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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 "horizontalpercentbarchartitem_p.h"
#include "qabstractbarseries_p.h"
#include "qbarset_p.h"
#include "bar_p.h"
QTCOMMERCIALCHART_BEGIN_NAMESPACE
HorizontalPercentBarChartItem::HorizontalPercentBarChartItem(QAbstractBarSeries *series, ChartPresenter *presenter)
: AbstractBarChartItem(series, presenter)
{
}
QVector<QRectF> HorizontalPercentBarChartItem::calculateLayout()
{
QVector<QRectF> layout;
// Use temporary qreals for accuracy
qreal categoryCount = m_series->d_func()->categoryCount();
qreal setCount = m_series->count();
bool barsVisible = m_series->isVisible();
// Domain:
qreal width = geometry().width();
qreal height = geometry().height();
qreal rangeY = m_domainMaxY - m_domainMinY;
qreal rangeX = m_domainMaxX - m_domainMinX;
qreal scaleY = (height / rangeY);
qreal scaleX = (width / rangeX);
qreal rectHeight = scaleY * m_series->d_func()->barWidth(); // On horizontal chart barWidth of the barseries means height of the rect.
int itemIndex(0);
for (int category = 0; category < categoryCount; category++) {
qreal colSum = m_series->d_func()->categorySum(category);
qreal percentage = (100 / colSum);
qreal xPos = -scaleX * m_domainMinX + geometry().left();
for (int set = 0; set < setCount; set++) {
QBarSetPrivate *barSet = m_series->d_func()->barsetAt(set)->d_ptr.data();
qreal yPos = (m_domainMinY + 0.5 - barSet->pos(category)) * scaleY + geometry().bottom() - rectHeight / 2;
qreal rectWidth = barSet->value(category) * percentage * scaleX;
Bar *bar = m_bars.at(itemIndex);
QRectF rect(xPos, yPos - rectHeight, rectWidth, rectHeight);
layout.append(rect);
bar->setPen(barSet->m_pen);
bar->setBrush(barSet->m_brush);
if (qFuzzyIsNull(rectHeight))
bar->setVisible(false);
else
bar->setVisible(barsVisible);
QGraphicsSimpleTextItem *label = m_labels.at(itemIndex);
if (!qFuzzyIsNull(m_series->d_func()->valueAt(set, category))) {
int p = m_series->d_func()->percentageAt(set, category) * 100;
QString vString(QString::number(p));
vString.truncate(3);
vString.append("%");
label->setText(vString);
} else {
label->setText(QString(""));
}
label->setPos(xPos + (rect.width() / 2 - label->boundingRect().width() / 2),
yPos - rectHeight / 2 - label->boundingRect().height() / 2);
label->setFont(barSet->m_labelFont);
label->setBrush(barSet->m_labelBrush);
itemIndex++;
xPos += rectWidth;
}
}
return layout;
}
#include "moc_horizontalpercentbarchartitem_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE
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