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+/****************************************************************************
+**
+** Copyright (C) 2014 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 Enterprise Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise 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 Qt Enterprise 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 "qchartglobal.h"
+#include "xychart_p.h"
+#include <QGraphicsEllipseItem>
+#include <QPen>
+
+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);
+
+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;
+};
+
+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);
+ }
+
+protected:
+ void mousePressEvent(QGraphicsSceneMouseEvent *event)
+ {
+ QGraphicsEllipseItem::mousePressEvent(event);
+ m_parent->markerSelected(this);
+ }
+ void hoverEnterEvent(QGraphicsSceneHoverEvent *event)
+ {
+ QGraphicsEllipseItem::hoverEnterEvent(event);
+ m_parent->markerHovered(this, true);
+ }
+ void hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
+ {
+ QGraphicsEllipseItem::hoverLeaveEvent(event);
+ m_parent->markerHovered(this, false);
+ }
+
+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);
+ }
+
+protected:
+ void mousePressEvent(QGraphicsSceneMouseEvent *event)
+ {
+ QGraphicsRectItem::mousePressEvent(event);
+ m_parent->markerSelected(this);
+ }
+ void hoverEnterEvent(QGraphicsSceneHoverEvent *event)
+ {
+ QGraphicsRectItem::hoverEnterEvent(event);
+ m_parent->markerHovered(this, true);
+ }
+ void hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
+ {
+ QGraphicsRectItem::hoverLeaveEvent(event);
+ m_parent->markerHovered(this, false);
+ }
+
+private:
+ ScatterChartItem *m_parent;
+};
+
+QT_CHARTS_END_NAMESPACE
+
+#endif // SCATTERPRESENTER_H