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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: qt-info@nokia.com
**
** This software, including documentation, is protected by copyright
** controlled by Nokia Corporation. You may use this software in
** accordance with the terms and conditions contained in the Qt Phone
** Demo License Agreement.
**
****************************************************************************/
#include "forecastrain.h"
#include "settings.h"
#include "pixmaploader.h"
typedef struct
{
const char * const prefix;
QString name() const { return prefix; }
QPixmap pic() const { return PixmapLoader::getPic(name()); }
private:
} RainItemData;
static const int RainItemCount = 3;
static RainItemData RainItemArray[RainItemCount] = {
{"rain_01"},
{"rain_02"},
{"rain_03"}
};
ForecastRain::ForecastRain(RainType type, QGraphicsItem *parent)
: QGraphicsItem(parent)
, m_animation(this, "progress")
{
for (int i = Light; i <= Heavy; ++i) {
QGraphicsPixmapItem *item = new QGraphicsPixmapItem(RainItemArray[i].pic(), this);
item->setPos(0.0, -20.0);
item->hide();
m_items.append(item);
}
m_animation.setStartValue(0.0);
m_animation.setEndValue(3.0);
m_animation.setDuration(type == Light ? 3000 : type == Medium ? 2000 : 1000);
m_animation.setLoopCount(-1);
}
int ForecastRain::loadImages()
{
for (int i = 0; i < RainItemCount;++i)
PixmapLoader::load(RainItemArray[i].name());
return RainItemCount;
}
void ForecastRain::start()
{
switch (m_animation.state()) {
case QAbstractAnimation::Stopped:
m_animation.start();
break;
case QAbstractAnimation::Paused:
m_animation.resume();
break;
default:
break;
}
}
QRectF ForecastRain::boundingRect () const
{
return m_items.isEmpty() ? QRectF() : m_items[0]->boundingRect();
}
void ForecastRain::paint(QPainter *painter, const QStyleOptionGraphicsItem *opt, QWidget *widget)
{
Q_UNUSED(painter);
Q_UNUSED(opt);
Q_UNUSED(widget);
}
void ForecastRain::stop()
{
if (m_items.count() > 1 && m_animation.state() == QAbstractAnimation::Running)
m_animation.pause();
}
void ForecastRain::setProgress(qreal progress)
{
m_progress = progress;
for (int i = 0; i < m_items.count(); ++i) {
qreal x = progress + i - 1;
x = x < 0 ? 3.0 + x : x > 3.0 ? x - 3.0 : x;
const qreal opacity = x <= 1.0 ? x
: x <= 2.0 ? 2.0 - x
: 0.0;
m_items[i]->setOpacity(opacity);
if ((opacity != 0.0) != m_items[i]->isVisible())
m_items[i]->setVisible(opacity != 0.0);
}
}
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