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sdrangel/sdrgui/gui/nanosecondsdelegate.cpp

52 lines
2.3 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
// written by Christian Daniel //
// Copyright (C) 2015-2019 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
// Copyright (C) 2021-2023 Jon Beniston, M7RCE <jon@beniston.com> //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or //
// (at your option) any later version. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#include "nanosecondsdelegate.h"
NanoSecondsDelegate::NanoSecondsDelegate()
{
}
QString NanoSecondsDelegate::displayText(const QVariant &value, const QLocale &locale) const
{
(void) locale;
if (value.toString() == "")
{
return "";
}
else
{
double timeInNanoSec = value.toDouble();
QString s;
if (timeInNanoSec < 1e3) {
s = QString("%1 ns").arg(timeInNanoSec, 0, 'f', 3);
} else if (timeInNanoSec < 1e6) {
s = QString("%1 us").arg(timeInNanoSec/1e3, 0, 'f', 3);
} else if (timeInNanoSec < 1e9) {
s = QString("%1 ms").arg(timeInNanoSec/1e6, 0, 'f', 3);
} else {
s = QString("%1 s").arg(timeInNanoSec/1e9, 0, 'f', 3);
}
return s;
}
}