[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_COMPASS_ROSE_H
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| 11 | #define QWT_COMPASS_ROSE_H 1
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| 12 |
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| 13 | #include <qpalette.h>
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| 14 | #include "qwt_global.h"
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| 15 |
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| 16 | class QPainter;
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| 17 |
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| 18 | /*!
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| 19 | \brief Abstract base class for a compass rose
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| 20 | */
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| 21 | class QWT_EXPORT QwtCompassRose
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| 22 | {
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| 23 | public:
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| 24 | virtual ~QwtCompassRose() {};
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| 25 |
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| 26 | //! Assign a palette
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| 27 | virtual void setPalette(const QPalette &p) { d_palette = p; }
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| 28 |
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| 29 | //! \return Current palette
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| 30 | const QPalette &palette() const { return d_palette; }
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| 31 |
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| 32 | /*!
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| 33 | Draw the rose
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| 34 |
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| 35 | \param painter Painter
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| 36 | \param center Center point
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| 37 | \param radius Radius of the rose
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| 38 | \param north Position
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| 39 | \param colorGroup Color group
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| 40 | */
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| 41 | virtual void draw(QPainter *painter, const QPoint ¢er,
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| 42 | int radius, double north,
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| 43 | QPalette::ColorGroup colorGroup = QPalette::Active) const = 0;
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| 44 |
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| 45 | private:
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| 46 | QPalette d_palette;
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| 47 | };
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| 48 |
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| 49 | /*!
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| 50 | \brief A simple rose for QwtCompass
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| 51 | */
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| 52 | class QWT_EXPORT QwtSimpleCompassRose: public QwtCompassRose
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| 53 | {
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| 54 | public:
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| 55 | QwtSimpleCompassRose(int numThorns = 8, int numThornLevels = -1);
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| 56 |
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| 57 | void setWidth(double w);
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| 58 |
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| 59 | //! \sa setWidth()
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| 60 | double width() const { return d_width; }
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| 61 |
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| 62 | void setNumThorns(int count);
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| 63 | int numThorns() const;
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| 64 |
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| 65 | void setNumThornLevels(int count);
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| 66 | int numThornLevels() const;
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| 67 |
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| 68 | void setShrinkFactor(double factor) { d_shrinkFactor = factor; }
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| 69 | double shrinkFactor() const { return d_shrinkFactor; }
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| 70 |
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| 71 | virtual void draw(QPainter *, const QPoint ¢er, int radius,
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| 72 | double north, QPalette::ColorGroup = QPalette::Active) const;
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| 73 |
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| 74 | static void drawRose(QPainter *,
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| 75 | #if QT_VERSION < 0x040000
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| 76 | const QColorGroup &,
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| 77 | #else
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| 78 | const QPalette &,
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| 79 | #endif
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| 80 | const QPoint ¢er, int radius, double origin, double width,
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| 81 | int numThorns, int numThornLevels, double shrinkFactor);
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| 82 |
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| 83 | private:
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| 84 | double d_width;
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| 85 | int d_numThorns;
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| 86 | int d_numThornLevels;
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| 87 | double d_shrinkFactor;
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| 88 | };
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| 89 |
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| 90 | #endif // QWT_COMPASS_ROSE_H
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