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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSGCANVAS_H
#define QSGCANVAS_H
#include <QtCore/qmetatype.h>
#include <QtOpenGL/qgl.h>
#include <QtWidgets/qwidget.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
class QSGItem;
class QSGEngine;
class QSGCanvasPrivate;
class QGLFramebufferObject;
class Q_DECLARATIVE_EXPORT QSGCanvas : public QGLWidget
{
Q_OBJECT
Q_DECLARE_PRIVATE(QSGCanvas)
public:
QSGCanvas(QWidget *parent = 0, Qt::WindowFlags f = 0);
QSGCanvas(const QGLFormat &format, QWidget *parent = 0, Qt::WindowFlags f = 0);
virtual ~QSGCanvas();
QSGItem *rootItem() const;
QSGItem *activeFocusItem() const;
QSGItem *mouseGrabberItem() const;
bool sendEvent(QSGItem *, QEvent *);
QVariant inputMethodQuery(Qt::InputMethodQuery query) const;
QSGEngine *sceneGraphEngine() const;
void setVSyncAnimations(bool enabled);
bool vsyncAnimations() const;
QImage grabFrameBuffer();
void setRenderTarget(QGLFramebufferObject *fbo);
QGLFramebufferObject *renderTarget() const;
Q_SIGNALS:
void sceneGraphInitialized();
protected:
QSGCanvas(QSGCanvasPrivate &dd, QWidget *parent = 0, Qt::WindowFlags f = 0);
QSGCanvas(QSGCanvasPrivate &dd, const QGLFormat &format, QWidget *parent = 0, Qt::WindowFlags f = 0);
virtual void paintEvent(QPaintEvent *);
virtual void resizeEvent(QResizeEvent *);
virtual void showEvent(QShowEvent *);
virtual void hideEvent(QHideEvent *);
virtual void focusOutEvent(QFocusEvent *);
virtual void focusInEvent(QFocusEvent *);
virtual bool event(QEvent *);
virtual void keyPressEvent(QKeyEvent *);
virtual void keyReleaseEvent(QKeyEvent *);
virtual void inputMethodEvent(QInputMethodEvent *);
virtual void mousePressEvent(QMouseEvent *);
virtual void mouseReleaseEvent(QMouseEvent *);
virtual void mouseDoubleClickEvent(QMouseEvent *);
virtual void mouseMoveEvent(QMouseEvent *);
#ifndef QT_NO_WHEELEVENT
virtual void wheelEvent(QWheelEvent *);
#endif
private Q_SLOTS:
void sceneGraphChanged();
void maybeUpdate();
private:
friend class QSGItem;
Q_DISABLE_COPY(QSGCanvas)
};
QT_END_NAMESPACE
Q_DECLARE_METATYPE(QSGCanvas *);
QT_END_HEADER
#endif // QSGCANVAS_H
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