fix: blurry when raster image scaled down

2022-10-06 14:24:11 +08:00
parent 1cc5480f7d
commit 8347028871
1 changed files with 3 additions and 2 deletions
--- a/app/graphicsscene.cpp
+++ b/app/graphicsscene.cpp
@ -29,8 +29,9 @@ public:
        if (qFuzzyCompare(scaleHint, m_cachedScaleHint)) return m_cachedPixmap;
        QSizeF resizedScale(boundingRect().size());
        resizedScale *= scaleHint;
-        m_cachedPixmap = pixmap().scaled(
-             resizedScale.toSize(),
+        QPixmap && sourcePixmap = pixmap();
+        m_cachedPixmap = sourcePixmap.scaled(
+             resizedScale.toSize() * sourcePixmap.devicePixelRatioF(),
             Qt::KeepAspectRatio,
             Qt::SmoothTransformation);
        m_cachedScaleHint = scaleHint;