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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 <QComboBox> | |
28 | #include <QPainter> | |
29 | #include <QPen> | |
30 | #include <QRect> | |
31 | #include <QString> | |
32 | #include <QWidgetAction> | |
33 | ||
34 | #include <stdint.h> | |
35 | ||
36 | #include <libsigrok/libsigrok.h> | |
37 | ||
38 | #include "selectableitem.h" | |
39 | ||
40 | namespace pv { | |
41 | ||
42 | class SigSession; | |
43 | ||
44 | namespace data { | |
45 | class SignalData; | |
46 | } | |
47 | ||
48 | namespace view { | |
49 | ||
50 | class Signal : public SelectableItem | |
51 | { | |
52 | Q_OBJECT | |
53 | ||
54 | private: | |
55 | static const int LabelHitPadding; | |
56 | ||
57 | static const QPen SignalAxisPen; | |
58 | ||
59 | protected: | |
60 | Signal(pv::SigSession &session, const sr_probe *const probe); | |
61 | ||
62 | public: | |
63 | /** | |
64 | * Gets the name of this signal. | |
65 | */ | |
66 | QString get_name() const; | |
67 | ||
68 | /** | |
69 | * Sets the name of the signal. | |
70 | */ | |
71 | void set_name(QString name); | |
72 | ||
73 | /** | |
74 | * Get the colour of the signal. | |
75 | */ | |
76 | QColor get_colour() const; | |
77 | ||
78 | /** | |
79 | * Set the colour of the signal. | |
80 | */ | |
81 | void set_colour(QColor colour); | |
82 | ||
83 | /** | |
84 | * Gets the vertical layout offset of this signal. | |
85 | */ | |
86 | int get_v_offset() const; | |
87 | ||
88 | /** | |
89 | * Sets the vertical layout offset of this signal. | |
90 | */ | |
91 | void set_v_offset(int v_offset); | |
92 | ||
93 | /** | |
94 | * Paints the signal with a QPainter | |
95 | * @param p the QPainter to paint into. | |
96 | * @param y the y-coordinate to draw the signal at | |
97 | * @param left the x-coordinate of the left edge of the signal | |
98 | * @param right the x-coordinate of the right edge of the signal | |
99 | * @param scale the scale in seconds per pixel. | |
100 | * @param offset the time to show at the left hand edge of | |
101 | * the view in seconds. | |
102 | **/ | |
103 | virtual void paint(QPainter &p, int y, int left, int right, | |
104 | double scale, double offset) = 0; | |
105 | ||
106 | /** | |
107 | * Paints the signal label into a QGLWidget. | |
108 | * @param p the QPainter to paint into. | |
109 | * @param y the y-coordinate of the signal. | |
110 | * @param right the x-coordinate of the right edge of the header | |
111 | * area. | |
112 | * @param hover true if the label is being hovered over by the mouse. | |
113 | */ | |
114 | virtual void paint_label(QPainter &p, int y, int right, | |
115 | bool hover); | |
116 | ||
117 | /** | |
118 | * Determines if a point is in the header label rect. | |
119 | * @param y the y-coordinate of the signal. | |
120 | * @param left the x-coordinate of the left edge of the header | |
121 | * area. | |
122 | * @param right the x-coordinate of the right edge of the header | |
123 | * area. | |
124 | * @param point the point to test. | |
125 | */ | |
126 | bool pt_in_label_rect(int y, int left, int right, | |
127 | const QPoint &point); | |
128 | ||
129 | protected: | |
130 | ||
131 | /** | |
132 | * Paints a zero axis across the viewport. | |
133 | * @param p the QPainter to paint into. | |
134 | * @param y the y-offset of the axis. | |
135 | * @param left the x-coordinate of the left edge of the view. | |
136 | * @param right the x-coordinate of the right edge of the view. | |
137 | */ | |
138 | void paint_axis(QPainter &p, int y, int left, int right); | |
139 | ||
140 | private: | |
141 | ||
142 | /** | |
143 | * Computes an caches the size of the label text. | |
144 | */ | |
145 | void compute_text_size(QPainter &p); | |
146 | ||
147 | /** | |
148 | * Computes the outline rectangle of a label. | |
149 | * @param p the QPainter to lay out text with. | |
150 | * @param y the y-coordinate of the signal. | |
151 | * @param right the x-coordinate of the right edge of the header | |
152 | * area. | |
153 | * @return Returns the rectangle of the signal label. | |
154 | */ | |
155 | QRectF get_label_rect(int y, int right); | |
156 | ||
157 | private slots: | |
158 | void on_text_changed(const QString &text); | |
159 | ||
160 | signals: | |
161 | void text_changed(); | |
162 | ||
163 | protected: | |
164 | pv::SigSession &_session; | |
165 | const sr_probe *const _probe; | |
166 | ||
167 | QString _name; | |
168 | QColor _colour; | |
169 | int _v_offset; | |
170 | ||
171 | QSizeF _text_size; | |
172 | ||
173 | QWidgetAction _name_action; | |
174 | QComboBox _name_widget; | |
175 | bool _updating_name_widget; | |
176 | }; | |
177 | ||
178 | } // namespace view | |
179 | } // namespace pv | |
180 | ||
181 | #endif // PULSEVIEW_PV_SIGNAL_H |