horizontalstackedbarchartitem.cpp
103 lines
| 4.2 KiB
| text/x-c
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CppLexer
sauimone
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r1685 | /**************************************************************************** | ||
** | ||||
** 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 "horizontalstackedbarchartitem_p.h" | ||||
#include "qabstractbarseries_p.h" | ||||
#include "qbarset_p.h" | ||||
#include "bar_p.h" | ||||
QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
Michal Klocek
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r2273 | HorizontalStackedBarChartItem::HorizontalStackedBarChartItem(QAbstractBarSeries *series, QGraphicsItem* item) | ||
: AbstractBarChartItem(series, item) | ||||
sauimone
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r1685 | { | ||
} | ||||
Marek Rosa
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r2316 | void HorizontalStackedBarChartItem::initializeLayout() | ||
{ | ||||
qreal categoryCount = m_series->d_func()->categoryCount(); | ||||
qreal setCount = m_series->count(); | ||||
qreal barWidth = m_series->d_func()->barWidth(); | ||||
m_layout.clear(); | ||||
for(int category = 0; category < categoryCount; category++) { | ||||
for (int set = 0; set < setCount; set++) { | ||||
QRectF rect; | ||||
QPointF topLeft; | ||||
QPointF bottomRight; | ||||
if (domain()->type() == AbstractDomain::LogXYDomain || domain()->type() == AbstractDomain::LogXLogYDomain) { | ||||
topLeft = domain()->calculateGeometryPoint(QPointF(domain()->minX(), category - barWidth / 2)); | ||||
bottomRight = domain()->calculateGeometryPoint(QPointF(domain()->minX(), category + barWidth / 2)); | ||||
} else { | ||||
topLeft = domain()->calculateGeometryPoint(QPointF(0, category - barWidth / 2)); | ||||
bottomRight = domain()->calculateGeometryPoint(QPointF(0, category + barWidth / 2)); | ||||
} | ||||
rect.setTopLeft(topLeft); | ||||
rect.setBottomRight(bottomRight); | ||||
m_layout.append(rect.normalized()); | ||||
} | ||||
} | ||||
} | ||||
sauimone
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r1685 | QVector<QRectF> HorizontalStackedBarChartItem::calculateLayout() | ||
{ | ||||
QVector<QRectF> layout; | ||||
// Use temporary qreals for accuracy | ||||
qreal categoryCount = m_series->d_func()->categoryCount(); | ||||
qreal setCount = m_series->count(); | ||||
Marek Rosa
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r2303 | qreal barWidth = m_series->d_func()->barWidth(); | ||
for(int category = 0; category < categoryCount; category++) { | ||||
qreal positiveSum = 0; | ||||
qreal negativeSum = 0; | ||||
sauimone
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r1685 | for (int set = 0; set < setCount; set++) { | ||
Marek Rosa
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r2303 | qreal value = m_series->barSets().at(set)->at(category); | ||
QRectF rect; | ||||
QPointF topLeft; | ||||
QPointF bottomRight; | ||||
if (value < 0) { | ||||
bottomRight = domain()->calculateGeometryPoint(QPointF(value + negativeSum, category - barWidth / 2)); | ||||
Marek Rosa
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r2305 | if (domain()->type() == AbstractDomain::LogXYDomain || domain()->type() == AbstractDomain::LogXLogYDomain) | ||
Marek Rosa
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r2303 | topLeft = domain()->calculateGeometryPoint(QPointF(set ? negativeSum : domain()->minX(), category + barWidth / 2)); | ||
else | ||||
topLeft = domain()->calculateGeometryPoint(QPointF(set ? negativeSum : 0, category + barWidth / 2)); | ||||
negativeSum += value; | ||||
sauimone
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r1897 | } else { | ||
Marek Rosa
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r2303 | bottomRight = domain()->calculateGeometryPoint(QPointF(value + positiveSum, category - barWidth / 2)); | ||
Marek Rosa
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r2305 | if (domain()->type() == AbstractDomain::LogXYDomain || domain()->type() == AbstractDomain::LogXLogYDomain) | ||
Marek Rosa
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r2303 | topLeft = domain()->calculateGeometryPoint(QPointF(set ? positiveSum : domain()->minX(), category + barWidth / 2)); | ||
else | ||||
topLeft = domain()->calculateGeometryPoint(QPointF(set ? positiveSum : 0, category + barWidth / 2)); | ||||
positiveSum += value; | ||||
sauimone
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r1897 | } | ||
Marek Rosa
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r2303 | rect.setTopLeft(topLeft); | ||
rect.setBottomRight(bottomRight); | ||||
Marek Rosa
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r2316 | layout.append(rect.normalized()); | ||
sauimone
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r1685 | } | ||
} | ||||
return layout; | ||||
} | ||||
#include "moc_horizontalstackedbarchartitem_p.cpp" | ||||
QTCOMMERCIALCHART_END_NAMESPACE | ||||