percentbarchartitem.cpp
160 lines
| 5.9 KiB
| text/x-c
|
CppLexer
Titta Heikkala
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r2845 | /****************************************************************************** | ||
Jani Honkonen
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r794 | ** | ||
Titta Heikkala
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r2845 | ** Copyright (C) 2015 The Qt Company Ltd. | ||
** Contact: http://www.qt.io/licensing/ | ||||
Jani Honkonen
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r794 | ** | ||
Titta Heikkala
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r2740 | ** This file is part of the Qt Charts module. | ||
Jani Honkonen
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r794 | ** | ||
Titta Heikkala
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r2845 | ** $QT_BEGIN_LICENSE:COMM$ | ||
Jani Honkonen
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r794 | ** | ||
Titta Heikkala
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r2845 | ** Commercial License Usage | ||
** Licensees holding valid commercial Qt licenses may use this file in | ||||
** accordance with the commercial license agreement provided with the | ||||
** Software or, alternatively, in accordance with the terms contained in | ||||
** a written agreement between you and The Qt Company. For licensing terms | ||||
** and conditions see http://www.qt.io/terms-conditions. For further | ||||
** information use the contact form at http://www.qt.io/contact-us. | ||||
Jani Honkonen
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r794 | ** | ||
Titta Heikkala
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r2845 | ** $QT_END_LICENSE$ | ||
** | ||||
******************************************************************************/ | ||||
Jani Honkonen
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r794 | |||
Titta Heikkala
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r2714 | #include <private/percentbarchartitem_p.h> | ||
#include <private/bar_p.h> | ||||
#include <private/qabstractbarseries_p.h> | ||||
#include <QtCharts/QBarSet> | ||||
#include <private/qbarset_p.h> | ||||
sauimone
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r101 | |||
Titta Heikkala
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r2712 | QT_CHARTS_BEGIN_NAMESPACE | ||
sauimone
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r101 | |||
Michal Klocek
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r2273 | PercentBarChartItem::PercentBarChartItem(QAbstractBarSeries *series, QGraphicsItem* item) : | ||
AbstractBarChartItem(series, item) | ||||
sauimone
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r101 | { | ||
Titta Heikkala
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r2689 | connect(series, SIGNAL(labelsPositionChanged(QAbstractBarSeries::LabelsPosition)), | ||
this, SLOT(handleLabelsPositionChanged())); | ||||
connect(series, SIGNAL(labelsFormatChanged(QString)), this, SLOT(positionLabels())); | ||||
sauimone
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r101 | } | ||
Marek Rosa
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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) { | ||||
Marek Rosa
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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); | ||||
Marek Rosa
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r2316 | } else { | ||
Marek Rosa
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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); | ||||
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()); | ||||
} | ||||
} | ||||
} | ||||
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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 | |||
sauimone
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r1321 | // Use temporary qreals for accuracy | ||
qreal categoryCount = m_series->d_func()->categoryCount(); | ||||
Tero Ahola
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r1462 | qreal setCount = m_series->count(); | ||
Marek Rosa
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r2303 | qreal barWidth = m_series->d_func()->barWidth(); | ||
sauimone
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r1228 | |||
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); | ||||
Marek Rosa
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r2305 | QRectF rect; | ||
Titta Heikkala
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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); | ||||
Marek Rosa
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r2303 | QPointF bottomRight; | ||
Marek Rosa
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r2305 | if (domain()->type() == AbstractDomain::XLogYDomain || domain()->type() == AbstractDomain::LogXLogYDomain) | ||
Titta Heikkala
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r2690 | bottomRight = domain()->calculateGeometryPoint(QPointF(category + barWidth/2, set ? bottomY : domain()->minY()), m_validData); | ||
Jani Honkonen
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r2097 | else | ||
Titta Heikkala
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r2690 | bottomRight = domain()->calculateGeometryPoint(QPointF(category + barWidth/2, set ? bottomY : 0), m_validData); | ||
Marek Rosa
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r2356 | |||
Marek Rosa
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r2303 | rect.setTopLeft(topLeft); | ||
rect.setBottomRight(bottomRight); | ||||
Marek Rosa
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r2316 | layout.append(rect.normalized()); | ||
Titta Heikkala
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r2690 | sum = newSum; | ||
sauimone
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r263 | } | ||
sauimone
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r126 | } | ||
Marek Rosa
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r2305 | return layout; | ||
} | ||||
Marek Rosa
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r2303 | |||
Marek Rosa
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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); | ||||
Titta Heikkala
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r2689 | static const QString valueTag(QLatin1String("@value")); | ||
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(); | ||||
Miikka Heikkinen
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r2539 | QGraphicsTextItem *label = m_labels.at(itemIndex); | ||
Miikka Heikkinen
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r2707 | qreal p = m_series->d_func()->percentageAt(set, category) * 100.0; | ||
QString vString(presenter()->numberToString(p, 'f', 0)); | ||||
Titta Heikkala
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r2689 | QString valueLabel; | ||
Titta Heikkala
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r2814 | if (p == 0) { | ||
label->setVisible(false); | ||||
Titta Heikkala
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r2689 | } else { | ||
Titta Heikkala
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r2816 | label->setVisible(m_series->isLabelsVisible()); | ||
Titta Heikkala
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r2814 | if (m_series->labelsFormat().isEmpty()) { | ||
vString.append(QStringLiteral("%")); | ||||
valueLabel = vString; | ||||
} else { | ||||
valueLabel = m_series->labelsFormat(); | ||||
valueLabel.replace(valueTag, vString); | ||||
} | ||||
Titta Heikkala
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r2689 | } | ||
label->setHtml(valueLabel); | ||||
Marek Rosa
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r2305 | label->setFont(barSet->m_labelFont); | ||
Miikka Heikkinen
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r2539 | label->setDefaultTextColor(barSet->m_labelBrush.color()); | ||
Marek Rosa
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r2305 | label->update(); | ||
itemIndex++; | ||||
} | ||||
} | ||||
sauimone
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r101 | } | ||
Titta Heikkala
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r2689 | void PercentBarChartItem::handleLabelsPositionChanged() | ||
{ | ||||
positionLabels(); | ||||
} | ||||
void PercentBarChartItem::positionLabels() | ||||
{ | ||||
Miikka Heikkinen
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r2802 | positionLabelsVertical(); | ||
Titta Heikkala
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r2689 | } | ||
sauimone
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r666 | #include "moc_percentbarchartitem_p.cpp" | ||
sauimone
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r288 | |||
Titta Heikkala
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r2712 | QT_CHARTS_END_NAMESPACE | ||