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Better support for negative values in stacked barcharts. Negative values are stacked from zero to negative direction. Positive values are stacked from zero to positive direction.
Better support for negative values in stacked barcharts. Negative values are stacked from zero to negative direction. Positive values are stacked from zero to positive direction.

File last commit:

r1827:f8179c45a147
r1897:c0fc53c8ab57
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linechartitem_p.h
76 lines | 2.0 KiB | text/x-c | CLexer
/****************************************************************************
**
** 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 LINECHARTITEM_H
#define LINECHARTITEM_H
#include "qchartglobal.h"
#include "xychart_p.h"
#include <QPen>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
class QLineSeries;
class ChartPresenter;
class LineChartItem : public XYChart , public QGraphicsItem
{
Q_OBJECT
Q_INTERFACES(QGraphicsItem)
public:
explicit LineChartItem(QLineSeries *series,ChartPresenter *presenter);
~LineChartItem() {}
//from QGraphicsItem
QRectF boundingRect() const;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
QPainterPath shape() const;
QPainterPath path() const { return m_linePath; }
public Q_SLOTS:
void handleUpdated();
protected:
void updateGeometry();
void mousePressEvent(QGraphicsSceneMouseEvent *event);
private:
QLineSeries* m_series;
QPainterPath m_path;
QPainterPath m_linePath;
QVector<QPointF> m_points;
QRectF m_rect;
QPen m_linePen;
bool m_pointsVisible;
};
QTCOMMERCIALCHART_END_NAMESPACE
#endif