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fix a crash with the cursor in debug
trabillard -
r975:de303a265a7e
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@@ -1,163 +1,163
1 1 #include <Common/DateUtils.h>
2 2 #include <Visualization/VisualizationCursorItem.h>
3 3 #include <Visualization/qcustomplot.h>
4 4
5 5 /// Width of the cursor in pixel
6 6 const auto CURSOR_WIDTH = 3;
7 7
8 8 /// Color of the cursor in the graph
9 9 const auto CURSOR_COLOR = QColor{68, 114, 196};
10 10
11 11 /// Line style of the cursor in the graph
12 12 auto CURSOR_PEN_STYLE = Qt::DotLine;
13 13
14 14 struct VisualizationCursorItem::VisualizationCursorItemPrivate {
15 15
16 16 QCustomPlot *m_Plot = nullptr;
17 17
18 18 QCPItemStraightLine *m_LineItem = nullptr;
19 19 QCPItemText *m_LabelItem = nullptr;
20 20
21 21 Qt::Orientation m_Orientation;
22 22 double m_Position = 0.0;
23 23 bool m_IsAbsolutePosition = false;
24 24 QString m_LabelText;
25 25
26 26 explicit VisualizationCursorItemPrivate(QCustomPlot *plot)
27 27 : m_Plot(plot), m_Orientation(Qt::Vertical)
28 28 {
29 29 }
30 30
31 31 void updateOrientation()
32 32 {
33 33 if (m_LineItem) {
34 34 switch (m_Orientation) {
35 35 case Qt::Vertical:
36 36 m_LineItem->point1->setTypeX(m_IsAbsolutePosition
37 37 ? QCPItemPosition::ptAbsolute
38 38 : QCPItemPosition::ptPlotCoords);
39 39 m_LineItem->point1->setTypeY(QCPItemPosition::ptAxisRectRatio);
40 40 m_LineItem->point2->setTypeX(m_IsAbsolutePosition
41 41 ? QCPItemPosition::ptAbsolute
42 42 : QCPItemPosition::ptPlotCoords);
43 43 m_LineItem->point2->setTypeY(QCPItemPosition::ptAxisRectRatio);
44 44 m_LabelItem->setPositionAlignment(Qt::AlignLeft | Qt::AlignTop);
45 45 break;
46 46 case Qt::Horizontal:
47 47 m_LineItem->point1->setTypeX(QCPItemPosition::ptAxisRectRatio);
48 48 m_LineItem->point1->setTypeY(m_IsAbsolutePosition
49 49 ? QCPItemPosition::ptAbsolute
50 50 : QCPItemPosition::ptPlotCoords);
51 51 m_LineItem->point2->setTypeX(QCPItemPosition::ptAxisRectRatio);
52 52 m_LineItem->point2->setTypeY(m_IsAbsolutePosition
53 53 ? QCPItemPosition::ptAbsolute
54 54 : QCPItemPosition::ptPlotCoords);
55 55 m_LabelItem->setPositionAlignment(Qt::AlignRight | Qt::AlignBottom);
56 56 }
57 57 }
58 58 }
59 59
60 60 void updateCursorPosition()
61 61 {
62 62 if (m_LineItem) {
63 63 switch (m_Orientation) {
64 64 case Qt::Vertical:
65 65 m_LineItem->point1->setCoords(m_Position, 0);
66 66 m_LineItem->point2->setCoords(m_Position, 1);
67 67 m_LabelItem->position->setCoords(5, 5);
68 68 break;
69 69 case Qt::Horizontal:
70 70 m_LineItem->point1->setCoords(1, m_Position);
71 71 m_LineItem->point2->setCoords(0, m_Position);
72 72 m_LabelItem->position->setCoords(-5, -5);
73 73 }
74 74 }
75 75 }
76 76
77 77 void updateLabelText()
78 78 {
79 79 if (m_LabelItem) {
80 80 m_LabelItem->setText(m_LabelText);
81 81 }
82 82 }
83 83 };
84 84
85 85 VisualizationCursorItem::VisualizationCursorItem(QCustomPlot *plot)
86 86 : impl{spimpl::make_unique_impl<VisualizationCursorItemPrivate>(plot)}
87 87 {
88 88 }
89 89
90 90 void VisualizationCursorItem::setVisible(bool value)
91 91 {
92 92 if (value != isVisible()) {
93 93
94 94 if (value) {
95 Q_ASSERT(!impl->m_LineItem && !impl->m_Plot);
95 Q_ASSERT(!impl->m_LineItem && !impl->m_LabelItem);
96 96
97 97 impl->m_LineItem = new QCPItemStraightLine{impl->m_Plot};
98 98 auto pen = QPen{CURSOR_PEN_STYLE};
99 99 pen.setColor(CURSOR_COLOR);
100 100 pen.setWidth(CURSOR_WIDTH);
101 101 impl->m_LineItem->setPen(pen);
102 102 impl->m_LineItem->setSelectable(false);
103 103
104 104 impl->m_LabelItem = new QCPItemText{impl->m_Plot};
105 105 impl->m_LabelItem->setColor(CURSOR_COLOR);
106 106 impl->m_LabelItem->setSelectable(false);
107 107 impl->m_LabelItem->position->setParentAnchor(impl->m_LineItem->point1);
108 108 impl->m_LabelItem->position->setTypeX(QCPItemPosition::ptAbsolute);
109 109 impl->m_LabelItem->position->setTypeY(QCPItemPosition::ptAbsolute);
110 110
111 111 auto font = impl->m_LabelItem->font();
112 112 font.setPointSize(10);
113 113 font.setBold(true);
114 114 impl->m_LabelItem->setFont(font);
115 115
116 116 impl->updateOrientation();
117 117 impl->updateLabelText();
118 118 impl->updateCursorPosition();
119 119 }
120 120 else {
121 Q_ASSERT(impl->m_LineItem && impl->m_Plot);
121 Q_ASSERT(impl->m_LineItem && impl->m_LabelItem);
122 122
123 123 // Note: the items are destroyed by QCustomPlot in removeItem
124 124 impl->m_Plot->removeItem(impl->m_LineItem);
125 125 impl->m_LineItem = nullptr;
126 126 impl->m_Plot->removeItem(impl->m_LabelItem);
127 127 impl->m_LabelItem = nullptr;
128 128 }
129 129 }
130 130 }
131 131
132 132 bool VisualizationCursorItem::isVisible() const
133 133 {
134 134 return impl->m_LineItem != nullptr;
135 135 }
136 136
137 137 void VisualizationCursorItem::setPosition(double value)
138 138 {
139 139 impl->m_Position = value;
140 140 impl->m_IsAbsolutePosition = false;
141 141 impl->updateLabelText();
142 142 impl->updateCursorPosition();
143 143 }
144 144
145 145 void VisualizationCursorItem::setAbsolutePosition(double value)
146 146 {
147 147 setPosition(value);
148 148 impl->m_IsAbsolutePosition = true;
149 149 }
150 150
151 151 void VisualizationCursorItem::setOrientation(Qt::Orientation orientation)
152 152 {
153 153 impl->m_Orientation = orientation;
154 154 impl->updateLabelText();
155 155 impl->updateOrientation();
156 156 impl->updateCursorPosition();
157 157 }
158 158
159 159 void VisualizationCursorItem::setLabelText(const QString &text)
160 160 {
161 161 impl->m_LabelText = text;
162 162 impl->updateLabelText();
163 163 }
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