|
|
/****************************************************************************
|
|
|
**
|
|
|
** 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 "barchartitem_p.h"
|
|
|
#include "bar_p.h"
|
|
|
#include "qabstractbarseries_p.h"
|
|
|
#include "qbarset.h"
|
|
|
#include "qbarset_p.h"
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
BarChartItem::BarChartItem(QAbstractBarSeries *series, ChartPresenter *presenter) :
|
|
|
AbstractBarChartItem(series, presenter)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
QVector<QRectF> BarChartItem::calculateLayout()
|
|
|
{
|
|
|
QVector<QRectF> layout;
|
|
|
|
|
|
// Use temporary qreals for accuracy
|
|
|
qreal categoryCount = m_series->d_func()->categoryCount();
|
|
|
qreal setCount = m_series->count();
|
|
|
bool barsVisible = m_series->isVisible();
|
|
|
|
|
|
// Domain:
|
|
|
qreal width = geometry().width();
|
|
|
qreal height = geometry().height();
|
|
|
qreal rangeY = m_domainMaxY - m_domainMinY;
|
|
|
qreal rangeX = m_domainMaxX - m_domainMinX;
|
|
|
qreal scaleY = (height / rangeY);
|
|
|
qreal scaleX = (width / rangeX);
|
|
|
qreal rectWidth = (scaleX / setCount) * m_series->d_func()->barWidth();
|
|
|
|
|
|
int itemIndex(0);
|
|
|
for (int category = 0; category < categoryCount; category++) {
|
|
|
qreal yPos = height + scaleY * m_domainMinY + geometry().top();
|
|
|
for (int set = 0; set < setCount; set++) {
|
|
|
QBarSetPrivate* barSet = m_series->d_func()->barsetAt(set)->d_ptr.data();
|
|
|
|
|
|
qreal xPos = (barSet->pos(category) - m_domainMinX) * scaleX + geometry().left();
|
|
|
xPos -= setCount*rectWidth/2;
|
|
|
xPos += set*rectWidth;
|
|
|
|
|
|
qreal rectHeight = barSet->value(category) * scaleY;
|
|
|
Bar* bar = m_bars.at(itemIndex);
|
|
|
|
|
|
QRectF rect(xPos, yPos - rectHeight, rectWidth, rectHeight);
|
|
|
layout.append(rect);
|
|
|
bar->setPen(barSet->m_pen);
|
|
|
bar->setBrush(barSet->m_brush);
|
|
|
if (qFuzzyIsNull(rectHeight)) {
|
|
|
bar->setVisible(false);
|
|
|
} else {
|
|
|
bar->setVisible(barsVisible);
|
|
|
}
|
|
|
|
|
|
QGraphicsSimpleTextItem* label = m_labels.at(itemIndex);
|
|
|
|
|
|
if (!qFuzzyIsNull(barSet->value(category))) {
|
|
|
label->setText(QString::number(barSet->value(category)));
|
|
|
} else {
|
|
|
label->setText(QString(""));
|
|
|
}
|
|
|
|
|
|
label->setPos(xPos + (rect.width()/2 - label->boundingRect().width()/2)
|
|
|
,yPos - rectHeight/2 - label->boundingRect().height()/2);
|
|
|
label->setFont(barSet->m_labelFont);
|
|
|
label->setBrush(barSet->m_labelBrush);
|
|
|
|
|
|
itemIndex++;
|
|
|
}
|
|
|
}
|
|
|
return layout;
|
|
|
}
|
|
|
|
|
|
#include "moc_barchartitem_p.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
