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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 "timelinemenu.h"
#include <QApplication>
#include <QDate>
#include <QGraphicsLinearLayout>
#include <QGraphicsSceneMouseEvent>
#include "pdata.h"
#include "button.h"
#include "dataresource.h"
#include "pixmaploader.h"
#include "coingraphicwidget.h"
TimelineMenu::TimelineMenu()
: QGraphicsWidget(),
contentsWidget(0)
{
setFlag(QGraphicsItem::ItemHasNoContents);
setFlag(QGraphicsItem::ItemClipsChildrenToShape);
QGraphicsPixmapItem *background =
new QGraphicsPixmapItem(PixmapLoader::pixmap(":/bg.png"), this);
background->setPos(0, 0);
setContentsMargins(0, 0, 0, 0);
// This widget has the contents, that we will scroll on the
// screen. TimelineMenu will clip it to the correct region.
contentsWidget = new QGraphicsWidget(this);
contentsWidget->setContentsMargins(0, 0, 0, 0);
QGraphicsLinearLayout *l = new QGraphicsLinearLayout(Qt::Horizontal);
l->setContentsMargins(0, 0, 0, 0);
l->setSpacing(0);
contentsWidget->setLayout(l);
// This variable defines the area of the screen (counting from the
// bottom) that is going to be used to drag the timeline itself
draggingHeight = Resource::intValue("Widgets/TimelineMenu.draggingHeight");
isDragging = false;
updateMaxValue();
db = qApp->property("settings").value<PData*>();
connect(db, SIGNAL(valueAdded(const QString &)),
SLOT(updateGraph(const QString &)));
coin = new QPixmap(QLatin1String(":/coin.png"));
fillWidget(l);
}
TimelineMenu::~TimelineMenu()
{
delete coin;
}
qreal TimelineMenu::draggableHeight() const
{
return draggingHeight;
}
void TimelineMenu::updateGraph(const QString &group)
{
Q_UNUSED(group);
updateMaxValue();
for (int i = 0; i < allCoins.size(); i++) {
CoinGraphicWidget *coins = allCoins.at(i);
coins->updateValue(i + 1, overallSum, maxValue);
}
}
void TimelineMenu::updateMaxValue()
{
PData *db = qApp->property("settings").value<PData*>();
const QDate &date = QDate::currentDate();
db->beginGroup(QLatin1String("date"));
db->beginGroup(QString::number(date.year()));
const QStringList &keys = db->allKeys();
qreal sum = 0;
QList<qreal> values;
foreach (const QString &key, keys) {
const qreal value = db->getValue(key);
sum += value;
values << value;
}
qSort(values.begin(), values.end());
maxValue = values.size() > 0 ? values.last() : 0;
db->endGroup();
db->endGroup();
overallSum = sum;
}
void TimelineMenu::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
if (event->pos().y() <= (size().height() - draggingHeight))
event->ignore();
else
isDragging = true;
}
void TimelineMenu::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
{
if (isDragging) {
qreal x = contentsWidget->x() + event->pos().x() - event->lastPos().x();
contentsWidget->setX(qBound<qreal>(-contentsWidget->size().width()
+ size().width(), x, 0));
}
}
void TimelineMenu::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
Q_UNUSED(event);
isDragging = false;
}
void TimelineMenu::resizeEvent(QGraphicsSceneResizeEvent *event)
{
QGraphicsWidget::resizeEvent(event);
if (contentsWidget)
contentsWidget->resize(contentsWidget->size().width(), size().height());
}
void TimelineMenu::fillWidget(QGraphicsLinearLayout *l)
{
Button *button;
CoinGraphicWidget *coins;
QGraphicsLinearLayout *vl;
QFont buttonFont("Nokia Sans");
buttonFont.setPixelSize(Resource::intValue("Widgets/MonthButton.fontSize"));
int year = QDate::currentDate().year();
for (int i = 1; i <= 12; i++) {
coins = new CoinGraphicWidget(i, overallSum, maxValue, coin);
allCoins.append(coins);
button = new Button(PixmapLoader::pixmap(":/btn_timeline_off.png"));
button->setFont(buttonFont);
button->setAcceptedMouseButtons(Qt::NoButton);
button->setText(QDate(year, i, 1).toString("MMM/yy"));
button->setCacheMode(QGraphicsItem::ItemCoordinateCache);
vl = new QGraphicsLinearLayout(Qt::Vertical);
vl->setSpacing(0);
vl->setContentsMargins(0, 0, 0, 0);
vl->addItem(coins);
vl->setAlignment(coins, Qt::AlignHCenter);
vl->addItem(button);
l->addItem(vl);
l->setAlignment(vl, Qt::AlignBottom);
}
}
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