##// END OF EJS Templates
Added a new QXYSeries::replace override for performance reasons....
Added a new QXYSeries::replace override for performance reasons. Also added a QML demo application for oscilloscope use case. Oscilloscope use case was selected, because it involves a lot of data and has a strict requirements for performance. It revealed performance issues in data handling in QXYSeries, painting of QLineSeries and updating data in a model.

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qabstractbarseries_p.h
101 lines | 2.8 KiB | text/x-c | CLexer
/ src / barchart / qabstractbarseries_p.h
/****************************************************************************
**
** 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
** $QT_END_LICENSE$
**
****************************************************************************/
// W A R N I N G
// -------------
//
// This file is not part of the QtCommercial Chart API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#ifndef QABSTRACTBARSERIES_P_H
#define QABSTRACTBARSERIES_P_H
#include "qabstractbarseries.h"
#include "qabstractseries_p.h"
#include <QStringList>
#include <QAbstractSeries>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
class QBarModelMapper;
class QBarCategoriesAxis;
class QAbstractBarSeriesPrivate : public QAbstractSeriesPrivate
{
Q_OBJECT
public:
QAbstractBarSeriesPrivate(QAbstractBarSeries *parent);
int categoryCount() const;
void setBarWidth(qreal width);
qreal barWidth() const;
void setVisible(bool visible);
void setLabelsVisible(bool visible);
void scaleDomain(Domain& domain);
ChartElement* createGraphics(ChartPresenter* presenter);
QList<LegendMarker*> createLegendMarker(QLegend* legend);
void initializeAxis(QAbstractAxis* axis);
virtual QAbstractAxis::AxisType defaultAxisType(Qt::Orientation orientation) const;
bool append(QBarSet *set);
bool remove(QBarSet *set);
bool append(QList<QBarSet* > sets);
bool remove(QList<QBarSet* > sets);
bool insert(int index, QBarSet *set);
QBarSet* barsetAt(int index);
qreal min();
qreal max();
qreal valueAt(int set, int category);
qreal percentageAt(int set, int category);
qreal categorySum(int category);
qreal absoluteCategorySum(int category);
qreal maxCategorySum();
qreal minX();
qreal maxX();
Q_SIGNALS:
void clicked(int index, QBarSet *barset);
void updatedBars();
void restructuredBars();
void labelsVisibleChanged(bool visible);
private:
void populateCategories(QBarCategoriesAxis* axis);
protected:
QList<QBarSet *> m_barSets;
qreal m_barWidth;
bool m_labelsVisible;
bool m_visible;
private:
Q_DECLARE_PUBLIC(QAbstractBarSeries)
};
QTCOMMERCIALCHART_END_NAMESPACE
#endif // QABSTRACTBARSERIES_P_H