From ae3438eb080976cb6f04c4189042842845590efc Mon Sep 17 00:00:00 2001 From: Kai Uwe Broulik Date: Wed, 11 Jul 2018 15:41:58 +0200 Subject: [PATCH] [KStandardItemListWidget] Avoid needless image resizing There be rounding errors when scaling pixmaps when keeping aspect ratio Differential Revision: https://phabricator.kde.org/D11319 --- src/kitemviews/kstandarditemlistwidget.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/kitemviews/kstandarditemlistwidget.cpp b/src/kitemviews/kstandarditemlistwidget.cpp index bc3bb29de..8b7eacf44 100644 --- a/src/kitemviews/kstandarditemlistwidget.cpp +++ b/src/kitemviews/kstandarditemlistwidget.cpp @@ -1011,7 +1011,8 @@ void KStandardItemListWidget::updatePixmapCache() const int maxScaledIconHeight = scaledIconSize; m_scaledPixmapSize = m_pixmap.size(); - m_scaledPixmapSize.scale(maxScaledIconWidth, maxScaledIconHeight, Qt::KeepAspectRatio); + m_scaledPixmapSize.scale(maxScaledIconWidth * qApp->devicePixelRatio(), maxScaledIconHeight * qApp->devicePixelRatio(), Qt::KeepAspectRatio); + m_scaledPixmapSize = m_scaledPixmapSize / qApp->devicePixelRatio(); if (iconOnTop) { // Center horizontally and align on bottom within the icon-area -- 2.47.3