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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_SIGNAL_H | |
22 | #define PULSEVIEW_PV_SIGNAL_H | |
23 | ||
24 | #include <boost/shared_ptr.hpp> | |
25 | ||
26 | #include <QColor> | |
27 | #include <QPainter> | |
28 | #include <QPen> | |
29 | #include <QRect> | |
30 | #include <QString> | |
31 | ||
32 | #include <stdint.h> | |
33 | ||
34 | #include <libsigrok/libsigrok.h> | |
35 | ||
36 | #include "selectableitem.h" | |
37 | ||
38 | namespace pv { | |
39 | ||
40 | namespace data { | |
41 | class SignalData; | |
42 | } | |
43 | ||
44 | namespace view { | |
45 | ||
46 | class Signal : public SelectableItem | |
47 | { | |
48 | private: | |
49 | static const int LabelHitPadding; | |
50 | static const int LabelHighlightRadius; | |
51 | ||
52 | static const QPen SignalAxisPen; | |
53 | ||
54 | protected: | |
55 | Signal(const sr_probe *const probe); | |
56 | ||
57 | public: | |
58 | /** | |
59 | * Gets the name of this signal. | |
60 | */ | |
61 | QString get_name() const; | |
62 | ||
63 | /** | |
64 | * Sets the name of the signal. | |
65 | */ | |
66 | void set_name(QString name); | |
67 | ||
68 | /** | |
69 | * Get the colour of the signal. | |
70 | */ | |
71 | QColor get_colour() const; | |
72 | ||
73 | /** | |
74 | * Set the colour of the signal. | |
75 | */ | |
76 | void set_colour(QColor colour); | |
77 | ||
78 | /** | |
79 | * Gets the vertical layout offset of this signal. | |
80 | */ | |
81 | int get_v_offset() const; | |
82 | ||
83 | /** | |
84 | * Sets the vertical layout offset of this signal. | |
85 | */ | |
86 | void set_v_offset(int v_offset); | |
87 | ||
88 | /** | |
89 | * Returns true if the signal has been selected by the user. | |
90 | */ | |
91 | bool selected() const; | |
92 | ||
93 | /** | |
94 | * Selects or deselects the signal. | |
95 | */ | |
96 | void select(bool select = true); | |
97 | ||
98 | /** | |
99 | * Paints the signal with a QPainter | |
100 | * @param p the QPainter to paint into. | |
101 | * @param y the y-coordinate to draw the signal at | |
102 | * @param left the x-coordinate of the left edge of the signal | |
103 | * @param right the x-coordinate of the right edge of the signal | |
104 | * @param scale the scale in seconds per pixel. | |
105 | * @param offset the time to show at the left hand edge of | |
106 | * the view in seconds. | |
107 | **/ | |
108 | virtual void paint(QPainter &p, int y, int left, int right, | |
109 | double scale, double offset) = 0; | |
110 | ||
111 | /** | |
112 | * Paints the signal label into a QGLWidget. | |
113 | * @param p the QPainter to paint into. | |
114 | * @param y the y-coordinate of the signal. | |
115 | * @param right the x-coordinate of the right edge of the header | |
116 | * area. | |
117 | * @param hover true if the label is being hovered over by the mouse. | |
118 | */ | |
119 | virtual void paint_label(QPainter &p, int y, int right, | |
120 | bool hover); | |
121 | ||
122 | /** | |
123 | * Determines if a point is in the header label rect. | |
124 | * @param y the y-coordinate of the signal. | |
125 | * @param left the x-coordinate of the left edge of the header | |
126 | * area. | |
127 | * @param right the x-coordinate of the right edge of the header | |
128 | * area. | |
129 | * @param point the point to test. | |
130 | */ | |
131 | bool pt_in_label_rect(int y, int left, int right, | |
132 | const QPoint &point); | |
133 | ||
134 | protected: | |
135 | ||
136 | /** | |
137 | * Paints a zero axis across the viewport. | |
138 | * @param p the QPainter to paint into. | |
139 | * @param y the y-offset of the axis. | |
140 | * @param left the x-coordinate of the left edge of the view. | |
141 | * @param right the x-coordinate of the right edge of the view. | |
142 | */ | |
143 | void paint_axis(QPainter &p, int y, int left, int right); | |
144 | ||
145 | private: | |
146 | ||
147 | /** | |
148 | * Computes an caches the size of the label text. | |
149 | */ | |
150 | void compute_text_size(QPainter &p); | |
151 | ||
152 | /** | |
153 | * Computes the outline rectangle of a label. | |
154 | * @param p the QPainter to lay out text with. | |
155 | * @param y the y-coordinate of the signal. | |
156 | * @param right the x-coordinate of the right edge of the header | |
157 | * area. | |
158 | * @return Returns the rectangle of the signal label. | |
159 | */ | |
160 | QRectF get_label_rect(int y, int right); | |
161 | ||
162 | protected: | |
163 | const sr_probe *const _probe; | |
164 | ||
165 | QString _name; | |
166 | QColor _colour; | |
167 | int _v_offset; | |
168 | ||
169 | bool _selected; | |
170 | ||
171 | QSizeF _text_size; | |
172 | }; | |
173 | ||
174 | } // namespace view | |
175 | } // namespace pv | |
176 | ||
177 | #endif // PULSEVIEW_PV_SIGNAL_H |