Fix 'lighter' compositionmode in Context2D

'lighter' is defined as Source + Destination which is the equivalent
of QPainter::CompositionMode_Plus.

Change-Id: I88857ffbabe319e955f588b6d74bc96da8714f3d
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/quick/items/context2d/qquickcontext2d.cpp b/src/quick/items/context2d/qquickcontext2d.cpp
index b924701f2b..c26f641754 100644
--- a/src/quick/items/context2d/qquickcontext2d.cpp
+++ b/src/quick/items/context2d/qquickcontext2d.cpp
@@ -794,7 +794,7 @@ static QPainter::CompositionMode qt_composite_mode_from_string(const QString &co
     } else if (compositeOperator == QLatin1String("destination-over")) {
         return QPainter::CompositionMode_DestinationOver;
     } else if (compositeOperator == QLatin1String("lighter")) {
-        return QPainter::CompositionMode_Lighten;
+        return QPainter::CompositionMode_Plus;
     } else if (compositeOperator == QLatin1String("copy")) {
         return QPainter::CompositionMode_Source;
     } else if (compositeOperator == QLatin1String("xor")) {
@@ -857,7 +857,7 @@ static QString qt_composite_mode_to_string(QPainter::CompositionMode op)
     case QPainter::CompositionMode_Xor:
         return QStringLiteral("xor");
     case QPainter::CompositionMode_Plus:
-        return QStringLiteral("plus");
+        return QStringLiteral("lighter");
     case QPainter::CompositionMode_Multiply:
         return QStringLiteral("qt-multiply");
     case QPainter::CompositionMode_Screen: