scaled_image_widget.cpp
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29 
30 #include <QWidget>
31 #include <QPainter>
32 
33 #include "scaled_image_widget.h"
34 
35 namespace rviz
36 {
37 ScaledImageWidget::ScaledImageWidget(float scale, QWidget* parent) : QWidget(parent), scale_(scale)
38 {
39 }
40 
41 void ScaledImageWidget::setImage(QPixmap image)
42 {
43  image_ = image;
44  update();
45 }
46 
48 {
49  return image_.size() * scale_;
50 }
51 
52 void ScaledImageWidget::paintEvent(QPaintEvent* /*event*/)
53 {
54  if (!image_.isNull())
55  {
56  QSize dest_size = image_.size();
57  dest_size.scale(width(), height(), Qt::KeepAspectRatio);
58  QRect dest_rect(width() / 2 - dest_size.width() / 2, height() / 2 - dest_size.height() / 2,
59  dest_size.width(), dest_size.height());
60 
61  QPainter painter(this);
62  painter.drawPixmap(dest_rect, image_);
63  }
64 }
65 
66 } // end namespace rviz
void update(const std::string &key, const XmlRpc::XmlRpcValue &v)
ScaledImageWidget(float scale, QWidget *parent=nullptr)
void setImage(QPixmap image)
QSize sizeHint() const override
void paintEvent(QPaintEvent *event) override


rviz
Author(s): Dave Hershberger, David Gossow, Josh Faust
autogenerated on Sat May 27 2023 02:06:25