A widget for showing a scaled version of an image (QPixmap). More...

#include <scaled_image_widget.h>

Inheritance diagram for rviz::ScaledImageWidget:

Public Member Functions
	ScaledImageWidget (float scale, QWidget *parent=nullptr)

void	setImage (QPixmap image)

QSize	sizeHint () const override

	~ScaledImageWidget () override

Protected Member Functions
void	paintEvent (QPaintEvent *event) override

Private Attributes
QPixmap	image_

float	scale_

Detailed Description

A widget for showing a scaled version of an image (QPixmap).

The scale is just a suggestion, given to Qt by calls to sizeHint(), which returns the image size multiplied by the scale. The actual rendered size is the largest that fits the image into the current widget size without changing the aspect ratio. It is always rendered in the center.

Definition at line 46 of file scaled_image_widget.h.

Constructor & Destructor Documentation

◆ ScaledImageWidget()

rviz::ScaledImageWidget::ScaledImageWidget	(	float	scale,
		QWidget *	parent = `nullptr`
	)

Definition at line 37 of file scaled_image_widget.cpp.

◆ ~ScaledImageWidget()

rviz::ScaledImageWidget::~ScaledImageWidget ( )

inlineoverride

Definition at line 51 of file scaled_image_widget.h.

Member Function Documentation

◆ paintEvent()

void rviz::ScaledImageWidget::paintEvent ( QPaintEvent * event )

overrideprotected

Definition at line 52 of file scaled_image_widget.cpp.

◆ setImage()

void rviz::ScaledImageWidget::setImage ( QPixmap image )

Definition at line 41 of file scaled_image_widget.cpp.

◆ sizeHint()

QSize rviz::ScaledImageWidget::sizeHint ( ) const

override

Definition at line 47 of file scaled_image_widget.cpp.

Member Data Documentation

◆ image_

QPixmap rviz::ScaledImageWidget::image_

private

Definition at line 63 of file scaled_image_widget.h.

◆ scale_

float rviz::ScaledImageWidget::scale_