|
|
/****************************************************************************
|
|
|
**
|
|
|
** 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 SCATTERCHARTITEM_H
|
|
|
#define SCATTERCHARTITEM_H
|
|
|
|
|
|
#include <QtCharts/QChartGlobal>
|
|
|
#include <private/xychart_p.h>
|
|
|
#include <QtWidgets/QGraphicsEllipseItem>
|
|
|
#include <QtGui/QPen>
|
|
|
#include <QtWidgets/QGraphicsSceneMouseEvent>
|
|
|
|
|
|
QT_CHARTS_BEGIN_NAMESPACE
|
|
|
|
|
|
class QScatterSeries;
|
|
|
|
|
|
class ScatterChartItem : public XYChart
|
|
|
{
|
|
|
Q_OBJECT
|
|
|
Q_INTERFACES(QGraphicsItem)
|
|
|
public:
|
|
|
explicit ScatterChartItem(QScatterSeries *series, QGraphicsItem *item = 0);
|
|
|
|
|
|
public:
|
|
|
//from QGraphicsItem
|
|
|
QRectF boundingRect() const;
|
|
|
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
|
|
|
|
|
|
void setPen(const QPen &pen);
|
|
|
void setBrush(const QBrush &brush);
|
|
|
|
|
|
void markerSelected(QGraphicsItem *item);
|
|
|
void markerHovered(QGraphicsItem *item, bool state);
|
|
|
void markerPressed(QGraphicsItem *item);
|
|
|
void markerReleased(QGraphicsItem *item);
|
|
|
void markerDoubleClicked(QGraphicsItem *item);
|
|
|
|
|
|
void setMousePressed(bool pressed = true) {m_mousePressed = pressed;}
|
|
|
bool mousePressed() {return m_mousePressed;}
|
|
|
|
|
|
|
|
|
public Q_SLOTS:
|
|
|
void handleUpdated();
|
|
|
|
|
|
private:
|
|
|
void createPoints(int count);
|
|
|
void deletePoints(int count);
|
|
|
|
|
|
protected:
|
|
|
void updateGeometry();
|
|
|
|
|
|
private:
|
|
|
QScatterSeries *m_series;
|
|
|
QGraphicsItemGroup m_items;
|
|
|
bool m_visible;
|
|
|
int m_shape;
|
|
|
int m_size;
|
|
|
QRectF m_rect;
|
|
|
QMap<QGraphicsItem *, QPointF> m_markerMap;
|
|
|
|
|
|
bool m_pointLabelsVisible;
|
|
|
QString m_pointLabelsFormat;
|
|
|
QFont m_pointLabelsFont;
|
|
|
QColor m_pointLabelsColor;
|
|
|
bool m_pointLabelsClipping;
|
|
|
|
|
|
bool m_mousePressed;
|
|
|
};
|
|
|
|
|
|
class CircleMarker: public QGraphicsEllipseItem
|
|
|
{
|
|
|
|
|
|
public:
|
|
|
CircleMarker(qreal x, qreal y, qreal w, qreal h, ScatterChartItem *parent)
|
|
|
: QGraphicsEllipseItem(x, y, w, h, parent),
|
|
|
m_parent(parent)
|
|
|
{
|
|
|
setAcceptHoverEvents(true);
|
|
|
setFlag(QGraphicsItem::ItemIsSelectable);
|
|
|
}
|
|
|
|
|
|
protected:
|
|
|
void mousePressEvent(QGraphicsSceneMouseEvent *event)
|
|
|
{
|
|
|
QGraphicsEllipseItem::mousePressEvent(event);
|
|
|
m_parent->markerPressed(this);
|
|
|
m_parent->setMousePressed();
|
|
|
}
|
|
|
void hoverEnterEvent(QGraphicsSceneHoverEvent *event)
|
|
|
{
|
|
|
QGraphicsEllipseItem::hoverEnterEvent(event);
|
|
|
m_parent->markerHovered(this, true);
|
|
|
}
|
|
|
void hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
|
|
|
{
|
|
|
QGraphicsEllipseItem::hoverLeaveEvent(event);
|
|
|
m_parent->markerHovered(this, false);
|
|
|
}
|
|
|
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
|
|
|
{
|
|
|
QGraphicsEllipseItem::mouseReleaseEvent(event);
|
|
|
m_parent->markerReleased(this);
|
|
|
if (m_parent->mousePressed())
|
|
|
m_parent->markerSelected(this);
|
|
|
m_parent->setMousePressed(false);
|
|
|
}
|
|
|
void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
|
|
|
{
|
|
|
QGraphicsEllipseItem::mouseDoubleClickEvent(event);
|
|
|
m_parent->markerDoubleClicked(this);
|
|
|
}
|
|
|
|
|
|
private:
|
|
|
ScatterChartItem *m_parent;
|
|
|
};
|
|
|
|
|
|
class RectangleMarker: public QGraphicsRectItem
|
|
|
{
|
|
|
|
|
|
public:
|
|
|
RectangleMarker(qreal x, qreal y, qreal w, qreal h, ScatterChartItem *parent)
|
|
|
: QGraphicsRectItem(x, y, w, h, parent),
|
|
|
m_parent(parent)
|
|
|
{
|
|
|
setAcceptHoverEvents(true);
|
|
|
setFlag(QGraphicsItem::ItemIsSelectable);
|
|
|
}
|
|
|
|
|
|
protected:
|
|
|
void mousePressEvent(QGraphicsSceneMouseEvent *event)
|
|
|
{
|
|
|
QGraphicsRectItem::mousePressEvent(event);
|
|
|
m_parent->markerPressed(this);
|
|
|
m_parent->setMousePressed();
|
|
|
}
|
|
|
void hoverEnterEvent(QGraphicsSceneHoverEvent *event)
|
|
|
{
|
|
|
QGraphicsRectItem::hoverEnterEvent(event);
|
|
|
m_parent->markerHovered(this, true);
|
|
|
}
|
|
|
void hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
|
|
|
{
|
|
|
QGraphicsRectItem::hoverLeaveEvent(event);
|
|
|
m_parent->markerHovered(this, false);
|
|
|
}
|
|
|
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
|
|
|
{
|
|
|
QGraphicsRectItem::mouseReleaseEvent(event);
|
|
|
m_parent->markerReleased(this);
|
|
|
if (m_parent->mousePressed())
|
|
|
m_parent->markerSelected(this);
|
|
|
m_parent->setMousePressed(false);
|
|
|
}
|
|
|
void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
|
|
|
{
|
|
|
QGraphicsRectItem::mouseDoubleClickEvent(event);
|
|
|
m_parent->markerDoubleClicked(this);
|
|
|
}
|
|
|
|
|
|
private:
|
|
|
ScatterChartItem *m_parent;
|
|
|
};
|
|
|
|
|
|
QT_CHARTS_END_NAMESPACE
|
|
|
|
|
|
#endif // SCATTERPRESENTER_H
|
|
|
|
