Better support for RTL

This MR fixes some issues related to RTL scripts:
- wrong layout in Compact View mode
- broken horizontal scrolling in Icon View and Details View modes
- broken navigation with left and right arrow keys in Details View mode

BUG: 484012  
BUG: 449493

1 files changed, 5 insertions, 0 deletions

diff --git a/src/kitemviews/kitemlistcontainer.cpp b/src/kitemviews/kitemlistcontainer.cpp
index 1cac8f7a6..2f9f5d401 100644
--- a/src/kitemviews/kitemlistcontainer.cpp
+++ b/src/kitemviews/kitemlistcontainer.cpp
@@ -399,6 +399,11 @@ void KItemListContainer::updateSmoothScrollers(Qt::Orientation orientation)
         m_horizontalSmoothScroller->setPropertyName("scrollOffset");
         m_verticalSmoothScroller->setPropertyName("itemOffset");
     }
+
+    const bool isRightToLeft = m_controller->view()->layoutDirection() == Qt::RightToLeft;
+    QScrollBar *hScrollBar = horizontalScrollBar();
+    hScrollBar->setInvertedAppearance(isRightToLeft && orientation == Qt::Vertical);
+    hScrollBar->setInvertedControls(!isRightToLeft || orientation == Qt::Vertical);
 }
 
 void KItemListContainer::updateScrollOffsetScrollBarPolicy()