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qt4-x11/demos/mobile/qcamera/main.cpp
2025-08-24 20:55:26 +08:00

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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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****************************************************************************/
#include "cameraexample.h"
#include <QtGui>
#include <QApplication>
#include <QDebug>
// Lock Symbian orientation
#ifdef Q_OS_SYMBIAN
#include <eikenv.h>
#include <eikappui.h>
#include <aknenv.h>
#include <aknappui.h>
#endif
#ifdef Q_OS_SYMBIAN
#include <QSymbianEvent>
#include <w32std.h>
#endif
static const int KGoomMemoryLowEvent = 0x10282DBF;
static const int KGoomMemoryGoodEvent = 0x20026790;
class MyApplication : public QApplication
{
public:
MyApplication( int argc, char** argv ) : QApplication( argc, argv ) {}
#ifdef Q_OS_SYMBIAN
protected:
//! [0]
bool symbianEventFilter( const QSymbianEvent* symbianEvent )
{
const TWsEvent *event = symbianEvent->windowServerEvent();
if ( !event ) {
return false;
}
switch ( event->Type() ) {
// GOOM handling enabled
// http://wiki.forum.nokia.com/index.php/Graphics_memory_handling
case EEventUser: {
TApaSystemEvent* eventData = reinterpret_cast<TApaSystemEvent*>(event->EventData());
if ((*eventData) == EApaSystemEventShutdown) {
eventData++;
if ((*eventData) == KGoomMemoryLowEvent) {
return true;
}
}
break;
}
default:
break;
};
// Always return false so we don't stop
// the event from being processed
return false;
}
//! [0]
#endif
};
int main(int argc, char *argv[])
{
// NOTE: set this value before creating MyApplication instance
// http://doc.trolltech.com/qapplication.html#setGraphicsSystem
QApplication::setGraphicsSystem("raster"); // NOTE: Seems that raster have to be enabled with Nokia N8
MyApplication a(argc, argv);
// Lock Symbian orientation
#ifdef Q_OS_SYMBIAN
CAknAppUi* appUi = dynamic_cast<CAknAppUi*> (CEikonEnv::Static()->AppUi());
TRAP_IGNORE(
if (appUi) {
appUi->SetOrientationL(CAknAppUi::EAppUiOrientationLandscape);
}
);
#endif
CameraExample w;
w.showFullScreen();
return a.exec();
}