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Enable high-dpi support for plots.

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This commit is contained in:
Alan Morris 2021-08-18 16:15:55 -06:00
parent fc7622e901
commit 6f487c2c24
1 changed files with 5 additions and 2 deletions
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7
lib/jkqtplotter/jkqtplotter.cpp
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@ -1236,8 +1236,9 @@ void JKQTPlotter::resizeEvent(QResizeEvent *event) {
void JKQTPlotter::delayedResizeEvent()
{
int plotImageWidth=width();
int plotImageHeight=height();
qreal dpr = devicePixelRatioF();
int plotImageWidth=width() * dpr;
int plotImageHeight=height() * dpr;
plotImageHeight=plotImageHeight-getPlotYOffset();
//qDebug()<<"resize: "<<plotImageWidth<<" x "<<plotImageHeight<<std::endl;
@ -1245,6 +1246,8 @@ void JKQTPlotter::delayedResizeEvent()
if (plotImageWidth != image.width() || plotImageHeight != image.height()) {
QImage newImage(QSize(plotImageWidth, plotImageHeight), QImage::Format_ARGB32);
newImage.setDevicePixelRatio(dpr);
image=newImage;
sizeChanged=true;
}