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Return empty brush/pen/font via API rather than the weird default one...
Return empty brush/pen/font via API rather than the weird default one Previously a non-initialized QPen()/QBrush()/QFont() was returned if axis/series hadn't been added to a chart yet and therefore had not been themed yet. To keep API somewhat consistent with old behavior, return non-initialized QPen()/QBrush()/QFont() instead of the weird default one in these cases. The new behavior is slightly different in that it is no longer possible to restore themed behavior by setting pen/brush/font to non-initialized one, but since there is no way to differentiate e.g. legitimate Qt::black pen from non-initialized pen, we can no longer support this behavior. Change-Id: I99f3d8853b329b5345e3073c040d8bfa8b9b75b4 Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>

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r2432:53927f716a3d
r2519:9ea7d7fe3500
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qpercentbarseries.cpp
118 lines | 3.4 KiB | text/x-c | CppLexer
/****************************************************************************
**
** Copyright (C) 2013 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 "qpercentbarseries.h"
#include "qpercentbarseries_p.h"
#include "percentbarchartitem_p.h"
#include "chartdataset_p.h"
#include "charttheme_p.h"
#include "qvalueaxis.h"
QTCOMMERCIALCHART_BEGIN_NAMESPACE
/*!
\class QPercentBarSeries
\brief Series for creating percent bar chart
\mainclass
QPercentBarSeries represents a series of data shown as bars. The purpose of this class is to draw bars
as stacks, where each bar is shown as percentage of all bars in that category.
QPercentBarSeries groups the data from sets to categories, which are defined by a QStringList.
See the \l {PercentbarChart Example} {percent bar chart example} to learn how to create a percent bar chart.
\image examples_percentbarchart.png
\sa QBarSet, QStackedBarSeries, QAbstractBarSeries
*/
/*!
\qmlclass PercentBarSeries QPercentBarSeries
\inherits QAbstractBarSeries
The following QML shows how to create a simple percent bar chart:
\snippet ../demos/qmlchart/qml/qmlchart/View8.qml 1
\beginfloatleft
\image demos_qmlchart8.png
\endfloat
\clearfloat
*/
/*!
Constructs empty QPercentBarSeries.
QPercentBarSeries is QObject which is a child of a \a parent.
*/
QPercentBarSeries::QPercentBarSeries(QObject *parent)
: QAbstractBarSeries(*new QPercentBarSeriesPrivate(this), parent)
{
}
/*!
Destructor. Removes series from chart.
*/
QPercentBarSeries::~QPercentBarSeries()
{
Q_D(QPercentBarSeries);
if (d->m_chart)
d->m_chart->removeSeries(this);
}
/*!
Returns QChartSeries::SeriesTypePercentBar.
*/
QAbstractSeries::SeriesType QPercentBarSeries::type() const
{
return QAbstractSeries::SeriesTypePercentBar;
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
QPercentBarSeriesPrivate::QPercentBarSeriesPrivate(QPercentBarSeries *q) : QAbstractBarSeriesPrivate(q)
{
}
void QPercentBarSeriesPrivate::initializeDomain()
{
qreal minX(domain()->minX());
qreal minY(domain()->minY());
qreal maxX(domain()->maxX());
qreal maxY(domain()->maxY());
qreal x = categoryCount();
minX = qMin(minX, - (qreal)0.5);
maxX = qMax(maxX, x - (qreal)0.5);
minY = 0;
maxY = 100;
domain()->setRange(minX, maxX, minY, maxY);
}
void QPercentBarSeriesPrivate::initializeGraphics(QGraphicsItem* parent)
{
Q_Q(QPercentBarSeries);
PercentBarChartItem *bar = new PercentBarChartItem(q,parent);
m_item.reset(bar);
QAbstractSeriesPrivate::initializeGraphics(parent);
}
#include "moc_qpercentbarseries.cpp"
QTCOMMERCIALCHART_END_NAMESPACE