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Bar model mapper to Qml custom model demo
Bar model mapper to Qml custom model demo
Tero Ahola - - Load All Authors

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r1306:f8d084165244
r1313:a90564adf9b7
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groupedbarchartitem.cpp
90 lines | 3.1 KiB | text/x-c | CppLexer
/ src / barchart / groupedbarchartitem.cpp
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sauimone
new series: groupedbarseries
 r1167 /****************************************************************************
**
** 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 "groupedbarchartitem_p.h"
#include "bar_p.h"
#include "qbarset_p.h"
#include "qbarseries_p.h"
#include "qbarset.h"
QTCOMMERCIALCHART_BEGIN_NAMESPACE
GroupedBarChartItem::GroupedBarChartItem(QBarSeries *series, ChartPresenter *presenter) :
BarChartItem(series, presenter)
{
}
QVector<QRectF> GroupedBarChartItem::calculateLayout()
{
QVector<QRectF> layout;
// Use temporary qreals for accurancy
qreal categoryCount = m_series->categoryCount();
qreal setCount = m_series->barsetCount();
// Domain:
qreal width = geometry().width();
qreal height = geometry().height();
sauimone
correct x-positioning for barcharts
 r1228 qreal rangeY = m_domainMaxY - m_domainMinY;
qreal rangeX = m_domainMaxX - m_domainMinX;
qreal scaleY = (height / rangeY);
qreal scaleX = (width / rangeX);
sauimone
new series: groupedbarseries
 r1167 qreal categoryWidth = width / categoryCount;
sauimone
margin calculations in groupedbarchart
 r1286 qreal barWidth = categoryWidth / setCount - (categoryWidth / setCount) * m_series->d_func()->barMargin();
sauimone
new series: groupedbarseries
 r1167
int itemIndex(0);
for (int category = 0; category < categoryCount; category++) {
sauimone
correct x-positioning for barcharts
 r1228 qreal yPos = height + scaleY * m_domainMinY + geometry().topLeft().y();
sauimone
new series: groupedbarseries
 r1167 for (int set = 0; set < setCount; set++) {
QBarSet* barSet = m_series->d_func()->barsetAt(set);
sauimone
correct x-positioning for barcharts
 r1228 qreal xPos = (barSet->at(category).x() - m_domainMinX) * scaleX + m_rect.left();
xPos -= setCount*barWidth/2;
xPos += set*barWidth;
qreal barHeight = barSet->at(category).y() * scaleY;
sauimone
new series: groupedbarseries
 r1167 Bar* bar = m_bars.at(itemIndex);
QRectF rect(xPos, yPos - barHeight, barWidth, barHeight);
layout.append(rect);
bar->setPen(barSet->pen());
bar->setBrush(barSet->brush());
sauimone
removed barlabel. label visibility control is now per series instead of per set
 r1246 QGraphicsSimpleTextItem* label = m_labels.at(itemIndex);
sauimone
new series: groupedbarseries
 r1167
if (!qFuzzyIsNull(barSet->at(category).y())) {
label->setText(QString::number(barSet->at(category).y()));
} else {
label->setText(QString(""));
}
label->setPos(xPos + (rect.width()/2 - label->boundingRect().width()/2)
,yPos - barHeight/2 - label->boundingRect().height()/2);
label->setFont(barSet->labelFont());
Tero Ahola
Fixed a bug with QBarSet::setLabelBrush
 r1306 label->setBrush(barSet->labelBrush());
sauimone
new series: groupedbarseries
 r1167
itemIndex++;
}
}
return layout;
}
#include "moc_groupedbarchartitem_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE