()->signal_layer_param_changed()(layer,"falloff");
 428
 429                 layer->set_param("feather",get_feather());
 430                 get_canvas_interface()->signal_layer_param_changed()(layer,"feather");
 431
 432                 layer->set_param("invert",get_invert());
 433                 get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 434
 435                 layer->set_param("blend_method",get_blend());
 436                 get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
 437
 438                 layer->set_description(get_id());
 439                 get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 440
 441                 no_egress_on_selection_change=true;
 442                 get_canvas_interface()->get_selection_manager()->clear_selected_layers();
 443                 get_canvas_interface()->get_selection_manager()->set_selected_layer(layer);
 444                 no_egress_on_selection_change=false;
 445         }
 446
 447         reset();
 448         increment_id();
 449 }
 450
 451 Smach::event_result
 452 StateCircle_Context::event_mouse_click_handler(const Smach::event& x)
 453 {
 454         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 455
 456         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DOWN && event.button==BUTTON_LEFT)
 457         {
 458                 point_holder=get_work_area()->snap_point_to_grid(event.pos);
 459                 etl::handle<Duck> duck=new Duck();
 460                 duck->set_point(point_holder);
 461                 duck->set_name("p1");
 462                 duck->set_type(Duck::TYPE_POSITION);
 463                 duck->set_editable(false);
 464                 get_work_area()->add_duck(duck);
 465
 466                 point2_duck=new Duck();
 467                 point2_duck->set_point(Vector(0,0));
 468                 point2_duck->set_name("radius");
 469                 point2_duck->set_origin(duck);
 470                 point2_duck->set_radius(true);
 471                 point2_duck->set_scalar(-1);
 472                 point2_duck->set_type(Duck::TYPE_RADIUS);
 473                 get_work_area()->add_duck(point2_duck);
 474
 475                 return Smach::RESULT_ACCEPT;
 476         }
 477
 478         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DRAG && event.button==BUTTON_LEFT)
 479         {
 480                 point2_duck->set_point(point_holder-get_work_area()->snap_point_to_grid(event.pos));
 481                 get_work_area()->queue_draw();
 482                 return Smach::RESULT_ACCEPT;
 483         }
 484
 485         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_UP && event.button==BUTTON_LEFT)
 486         {
 487                 make_circle(point_holder, get_work_area()->snap_point_to_grid(event.pos));
 488                 get_work_area()->clear_ducks();
 489                 return Smach::RESULT_ACCEPT;
 490         }
 491
 492         return Smach::RESULT_OK;
 493 }
 494
 495
 496 void
 497 StateCircle_Context::refresh_ducks()
 498 {
 499         get_work_area()->clear_ducks();
 500         get_work_area()->queue_draw();
 501 }