1 /* === S Y N F I G ========================================================= */
2 /*! \file widget_keyframe_list.h
3 ** \brief A custom widget to manage keyframes in the timeline.
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
9 ** Copyright (c) 2009 Carlos López
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.
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.
22 /* ========================================================================= */
24 /* === S T A R T =========================================================== */
26 #ifndef __SYNFIG_STUDIO_WIDGET_KEYFRAME_LIST_H
27 #define __SYNFIG_STUDIO_WIDGET_KEYFRAME_LIST_H
29 /* === H E A D E R S ======================================================= */
31 #include <gtkmm/drawingarea.h>
32 #include <gtkmm/adjustment.h>
33 #include <gtkmm/tooltips.h>
34 #include <synfig/keyframe.h>
35 #include <sigc++/connection.h>
36 #include <synfigapp/canvasinterface.h>
39 /* === M A C R O S ========================================================= */
41 /* === T Y P E D E F S ===================================================== */
43 /* === C L A S S E S & S T R U C T S ======================================= */
47 class Widget_Keyframe_List : public Gtk::DrawingArea
49 //! Tooltips class. It is deprecated since gtkmm 2.12
50 //! replace with Tooltip class or use the own tooltip widget's members
51 Gtk::Tooltips tooltips;
53 //! The canvas interface being watched
54 etl::loose_handle<synfigapp::CanvasInterface> canvas_interface_;
56 //! Time adjustment window
57 Gtk::Adjustment adj_default;
58 Gtk::Adjustment *adj_timescale;
60 //!The list of keyframes to be drawn on the widget and moved with mouse
61 synfig::KeyframeList default_kf_list_;
62 mutable synfig::KeyframeList* kf_list_;
64 //! The frames per second of the canvas
67 //! Time radius to click a keyframe
68 synfig::Time time_ratio;
70 //!True if it is editable. Keyframes can be moved.
73 //!True if a keyframe is being dragged.
76 //!True if a keyframe has been moved
79 //!Holds the selected keyframe of the keyframe list
80 synfig::Keyframe selected_kf;
81 synfig::Keyframe selected_none;
84 //!The time of the selected keyframe
85 synfig::Time selected_kf_time;
87 //!The time of the selected keyframe during draging
88 synfig::Time dragging_kf_time;
90 //!Connectors for handling the signals of the time adjustment
91 sigc::connection time_value_change;
92 sigc::connection time_other_change;
96 //!Default constructor
97 Widget_Keyframe_List();
100 ~Widget_Keyframe_List();
102 //!Loads a new keyframe list on the widget.
103 void set_kf_list(synfig::KeyframeList* x);
105 //!Member for private data.
106 synfig::KeyframeList* get_kf_list()const { return kf_list_; }
108 //!Member for private data
109 void set_editable(bool x=true) { editable_=x; }
111 //!Member for private data
112 bool get_editable()const { return editable_; }
115 //!Store the selected keyframe value
116 void set_selected_keyframe(const synfig::Keyframe &x);
118 //!Returns the selected keyframe
119 const synfig::Keyframe& get_selected_keyframe() { return selected_kf; }
121 //! Set the time adjustment and proper connects its change signals
122 void set_time_adjustment(Gtk::Adjustment *x);
125 void set_fps(float x);
127 //! Set the canvas interface
128 void set_canvas_interface(etl::loose_handle<synfigapp::CanvasInterface> h);
130 //! Performs the keyframe movement. Returns true if it was sucessful
131 //! @return true: if success otherwise false
132 //! |delta=false: permorm normal move. true: perform delta movement
133 bool perform_move_kf(bool delta);
137 /* ======================= EVENTS HANDLERS ===========================*/
138 //!Redraw event. Should draw all the keyframes + the selected + the dragged
139 bool redraw(GdkEventExpose*bleh=NULL);
141 //!Mouse event handler.
142 bool on_event(GdkEvent *event);
143 }; // END of class Keyframe_List
145 }; // END of namespace studio
148 /* === E N D =============================================================== */