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Cursor: Don't draw cursors over each other when they have equal time
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1/*
2 * This file is part of the PulseView project.
3 *
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#ifndef PULSEVIEW_PV_VIEW_MARKER_H
22#define PULSEVIEW_PV_VIEW_MARKER_H
23
24#include <QColor>
25#include <QDoubleSpinBox>
26#include <QObject>
27#include <QRectF>
28#include <QWidgetAction>
29
30#include "timeitem.hpp"
31
32class QPainter;
33class QRect;
34
35namespace pv {
36namespace view {
37
38class View;
39
40class TimeMarker : public TimeItem
41{
42 Q_OBJECT
43
44public:
45 static const int ArrowSize;
46
47protected:
48 /**
49 * Constructor.
50 * @param view A reference to the view that owns this marker.
51 * @param colour A reference to the colour of this cursor.
52 * @param time The time to set the flag to.
53 */
54 TimeMarker(View &view, const QColor &colour, double time);
55
56public:
57 /**
58 * Gets the time of the marker.
59 */
60 double time() const;
61
62 /**
63 * Sets the time of the marker.
64 */
65 void set_time(double time);
66
67 float get_x() const;
68
69 /**
70 * Gets the drag point of the row item.
71 */
72 QPoint point() const;
73
74 /**
75 * Computes the outline rectangle of a label.
76 * @param rect the rectangle of the header area.
77 * @return Returns the rectangle of the signal label.
78 */
79 QRectF label_rect(const QRectF &rect) const;
80
81 /**
82 * Gets the text to show in the marker.
83 */
84 virtual QString get_text() const = 0;
85
86 /**
87 * Paints the marker's label to the ruler.
88 * @param p The painter to draw with.
89 * @param rect The rectangle of the ruler client area.
90 * @param hover true if the label is being hovered over by the mouse.
91 */
92 void paint_label(QPainter &p, const QRect &rect, bool hover);
93
94 /**
95 * Paints the foreground layer of the item with a QPainter
96 * @param p the QPainter to paint into.
97 * @param pp the painting parameters object to paint with.
98 **/
99 void paint_fore(QPainter &p, const ViewItemPaintParams &pp);
100
101 virtual pv::widgets::Popup* create_popup(QWidget *parent);
102
103private Q_SLOTS:
104 void on_value_changed(double value);
105
106protected:
107 const QColor &colour_;
108
109 double time_;
110
111 QSizeF text_size_;
112
113 QWidgetAction *value_action_;
114 QDoubleSpinBox *value_widget_;
115 bool updating_value_widget_;
116};
117
118} // namespace view
119} // namespace pv
120
121#endif // PULSEVIEW_PV_VIEW_MARKER_H