WaitCursor.cpp

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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2007 QMUL.
    
    This program 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.  See the file
    COPYING included with this distribution for more information.
*/

#include "WaitCursor.h"

#include <QTimer>
#include <QWidget>

WaitCursor::WaitCursor(QWidget *w) :
    m_widget(w),
    m_set(false)
{
    QTimer *t = new QTimer(this);
    connect(t, SIGNAL(timeout()), this, SLOT(timeout()));
    t->start(500);
}

WaitCursor::~WaitCursor()
{
    if (m_set) m_widget->setCursor(m_origCursor);
}

void
WaitCursor::timeout()
{
    m_origCursor = m_widget->cursor();
    m_widget->setCursor(Qt::WaitCursor);
    m_set = true;
}

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