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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