areachartitem_p.h
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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 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 | ||||