Improve drawing selected items in Compact/Details View and Places Panel

[dolphin.git] / src / kitemviews / kstandarditemlistview.cpp

diff --git a/src/kitemviews/kstandarditemlistview.cpp b/src/kitemviews/kstandarditemlistview.cpp
index 79eb86b891f865697f467ae3f2839caf7fa5c329..135cd0b7df0102e698cbde8155fb4a19d4206861 100644 (file)
--- a/src/kitemviews/kstandarditemlistview.cpp
+++ b/src/kitemviews/kstandarditemlistview.cpp
@@ -48,23 +48,8 @@ void KStandardItemListView::setItemLayout(ItemLayout layout)
     const ItemLayout previous = m_itemLayout;
     m_itemLayout = layout;
 
-    switch (layout) {
-    case IconsLayout:
-        setScrollOrientation(Qt::Vertical);
-        setSupportsItemExpanding(false);
-        break;
-    case DetailsLayout:
-        setScrollOrientation(Qt::Vertical);
-        setSupportsItemExpanding(true);
-        break;
-    case CompactLayout:
-        setScrollOrientation(Qt::Horizontal);
-        setSupportsItemExpanding(false);
-        break;
-    default:
-        Q_ASSERT(false);
-        break;
-    }
+    setSupportsItemExpanding(itemLayoutSupportsItemExpanding(layout));
+    setScrollOrientation(layout == CompactLayout ? Qt::Horizontal : Qt::Vertical);
 
     onItemLayoutChanged(layout, previous);
 
@@ -104,17 +89,22 @@ void KStandardItemListView::initializeItemListWidget(KItemListWidget* item)
 
 bool KStandardItemListView::itemSizeHintUpdateRequired(const QSet<QByteArray>& changedRoles) const
 {
+    // The only thing that can modify the item's size hint is the amount of space
+    // needed to display the text for the visible roles.
     // Even if the icons have a different size they are always aligned within
     // the area defined by KItemStyleOption.iconSize and hence result in no
     // change of the item-size.
-    const bool containsIconName = changedRoles.contains("iconName");
-    const bool containsIconPixmap = changedRoles.contains("iconPixmap");
-    const int count = changedRoles.count();
-
-    const bool iconChanged = (containsIconName && containsIconPixmap && count == 2) ||
-                             (containsIconName && count == 1) ||
-                             (containsIconPixmap && count == 1);
-    return !iconChanged;
+    foreach (const QByteArray& role, visibleRoles()) {
+        if (changedRoles.contains(role)) {
+            return true;
+        }
+    }
+    return false;
+}
+
+bool KStandardItemListView::itemLayoutSupportsItemExpanding(ItemLayout layout) const
+{
+    return layout == DetailsLayout;
 }
 
 void KStandardItemListView::onItemLayoutChanged(ItemLayout current, ItemLayout previous)