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QwtArrowButton(3) Qwt User's Guide QwtArrowButton(3)


QwtArrowButton - Arrow Button.


#include <qwt_arrow_button.h>

Inherits QPushButton.

Public Member Functions

QwtArrowButton (int num, Qt::ArrowType, QWidget *parent=NULL)
virtual ~QwtArrowButton ()
Destructor. Qt::ArrowType arrowType () const
The direction of the arrows. int num () const
The number of arrows. virtual QSize sizeHint () const override
virtual QSize minimumSizeHint () const override
Return a minimum size hint.

Protected Member Functions

virtual void paintEvent (QPaintEvent *) override
virtual void keyPressEvent (QKeyEvent *) override
autoRepeat for the space keys virtual void drawButtonLabel (QPainter *)
Draw the button label. virtual void drawArrow (QPainter *, const QRect &, Qt::ArrowType) const
virtual QRect labelRect () const
virtual QSize arrowSize (Qt::ArrowType, const QSize &boundingSize) const

Detailed Description

Arrow Button.

A push button with one or more filled triangles on its front. An Arrow button can have 1 to 3 arrows in a row, pointing up, down, left or right.

Definition at line 23 of file qwt_arrow_button.h.

Constructor & Destructor Documentation

QwtArrowButton::QwtArrowButton (int num, Qt::ArrowType arrowType, QWidget * parent = NULL) [explicit]


num Number of arrows
arrowType see Qt::ArrowType in the Qt docs.
parent Parent widget

Definition at line 55 of file qwt_arrow_button.cpp.

Member Function Documentation

QSize QwtArrowButton::arrowSize (Qt::ArrowType arrowType, const QSize & boundingSize) const [protected], [virtual]

Calculate the size for a arrow that fits into a rectangle of a given size


arrowType Arrow type
boundingSize Bounding size


Size of the arrow

Definition at line 296 of file qwt_arrow_button.cpp.

void QwtArrowButton::drawArrow (QPainter * painter, const QRect & r, Qt::ArrowType arrowType) const [protected], [virtual]

Draw an arrow int a bounding rectangle


painter Painter
r Rectangle where to paint the arrow
arrowType Arrow type

Definition at line 215 of file qwt_arrow_button.cpp.

void QwtArrowButton::drawButtonLabel (QPainter * painter) [protected], [virtual]

Draw the button label.


painter Painter

See also

The Qt Manual for QPushButton

Definition at line 143 of file qwt_arrow_button.cpp.

QRect QwtArrowButton::labelRect () const [protected], [virtual]


the bounding rectangle for the label

Definition at line 104 of file qwt_arrow_button.cpp.

void QwtArrowButton::paintEvent (QPaintEvent * event) [override], [protected], [virtual]

Paint event handler


event Paint event

Definition at line 130 of file qwt_arrow_button.cpp.

QSize QwtArrowButton::sizeHint () const [override], [virtual]


a size hint

Definition at line 259 of file qwt_arrow_button.cpp.


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Sun Jul 18 2021 Version 6.2.0