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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the plugins 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 QWAYLANDSHMBACKINGSTORE_H
#define QWAYLANDSHMBACKINGSTORE_H
#include <QtWaylandClient/private/qwaylandbuffer_p.h>
#include <qpa/qplatformbackingstore.h>
#include <QtGui/QImage>
#include <qpa/qplatformwindow.h>
QT_BEGIN_NAMESPACE
class QWaylandDisplay;
class QWaylandDecoration;
class QWaylandWindow;
class Q_WAYLAND_CLIENT_EXPORT QWaylandShmBuffer : public QWaylandBuffer {
public:
QWaylandShmBuffer(QWaylandDisplay *display,
const QSize &size, QImage::Format format);
~QWaylandShmBuffer();
QSize size() const { return mImage.size(); }
QImage *image() { return &mImage; }
QImage *imageInsideMargins(const QMargins &margins);
private:
QImage mImage;
struct wl_shm_pool *mShmPool;
QMargins mMargins;
QImage *mMarginsImage;
};
class Q_WAYLAND_CLIENT_EXPORT QWaylandShmBackingStore : public QPlatformBackingStore
{
public:
QWaylandShmBackingStore(QWindow *window);
~QWaylandShmBackingStore();
QPaintDevice *paintDevice();
void flush(QWindow *window, const QRegion ®ion, const QPoint &offset);
void resize(const QSize &size, const QRegion &staticContents);
void resize(const QSize &size);
void beginPaint(const QRegion &);
void endPaint();
QWaylandDecoration *windowDecoration() const;
QMargins windowDecorationMargins() const;
QImage *entireSurface() const;
QImage *contentSurface() const;
void ensureSize();
QWaylandWindow *waylandWindow() const;
void iterateBuffer();
QImage toImage() const Q_DECL_OVERRIDE;
private:
void updateDecorations();
QWaylandDisplay *mDisplay;
QWaylandShmBuffer *mFrontBuffer;
QWaylandShmBuffer *mBackBuffer;
bool mFrontBufferIsDirty;
bool mPainting;
QSize mRequestedSize;
Qt::WindowFlags mCurrentWindowFlags;
static const struct wl_callback_listener frameCallbackListener;
static void done(void *data,
struct wl_callback *callback,
uint32_t time);
struct wl_callback *mFrameCallback;
};
QT_END_NAMESPACE
#endif
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