|
|
/****************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2015 The Qt Company Ltd
|
|
|
** All rights reserved.
|
|
|
** For any questions to The Qt Company, please use contact form at http://qt.io
|
|
|
**
|
|
|
** This file is part of the Qt Charts module.
|
|
|
**
|
|
|
** Licensees holding valid commercial license for Qt may use this file in
|
|
|
** accordance with the Qt License Agreement provided with the Software
|
|
|
** or, alternatively, in accordance with the terms contained in a written
|
|
|
** agreement between you and The Qt Company.
|
|
|
**
|
|
|
** If you have questions regarding the use of this file, please use
|
|
|
** contact form at http://qt.io
|
|
|
**
|
|
|
****************************************************************************/
|
|
|
|
|
|
// W A R N I N G
|
|
|
// -------------
|
|
|
//
|
|
|
// This file is not part of the Qt 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 <QtCharts/QChartGlobal>
|
|
|
#include <private/linechartitem_p.h>
|
|
|
#include <QtCharts/QAreaSeries>
|
|
|
#include <QtGui/QPen>
|
|
|
|
|
|
QT_CHARTS_BEGIN_NAMESPACE
|
|
|
|
|
|
class AreaChartItem;
|
|
|
|
|
|
class AreaChartItem : public ChartItem
|
|
|
{
|
|
|
Q_OBJECT
|
|
|
public:
|
|
|
AreaChartItem(QAreaSeries *areaSeries, QGraphicsItem* item = 0);
|
|
|
~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();
|
|
|
|
|
|
void setPresenter(ChartPresenter *presenter);
|
|
|
QAreaSeries *series() const { return m_series; }
|
|
|
|
|
|
protected:
|
|
|
void mousePressEvent(QGraphicsSceneMouseEvent *event);
|
|
|
void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
|
|
|
void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
|
|
|
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
|
|
|
void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);
|
|
|
|
|
|
Q_SIGNALS:
|
|
|
void clicked(const QPointF &point);
|
|
|
void hovered(const QPointF &point, bool state);
|
|
|
void pressed(const QPointF &point);
|
|
|
void released(const QPointF &point);
|
|
|
void doubleClicked(const QPointF &point);
|
|
|
|
|
|
public Q_SLOTS:
|
|
|
void handleUpdated();
|
|
|
void handleDomainUpdated();
|
|
|
|
|
|
private:
|
|
|
QAreaSeries *m_series;
|
|
|
LineChartItem *m_upper;
|
|
|
LineChartItem *m_lower;
|
|
|
QPainterPath m_path;
|
|
|
QRectF m_rect;
|
|
|
QPen m_linePen;
|
|
|
QPen m_pointPen;
|
|
|
QBrush m_brush;
|
|
|
bool m_pointsVisible;
|
|
|
|
|
|
bool m_pointLabelsVisible;
|
|
|
QString m_pointLabelsFormat;
|
|
|
QFont m_pointLabelsFont;
|
|
|
QColor m_pointLabelsColor;
|
|
|
bool m_pointLabelsClipping;
|
|
|
|
|
|
QPointF m_lastMousePos;
|
|
|
bool m_mousePressed;
|
|
|
|
|
|
};
|
|
|
|
|
|
class AreaBoundItem : public LineChartItem
|
|
|
{
|
|
|
public:
|
|
|
AreaBoundItem(AreaChartItem *area, QLineSeries *lineSeries,QGraphicsItem* item = 0)
|
|
|
: LineChartItem(lineSeries, item), m_item(area)
|
|
|
{
|
|
|
// We do not actually want to draw anything from LineChartItem.
|
|
|
// Drawing is done in AreaChartItem only.
|
|
|
setVisible(false);
|
|
|
}
|
|
|
~AreaBoundItem() {}
|
|
|
|
|
|
void updateGeometry()
|
|
|
{
|
|
|
// Make sure the series is in a chart before trying to update
|
|
|
if (m_item->series()->chart()) {
|
|
|
// Turn off points drawing from component line chart item, as that
|
|
|
// messes up the fill for area series.
|
|
|
suppressPoints();
|
|
|
// Component lineseries are not necessarily themselves on the chart,
|
|
|
// so get the chart type for them from area chart.
|
|
|
forceChartType(m_item->series()->chart()->chartType());
|
|
|
LineChartItem::updateGeometry();
|
|
|
m_item->updatePath();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
private:
|
|
|
AreaChartItem *m_item;
|
|
|
};
|
|
|
|
|
|
QT_CHARTS_END_NAMESPACE
|
|
|
|
|
|
#endif
|
|
|
|
