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/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.digia.com
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**
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** This file is part of the Qt Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.digia.com
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "percentbarchartitem_p.h"
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#include "bar_p.h"
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#include "barlabel_p.h"
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#include "qbarset.h"
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#include <QDebug>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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PercentBarChartItem::PercentBarChartItem(QBarSeries *series, ChartPresenter *presenter) :
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BarChartItem(series, presenter)
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{
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}
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QVector<QRectF> PercentBarChartItem::calculateLayout()
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{
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QVector<QRectF> layout;
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// Use temporary qreals for accurancy
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qreal width = geometry().width();
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qreal height = geometry().height();
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qreal categoryCount = m_series->categoryCount();
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qreal barWidth = width / (m_series->categoryCount() * 2);
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qreal xStep = width / categoryCount;
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qreal xPos = xStep / 2 - barWidth / 2;
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qreal range = m_domainMaxY - m_domainMinY;
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qreal domainScale = (height / range);
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int itemIndex(0);
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for (int category = 0; category < categoryCount; category++) {
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qreal colSum = m_series->categorySum(category);
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qreal percentage = (100 / colSum);
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qreal yPos = height + domainScale * m_domainMinY;
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for (int set=0; set < m_series->barsetCount(); set++) {
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QBarSet* barSet = m_series->barsetAt(set);
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qreal barHeight = barSet->valueAt(category) * percentage * domainScale;
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Bar* bar = m_bars.at(itemIndex);
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bar->setPen(barSet->pen());
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bar->setBrush(barSet->brush());
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QRectF rect(xPos, yPos-barHeight, barWidth, barHeight);
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layout.append(rect);
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BarLabel* label = m_labels.at(itemIndex);
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if (!qFuzzyIsNull(m_series->valueAt(set,category))) {
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int p = m_series->percentageAt(set,category) * 100;
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QString vString(QString::number(p));
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vString.truncate(3);
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vString.append("%");
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label->setText(vString);
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} else {
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label->setText(QString(""));
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}
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label->setPos(xPos + (rect.width()/2 - label->boundingRect().width()/2)
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,yPos - barHeight/2 - label->boundingRect().height()/2);
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label->setFont(barSet->labelFont());
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itemIndex++;
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yPos -= barHeight;
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}
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xPos += xStep;
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}
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return layout;
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}
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#include "moc_percentbarchartitem_p.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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