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;
 192                          (int)id.size()-1 >= digits && id[id.size()-1-digits] <= '9' && id[id.size()-1-digits] >= '0';
 193                          digits++)
 194                         ;
 195
 196                 String str_number;
 197                 str_number=String(id,id.size()-digits,id.size());
 198                 id=String(id,0,id.size()-digits);
 199
 200                 number=atoi(str_number.c_str());
 201         }
 202         else
 203         {
 204                 number=1;
 205                 digits=3;
 206         }
 207
 208         number++;
 209
 210         // Add the number back onto the id
 211         {
 212                 const String format(strprintf("%%0%dd",digits));
 213                 id+=strprintf(format.c_str(),number);
 214         }
 215
 216         // Set the ID
 217         set_id(id);
 218 }
 219
 220 StatePolygon_Context::StatePolygon_Context(CanvasView* canvas_view):
 221         canvas_view_(canvas_view),
 222         is_working(*canvas_view),
 223         prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
 224         duckmatic_push(get_work_area()),
 225         settings(synfigapp::Main::get_selected_input_device()->settings()),
 226         entry_id(),
 227         button_make(_("Make"))
 228 {
 229         egress_on_selection_change=true;
 230         load_settings();
 231
 232         // Set up the tool options dialog
 233         //options_table.attach(*manage(new Gtk::Label(_("Polygon Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 234         options_table.attach(entry_id, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 235         //options_table.attach(button_make, 0, 2, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 236         button_make.signal_pressed().connect(sigc::mem_fun(*this,&StatePolygon_Context::run));
 237         options_table.show_all();
 238         refresh_tool_options();
 239         App::dialog_tool_options->present();
 240
 241
 242         // Turn off layer clicking
 243         get_work_area()->set_allow_layer_clicks(false);
 244
 245         // clear out the ducks
 246         get_work_area()->clear_ducks();
 247
 248         // Refresh the work area
 249         get_work_area()->queue_draw();
 250
 251         get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 252
 253         // Hide the tables if they are showing
 254         prev_table_status=get_canvas_view()->tables_are_visible();
 255         if(prev_table_status)get_canvas_view()->hide_tables();
 256
 257         // Disable the time bar
 258         get_canvas_view()->set_sensitive_timebar(false);
 259
 260         // Connect a signal
 261         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_user_click));
 262
 263         App::toolbox->refresh();
 264 }
 265
 266 void
 267 StatePolygon_Context::refresh_tool_options()
 268 {
 269         App::dialog_tool_options->clear();
 270         App::dialog_tool_options->set_widget(options_table);
 271
 272         App::dialog_tool_options->set_local_name(_("Polygon Tool"));
 273         App::dialog_tool_options->set_name("polygon");
 274
 275         App::dialog_tool_options->add_button(
 276                 Gtk::StockID("gtk-execute"),
 277                 _("Make Polygon")
 278         )->signal_clicked().connect(
 279                 sigc::mem_fun(
 280                         *this,
 281                         &StatePolygon_Context::run
 282                 )
 283         );
 284
 285         App::dialog_tool_options->add_button(
 286                 Gtk::StockID("gtk-clear"),
 287                 _("Clear current Polygon")
 288         )->signal_clicked().connect(
 289                 sigc::mem_fun(
 290                         *this,
 291                         &StatePolygon_Context::reset
 292                 )
 293         );
 294 }
 295
 296 Smach::event_result
 297 StatePolygon_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 298 {
 299         refresh_tool_options();
 300         return Smach::RESULT_ACCEPT;
 301 }
 302
 303 StatePolygon_Context::~StatePolygon_Context()
 304 {
 305         run();
 306
 307         save_settings();
 308         // Restore layer clicking
 309         get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
 310
 311         App::dialog_tool_options->clear();
 312
 313         get_canvas_view()->work_area->reset_cursor();
 314
 315         // Enable the time bar
 316         get_canvas_view()->set_sensitive_timebar(true);
 317
 318         // Bring back the tables if they were out before
 319         if(prev_table_status)get_canvas_view()->show_tables();
 320
 321         // Refresh the work area
 322         get_work_area()->queue_draw();
 323
 324         App::toolbox->refresh();
 325 }
 326
 327 Smach::event_result
 328 StatePolygon_Context::event_stop_handler(const Smach::event& /*x*/)
 329 {
 330         synfig::info("STATE RotoPolygon: Received Stop Event");
 331         //throw Smach::egress_exception();
 332         reset();
 333         return Smach::RESULT_ACCEPT;
 334
 335 }
 336
 337 Smach::event_result
 338 StatePolygon_Context::event_refresh_handler(const Smach::event& /*x*/)
 339 {
 340         synfig::info("STATE RotoPolygon: Received Refresh Event");
 341         refresh_ducks();
 342         return Smach::RESULT_ACCEPT;
 343 }
 344
 345 void
 346 StatePolygon_Context::run()
 347 {
 348         if(polygon_point_list.empty())
 349                 return;
 350
 351         if(polygon_point_list.size()<3)
 352         {
 353                 get_canvas_view()->get_ui_interface()->error("You need at least 3 points to create a polygon");
 354                 return;
 355         }
 356                 Layer::Handle layer;
 357                 Canvas::Handle canvas(get_canvas_view()->get_canvas());
 358                 int depth(0);
 359
 360                 // we are temporarily using the layer to hold something
 361                 layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
 362                 if(layer)
 363                 {
 364                         depth=layer->get_depth();
 365                         canvas=layer->get_canvas();
 366                 }
 367
 368                 {
 369                         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Polygon"));
 370                         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 371
 372                         Layer::Handle layer(get_canvas_interface()->add_layer_to("polygon",canvas,depth));
 373                         layer->set_description(get_id());
 374                         get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 375
 376                         layer->disconnect_dynamic_param("vector_list");
 377                         if(!layer->set_param("vector_list",polygon_point_list))
 378                         {
 379                                 group.cancel();
 380                                 get_canvas_view()->get_ui_interface()->error("Unable to set layer parameter");
 381                                 return;
 382                         }
 383
 384                         {
 385                                 synfigapp::Action::Handle action(synfigapp::Action::create("value_desc_convert"));
 386                                 synfigapp::ValueDesc value_desc(layer,"vector_list");
 387                                 action->set_param("canvas",get_canvas());
 388                                 action->set_param("canvas_interface",get_canvas_interface());
 389                                 action->set_param("value_desc",value_desc);
 390                                 action->set_param("type","dynamic_list");
 391                                 action->set_param("time",get_canvas_interface()->get_time());
 392                                 if(!get_canvas_interface()->get_instance()->perform_action(action))
 393                                 {
 394                                         group.cancel();
 395                                         get_canvas_view()->get_ui_interface()->error("Unable to execute action \"value_desc_convert\"");
 396                                         return;
 397                                 }
 398                         }
 399                         egress_on_selection_change=false;
 400                         get_canvas_interface()->get_selection_manager()->clear_selected_layers();
 401                         get_canvas_interface()->get_selection_manager()->set_selected_layer(layer);
 402                         egress_on_selection_change=true;
 403                         //get_canvas_interface()->signal_dirty_preview()();
 404                 }
 405 /*
 406                 else
 407                 {
 408                         ValueNode::Handle value_node=(ValueNode_Const::create(polygon_point_list));
 409                         std::string valuenode_name="Poly";
 410                         while(studio::App::dialog_entry("New Polygon", "Please enter the new ID for this value_node",valuenode_name))
 411                                 if(get_canvas_interface()->add_value_node(value_node,valuenode_name))
 412                                         return true;
 413                 }
 414 */
 415         reset();
 416         increment_id();
 417 }
 418
 419 Smach::event_result
 420 StatePolygon_Context::event_mouse_click_handler(const Smach::event& x)
 421 {
 422         synfig::info("STATE ROTOPOLYGON: Received mouse button down Event");
 423         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 424         switch(event.button)
 425         {
 426         case BUTTON_LEFT:
 427                 polygon_point_list.push_back(get_work_area()->snap_point_to_grid(event.pos));
 428                 refresh_ducks();
 429                 return Smach::RESULT_ACCEPT;
 430
 431         case BUTTON_RIGHT: // Intercept the right-button click to short-circuit the pop-up menu
 432                 if (!getenv("SYNFIG_ENABLE_POPUP_MENU_IN_ALL_TOOLS"))
 433                         return Smach::RESULT_ACCEPT;
 434
 435         default:
 436                 return Smach::RESULT_OK;
 437         }
 438 }
 439
 440
 441 void
 442 StatePolygon_Context::refresh_ducks()
 443 {
 444         get_work_area()->clear_ducks();
 445
 446         if(polygon_point_list.empty()) return;
 447
 448         std::list<synfig::Point>::iterator iter=polygon_point_list.begin();
 449
 450         etl::handle<WorkArea::Duck> duck;
 451         duck=new WorkArea::Duck(*iter);
 452         duck->set_editable(true);
 453         duck->signal_edited().connect(
 454                 sigc::bind(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_polygon_duck_change),iter)
 455         );
 456         duck->signal_user_click(0).connect(sigc::mem_fun(*this,&StatePolygon_Context::run));
 457
 458         get_work_area()->add_duck(duck);
 459
 460         for(++iter;iter!=polygon_point_list.end();++iter)
 461         {
 462                 etl::handle<WorkArea::Bezier> bezier(new WorkArea::Bezier());
 463                 bezier->p1=bezier->c1=duck;
 464
 465                 duck=new WorkArea::Duck(*iter);
 466                 duck->set_editable(true);
 467                 duck->set_name(strprintf("%x",&*iter));
 468                 duck->signal_edited().connect(
 469                         sigc::bind(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_polygon_duck_change),iter)
 470                 );
 471
 472                 get_work_area()->add_duck(duck);
 473
 474                 bezier->p2=bezier->c2=duck;
 475                 get_work_area()->add_bezier(bezier);
 476         }
 477         get_work_area()->queue_draw();
 478 }
 479
 480
 481 bool
 482 StatePolygon_Context::on_polygon_duck_change(const synfig::Point &point, std::list<synfig::Point>::iterator iter)
 483 {
 484         *iter=point;
 485         return true;
 486 }