Add widget replace function to QLayout

Sometimes it is nice to be able to replace a widget in a layout.

Change-Id: I23a6a65e417e94d53bc48639503db1a142bc3f10
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/tests/auto/widgets/kernel/qstackedlayout/tst_qstackedlayout.cpp b/tests/auto/widgets/kernel/qstackedlayout/tst_qstackedlayout.cpp
index 9ab7bb5305..1ff2e7867c 100644
--- a/tests/auto/widgets/kernel/qstackedlayout/tst_qstackedlayout.cpp
+++ b/tests/auto/widgets/kernel/qstackedlayout/tst_qstackedlayout.cpp
@@ -70,6 +70,7 @@ private slots:
     void removeWidget();
     void keepFocusAfterSetCurrent();
     void heigthForWidth();
+    void replaceWidget();
 
 private:
     QWidget *testWidget;
@@ -393,6 +394,27 @@ void tst_QStackedLayout::heigthForWidth()
 
 }
 
+void tst_QStackedLayout::replaceWidget()
+{
+    QWidget w;
+    QStackedLayout *stackLayout = new QStackedLayout(&w);
+
+    QLineEdit *replaceFrom = new QLineEdit;
+    QLineEdit *replaceTo = new QLineEdit;
+    stackLayout->addWidget(new QLineEdit());
+    stackLayout->addWidget(replaceFrom);
+    stackLayout->addWidget(new QLineEdit());
+    stackLayout->setCurrentWidget(replaceFrom);
+
+    QCOMPARE(stackLayout->indexOf(replaceFrom), 1);
+    QCOMPARE(stackLayout->indexOf(replaceTo), -1);
+    stackLayout->replaceWidget(replaceFrom, replaceTo);
+
+    QCOMPARE(stackLayout->indexOf(replaceFrom), -1);
+    QCOMPARE(stackLayout->indexOf(replaceTo), 1);
+    QCOMPARE(stackLayout->currentWidget(), replaceTo);
+}
+
 QTEST_MAIN(tst_QStackedLayout)
 #include "tst_qstackedlayout.moc"