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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.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qeglcompositor_p.h"
#include "qeglplatformscreen_p.h"
QT_BEGIN_NAMESPACE
/*!
\class QEGLPlatformScreen
\brief Base class for EGL-based platform screen implementations.
\since 5.2
\internal
\ingroup qpa
This class provides a lightweight base for QPlatformScreen
implementations. It covers basic window stack management which is
necessary when compositing multiple raster (widget-based) windows
together into one single native surface.
Reimplementing the virtuals are essential when using
QEGLPlatformBackingStore. The context and the window returned from
these are the ones that are used when compositing the textures
generated from the raster (widget) based windows.
\note It is up to the QEGLPlatformWindow subclasses to use the
functions, like addWindow(), removeWindow(), etc., provided here.
*/
QEGLPlatformScreen::QEGLPlatformScreen(EGLDisplay dpy)
: m_dpy(dpy)
{
}
QEGLPlatformScreen::~QEGLPlatformScreen()
{
QEGLCompositor::destroy();
}
void QEGLPlatformScreen::addWindow(QEGLPlatformWindow *window)
{
if (!m_windows.contains(window)) {
m_windows.append(window);
topWindowChanged(window);
}
}
void QEGLPlatformScreen::removeWindow(QEGLPlatformWindow *window)
{
m_windows.removeOne(window);
if (!m_windows.isEmpty())
topWindowChanged(m_windows.last());
}
void QEGLPlatformScreen::moveToTop(QEGLPlatformWindow *window)
{
m_windows.removeOne(window);
m_windows.append(window);
topWindowChanged(window);
}
void QEGLPlatformScreen::changeWindowIndex(QEGLPlatformWindow *window, int newIdx)
{
int idx = m_windows.indexOf(window);
if (idx != -1 && idx != newIdx) {
m_windows.move(idx, newIdx);
if (newIdx == m_windows.size() - 1)
topWindowChanged(m_windows.last());
}
}
QT_END_NAMESPACE
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