1 /*
2  * Copyright (C) 2016-2017 Robin Gareus <robin@gareus.org>
3  * Copyright (C) 2016-2018 Ben Loftis <ben@harrisonconsoles.com>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License along
16  * with this program; if not, write to the Free Software Foundation, Inc.,
17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18  */
19 
20 #ifndef __gtkardour_mini_timeline_h__
21 #define __gtkardour_mini_timeline_h__
22 
23 #include <list>
24 #include <pangomm.h>
25 
26 #include "pbd/signals.h"
27 
28 #include "ardour/ardour.h"
29 #include "ardour/types.h"
30 #include "ardour/session_handle.h"
31 
32 #include "gtkmm2ext/cairo_widget.h"
33 #include "gtkmm2ext/utils.h"
34 
35 #include "audio_clock.h"
36 
37 namespace ARDOUR {
38 	class Session;
39 }
40 
41 namespace Gtk {
42 	class Menu;
43 }
44 
45 class MiniTimeline : public CairoWidget, public ARDOUR::SessionHandlePtr, public PBD::ScopedConnectionList
46 {
47 
48 public:
49 	MiniTimeline ();
50 	~MiniTimeline ();
51 
52 	void set_session (ARDOUR::Session *);
53 
54 private:
55 	void session_going_away ();
56 	void super_rapid_update ();
57 
58 	void on_size_request (Gtk::Requisition*);
59 	void on_size_allocate (Gtk::Allocation&);
60 	void dpi_changed ();
61 	void set_colors ();
62 	void parameter_changed (std::string const &);
63 
64 	void calculate_time_width ();
65 	void calculate_time_spacing ();
66 	void update_minitimeline ();
67 	void draw_dots (cairo_t*, int left, int right, int y, Gtkmm2ext::Color);
68 	int  draw_mark (cairo_t*, int x0, int x1, const std::string&, bool& prelight);
69 	int  draw_edge (cairo_t*, int x0, int x1, bool left, const std::string&, bool& prelight);
70 
71 	void render (Cairo::RefPtr<Cairo::Context> const&, cairo_rectangle_t*);
72 	void format_time (samplepos_t when);
73 
74 	bool on_button_press_event (GdkEventButton*);
75 	bool on_button_release_event (GdkEventButton*);
76 	bool on_scroll_event (GdkEventScroll*);
77 	bool on_motion_notify_event (GdkEventMotion*);
78 	bool on_leave_notify_event (GdkEventCrossing*);
79 
80 	void build_minitl_context_menu ();
81 	void set_span (ARDOUR::samplecnt_t);
82 
83 	Glib::RefPtr<Pango::Layout> _layout;
84 	sigc::connection super_rapid_connection;
85 	PBD::ScopedConnectionList marker_connection;
86 	PBD::ScopedConnectionList session_connection;
87 
88 	samplepos_t _last_update_sample;
89 	AudioClock::Mode _clock_mode;
90 	int _time_width;
91 	int _time_height;
92 
93 	int _n_labels;
94 	double _px_per_sample;
95 	ARDOUR::samplecnt_t _time_granularity;
96 	ARDOUR::samplecnt_t _time_span_samples;
97 	int _marker_height;
98 
99 	int _pointer_x;
100 	int _pointer_y;
101 
102 	Gtk::Menu* _minitl_context_menu;
103 
104 	uint32_t _phead_color;
105 
106 	struct JumpRange {
107 		JumpRange (int l, int r, samplepos_t t, bool p = false)
leftJumpRange108 			: left (l), right (r), to (t), prelight (p) {}
109 		int left;
110 		int right;
111 		samplepos_t to;
112 		bool prelight;
113 	};
114 
115 	typedef std::list <JumpRange> JumpList;
116 	JumpList _jumplist;
117 };
118 
119 #endif
120