Qwt User's Guide 6.3.0

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qwt_slider.h
1/******************************************************************************
2 * Qwt Widget Library
3 * Copyright (C) 1997 Josef Wilgen
4 * Copyright (C) 2002 Uwe Rathmann
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the Qwt License, Version 1.0
8 *****************************************************************************/
9
10#ifndef QWT_SLIDER_H
11#define QWT_SLIDER_H
12
13#include "qwt_global.h"
14#include "qwt_abstract_slider.h"
15
16 class QwtScaleDraw;
17
30 class QWT_EXPORT QwtSlider : public QwtAbstractSlider
31{
32 Q_OBJECT
33
34 Q_ENUMS( ScalePosition BackgroundStyle )
35
36 Q_PROPERTY( Qt::Orientation orientation
37 READ orientation WRITE setOrientation )
38 Q_PROPERTY( ScalePosition scalePosition READ scalePosition
39 WRITE setScalePosition )
40
41 Q_PROPERTY( bool trough READ hasTrough WRITE setTrough )
42 Q_PROPERTY( bool groove READ hasGroove WRITE setGroove )
43
44 Q_PROPERTY( QSize handleSize READ handleSize WRITE setHandleSize )
45 Q_PROPERTY( int borderWidth READ borderWidth WRITE setBorderWidth )
46 Q_PROPERTY( int spacing READ spacing WRITE setSpacing )
47
48 public:
49
54 enum ScalePosition
55 {
57 NoScale,
58
60 LeadingScale,
61
63 TrailingScale
64 };
65
66 explicit QwtSlider( QWidget* parent = NULL );
67 explicit QwtSlider( Qt::Orientation, QWidget* parent = NULL );
68
69 virtual ~QwtSlider();
70
71 void setOrientation( Qt::Orientation );
72 Qt::Orientation orientation() const;
73
74 void setScalePosition( ScalePosition );
75 ScalePosition scalePosition() const;
76
77 void setTrough( bool );
78 bool hasTrough() const;
79
80 void setGroove( bool );
81 bool hasGroove() const;
82
83 void setHandleSize( const QSize& );
84 QSize handleSize() const;
85
86 void setBorderWidth( int );
87 int borderWidth() const;
88
89 void setSpacing( int );
90 int spacing() const;
91
92 virtual QSize sizeHint() const QWT_OVERRIDE;
93 virtual QSize minimumSizeHint() const QWT_OVERRIDE;
94
95 void setScaleDraw( QwtScaleDraw* );
96 const QwtScaleDraw* scaleDraw() const;
97
98 void setUpdateInterval( int );
99 int updateInterval() const;
100
101 protected:
102 virtual double scrolledTo( const QPoint& ) const QWT_OVERRIDE;
103 virtual bool isScrollPosition( const QPoint& ) const QWT_OVERRIDE;
104
105 virtual void drawSlider ( QPainter*, const QRect& ) const;
106 virtual void drawHandle( QPainter*, const QRect&, int pos ) const;
107
108 virtual void mousePressEvent( QMouseEvent* ) QWT_OVERRIDE;
109 virtual void mouseReleaseEvent( QMouseEvent* ) QWT_OVERRIDE;
110 virtual void resizeEvent( QResizeEvent* ) QWT_OVERRIDE;
111 virtual void paintEvent ( QPaintEvent* ) QWT_OVERRIDE;
112 virtual void changeEvent( QEvent* ) QWT_OVERRIDE;
113 virtual void timerEvent( QTimerEvent* ) QWT_OVERRIDE;
114
115 virtual bool event( QEvent* ) QWT_OVERRIDE;
116
117 virtual void scaleChange() QWT_OVERRIDE;
118
119 QRect sliderRect() const;
120 QRect handleRect() const;
121
122 private:
123 QwtScaleDraw* scaleDraw();
124
125 void layoutSlider( bool );
126 void initSlider( Qt::Orientation );
127
128 class PrivateData;
129 PrivateData* m_data;
130};
131
132#endif
QwtAbstractSlider
An abstract base class for slider widgets with a scale.
Definition qwt_abstract_slider.h:33
QwtScaleDraw
A class for drawing scales.
Definition qwt_scale_draw.h:36
QwtSlider
The Slider Widget.
Definition qwt_slider.h:31
QwtSlider::ScalePosition
ScalePosition
Definition qwt_slider.h:55
QwtSlider::LeadingScale
@ LeadingScale
The scale is right of a vertical or below a horizontal slider.
Definition qwt_slider.h:60
QwtSlider::NoScale
@ NoScale
The slider has no scale.
Definition qwt_slider.h:57