2 * This file is part of the PulseView project.
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #ifndef PULSEVIEW_UTIL_HPP
22 #define PULSEVIEW_UTIL_HPP
26 #include <boost/multiprecision/cpp_dec_float.hpp>
39 /// Timestamp type providing yoctosecond resolution.
40 typedef boost::multiprecision::number<
41 boost::multiprecision::cpp_dec_float<24>,
42 boost::multiprecision::et_off> Timestamp;
44 extern const int FirstSIPrefixPower;
47 * Formats a given value with the specified SI prefix.
48 * @param v The value to format.
49 * @param unit The unit of quantity.
50 * @param prefix The number of the prefix, from 0 for 'yotta' up to
51 * 16 for 'yokto'. If prefix is set to -1, the prefix will be calculated.
52 * @param precision The number of digits after the decimal separator.
53 * @param sign Whether or not to add a sign also for positive numbers.
55 * @return The formated value.
57 QString format_si_value(
58 const Timestamp& v, QString unit, int prefix = -1,
59 unsigned precision = 0, bool sign = true);
62 * Formats a given time with the specified SI prefix.
63 * @param t The time value in seconds to format.
64 * @param prefix The number of the prefix, from 0 for 'yotta' up to
65 * 16 for 'yokto'. If prefix is set to -1, the prefix will be calculated.
66 * @param unit The unit of quantity.
67 * @param precision The number of digits after the decimal separator or period (.).
69 * @return The formated value.
72 const Timestamp& t, int prefix = -1,
73 TimeUnit unit = Time, unsigned precision = 0);
76 * Formats a given time value with a SI prefix so that the
77 * value is between 1 and 999.
78 * @param second The time value in seconds to format.
80 * @return The formated value.
82 QString format_second(const Timestamp& second);
87 Q_DECLARE_METATYPE(pv::util::Timestamp)
89 #endif // PULSEVIEW_UTIL_HPP