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/***************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (directui@nokia.com)
**
** This file is part of libmeegotouch.
**
** If you have questions regarding the use of this file, please contact
** Nokia at directui@nokia.com.
**
** This library is free software; you can redistribute it and/or
** modify it 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.
**
****************************************************************************/
#include <QPainter>
#include <QPropertyAnimation>
#include "mspinnerview.h"
#include "mspinnerview_p.h"
#include "mprogressindicator.h"
#include "mtheme.h"
MSpinnerViewPrivate::MSpinnerViewPrivate()
: q_ptr(NULL),
controller(NULL),
pieBrush(Qt::NoBrush),
piePen(Qt::NoPen),
positionAnimation(NULL),
angle(0)
{
}
MSpinnerViewPrivate::~MSpinnerViewPrivate()
{
delete positionAnimation;
}
void MSpinnerViewPrivate::resumeAnimation()
{
if (controller->unknownDuration()) {
if (positionAnimation->state() == QPropertyAnimation::Paused)
positionAnimation->resume();
}
}
void MSpinnerViewPrivate::pauseAnimation()
{
if (positionAnimation->state() == QPropertyAnimation::Running)
positionAnimation->pause();
}
MSpinnerView::MSpinnerView(MProgressIndicator *controller) :
MWidgetView(controller),
d_ptr(new MSpinnerViewPrivate)
{
Q_D(MSpinnerView);
d->q_ptr = this;
d->controller = controller;
connect(controller, SIGNAL(visibleChanged()), this, SLOT(visibilityChangedSlot()));
connect(controller, SIGNAL(displayEntered()), this, SLOT(displayEnteredSlot()));
connect(controller, SIGNAL(displayExited()), this, SLOT(displayExitedSlot()));
}
MSpinnerView::~MSpinnerView()
{
delete d_ptr;
}
void MSpinnerView::setupAnimation()
{
Q_D(MSpinnerView);
if (!d->positionAnimation) {
d->positionAnimation = new QPropertyAnimation(this, "angle", 0);
d->positionAnimation->setDuration(style()->period());
d->positionAnimation->setStartValue(0);
d->positionAnimation->setEndValue(360);
d->positionAnimation->setLoopCount(-1);
}
if (model()->unknownDuration()) {
if (d->positionAnimation->state() == QPropertyAnimation::Paused)
d->positionAnimation->resume();
else
d->positionAnimation->start();
} else {
if (d->positionAnimation->state() == QPropertyAnimation::Running)
d->positionAnimation->pause();
}
}
int MSpinnerView::angle() const
{
Q_D(const MSpinnerView);
return d->angle;
}
void MSpinnerView::setAngle(int angle)
{
Q_D(MSpinnerView);
d->angle = angle;
update();
}
void MSpinnerView::updateData(const QList<const char *>& modifications)
{
MWidgetView::updateData(modifications);
foreach(const char * member, modifications) {
if (member == MProgressIndicatorModel::UnknownDuration)
setupAnimation();
}
update();
}
void MSpinnerView::applyStyle()
{
MWidgetView::applyStyle();
Q_D(MSpinnerView);
if (d->positionAnimation)
d->positionAnimation->setDuration(style()->period());
update();
}
void MSpinnerView::setupModel()
{
MWidgetView::setupModel();
setupAnimation();
update();
}
void MSpinnerView::drawContents(QPainter *painter, const QStyleOptionGraphicsItem *option) const
{
Q_UNUSED(option);
Q_D(const MSpinnerView);
bool reverse = (d->controller->layoutDirection() == Qt::RightToLeft);
//drawing background
if (style()->bgPixmap() && !style()->bgPixmap()->isNull())
painter->drawPixmap(0, 0, *style()->bgPixmap());
// calculated values input into rendering
qreal startAngle = 0.0;
qreal endAngle = 0.0;
// calculate values depending on mode
// (from spinner ring is visible that part where is no pie)
if (model()->unknownDuration()) {
if (!reverse) {
startAngle = angle();
endAngle = startAngle + 90;
} else {
startAngle = -angle();
endAngle = startAngle - 90;
}
} else {
if (!reverse) {
startAngle = 0.0;
endAngle = 360 * (model()->value() - model()->minimum()) / (model()->maximum() - model()->minimum());
} else {
startAngle = 0.0;
endAngle = -360 * (model()->value() - model()->minimum()) / (model()->maximum() - model()->minimum());
}
}
//drawing foreground (pie)
if (style()->progressPixmap() && !style()->progressPixmap()->isNull()) {
d->pieBrush.setTexture(*style()->progressPixmap());
painter->setBrush(d->pieBrush);
painter->setPen(d->piePen);
painter->drawPie(QRect(0, 0, style()->progressPixmap()->width(), style()->progressPixmap()->height()),
(90 - endAngle) * 16,
(endAngle - startAngle) * 16);
}
}
void MSpinnerView::visibilityChangedSlot()
{
Q_D(MSpinnerView);
if (d->controller->isVisible() && d->controller->isOnDisplay())
d->resumeAnimation();
else
d->pauseAnimation();
}
void MSpinnerView::displayEnteredSlot()
{
Q_D(MSpinnerView);
if (d->controller->isVisible())
d->resumeAnimation();
}
void MSpinnerView::displayExitedSlot()
{
Q_D(MSpinnerView);
d->pauseAnimation();
}
#include "moc_mspinnerview.cpp"
// bind controller widget and view widget together by registration macro
M_REGISTER_VIEW_NEW(MSpinnerView, MProgressIndicator)
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