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Check that areaseries is actually in chart before trying to update....
Miikka Heikkinen -
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1 /****************************************************************************
1 /****************************************************************************
2 **
2 **
3 ** Copyright (C) 2015 The Qt Company Ltd
3 ** Copyright (C) 2015 The Qt Company Ltd
4 ** All rights reserved.
4 ** All rights reserved.
5 ** For any questions to The Qt Company, please use contact form at http://qt.io
5 ** For any questions to The Qt Company, please use contact form at http://qt.io
6 **
6 **
7 ** This file is part of the Qt Charts module.
7 ** This file is part of the Qt Charts module.
8 **
8 **
9 ** Licensees holding valid commercial license for Qt may use this file in
9 ** Licensees holding valid commercial license for Qt may use this file in
10 ** accordance with the Qt License Agreement provided with the Software
10 ** accordance with the Qt License Agreement provided with the Software
11 ** or, alternatively, in accordance with the terms contained in a written
11 ** or, alternatively, in accordance with the terms contained in a written
12 ** agreement between you and The Qt Company.
12 ** agreement between you and The Qt Company.
13 **
13 **
14 ** If you have questions regarding the use of this file, please use
14 ** If you have questions regarding the use of this file, please use
15 ** contact form at http://qt.io
15 ** contact form at http://qt.io
16 **
16 **
17 ****************************************************************************/
17 ****************************************************************************/
18
18
19 // W A R N I N G
19 // W A R N I N G
20 // -------------
20 // -------------
21 //
21 //
22 // This file is not part of the Qt Enterprise Chart API. It exists purely as an
22 // This file is not part of the Qt Enterprise Chart API. It exists purely as an
23 // implementation detail. This header file may change from version to
23 // implementation detail. This header file may change from version to
24 // version without notice, or even be removed.
24 // version without notice, or even be removed.
25 //
25 //
26 // We mean it.
26 // We mean it.
27
27
28 #ifndef AREACHARTITEM_H
28 #ifndef AREACHARTITEM_H
29 #define AREACHARTITEM_H
29 #define AREACHARTITEM_H
30
30
31 #include <QtCharts/QChartGlobal>
31 #include <QtCharts/QChartGlobal>
32 #include <private/linechartitem_p.h>
32 #include <private/linechartitem_p.h>
33 #include <QtCharts/QAreaSeries>
33 #include <QtCharts/QAreaSeries>
34 #include <QtGui/QPen>
34 #include <QtGui/QPen>
35
35
36 QT_CHARTS_BEGIN_NAMESPACE
36 QT_CHARTS_BEGIN_NAMESPACE
37
37
38 class AreaChartItem;
38 class AreaChartItem;
39
39
40 class AreaChartItem : public ChartItem
40 class AreaChartItem : public ChartItem
41 {
41 {
42 Q_OBJECT
42 Q_OBJECT
43 public:
43 public:
44 AreaChartItem(QAreaSeries *areaSeries, QGraphicsItem* item = 0);
44 AreaChartItem(QAreaSeries *areaSeries, QGraphicsItem* item = 0);
45 ~AreaChartItem();
45 ~AreaChartItem();
46
46
47 //from QGraphicsItem
47 //from QGraphicsItem
48 QRectF boundingRect() const;
48 QRectF boundingRect() const;
49 void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
49 void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
50 QPainterPath shape() const;
50 QPainterPath shape() const;
51
51
52 LineChartItem *upperLineItem() const { return m_upper; }
52 LineChartItem *upperLineItem() const { return m_upper; }
53 LineChartItem *lowerLineItem() const { return m_lower; }
53 LineChartItem *lowerLineItem() const { return m_lower; }
54
54
55 void updatePath();
55 void updatePath();
56
56
57 void setPresenter(ChartPresenter *presenter);
57 void setPresenter(ChartPresenter *presenter);
58 QAreaSeries *series() const { return m_series; }
58 QAreaSeries *series() const { return m_series; }
59
59
60 protected:
60 protected:
61 void mousePressEvent(QGraphicsSceneMouseEvent *event);
61 void mousePressEvent(QGraphicsSceneMouseEvent *event);
62 void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
62 void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
63 void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
63 void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
64 void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
64 void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
65 void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);
65 void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);
66
66
67 Q_SIGNALS:
67 Q_SIGNALS:
68 void clicked(const QPointF &point);
68 void clicked(const QPointF &point);
69 void hovered(const QPointF &point, bool state);
69 void hovered(const QPointF &point, bool state);
70 void pressed(const QPointF &point);
70 void pressed(const QPointF &point);
71 void released(const QPointF &point);
71 void released(const QPointF &point);
72 void doubleClicked(const QPointF &point);
72 void doubleClicked(const QPointF &point);
73
73
74 public Q_SLOTS:
74 public Q_SLOTS:
75 void handleUpdated();
75 void handleUpdated();
76 void handleDomainUpdated();
76 void handleDomainUpdated();
77
77
78 private:
78 private:
79 QAreaSeries *m_series;
79 QAreaSeries *m_series;
80 LineChartItem *m_upper;
80 LineChartItem *m_upper;
81 LineChartItem *m_lower;
81 LineChartItem *m_lower;
82 QPainterPath m_path;
82 QPainterPath m_path;
83 QRectF m_rect;
83 QRectF m_rect;
84 QPen m_linePen;
84 QPen m_linePen;
85 QPen m_pointPen;
85 QPen m_pointPen;
86 QBrush m_brush;
86 QBrush m_brush;
87 bool m_pointsVisible;
87 bool m_pointsVisible;
88
88
89 bool m_pointLabelsVisible;
89 bool m_pointLabelsVisible;
90 QString m_pointLabelsFormat;
90 QString m_pointLabelsFormat;
91 QFont m_pointLabelsFont;
91 QFont m_pointLabelsFont;
92 QColor m_pointLabelsColor;
92 QColor m_pointLabelsColor;
93
93
94 QPointF m_lastMousePos;
94 QPointF m_lastMousePos;
95 bool m_mousePressed;
95 bool m_mousePressed;
96
96
97 };
97 };
98
98
99 class AreaBoundItem : public LineChartItem
99 class AreaBoundItem : public LineChartItem
100 {
100 {
101 public:
101 public:
102 AreaBoundItem(AreaChartItem *area, QLineSeries *lineSeries,QGraphicsItem* item = 0)
102 AreaBoundItem(AreaChartItem *area, QLineSeries *lineSeries,QGraphicsItem* item = 0)
103 : LineChartItem(lineSeries, item), m_item(area)
103 : LineChartItem(lineSeries, item), m_item(area)
104 {
104 {
105 // We do not actually want to draw anything from LineChartItem.
105 // We do not actually want to draw anything from LineChartItem.
106 // Drawing is done in AreaChartItem only.
106 // Drawing is done in AreaChartItem only.
107 setVisible(false);
107 setVisible(false);
108 }
108 }
109 ~AreaBoundItem() {}
109 ~AreaBoundItem() {}
110
110
111 void updateGeometry()
111 void updateGeometry()
112 {
112 {
113 // Make sure the series is in a chart before trying to update
114 if (m_item->series()->chart()) {
113 // Turn off points drawing from component line chart item, as that
115 // Turn off points drawing from component line chart item, as that
114 // messes up the fill for area series.
116 // messes up the fill for area series.
115 suppressPoints();
117 suppressPoints();
116 // Component lineseries are not necessarily themselves on the chart,
118 // Component lineseries are not necessarily themselves on the chart,
117 // so get the chart type for them from area chart.
119 // so get the chart type for them from area chart.
118 forceChartType(m_item->series()->chart()->chartType());
120 forceChartType(m_item->series()->chart()->chartType());
119 LineChartItem::updateGeometry();
121 LineChartItem::updateGeometry();
120 m_item->updatePath();
122 m_item->updatePath();
121 }
123 }
124 }
122
125
123 private:
126 private:
124 AreaChartItem *m_item;
127 AreaChartItem *m_item;
125 };
128 };
126
129
127 QT_CHARTS_END_NAMESPACE
130 QT_CHARTS_END_NAMESPACE
128
131
129 #endif
132 #endif
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