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