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/****************************************************************************
**
** Copyright (C) 2014 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 "qwindowsdirect2dbackingstore.h"
#include "qwindowsdirect2dintegration.h"
#include "qwindowsdirect2dcontext.h"
#include "qwindowsdirect2dpaintdevice.h"
#include "qwindowsdirect2dbitmap.h"
#include "qwindowsdirect2ddevicecontext.h"
#include "qwindowsdirect2dwindow.h"
#include "qwindowscontext.h"
#include <QtGui/QPainter>
#include <QtGui/QWindow>
#include <QtCore/QDebug>
QT_BEGIN_NAMESPACE
/*!
\class QWindowsDirect2DBackingStore
\brief Backing store for windows.
\internal
\ingroup qt-lighthouse-win
*/
static inline QWindowsDirect2DPlatformPixmap *platformPixmap(QPixmap *p)
{
return static_cast<QWindowsDirect2DPlatformPixmap *>(p->handle());
}
static inline QWindowsDirect2DBitmap *bitmap(QPixmap *p)
{
return platformPixmap(p)->bitmap();
}
static inline QWindowsDirect2DWindow *nativeWindow(QWindow *window)
{
return static_cast<QWindowsDirect2DWindow *>(window->handle());
}
QWindowsDirect2DBackingStore::QWindowsDirect2DBackingStore(QWindow *window)
: QPlatformBackingStore(window)
{
}
QWindowsDirect2DBackingStore::~QWindowsDirect2DBackingStore()
{
}
void QWindowsDirect2DBackingStore::beginPaint(const QRegion ®ion)
{
QPixmap *pixmap = nativeWindow(window())->pixmap();
bitmap(pixmap)->deviceContext()->begin();
QPainter painter(pixmap);
QColor clear(Qt::transparent);
painter.setCompositionMode(QPainter::CompositionMode_Source);
foreach (const QRect &r, region.rects())
painter.fillRect(r, clear);
}
void QWindowsDirect2DBackingStore::endPaint()
{
bitmap(nativeWindow(window())->pixmap())->deviceContext()->end();
}
QPaintDevice *QWindowsDirect2DBackingStore::paintDevice()
{
return nativeWindow(window())->pixmap();
}
void QWindowsDirect2DBackingStore::flush(QWindow *targetWindow, const QRegion ®ion, const QPoint &offset)
{
if (targetWindow != window()) {
QSharedPointer<QWindowsDirect2DBitmap> copy(nativeWindow(window())->copyBackBuffer());
nativeWindow(targetWindow)->flush(copy.data(), region, offset);
}
nativeWindow(targetWindow)->present(region);
}
void QWindowsDirect2DBackingStore::resize(const QSize &size, const QRegion ®ion)
{
QPixmap old = nativeWindow(window())->pixmap()->copy();
nativeWindow(window())->resizeSwapChain(size);
QPixmap *newPixmap = nativeWindow(window())->pixmap();
if (!old.isNull()) {
foreach (const QRect &rect, region.rects()) {
platformPixmap(newPixmap)->copy(old.handle(), rect);
}
}
}
QT_END_NAMESPACE
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