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/********************************************************************
* Copyright (C) 2005 Piotr Pszczolkowski
*-------------------------------------------------------------------
* This file is part of BsC (Beesoft Commander).
*
* BsC is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* BsC is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with BsC; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*******************************************************************/
/*------- include files:
--------------------------------------------------------------------*/
#include "Busy.h"
#include <qevent.h>
#include <qapplication.h>
#include <qeventloop.h>
#include <qcursor.h>
/*------- local variables:
--------------------------------------------------------------------*/
Busy* Busy::d_instance = 0;
//********************************************************************
// CBusy
//********************************************************************
Busy::Busy()
: QObject( 0 )
, d_isOn( FALSE )
{}
// end of CBusy
//********************************************************************
// set_busy
//********************************************************************
void Busy::set_busy( bool in_on )
{
if( 0 == d_instance ) {
d_instance = new Busy();
}
if( in_on != d_instance->d_isOn ) {
if( TRUE == in_on ) {
qApp->installEventFilter( d_instance );
QApplication::setOverrideCursor( Qt::WaitCursor );
QApplication::eventLoop()->processEvents( QEventLoop::AllEvents );
}
else {
qApp->removeEventFilter( d_instance );
QApplication::restoreOverrideCursor();
QApplication::eventLoop()->processEvents( QEventLoop::AllEvents );
}
d_instance->d_isOn = in_on;
}
}
// end of set_busy
//********************************************************************
// eventFilter
//********************************************************************
bool Busy::eventFilter( QObject*, QEvent* e )
{
const QEvent::Type type = e->type();
if(( QEvent::KeyPress == type ) || ( QEvent::KeyRelease == type )) {
const QKeyEvent* const ke = dynamic_cast<QKeyEvent*>( e );
return ( Qt::Key_Escape == ke->key() ) ? FALSE : TRUE;
}
return ( type == QEvent::MouseButtonPress || type == QEvent::MouseButtonRelease || type == QEvent::MouseButtonDblClick );
}
// end of eventFilter
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