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60 lines
2.4 KiB
C++
60 lines
2.4 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2020 F4EXB //
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// written by Edouard Griffiths //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#ifndef SDRGUI_GUI_DOUBLEVALIDATOR_H_
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#define SDRGUI_GUI_DOUBLEVALIDATOR_H_
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#include <QDoubleValidator>
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class DoubleValidator : public QDoubleValidator
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{
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public:
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DoubleValidator(double bottom, double top, int decimals, QObject * parent) :
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QDoubleValidator(bottom, top, decimals, parent)
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{
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}
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QValidator::State validate(QString &s, int &i) const
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{
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if (s.isEmpty() || s == "-") {
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return QValidator::Intermediate;
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}
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QChar decimalPoint = locale().decimalPoint();
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if(s.indexOf(decimalPoint) != -1) {
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int charsAfterPoint = s.length() - s.indexOf(decimalPoint) - 1;
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if (charsAfterPoint > decimals()) {
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return QValidator::Invalid;
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}
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}
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bool ok;
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double d = locale().toDouble(s, &ok);
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if (ok && d >= bottom() && d <= top()) {
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return QValidator::Acceptable;
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} else {
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return QValidator::Invalid;
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}
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}
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};
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#endif // SDRGUI_GUI_DOUBLEVALIDATOR_H_
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