Fixed rounding bug in raster paint engine rect / image drawing.

Change 855aa89e0ba99f8a0f75d7b31930bab2cefb93f8 incorrectly changed
toNormalizedFillRect to use int truncation instead of qRound. This
fixes the autotest failure in tst_QPainter::drawRect2 as well.

Reviewed-by: Trond

1 files changed, 21 insertions, 0 deletions

diff --git a/tests/auto/qpainter/tst_qpainter.cpp b/tests/auto/qpainter/tst_qpainter.cpp
index 7e42da801d..5e5bd399b5 100644
--- a/tests/auto/qpainter/tst_qpainter.cpp
+++ b/tests/auto/qpainter/tst_qpainter.cpp
@@ -202,6 +202,7 @@ private slots:
 
     void drawImage_task217400_data();
     void drawImage_task217400();
+    void drawImage_1x1();
     void drawRect_task215378();
     void drawRect_task247505();
 
@@ -4237,5 +4238,25 @@ void tst_QPainter::emptyClip()
     p.fillPath(path, Qt::green);
 }
 
+void tst_QPainter::drawImage_1x1()
+{
+    QImage source(1, 1, QImage::Format_ARGB32_Premultiplied);
+    source.fill(0xffffffff);
+
+    QImage img(32, 32, QImage::Format_ARGB32_Premultiplied);
+    img.fill(0xff000000);
+    QPainter p(&img);
+    p.drawImage(QRectF(0.9, 0.9, 32, 32), source);
+    p.end();
+
+    QImage expected = img;
+    expected.fill(0xff000000);
+    p.begin(&expected);
+    p.fillRect(1, 1, 31, 31, Qt::white);
+    p.end();
+
+    QCOMPARE(img, expected);
+}
+
 QTEST_MAIN(tst_QPainter)
 #include "tst_qpainter.moc"