111 lines
3.0 KiB
C++
111 lines
3.0 KiB
C++
/*
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* Cantata
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*
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* Copyright (c) 2011-2013 Craig Drummond <craig.p.drummond@gmail.com>
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*
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* ----
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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; either version 2 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 GNU
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* 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
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef SPINBOX_H
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#define SPINBOX_H
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#include <QSpinBox>
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#include <QFontMetrics>
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class EmptySpinBox : public QSpinBox
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{
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public:
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EmptySpinBox(QWidget *parent)
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: QSpinBox(parent)
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, allowEmpty(false) {
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}
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void setAllowEmpty() {
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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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allowEmpty=true;
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}
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QSize sizeHint() const {
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return QSpinBox::sizeHint()+QSize(fontMetrics().height()/2, 0);
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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 allowEmpty && 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 allowEmpty && 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 allowEmpty && val==minimum() ? QString() : QSpinBox::textFromValue(val);
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}
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private:
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bool allowEmpty;
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};
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#ifdef Q_WS_WIN
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typedef EmptySpinBox SpinBox;
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#else
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class QToolButton;
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class SpinBox : public QWidget
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{
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Q_OBJECT
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public:
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SpinBox(QWidget *p);
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virtual ~SpinBox();
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void setSpecialValueText(const QString &text) { spin->setSpecialValueText(text); }
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void setSuffix(const QString &text) { spin->setSuffix(text); }
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void setSingleStep(int v) { spin->setSingleStep(v); }
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void setMinimum(int v) { spin->setMinimum(v); }
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void setMaximum(int v) { spin->setMaximum(v); }
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void setRange(int min, int max) { spin->setRange(min, max); }
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void setValue(int v);
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int value() const { return spin->value(); }
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int minimum() const{ return spin->minimum(); }
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int maximum() const { return spin->maximum(); }
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void setFocus() const { spin->setFocus(); }
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void setAllowEmpty() { spin->setAllowEmpty(); }
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Q_SIGNALS:
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void valueChanged(int v);
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private Q_SLOTS:
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void incPressed();
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void decPressed();
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void checkValue();
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private:
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bool eventFilter(QObject *obj, QEvent *event);
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void paintEvent(QPaintEvent *e);
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private:
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EmptySpinBox *spin;
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QToolButton *incButton;
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QToolButton *decButton;
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};
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#endif // Q_WS_WIN
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#endif
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