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/****************************************************************************
**
** Copyright (C) 2002 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "Qt3DSCommonPrecompile.h"
#include "MsgRouter.h"
#include "StudioConst.h"
#include "Core.h"
#include "Doc.h"
#include "Views.h"
#include <QtCore/qcoreapplication.h>
static std::unique_ptr<CMsgRouter> static_theInstance;
//==============================================================================
/**
* Constructor
*/
CMsgRouter::CMsgRouter()
{
qApp->installEventFilter(this);
m_eventType = QEvent::registerEventType();
}
//==============================================================================
/**
* Destructor
*/
CMsgRouter::~CMsgRouter()
{
}
CMsgRouter *CMsgRouter::GetInstance()
{
if (!static_theInstance) {
static_theInstance.reset(new CMsgRouter);
}
return static_theInstance.get();
}
void CMsgRouter::blockMessages()
{
qApp->removeEventFilter(this);
}
//==============================================================================
/**
* Send a command to be executed asynchronously.
*/
void CMsgRouter::SendCommand(CCmd *inCommand, CCore *inCore)
{
SMessageData *theMsgData = new SMessageData(m_eventType);
theMsgData->Method = &CMsgRouter::OnCommand;
theMsgData->Data = inCommand;
theMsgData->Data2 = inCore;
qApp->postEvent(qApp, theMsgData);
}
bool CMsgRouter::eventFilter(QObject *watched, QEvent *event)
{
if (event->type() == m_eventType) {
SMessageData *theMsgData = reinterpret_cast<SMessageData *>(event);
(this->*(theMsgData->Method))(theMsgData);
return true;
}
return false;
}
//==============================================================================
/**
* Windows entry point for processing generic messages.
*/
void CMsgRouter::OnAsyncNotification(SMessageData *inMessageData)
{
try {
CRoutedMessageBase *theRoutedMsg = static_cast<CRoutedMessageBase *>(inMessageData->Data);
if (theRoutedMsg)
theRoutedMsg->Notify();
} catch (...) {
// Catch crashes in case the object is gone
}
}
//==============================================================================
/**
* Main thread processing for processing command execution messages.
*/
void CMsgRouter::OnCommand(SMessageData *inMsgData)
{
CCmd *theCommand = static_cast<CCmd *>(inMsgData->Data);
CCore *theCore = static_cast<CCore *>(inMsgData->Data2);
theCore->ExecuteCommand(theCommand, true);
}
CMsgRouter::SMessageData::SMessageData(int eventType) :
QEvent(static_cast<QEvent::Type>(eventType))
{
}
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