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, 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_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::CheckButton checkbutton_invert;
  96         Gtk::Entry entry_id;
  97         Gtk::Button button_make;
  98
  99 public:
 100         synfig::String get_id()const { return entry_id.get_text(); }
 101         void set_id(const synfig::String& x) { return entry_id.set_text(x); }
 102
 103         bool get_invert()const { return checkbutton_invert.get_active(); }
 104         void set_invert(bool i) { checkbutton_invert.set_active(i); }
 105
 106         Smach::event_result event_stop_handler(const Smach::event& x);
 107
 108         Smach::event_result event_refresh_handler(const Smach::event& x);
 109
 110         Smach::event_result event_mouse_click_handler(const Smach::event& x);
 111         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 112         void refresh_tool_options();
 113
 114         StatePolygon_Context(CanvasView* canvas_view);
 115
 116         ~StatePolygon_Context();
 117
 118         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 119         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 120         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 121         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 122
 123         //void on_user_click(synfig::Point point);
 124         void load_settings();
 125         void save_settings();
 126         void reset();
 127         void increment_id();
 128         bool egress_on_selection_change;
 129         Smach::event_result event_layer_selection_changed_handler(const Smach::event& /*x*/)
 130         {
 131                 if(egress_on_selection_change)
 132                         throw Smach::egress_exception();
 133                 return Smach::RESULT_OK;
 134         }
 135
 136         void run();
 137 };      // END of class StatePolygon_Context
 138
 139 /* === M E T H O D S ======================================================= */
 140
 141 StatePolygon::StatePolygon():
 142         Smach::state<StatePolygon_Context>("polygon")
 143 {
 144         insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StatePolygon_Context::event_layer_selection_changed_handler));
 145         insert(event_def(EVENT_STOP,&StatePolygon_Context::event_stop_handler));
 146         insert(event_def(EVENT_REFRESH,&StatePolygon_Context::event_refresh_handler));
 147         insert(event_def(EVENT_REFRESH_DUCKS,&StatePolygon_Context::event_refresh_handler));
 148         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StatePolygon_Context::event_mouse_click_handler));
 149         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StatePolygon_Context::event_refresh_tool_options));
 150 }
 151
 152 StatePolygon::~StatePolygon()
 153 {
 154 }
 155
 156 void
 157 StatePolygon_Context::load_settings()
 158 {
 159         String value;
 160
 161         if(settings.get_value("polygon.id",value))
 162                 set_id(value);
 163         else
 164                 set_id("Polygon");
 165
 166         if(settings.get_value("polygon.invert",value) && value != "0")
 167                 set_invert(true);
 168         else
 169                 set_invert(false);
 170 }
 171
 172 void
 173 StatePolygon_Context::save_settings()
 174 {
 175         settings.set_value("polygon.id",get_id().c_str());
 176         settings.set_value("polygon.invert",get_invert()?"1":"0");
 177 }
 178
 179 void
 180 StatePolygon_Context::reset()
 181 {
 182         polygon_point_list.clear();
 183         refresh_ducks();
 184 }
 185
 186 void
 187 StatePolygon_Context::increment_id()
 188 {
 189         String id(get_id());
 190         int number=1;
 191         int digits=0;
 192
 193         if(id.empty())
 194                 id="Polygon";
 195
 196         // If there is a number
 197         // already at the end of the
 198         // id, then remove it.
 199         if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
 200         {
 201                 // figure out how many digits it is
 202                 for (digits = 0;
 203                          (int)id.size()-1 >= digits && id[id.size()-1-digits] <= '9' && id[id.size()-1-digits] >= '0';
 204                          digits++)
 205                         ;
 206
 207                 String str_number;
 208                 str_number=String(id,id.size()-digits,id.size());
 209                 id=String(id,0,id.size()-digits);
 210
 211                 number=atoi(str_number.c_str());
 212         }
 213         else
 214         {
 215                 number=1;
 216                 digits=3;
 217         }
 218
 219         number++;
 220
 221         // Add the number back onto the id
 222         {
 223                 const String format(strprintf("%%0%dd",digits));
 224                 id+=strprintf(format.c_str(),number);
 225         }
 226
 227         // Set the ID
 228         set_id(id);
 229 }
 230
 231 StatePolygon_Context::StatePolygon_Context(CanvasView* canvas_view):
 232         canvas_view_(canvas_view),
 233         is_working(*canvas_view),
 234         prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
 235         duckmatic_push(get_work_area()),
 236         settings(synfigapp::Main::get_selected_input_device()->settings()),
 237         entry_id(),
 238         checkbutton_invert(_("Invert")),
 239         button_make(_("Make"))
 240 {
 241         egress_on_selection_change=true;
 242         load_settings();
 243
 244         // Set up the tool options dialog
 245         options_table.attach(*manage(new Gtk::Label(_("Polygon Tool"))),        0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 246         options_table.attach(entry_id,                                                                          0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 247
 248         //invert flag
 249         options_table.attach(checkbutton_invert,                                                        0, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 250
 251         //options_table.attach(button_make, 0, 2, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 252         button_make.signal_pressed().connect(sigc::mem_fun(*this,&StatePolygon_Context::run));
 253         options_table.show_all();
 254         refresh_tool_options();
 255         App::dialog_tool_options->present();
 256
 257
 258         // Turn off layer clicking
 259         get_work_area()->set_allow_layer_clicks(false);
 260
 261         // clear out the ducks
 262         get_work_area()->clear_ducks();
 263
 264         // Refresh the work area
 265         get_work_area()->queue_draw();
 266
 267         get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 268
 269         // Hide the tables if they are showing
 270         prev_table_status=get_canvas_view()->tables_are_visible();
 271         if(prev_table_status)get_canvas_view()->hide_tables();
 272
 273         // Disable the time bar
 274         get_canvas_view()->set_sensitive_timebar(false);
 275
 276         // Connect a signal
 277         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_user_click));
 278
 279         App::toolbox->refresh();
 280 }
 281
 282 void
 283 StatePolygon_Context::refresh_tool_options()
 284 {
 285         App::dialog_tool_options->clear();
 286         App::dialog_tool_options->set_widget(options_table);
 287
 288         App::dialog_tool_options->set_local_name(_("Polygon Tool"));
 289         App::dialog_tool_options->set_name("polygon");
 290
 291         App::dialog_tool_options->add_button(
 292                 Gtk::StockID("gtk-execute"),
 293                 _("Make Polygon")
 294         )->signal_clicked().connect(
 295                 sigc::mem_fun(
 296                         *this,
 297                         &StatePolygon_Context::run
 298                 )
 299         );
 300
 301         App::dialog_tool_options->add_button(
 302                 Gtk::StockID("gtk-clear"),
 303                 _("Clear current Polygon")
 304         )->signal_clicked().connect(
 305                 sigc::mem_fun(
 306                         *this,
 307                         &StatePolygon_Context::reset
 308                 )
 309         );
 310 }
 311
 312 Smach::event_result
 313 StatePolygon_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 314 {
 315         refresh_tool_options();
 316         return Smach::RESULT_ACCEPT;
 317 }
 318
 319 StatePolygon_Context::~StatePolygon_Context()
 320 {
 321         run();
 322
 323         save_settings();
 324         // Restore layer clicking
 325         get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
 326
 327         App::dialog_tool_options->clear();
 328
 329         get_canvas_view()->work_area->reset_cursor();
 330
 331         // Enable the time bar
 332         get_canvas_view()->set_sensitive_timebar(true);
 333
 334         // Bring back the tables if they were out before
 335         if(prev_table_status)get_canvas_view()->show_tables();
 336
 337         // Refresh the work area
 338         get_work_area()->queue_draw();
 339
 340         App::toolbox->refresh();
 341 }
 342
 343 Smach::event_result
 344 StatePolygon_Context::event_stop_handler(const Smach::event& /*x*/)
 345 {
 346         synfig::info("STATE RotoPolygon: Received Stop Event");
 347         //throw Smach::egress_exception();
 348         reset();
 349         return Smach::RESULT_ACCEPT;
 350
 351 }
 352
 353 Smach::event_result
 354 StatePolygon_Context::event_refresh_handler(const Smach::event& /*x*/)
 355 {
 356         synfig::info("STATE RotoPolygon: Received Refresh Event");
 357         refresh_ducks();
 358         return Smach::RESULT_ACCEPT;
 359 }
 360
 361 void
 362 StatePolygon_Context::run()
 363 {
 364         if(polygon_point_list.empty())
 365                 return;
 366
 367         if(polygon_point_list.size()<3)
 368         {
 369                 get_canvas_view()->get_ui_interface()->error("You need at least 3 points to create a polygon");
 370                 return;
 371         }
 372                 Layer::Handle layer;
 373                 Canvas::Handle canvas(get_canvas_view()->get_canvas());
 374                 int depth(0);
 375
 376                 // we are temporarily using the layer to hold something
 377                 layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
 378                 if(layer)
 379                 {
 380                         depth=layer->get_depth();
 381                         canvas=layer->get_canvas();
 382                 }
 383
 384                 {
 385                         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Polygon"));
 386                         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 387
 388                         Layer::Handle layer(get_canvas_interface()->add_layer_to("polygon",canvas,depth));
 389
 390                         layer->set_param("invert",get_invert());
 391                         get_canvas_interface()->signal_layer_param_changed()(layer,"invert");
 392
 393                         layer->set_description(get_id());
 394                         get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 395
 396                         layer->disconnect_dynamic_param("vector_list");
 397                         if(!layer->set_param("vector_list",polygon_point_list))
 398                         {
 399                                 group.cancel();
 400                                 get_canvas_view()->get_ui_interface()->error("Unable to set layer parameter");
 401                                 return;
 402                         }
 403
 404                         {
 405                                 synfigapp::Action::Handle action(synfigapp::Action::create("value_desc_convert"));
 406                                 synfigapp::ValueDesc value_desc(layer,"vector_list");
 407                                 action->set_param("canvas",get_canvas());
 408                                 action->set_param("canvas_interface",get_canvas_interface());
 409                                 action->set_param("value_desc",value_desc);
 410                                 action->set_param("type","dynamic_list");
 411                                 action->set_param("time",get_canvas_interface()->get_time());
 412                                 if(!get_canvas_interface()->get_instance()->perform_action(action))
 413                                 {
 414                                         group.cancel();
 415                                         get_canvas_view()->get_ui_interface()->error("Unable to execute action \"value_desc_convert\"");
 416                                         return;
 417                                 }
 418                         }
 419                         egress_on_selection_change=false;
 420                         synfigapp::SelectionManager::LayerList layer_selection;
 421                         if (!getenv("SYNFIG_TOOLS_CLEAR_SELECTION"))
 422                                 layer_selection = get_canvas_view()->get_selection_manager()->get_selected_layers();
 423                         get_canvas_interface()->get_selection_manager()->clear_selected_layers();
 424                         layer_selection.push_back(layer);
 425                         get_canvas_interface()->get_selection_manager()->set_selected_layers(layer_selection);
 426                         egress_on_selection_change=true;
 427                         //get_canvas_interface()->signal_dirty_preview()();
 428                 }
 429 /*
 430                 else
 431                 {
 432                         ValueNode::Handle value_node=(ValueNode_Const::create(polygon_point_list));
 433                         std::string valuenode_name="Poly";
 434                         while(studio::App::dialog_entry("New Polygon", "Please enter the new ID for this value_node",valuenode_name))
 435                                 if(get_canvas_interface()->add_value_node(value_node,valuenode_name))
 436                                         return true;
 437                 }
 438 */
 439         reset();
 440         increment_id();
 441 }
 442
 443 Smach::event_result
 444 StatePolygon_Context::event_mouse_click_handler(const Smach::event& x)
 445 {
 446         synfig::info("STATE ROTOPOLYGON: Received mouse button down Event");
 447         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 448         switch(event.button)
 449         {
 450         case BUTTON_LEFT:
 451                 polygon_point_list.push_back(get_work_area()->snap_point_to_grid(event.pos));
 452                 refresh_ducks();
 453                 return Smach::RESULT_ACCEPT;
 454
 455         case BUTTON_RIGHT: // Intercept the right-button click to short-circuit the pop-up menu
 456                 if (!getenv("SYNFIG_ENABLE_POPUP_MENU_IN_ALL_TOOLS"))
 457                         return Smach::RESULT_ACCEPT;
 458
 459         default:
 460                 return Smach::RESULT_OK;
 461         }
 462 }
 463
 464
 465 void
 466 StatePolygon_Context::refresh_ducks()
 467 {
 468         get_work_area()->clear_ducks();
 469
 470         if(polygon_point_list.empty()) return;
 471
 472         std::list<synfig::Point>::iterator iter=polygon_point_list.begin();
 473
 474         etl::handle<WorkArea::Duck> duck;
 475         duck=new WorkArea::Duck(*iter);
 476         duck->set_editable(true);
 477         duck->signal_edited().connect(
 478                 sigc::bind(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_polygon_duck_change),iter)
 479         );
 480         duck->signal_user_click(0).connect(sigc::mem_fun(*this,&StatePolygon_Context::run));
 481
 482         get_work_area()->add_duck(duck);
 483
 484         for(++iter;iter!=polygon_point_list.end();++iter)
 485         {
 486                 etl::handle<WorkArea::Bezier> bezier(new WorkArea::Bezier());
 487                 bezier->p1=bezier->c1=duck;
 488
 489                 duck=new WorkArea::Duck(*iter);
 490                 duck->set_editable(true);
 491                 duck->set_name(strprintf("%x",&*iter));
 492                 duck->signal_edited().connect(
 493                         sigc::bind(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_polygon_duck_change),iter)
 494                 );
 495
 496                 get_work_area()->add_duck(duck);
 497
 498                 bezier->p2=bezier->c2=duck;
 499                 get_work_area()->add_bezier(bezier);
 500         }
 501         get_work_area()->queue_draw();
 502 }
 503
 504
 505 bool
 506 StatePolygon_Context::on_polygon_duck_change(const synfig::Point &point, std::list<synfig::Point>::iterator iter)
 507 {
 508         *iter=point;
 509         return true;
 510 }