iOS: Add support for QWindow::setOpacity()

Change-Id: I027154aef35d219f08915e195f2baf8595ef7343
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>

2 files changed, 7 insertions, 0 deletions

diff --git a/src/plugins/platforms/ios/qioswindow.h b/src/plugins/platforms/ios/qioswindow.h
index bcff3e202c..e55def1992 100644
--- a/src/plugins/platforms/ios/qioswindow.h
+++ b/src/plugins/platforms/ios/qioswindow.h
@@ -73,6 +73,7 @@ public:
     void setParent(const QPlatformWindow *window);
     void handleContentOrientationChange(Qt::ScreenOrientation orientation);
     void setVisible(bool visible);
+    void setOpacity(qreal level) Q_DECL_OVERRIDE;
 
     bool isExposed() const Q_DECL_OVERRIDE;
 
diff --git a/src/plugins/platforms/ios/qioswindow.mm b/src/plugins/platforms/ios/qioswindow.mm
index d8dd875d83..aa33a9b21d 100644
--- a/src/plugins/platforms/ios/qioswindow.mm
+++ b/src/plugins/platforms/ios/qioswindow.mm
@@ -74,6 +74,7 @@ QIOSWindow::QIOSWindow(QWindow *window)
         screen()->availableGeometry().width(), screen()->availableGeometry().height());
 
     setWindowState(window->windowState());
+    setOpacity(window->opacity());
 }
 
 QIOSWindow::~QIOSWindow()
@@ -135,6 +136,11 @@ void QIOSWindow::setVisible(bool visible)
     }
 }
 
+void QIOSWindow::setOpacity(qreal level)
+{
+    m_view.alpha = qBound(0.0, level, 1.0);
+}
+
 void QIOSWindow::setGeometry(const QRect &rect)
 {
     m_normalGeometry = rect;