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-rw-r--r--src/gui/painting/qtransform.h7
-rw-r--r--tests/auto/qtransform/tst_qtransform.cpp5
2 files changed, 9 insertions, 3 deletions
diff --git a/src/gui/painting/qtransform.h b/src/gui/painting/qtransform.h
index 9909643..212a582 100644
--- a/src/gui/painting/qtransform.h
+++ b/src/gui/painting/qtransform.h
@@ -293,7 +293,8 @@ inline QTransform &QTransform::operator*=(qreal num)
affine._dx *= num;
affine._dy *= num;
m_33 *= num;
- m_dirty |= TxScale;
+ if (m_dirty < TxScale)
+ m_dirty = TxScale;
return *this;
}
inline QTransform &QTransform::operator/=(qreal div)
@@ -316,7 +317,7 @@ inline QTransform &QTransform::operator+=(qreal num)
affine._dx += num;
affine._dy += num;
m_33 += num;
- m_dirty |= TxProject;
+ m_dirty = TxProject;
return *this;
}
inline QTransform &QTransform::operator-=(qreal num)
@@ -332,7 +333,7 @@ inline QTransform &QTransform::operator-=(qreal num)
affine._dx -= num;
affine._dy -= num;
m_33 -= num;
- m_dirty |= TxProject;
+ m_dirty = TxProject;
return *this;
}
diff --git a/tests/auto/qtransform/tst_qtransform.cpp b/tests/auto/qtransform/tst_qtransform.cpp
index 827a486..a3ded8e 100644
--- a/tests/auto/qtransform/tst_qtransform.cpp
+++ b/tests/auto/qtransform/tst_qtransform.cpp
@@ -610,6 +610,11 @@ void tst_QTransform::types()
m4.rotate(45);
QCOMPARE(m4.type(), QTransform::TxRotate);
+
+ QTransform m5;
+ m5.scale(5, 5);
+ m5 = m5.adjoint() / m5.determinant();
+ QCOMPARE(m5.type(), QTransform::TxScale);
}