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Fix album art rendering on High DPI displays

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This commit is contained in:
Fletcher Dostie
2023-03-22 21:33:22 -07:00
committed by Jonas Kvinge
parent ca176c319d
commit bb43cc63ec
5 changed files with 23 additions and 15 deletions
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10
src/utilities/imageutils.cpp
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@@ -138,14 +138,16 @@ QByteArray ImageUtils::FileToJpegData(const QString &filename) {
}
QImage ImageUtils::ScaleAndPad(const QImage &image, const bool scale, const bool pad, const int desired_height) {
QImage ImageUtils::ScaleAndPad(const QImage &image, const bool scale, const bool pad, const int desired_height, const qreal device_pixel_ratio) {
if (image.isNull()) return image;
const int scaled_height = desired_height * device_pixel_ratio;
// Scale the image down
QImage image_scaled;
if (scale) {
image_scaled = image.scaled(QSize(desired_height, desired_height), Qt::KeepAspectRatio, Qt::SmoothTransformation);
image_scaled = image.scaled(QSize(scaled_height, scaled_height), Qt::KeepAspectRatio, Qt::SmoothTransformation);
}
else {
image_scaled = image;
@@ -153,11 +155,11 @@ QImage ImageUtils::ScaleAndPad(const QImage &image, const bool scale, const bool
// Pad the image to height x height
if (pad) {
QImage image_padded(desired_height, desired_height, QImage::Format_ARGB32);
QImage image_padded(scaled_height, scaled_height, QImage::Format_ARGB32);
image_padded.fill(0);
QPainter p(&image_padded);
p.drawImage((desired_height - image_scaled.width()) / 2, (desired_height - image_scaled.height()) / 2, image_scaled);
p.drawImage((scaled_height - image_scaled.width()) / 2, (scaled_height - image_scaled.height()) / 2, image_scaled);
p.end();
image_scaled = image_padded;