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/***************************************************************************
**
** Copyright (C) 2011 - 2012 Research In Motion
** 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 QQNXWINDOW_H
#define QQNXWINDOW_H
#include <qpa/qplatformwindow.h>
#include "qqnxbuffer.h"
#include <QtGui/QImage>
#include <QtCore/QMutex>
#if !defined(QT_NO_OPENGL)
#include <EGL/egl.h>
#endif
#include <screen/screen.h>
QT_BEGIN_NAMESPACE
// all surfaces double buffered
#define MAX_BUFFER_COUNT 2
#if !defined(QT_NO_OPENGL)
class QQnxGLContext;
#endif
class QQnxScreen;
class QSurfaceFormat;
class QQnxWindow : public QPlatformWindow
{
friend class QQnxScreen;
public:
QQnxWindow(QWindow *window, screen_context_t context);
virtual ~QQnxWindow();
void setGeometry(const QRect &rect);
void setVisible(bool visible);
void setOpacity(qreal level);
bool isExposed() const;
WId winId() const { return (WId)m_window; }
screen_window_t nativeHandle() const { return m_window; }
// Called by QQnxGLContext::createSurface()
QSize requestedBufferSize() const;
void adjustBufferSize();
void setBufferSize(const QSize &size);
QSize bufferSize() const { return m_bufferSize; }
bool hasBuffers() const { return !m_bufferSize.isEmpty(); }
QQnxBuffer &renderBuffer();
void scroll(const QRegion ®ion, int dx, int dy, bool flush=false);
void post(const QRegion &dirty);
void setScreen(QQnxScreen *platformScreen);
void setParent(const QPlatformWindow *window);
void raise();
void lower();
void requestActivateWindow();
void setWindowState(Qt::WindowState state);
void setExposed(bool exposed);
void propagateSizeHints();
void gainedFocus();
QQnxScreen *screen() const { return m_screen; }
const QList<QQnxWindow*>& children() const { return m_childWindows; }
#if !defined(QT_NO_OPENGL)
void setPlatformOpenGLContext(QQnxGLContext *platformOpenGLContext);
QQnxGLContext *platformOpenGLContext() const { return m_platformOpenGLContext; }
#endif
QQnxWindow *findWindow(screen_window_t windowHandle);
void blitFrom(QQnxWindow *sourceWindow, const QPoint &sourceOffset, const QRegion &targetRegion);
void minimize();
#if !defined(QT_NO_OPENGL)
void createEGLSurface();
void destroyEGLSurface();
void swapEGLBuffers();
EGLSurface getSurface();
#endif
private:
QRect setGeometryHelper(const QRect &rect);
void removeFromParent();
void setOffset(const QPoint &setOffset);
void updateVisibility(bool parentVisible);
void updateZorder(int &topZorder);
void applyWindowState();
void fetchBuffers();
// Copies content from the previous buffer (back buffer) to the current buffer (front buffer)
void blitPreviousToCurrent(const QRegion ®ion, int dx, int dy, bool flush=false);
void blitHelper(QQnxBuffer &source, QQnxBuffer &target, const QPoint &sourceOffset,
const QPoint &targetOffset, const QRegion ®ion, bool flush = false);
static int platformWindowFormatToNativeFormat(const QSurfaceFormat &format);
screen_context_t m_screenContext;
screen_window_t m_window;
QSize m_bufferSize;
QQnxBuffer m_buffers[MAX_BUFFER_COUNT];
int m_currentBufferIndex;
int m_previousBufferIndex;
QRegion m_previousDirty;
QRegion m_scrolled;
QQnxScreen *m_screen;
QList<QQnxWindow*> m_childWindows;
QQnxWindow *m_parentWindow;
bool m_visible;
bool m_exposed;
QRect m_unmaximizedGeometry;
Qt::WindowState m_windowState;
// This mutex is used to protect access to the m_requestedBufferSize
// member. This member is used in conjunction with QQnxGLContext::requestNewSurface()
// to coordinate recreating the EGL surface which involves destroying any
// existing EGL surface; resizing the native window buffers; and creating a new
// EGL surface. All of this has to be done from the thread that is calling
// QQnxGLContext::makeCurrent()
mutable QMutex m_mutex;
#if !defined(QT_NO_OPENGL)
QQnxGLContext *m_platformOpenGLContext;
QAtomicInt m_newSurfaceRequested;
EGLSurface m_eglSurface;
#endif
QSize m_requestedBufferSize;
};
QT_END_NAMESPACE
#endif // QQNXWINDOW_H
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