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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the Qt Commercial Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
**
****************************************************************************/
#include "percentbarchartitem_p.h"
#include "bar_p.h"
#include "qabstractbarseries_p.h"
#include "qbarset.h"
#include "qbarset_p.h"
QTCOMMERCIALCHART_BEGIN_NAMESPACE
PercentBarChartItem::PercentBarChartItem(QAbstractBarSeries *series, QGraphicsItem* item) :
AbstractBarChartItem(series, item)
{
}
QVector<QRectF> PercentBarChartItem::calculateLayout()
{
QVector<QRectF> layout;
// Use temporary qreals for accuracy
qreal categoryCount = m_series->d_func()->categoryCount();
qreal setCount = m_series->count();
qreal barWidth = m_series->d_func()->barWidth();
for(int category = 0; category < categoryCount; category++) {
qreal sum = 0;
qreal categorySum = m_series->d_func()->categorySum(category);
for (int set = 0; set < setCount; set++) {
qreal value = m_series->barSets().at(set)->at(category);
QRectF rect;
QPointF topLeft = domain()->calculateGeometryPoint(QPointF(category - barWidth/2, 100 * (value + sum)/categorySum));
QPointF bottomRight;
if (domain()->type() == AbstractDomain::XLogYDomain || domain()->type() == AbstractDomain::LogXLogYDomain)
bottomRight = domain()->calculateGeometryPoint(QPointF(category + barWidth/2, set ? 100 * sum/categorySum : domain()->minY()));
else
bottomRight = domain()->calculateGeometryPoint(QPointF(category + barWidth/2, set ? 100 * sum/categorySum : 0));
rect.setTopLeft(topLeft);
rect.setBottomRight(bottomRight);
layout.append(rect);
sum +=value;
}
}
return layout;
}
void PercentBarChartItem::handleUpdatedBars()
{
// Handle changes in pen, brush, labels etc.
int categoryCount = m_series->d_func()->categoryCount();
int setCount = m_series->count();
int itemIndex(0);
for (int category = 0; category < categoryCount; category++) {
for (int set = 0; set < setCount; set++) {
QBarSetPrivate *barSet = m_series->d_func()->barsetAt(set)->d_ptr.data();
Bar *bar = m_bars.at(itemIndex);
bar->setPen(barSet->m_pen);
bar->setBrush(barSet->m_brush);
bar->update();
QGraphicsSimpleTextItem *label = m_labels.at(itemIndex);
int p = m_series->d_func()->percentageAt(set, category) * 100;
QString vString(QString::number(p));
vString.truncate(3);
vString.append("%");
label->setText(vString);
label->setFont(barSet->m_labelFont);
label->setBrush(barSet->m_labelBrush);
label->update();
itemIndex++;
}
}
}
#include "moc_percentbarchartitem_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE
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