Animation finetuning

If dynamic item sizes are used don't animate the size of the widget
in along the dynamic direction. This prevents unnecessary animations when
increasing the window width in combination with e.g. the details view.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/kitemviews/kitemlistview.cpp b/src/kitemviews/kitemlistview.cpp
index bda559d2c..20a5f4847 100644
--- a/src/kitemviews/kitemlistview.cpp
+++ b/src/kitemviews/kitemlistview.cpp
@@ -1385,7 +1385,17 @@ void KItemListView::doLayout(LayoutAnimationHint hint, int changedIndex, int cha
         widget->setVisible(true);
 
         if (widget->size() != itemBounds.size()) {
+            // Resize the widget for the item to the changed size.
             if (animate) {
+                // If a dynamic item size is used then no animation is done in the direction
+                // of the dynamic size.
+                if (m_itemSize.width() <= 0) {
+                    // The width is dynamic, apply the new width without animation.
+                    widget->resize(itemBounds.width(), widget->size().height());
+                } else if (m_itemSize.height() <= 0) {
+                    // The height is dynamic, apply the new height without animation.
+                    widget->resize(widget->size().width(), itemBounds.height());
+                }
                 m_animation->start(widget, KItemListViewAnimation::ResizeAnimation, itemBounds.size());
             } else {
                 widget->resize(itemBounds.size());