| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Charts module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 or (at your option) any later version |
| ** approved by the KDE Free Qt Foundation. The licenses are as published by |
| ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| // 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> |
| #include <QtCharts/private/qchartglobal_p.h> |
| |
| QT_CHARTS_BEGIN_NAMESPACE |
| |
| class QScatterSeries; |
| |
| class Q_CHARTS_PRIVATE_EXPORT 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 Q_CHARTS_PRIVATE_EXPORT 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 Q_CHARTS_PRIVATE_EXPORT 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 |