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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_VIEW_CURSORPAIR_H | |
22 | #define PULSEVIEW_PV_VIEW_CURSORPAIR_H | |
23 | ||
24 | #include "cursor.h" | |
25 | ||
26 | #include <boost/shared_ptr.hpp> | |
27 | ||
28 | #include <QPainter> | |
29 | ||
30 | class QPainter; | |
31 | ||
32 | namespace pv { | |
33 | namespace view { | |
34 | ||
35 | class CursorPair | |
36 | { | |
37 | private: | |
38 | static const int DeltaPadding; | |
39 | ||
40 | public: | |
41 | /** | |
42 | * Constructor. | |
43 | * @param view A reference to the view that owns this cursor pair. | |
44 | */ | |
45 | CursorPair(View &view); | |
46 | ||
47 | /** | |
48 | * Returns a pointer to the first cursor. | |
49 | */ | |
50 | boost::shared_ptr<Cursor> first() const; | |
51 | ||
52 | /** | |
53 | * Returns a pointer to the second cursor. | |
54 | */ | |
55 | boost::shared_ptr<Cursor> second() const; | |
56 | ||
57 | public: | |
58 | QRectF get_label_rect(const QRect &rect) const; | |
59 | ||
60 | void draw_markers(QPainter &p, | |
61 | const QRect &rect, unsigned int prefix); | |
62 | ||
63 | void draw_viewport_background(QPainter &p, const QRect &rect); | |
64 | ||
65 | void draw_viewport_foreground(QPainter &p, const QRect &rect); | |
66 | ||
67 | void compute_text_size(QPainter &p, unsigned int prefix); | |
68 | ||
69 | std::pair<float, float> get_cursor_offsets() const; | |
70 | ||
71 | private: | |
72 | boost::shared_ptr<Cursor> _first, _second; | |
73 | const View &_view; | |
74 | ||
75 | QSizeF _text_size; | |
76 | }; | |
77 | ||
78 | } // namespace view | |
79 | } // namespace pv | |
80 | ||
81 | #endif // PULSEVIEW_PV_VIEW_CURSORPAIR_H |