horizontalpercentbarchartitem.cpp
128 lines
| 4.9 KiB
| text/x-c
|
CppLexer
sauimone
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r1688 | /**************************************************************************** | ||
** | ||||
** 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 | ||||
Michal Klocek
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r2273 | HorizontalPercentBarChartItem::HorizontalPercentBarChartItem(QAbstractBarSeries *series, QGraphicsItem* item) | ||
: AbstractBarChartItem(series, item) | ||||
sauimone
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r1688 | { | ||
} | ||||
Marek Rosa
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r2316 | void HorizontalPercentBarChartItem::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) { | ||||
Marek Rosa
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r2356 | topLeft = domain()->calculateGeometryPoint(QPointF(domain()->minX(), category - barWidth / 2), m_validData); | ||
bottomRight = domain()->calculateGeometryPoint(QPointF(domain()->minX(), category + barWidth / 2), m_validData); | ||||
Marek Rosa
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r2316 | } else { | ||
Marek Rosa
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r2356 | topLeft = domain()->calculateGeometryPoint(QPointF(0, category - barWidth / 2), m_validData); | ||
bottomRight = domain()->calculateGeometryPoint(QPointF(0, category + barWidth / 2), m_validData); | ||||
Marek Rosa
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r2316 | } | ||
Marek Rosa
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r2356 | if (!m_validData) | ||
return; | ||||
Marek Rosa
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r2316 | rect.setTopLeft(topLeft); | ||
rect.setBottomRight(bottomRight); | ||||
m_layout.append(rect.normalized()); | ||||
} | ||||
} | ||||
} | ||||
sauimone
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r1688 | QVector<QRectF> HorizontalPercentBarChartItem::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(); | ||
sauimone
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r1688 | |||
Marek Rosa
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r2303 | for(int category = 0; category < categoryCount; category++) { | ||
qreal sum = 0; | ||||
qreal categorySum = m_series->d_func()->categorySum(category); | ||||
for (int set = 0; set < setCount; set++) { | ||||
qreal value = m_series->barSets().at(set)->at(category); | ||||
QRectF rect; | ||||
QPointF topLeft; | ||||
Marek Rosa
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r2305 | if (domain()->type() == AbstractDomain::LogXYDomain || domain()->type() == AbstractDomain::LogXLogYDomain) | ||
Marek Rosa
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r2356 | topLeft = domain()->calculateGeometryPoint(QPointF(set ? 100 * sum/categorySum : domain()->minX(), category - barWidth/2), m_validData); | ||
Jani Honkonen
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r2097 | else | ||
Marek Rosa
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r2356 | topLeft = domain()->calculateGeometryPoint(QPointF(set ? 100 * sum/categorySum : 0, category - barWidth/2), m_validData); | ||
QPointF bottomRight = domain()->calculateGeometryPoint(QPointF(100 * (value + sum)/categorySum, category + barWidth/2), m_validData); | ||||
if (!m_validData) | ||||
return QVector<QRectF>(); | ||||
Marek Rosa
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r2303 | rect.setTopLeft(topLeft); | ||
rect.setBottomRight(bottomRight); | ||||
Marek Rosa
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r2316 | layout.append(rect.normalized()); | ||
Marek Rosa
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r2303 | sum +=value; | ||
sauimone
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r1688 | } | ||
} | ||||
Marek Rosa
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r2305 | return layout; | ||
} | ||||
Marek Rosa
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r2303 | |||
Marek Rosa
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r2305 | void HorizontalPercentBarChartItem::handleUpdatedBars() | ||
{ | ||||
// Handle changes in pen, brush, labels etc. | ||||
int categoryCount = m_series->d_func()->categoryCount(); | ||||
int setCount = m_series->count(); | ||||
int itemIndex(0); | ||||
Marek Rosa
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r2303 | |||
Marek Rosa
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r2305 | for (int category = 0; category < categoryCount; category++) { | ||
for (int set = 0; set < setCount; set++) { | ||||
QBarSetPrivate *barSet = m_series->d_func()->barsetAt(set)->d_ptr.data(); | ||||
Bar *bar = m_bars.at(itemIndex); | ||||
bar->setPen(barSet->m_pen); | ||||
bar->setBrush(barSet->m_brush); | ||||
bar->update(); | ||||
QGraphicsSimpleTextItem *label = m_labels.at(itemIndex); | ||||
int p = m_series->d_func()->percentageAt(set, category) * 100; | ||||
QString vString(QString::number(p)); | ||||
vString.truncate(3); | ||||
vString.append("%"); | ||||
label->setText(vString); | ||||
label->setFont(barSet->m_labelFont); | ||||
label->setBrush(barSet->m_labelBrush); | ||||
label->update(); | ||||
itemIndex++; | ||||
} | ||||
} | ||||
sauimone
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r1688 | } | ||
#include "moc_horizontalpercentbarchartitem_p.cpp" | ||||
QTCOMMERCIALCHART_END_NAMESPACE | ||||