A widget representing an item on a QwtLegend 更多...

#include <qwt_legend_label.h>

类 QwtLegendLabel 继承关系图:

类
class	PrivateData

Public 槽
void	setChecked (bool on)
	Check/Uncheck the item

Public 槽继承自 QwtTextLabel
void	setText (const QString &, QwtText::TextFormat textFormat=QwtText::AutoText)
	Change the label's text, keeping all other QwtText attributes

void	clear ()
	Clear the text and all QwtText attributes

信号
void	clicked ()
	Signal emitted when the legend item has been clicked

void	pressed ()
	Signal emitted when the legend item has been pressed

void	released ()
	Signal emitted when the legend item has been released

void	checked (bool)
	Signal emitted when the legend item has been toggled

Public 成员函数
	QwtLegendLabel (QWidget *parent=nullptr)
	Constructor for QwtLegendLabel

void	setData (const QwtLegendData &)
	Set the attributes of the legend label

const QwtLegendData &	data () const
	Return the attributes of the label

void	setItemMode (QwtLegendData::Mode)
	Set the item mode

QwtLegendData::Mode	itemMode () const
	Return the item mode

void	setSpacing (int spacing)
	Change the spacing between icon and text

int	spacing () const
	Return the spacing between icon and text

virtual void	setText (const QwtText &) override
	Set the text to the legend item

void	setIcon (const QPixmap &)
	Assign the icon

QPixmap	icon () const
	Return the pixmap representing a plot item

virtual QSize	sizeHint () const override
	Return a size hint

bool	isChecked () const
	Return true if the item is checked

Public 成员函数继承自 QwtTextLabel
	QwtTextLabel (QWidget *parent=nullptr)
	Constructs an empty label

	QwtTextLabel (const QwtText &, QWidget *parent=nullptr)
	Constructs a label that displays the text

	~QwtTextLabel () override
	Destructor

void	setPlainText (const QString &)
	Interface for the designer plugin - does the same as setText()

QString	plainText () const
	Interface for the designer plugin

const QwtText &	text () const
	Return the text

int	indent () const
	Return label's text indent in pixels

void	setIndent (int)
	Set label's text indent in pixels

int	margin () const
	Return label's margin in pixels

void	setMargin (int)
	Set label's margin in pixels

virtual QSize	minimumSizeHint () const override
	Return a minimum size hint

virtual int	heightForWidth (int) const override
	Return the preferred height for a given width

QRect	textRect () const
	Calculate geometry for the text in widget coordinates

virtual void	drawText (QPainter *, const QRectF &)
	Redraw the text

Protected 成员函数
void	setDown (bool)
	Set whether the button is down (English only)

bool	isDown () const
	Return whether the button is down (English only)

virtual void	paintEvent (QPaintEvent *) override
	Handle paint events (English only)

virtual void	mousePressEvent (QMouseEvent *) override
	Handle mouse press events (English only)

virtual void	mouseReleaseEvent (QMouseEvent *) override
	Handle mouse release events (English only)

virtual void	keyPressEvent (QKeyEvent *) override
	Handle key press events (English only)

virtual void	keyReleaseEvent (QKeyEvent *) override
	Handle key release events (English only)

Protected 成员函数继承自 QwtTextLabel
virtual void	drawContents (QPainter *)
	Draw the contents

额外继承的成员函数
属性继承自 QwtTextLabel
int	indent

int	margin

QString	plainText

详细描述

A widget representing an item on a QwtLegend

QwtLegendLabel is used to display legend items in a QwtLegend. It can show an icon and a text label, and supports different interaction modes (ReadOnly, Clickable, Checkable).

参见: QwtLegend, QwtLegendData

构造及析构函数说明

◆ QwtLegendLabel()

QwtLegendLabel::QwtLegendLabel ( QWidget * parent = nullptr )

explicit

Constructor for QwtLegendLabel

参数

parent Parent widget

Destructor

成员函数说明

◆ checked

void QwtLegendLabel::checked ( bool )

signal

Signal emitted when the legend item has been toggled

参数

on	True if checked, false otherwise

◆ data()

const QwtLegendData & QwtLegendLabel::data ( ) const

Return the attributes of the label

返回: Attributes of the label

参见: setData(), QwtPlotItem::legendData()

◆ icon()

QPixmap QwtLegendLabel::icon ( ) const

Return the pixmap representing a plot item

返回: Pixmap representing a plot item

参见: setIcon()

◆ isChecked()

bool QwtLegendLabel::isChecked ( ) const

Return true if the item is checked

返回: True if the item is checked

◆ isDown()

bool QwtLegendLabel::isDown ( ) const

protected

Return whether the button is down (English only)

Return true, if the item is down

◆ itemMode()

QwtLegendData::Mode QwtLegendLabel::itemMode ( ) const

Return the item mode

返回: Item mode

参见: setItemMode()

◆ keyPressEvent()

void QwtLegendLabel::keyPressEvent ( QKeyEvent * e )

overrideprotectedvirtual

Handle key press events (English only)

Handle key press events

◆ keyReleaseEvent()

void QwtLegendLabel::keyReleaseEvent ( QKeyEvent * e )

overrideprotectedvirtual

Handle key release events (English only)

Handle key release events

◆ mousePressEvent()

void QwtLegendLabel::mousePressEvent ( QMouseEvent * e )

overrideprotectedvirtual

Handle mouse press events (English only)

Handle mouse press events

◆ mouseReleaseEvent()

void QwtLegendLabel::mouseReleaseEvent ( QMouseEvent * e )

overrideprotectedvirtual

Handle mouse release events (English only)

Handle mouse release events

◆ paintEvent()

void QwtLegendLabel::paintEvent ( QPaintEvent * e )

overrideprotectedvirtual

Handle paint events (English only)

Paint event

重载 QwtTextLabel .

◆ setChecked

void QwtLegendLabel::setChecked ( bool on )

slot

Check/Uncheck the item

参数

on	check/uncheck

参见: setItemMode()

◆ setData()

void QwtLegendLabel::setData ( const QwtLegendData & legendData )

Set the attributes of the legend label

参数

legendData Attributes of the label

参见: data()

◆ setDown()

void QwtLegendLabel::setDown ( bool down )

protected

Set whether the button is down (English only)

Set the item being down

◆ setIcon()

void QwtLegendLabel::setIcon ( const QPixmap & icon )

Assign the icon

参数

icon	Pixmap representing a plot item

参见: icon(), QwtPlotItem::legendIcon()

◆ setItemMode()

void QwtLegendLabel::setItemMode ( QwtLegendData::Mode mode )

Set the item mode

The default is QwtLegendData::ReadOnly

参数

mode Item mode

参见: itemMode()

◆ setSpacing()

void QwtLegendLabel::setSpacing ( int spacing )

Change the spacing between icon and text

参数

spacing Spacing

参见: spacing(), QwtTextLabel::margin()

◆ setText()

void QwtLegendLabel::setText ( const QwtText & text )

overridevirtual

Set the text to the legend item

参数

text	Text label

参见: QwtTextLabel::text()

重载 QwtTextLabel .

◆ sizeHint()

QSize QwtLegendLabel::sizeHint ( ) const

overridevirtual

Return a size hint

返回: Size hint

重载 QwtTextLabel .

◆ spacing()

int QwtLegendLabel::spacing ( ) const

Return the spacing between icon and text

返回: Spacing between icon and text

参见: setSpacing(), QwtTextLabel::margin()

该类的文档由以下文件生成:

/home/runner/work/QWT/QWT/src/plot/qwt_legend_label.h
/home/runner/work/QWT/QWT/src/plot/qwt_legend_label.cpp

类

Public 槽

信号

Public 成员函数

Protected 成员函数

额外继承的成员函数

详细描述

构造及析构函数说明

◆ QwtLegendLabel()

成员函数说明

◆ checked

◆ data()

◆ icon()

◆ isChecked()

◆ isDown()

◆ itemMode()

◆ keyPressEvent()

◆ keyReleaseEvent()

◆ mousePressEvent()

◆ mouseReleaseEvent()

◆ paintEvent()

◆ setChecked

◆ setData()

◆ setDown()

◆ setIcon()

◆ setItemMode()

◆ setSpacing()

◆ setText()

◆ sizeHint()

◆ spacing()