stackedbarchartitem.cpp
87 lines
| 3.0 KiB
| text/x-c
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CppLexer
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r794 | /**************************************************************************** | ||
** | ||||
** 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 | ||||
** $QT_END_LICENSE$ | ||||
** | ||||
****************************************************************************/ | ||||
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r666 | #include "stackedbarchartitem_p.h" | ||
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r118 | #include "bar_p.h" | ||
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r962 | #include "qbarset_p.h" | ||
#include "qbarseries_p.h" | ||||
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r214 | #include "qbarset.h" | ||
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r96 | |||
QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
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r677 | StackedBarChartItem::StackedBarChartItem(QBarSeries *series, ChartPresenter *presenter) : | ||
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r737 | BarChartItem(series, presenter) | ||
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r96 | { | ||
} | ||||
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r694 | QVector<QRectF> StackedBarChartItem::calculateLayout() | ||
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r96 | { | ||
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r694 | QVector<QRectF> layout; | ||
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r839 | // Use temporary qreals for accurancy | ||
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r1228 | qreal categoryCount = m_series->categoryCount(); | ||
qreal setCount = m_series->barsetCount(); | ||||
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r679 | |||
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r674 | // Domain: | ||
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r679 | qreal width = geometry().width(); | ||
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r1228 | 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 categoryWidth = width / categoryCount; | ||||
qreal barWidth = categoryWidth / setCount - categoryWidth * m_series->d_func()->barMargin(); | ||||
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r679 | |||
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r473 | int itemIndex(0); | ||
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r1228 | for (int category = 0; category < categoryCount; category++) { | ||
qreal yPos = height + rangeY * m_domainMinY + geometry().topLeft().y(); | ||||
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r763 | for (int set=0; set < m_series->barsetCount(); set++) { | ||
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r962 | QBarSet* barSet = m_series->d_func()->barsetAt(set); | ||
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r817 | |||
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r1228 | qreal xPos = (barSet->at(category).x() - m_domainMinX) * scaleX + m_rect.left() - barWidth/2; | ||
qreal barHeight = barSet->at(category).y() * scaleY; | ||||
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r763 | Bar* bar = m_bars.at(itemIndex); | ||
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r817 | bar->setPen(barSet->pen()); | ||
bar->setBrush(barSet->brush()); | ||||
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r737 | QRectF rect(xPos, yPos-barHeight, barWidth, barHeight); | ||
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r694 | layout.append(rect); | ||
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r654 | |||
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r1246 | QGraphicsSimpleTextItem* label = m_labels.at(itemIndex); | ||
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r263 | |||
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r1167 | if (!qFuzzyIsNull(barSet->at(category).y())) { | ||
label->setText(QString::number(barSet->at(category).y())); | ||||
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r276 | } else { | ||
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r820 | label->setText(QString("")); | ||
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r276 | } | ||
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r263 | |||
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r820 | label->setPos(xPos + (rect.width()/2 - label->boundingRect().width()/2) | ||
,yPos - barHeight/2 - label->boundingRect().height()/2); | ||||
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r839 | label->setFont(barSet->labelFont()); | ||
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r263 | itemIndex++; | ||
yPos -= barHeight; | ||||
} | ||||
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r119 | } | ||
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r817 | |||
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r694 | return layout; | ||
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r96 | } | ||
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r666 | #include "moc_stackedbarchartitem_p.cpp" | ||
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r288 | |||
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r96 | QTCOMMERCIALCHART_END_NAMESPACE | ||