| 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_LEGEND_H
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| 11 | #define QWT_LEGEND_H
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| 12 |
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| 13 | #include "qwt_global.h"
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| 14 | #include <qframe.h>
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| 15 | #include <qlist.h>
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| 16 |
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| 17 | class QScrollBar;
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| 18 | class QwtLegendItemManager;
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| 19 |
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| 20 | /*!
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| 21 | \brief The legend widget
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| 22 |
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| 23 | The QwtLegend widget is a tabular arrangement of legend items. Legend
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| 24 | items might be any type of widget, but in general they will be
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| 25 | a QwtLegendItem.
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| 26 |
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| 27 | \sa QwtLegendItem, QwtLegendItemManager QwtPlot
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| 28 | */
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| 29 |
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| 30 | class QWT_EXPORT QwtLegend : public QFrame
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| 31 | {
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| 32 | Q_OBJECT
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| 33 |
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| 34 | public:
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| 35 | /*!
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| 36 | \brief Interaction mode for the legend items
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| 37 |
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| 38 | The default is QwtLegend::ReadOnlyItem.
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| 39 |
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| 40 | \sa setItemMode(), itemMode(), QwtLegendItem::IdentifierMode
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| 41 | QwtLegendItem::clicked(), QwtLegendItem::checked(),
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| 42 | QwtPlot::legendClicked(), QwtPlot::legendChecked()
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| 43 | */
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| 44 |
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| 45 | enum LegendItemMode
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| 46 | {
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| 47 | //! The legend item is not interactive, like a label
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| 48 | ReadOnlyItem,
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| 49 |
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| 50 | //! The legend item is clickable, like a push button
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| 51 | ClickableItem,
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| 52 |
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| 53 | //! The legend item is checkable, like a checkable button
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| 54 | CheckableItem
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| 55 | };
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| 56 |
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| 57 | explicit QwtLegend( QWidget *parent = NULL );
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| 58 | virtual ~QwtLegend();
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| 59 |
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| 60 | void setItemMode( LegendItemMode );
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| 61 | LegendItemMode itemMode() const;
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| 62 |
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| 63 | QWidget *contentsWidget();
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| 64 | const QWidget *contentsWidget() const;
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| 65 |
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| 66 | void insert( const QwtLegendItemManager *, QWidget * );
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| 67 | void remove( const QwtLegendItemManager * );
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| 68 |
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| 69 | QWidget *find( const QwtLegendItemManager * ) const;
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| 70 | QwtLegendItemManager *find( const QWidget * ) const;
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| 71 |
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| 72 | virtual QList<QWidget *> legendItems() const;
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| 73 |
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| 74 | void clear();
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| 75 |
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| 76 | bool isEmpty() const;
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| 77 | uint itemCount() const;
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| 78 |
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| 79 | virtual bool eventFilter( QObject *, QEvent * );
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| 80 |
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| 81 | virtual QSize sizeHint() const;
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| 82 | virtual int heightForWidth( int w ) const;
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| 83 |
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| 84 | QScrollBar *horizontalScrollBar() const;
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| 85 | QScrollBar *verticalScrollBar() const;
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| 86 |
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| 87 | protected:
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| 88 | virtual void layoutContents();
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| 89 |
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| 90 | private:
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| 91 | class PrivateData;
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| 92 | PrivateData *d_data;
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| 93 | };
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| 94 |
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| 95 | #endif
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