synfig-studio/trunk/src/gtkmm/state_polygon.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file state_polygon.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) 2007 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_polygon.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 <synfigapp/main.h>
  50
  51 #include "general.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
  64 /* === G L O B A L S ======================================================= */
  65
  66 StatePolygon studio::state_polygon;
  67
  68 /* === C L A S S E S & S T R U C T S ======================================= */
  69
  70 class studio::StatePolygon_Context : public sigc::trackable
  71 {
  72         etl::handle<CanvasView> canvas_view_;
  73         CanvasView::IsWorking is_working;
  74
  75         bool prev_table_status;
  76         bool prev_workarea_layer_status_;
  77
  78         Gtk::Menu menu;
  79
  80         Duckmatic::Push duckmatic_push;
  81
  82         std::list<synfig::Point> polygon_point_list;
  83         synfigapp::Settings& settings;
  84
  85
  86         bool on_polygon_duck_change(const synfig::Point &point, std::list<synfig::Point>::iterator iter);
  87
  88
  89         void popup_handle_menu(synfigapp::ValueDesc value_desc);
  90
  91
  92         void refresh_ducks();
  93
  94         Gtk::Table options_table;
  95         Gtk::Entry entry_id;
  96         Gtk::Button button_make;
  97
  98 public:
  99         synfig::String get_id()const { return entry_id.get_text(); }
 100         void set_id(const synfig::String& x) { return entry_id.set_text(x); }
 101
 102         Smach::event_result event_stop_handler(const Smach::event& x);
 103
 104         Smach::event_result event_refresh_handler(const Smach::event& x);
 105
 106         Smach::event_result event_mouse_click_handler(const Smach::event& x);
 107         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 108         void refresh_tool_options();
 109
 110         StatePolygon_Context(CanvasView* canvas_view);
 111
 112         ~StatePolygon_Context();
 113
 114         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 115         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 116         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 117         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 118
 119         //void on_user_click(synfig::Point point);
 120         void load_settings();
 121         void save_settings();
 122         void reset();
 123         void increment_id();
 124         bool egress_on_selection_change;
 125         Smach::event_result event_layer_selection_changed_handler(const Smach::event& /*x*/)
 126         {
 127                 if(egress_on_selection_change)
 128                         throw Smach::egress_exception();
 129                 return Smach::RESULT_OK;
 130         }
 131
 132         void run();
 133 };      // END of class StatePolygon_Context
 134
 135 /* === M E T H O D S ======================================================= */
 136
 137 StatePolygon::StatePolygon():
 138         Smach::state<StatePolygon_Context>("polygon")
 139 {
 140         insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StatePolygon_Context::event_layer_selection_changed_handler));
 141         insert(event_def(EVENT_STOP,&StatePolygon_Context::event_stop_handler));
 142         insert(event_def(EVENT_REFRESH,&StatePolygon_Context::event_refresh_handler));
 143         insert(event_def(EVENT_REFRESH_DUCKS,&StatePolygon_Context::event_refresh_handler));
 144         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StatePolygon_Context::event_mouse_click_handler));
 145         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StatePolygon_Context::event_refresh_tool_options));
 146 }
 147
 148 StatePolygon::~StatePolygon()
 149 {
 150 }
 151
 152 void
 153 StatePolygon_Context::load_settings()
 154 {
 155         String value;
 156
 157         if(settings.get_value("polygon.id",value))
 158                 set_id(value);
 159         else
 160                 set_id("Polygon");
 161 }
 162
 163 void
 164 StatePolygon_Context::save_settings()
 165 {
 166         settings.set_value("polygon.id",get_id().c_str());
 167 }
 168
 169 void
 170 StatePolygon_Context::reset()
 171 {
 172         polygon_point_list.clear();
 173         refresh_ducks();
 174 }
 175
 176 void
 177 StatePolygon_Context::increment_id()
 178 {
 179         String id(get_id());
 180         int number=1;
 181         int digits=0;
 182
 183         if(id.empty())
 184                 id="Polygon";
 185
 186         // If there is a number
 187         // already at the end of the
 188         // id, then remove it.
 189         if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
 190         {
 191                 // figure out how many digits it is
 192                 for (digits = 0;
 193                          (int)id.size()-1 >= digits && id[id.size()-1-digits] <= '9' && id[id.size()-1-digits] >= '0';
 194                          digits++)
 195                         ;
 196
 197                 String str_number;
 198                 str_number=String(id,id.size()-digits,id.size());
 199                 id=String(id,0,id.size()-digits);
 200
 201                 number=atoi(str_number.c_str());
 202         }
 203         else
 204         {
 205                 number=1;
 206                 digits=3;
 207         }
 208
 209         number++;
 210
 211         // Add the number back onto the id
 212         {
 213                 const String format(strprintf("%%0%dd",digits));
 214                 id+=strprintf(format.c_str(),number);
 215         }
 216
 217         // Set the ID
 218         set_id(id);
 219 }
 220
 221 StatePolygon_Context::StatePolygon_Context(CanvasView* canvas_view):
 222         canvas_view_(canvas_view),
 223         is_working(*canvas_view),
 224         prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
 225         duckmatic_push(get_work_area()),
 226         settings(synfigapp::Main::get_selected_input_device()->settings()),
 227         entry_id(),
 228         button_make(_("Make"))
 229 {
 230         egress_on_selection_change=true;
 231         load_settings();
 232
 233         // Set up the tool options dialog
 234         //options_table.attach(*manage(new Gtk::Label(_("Polygon Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 235         options_table.attach(entry_id, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 236         //options_table.attach(button_make, 0, 2, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 237         button_make.signal_pressed().connect(sigc::mem_fun(*this,&StatePolygon_Context::run));
 238         options_table.show_all();
 239         refresh_tool_options();
 240         App::dialog_tool_options->present();
 241
 242
 243         // Turn off layer clicking
 244         get_work_area()->set_allow_layer_clicks(false);
 245
 246         // clear out the ducks
 247         get_work_area()->clear_ducks();
 248
 249         // Refresh the work area
 250         get_work_area()->queue_draw();
 251
 252         get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 253
 254         // Hide the tables if they are showing
 255         prev_table_status=get_canvas_view()->tables_are_visible();
 256         if(prev_table_status)get_canvas_view()->hide_tables();
 257
 258         // Disable the time bar
 259         get_canvas_view()->set_sensitive_timebar(false);
 260
 261         // Connect a signal
 262         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_user_click));
 263
 264         App::toolbox->refresh();
 265 }
 266
 267 void
 268 StatePolygon_Context::refresh_tool_options()
 269 {
 270         App::dialog_tool_options->clear();
 271         App::dialog_tool_options->set_widget(options_table);
 272
 273         App::dialog_tool_options->set_local_name(_("Polygon Tool"));
 274         App::dialog_tool_options->set_name("polygon");
 275
 276         App::dialog_tool_options->add_button(
 277                 Gtk::StockID("gtk-execute"),
 278                 _("Make Polygon")
 279         )->signal_clicked().connect(
 280                 sigc::mem_fun(
 281                         *this,
 282                         &StatePolygon_Context::run
 283                 )
 284         );
 285
 286         App::dialog_tool_options->add_button(
 287                 Gtk::StockID("gtk-clear"),
 288                 _("Clear current Polygon")
 289         )->signal_clicked().connect(
 290                 sigc::mem_fun(
 291                         *this,
 292                         &StatePolygon_Context::reset
 293                 )
 294         );
 295 }
 296
 297 Smach::event_result
 298 StatePolygon_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 299 {
 300         refresh_tool_options();
 301         return Smach::RESULT_ACCEPT;
 302 }
 303
 304 StatePolygon_Context::~StatePolygon_Context()
 305 {
 306         run();
 307
 308         save_settings();
 309         // Restore layer clicking
 310         get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
 311
 312         App::dialog_tool_options->clear();
 313
 314         get_canvas_view()->work_area->reset_cursor();
 315
 316         // Enable the time bar
 317         get_canvas_view()->set_sensitive_timebar(true);
 318
 319         // Bring back the tables if they were out before
 320         if(prev_table_status)get_canvas_view()->show_tables();
 321
 322         // Refresh the work area
 323         get_work_area()->queue_draw();
 324
 325         App::toolbox->refresh();
 326 }
 327
 328 Smach::event_result
 329 StatePolygon_Context::event_stop_handler(const Smach::event& /*x*/)
 330 {
 331         synfig::info("STATE RotoPolygon: Received Stop Event");
 332         //throw Smach::egress_exception();
 333         reset();
 334         return Smach::RESULT_ACCEPT;
 335
 336 }
 337
 338 Smach::event_result
 339 StatePolygon_Context::event_refresh_handler(const Smach::event& /*x*/)
 340 {
 341         synfig::info("STATE RotoPolygon: Received Refresh Event");
 342         refresh_ducks();
 343         return Smach::RESULT_ACCEPT;
 344 }
 345
 346 void
 347 StatePolygon_Context::run()
 348 {
 349         if(polygon_point_list.empty())
 350                 return;
 351
 352         if(polygon_point_list.size()<3)
 353         {
 354                 get_canvas_view()->get_ui_interface()->error("You need at least 3 points to create a polygon");
 355                 return;
 356         }
 357                 Layer::Handle layer;
 358                 Canvas::Handle canvas(get_canvas_view()->get_canvas());
 359                 int depth(0);
 360
 361                 // we are temporarily using the layer to hold something
 362                 layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
 363                 if(layer)
 364                 {
 365                         depth=layer->get_depth();
 366                         canvas=layer->get_canvas();
 367                 }
 368
 369                 {
 370                         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Polygon"));
 371                         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 372
 373                         Layer::Handle layer(get_canvas_interface()->add_layer_to("polygon",canvas,depth));
 374                         layer->set_description(get_id());
 375                         get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 376
 377                         layer->disconnect_dynamic_param("vector_list");
 378                         if(!layer->set_param("vector_list",polygon_point_list))
 379                         {
 380                                 group.cancel();
 381                                 get_canvas_view()->get_ui_interface()->error("Unable to set layer parameter");
 382                                 return;
 383                         }
 384
 385                         {
 386                                 synfigapp::Action::Handle action(synfigapp::Action::create("value_desc_convert"));
 387                                 synfigapp::ValueDesc value_desc(layer,"vector_list");
 388                                 action->set_param("canvas",get_canvas());
 389                                 action->set_param("canvas_interface",get_canvas_interface());
 390                                 action->set_param("value_desc",value_desc);
 391                                 action->set_param("type","dynamic_list");
 392                                 action->set_param("time",get_canvas_interface()->get_time());
 393                                 if(!get_canvas_interface()->get_instance()->perform_action(action))
 394                                 {
 395                                         group.cancel();
 396                                         get_canvas_view()->get_ui_interface()->error("Unable to execute action \"value_desc_convert\"");
 397                                         return;
 398                                 }
 399                         }
 400                         egress_on_selection_change=false;
 401                         get_canvas_interface()->get_selection_manager()->clear_selected_layers();
 402                         get_canvas_interface()->get_selection_manager()->set_selected_layer(layer);
 403                         egress_on_selection_change=true;
 404                         //get_canvas_interface()->signal_dirty_preview()();
 405                 }
 406 /*
 407                 else
 408                 {
 409                         ValueNode::Handle value_node=(ValueNode_Const::create(polygon_point_list));
 410                         std::string valuenode_name="Poly";
 411                         while(studio::App::dialog_entry("New Polygon", "Please enter the new ID for this value_node",valuenode_name))
 412                                 if(get_canvas_interface()->add_value_node(value_node,valuenode_name))
 413                                         return true;
 414                 }
 415 */
 416         reset();
 417         increment_id();
 418 }
 419
 420 Smach::event_result
 421 StatePolygon_Context::event_mouse_click_handler(const Smach::event& x)
 422 {
 423         synfig::info("STATE ROTOPOLYGON: Received mouse button down Event");
 424         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 425         switch(event.button)
 426         {
 427         case BUTTON_LEFT:
 428                 polygon_point_list.push_back(get_work_area()->snap_point_to_grid(event.pos));
 429                 refresh_ducks();
 430                 return Smach::RESULT_ACCEPT;
 431
 432         case BUTTON_RIGHT: // Intercept the right-button click to short-circuit the pop-up menu
 433                 if (!getenv("SYNFIG_ENABLE_POPUP_MENU_IN_ALL_TOOLS"))
 434                         return Smach::RESULT_ACCEPT;
 435
 436         default:
 437                 return Smach::RESULT_OK;
 438         }
 439 }
 440
 441
 442 void
 443 StatePolygon_Context::refresh_ducks()
 444 {
 445         get_work_area()->clear_ducks();
 446
 447         if(polygon_point_list.empty()) return;
 448
 449         std::list<synfig::Point>::iterator iter=polygon_point_list.begin();
 450
 451         etl::handle<WorkArea::Duck> duck;
 452         duck=new WorkArea::Duck(*iter);
 453         duck->set_editable(true);
 454         duck->signal_edited().connect(
 455                 sigc::bind(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_polygon_duck_change),iter)
 456         );
 457         duck->signal_user_click(0).connect(sigc::mem_fun(*this,&StatePolygon_Context::run));
 458
 459         get_work_area()->add_duck(duck);
 460
 461         for(++iter;iter!=polygon_point_list.end();++iter)
 462         {
 463                 etl::handle<WorkArea::Bezier> bezier(new WorkArea::Bezier());
 464                 bezier->p1=bezier->c1=duck;
 465
 466                 duck=new WorkArea::Duck(*iter);
 467                 duck->set_editable(true);
 468                 duck->set_name(strprintf("%x",&*iter));
 469                 duck->signal_edited().connect(
 470                         sigc::bind(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_polygon_duck_change),iter)
 471                 );
 472
 473                 get_work_area()->add_duck(duck);
 474
 475                 bezier->p2=bezier->c2=duck;
 476                 get_work_area()->add_bezier(bezier);
 477         }
 478         get_work_area()->queue_draw();
 479 }
 480
 481
 482 bool
 483 StatePolygon_Context::on_polygon_duck_change(const synfig::Point &point, std::list<synfig::Point>::iterator iter)
 484 {
 485         *iter=point;
 486         return true;
 487 }