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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 View; | |
40 | ||
41 | class Trace : public SelectableItem | |
42 | { | |
43 | Q_OBJECT | |
44 | ||
45 | private: | |
46 | static const int LabelHitPadding; | |
47 | ||
48 | protected: | |
49 | Trace(SigSession &session, QString name); | |
50 | ||
51 | public: | |
52 | /** | |
53 | * Gets the name of this signal. | |
54 | */ | |
55 | QString get_name() const; | |
56 | ||
57 | /** | |
58 | * Sets the name of the signal. | |
59 | */ | |
60 | virtual void set_name(QString name); | |
61 | ||
62 | /** | |
63 | * Get the colour of the signal. | |
64 | */ | |
65 | QColor get_colour() const; | |
66 | ||
67 | /** | |
68 | * Set the colour of the signal. | |
69 | */ | |
70 | void set_colour(QColor colour); | |
71 | ||
72 | /** | |
73 | * Gets the vertical layout offset of this signal. | |
74 | */ | |
75 | int get_v_offset() const; | |
76 | ||
77 | /** | |
78 | * Sets the vertical layout offset of this signal. | |
79 | */ | |
80 | void set_v_offset(int v_offset); | |
81 | ||
82 | /** | |
83 | * Returns true if the trace is visible and enabled. | |
84 | */ | |
85 | virtual bool enabled() const = 0; | |
86 | ||
87 | virtual void set_view(pv::view::View *view); | |
88 | ||
89 | /** | |
90 | * Paints the trace with a QPainter | |
91 | * @param p the QPainter to paint into. | |
92 | * @param left the x-coordinate of the left edge of the signal | |
93 | * @param right the x-coordinate of the right edge of the signal | |
94 | **/ | |
95 | virtual void paint(QPainter &p, int left, int right) = 0; | |
96 | ||
97 | /** | |
98 | * Paints the signal label into a QGLWidget. | |
99 | * @param p the QPainter to paint into. | |
100 | * @param right the x-coordinate of the right edge of the header | |
101 | * area. | |
102 | * @param hover true if the label is being hovered over by the mouse. | |
103 | */ | |
104 | virtual void paint_label(QPainter &p, int right, bool hover); | |
105 | ||
106 | /** | |
107 | * Determines if a point is in the header label rect. | |
108 | * @param left the x-coordinate of the left edge of the header | |
109 | * area. | |
110 | * @param right the x-coordinate of the right edge of the header | |
111 | * area. | |
112 | * @param point the point to test. | |
113 | */ | |
114 | bool pt_in_label_rect(int left, int right, const QPoint &point); | |
115 | ||
116 | private: | |
117 | ||
118 | /** | |
119 | * Computes an caches the size of the label text. | |
120 | */ | |
121 | void compute_text_size(QPainter &p); | |
122 | ||
123 | /** | |
124 | * Computes the outline rectangle of a label. | |
125 | * @param p the QPainter to lay out text with. | |
126 | * @param right the x-coordinate of the right edge of the header | |
127 | * area. | |
128 | * @return Returns the rectangle of the signal label. | |
129 | */ | |
130 | QRectF get_label_rect(int right); | |
131 | ||
132 | signals: | |
133 | void text_changed(); | |
134 | ||
135 | protected: | |
136 | pv::SigSession &_session; | |
137 | pv::view::View *_view; | |
138 | ||
139 | QString _name; | |
140 | QColor _colour; | |
141 | int _v_offset; | |
142 | ||
143 | QSizeF _text_size; | |
144 | }; | |
145 | ||
146 | } // namespace view | |
147 | } // namespace pv | |
148 | ||
149 | #endif // PULSEVIEW_PV_TRACEL_H |