horizontalpercentbarchartitem.cpp
154 lines
| 6.1 KiB
| text/x-c
|
CppLexer
|
r0 | /**************************************************************************** | ||
** | ||||
** Copyright (C) 2016 The Qt Company Ltd. | ||||
** Contact: https://www.qt.io/licensing/ | ||||
** | ||||
** This file is part of the Qt Charts module of the Qt Toolkit. | ||||
** | ||||
** $QT_BEGIN_LICENSE:GPL$ | ||||
** 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 https://www.qt.io/terms-conditions. For further | ||||
** information use the contact form at https://www.qt.io/contact-us. | ||||
** | ||||
** GNU General Public License Usage | ||||
** Alternatively, this file may be used under the terms of the GNU | ||||
** General Public License version 3 or (at your option) any later version | ||||
** approved by the KDE Free Qt Foundation. The licenses are as published by | ||||
** the Free Software Foundation and appearing in the file LICENSE.GPL3 | ||||
** included in the packaging of this file. Please review the following | ||||
** information to ensure the GNU General Public License requirements will | ||||
** be met: https://www.gnu.org/licenses/gpl-3.0.html. | ||||
** | ||||
** $QT_END_LICENSE$ | ||||
** | ||||
****************************************************************************/ | ||||
#include <private/horizontalpercentbarchartitem_p.h> | ||||
#include <private/qabstractbarseries_p.h> | ||||
#include <private/qbarset_p.h> | ||||
#include <private/bar_p.h> | ||||
QT_CHARTS_BEGIN_NAMESPACE | ||||
HorizontalPercentBarChartItem::HorizontalPercentBarChartItem(QAbstractBarSeries *series, QGraphicsItem* item) | ||||
: AbstractBarChartItem(series, item) | ||||
{ | ||||
} | ||||
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) { | ||||
topLeft = domain()->calculateGeometryPoint(QPointF(domain()->minX(), category - barWidth / 2), m_validData); | ||||
bottomRight = domain()->calculateGeometryPoint(QPointF(domain()->minX(), category + barWidth / 2), m_validData); | ||||
} else { | ||||
topLeft = domain()->calculateGeometryPoint(QPointF(0, category - barWidth / 2), m_validData); | ||||
bottomRight = domain()->calculateGeometryPoint(QPointF(0, category + barWidth / 2), m_validData); | ||||
} | ||||
if (!m_validData) | ||||
return; | ||||
rect.setTopLeft(topLeft); | ||||
rect.setBottomRight(bottomRight); | ||||
m_layout.append(rect.normalized()); | ||||
} | ||||
} | ||||
} | ||||
QVector<QRectF> HorizontalPercentBarChartItem::calculateLayout() | ||||
{ | ||||
QVector<QRectF> layout; | ||||
// Use temporary qreals for accuracy | ||||
qreal categoryCount = m_series->d_func()->categoryCount(); | ||||
qreal setCount = m_series->count(); | ||||
qreal barWidth = m_series->d_func()->barWidth(); | ||||
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; | ||||
qreal topX = 0; | ||||
if (sum > 0) | ||||
topX = 100 * sum / categorySum; | ||||
qreal bottomX = 0; | ||||
qreal newSum = value + sum; | ||||
if (newSum > 0) | ||||
bottomX = 100 * newSum / categorySum; | ||||
QPointF topLeft; | ||||
if (domain()->type() == AbstractDomain::LogXYDomain || domain()->type() == AbstractDomain::LogXLogYDomain) | ||||
topLeft = domain()->calculateGeometryPoint(QPointF(set ? topX : domain()->minX(), category - barWidth/2), m_validData); | ||||
else | ||||
topLeft = domain()->calculateGeometryPoint(QPointF(set ? topX : 0, category - barWidth/2), m_validData); | ||||
QPointF bottomRight = domain()->calculateGeometryPoint(QPointF(bottomX, category + barWidth/2), m_validData); | ||||
rect.setTopLeft(topLeft); | ||||
rect.setBottomRight(bottomRight); | ||||
layout.append(rect.normalized()); | ||||
sum = newSum; | ||||
} | ||||
} | ||||
return layout; | ||||
} | ||||
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); | ||||
static const QString valueTag(QLatin1String("@value")); | ||||
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(); | ||||
QGraphicsTextItem *label = m_labels.at(itemIndex); | ||||
qreal p = m_series->d_func()->percentageAt(set, category) * 100.0; | ||||
QString vString(presenter()->numberToString(p, 'f', 0)); | ||||
QString valueLabel; | ||||
if (p == 0) { | ||||
label->setVisible(false); | ||||
} else { | ||||
label->setVisible(m_series->isLabelsVisible()); | ||||
if (m_series->labelsFormat().isEmpty()) { | ||||
vString.append(QStringLiteral("%")); | ||||
valueLabel = vString; | ||||
} else { | ||||
valueLabel = m_series->labelsFormat(); | ||||
valueLabel.replace(valueTag, vString); | ||||
} | ||||
} | ||||
label->setHtml(valueLabel); | ||||
label->setFont(barSet->m_labelFont); | ||||
label->setDefaultTextColor(barSet->m_labelBrush.color()); | ||||
label->update(); | ||||
itemIndex++; | ||||
} | ||||
} | ||||
} | ||||
#include "moc_horizontalpercentbarchartitem_p.cpp" | ||||
QT_CHARTS_END_NAMESPACE | ||||