Introducing QQuickWidget

Renders into an FBO, and provides a texture that is
composed by the QPA/widget kernel compositor.

Also introducing QQuickRenderControl, which is private
API for now.

Change-Id: I710c16e1506124a17f91e87344496471803a448b
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>

1 files changed, 117 insertions, 0 deletions

diff --git a/src/quickwidgets/qquickwidget_p.h b/src/quickwidgets/qquickwidget_p.h
new file mode 100644
index 0000000000..01f7c3ac91
--- /dev/null
+++ b/src/quickwidgets/qquickwidget_p.h
@@ -0,0 +1,117 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtQuick module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QQUICKWIDGET_P_H
+#define QQUICKWIDGET_P_H
+
+#include "qquickwidget.h"
+#include <private/qwidget_p.h>
+
+#include <QtCore/qurl.h>
+#include <QtCore/qelapsedtimer.h>
+#include <QtCore/qtimer.h>
+#include <QtCore/qpointer.h>
+#include <QtCore/QWeakPointer>
+
+#include <QtQml/qqmlengine.h>
+
+#include "private/qquickitemchangelistener_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QQmlContext;
+class QQmlError;
+class QQuickItem;
+class QQmlComponent;
+class QQuickRenderControl;
+class QOpenGLContext;
+
+class QQuickWidgetPrivate
+        : public QWidgetPrivate,
+          public QQuickItemChangeListener
+{
+    Q_DECLARE_PUBLIC(QQuickWidget)
+public:
+    static QQuickWidgetPrivate* get(QQuickWidget *view) { return view->d_func(); }
+    static const QQuickWidgetPrivate* get(const QQuickWidget *view) { return view->d_func(); }
+
+    QQuickWidgetPrivate();
+    ~QQuickWidgetPrivate();
+
+    void execute();
+    void itemGeometryChanged(QQuickItem *item, const QRectF &newGeometry, const QRectF &oldGeometry);
+    void initResize();
+    void updateSize();
+    void updateFrambufferObjectSize();
+    void setRootObject(QObject *);
+    void renderSceneGraph();
+    void createContext();
+
+    GLuint textureId() const;
+
+    void init(QQmlEngine* e = 0);
+
+    QSize rootObjectSize() const;
+
+    QPointer<QQuickItem> root;
+
+    QUrl source;
+
+    QPointer<QQmlEngine> engine;
+    QQmlComponent *component;
+    QBasicTimer resizetimer;
+    QQuickWindow *offscreenWindow;
+    QQuickRenderControl *renderControl;
+    QOpenGLFramebufferObject *fbo;
+    QOpenGLContext *context;
+
+    QQuickWidget::ResizeMode resizeMode;
+    QSize initialSize;
+    QElapsedTimer frameTimer;
+
+    int updateTimer;
+    bool eventPending;
+    bool updatePending;
+};
+
+QT_END_NAMESPACE
+
+#endif // QQuickWidget_P_H