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