Add grabFramebuffer() to QQuickWidget and use it in the autotest

This introduces the need for a grab function in QQuickWidget.
The render control has one already so there is no reason for not exposing
this in QQuickWidget too.

This also means that a relatively meaningful autotest can be now be added.

[ChangeLog][QtQuick] Added QQuickWidget::grabFramebuffer() for capturing the content into a QImage.

Task-number: QTBUG-37589
Change-Id: I5ca8192c0ef8dab4f076a4db27b64aebe3359bb8
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/quickwidgets/qquickwidget.h b/src/quickwidgets/qquickwidget.h
index 4287933063..6c3d63a419 100644
--- a/src/quickwidgets/qquickwidget.h
+++ b/src/quickwidgets/qquickwidget.h
@@ -47,6 +47,7 @@
 #include <QtCore/qurl.h>
 #include <QtQml/qqmldebug.h>
 #include <QtQuickWidgets/qtquickwidgetsglobal.h>
+#include <QtGui/qimage.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -64,6 +65,7 @@ class Q_QUICKWIDGETS_EXPORT QQuickWidget : public QWidget
     Q_PROPERTY(Status status READ status NOTIFY statusChanged)
     Q_PROPERTY(QUrl source READ source WRITE setSource DESIGNABLE true)
     Q_ENUMS(ResizeMode Status)
+
 public:
     explicit QQuickWidget(QWidget *parent = 0);
     QQuickWidget(QQmlEngine* engine, QWidget *parent);
@@ -92,6 +94,8 @@ public:
     void setFormat(const QSurfaceFormat &format);
     QSurfaceFormat format() const;
 
+    QImage grabFramebuffer() const;
+
 public Q_SLOTS:
     void setSource(const QUrl&);
     void setContent(const QUrl& url, QQmlComponent *component, QObject *item);