QHeaderView: fixed the sizeHint with hidden sections

We used to check the 100 first sections and 100 last sections
Now we make sure we check 100 visible sections

Task-number: 255574

1 files changed, 8 insertions, 4 deletions

diff --git a/src/gui/itemviews/qheaderview.cpp b/src/gui/itemviews/qheaderview.cpp
index c5e6fed..b1306cc 100644
--- a/src/gui/itemviews/qheaderview.cpp
+++ b/src/gui/itemviews/qheaderview.cpp
@@ -526,20 +526,24 @@ QSize QHeaderView::sizeHint() const
         return d->cachedSizeHint;
     int width = 0;
     int height = 0;
+    d->executePostedLayout();
+
     // get size hint for the first n sections
-    int c = qMin(count(), 100);
-    for (int i = 0; i < c; ++i) {
+    int i = 0;
+    for (int checked = 0; checked < 100 && i < d->sectionCount; ++i) {
         if (isSectionHidden(i))
             continue;
+        checked++;
         QSize hint = sectionSizeFromContents(i);
         width = qMax(hint.width(), width);
         height = qMax(hint.height(), height);
     }
     // get size hint for the last n sections
-    c = qMax(count() - 100, c);
-    for (int j = count() - 1; j >= c; --j) {
+    i = qMax(i, d->sectionCount - 100 );
+    for (int j = d->sectionCount - 1, checked = 0; j > i && checked < 100; --j) {
         if (isSectionHidden(j))
             continue;
+        checked++;
         QSize hint = sectionSizeFromContents(j);
         width = qMax(hint.width(), width);
         height = qMax(hint.height(), height);