lyx_mirror/src/frontends/qt4/InGuiThread.cpp
Peter Kümmel 8718c455a6 check also if there is a QApplication instance
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@35981 a592a061-630c-0410-9148-cb99ea01b6c8
2010-11-01 21:32:59 +00:00

59 lines
1.1 KiB
C++

/**
* \file InGuiThread.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Peter Kümmel
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "InGuiThread.h"
#include "frontends/Application.h"
#include <QThread>
#include <QEventLoop>
#include <QApplication>
#include <QMutexLocker>
namespace lyx {
namespace frontend {
IntoGuiThreadMover::IntoGuiThreadMover()
{
}
void IntoGuiThreadMover::callInGuiThread()
{
if (!theApp() || !QApplication::instance() ||
QThread::currentThread() == QApplication::instance()->thread()) {
synchronousFunctionCall();
} else {
moveToThread(QApplication::instance()->thread());
connect(this, SIGNAL(triggerFunctionCall()),
this, SLOT(doFunctionCall()), Qt::QueuedConnection);
QMutexLocker lock(&sync_mutex_);
Q_EMIT triggerFunctionCall();
condition_.wait(&sync_mutex_);
}
}
void IntoGuiThreadMover::doFunctionCall()
{
synchronousFunctionCall();
condition_.wakeOne();
}
} // namespace frontend
} // namespace lyx
#include "moc_InGuiThread.cpp"