1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtWidgets module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QCHECKBOX_H 41 #define QCHECKBOX_H 42 43 #include <QtWidgets/qtwidgetsglobal.h> 44 #include <QtWidgets/qabstractbutton.h> 45 46 QT_REQUIRE_CONFIG(checkbox); 47 48 QT_BEGIN_NAMESPACE 49 50 51 class QCheckBoxPrivate; 52 class QStyleOptionButton; 53 54 class Q_WIDGETS_EXPORT QCheckBox : public QAbstractButton 55 { 56 Q_OBJECT 57 58 Q_PROPERTY(bool tristate READ isTristate WRITE setTristate) 59 60 public: 61 explicit QCheckBox(QWidget *parent = nullptr); 62 explicit QCheckBox(const QString &text, QWidget *parent = nullptr); 63 ~QCheckBox(); 64 65 QSize sizeHint() const override; 66 QSize minimumSizeHint() const override; 67 68 void setTristate(bool y = true); 69 bool isTristate() const; 70 71 Qt::CheckState checkState() const; 72 void setCheckState(Qt::CheckState state); 73 74 Q_SIGNALS: 75 void stateChanged(int); 76 77 protected: 78 bool event(QEvent *e) override; 79 bool hitButton(const QPoint &pos) const override; 80 void checkStateSet() override; 81 void nextCheckState() override; 82 void paintEvent(QPaintEvent *) override; 83 void mouseMoveEvent(QMouseEvent *) override; 84 void initStyleOption(QStyleOptionButton *option) const; 85 86 87 private: 88 Q_DECLARE_PRIVATE(QCheckBox) 89 Q_DISABLE_COPY(QCheckBox) 90 friend class QAccessibleButton; 91 }; 92 93 QT_END_NAMESPACE 94 95 #endif // QCHECKBOX_H 96