| /**************************************************************************** |
| ** |
| ** 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/private/qchartglobal_p.h> |
| #include <QtCharts/QAreaSeries> |
| #include <QtGui/QPen> |
| |
| QT_CHARTS_BEGIN_NAMESPACE |
| |
| class AreaChartItem; |
| |
| class Q_CHARTS_PRIVATE_EXPORT 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; } |
| |
| void setUpperSeries(QLineSeries *series); |
| void setLowerSeries(QLineSeries *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: |
| void fixEdgeSeriesDomain(LineChartItem *edgeSeries); |
| |
| 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 Q_CHARTS_PRIVATE_EXPORT 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 |