Fix for tabwidget usesScrollButton being overriden by stylesheet

Setting a stylesheet or reparenting a widget into a
widget using style sheet would cause the usesScrollButtons
to be reset. Instead we now keep the flag whenever
it has been explicitly set by the user rather than
querying from the style again.

Task-number: QTBUG-3370
Reviewed-by: jbache

1 files changed, 5 insertions, 1 deletions

diff --git a/tests/auto/qtabbar/tst_qtabbar.cpp b/tests/auto/qtabbar/tst_qtabbar.cpp
index 2db72b924e..e83312d02a 100644
--- a/tests/auto/qtabbar/tst_qtabbar.cpp
+++ b/tests/auto/qtabbar/tst_qtabbar.cpp
@@ -295,6 +295,10 @@ void tst_QTabBar::setUsesScrollButtons()
     if (usesArrows != -128)
         tabBar.setUsesScrollButtons(usesArrows);
     QTEST(tabBar.usesScrollButtons(), "expectedArrows");
+
+    // Make sure style sheet does not override user set mode
+    tabBar.setStyleSheet("QWidget { background-color: #ABA8A6;}");
+    QTEST(tabBar.usesScrollButtons(), "expectedArrows");
 }
 
 void tst_QTabBar::removeLastTab()
@@ -532,7 +536,7 @@ void tst_QTabBar::task251184_removeTab()
 
     QCOMPARE(bar.count(), 1);
     QCOMPARE(bar.currentIndex(), 0);
-    QCOMPARE(bar.tabText(bar.currentIndex()), QString("bar2"));    
+    QCOMPARE(bar.tabText(bar.currentIndex()), QString("bar2"));
 }