diff options
Diffstat (limited to 'src/barchart/horizontal/percent/horizontalpercentbarchartitem.cpp')
-rw-r--r-- | src/barchart/horizontal/percent/horizontalpercentbarchartitem.cpp | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/barchart/horizontal/percent/horizontalpercentbarchartitem.cpp b/src/barchart/horizontal/percent/horizontalpercentbarchartitem.cpp new file mode 100644 index 00000000..f2f1a8f3 --- /dev/null +++ b/src/barchart/horizontal/percent/horizontalpercentbarchartitem.cpp @@ -0,0 +1,101 @@ +/**************************************************************************** +** +** 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 barHeight = 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 = rangeX * m_domainMinX + geometry().left(); + for (int set = 0; set < setCount; set++) { + QBarSetPrivate* barSet = m_series->d_func()->barsetAt(set)->d_ptr.data(); + + qreal yPos = -(barSet->pos(category) - m_domainMinY -0.5) * scaleY + m_rect.bottom() - barHeight/2; + + qreal barWidth = barSet->value(category) * percentage * scaleX; + Bar* bar = m_bars.at(itemIndex); + + QRectF rect(xPos, yPos - barHeight, barWidth, barHeight); + layout.append(rect); + bar->setPen(barSet->m_pen); + bar->setBrush(barSet->m_brush); + if (qFuzzyIsNull(barHeight)) { + 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 - barHeight/2 - label->boundingRect().height()/2); + label->setFont(barSet->m_labelFont); + label->setBrush(barSet->m_labelBrush); + + itemIndex++; + xPos += barWidth; + } + } + return layout; +} + +#include "moc_horizontalpercentbarchartitem_p.cpp" + +QTCOMMERCIALCHART_END_NAMESPACE + |