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 #endif
  51
  52 /* === U S I N G =========================================================== */
  53
  54 using namespace std;
  55 using namespace etl;
  56 using namespace synfig;
  57 using namespace studio;
  58
  59 /* === M A C R O S ========================================================= */
  60
  61 /* === G L O B A L S ======================================================= */
  62
  63 StatePolygon studio::state_polygon;
  64
  65 /* === C L A S S E S & S T R U C T S ======================================= */
  66
  67 class studio::StatePolygon_Context : public sigc::trackable
  68 {
  69         etl::handle<CanvasView> canvas_view_;
  70         CanvasView::IsWorking is_working;
  71
  72         bool prev_table_status;
  73         bool prev_workarea_layer_status_;
  74
  75         Gtk::Menu menu;
  76
  77         Duckmatic::Push duckmatic_push;
  78
  79         std::list<synfig::Point> polygon_point_list;
  80         synfigapp::Settings& settings;
  81
  82
  83         bool on_polygon_duck_change(const synfig::Point &point, std::list<synfig::Point>::iterator iter);
  84
  85
  86         void popup_handle_menu(synfigapp::ValueDesc value_desc);
  87
  88
  89         void refresh_ducks();
  90
  91         Gtk::Table options_table;
  92         Gtk::Entry entry_id;
  93         Gtk::Button button_make;
  94
  95 public:
  96         synfig::String get_id()const { return entry_id.get_text(); }
  97         void set_id(const synfig::String& x) { return entry_id.set_text(x); }
  98
  99         Smach::event_result event_stop_handler(const Smach::event& x);
 100
 101         Smach::event_result event_refresh_handler(const Smach::event& x);
 102
 103         Smach::event_result event_mouse_click_handler(const Smach::event& x);
 104         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 105         void refresh_tool_options();
 106
 107         StatePolygon_Context(CanvasView* canvas_view);
 108
 109         ~StatePolygon_Context();
 110
 111         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 112         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 113         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 114         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 115
 116         //void on_user_click(synfig::Point point);
 117         void load_settings();
 118         void save_settings();
 119         void reset();
 120         void increment_id();
 121         bool egress_on_selection_change;
 122         Smach::event_result event_layer_selection_changed_handler(const Smach::event& /*x*/)
 123         {
 124                 if(egress_on_selection_change)
 125                         throw Smach::egress_exception();
 126                 return Smach::RESULT_OK;
 127         }
 128
 129         void run();
 130 };      // END of class StatePolygon_Context
 131
 132 /* === M E T H O D S ======================================================= */
 133
 134 StatePolygon::StatePolygon():
 135         Smach::state<StatePolygon_Context>("polygon")
 136 {
 137         insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StatePolygon_Context::event_layer_selection_changed_handler));
 138         insert(event_def(EVENT_STOP,&StatePolygon_Context::event_stop_handler));
 139         insert(event_def(EVENT_REFRESH,&StatePolygon_Context::event_refresh_handler));
 140         insert(event_def(EVENT_REFRESH_DUCKS,&StatePolygon_Context::event_refresh_handler));
 141         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StatePolygon_Context::event_mouse_click_handler));
 142         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StatePolygon_Context::event_refresh_tool_options));
 143 }
 144
 145 StatePolygon::~StatePolygon()
 146 {
 147 }
 148
 149 void
 150 StatePolygon_Context::load_settings()
 151 {
 152         String value;
 153
 154         if(settings.get_value("polygon.id",value))
 155                 set_id(value);
 156         else
 157                 set_id("Polygon");
 158 }
 159
 160 void
 161 StatePolygon_Context::save_settings()
 162 {
 163         settings.set_value("polygon.id",get_id().c_str());
 164 }
 165
 166 void
 167 StatePolygon_Context::reset()
 168 {
 169         polygon_point_list.clear();
 170         refresh_ducks();
 171 }
 172
 173 void
 174 StatePolygon_Context::increment_id()
 175 {
 176         String id(get_id());
 177         int number=1;
 178         int digits=0;
 179
 180         if(id.empty())
 181                 id="Polygon";
 182
 183         // If there is a number
 184         // already at the end of the
 185         // id, then remove it.
 186         if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
 187         {
 188                 // figure out how many digits it is
 189                 for(digits=0;(int)id.size()-1>=digits && id[id.size()-1-digits]<='9' && id[id.size()-1-digits]>='0';digits++)while(false);
 190
 191                 String str_number;
 192                 str_number=String(id,id.size()-digits,id.size());
 193                 id=String(id,0,id.size()-digits);
 194
 195                 number=atoi(str_number.c_str());
 196         }
 197         else
 198         {
 199                 number=1;
 200                 digits=3;
 201         }
 202
 203         number++;
 204
 205         // Add the number back onto the id
 206         {
 207                 const String format(strprintf("%%0%dd",digits));
 208                 id+=strprintf(format.c_str(),number);
 209         }
 210
 211         // Set the ID
 212         set_id(id);
 213 }
 214
 215 StatePolygon_Context::StatePolygon_Context(CanvasView* canvas_view):
 216         canvas_view_(canvas_view),
 217         is_working(*canvas_view),
 218         prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
 219         duckmatic_push(get_work_area()),
 220         settings(synfigapp::Main::get_selected_input_device()->settings()),
 221         entry_id(),
 222         button_make(_("Make"))
 223 {
 224         egress_on_selection_change=true;
 225         load_settings();
 226
 227         // Set up the tool options dialog
 228         //options_table.attach(*manage(new Gtk::Label(_("Polygon Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 229         options_table.attach(entry_id, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 230         //options_table.attach(button_make, 0, 2, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 231         button_make.signal_pressed().connect(sigc::mem_fun(*this,&StatePolygon_Context::run));
 232         options_table.show_all();
 233         refresh_tool_options();
 234         App::dialog_tool_options->present();
 235
 236
 237         // Turn off layer clicking
 238         get_work_area()->set_allow_layer_clicks(false);
 239
 240         // clear out the ducks
 241         get_work_area()->clear_ducks();
 242
 243         // Refresh the work area
 244         get_work_area()->queue_draw();
 245
 246         get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 247
 248         // Hide the tables if they are showing
 249         prev_table_status=get_canvas_view()->tables_are_visible();
 250         if(prev_table_status)get_canvas_view()->hide_tables();
 251
 252         // Disable the time bar
 253         get_canvas_view()->set_sensitive_timebar(false);
 254
 255         // Connect a signal
 256         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_user_click));
 257
 258         App::toolbox->refresh();
 259 }
 260
 261 void
 262 StatePolygon_Context::refresh_tool_options()
 263 {
 264         App::dialog_tool_options->clear();
 265         App::dialog_tool_options->set_widget(options_table);
 266
 267         App::dialog_tool_options->set_local_name(_("Polygon Tool"));
 268         App::dialog_tool_options->set_name("polygon");
 269
 270         App::dialog_tool_options->add_button(
 271                 Gtk::StockID("gtk-execute"),
 272                 _("Make Polygon")
 273         )->signal_clicked().connect(
 274                 sigc::mem_fun(
 275                         *this,
 276                         &StatePolygon_Context::run
 277                 )
 278         );
 279
 280         App::dialog_tool_options->add_button(
 281                 Gtk::StockID("gtk-clear"),
 282                 _("Clear current Polygon")
 283         )->signal_clicked().connect(
 284                 sigc::mem_fun(
 285                         *this,
 286                         &StatePolygon_Context::reset
 287                 )
 288         );
 289 }
 290
 291 Smach::event_result
 292 StatePolygon_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 293 {
 294         refresh_tool_options();
 295         return Smach::RESULT_ACCEPT;
 296 }
 297
 298 StatePolygon_Context::~StatePolygon_Context()
 299 {
 300         run();
 301
 302         save_settings();
 303         // Restore layer clicking
 304         get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
 305
 306         App::dialog_tool_options->clear();
 307
 308         get_canvas_view()->work_area->reset_cursor();
 309
 310         // Enable the time bar
 311         get_canvas_view()->set_sensitive_timebar(true);
 312
 313         // Bring back the tables if they were out before
 314         if(prev_table_status)get_canvas_view()->show_tables();
 315
 316         // Refresh the work area
 317         get_work_area()->queue_draw();
 318
 319         App::toolbox->refresh();
 320 }
 321
 322 Smach::event_result
 323 StatePolygon_Context::event_stop_handler(const Smach::event& /*x*/)
 324 {
 325         synfig::info("STATE RotoPolygon: Received Stop Event");
 326         //throw Smach::egress_exception();
 327         reset();
 328         return Smach::RESULT_ACCEPT;
 329
 330 }
 331
 332 Smach::event_result
 333 StatePolygon_Context::event_refresh_handler(const Smach::event& /*x*/)
 334 {
 335         synfig::info("STATE RotoPolygon: Received Refresh Event");
 336         refresh_ducks();
 337         return Smach::RESULT_ACCEPT;
 338 }
 339
 340 void
 341 StatePolygon_Context::run()
 342 {
 343         if(polygon_point_list.empty())
 344                 return;
 345
 346         if(polygon_point_list.size()<3)
 347         {
 348                 get_canvas_view()->get_ui_interface()->error("You need at least 3 points to create a polygon");
 349                 return;
 350         }
 351                 Layer::Handle layer;
 352                 Canvas::Handle canvas(get_canvas_view()->get_canvas());
 353                 int depth(0);
 354
 355                 // we are temporarily using the layer to hold something
 356                 layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
 357                 if(layer)
 358                 {
 359                         depth=layer->get_depth();
 360                         canvas=layer->get_canvas();
 361                 }
 362
 363                 {
 364                         synfigapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Polygon"));
 365                         synfigapp::PushMode push_mode(get_canvas_interface(),synfigapp::MODE_NORMAL);
 366
 367                         Layer::Handle layer(get_canvas_interface()->add_layer_to("polygon",canvas,depth));
 368                         layer->set_description(get_id());
 369                         get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 370
 371                         layer->disconnect_dynamic_param("vector_list");
 372                         if(!layer->set_param("vector_list",polygon_point_list))
 373                         {
 374                                 group.cancel();
 375                                 get_canvas_view()->get_ui_interface()->error("Unable to set layer parameter");
 376                                 return;
 377                         }
 378
 379                         {
 380                                 synfigapp::Action::Handle action(synfigapp::Action::create("value_desc_convert"));
 381                                 synfigapp::ValueDesc value_desc(layer,"vector_list");
 382                                 action->set_param("canvas",get_canvas());
 383                                 action->set_param("canvas_interface",get_canvas_interface());
 384                                 action->set_param("value_desc",value_desc);
 385                                 action->set_param("type","dynamic_list");
 386                                 if(!get_canvas_interface()->get_instance()->perform_action(action))
 387                                 {
 388                                         group.cancel();
 389                                         get_canvas_view()->get_ui_interface()->error("Unable to execute action \"value_desc_convert\"");
 390                                         return;
 391                                 }
 392                         }
 393                         egress_on_selection_change=false;
 394                         get_canvas_interface()->get_selection_manager()->clear_selected_layers();
 395                         get_canvas_interface()->get_selection_manager()->set_selected_layer(layer);
 396                         egress_on_selection_change=true;
 397                         //get_canvas_interface()->signal_dirty_preview()();
 398                 }
 399 /*
 400                 else
 401                 {
 402                         ValueNode::Handle value_node=(ValueNode_Const::create(polygon_point_list));
 403                         std::string valuenode_name="Poly";
 404                         while(studio::App::dialog_entry("New Polygon", "Please enter the new ID for this value_node",valuenode_name))
 405                                 if(get_canvas_interface()->add_value_node(value_node,valuenode_name))
 406                                         return true;
 407                 }
 408 */
 409         reset();
 410         increment_id();
 411 }
 412
 413 Smach::event_result
 414 StatePolygon_Context::event_mouse_click_handler(const Smach::event& x)
 415 {
 416         synfig::info("STATE ROTOPOLYGON: Received mouse button down Event");
 417         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 418         switch(event.button)
 419         {
 420         case BUTTON_LEFT:
 421                 polygon_point_list.push_back(get_work_area()->snap_point_to_grid(event.pos));
 422                 refresh_ducks();
 423                 return Smach::RESULT_ACCEPT;
 424
 425         case BUTTON_RIGHT: // Intercept the right-button click to short-circut the pop-up menu
 426                 return Smach::RESULT_ACCEPT;
 427
 428         default:
 429                 return Smach::RESULT_OK;
 430         }
 431 }
 432
 433
 434 void
 435 StatePolygon_Context::refresh_ducks()
 436 {
 437         get_work_area()->clear_ducks();
 438
 439         if(polygon_point_list.empty()) return;
 440
 441         std::list<synfig::Point>::iterator iter=polygon_point_list.begin();
 442
 443         etl::handle<WorkArea::Duck> duck;
 444         duck=new WorkArea::Duck(*iter);
 445         duck->set_editable(true);
 446         duck->signal_edited().connect(
 447                 sigc::bind(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_polygon_duck_change),iter)
 448         );
 449         duck->signal_user_click(0).connect(sigc::mem_fun(*this,&StatePolygon_Context::run));
 450
 451         get_work_area()->add_duck(duck);
 452
 453         for(++iter;iter!=polygon_point_list.end();++iter)
 454         {
 455                 etl::handle<WorkArea::Bezier> bezier(new WorkArea::Bezier());
 456                 bezier->p1=bezier->c1=duck;
 457
 458                 duck=new WorkArea::Duck(*iter);
 459                 duck->set_editable(true);
 460                 duck->set_name(strprintf("%x",&*iter));
 461                 duck->signal_edited().connect(
 462                         sigc::bind(sigc::mem_fun(*this,&studio::StatePolygon_Context::on_polygon_duck_change),iter)
 463                 );
 464
 465                 get_work_area()->add_duck(duck);
 466
 467                 bezier->p2=bezier->c2=duck;
 468                 get_work_area()->add_bezier(bezier);
 469         }
 470         get_work_area()->queue_draw();
 471 }
 472
 473
 474 bool
 475 StatePolygon_Context::on_polygon_duck_change(const synfig::Point &point, std::list<synfig::Point>::iterator iter)
 476 {
 477         *iter=point;
 478         return true;
 479 }