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1 | /* |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2013 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_TRACE_H | |
22 | #define PULSEVIEW_PV_TRACE_H | |
23 | ||
24 | #include <QColor> | |
25 | #include <QPainter> | |
26 | #include <QRect> | |
27 | #include <QString> | |
28 | ||
29 | #include <stdint.h> | |
30 | ||
31 | #include "selectableitem.h" | |
32 | ||
33 | namespace pv { | |
34 | ||
35 | class SigSession; | |
36 | ||
37 | namespace view { | |
38 | ||
39 | class Trace : public SelectableItem | |
40 | { | |
41 | Q_OBJECT | |
42 | ||
43 | private: | |
44 | static const int LabelHitPadding; | |
45 | ||
46 | protected: | |
47 | Trace(SigSession &session, QString name); | |
48 | ||
49 | public: | |
50 | /** | |
51 | * Gets the name of this signal. | |
52 | */ | |
53 | QString get_name() const; | |
54 | ||
55 | /** | |
56 | * Sets the name of the signal. | |
57 | */ | |
58 | virtual void set_name(QString name); | |
59 | ||
60 | /** | |
61 | * Get the colour of the signal. | |
62 | */ | |
63 | QColor get_colour() const; | |
64 | ||
65 | /** | |
66 | * Set the colour of the signal. | |
67 | */ | |
68 | void set_colour(QColor colour); | |
69 | ||
70 | /** | |
71 | * Gets the vertical layout offset of this signal. | |
72 | */ | |
73 | int get_v_offset() const; | |
74 | ||
75 | /** | |
76 | * Sets the vertical layout offset of this signal. | |
77 | */ | |
78 | void set_v_offset(int v_offset); | |
79 | ||
80 | /** | |
81 | * Returns true if the trace is visible and enabled. | |
82 | */ | |
83 | virtual bool enabled() const = 0; | |
84 | ||
85 | /** | |
86 | * Paints the trace with a QPainter | |
87 | * @param p the QPainter to paint into. | |
88 | * @param y the y-coordinate to draw the signal at | |
89 | * @param left the x-coordinate of the left edge of the signal | |
90 | * @param right the x-coordinate of the right edge of the signal | |
91 | * @param scale the scale in seconds per pixel. | |
92 | * @param offset the time to show at the left hand edge of | |
93 | * the view in seconds. | |
94 | **/ | |
95 | virtual void paint(QPainter &p, int y, int left, int right, | |
96 | double scale, double offset) = 0; | |
97 | ||
98 | /** | |
99 | * Paints the signal label into a QGLWidget. | |
100 | * @param p the QPainter to paint into. | |
101 | * @param y the y-coordinate of the signal. | |
102 | * @param right the x-coordinate of the right edge of the header | |
103 | * area. | |
104 | * @param hover true if the label is being hovered over by the mouse. | |
105 | */ | |
106 | virtual void paint_label(QPainter &p, int y, int right, | |
107 | bool hover); | |
108 | ||
109 | /** | |
110 | * Determines if a point is in the header label rect. | |
111 | * @param y the y-coordinate of the signal. | |
112 | * @param left the x-coordinate of the left edge of the header | |
113 | * area. | |
114 | * @param right the x-coordinate of the right edge of the header | |
115 | * area. | |
116 | * @param point the point to test. | |
117 | */ | |
118 | bool pt_in_label_rect(int y, int left, int right, | |
119 | const QPoint &point); | |
120 | ||
121 | private: | |
122 | ||
123 | /** | |
124 | * Computes an caches the size of the label text. | |
125 | */ | |
126 | void compute_text_size(QPainter &p); | |
127 | ||
128 | /** | |
129 | * Computes the outline rectangle of a label. | |
130 | * @param p the QPainter to lay out text with. | |
131 | * @param y the y-coordinate of the signal. | |
132 | * @param right the x-coordinate of the right edge of the header | |
133 | * area. | |
134 | * @return Returns the rectangle of the signal label. | |
135 | */ | |
136 | QRectF get_label_rect(int y, int right); | |
137 | ||
138 | signals: | |
139 | void text_changed(); | |
140 | ||
141 | protected: | |
142 | pv::SigSession &_session; | |
143 | ||
144 | QString _name; | |
145 | QColor _colour; | |
146 | int _v_offset; | |
147 | ||
148 | QSizeF _text_size; | |
149 | }; | |
150 | ||
151 | } // namespace view | |
152 | } // namespace pv | |
153 | ||
154 | #endif // PULSEVIEW_PV_TRACEL_H |