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/* ============================================================
*
* This file is a part of digiKam project
* http://www.digikam.org
*
* Date : 2004-09-21
* Description : an animated busy widget
*
* Copyright (C) 2004-2005 by Renchi Raju <renchi@pooh.tam.uiuc.edu>
* Copyright (C) 2006-2009 by Gilles Caulier <caulier dot gilles at gmail dot com>
*
* 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, or (at your option)
* any later version.
*
* This program 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.
*
* ============================================================ */
// Qt includes.
#include <qpainter.h>
#include <qpixmap.h>
#include <qpalette.h>
#include <qcolor.h>
#include <qtimer.h>
// Local includes.
#include "animwidget.h"
#include "animwidget.moc"
namespace Digikam
{
class AnimWidgetPriv
{
public:
AnimWidgetPriv()
{
timer = 0;
pos = 0;
}
int pos;
int size;
QTimer *timer;
QPixmap pix;
};
AnimWidget::AnimWidget(QWidget* parent, int size)
: QWidget(parent, 0, WResizeNoErase|WRepaintNoErase)
{
d = new AnimWidgetPriv;
setBackgroundMode(Qt::NoBackground);
d->size = size;
d->pix = QPixmap(d->size, d->size);
setFixedSize(d->size, d->size);
d->timer = new QTimer(this);
connect(d->timer, SIGNAL(timeout()),
this, SLOT(slotTimeout()));
}
AnimWidget::~AnimWidget()
{
delete d;
}
void AnimWidget::start()
{
d->pos = 0;
d->timer->start(100);
}
void AnimWidget::stop()
{
d->pos = 0;
d->timer->stop();
repaint();
}
void AnimWidget::paintEvent(QPaintEvent*)
{
d->pix.fill(colorGroup().background());
QPainter p(&d->pix);
p.translate(d->size/2, d->size/2);
if (d->timer->isActive())
{
p.setPen(QPen(colorGroup().text()));
p.rotate( d->pos );
}
else
{
p.setPen(QPen(colorGroup().dark()));
}
for ( int i=0 ; i<12 ; i++ )
{
p.drawLine(d->size/2-4, 0, d->size/2-2, 0);
p.rotate(30);
}
p.end();
bitBlt(this, 0, 0, &d->pix);
}
void AnimWidget::slotTimeout()
{
d->pos = (d->pos + 10) % 360;
repaint();
}
bool AnimWidget::running() const
{
return d->timer->isActive();
}
} // namespace Digikam
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