Copy the state to the picture paintengine when updating the state

When the state of the paint changes then the one used for the picture
paintengine needs to be kept in sync. Otherwise the rendering will be
incorrect.

Task-number: QTBUG-43145
Change-Id: Ia55a4e940d109bedb7c2eff4d985d3b212da75a4
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/src/printsupport/kernel/qpaintengine_alpha.cpp b/src/printsupport/kernel/qpaintengine_alpha.cpp
index 010a628e4f..a81f3eae43 100644
--- a/src/printsupport/kernel/qpaintengine_alpha.cpp
+++ b/src/printsupport/kernel/qpaintengine_alpha.cpp
@@ -146,8 +146,16 @@ void QAlphaPaintEngine::updateState(const QPaintEngineState &state)
 
     d->m_hasalpha = d->m_alphaOpacity || d->m_alphaBrush || d->m_alphaPen;
 
-    if (d->m_picengine)
+    if (d->m_picengine) {
+        const QPainter *p = painter();
+        d->m_picpainter->setPen(p->pen());
+        d->m_picpainter->setBrush(p->brush());
+        d->m_picpainter->setBrushOrigin(p->brushOrigin());
+        d->m_picpainter->setFont(p->font());
+        d->m_picpainter->setOpacity(p->opacity());
+        d->m_picpainter->setTransform(p->combinedTransform());
         d->m_picengine->updateState(state);
+    }
 }
 
 void QAlphaPaintEngine::drawPath(const QPainterPath &path)