Fix background of QAbstractScrollArea when styled only with pseudo-class

This may happen if you only have something like
QAbstractScrollArea:focus { background: foo; }
and you do not have a background set for the general case
and the viewport has a different background role (such as QTextEdit,
QAbstractItemView, ....)

This is a regression from 4.4 since in 4.4 the :focus has no effect if
you didn't have a background for the general case.

Reviewed-by: bnilsen
Task-number: 188195

1 files changed, 23 insertions, 0 deletions

diff --git a/tests/auto/qstylesheetstyle/tst_qstylesheetstyle.cpp b/tests/auto/qstylesheetstyle/tst_qstylesheetstyle.cpp
index 7954d0062c..aa63753d88 100644
--- a/tests/auto/qstylesheetstyle/tst_qstylesheetstyle.cpp
+++ b/tests/auto/qstylesheetstyle/tst_qstylesheetstyle.cpp
@@ -94,6 +94,7 @@ private slots:
     void embeddedFonts();
     void opaquePaintEvent_data();
     void opaquePaintEvent();
+    void task188195_baseBackground();
 
     //at the end because it mess with the style.
     void widgetStyle();
@@ -1354,6 +1355,28 @@ void tst_QStyleSheetStyle::opaquePaintEvent()
     QCOMPARE(cl.autoFillBackground(), !styled );
 }
 
+void tst_QStyleSheetStyle::task188195_baseBackground()
+{
+    QTreeView tree;
+    tree.setStyleSheet( "QTreeView:disabled { background-color:#ab1251; }" );
+    tree.show();
+    QTest::qWait(20);
+    QImage image(tree.width(), tree.height(), QImage::Format_ARGB32);
+    
+    tree.render(&image);
+    QVERIFY(testForColors(image, tree.palette().base().color()));
+    QVERIFY(!testForColors(image, QColor(0xab, 0x12, 0x51)));
+
+    tree.setEnabled(false);
+    tree.render(&image);
+    QVERIFY(testForColors(image, QColor(0xab, 0x12, 0x51)));
+
+    tree.setEnabled(true);
+    tree.render(&image);
+    QVERIFY(testForColors(image, tree.palette().base().color()));
+    QVERIFY(!testForColors(image, QColor(0xab, 0x12, 0x51)));
+}
+
 
 
 QTEST_MAIN(tst_QStyleSheetStyle)