Update the layout asynchronously when items are changed

This results in less overhead if item-changes are done rather fast
(e.g. when applying the number of sub directories for the "size"
role).

diff --git a/src/kitemviews/kitemlistview.cpp b/src/kitemviews/kitemlistview.cpp
index f15d1ed9d5ffb390c8b160316ec349c2cdd691ab..0a346b094bebfa17c3b4a1d8baf39ad5d78b1ae8 100644 (file)
--- a/src/kitemviews/kitemlistview.cpp
+++ b/src/kitemviews/kitemlistview.cpp
@@ -764,7 +764,9 @@ void KItemListView::slotItemsChanged(const KItemRangeList& itemRanges,
         if (updateSizeHints) {
             m_sizeHintResolver->itemsChanged(index, count, roles);
             m_layouter->markAsDirty();
         if (updateSizeHints) {
             m_sizeHintResolver->itemsChanged(index, count, roles);
             m_layouter->markAsDirty();

-            updateLayout();
+            if (!m_layoutTimer->isActive()) {
+                m_layoutTimer->start();
+            }

         }
 
         // Apply the changed roles to the visible item-widgets
         }
 
         // Apply the changed roles to the visible item-widgets