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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 2007-2008 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 "ProgressDialog.h"
#include <QProgressDialog>
#include <QApplication>
#include <QTimer>
ProgressDialog::ProgressDialog(QString message, bool cancellable,
int timeBeforeShow, QWidget *parent) :
m_showTimer(0),
m_timerElapsed(false),
m_cancelled(false)
{
m_dialog = new QProgressDialog(message, cancellable ? tr("Cancel") : 0,
0, 100, parent);
if (timeBeforeShow > 0) {
m_dialog->hide();
m_showTimer = new QTimer;
connect(m_showTimer, SIGNAL(timeout()), this, SLOT(showTimerElapsed()));
m_showTimer->setSingleShot(true);
m_showTimer->start(timeBeforeShow);
} else {
m_dialog->show();
m_dialog->raise();
m_timerElapsed = true;
}
if (cancellable) {
connect(m_dialog, SIGNAL(canceled()), this, SLOT(canceled()));
}
}
ProgressDialog::~ProgressDialog()
{
delete m_showTimer;
delete m_dialog;
}
bool
ProgressDialog::isDefinite() const
{
return (m_dialog->maximum() > 0);
}
void
ProgressDialog::setDefinite(bool definite)
{
if (definite) m_dialog->setMaximum(100);
else m_dialog->setMaximum(0);
}
void
ProgressDialog::setMessage(QString text)
{
m_dialog->setLabelText(text);
}
void
ProgressDialog::canceled()
{
m_cancelled = true;
emit cancelled();
}
bool
ProgressDialog::wasCancelled() const
{
return m_cancelled;
}
void
ProgressDialog::showTimerElapsed()
{
m_timerElapsed = true;
if (m_dialog->value() > 0) {
emit showing();
m_dialog->show();
}
qApp->processEvents();
}
void
ProgressDialog::setProgress(int percentage)
{
if (percentage > m_dialog->value()) {
m_dialog->setValue(percentage);
if (percentage >= 100 && isDefinite()) {
m_dialog->hide();
} else if (m_timerElapsed && !m_dialog->isVisible()) {
emit showing();
m_dialog->show();
m_dialog->raise();
}
qApp->processEvents();
}
}
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