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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtWebEngine 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 BACKING_STORE_QT_H
#define BACKING_STORE_QT_H
#include "content/browser/renderer_host/backing_store.h"
#include <QPainter>
#include <QImage>
class BackingStoreQt : public content::BackingStore
{
public:
BackingStoreQt(content::RenderWidgetHost *host, const gfx::Size &size, QWindow* parent);
~BackingStoreQt();
void paintToTarget(QPainter*, const QRectF& rect);
virtual void PaintToBackingStore(content::RenderProcessHost *process, TransportDIB::Id bitmap, const gfx::Rect &bitmap_rect,
const std::vector<gfx::Rect> ©_rects, float scale_factor, const base::Closure &completion_callback,
bool *scheduled_completion_callback) Q_DECL_OVERRIDE;
virtual void ScrollBackingStore(const gfx::Vector2d &delta, const gfx::Rect &clip_rect, const gfx::Size &view_size) Q_DECL_OVERRIDE;
virtual bool CopyFromBackingStore(const gfx::Rect &rect, skia::PlatformBitmap *output) Q_DECL_OVERRIDE;
private:
// Number of physical pixels per view unit. This is 1 or 2 in practice.
float m_deviceScaleFactor;
QImage m_pixelBuffer;
};
#endif // BACKING_STORE_QT_H
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