percentbarchartitem.cpp
171 lines
| 6.6 KiB
| text/x-c
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CppLexer
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r794 | /**************************************************************************** | ||
** | ||||
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r2688 | ** Copyright (C) 2014 Digia Plc | ||
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r794 | ** All rights reserved. | ||
** For any questions to Digia, please use contact form at http://qt.digia.com | ||||
** | ||||
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r2574 | ** This file is part of the Qt Enterprise Charts Add-on. | ||
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r794 | ** | ||
** $QT_BEGIN_LICENSE$ | ||||
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r2574 | ** Licensees holding valid Qt Enterprise licenses may use this file in | ||
** accordance with the Qt Enterprise License Agreement provided with the | ||||
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r794 | ** 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 "percentbarchartitem_p.h" | ||
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r118 | #include "bar_p.h" | ||
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r1586 | #include "qabstractbarseries_p.h" | ||
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r214 | #include "qbarset.h" | ||
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r1580 | #include "qbarset_p.h" | ||
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r101 | |||
QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
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r2273 | PercentBarChartItem::PercentBarChartItem(QAbstractBarSeries *series, QGraphicsItem* item) : | ||
AbstractBarChartItem(series, item) | ||||
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r101 | { | ||
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r2689 | connect(series, SIGNAL(labelsPositionChanged(QAbstractBarSeries::LabelsPosition)), | ||
this, SLOT(handleLabelsPositionChanged())); | ||||
connect(series, SIGNAL(labelsFormatChanged(QString)), this, SLOT(positionLabels())); | ||||
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r101 | } | ||
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r2316 | void PercentBarChartItem::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::XLogYDomain || domain()->type() == AbstractDomain::LogXLogYDomain) { | ||||
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r2356 | topLeft = domain()->calculateGeometryPoint(QPointF(category - barWidth / 2, domain()->minY()), m_validData); | ||
bottomRight = domain()->calculateGeometryPoint(QPointF(category + barWidth / 2, domain()->minY()), m_validData); | ||||
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r2316 | } else { | ||
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r2356 | topLeft = domain()->calculateGeometryPoint(QPointF(category - barWidth / 2, 0), m_validData); | ||
bottomRight = domain()->calculateGeometryPoint(QPointF(category + barWidth / 2, 0), m_validData); | ||||
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r2316 | } | ||
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r2356 | if (!m_validData) | ||
return; | ||||
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r2316 | rect.setTopLeft(topLeft); | ||
rect.setBottomRight(bottomRight); | ||||
m_layout.append(rect.normalized()); | ||||
} | ||||
} | ||||
} | ||||
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r694 | QVector<QRectF> PercentBarChartItem::calculateLayout() | ||
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r101 | { | ||
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r694 | QVector<QRectF> layout; | ||
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r165 | |||
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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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r2303 | qreal barWidth = m_series->d_func()->barWidth(); | ||
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r1228 | |||
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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); | ||||
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r2305 | QRectF rect; | ||
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r2690 | qreal topY = 0; | ||
qreal newSum = value + sum; | ||||
if (newSum > 0) | ||||
topY = 100 * newSum / categorySum; | ||||
qreal bottomY = 0; | ||||
if (sum > 0) | ||||
bottomY = 100 * sum / categorySum; | ||||
QPointF topLeft = domain()->calculateGeometryPoint(QPointF(category - barWidth/2, topY), m_validData); | ||||
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r2303 | QPointF bottomRight; | ||
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r2305 | if (domain()->type() == AbstractDomain::XLogYDomain || domain()->type() == AbstractDomain::LogXLogYDomain) | ||
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r2690 | bottomRight = domain()->calculateGeometryPoint(QPointF(category + barWidth/2, set ? bottomY : domain()->minY()), m_validData); | ||
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r2097 | else | ||
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r2690 | bottomRight = domain()->calculateGeometryPoint(QPointF(category + barWidth/2, set ? bottomY : 0), m_validData); | ||
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r2356 | |||
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r2303 | rect.setTopLeft(topLeft); | ||
rect.setBottomRight(bottomRight); | ||||
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r2316 | layout.append(rect.normalized()); | ||
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r2690 | sum = newSum; | ||
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r263 | } | ||
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r126 | } | ||
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r2305 | return layout; | ||
} | ||||
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r2303 | |||
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r2305 | void PercentBarChartItem::handleUpdatedBars() | ||
{ | ||||
// Handle changes in pen, brush, labels etc. | ||||
int categoryCount = m_series->d_func()->categoryCount(); | ||||
int setCount = m_series->count(); | ||||
int itemIndex(0); | ||||
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r2689 | static const QString valueTag(QLatin1String("@value")); | ||
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r2303 | |||
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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(); | ||||
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r2539 | QGraphicsTextItem *label = m_labels.at(itemIndex); | ||
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r2305 | int p = m_series->d_func()->percentageAt(set, category) * 100; | ||
QString vString(QString::number(p)); | ||||
vString.truncate(3); | ||||
vString.append("%"); | ||||
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r2689 | QString valueLabel; | ||
if (m_series->labelsFormat().isEmpty()) { | ||||
valueLabel = vString; | ||||
} else { | ||||
valueLabel = m_series->labelsFormat(); | ||||
valueLabel.replace(valueTag, QString::number(barSet->value(category))); | ||||
} | ||||
label->setHtml(valueLabel); | ||||
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r2305 | label->setFont(barSet->m_labelFont); | ||
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r2539 | label->setDefaultTextColor(barSet->m_labelBrush.color()); | ||
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r2305 | label->update(); | ||
itemIndex++; | ||||
} | ||||
} | ||||
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r101 | } | ||
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r2689 | void PercentBarChartItem::handleLabelsPositionChanged() | ||
{ | ||||
positionLabels(); | ||||
} | ||||
void PercentBarChartItem::positionLabels() | ||||
{ | ||||
for (int i = 0; i < m_layout.count(); i++) { | ||||
QGraphicsTextItem *label = m_labels.at(i); | ||||
qreal xPos = m_layout.at(i).center().x() - label->boundingRect().center().x(); | ||||
qreal yPos = 0; | ||||
if (m_series->labelsPosition() == QAbstractBarSeries::LabelsCenter) | ||||
yPos = m_layout.at(i).center().y() - label->boundingRect().center().y(); | ||||
else if (m_series->labelsPosition() == QAbstractBarSeries::LabelsInsideEnd) | ||||
yPos = m_layout.at(i).top(); | ||||
else if (m_series->labelsPosition() == QAbstractBarSeries::LabelsInsideBase) | ||||
yPos = m_layout.at(i).bottom() - label->boundingRect().height(); | ||||
else if (m_series->labelsPosition() == QAbstractBarSeries::LabelsOutsideEnd) | ||||
yPos = m_layout.at(i).top() - label->boundingRect().height(); | ||||
label->setPos(xPos, yPos); | ||||
label->setZValue(zValue() + 1); | ||||
} | ||||
} | ||||
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r666 | #include "moc_percentbarchartitem_p.cpp" | ||
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r288 | |||
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r101 | QTCOMMERCIALCHART_END_NAMESPACE | ||