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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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qcocoabackingstore.h"
#include "qcocoaautoreleasepool.h"
#include <QtCore/qdebug.h>
#include <QtGui/QPainter>
QT_BEGIN_NAMESPACE
QCocoaBackingStore::QCocoaBackingStore(QWindow *window)
: QPlatformBackingStore(window)
{
m_image = new QImage(window->geometry().size(),QImage::Format_ARGB32_Premultiplied);
}
QCocoaBackingStore::~QCocoaBackingStore()
{
delete m_image;
}
QPaintDevice *QCocoaBackingStore::paintDevice()
{
return m_image;
}
void QCocoaBackingStore::flush(QWindow *widget, const QRegion ®ion, const QPoint &offset)
{
Q_UNUSED(widget);
Q_UNUSED(offset);
QCocoaAutoReleasePool pool;
QRect geo = region.boundingRect();
NSRect rect = NSMakeRect(geo.x(), geo.y(), geo.width(), geo.height());
QCocoaWindow *cocoaWindow = static_cast<QCocoaWindow *>(window()->handle());
if (cocoaWindow) {
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_8
if (QSysInfo::QSysInfo::MacintoshVersion >= QSysInfo::MV_10_8) {
// Workaround for malfunctioning displayRect on 10.8 where
// calling it seems to have no effect. Call setImage like
// resize() does.
[cocoaWindow->m_contentView setImage:m_image];
}
#endif
[cocoaWindow->m_contentView displayRect:rect];
}
}
void QCocoaBackingStore::resize(const QSize &size, const QRegion &)
{
delete m_image;
m_image = new QImage(size, QImage::Format_ARGB32_Premultiplied);
QCocoaWindow *cocoaWindow = static_cast<QCocoaWindow *>(window()->handle());
if (cocoaWindow)
[static_cast<QNSView *>(cocoaWindow->m_contentView) setImage:m_image];
}
bool QCocoaBackingStore::scroll(const QRegion &area, int dx, int dy)
{
extern void qt_scrollRectInImage(QImage &img, const QRect &rect, const QPoint &offset);
QPoint qpoint(dx, dy);
const QVector<QRect> qrects = area.rects();
for (int i = 0; i < qrects.count(); ++i) {
const QRect &qrect = qrects.at(i);
qt_scrollRectInImage(*m_image, qrect, qpoint);
}
return true;
}
QT_END_NAMESPACE
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