53 lines
2.2 KiB
C++
53 lines
2.2 KiB
C++
/*
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* Cantata
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*
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* Copyright (c) 2011-2012 Craig Drummond <craig.p.drummond@gmail.com>
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*
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*/
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/****************************************************************************************
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* Copyright (c) 2011 Sergey Ivanov <123kash@gmail.com> *
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* *
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* This program is free software; you can redistribute it and/or modify it under *
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* the terms of the GNU General Public License as published by the Free Software *
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* Foundation; either version 2 of the License, or (at your option) any later *
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* version. *
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* *
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY *
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A *
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* PARTICULAR PURPOSE. See the GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License along with *
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* this program. If not, see <http://www.gnu.org/licenses/>. *
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****************************************************************************************/
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#ifndef CLEARSPINBOX_H
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#define CLEARSPINBOX_H
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#include <QSpinBox>
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class ClearSpinBox : public QSpinBox
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{
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public:
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ClearSpinBox(QWidget *parent=0)
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: QSpinBox(parent) {
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setAlignment(Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter);
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setKeyboardTracking(true);
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setMaximum(3000);
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}
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protected:
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virtual QValidator::State validate(QString &input, int &pos) const {
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return input.isEmpty() ? QValidator::Acceptable : QSpinBox::validate(input, pos);
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}
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virtual int valueFromText(const QString &text) const {
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return text.isEmpty() ? minimum() : QSpinBox::valueFromText(text);
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}
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virtual QString textFromValue(int val) const {
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return val==minimum() ? QString() : QSpinBox::textFromValue(val);
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}
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};
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#endif // CLEARSPINBOX_H
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