groupedbarchartitem.cpp
92 lines
| 3.2 KiB
| text/x-c
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CppLexer
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r1167 | /**************************************************************************** | ||
** | ||||
** 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 "groupedbarchartitem_p.h" | ||||
#include "bar_p.h" | ||||
#include "qbarset_p.h" | ||||
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r1586 | #include "qabstractbarseries_p.h" | ||
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r1167 | #include "qbarset.h" | ||
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r1580 | #include "qbarset_p.h" | ||
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r1167 | |||
QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
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r1584 | GroupedBarChartItem::GroupedBarChartItem(QAbstractBarSeries *series, ChartPresenter *presenter) : | ||
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r1167 | BarChartItem(series, presenter) | ||
{ | ||||
} | ||||
QVector<QRectF> GroupedBarChartItem::calculateLayout() | ||||
{ | ||||
QVector<QRectF> layout; | ||||
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r1321 | // Use temporary qreals for accuracy | ||
qreal categoryCount = m_series->d_func()->categoryCount(); | ||||
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r1462 | qreal setCount = m_series->count(); | ||
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r1322 | bool barsVisible = m_series->isVisible(); | ||
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r1167 | |||
// Domain: | ||||
qreal width = geometry().width(); | ||||
qreal height = geometry().height(); | ||||
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r1228 | qreal rangeY = m_domainMaxY - m_domainMinY; | ||
qreal rangeX = m_domainMaxX - m_domainMinX; | ||||
qreal scaleY = (height / rangeY); | ||||
qreal scaleX = (width / rangeX); | ||||
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r1425 | qreal barWidth = (scaleX / setCount) * m_series->d_func()->barWidth(); | ||
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r1167 | |||
int itemIndex(0); | ||||
for (int category = 0; category < categoryCount; category++) { | ||||
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r1228 | qreal yPos = height + scaleY * m_domainMinY + geometry().topLeft().y(); | ||
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r1167 | for (int set = 0; set < setCount; set++) { | ||
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r1580 | QBarSetPrivate* barSet = m_series->d_func()->barsetAt(set)->d_ptr.data(); | ||
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r1167 | |||
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r1580 | qreal xPos = (barSet->m_values.at(category).x() - m_domainMinX) * scaleX + m_rect.left(); | ||
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r1228 | xPos -= setCount*barWidth/2; | ||
xPos += set*barWidth; | ||||
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r1580 | qreal barHeight = barSet->m_values.at(category).y() * scaleY; | ||
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r1167 | Bar* bar = m_bars.at(itemIndex); | ||
QRectF rect(xPos, yPos - barHeight, barWidth, barHeight); | ||||
layout.append(rect); | ||||
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r1580 | bar->setPen(barSet->m_pen); | ||
bar->setBrush(barSet->m_brush); | ||||
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r1322 | bar->setVisible(barsVisible); | ||
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r1167 | |||
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r1246 | QGraphicsSimpleTextItem* label = m_labels.at(itemIndex); | ||
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r1167 | |||
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r1580 | if (!qFuzzyIsNull(barSet->m_values.at(category).y())) { | ||
label->setText(QString::number(barSet->m_values.at(category).y())); | ||||
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r1167 | } else { | ||
label->setText(QString("")); | ||||
} | ||||
label->setPos(xPos + (rect.width()/2 - label->boundingRect().width()/2) | ||||
,yPos - barHeight/2 - label->boundingRect().height()/2); | ||||
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r1580 | label->setFont(barSet->m_labelFont); | ||
label->setBrush(barSet->m_labelBrush); | ||||
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r1167 | |||
itemIndex++; | ||||
} | ||||
} | ||||
return layout; | ||||
} | ||||
#include "moc_groupedbarchartitem_p.cpp" | ||||
QTCOMMERCIALCHART_END_NAMESPACE | ||||