118 lines
3.4 KiB
C
118 lines
3.4 KiB
C
|
/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
|
||
|
|
* Qwt Widget Library
|
||
|
|
* Copyright (C) 1997 Josef Wilgen
|
||
|
|
* Copyright (C) 2002 Uwe Rathmann
|
||
|
|
*
|
||
|
|
* This library is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the Qwt License, Version 1.0
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
#ifndef QWT_LEGEND_H
|
||
|
|
#define QWT_LEGEND_H
|
||
|
|
|
||
|
|
#include "qwt_global.h"
|
||
|
|
#include "qwt_abstract_legend.h"
|
||
|
|
#include <qvariant.h>
|
||
|
|
|
||
|
|
class QScrollBar;
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\brief The legend widget
|
||
|
|
|
||
|
|
The QwtLegend widget is a tabular arrangement of legend items. Legend
|
||
|
|
items might be any type of widget, but in general they will be
|
||
|
|
a QwtLegendLabel.
|
||
|
|
|
||
|
|
\sa QwtLegendLabel, QwtPlotItem, QwtPlot
|
||
|
|
*/
|
||
|
|
|
||
|
|
class QWT_EXPORT QwtLegend : public QwtAbstractLegend
|
||
|
|
{
|
||
|
|
Q_OBJECT
|
||
|
|
|
||
|
|
public:
|
||
|
|
explicit QwtLegend( QWidget *parent = NULL );
|
||
|
|
virtual ~QwtLegend();
|
||
|
|
|
||
|
|
void setMaxColumns( uint numColums );
|
||
|
|
uint maxColumns() const;
|
||
|
|
|
||
|
|
void setDefaultItemMode( QwtLegendData::Mode );
|
||
|
|
QwtLegendData::Mode defaultItemMode() const;
|
||
|
|
|
||
|
|
QWidget *contentsWidget();
|
||
|
|
const QWidget *contentsWidget() const;
|
||
|
|
|
||
|
|
QWidget *legendWidget( const QVariant & ) const;
|
||
|
|
QList<QWidget *> legendWidgets( const QVariant & ) const;
|
||
|
|
|
||
|
|
QVariant itemInfo( const QWidget * ) const;
|
||
|
|
|
||
|
|
virtual bool eventFilter( QObject *, QEvent * );
|
||
|
|
|
||
|
|
virtual QSize sizeHint() const;
|
||
|
|
virtual int heightForWidth( int w ) const;
|
||
|
|
|
||
|
|
QScrollBar *horizontalScrollBar() const;
|
||
|
|
QScrollBar *verticalScrollBar() const;
|
||
|
|
|
||
|
|
virtual void renderLegend( QPainter *,
|
||
|
|
const QRectF &, bool fillBackground ) const;
|
||
|
|
|
||
|
|
virtual void renderItem( QPainter *,
|
||
|
|
const QWidget *, const QRectF &, bool fillBackground ) const;
|
||
|
|
|
||
|
|
virtual bool isEmpty() const;
|
||
|
|
virtual int scrollExtent( Qt::Orientation ) const;
|
||
|
|
|
||
|
|
Q_SIGNALS:
|
||
|
|
/*!
|
||
|
|
A signal which is emitted when the user has clicked on
|
||
|
|
a legend label, which is in QwtLegendData::Clickable mode.
|
||
|
|
|
||
|
|
\param itemInfo Info for the item item of the
|
||
|
|
selected legend item
|
||
|
|
\param index Index of the legend label in the list of widgets
|
||
|
|
that are associated with the plot item
|
||
|
|
|
||
|
|
\note clicks are disabled as default
|
||
|
|
\sa setDefaultItemMode(), defaultItemMode(), QwtPlot::itemToInfo()
|
||
|
|
*/
|
||
|
|
void clicked( const QVariant &itemInfo, int index );
|
||
|
|
|
||
|
|
/*!
|
||
|
|
A signal which is emitted when the user has clicked on
|
||
|
|
a legend label, which is in QwtLegendData::Checkable mode
|
||
|
|
|
||
|
|
\param itemInfo Info for the item of the
|
||
|
|
selected legend label
|
||
|
|
\param index Index of the legend label in the list of widgets
|
||
|
|
that are associated with the plot item
|
||
|
|
\param on True when the legend label is checked
|
||
|
|
|
||
|
|
\note clicks are disabled as default
|
||
|
|
\sa setDefaultItemMode(), defaultItemMode(), QwtPlot::itemToInfo()
|
||
|
|
*/
|
||
|
|
void checked( const QVariant &itemInfo, bool on, int index );
|
||
|
|
|
||
|
|
public Q_SLOTS:
|
||
|
|
virtual void updateLegend( const QVariant &,
|
||
|
|
const QList<QwtLegendData> & );
|
||
|
|
|
||
|
|
protected Q_SLOTS:
|
||
|
|
void itemClicked();
|
||
|
|
void itemChecked( bool );
|
||
|
|
|
||
|
|
protected:
|
||
|
|
virtual QWidget *createWidget( const QwtLegendData & ) const;
|
||
|
|
virtual void updateWidget( QWidget *widget, const QwtLegendData &data );
|
||
|
|
|
||
|
|
private:
|
||
|
|
void updateTabOrder();
|
||
|
|
|
||
|
|
class PrivateData;
|
||
|
|
PrivateData *d_data;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|