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 41 #ifndef QDIAL_H 42 #define QDIAL_H 43 44 #include <QtWidgets/qtwidgetsglobal.h> 45 46 #include <QtWidgets/qabstractslider.h> 47 48 QT_REQUIRE_CONFIG(dial); 49 50 QT_BEGIN_NAMESPACE 51 52 class QDialPrivate; 53 class QStyleOptionSlider; 54 55 class Q_WIDGETS_EXPORT QDial: public QAbstractSlider 56 { 57 Q_OBJECT 58 59 Q_PROPERTY(bool wrapping READ wrapping WRITE setWrapping) 60 Q_PROPERTY(int notchSize READ notchSize) 61 Q_PROPERTY(qreal notchTarget READ notchTarget WRITE setNotchTarget) 62 Q_PROPERTY(bool notchesVisible READ notchesVisible WRITE setNotchesVisible) 63 public: 64 explicit QDial(QWidget *parent = nullptr); 65 66 ~QDial(); 67 68 bool wrapping() const; 69 70 int notchSize() const; 71 72 void setNotchTarget(double target); 73 qreal notchTarget() const; 74 bool notchesVisible() const; 75 76 QSize sizeHint() const override; 77 QSize minimumSizeHint() const override; 78 79 public Q_SLOTS: 80 void setNotchesVisible(bool visible); 81 void setWrapping(bool on); 82 83 protected: 84 bool event(QEvent *e) override; 85 void resizeEvent(QResizeEvent *re) override; 86 void paintEvent(QPaintEvent *pe) override; 87 88 void mousePressEvent(QMouseEvent *me) override; 89 void mouseReleaseEvent(QMouseEvent *me) override; 90 void mouseMoveEvent(QMouseEvent *me) override; 91 92 void sliderChange(SliderChange change) override; 93 void initStyleOption(QStyleOptionSlider *option) const; 94 95 96 private: 97 Q_DECLARE_PRIVATE(QDial) 98 Q_DISABLE_COPY(QDial) 99 }; 100 101 QT_END_NAMESPACE 102 103 #endif // QDIAL_H 104