[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 | #ifndef QWT_WHEEL_H
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| 11 | #define QWT_WHEEL_H
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| 12 |
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| 13 | #include "qwt_global.h"
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| 14 | #include "qwt_abstract_slider.h"
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| 15 |
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| 16 | /*!
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| 17 | \brief The Wheel Widget
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| 18 |
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| 19 | The wheel widget can be used to change values over a very large range
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| 20 | in very small steps. Using the setMass member, it can be configured
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| 21 | as a flywheel.
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| 22 |
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| 23 | \sa The radio example.
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| 24 | */
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| 25 | class QWT_EXPORT QwtWheel : public QwtAbstractSlider
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| 26 | {
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| 27 | Q_OBJECT
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| 28 | Q_PROPERTY( double totalAngle READ totalAngle WRITE setTotalAngle )
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| 29 | Q_PROPERTY( double viewAngle READ viewAngle WRITE setViewAngle )
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| 30 | Q_PROPERTY( int tickCnt READ tickCnt WRITE setTickCnt )
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| 31 | Q_PROPERTY( int internalBorder READ internalBorder WRITE setInternalBorder )
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| 32 | Q_PROPERTY( double mass READ mass WRITE setMass )
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| 33 |
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| 34 | public:
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| 35 | explicit QwtWheel(QWidget *parent = NULL);
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| 36 | #if QT_VERSION < 0x040000
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| 37 | explicit QwtWheel(QWidget *parent, const char *name);
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| 38 | #endif
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| 39 | virtual ~QwtWheel();
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| 40 |
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| 41 | virtual void setOrientation(Qt::Orientation);
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| 42 |
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| 43 | double totalAngle() const;
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| 44 | double viewAngle() const;
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| 45 | int tickCnt() const;
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| 46 | int internalBorder() const;
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| 47 |
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| 48 | double mass() const;
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| 49 |
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| 50 | void setTotalAngle (double angle);
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| 51 | void setTickCnt(int cnt);
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| 52 | void setViewAngle(double angle);
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| 53 | void setInternalBorder(int width);
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| 54 | void setMass(double val);
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| 55 | void setWheelWidth( int w );
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| 56 |
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| 57 | virtual QSize sizeHint() const;
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| 58 | virtual QSize minimumSizeHint() const;
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| 59 |
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| 60 | protected:
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| 61 | virtual void resizeEvent(QResizeEvent *e);
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| 62 | virtual void paintEvent(QPaintEvent *e);
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| 63 |
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| 64 | void layoutWheel( bool update = true );
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| 65 | void draw(QPainter *, const QRect &);
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| 66 | void drawWheel(QPainter *, const QRect &);
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| 67 | void drawWheelBackground(QPainter *, const QRect &);
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| 68 | void setColorArray();
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| 69 |
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| 70 | virtual void valueChange();
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| 71 | virtual void paletteChange( const QPalette &);
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| 72 |
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| 73 | virtual double getValue(const QPoint &);
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| 74 | virtual void getScrollMode(const QPoint &,
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| 75 | int &scrollMode, int &direction);
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| 76 |
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| 77 | private:
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| 78 | void initWheel();
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| 79 |
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| 80 | class PrivateData;
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| 81 | PrivateData *d_data;
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| 82 | };
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| 83 |
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| 84 | #endif
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