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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file state_sketch.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
  37 #include "state_sketch.h"
  38 #include "state_stroke.h"
  39 #include "canvasview.h"
  40 #include "workarea.h"
  41 #include "app.h"
  42 #include <synfig/valuenode_bline.h>
  43 #include <ETL/hermite>
  44 #include <ETL/calculus>
  45 #include <utility>
  46 #include "event_mouse.h"
  47 #include "event_layerclick.h"
  48 #include "toolbox.h"
  49
  50 #include <synfigapp/blineconvert.h>
  51 #include <synfigapp/main.h>
  52
  53 #include <ETL/gaussian>
  54
  55 #include "dialog_tooloptions.h"
  56
  57 #include <gtkmm/table.h>
  58 #include <gtkmm/label.h>
  59 #include <gtkmm/button.h>
  60 #include <gtkmm/checkbutton.h>
  61 #include <gtkmm/actiongroup.h>
  62
  63 #endif
  64
  65 /* === U S I N G =========================================================== */
  66
  67 using namespace std;
  68 using namespace etl;
  69 using namespace synfig;
  70 using namespace studio;
  71
  72 /* === M A C R O S ========================================================= */
  73
  74 /* === G L O B A L S ======================================================= */
  75
  76 StateSketch studio::state_sketch;
  77
  78 /* === C L A S S E S & S T R U C T S ======================================= */
  79
  80 class studio::StateSketch_Context : public sigc::trackable
  81 {
  82         Glib::RefPtr<Gtk::ActionGroup> action_group;
  83
  84         etl::handle<CanvasView> canvas_view_;
  85         CanvasView::IsWorking is_working;
  86
  87         bool prev_table_status;
  88         bool prev_workarea_layer_status_;
  89
  90         Gtk::Table options_table;
  91         Gtk::Button button_clear_sketch;
  92         Gtk::Button button_undo_stroke;
  93         Gtk::Button button_save_sketch;
  94         Gtk::Button button_load_sketch;
  95         Gtk::CheckButton checkbutton_show_sketch;
  96
  97         void clear_sketch();
  98         void save_sketch();
  99         void load_sketch();
 100         void undo_stroke();
 101         void toggle_show_sketch();
 102
 103 public:
 104
 105         Smach::event_result event_stop_handler(const Smach::event& x);
 106
 107         Smach::event_result event_refresh_handler(const Smach::event& x);
 108
 109         Smach::event_result event_mouse_down_handler(const Smach::event& x);
 110
 111         Smach::event_result event_stroke(const Smach::event& x);
 112
 113         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 114         Smach::event_result event_yield_tool_options(const Smach::event& x);
 115
 116         void refresh_tool_options();
 117         void yield_tool_options();
 118
 119         StateSketch_Context(CanvasView* canvas_view);
 120
 121         ~StateSketch_Context();
 122
 123         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 124         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 125         synfig::Time get_time()const { return get_canvas_interface()->get_time(); }
 126         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 127         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 128
 129 };      // END of class StateSketch_Context
 130
 131
 132 /* === M E T H O D S ======================================================= */
 133
 134 StateSketch::StateSketch():
 135         Smach::state<StateSketch_Context>("sketch")
 136 {
 137         insert(event_def(EVENT_STOP,&StateSketch_Context::event_stop_handler));
 138         //insert(event_def(EVENT_REFRESH,&StateSketch_Context::event_refresh_handler));
 139         insert(event_def(EVENT_REFRESH_DUCKS,&StateSketch_Context::event_refresh_handler));
 140         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateSketch_Context::event_mouse_down_handler));
 141         insert(event_def(EVENT_WORKAREA_STROKE,&StateSketch_Context::event_stroke));
 142         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateSketch_Context::event_refresh_tool_options));
 143         insert(event_def(EVENT_YIELD_TOOL_OPTIONS,&StateSketch_Context::event_yield_tool_options));
 144 }
 145
 146 StateSketch::~StateSketch()
 147 {
 148 }
 149
 150 void
 151 StateSketch_Context::save_sketch()
 152 {
 153         synfig::String filename(basename(get_canvas()->get_file_name())+".sketch");
 154
 155         while(App::dialog_save_file(_("Save Sketch"), filename))
 156         {
 157                 // If the filename still has wildcards, then we should
 158                 // continue looking for the file we want
 159                 if(find(filename.begin(),filename.end(),'*')!=filename.end())
 160                         continue;
 161
 162                 if(get_work_area()->save_sketch(filename))
 163                         break;
 164
 165                 get_canvas_view()->get_ui_interface()->error(_("Unable to save sketch"));
 166         }
 167 }
 168
 169 void
 170 StateSketch_Context::load_sketch()
 171 {
 172         synfig::String filename(basename(get_canvas()->get_file_name())+".sketch");
 173
 174         while(App::dialog_open_file(_("Load Sketch"), filename))
 175         {
 176                 // If the filename still has wildcards, then we should
 177                 // continue looking for the file we want
 178                 if(find(filename.begin(),filename.end(),'*')!=filename.end())
 179                         continue;
 180
 181                 if(get_work_area()->load_sketch(filename))
 182                         break;
 183
 184                 get_canvas_view()->get_ui_interface()->error(_("Unable to load sketch"));
 185         }
 186         get_work_area()->queue_draw();
 187 }
 188
 189 void
 190 StateSketch_Context::clear_sketch()
 191 {
 192         get_work_area()->clear_persistant_strokes();
 193
 194         // if the sketch is currently shown, make sure it is updated
 195         //! \todo is there a better way than this of getting Duckmatic to update its stroke_list_?
 196         if (checkbutton_show_sketch.get_active())
 197         {
 198                 get_work_area()->set_show_persistant_strokes(false);
 199                 get_work_area()->set_show_persistant_strokes(true);
 200                 get_canvas_view()->get_smach().process_event(EVENT_REFRESH);
 201         }
 202 }
 203
 204 void
 205 StateSketch_Context::undo_stroke()
 206 {
 207         if(!get_work_area()->persistant_stroke_list().empty())
 208         {
 209                 get_work_area()->persistant_stroke_list().pop_back();
 210
 211                 // if the sketch is currently shown, make sure it is updated
 212                 //! \todo is there a better way than this of getting Duckmatic to update its stroke_list_?
 213                 if (checkbutton_show_sketch.get_active())
 214                 {
 215                         get_work_area()->set_show_persistant_strokes(false);
 216                         get_work_area()->set_show_persistant_strokes(true);
 217                         get_canvas_view()->get_smach().process_event(EVENT_REFRESH);
 218                 }
 219         }
 220 }
 221
 222 void
 223 StateSketch_Context::toggle_show_sketch()
 224 {
 225         get_work_area()->set_show_persistant_strokes(checkbutton_show_sketch.get_active());
 226         get_work_area()->queue_draw();
 227 }
 228
 229 StateSketch_Context::StateSketch_Context(CanvasView* canvas_view):
 230         action_group(Gtk::ActionGroup::create()),
 231         canvas_view_(canvas_view),
 232         is_working(*canvas_view),
 233         prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks()),
 234         button_clear_sketch(_("Clear Sketch")),
 235         button_undo_stroke(_("Undo Stroke")),
 236         button_save_sketch(_("Save Sketch")),
 237         button_load_sketch(_("Load Sketch")),
 238         checkbutton_show_sketch(_("Show Sketch"))
 239 {
 240     Glib::ustring ui_info =
 241         "<ui>"
 242         "       <toolbar action='toolbar-sketch'>"
 243         "       <toolitem action='sketch-undo' />"
 244         "       <toolitem action='sketch-clear' />"
 245         "       <toolitem action='sketch-save-as' />"
 246         "       <toolitem action='sketch-open' />"
 247         "       </toolbar>"
 248         "</ui>";
 249
 250         action_group->add(Gtk::Action::create(
 251                 "sketch-undo",
 252                 Gtk::StockID("gtk-undo"),
 253                 _("Undo Last Stroke"),
 254                 _("Undo Last Stroke")
 255         ),
 256                 sigc::mem_fun(
 257                         *this,
 258                         &studio::StateSketch_Context::undo_stroke
 259                 )
 260         );
 261
 262         action_group->add(Gtk::Action::create(
 263                 "sketch-clear",
 264                 Gtk::StockID("gtk-clear"),
 265                 _("Clear Sketch"),
 266                 _("Clear Sketch")
 267         ),
 268                 sigc::mem_fun(
 269                         *this,
 270                         &studio::StateSketch_Context::clear_sketch
 271                 )
 272         );
 273
 274         action_group->add(Gtk::Action::create(
 275                 "sketch-save-as",
 276                 Gtk::StockID("gtk-save-as"),
 277                 _("Save Sketch As..."),
 278                 _("Save Sketch As...")
 279         ),
 280                 sigc::mem_fun(
 281                         *this,
 282                         &studio::StateSketch_Context::save_sketch
 283                 )
 284         );
 285
 286         action_group->add(Gtk::Action::create(
 287                 "sketch-save-as",
 288                 Gtk::StockID("gtk-save-as"),
 289                 _("Save Sketch As..."),
 290                 _("Save Sketch As...")
 291         ),
 292                 sigc::mem_fun(
 293                         *this,
 294                         &studio::StateSketch_Context::save_sketch
 295                 )
 296         );
 297
 298         action_group->add(Gtk::Action::create(
 299                 "sketch-open",
 300                 Gtk::StockID("gtk-open"),
 301                 _("Open a Sketch"),
 302                 _("Open a Sketch")
 303         ),
 304                 sigc::mem_fun(
 305                         *this,
 306                         &studio::StateSketch_Context::load_sketch
 307                 )
 308         );
 309
 310         action_group->add( Gtk::Action::create("toolbar-sketch", "Sketch Toolbar") );
 311
 312
 313         App::ui_manager()->add_ui_from_string(ui_info);
 314
 315
 316         checkbutton_show_sketch.set_active(get_work_area()->get_show_persistant_strokes());
 317
 318         button_clear_sketch.signal_clicked().connect(sigc::mem_fun(*this,&studio::StateSketch_Context::clear_sketch));
 319         button_undo_stroke.signal_clicked().connect(sigc::mem_fun(*this,&studio::StateSketch_Context::undo_stroke));
 320         button_save_sketch.signal_clicked().connect(sigc::mem_fun(*this,&studio::StateSketch_Context::save_sketch));
 321         button_load_sketch.signal_clicked().connect(sigc::mem_fun(*this,&studio::StateSketch_Context::load_sketch));
 322         checkbutton_show_sketch.signal_clicked().connect(sigc::mem_fun(*this,&studio::StateSketch_Context::toggle_show_sketch));
 323         //options_table.attach(*manage(new Gtk::Label(_("Sketch Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 324         options_table.attach(checkbutton_show_sketch, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 325         //options_table.attach(button_undo_stroke, 0, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 326         //options_table.attach(button_clear_sketch, 0, 2, 3, 4, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 327         //options_table.attach(button_save_sketch, 0, 1, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 328         //options_table.attach(button_load_sketch, 1, 2, 4, 5, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 329
 330
 331         options_table.show_all();
 332         refresh_tool_options();
 333         App::dialog_tool_options->present();
 334
 335         // Turn off layer clicking
 336         get_work_area()->set_allow_layer_clicks(false);
 337
 338         get_canvas_view()->work_area->set_cursor(Gdk::PENCIL);
 339
 340         // Turn off duck clicking
 341         get_work_area()->set_allow_duck_clicks(false);
 342
 343         // clear out the ducks
 344         //get_work_area()->clear_ducks();
 345
 346         // Refresh the work area
 347         //get_work_area()->queue_draw();
 348
 349         // Hide the tables if they are showing
 350         prev_table_status=get_canvas_view()->tables_are_visible();
 351         //if(prev_table_status)get_canvas_view()->hide_tables();
 352
 353         // Disable the time bar
 354         //get_canvas_view()->set_sensitive_timebar(false);
 355
 356         // Connect a signal
 357         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StateSketch_Context::on_user_click));
 358
 359         App::toolbox->refresh();
 360 }
 361
 362 StateSketch_Context::~StateSketch_Context()
 363 {
 364         get_canvas_view()->work_area->reset_cursor();
 365
 366         App::dialog_tool_options->clear();
 367
 368         // Restore layer clicking
 369         get_work_area()->set_allow_layer_clicks(prev_workarea_layer_status_);
 370
 371         // Restore duck clicking
 372         get_work_area()->set_allow_duck_clicks(true);
 373
 374         // Enable the time bar
 375         //get_canvas_view()->set_sensitive_timebar(true);
 376
 377         // Bring back the tables if they were out before
 378         if(prev_table_status)get_canvas_view()->show_tables();
 379
 380         // Refresh the work area
 381         //get_work_area()->queue_draw();
 382
 383         App::toolbox->refresh();
 384 }
 385
 386 void
 387 StateSketch_Context::yield_tool_options()
 388 {
 389         App::dialog_tool_options->clear();
 390         App::ui_manager()->remove_action_group(action_group);
 391 }
 392
 393 void
 394 StateSketch_Context::refresh_tool_options()
 395 {
 396         App::dialog_tool_options->clear();
 397         App::dialog_tool_options->set_widget(options_table);
 398         App::dialog_tool_options->set_local_name(_("Sketch Tool"));
 399         App::dialog_tool_options->set_name("sketch");
 400
 401         App::ui_manager()->insert_action_group(action_group);
 402         App::dialog_tool_options->set_toolbar(*dynamic_cast<Gtk::Toolbar*>(App::ui_manager()->get_widget("/toolbar-sketch")));
 403
 404         /*
 405         App::dialog_tool_options->add_button(
 406                 Gtk::StockID("gtk-undo"),
 407                 _("Undo Last Stroke")
 408         )->signal_clicked().connect(
 409                 sigc::mem_fun(
 410                         *this,
 411                         &studio::StateSketch_Context::undo_stroke
 412                 )
 413         );
 414         App::dialog_tool_options->add_button(
 415                 Gtk::StockID("gtk-clear"),
 416                 _("Clear Sketch")
 417         )->signal_clicked().connect(
 418                 sigc::mem_fun(
 419                         *this,
 420                         &studio::StateSketch_Context::clear_sketch
 421                 )
 422         );
 423         App::dialog_tool_options->add_button(
 424                 Gtk::StockID("gtk-save"),
 425                 _("Save Sketch to a File")
 426         )->signal_clicked().connect(
 427                 sigc::mem_fun(
 428                         *this,
 429                         &studio::StateSketch_Context::save_sketch
 430                 )
 431         );
 432
 433         App::dialog_tool_options->add_button(
 434                 Gtk::StockID("gtk-open"),
 435                 _("Open a Sketch")
 436         )->signal_clicked().connect(
 437                 sigc::mem_fun(
 438                         *this,
 439                         &studio::StateSketch_Context::load_sketch
 440                 )
 441         );
 442         */
 443         //button_clear_sketch.signal_clicked().connect(sigc::mem_fun(*this,&studio::StateSketch_Context::clear_sketch));
 444         //button_undo_stroke.signal_clicked().connect(sigc::mem_fun(*this,&studio::StateSketch_Context::undo_stroke));
 445         //button_save_sketch.signal_clicked().connect(sigc::mem_fun(*this,&studio::StateSketch_Context::save_sketch));
 446         //button_load_sketch.signal_clicked().connect(sigc::mem_fun(*this,&studio::StateSketch_Context::load_sketch));
 447         //checkbutton_show_sketch.signal_clicked().connect(sigc::mem_fun(*this,&studio::StateSketch_Context::toggle_show_sketch));
 448 }
 449
 450 Smach::event_result
 451 StateSketch_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 452 {
 453         refresh_tool_options();
 454         return Smach::RESULT_ACCEPT;
 455 }
 456
 457 Smach::event_result
 458 StateSketch_Context::event_yield_tool_options(const Smach::event& /*x*/)
 459 {
 460         yield_tool_options();
 461         return Smach::RESULT_ACCEPT;
 462 }
 463
 464 Smach::event_result
 465 StateSketch_Context::event_stop_handler(const Smach::event& /*x*/)
 466 {
 467         throw Smach::egress_exception();
 468 }
 469
 470 Smach::event_result
 471 StateSketch_Context::event_refresh_handler(const Smach::event& /*x*/)
 472 {
 473         return Smach::RESULT_ACCEPT;
 474 }
 475
 476 Smach::event_result
 477 StateSketch_Context::event_mouse_down_handler(const Smach::event& x)
 478 {
 479         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 480         switch(event.button)
 481         {
 482         case BUTTON_LEFT:
 483                 {
 484                         // Enter the stroke state to get the stroke
 485                         get_canvas_view()->get_smach().push_state(&state_stroke);
 486                         return Smach::RESULT_ACCEPT;
 487                 }
 488
 489         case BUTTON_RIGHT: // Intercept the right-button click to short-circut the pop-up menu
 490                 return Smach::RESULT_ACCEPT;
 491
 492         default:
 493                 return Smach::RESULT_OK;
 494         }
 495 }
 496
 497 Smach::event_result
 498 StateSketch_Context::event_stroke(const Smach::event& x)
 499 {
 500         const EventStroke& event(*reinterpret_cast<const EventStroke*>(&x));
 501
 502         assert(event.stroke_data);
 503
 504         get_work_area()->add_persistant_stroke(event.stroke_data,synfigapp::Main::get_foreground_color());
 505
 506         return Smach::RESULT_ACCEPT;
 507 }