QRegion: add move ctor

After this change, this was the distribution of calls in
QtGui and QtWidgets when the patch was developed for 5.4:

      QtGui  QtWidgets
move  23     63
copy  23     36

Change-Id: If3f536e52fc242c585e7fa0662049c0657efcc9c
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/tests/auto/gui/painting/qregion/tst_qregion.cpp b/tests/auto/gui/painting/qregion/tst_qregion.cpp
index 7292841e5d..d24435198e 100644
--- a/tests/auto/gui/painting/qregion/tst_qregion.cpp
+++ b/tests/auto/gui/painting/qregion/tst_qregion.cpp
@@ -45,6 +45,7 @@ public:
     tst_QRegion();
 
 private slots:
+    void moveSemantics();
     void boundingRect();
     void rects();
     void swap();
@@ -93,6 +94,28 @@ tst_QRegion::tst_QRegion()
 {
 }
 
+void tst_QRegion::moveSemantics()
+{
+    const QRegion rect(QRect(0, 0, 100, 100));
+
+    // move assignment
+    {
+        QRegion r1 = rect;
+        QRegion r2;
+        r2 = std::move(r1);
+        QVERIFY(r1.isNull());
+        QCOMPARE(r2, rect);
+    }
+
+    // move construction
+    {
+        QRegion r1 = rect;
+        QRegion r2 = std::move(r1);
+        QVERIFY(r1.isNull());
+        QCOMPARE(r2, rect);
+    }
+}
+
 void tst_QRegion::boundingRect()
 {
     {