2 files changed, 19 insertions, 4 deletions
diff --git a/src/widgets/itemviews/qheaderview.cpp b/src/widgets/itemviews/qheaderview.cpp
index d6db7deee7..463ed7e58c 100644
--- a/src/widgets/itemviews/qheaderview.cpp
+++ b/src/widgets/itemviews/qheaderview.cpp
@@ -3376,7 +3376,7 @@ void QHeaderViewPrivate::resizeSections(QHeaderView::ResizeMode globalMode, bool
         // because it isn't stretch, determine its width and remove that from lengthToStretch
         int sectionSize = 0;
         if (resizeMode == QHeaderView::Interactive || resizeMode == QHeaderView::Fixed) {
-            sectionSize = headerSectionSize(i);
+            sectionSize = qBound(q->minimumSectionSize(), headerSectionSize(i), q->maximumSectionSize());
         } else { // resizeMode == QHeaderView::ResizeToContents
             int logicalIndex = q->logicalIndex(i);
             sectionSize = qMax(viewSectionSizeHint(logicalIndex),
@@ -3551,6 +3551,8 @@ void QHeaderViewPrivate::cascadingResize(int visual, int newSize)
 
         // cascade the section size change
         for (int i = visual + 1; i < sectionCount(); ++i) {
+            if (isVisualIndexHidden(i))
+                continue;
             if (!sectionIsCascadable(i))
                 continue;
             int currentSectionSize = headerSectionSize(i);
@@ -3593,6 +3595,8 @@ void QHeaderViewPrivate::cascadingResize(int visual, int newSize)
         // cascade the section size change
         if (delta < 0 && newSize < minimumSize) {
             for (int i = visual - 1; i >= 0; --i) {
+                if (isVisualIndexHidden(i))
+                    continue;
                 if (!sectionIsCascadable(i))
                     continue;
                 int sectionSize = headerSectionSize(i);
@@ -3607,6 +3611,8 @@ void QHeaderViewPrivate::cascadingResize(int visual, int newSize)
         // let the next section get the space from the resized section
         if (!sectionResized) {
             for (int i = visual + 1; i < sectionCount(); ++i) {
+                if (isVisualIndexHidden(i))
+                    continue;
                 if (!sectionIsCascadable(i))
                     continue;
                 int currentSectionSize = headerSectionSize(i);
diff --git a/src/widgets/itemviews/qlistview.cpp b/src/widgets/itemviews/qlistview.cpp
index 0efee755a2..7f027595b7 100644
--- a/src/widgets/itemviews/qlistview.cpp
+++ b/src/widgets/itemviews/qlistview.cpp
@@ -2873,10 +2873,19 @@ void QIconModeViewBase::scrollContentsBy(int dx, int dy, bool scrollElasticBand)
 void QIconModeViewBase::dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight)
 {
     if (column() >= topLeft.column() && column() <= bottomRight.column())  {
-        QStyleOptionViewItem option = viewOptions();
-        int bottom = qMin(items.count(), bottomRight.row() + 1);
+        const QStyleOptionViewItem option = viewOptions();
+        const int bottom = qMin(items.count(), bottomRight.row() + 1);
+        const bool useItemSize = !dd->grid.isValid();
         for (int row = topLeft.row(); row < bottom; ++row)
-            items[row].resize(itemSize(option, modelIndex(row)));
+        {
+            QSize s = itemSize(option, modelIndex(row));
+            if (!useItemSize)
+            {
+                s.setWidth(qMin(dd->grid.width(), s.width()));
+                s.setHeight(qMin(dd->grid.height(), s.height()));
+            }
+            items[row].resize(s);
+        }
     }
 }