##// END OF EJS Templates
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:

r1698:da7242791c36
r1897:c0fc53c8ab57
Show More
areachartitem_p.h
103 lines | 2.6 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 AREACHARTITEM_H
#define AREACHARTITEM_H
#include "qchartglobal.h"
#include "linechartitem_p.h"
#include <QPen>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
class QAreaSeries;
class AreaChartItem;
class AreaChartItem : public ChartItem
{
Q_OBJECT
public:
AreaChartItem(QAreaSeries *areaSeries, ChartPresenter *presenter);
~AreaChartItem();
//from QGraphicsItem
QRectF boundingRect() const;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
QPainterPath shape() const;
LineChartItem* upperLineItem() const { return m_upper; }
LineChartItem* lowerLineItem() const { return m_lower; }
void updatePath();
protected:
void mousePressEvent(QGraphicsSceneMouseEvent *event);
Q_SIGNALS:
void clicked(const QPointF &point);
public Q_SLOTS:
void handleUpdated();
void handleDomainUpdated();
void handleGeometryChanged(const QRectF &size);
private:
QAreaSeries* m_series;
LineChartItem* m_upper;
LineChartItem* m_lower;
QPainterPath m_path;
QRectF m_rect;
QRectF m_clipRect;
QPen m_linePen;
QPen m_pointPen;
QBrush m_brush;
bool m_pointsVisible;
};
class AreaBoundItem : public LineChartItem
{
public:
AreaBoundItem(AreaChartItem *item,QLineSeries *lineSeries,ChartPresenter* presenter) : LineChartItem(lineSeries, 0), m_item(item) {
setPresenter(presenter);
}
~AreaBoundItem() {}
void updateGeometry() {
LineChartItem::updateGeometry();
m_item->updatePath();
}
private:
AreaChartItem* m_item;
};
QTCOMMERCIALCHART_END_NAMESPACE
#endif