[89] | 1 | /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
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| 2 | * Qwt Widget Library
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| 3 | * Copyright (C) 1997 Josef Wilgen
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| 4 | * Copyright (C) 2002 Uwe Rathmann
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| 5 | *
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| 6 | * This library is free software; you can redistribute it and/or
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| 7 | * modify it under the terms of the Qwt License, Version 1.0
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| 8 | *****************************************************************************/
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| 9 |
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| 10 | // vim: expandtab
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| 11 |
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| 12 | #ifndef QWT_SLIDER_H
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| 13 | #define QWT_SLIDER_H
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| 14 |
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| 15 | #include "qwt_global.h"
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| 16 | #include "qwt_abstract_scale.h"
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| 17 | #include "qwt_abstract_slider.h"
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| 18 |
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| 19 | class QwtScaleDraw;
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| 20 |
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| 21 | /*!
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| 22 | \brief The Slider Widget
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| 23 |
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| 24 | QwtSlider is a slider widget which operates on an interval
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| 25 | of type double. QwtSlider supports different layouts as
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| 26 | well as a scale.
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| 27 |
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| 28 | \image html sliders.png
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| 29 |
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| 30 | \sa QwtAbstractSlider and QwtAbstractScale for the descriptions
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| 31 | of the inherited members.
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| 32 | */
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| 33 |
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| 34 | class QWT_EXPORT QwtSlider : public QwtAbstractSlider, public QwtAbstractScale
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| 35 | {
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| 36 | Q_OBJECT
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| 37 | Q_ENUMS( ScalePos )
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| 38 | Q_ENUMS( BGSTYLE )
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| 39 | Q_PROPERTY( ScalePos scalePosition READ scalePosition
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| 40 | WRITE setScalePosition )
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| 41 | Q_PROPERTY( BGSTYLE bgStyle READ bgStyle WRITE setBgStyle )
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| 42 | Q_PROPERTY( int thumbLength READ thumbLength WRITE setThumbLength )
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| 43 | Q_PROPERTY( int thumbWidth READ thumbWidth WRITE setThumbWidth )
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| 44 | Q_PROPERTY( int borderWidth READ borderWidth WRITE setBorderWidth )
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| 45 |
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| 46 | public:
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| 47 |
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| 48 | /*!
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| 49 | Scale position. QwtSlider tries to enforce valid combinations of its
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| 50 | orientation and scale position:
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| 51 | - Qt::Horizonal combines with NoScale, TopScale and BottomScale
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| 52 | - Qt::Vertical combines with NoScale, LeftScale and RightScale
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| 53 |
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| 54 | \sa QwtSlider()
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| 55 | */
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| 56 | enum ScalePos
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| 57 | {
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| 58 | NoScale,
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| 59 |
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| 60 | LeftScale,
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| 61 | RightScale,
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| 62 | TopScale,
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| 63 | BottomScale
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| 64 | };
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| 65 |
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| 66 | /*!
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| 67 | Background style.
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| 68 | \sa QwtSlider()
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| 69 | */
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| 70 | enum BGSTYLE
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| 71 | {
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| 72 | BgTrough = 0x1,
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| 73 | BgSlot = 0x2,
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| 74 | BgBoth = BgTrough | BgSlot
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| 75 | };
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| 76 |
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| 77 | explicit QwtSlider(QWidget *parent,
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| 78 | Qt::Orientation = Qt::Horizontal,
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| 79 | ScalePos = NoScale, BGSTYLE bgStyle = BgTrough);
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| 80 | #if QT_VERSION < 0x040000
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| 81 | explicit QwtSlider(QWidget *parent, const char *name);
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| 82 | #endif
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| 83 |
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| 84 | virtual ~QwtSlider();
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| 85 |
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| 86 | virtual void setOrientation(Qt::Orientation);
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| 87 |
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| 88 | void setBgStyle(BGSTYLE);
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| 89 | BGSTYLE bgStyle() const;
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| 90 |
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| 91 | void setScalePosition(ScalePos s);
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| 92 | ScalePos scalePosition() const;
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| 93 |
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| 94 | int thumbLength() const;
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| 95 | int thumbWidth() const;
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| 96 | int borderWidth() const;
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| 97 |
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| 98 | void setThumbLength(int l);
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| 99 | void setThumbWidth(int w);
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| 100 | void setBorderWidth(int bw);
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| 101 | void setMargins(int x, int y);
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| 102 |
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| 103 | virtual QSize sizeHint() const;
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| 104 | virtual QSize minimumSizeHint() const;
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| 105 |
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| 106 | void setScaleDraw(QwtScaleDraw *);
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| 107 | const QwtScaleDraw *scaleDraw() const;
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| 108 |
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| 109 | protected:
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| 110 | virtual double getValue(const QPoint &p);
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| 111 | virtual void getScrollMode(const QPoint &p,
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| 112 | int &scrollMode, int &direction);
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| 113 |
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| 114 | void draw(QPainter *p, const QRect& update_rect);
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| 115 | virtual void drawSlider (QPainter *p, const QRect &r);
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| 116 | virtual void drawThumb(QPainter *p, const QRect &, int pos);
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| 117 |
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| 118 | virtual void resizeEvent(QResizeEvent *e);
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| 119 | virtual void paintEvent (QPaintEvent *e);
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| 120 |
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| 121 | virtual void valueChange();
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| 122 | virtual void rangeChange();
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| 123 | virtual void scaleChange();
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| 124 | virtual void fontChange(const QFont &oldFont);
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| 125 |
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| 126 | void layoutSlider( bool update = true );
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| 127 | int xyPosition(double v) const;
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| 128 |
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| 129 | QwtScaleDraw *scaleDraw();
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| 130 |
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| 131 | private:
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| 132 | void initSlider(Qt::Orientation, ScalePos scalePos, BGSTYLE bgStyle);
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| 133 |
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| 134 | class PrivateData;
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| 135 | PrivateData *d_data;
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| 136 | };
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| 137 |
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| 138 | #endif
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