X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/a76cb4c67f8b1f30f29482228fecca89a9c1cb6f..676cdcbbdbea031c1bec56230561bf8a0efcd0f6:/src/kitemviews/kfileitemlistview.cpp

diff --git a/src/kitemviews/kfileitemlistview.cpp b/src/kitemviews/kfileitemlistview.cpp
index f5535a653..1b6071820 100644
--- a/src/kitemviews/kfileitemlistview.cpp
+++ b/src/kitemviews/kfileitemlistview.cpp
@@ -24,12 +24,13 @@
 #include "kfileitemmodel.h"
 #include "private/kpixmapmodifier.h"
 
-#include <QDebug>
 #include <QIcon>
 #include <KIconLoader>
 
 #include <QPainter>
 #include <QTimer>
+#include <QGraphicsScene>
+#include <QGraphicsView>
 
 // #define KFILEITEMLISTVIEW_DEBUG
 
@@ -42,7 +43,7 @@ namespace {
 
     // If the icon size changes, a longer delay is used. This prevents that
     // the expensive re-generation of all previews is triggered repeatedly when
-    // chaning the zoom level.
+    // changing the zoom level.
     const int LongInterval = 300;
 }
 
@@ -66,7 +67,7 @@ KFileItemListView::KFileItemListView(QGraphicsWidget* parent) :
     m_updateIconSizeTimer->setInterval(LongInterval);
     connect(m_updateIconSizeTimer, &QTimer::timeout, this, &KFileItemListView::updateIconSize);
 
-    setVisibleRoles(QList<QByteArray>() << "text");
+    setVisibleRoles({"text"});
 }
 
 KFileItemListView::~KFileItemListView()
@@ -155,21 +156,23 @@ QPixmap KFileItemListView::createDragPixmap(const KItemSet& indexes) const
         yCount = xCount;
     }
 
+    const qreal dpr = scene()->views()[0]->devicePixelRatio();
     // Draw the selected items into the grid cells.
-    QPixmap dragPixmap(xCount * size + xCount, yCount * size + yCount);
+    QPixmap dragPixmap(QSize(xCount * size + xCount, yCount * size + yCount) * dpr);
+    dragPixmap.setDevicePixelRatio(dpr);
     dragPixmap.fill(Qt::transparent);
 
     QPainter painter(&dragPixmap);
     int x = 0;
     int y = 0;
 
-    foreach (int index, indexes) {
+    for (int index : indexes) {
         QPixmap pixmap = model()->data(index).value("iconPixmap").value<QPixmap>();
         if (pixmap.isNull()) {
             QIcon icon = QIcon::fromTheme(model()->data(index).value("iconName").toString());
             pixmap = icon.pixmap(size, size);
         } else {
-            KPixmapModifier::scale(pixmap, QSize(size, size));
+            KPixmapModifier::scale(pixmap, QSize(size, size) * dpr);
         }
 
         painter.drawPixmap(x, y, pixmap);
@@ -205,7 +208,7 @@ void KFileItemListView::initializeItemListWidget(KItemListWidget* item)
 
         const KFileItem fileItem = fileItemModel->fileItem(item->index());
         data.insert("iconName", fileItem.iconName());
-        item->setData(data, QSet<QByteArray>() << "iconName");
+        item->setData(data, {"iconName"});
     }
 }