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 QABSTRACTSLIDER_H 41 #define QABSTRACTSLIDER_H 42 43 #include <QtWidgets/qtwidgetsglobal.h> 44 #include <QtWidgets/qwidget.h> 45 46 QT_REQUIRE_CONFIG(abstractslider); 47 48 QT_BEGIN_NAMESPACE 49 50 51 class QAbstractSliderPrivate; 52 53 class Q_WIDGETS_EXPORT QAbstractSlider : public QWidget 54 { 55 Q_OBJECT 56 57 Q_PROPERTY(int minimum READ minimum WRITE setMinimum) 58 Q_PROPERTY(int maximum READ maximum WRITE setMaximum) 59 Q_PROPERTY(int singleStep READ singleStep WRITE setSingleStep) 60 Q_PROPERTY(int pageStep READ pageStep WRITE setPageStep) 61 Q_PROPERTY(int value READ value WRITE setValue NOTIFY valueChanged USER true) 62 Q_PROPERTY(int sliderPosition READ sliderPosition WRITE setSliderPosition NOTIFY sliderMoved) 63 Q_PROPERTY(bool tracking READ hasTracking WRITE setTracking) 64 Q_PROPERTY(Qt::Orientation orientation READ orientation WRITE setOrientation) 65 Q_PROPERTY(bool invertedAppearance READ invertedAppearance WRITE setInvertedAppearance) 66 Q_PROPERTY(bool invertedControls READ invertedControls WRITE setInvertedControls) 67 Q_PROPERTY(bool sliderDown READ isSliderDown WRITE setSliderDown DESIGNABLE false) 68 69 public: 70 explicit QAbstractSlider(QWidget *parent = nullptr); 71 ~QAbstractSlider(); 72 73 Qt::Orientation orientation() const; 74 75 void setMinimum(int); 76 int minimum() const; 77 78 void setMaximum(int); 79 int maximum() const; 80 81 void setSingleStep(int); 82 int singleStep() const; 83 84 void setPageStep(int); 85 int pageStep() const; 86 87 void setTracking(bool enable); 88 bool hasTracking() const; 89 90 void setSliderDown(bool); 91 bool isSliderDown() const; 92 93 void setSliderPosition(int); 94 int sliderPosition() const; 95 96 void setInvertedAppearance(bool); 97 bool invertedAppearance() const; 98 99 void setInvertedControls(bool); 100 bool invertedControls() const; 101 102 enum SliderAction { 103 SliderNoAction, 104 SliderSingleStepAdd, 105 SliderSingleStepSub, 106 SliderPageStepAdd, 107 SliderPageStepSub, 108 SliderToMinimum, 109 SliderToMaximum, 110 SliderMove 111 }; 112 113 int value() const; 114 115 void triggerAction(SliderAction action); 116 117 public Q_SLOTS: 118 void setValue(int); 119 void setOrientation(Qt::Orientation); 120 void setRange(int min, int max); 121 122 Q_SIGNALS: 123 void valueChanged(int value); 124 125 void sliderPressed(); 126 void sliderMoved(int position); 127 void sliderReleased(); 128 129 void rangeChanged(int min, int max); 130 131 void actionTriggered(int action); 132 133 protected: 134 bool event(QEvent *e) override; 135 136 void setRepeatAction(SliderAction action, int thresholdTime = 500, int repeatTime = 50); 137 SliderAction repeatAction() const; 138 139 enum SliderChange { 140 SliderRangeChange, 141 SliderOrientationChange, 142 SliderStepsChange, 143 SliderValueChange 144 }; 145 virtual void sliderChange(SliderChange change); 146 147 void keyPressEvent(QKeyEvent *ev) override; 148 void timerEvent(QTimerEvent *) override; 149 #if QT_CONFIG(wheelevent) 150 void wheelEvent(QWheelEvent *e) override; 151 #endif 152 void changeEvent(QEvent *e) override; 153 154 155 protected: 156 QAbstractSlider(QAbstractSliderPrivate &dd, QWidget *parent = nullptr); 157 158 private: 159 Q_DISABLE_COPY(QAbstractSlider) 160 Q_DECLARE_PRIVATE(QAbstractSlider) 161 }; 162 163 QT_END_NAMESPACE 164 165 #endif // QABSTRACTSLIDER_H 166