synfig-studio/tags/stable/src/gtkmm/canvasview.h

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file canvasview.h
   3 **      \brief Template Header
   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 /* === S T A R T =========================================================== */
  25
  26 #ifndef __SYNFIG_STUDIO_GTKMM_CANVASVIEW_H
  27 #define __SYNFIG_STUDIO_GTKMM_CANVASVIEW_H
  28
  29 /* === H E A D E R S ======================================================= */
  30
  31 #include <gtkmm/window.h>
  32 #include <gtkmm/image.h>
  33 #include <gtkmm/tooltips.h>
  34 #include <gtkmm/table.h>
  35 #include <gtkmm/statusbar.h>
  36 #include <gtkmm/progressbar.h>
  37 #include <gtkmm/button.h>
  38 #include <gtkmm/menu.h>
  39 #include <gtkmm/treeview.h>
  40 #include <gtkmm/treestore.h>
  41 #include <gtkmm/scrolledwindow.h>
  42 #include <gtkmm/notebook.h>
  43 #include <gdkmm/device.h>
  44
  45 #include <synfigapp/canvasinterface.h>
  46 #include <synfigapp/selectionmanager.h>
  47
  48 #include <synfig/canvas.h>
  49 #include <synfig/string.h>
  50 #include <synfig/time.h>
  51
  52 #include "instance.h"
  53 #include "canvasproperties.h"
  54 #include "canvasoptions.h"
  55 #include "render.h"
  56 #include "cellrenderer_timetrack.h"
  57 #include "app.h"
  58
  59 #include "layertreestore.h"
  60 #include "layertree.h"
  61 #include "childrentreestore.h"
  62 #include "childrentree.h"
  63 #include "keyframetreestore.h"
  64 #include "keyframetree.h"
  65
  66 #include "dialog_waypoint.h"
  67 #include "dialog_keyframe.h"
  68
  69 #include "duckmatic.h"
  70 #include <gtkmm/scale.h>
  71
  72 #include <gtkmm/uimanager.h>
  73
  74 #include "smach.h"
  75
  76 #include <memory>
  77 #include <set>
  78 #include <map>
  79 #include <gtkmm/toggleaction.h>
  80 #include <gtkmm/radioaction.h>
  81 #include <synfig/rect.h>
  82
  83 #include "adjust_window.h"
  84
  85 #include <synfig/transform.h>
  86
  87 /* === M A C R O S ========================================================= */
  88
  89 #ifndef DEBUGPOINT_CLASS
  90 #if     _DEBUG
  91 #define DEBUGPOINT_CLASS(x)             struct debugpointclass_ ## x { debugpointclass_ ## x () { DEBUGPOINT(); } ~debugpointclass_ ## x () { DEBUGPOINT(); } } badfthguae_ ## x ;
  92 #else
  93 #define DEBUGPOINT_CLASS(x)
  94 #endif
  95 #endif
  96
  97 /* === T Y P E D E F S ===================================================== */
  98
  99 /* === C L A S S E S & S T R U C T S ======================================= */
 100
 101 namespace synfig {
 102         class TransformStack;
 103 }
 104
 105 namespace studio {
 106
 107 class CanvasViewUIInterface;
 108 class CanvasViewSelectionManager;
 109
 110 class CellRenderer_TimeTrack;
 111 class CellRenderer_ValueBase;
 112 class UniversalScrubber;
 113 class WorkArea;
 114
 115 class Duckmatic;
 116
 117 class Preview;
 118 struct PreviewInfo;
 119 class AudioContainer;
 120
 121 class Widget_Sound;
 122 class Widget_Timeslider;
 123 class Widget_Time;
 124
 125 class Dialog_SoundSelect;
 126 class Dialog_Preview;
 127
 128 class Dock_Layers;
 129 class Dock_Children;
 130 class Dock_Keyframes;
 131
 132 class CanvasView : public Gtk::Window, public etl::shared_object
 133 {
 134         friend class UniversalScrubber;
 135         friend class Dock_Layers;
 136         friend class Dock_Children;
 137         friend class Dock_Keyframes;
 138
 139         friend class CanvasViewUIInterface;
 140         friend class CanvasViewSelectionManager;
 141
 142         friend class Duckmatic;
 143
 144         /*
 145  -- ** -- P U B L I C   T Y P E S ---------------------------------------------
 146         */
 147
 148 public:
 149
 150         typedef etl::handle<CanvasView> Handle;
 151
 152         typedef etl::handle<const CanvasView> ConstHandle;
 153
 154         typedef etl::loose_handle<CanvasView> LooseHandle;
 155
 156         typedef LayerTreeStore::Model LayerTreeModel;
 157
 158         typedef ChildrenTreeStore::Model ChildrenTreeModel;
 159
 160         //! Create an instance of this class whenever doing a longer task.
 161         /*! Make sure that you check the bool value of this class occasionally
 162         **      to make sure the action has not been canceled. */
 163         class IsWorking
 164         {
 165                 CanvasView &canvas_view_;
 166
 167         public:
 168                 IsWorking(CanvasView &canvas_view_);
 169                 ~IsWorking();
 170                 operator bool()const;
 171         };
 172         friend class IsWorking;
 173
 174         typedef synfigapp::CanvasInterface::Mode Mode;
 175
 176         void set_grid_snap_toggle(bool flag) { grid_snap_toggle->set_active(flag); }
 177         void set_grid_show_toggle(bool flag) { grid_show_toggle->set_active(flag); }
 178
 179         /*
 180  -- ** -- P R I V A T E   D A T A ---------------------------------------------
 181         */
 182
 183 public:
 184         std::auto_ptr<WorkArea> work_area;
 185
 186         WorkArea* get_work_area() { return work_area.get(); }
 187 private:
 188
 189         synfig::TransformStack curr_transform_stack;
 190         bool curr_transform_stack_set;
 191
 192         synfig::Rect bbox;
 193
 194         // DEBUGPOINT_CLASS(1);
 195
 196         //! State Machine
 197         Smach smach_;
 198
 199         // DEBUGPOINT_CLASS(2);
 200
 201         etl::loose_handle<Instance> instance_;
 202         etl::handle<synfigapp::CanvasInterface> canvas_interface_;
 203
 204         // DEBUGPOINT_CLASS(3);
 205
 206         //! Sound and information to play it
 207         etl::handle<AudioContainer>             audio;
 208         studio::Widget_Sound                    *disp_audio; //should this be put into thing too?
 209
 210         sigc::connection                                playcon;
 211         sigc::connection                                stopcon;
 212
 213         std::auto_ptr<UniversalScrubber> universal_scrubber;
 214
 215         //! Tooltip controller
 216         Gtk::Tooltips tooltips;
 217
 218         // DEBUGPOINT_CLASS(4);
 219
 220         //! TreeModel for the layers
 221         LayerTreeModel layer_tree_model;
 222
 223         //! TreeModel for the the children
 224         ChildrenTreeModel children_tree_model;
 225
 226         //Glib::RefPtr<LayerTreeStore> layer_tree_store_;
 227
 228         //Glib::RefPtr<ChildrenTreeStore> children_tree_store_;
 229
 230         //Glib::RefPtr<KeyframeTreeStore> keyframe_tree_store_;
 231
 232         // DEBUGPOINT_CLASS(5);
 233
 234         //std::map<synfig::String,Glib::RefPtr<Gtk::TreeModel> > tree_model_book_;
 235         std::map<synfig::String,Glib::RefPtr<Glib::ObjectBase> > ref_obj_book_;
 236         std::map<synfig::String,Gtk::Widget*> ext_widget_book_;
 237
 238         //! The time adjustment's scope is defined by the time_window adjustment
 239         Gtk::Adjustment time_adjustment_;
 240
 241         //! The time_window adjustment governs the position of the time window on the whole time line
 242         //Gtk::Adjustment time_window_adjustment_;
 243         studio::Adjust_Window time_window_adjustment_;
 244
 245         LayerTree *layer_tree;
 246
 247         ChildrenTree *children_tree;
 248
 249         KeyframeTree *keyframe_tree;
 250
 251         Gtk::Widget *keyframe_tab_child;
 252
 253         Gtk::ProgressBar *progressbar;
 254         Gtk::Statusbar *statusbar;
 255
 256         Gtk::TreeRow children_canvas_row;
 257         Gtk::TreeRow children_valuenode_row;
 258
 259         Gtk::Button *stopbutton;
 260         Gtk::Button *refreshbutton;
 261         Gtk::Button *treetogglebutton;
 262         Gtk::Notebook *notebook;
 263         Gtk::Widget *timebar;
 264
 265         Widget_Time *current_time_widget;
 266         void on_current_time_widget_changed();
 267
 268         std::auto_ptr<Widget_Timeslider>                timeslider;
 269
 270         std::list<sigc::connection> duck_changed_connections;
 271
 272         Gtk::Button *animatebutton;
 273         Gtk::Button *keyframebutton;
 274
 275 /*      DEBUGPOINT_CLASS(8);
 276
 277         Gtk::Menu duckmaskmenu;
 278         DEBUGPOINT_CLASS(77);
 279         Gtk::Menu qualitymenu;
 280         DEBUGPOINT_CLASS(6);
 281
 282         Gtk::Menu filemenu;
 283         DEBUGPOINT_CLASS(777);
 284         Gtk::Menu editmenu;
 285         DEBUGPOINT_CLASS(71);
 286         Gtk::Menu canvasmenu;
 287         DEBUGPOINT_CLASS(73);
 288 public:
 289         Gtk::Menu layermenu;
 290 private:
 291         DEBUGPOINT_CLASS(74);
 292         Gtk::Menu newlayermenu;
 293         DEBUGPOINT_CLASS(76);
 294         Gtk::Menu viewmenu;
 295
 296         DEBUGPOINT_CLASS(99);
 297         Gtk::Menu keyframemenu;
 298
 299         Gtk::Menu parammenu;
 300         DEBUGPOINT_CLASS(9);
 301         Gtk::Menu trackmenu;
 302         DEBUGPOINT_CLASS(7);
 303
 304         Gtk::CheckMenuItem* duck_mask_position;
 305         Gtk::CheckMenuItem* duck_mask_vertex;
 306         Gtk::CheckMenuItem* duck_mask_tangent;
 307         Gtk::CheckMenuItem* duck_mask_radius;
 308         Gtk::CheckMenuItem* duck_mask_width;
 309         Gtk::CheckMenuItem* duck_mask_angle;
 310 */
 311         Gtk::Menu parammenu;
 312
 313         Glib::RefPtr<Gtk::ToggleAction> grid_snap_toggle;
 314         Glib::RefPtr<Gtk::ToggleAction> grid_show_toggle;
 315
 316         Gtk::RadioButtonGroup quality_group;
 317         Gtk::RadioButtonGroup low_res_pixel_size_group;
 318
 319         Glib::RefPtr<Gtk::ActionGroup> action_group;
 320
 321         etl::handle<synfigapp::UIInterface> ui_interface_;
 322         etl::handle<synfigapp::SelectionManager> selection_manager_;
 323
 324         bool is_playing_;
 325
 326         sigc::signal<void> signal_deleted_;
 327
 328         bool rebuild_ducks_queued;
 329         sigc::connection queue_rebuild_ducks_connection;
 330
 331         /*
 332  -- ** -- P U B L I C   D A T A -----------------------------------------------
 333         */
 334
 335 public:
 336         void queue_rebuild_ducks();
 337         sigc::signal<void>& signal_deleted() { return signal_deleted_; }
 338
 339         Gtk::Menu mainmenu;
 340
 341         bool duck_refresh_flag;
 342         bool duck_refresh_needed;
 343
 344         //! This is for the IsWorking class.
 345         int working_depth;
 346
 347         bool cancel;
 348
 349         /*
 350  -- ** -- D I A L O G S -------------------------------------------------------
 351         */
 352
 353 public:
 354
 355         CanvasProperties canvas_properties;
 356         CanvasOptions canvas_options;
 357         RenderSettings render_settings;
 358         Dialog_Waypoint waypoint_dialog;
 359         Dialog_Keyframe keyframe_dialog;
 360
 361         std::auto_ptr<Dialog_Preview>                   preview_dialog;
 362         //std::auto_ptr<Dialog_PreviewOptions>  previewoption_dialog;
 363         std::auto_ptr<Dialog_SoundSelect>               sound_dialog;
 364
 365         /*
 366  -- ** -- P R I V A T E   M E T H O D S ---------------------------------------
 367         */
 368
 369 private:
 370
 371         // Constructor is private to force the use of the "create()" constructor
 372         CanvasView(etl::loose_handle<Instance> instance,etl::handle<synfigapp::CanvasInterface> canvas_interface);
 373
 374         //! Constructor Helper
 375         // Gtk::Widget* create_layer_tree();
 376
 377         //! Constructor Helper
 378         // Gtk::Widget* create_children_tree();
 379
 380         //! Constructor Helper
 381         // Gtk::Widget* create_keyframe_tree();
 382
 383         //! Constructor Helper
 384         Gtk::Widget* create_status_bar();
 385
 386         //! Constructor Helper - Initializes all of the menus
 387         void init_menus();
 388
 389         bool duck_change_param(const synfig::Point &value,synfig::Layer::Handle layer, synfig::String param_name);
 390
 391         void refresh_time_window();
 392
 393         void time_was_changed();
 394
 395         void refresh_rend_desc();
 396
 397         void toggle_duck_mask(Duckmatic::Type type);
 398
 399         Gtk::Widget *create_work_area();
 400
 401         Gtk::Widget *create_time_bar();
 402
 403         void popup_param_menu_bezier(float location, synfigapp::ValueDesc value_desc)
 404         { popup_param_menu(value_desc,location,true); }
 405
 406         void popup_param_menu(synfigapp::ValueDesc value_desc, float location=0, bool bezier=false);
 407
 408         void workarea_layer_selected(synfig::Layer::Handle layer);
 409
 410         void selected_layer_color_set(synfig::Color color);
 411
 412         void register_layer_type(synfig::Layer::Book::value_type &lyr,std::map<synfig::String,Gtk::Menu*>*);
 413
 414         //! Rebuilds the "new layer" menu
 415         void build_new_layer_menu(Gtk::Menu &menu);
 416
 417         void rebuild_ducks_layer_(synfig::TransformStack& transform_stack, synfig::Canvas::Handle canvas, std::set<synfig::Layer::Handle>& selected_list);
 418
 419         void decrease_low_res_pixel_size();
 420         void increase_low_res_pixel_size();
 421
 422         /*
 423  -- ** -- P U B L I C   M E T H O D S -----------------------------------------
 424         */
 425
 426 public:
 427         const synfig::TransformStack& get_curr_transform_stack()const { return curr_transform_stack; }
 428
 429         const synfig::Rect& get_bbox()const { return bbox; }
 430
 431         Glib::RefPtr<Glib::ObjectBase> get_ref_obj(const synfig::String& x);
 432         Glib::RefPtr<const Glib::ObjectBase> get_ref_obj(const synfig::String& x)const;
 433         void set_ref_obj(const synfig::String& x, Glib::RefPtr<Glib::ObjectBase> y);
 434
 435         Glib::RefPtr<Gtk::TreeModel> get_tree_model(const synfig::String& x);
 436         Glib::RefPtr<const Gtk::TreeModel> get_tree_model(const synfig::String& x)const;
 437         void set_tree_model(const synfig::String& x, Glib::RefPtr<Gtk::TreeModel> y);
 438
 439         Gtk::Widget* get_ext_widget(const synfig::String& x);
 440         void set_ext_widget(const synfig::String& x, Gtk::Widget* y);
 441
 442         //std::map<synfig::String,Gtk::Widget*>& tree_view_book() { return tree_view_book_; }
 443         //std::map<synfig::String,Gtk::Widget*>& ext_widget_book() { return tree_view_book_; }
 444
 445         void popup_main_menu();
 446
 447         Smach& get_smach() { return smach_; }
 448
 449         const Smach& get_smach()const { return smach_; }
 450
 451         Smach::event_result process_event_key(EventKey x);
 452
 453         void popup_layer_menu(synfig::Layer::Handle layer);
 454
 455         virtual ~CanvasView();
 456
 457         void set_mode(Mode x) { canvas_interface()->set_mode(x); }
 458
 459         Mode get_mode()const { return canvas_interface()->get_mode(); }
 460
 461         Gtk::Adjustment &time_adjustment() { return time_adjustment_; }
 462
 463         const Gtk::Adjustment &time_adjustment()const { return time_adjustment_; }
 464
 465         studio::Adjust_Window &time_window_adjustment() { return time_window_adjustment_; }
 466
 467         const studio::Adjust_Window &time_window_adjustment()const { return time_window_adjustment_; }
 468
 469         etl::handle<synfigapp::UIInterface> get_ui_interface() { return ui_interface_;}
 470
 471         etl::handle<synfigapp::SelectionManager> get_selection_manager() { return selection_manager_; }
 472
 473         Glib::RefPtr<Gtk::TreeModel> layer_tree_store() { return get_tree_model("layers"); }
 474
 475         Glib::RefPtr<const Gtk::TreeModel> layer_tree_store()const { return get_tree_model("layers"); }
 476
 477         Glib::RefPtr<Gtk::TreeModel> children_tree_store() { return get_tree_model("children"); }
 478
 479         Glib::RefPtr<const Gtk::TreeModel> children_tree_store()const { return get_tree_model("children"); }
 480
 481         Glib::RefPtr<Gtk::TreeModel> keyframe_tree_store() { return get_tree_model("keyframes"); }
 482
 483         Glib::RefPtr<const Gtk::TreeModel> keyframe_tree_store()const { return get_tree_model("keyframes"); }
 484
 485         void set_time(synfig::Time t) { canvas_interface_->set_time(t); }
 486
 487         synfig::Time get_time() { return canvas_interface_->get_time(); }
 488
 489         etl::handle<synfig::Canvas> get_canvas()const { return canvas_interface_->get_canvas(); }
 490
 491         etl::handle<Instance> get_instance()const { return instance_; }
 492
 493         etl::handle<synfigapp::CanvasInterface> canvas_interface() { return canvas_interface_; }
 494
 495         etl::handle<const synfigapp::CanvasInterface> canvas_interface()const { return canvas_interface_; }
 496
 497         void add_actions_to_menu(Gtk::Menu *menu,   const synfigapp::Action::ParamList &param_list, synfigapp::Action::Category category=synfigapp::Action::CATEGORY_ALL)const;
 498
 499         //! Updates the title of the window
 500         void update_title();
 501
 502         //! Closes this document
 503         bool close_instance();
 504
 505         //! Closes this canvas view
 506         bool close_view();
 507
 508         //!     Stops the currently executing action
 509         /*! \see get_cancel_status(), reset_cancel_status(), IsWorking */
 510         void stop() { cancel=true; }
 511
 512         //! Returns the cancel status
 513         /*! \see stop(), reset_cancel_status(), IsWorking */
 514         bool get_cancel_status()const { return cancel; }
 515
 516         //! Resets the cancel status
 517         /*! \see stop(), get_cancel_status(), IsWorking */
 518         void reset_cancel_status() { cancel=false; }
 519
 520         void new_child_canvas();
 521
 522         //! Rebuilds layer_tree_store_ from the Canvas. Maintains selected items.
 523         void rebuild_tables();
 524
 525         //! Builds layer_tree_store_ from the Canvas. Does not maintain selected items.
 526         void build_tables();
 527
 528         //! Refreshes the data for the tables
 529         void refresh_tables();
 530
 531         //void rebuild_layer_table();
 532         //void build_layer_table();
 533         //void refresh_layer_table();
 534
 535 //      void rebuild_canvas_table();
 536 //      void build_canvas_table();
 537 //      void refresh_canvas_table();
 538
 539 //      void rebuild_valuenode_table();
 540 //      void build_valuenode_table();
 541 //      void refresh_valuenode_table();
 542
 543         //! \writeme
 544         void rebuild_ducks();
 545
 546         //bool add_to_ducks(synfigapp::ValueDesc value_desc, synfig::ParamDesc *param_desc=NULL);
 547
 548         //! Starts "playing" the animation in real-time
 549         void play();
 550
 551         //! Shows the tables (Layer/Children)
 552         void show_tables();
 553
 554         //! Hides the tables (Layer/Children)
 555         void hide_tables();
 556
 557         //! Toggles the tables
 558         void toggle_tables();
 559
 560         //! Gets the table status
 561         bool tables_are_visible();
 562
 563         //! Shows the time bar
 564         void show_timebar();
 565
 566         //! Hides the time bar
 567         void hide_timebar();
 568
 569         //t Enables or disables interaction with the timebar
 570         void set_sensitive_timebar(bool sensitive);
 571
 572         void time_zoom_in();
 573         void time_zoom_out();
 574
 575         void add_layer(synfig::String x);
 576
 577         void show_keyframe_dialog();
 578
 579         void play_audio(float t);
 580         void stop_audio();
 581
 582         void image_import();
 583
 584         void on_waypoint_clicked_canvasview(synfigapp::ValueDesc,std::set<synfig::Waypoint,std::less<synfig::UniqueID> >, int button);
 585
 586         void preview_option() {on_preview_option();}
 587
 588         void present();
 589
 590         bool is_playing() { return is_playing_; }
 591
 592         /*
 593  -- ** -- S I G N A L   T E R M I N A L S -------------------------------------
 594         */
 595
 596 private:
 597
 598         void on_select_layers();
 599         void on_unselect_layers();
 600
 601         void on_input_device_changed(GdkDevice*);
 602
 603         virtual void on_hide();
 604
 605         virtual bool on_focus_in_event(GdkEventFocus*);
 606         virtual bool on_focus_out_event(GdkEventFocus*);
 607
 608         //bool on_children_tree_event(GdkEvent *event);
 609
 610         bool on_keyframe_tree_event(GdkEvent *event);
 611
 612         //void on_children_edited_value(const Glib::ustring&path_string,synfig::ValueBase value);
 613
 614         void on_dirty_preview();
 615
 616         bool on_children_user_click(int, Gtk::TreeRow, ChildrenTree::ColumnID);
 617
 618         bool on_layer_user_click(int, Gtk::TreeRow, LayerTree::ColumnID);
 619
 620 //      void on_layer_toggle(const Glib::ustring& path_string, Gtk::TreeModelColumn<bool> column);
 621
 622         void on_mode_changed(synfigapp::CanvasInterface::Mode mode);
 623
 624 //      void on_layer_waypoint_clicked(const Glib::ustring &, synfig::ValueNode_Animated::WaypointList::iterator);
 625
 626         //void on_children_waypoint_clicked(const Glib::ustring &, synfig::ValueNode_Animated::WaypointList::iterator);
 627
 628         void on_waypoint_changed();
 629
 630         void on_waypoint_delete();
 631
 632         void on_refresh_pressed();
 633
 634         void on_id_changed();
 635
 636         void on_time_changed();
 637
 638         /*
 639         void on_layer_raise_pressed();
 640         void on_layer_lower_pressed();
 641         void on_layer_duplicate_pressed();
 642         void on_layer_delete_pressed();
 643         */
 644
 645         void on_keyframe_add_pressed();
 646
 647         void on_keyframe_duplicate_pressed();
 648
 649         void on_keyframe_remove_pressed();
 650
 651         void on_animate_button_pressed();
 652
 653         void on_keyframe_button_pressed();
 654
 655         void on_preview_option();
 656         void on_preview_create(const PreviewInfo &);
 657
 658         void on_audio_option();
 659         void on_audio_file_change(const std::string &f);
 660         void on_audio_offset_change(const synfig::Time &t);
 661
 662         void on_audio_file_notify();
 663         void on_audio_offset_notify();
 664
 665         bool on_duck_changed(const synfig::Point &value,const synfigapp::ValueDesc& value_desc);
 666         bool on_duck_angle_changed(const synfig::Angle &rotation,const synfigapp::ValueDesc& value_desc);
 667
 668         void on_layer_toggle(synfig::Layer::Handle);
 669
 670         void on_edited_value(synfigapp::ValueDesc,synfig::ValueBase);
 671
 672         void on_drop_drag_data_received(const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, const Gtk::SelectionData& selection_data, guint info, guint time);
 673
 674         //void on_audio_play();
 675         bool on_audio_scrub();
 676
 677 protected:
 678         bool close_instance_when_safe();
 679         bool on_delete_event(GdkEventAny* event);
 680
 681         /*
 682  -- ** -- S T A T I C   P U B L I C   M E T H O D S ---------------------------
 683         */
 684
 685 public:
 686
 687         static etl::handle<studio::CanvasView> create(etl::loose_handle<Instance> instance,etl::handle<synfig::Canvas> canvas);
 688         static std::list<int>& get_pixel_sizes();
 689
 690 }; // END of class CanvasView
 691
 692 }; // END of namespace studio
 693
 694 /* === E N D =============================================================== */
 695
 696 #endif