diff options
Diffstat (limited to 'src/platformsupport/eglconvenience/qeglplatformscreen.cpp')
-rw-r--r-- | src/platformsupport/eglconvenience/qeglplatformscreen.cpp | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/src/platformsupport/eglconvenience/qeglplatformscreen.cpp b/src/platformsupport/eglconvenience/qeglplatformscreen.cpp new file mode 100644 index 0000000000..72e7f6a6df --- /dev/null +++ b/src/platformsupport/eglconvenience/qeglplatformscreen.cpp @@ -0,0 +1,110 @@ +/**************************************************************************** +** +** Copyright (C) 2013 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 "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 |