scatterchartitem_p.h
201 lines
| 5.9 KiB
| text/x-c
|
CLexer
winter
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r0 | /**************************************************************************** | ||
** | ||||
** 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> | ||||
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 | ||||