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 **
  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_polygon.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 <synfigapp/main.h>
  49
  50 #include "general.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
  63 /* === G L O B A L S ======================================================= */
  64
  65 StatePolygon studio::state_polygon;
  66
  67 /* === C L A S S E S & S T R U C T S ======================================= */
  68
  69 class studio::StatePolygon_Context : public sigc::trackable
  70 {
  71         etl::handle<CanvasView> canvas_view_;
  72         CanvasView::IsWorking is_working;
  73
  74         bool prev_table_status;
  75         bool prev_workarea_layer_status_;
  76
  77         Gtk::Menu menu;
  78
  79         Duckmatic::Push duckmatic_push;
  80
  81         std::list<synfig::Point> polygon_point_list;
  82         synfigapp::Settings& settings;
  83
  84
  85         bool on_polygon_duck_change(const synfig::Point &point, std::list<synfig::Point>::iterator iter);
  86
  87
  88         void popup_handle_menu(synfigapp::ValueDesc value_desc);
  89
  90
  91         void refresh_ducks();
  92
  93         Gtk::Table options_table;
  94         Gtk::Entry entry_id;
  95         Gtk::Button button_make;
  96
  97 public:
  98         synfig::String get_id()const { return entry_id.get_text(); }
  99         void set_id(const synfig::String& x) { return entry_id.set_text(x); }
 100
 101         Smach::event_result event_stop_handler(const Smach::event& x);
 102
 103         Smach::event_result event_refresh_handler(const Smach::event& x);
 104
 105         Smach::event_result event_mouse_click_handler(const Smach::event& x);
 106         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 107         void refresh_tool_options();
 108
 109         StatePolygon_Context(CanvasView* canvas_view);
 110
 111         ~StatePolygon_Context();
 112
 113         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 114         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 115         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 116         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 117
 118         //void on_user_click(synfig::Point point);
 119         void load_settings();
 120         void save_settings();
 121         void reset();
 122         void increment_id();
 123         bool egress_on_selection_change;
 124         Smach::event_result event_layer_selection_changed_handler(const Smach::event& /*x*/)
 125         {
 126                 if(egress_on_selection_change)
 127                         throw Smach::egress_exception();
 128                 return Smach::RESULT_OK;
 129         }
 130
 131         void run();
 132 };      // END of class StatePolygon_Context
 133
 134 /* === M E T H O D S ======================================================= */
 135
 136 StatePolygon::StatePolygon():
 137         Smach::state<StatePolygon_Context>("polygon")
 138 {
 139         insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StatePolygon_Context::event_layer_selection_changed_handler));
 140         insert(event_def(EVENT_STOP,&StatePolygon_Context::event_stop_handler));
 141         insert(event_def(EVENT_REFRESH,&StatePolygon_Context::event_refresh_handler));
 142         insert(event_def(EVENT_REFRESH_DUCKS,&StatePolygon_Context::event_refresh_handler));
 143         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StatePolygon_Context::event_mouse_click_handler));
 144         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StatePolygon_Context::event_refresh_tool_options));
 145 }
 146
 147 StatePolygon::~StatePolygon()
 148 {
 149 }
 150
 151 void
 152 StatePolygon_Context::load_settings()
 153 {
 154         String value;
 155
 156         if(settings.get_value("polygon.id",value))
 157                 set_id(value);
 158         else
 159                 set_id("Polygon");
 160 }
 161
 162 void
 163 StatePolygon_Context::save_settings()
 164 {
 165         settings.set_value("polygon.id",get_id().c_str());
 166 }
 167
 168 void
 169 StatePolygon_Context::reset()
 170 {
 171         polygon_point_list.clear();
 172         refresh_ducks();
 173 }
 174
 175 void
 176 StatePolygon_Context::increment_id()
 177 {
 178         String id(get_id());
 179         int number=1;
 180         int digits=0;
 181
 182         if(id.empty())
 183                 id="Polygon";
 184
 185         // If there is a number
 186         // already at the end of the
 187         // id, then remove it.
 188         if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
 189         {
 190                 // figure out how many digits it is
 191                 for(digits=0;(int)id.size()-1>=digits && id[id.size()-1-digits]<='9' && id[id.size()-1-digits]>='0';digits++)while(false);
 192
 193                 String str_number;
 194                 str_number=String(id,id.size()-digits,id.size());
 195                 id=String(id,0,id.size()-digits);
 196
 197                 number=atoi(str_number.c_str());
 198         }
 199         else
 200         {
 201                 number=1;
 202                 digits=3;
 203         }
 204
 205         number++;
 206
 207         // Add the number back onto the id
 208         {
 209                 const String format(strprintf("%%0%dd",digits));
 210                 id+=strprintf(format.c_str(),number);
 211         }
 212
 213         // Set the ID
 214         set_id(id);
 215 }
 216
 217 StatePolygon_Context::StatePolygon_Context(CanvasView* canvas_view):
 218         canvas_view_(canvas_view),
 219         is_working(*canvas_view),
 220         prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
 221         duckmatic_push(get_work_area()),
 222         settings(synfigapp::Main::get_selected_input_device()->settings()),
 223         entry_id(),
 224         button_make(_("Make"))
 225 {
 226         egress_on_selection_change=true;
 227         load_settings();
 228
 229         // Set up the tool options dialog
 230         //options_table.attach(*manage(new Gtk::Label(_("Polygon Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 231         options_table.attach(entry_id, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 232         //options_table.attach(button_make, 0, 2, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 233         button_make.signal_pressed().connect(sigc::mem_fun(*this,&StatePolygon_Context::run));
 234         options_table.show_all();
 235         refresh_tool_options();
 236         App::dialog_tool_options->present();
 237
 238
 239         // Turn off layer clicking
 240         get_work_area()->set_allow_layer_clicks(false);
 241
 242         // clear out the ducks
 243         get_work_area()->clear_ducks();
 244
 245         // Refresh the work area
 246         get_work_area()->queue_draw();
 247
 248         get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 249
 250         // Hide the tables if they are showing
 251         prev_table_status=get_canvas_view()->tables_are_visible();
 252         if(prev_table_status)get_canvas_view()->hide_tables();
 253
 254         // Disable the time bar
 255         get_canvas_view()->set_sensitive_timebar(false);
 256
 257         // Connect a signal
 258         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_user_click));
 259
 260         App::toolbox->refresh();
 261 }
 262
 263 void
 264 StatePolygon_Context::refresh_tool_options()
 265 {
 266         App::dialog_tool_options->clear();
 267         App::dialog_tool_options->set_widget(options_table);
 268
 269         App::dialog_tool_options->set_local_name(_("Polygon Tool"));
 270         App::dialog_tool_options->set_name("polygon");
 271
 272         App::dialog_tool_options->add_button(
 273                 Gtk::StockID("gtk-execute"),
 274                 _("Make Polygon")
 275         )->signal_clicked().connect(
 276                 sigc::mem_fun(
 277                         *this,
 278                         &StatePolygon_Context::run
 279                 )
 280         );
 281
 282         App::dialog_tool_options->add_button(
 283                 Gtk::StockID("gtk-clear"),
 284                 _("Clear current Polygon")
 285         )->signal_clicked().connect(
 286                 sigc::mem_fun(
 287                         *this,
 288                         &StatePolygon_Context::reset
 289                 )
 290         );
 291 }
 292
 293 Smach::event_result
 294 StatePolygon_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 295 {
 296         refresh_tool_options();
 297         return Smach::RESULT_ACCEPT;
 298 }
 299
 300 StatePolygon_Context::~StatePolygon_Context()
 301 {
 302         run();
 303
 304         save_settings();
 305         // Restore layer clicking
 306         get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
 307
 308         App::dialog_tool_options->clear();
 309
 310         get_canvas_view()->work_area->reset_cursor();
 311
 312         // Enable the time bar
 313         get_canvas_view()->set_sensitive_timebar(true);
 314
 315         // Bring back the tables if they were out before
 316         if(prev_table_status)get_canvas_view()->show_tables();
 317
 318         // Refresh the work area
 319         get_work_area()->queue_draw();
 320
 321         App::toolbox->refresh();
 322 }
 323
 324 Smach::event_result
 325 StatePolygon_Context::event_stop_handler(const Smach::event& /*x*/)
 326 {
 327         synfig::info("STATE RotoPolygon: Received Stop Event");
 328         //throw Smach::egress_exception();
 329         reset();
 330         return Smach::RESULT_ACCEPT;
 331
 332 }
 333
 334 Smach::event_result
 335 StatePolygon_Context::event_refresh_handler(const Smach::event& /*x*/)
 336 {
 337         synfig::info("STATE RotoPolygon: Received Refresh Event");
 338         refresh_ducks();
 339         return Smach::RESULT_ACCEPT;
 340 }
 341
 342 void
 343 StatePolygon_Context::run()
 344 {
 345         if(polygon_point_list.empty())
 346                 return;
 347
 348         if(polygon_point_list.size()<3)
 349         {
 350                 get_canvas_view()->get_ui_interface()->error("You need at least 3 points to create a polygon");
 351                 return;
 352         }
 353                 Layer::Handle layer;
 354                 Canvas::Handle canvas(get_canvas_view()->get_canvas());
 355                 int depth(0);
 356
 357                 // we are temporarily using the layer to hold something
 358                 layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
 359                 if(layer)
 360                 {
 361                         depth=layer->get_depth();
 362                         canvas=layer->get_canvas();
 363                 }
 364
 365                 {
 366                         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Polygon"));
 367                         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 368
 369                         Layer::Handle layer(get_canvas_interface()->add_layer_to("polygon",canvas,depth));
 370                         layer->set_description(get_id());
 371                         get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 372
 373                         layer->disconnect_dynamic_param("vector_list");
 374                         if(!layer->set_param("vector_list",polygon_point_list))
 375                         {
 376                                 group.cancel();
 377                                 get_canvas_view()->get_ui_interface()->error("Unable to set layer parameter");
 378                                 return;
 379                         }
 380
 381                         {
 382                                 synfigapp::Action::Handle action(synfigapp::Action::create("value_desc_convert"));
 383                                 synfigapp::ValueDesc value_desc(layer,"vector_list");
 384                                 action->set_param("canvas",get_canvas());
 385                                 action->set_param("canvas_interface",get_canvas_interface());
 386                                 action->set_param("value_desc",value_desc);
 387                                 action->set_param("type","dynamic_list");
 388                                 action->set_param("time",get_canvas_interface()->get_time());
 389                                 if(!get_canvas_interface()->get_instance()->perform_action(action))
 390                                 {
 391                                         group.cancel();
 392                                         get_canvas_view()->get_ui_interface()->error("Unable to execute action \"value_desc_convert\"");
 393                                         return;
 394                                 }
 395                         }
 396                         egress_on_selection_change=false;
 397                         get_canvas_interface()->get_selection_manager()->clear_selected_layers();
 398                         get_canvas_interface()->get_selection_manager()->set_selected_layer(layer);
 399                         egress_on_selection_change=true;
 400                         //get_canvas_interface()->signal_dirty_preview()();
 401                 }
 402 /*
 403                 else
 404                 {
 405                         ValueNode::Handle value_node=(ValueNode_Const::create(polygon_point_list));
 406                         std::string valuenode_name="Poly";
 407                         while(studio::App::dialog_entry("New Polygon", "Please enter the new ID for this value_node",valuenode_name))
 408                                 if(get_canvas_interface()->add_value_node(value_node,valuenode_name))
 409                                         return true;
 410                 }
 411 */
 412         reset();
 413         increment_id();
 414 }
 415
 416 Smach::event_result
 417 StatePolygon_Context::event_mouse_click_handler(const Smach::event& x)
 418 {
 419         synfig::info("STATE ROTOPOLYGON: Received mouse button down Event");
 420         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 421         switch(event.button)
 422         {
 423         case BUTTON_LEFT:
 424                 polygon_point_list.push_back(get_work_area()->snap_point_to_grid(event.pos));
 425                 refresh_ducks();
 426                 return Smach::RESULT_ACCEPT;
 427
 428         case BUTTON_RIGHT: // Intercept the right-button click to short-circuit the pop-up menu
 429                 if (!getenv("SYNFIG_ENABLE_POPUP_MENU_IN_ALL_TOOLS"))
 430                         return Smach::RESULT_ACCEPT;
 431
 432         default:
 433                 return Smach::RESULT_OK;
 434         }
 435 }
 436
 437
 438 void
 439 StatePolygon_Context::refresh_ducks()
 440 {
 441         get_work_area()->clear_ducks();
 442
 443         if(polygon_point_list.empty()) return;
 444
 445         std::list<synfig::Point>::iterator iter=polygon_point_list.begin();
 446
 447         etl::handle<WorkArea::Duck> duck;
 448         duck=new WorkArea::Duck(*iter);
 449         duck->set_editable(true);
 450         duck->signal_edited().connect(
 451                 sigc::bind(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_polygon_duck_change),iter)
 452         );
 453         duck->signal_user_click(0).connect(sigc::mem_fun(*this,&StatePolygon_Context::run));
 454
 455         get_work_area()->add_duck(duck);
 456
 457         for(++iter;iter!=polygon_point_list.end();++iter)
 458         {
 459                 etl::handle<WorkArea::Bezier> bezier(new WorkArea::Bezier());
 460                 bezier->p1=bezier->c1=duck;
 461
 462                 duck=new WorkArea::Duck(*iter);
 463                 duck->set_editable(true);
 464                 duck->set_name(strprintf("%x",&*iter));
 465                 duck->signal_edited().connect(
 466                         sigc::bind(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_polygon_duck_change),iter)
 467                 );
 468
 469                 get_work_area()->add_duck(duck);
 470
 471                 bezier->p2=bezier->c2=duck;
 472                 get_work_area()->add_bezier(bezier);
 473         }
 474         get_work_area()->queue_draw();
 475 }
 476
 477
 478 bool
 479 StatePolygon_Context::on_polygon_duck_change(const synfig::Point &point, std::list<synfig::Point>::iterator iter)
 480 {
 481         *iter=point;
 482         return true;
 483 }