[89] | 1 | /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
|
---|
| 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 | // vim: expandtab
|
---|
| 11 |
|
---|
| 12 | #ifndef QWT_LEGEND_H
|
---|
| 13 | #define QWT_LEGEND_H
|
---|
| 14 |
|
---|
| 15 | #include <qframe.h>
|
---|
| 16 | #include "qwt_global.h"
|
---|
| 17 | #if QT_VERSION < 0x040000
|
---|
| 18 | #include <qvaluelist.h>
|
---|
| 19 | #else
|
---|
| 20 | #include <qlist.h>
|
---|
| 21 | #endif
|
---|
| 22 |
|
---|
| 23 | class QScrollBar;
|
---|
| 24 | class QwtLegendItemManager;
|
---|
| 25 |
|
---|
| 26 | /*!
|
---|
| 27 | \brief The legend widget
|
---|
| 28 |
|
---|
| 29 | The QwtLegend widget is a tabular arrangement of legend items. Legend
|
---|
| 30 | items might be any type of widget, but in general they will be
|
---|
| 31 | a QwtLegendItem.
|
---|
| 32 |
|
---|
| 33 | \sa QwtLegendItem, QwtLegendItemManager QwtPlot
|
---|
| 34 | */
|
---|
| 35 |
|
---|
| 36 | class QWT_EXPORT QwtLegend : public QFrame
|
---|
| 37 | {
|
---|
| 38 | Q_OBJECT
|
---|
| 39 |
|
---|
| 40 | public:
|
---|
| 41 | /*!
|
---|
| 42 | \brief Display policy
|
---|
| 43 |
|
---|
| 44 | - NoIdentifier\n
|
---|
| 45 | The client code is responsible how to display of each legend item.
|
---|
| 46 | The Qwt library will not interfere.
|
---|
| 47 |
|
---|
| 48 | - FixedIdentifier\n
|
---|
| 49 | All legend items are displayed with the QwtLegendItem::IdentifierMode
|
---|
| 50 | to be passed in 'mode'.
|
---|
| 51 |
|
---|
| 52 | - AutoIdentifier\n
|
---|
| 53 | Each legend item is displayed with a mode that is a bitwise or of
|
---|
| 54 | - QwtLegendItem::ShowLine (if its curve is drawn with a line) and
|
---|
| 55 | - QwtLegendItem::ShowSymbol (if its curve is drawn with symbols) and
|
---|
| 56 | - QwtLegendItem::ShowText (if the has a title).
|
---|
| 57 |
|
---|
| 58 | Default is AutoIdentifier.
|
---|
| 59 | \sa setDisplayPolicy(), displayPolicy(), QwtLegendItem::IdentifierMode
|
---|
| 60 | */
|
---|
| 61 |
|
---|
| 62 | enum LegendDisplayPolicy
|
---|
| 63 | {
|
---|
| 64 | NoIdentifier = 0,
|
---|
| 65 | FixedIdentifier = 1,
|
---|
| 66 | AutoIdentifier = 2
|
---|
| 67 | };
|
---|
| 68 |
|
---|
| 69 | /*!
|
---|
| 70 | \brief Interaction mode for the legend items
|
---|
| 71 |
|
---|
| 72 | - ReadOnlyItem\n
|
---|
| 73 | The legend item is not interactive, like a label
|
---|
| 74 |
|
---|
| 75 | - ClickableItem\n
|
---|
| 76 | The legend item is clickable, like a push button
|
---|
| 77 |
|
---|
| 78 | - CheckableItem\n
|
---|
| 79 | The legend item is checkable, like a checkable button
|
---|
| 80 |
|
---|
| 81 | Default is ReadOnlyItem.
|
---|
| 82 | \sa setItemMode(), itemMode(), QwtLegendItem::IdentifierMode
|
---|
| 83 | QwtLegendItem::clicked(), QwtLegendItem::checked(),
|
---|
| 84 | QwtPlot::legendClicked(), QwtPlot::legendChecked()
|
---|
| 85 | */
|
---|
| 86 |
|
---|
| 87 | enum LegendItemMode
|
---|
| 88 | {
|
---|
| 89 | ReadOnlyItem,
|
---|
| 90 | ClickableItem,
|
---|
| 91 | CheckableItem
|
---|
| 92 | };
|
---|
| 93 |
|
---|
| 94 | explicit QwtLegend(QWidget *parent = NULL);
|
---|
| 95 | virtual ~QwtLegend();
|
---|
| 96 |
|
---|
| 97 | void setDisplayPolicy(LegendDisplayPolicy policy, int mode);
|
---|
| 98 | LegendDisplayPolicy displayPolicy() const;
|
---|
| 99 |
|
---|
| 100 | void setItemMode(LegendItemMode);
|
---|
| 101 | LegendItemMode itemMode() const;
|
---|
| 102 |
|
---|
| 103 | int identifierMode() const;
|
---|
| 104 |
|
---|
| 105 | QWidget *contentsWidget();
|
---|
| 106 | const QWidget *contentsWidget() const;
|
---|
| 107 |
|
---|
| 108 | void insert(const QwtLegendItemManager *, QWidget *);
|
---|
| 109 | void remove(const QwtLegendItemManager *);
|
---|
| 110 |
|
---|
| 111 | QWidget *find(const QwtLegendItemManager *) const;
|
---|
| 112 | QwtLegendItemManager *find(const QWidget *) const;
|
---|
| 113 |
|
---|
| 114 | #if QT_VERSION < 0x040000
|
---|
| 115 | virtual QValueList<QWidget *> legendItems() const;
|
---|
| 116 | #else
|
---|
| 117 | virtual QList<QWidget *> legendItems() const;
|
---|
| 118 | #endif
|
---|
| 119 |
|
---|
| 120 | void clear();
|
---|
| 121 |
|
---|
| 122 | bool isEmpty() const;
|
---|
| 123 | uint itemCount() const;
|
---|
| 124 |
|
---|
| 125 | virtual bool eventFilter(QObject *, QEvent *);
|
---|
| 126 |
|
---|
| 127 | virtual QSize sizeHint() const;
|
---|
| 128 | virtual int heightForWidth(int w) const;
|
---|
| 129 |
|
---|
| 130 | QScrollBar *horizontalScrollBar() const;
|
---|
| 131 | QScrollBar *verticalScrollBar() const;
|
---|
| 132 |
|
---|
| 133 | protected:
|
---|
| 134 | virtual void resizeEvent(QResizeEvent *);
|
---|
| 135 | virtual void layoutContents();
|
---|
| 136 |
|
---|
| 137 | private:
|
---|
| 138 | class PrivateData;
|
---|
| 139 | PrivateData *d_data;
|
---|
| 140 | };
|
---|
| 141 |
|
---|
| 142 | #endif // QWT_LEGEND_H
|
---|