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/**************************************************************************
**
** Copyright (C) 2012-2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Installer Framework.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
**************************************************************************/
#include "lazyplaintextedit.h"
#include <QScrollBar>
const int INTERVAL = 20;
LazyPlainTextEdit::LazyPlainTextEdit(QWidget *parent) :
QPlainTextEdit(parent), m_timerId(0)
{
}
void LazyPlainTextEdit::timerEvent(QTimerEvent *event)
{
if (event->timerId() == m_timerId) {
killTimer(m_timerId);
m_timerId = 0;
m_chachedOutput.chop(1); //removes the last \n
if (!m_chachedOutput.isEmpty())
appendPlainText(m_chachedOutput);
horizontalScrollBar()->setValue( 0 );
m_chachedOutput.clear();
}
}
void LazyPlainTextEdit::append(const QString &text)
{
m_chachedOutput.append(text + QLatin1String("\n"));
if (isVisible() && m_timerId == 0)
m_timerId = startTimer(INTERVAL);
}
void LazyPlainTextEdit::clear()
{
if (m_timerId) {
killTimer(m_timerId);
m_timerId = 0;
m_chachedOutput.clear();
}
QPlainTextEdit::clear();
}
void LazyPlainTextEdit::setVisible(bool visible)
{
if (m_timerId) {
killTimer(m_timerId);
m_timerId = 0;
}
if (visible) {
m_timerId = startTimer(INTERVAL);
}
QPlainTextEdit::setVisible(visible);
}
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