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ccdd3ef5 | 1 | /* |
b3f22de0 | 2 | * This file is part of the PulseView project. |
ccdd3ef5 JH |
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 | ||
640d091b UH |
21 | #ifndef PULSEVIEW_PV_VIEW_RULER_H |
22 | #define PULSEVIEW_PV_VIEW_RULER_H | |
ccdd3ef5 JH |
23 | |
24 | #include <QWidget> | |
25 | ||
26 | namespace pv { | |
27 | namespace view { | |
28 | ||
29 | class View; | |
30 | ||
31 | class Ruler : public QWidget | |
32 | { | |
33 | Q_OBJECT | |
34 | ||
35 | private: | |
36 | static const int MinorTickSubdivision; | |
37 | static const int ScaleUnits[3]; | |
38 | ||
39 | static const QString SIPrefixes[9]; | |
40 | static const int FirstSIPrefixPower; | |
41 | ||
b3a7c013 JH |
42 | static const int HoverArrowSize; |
43 | ||
ccdd3ef5 JH |
44 | public: |
45 | Ruler(View &parent); | |
46 | ||
47 | private: | |
48 | void paintEvent(QPaintEvent *event); | |
49 | ||
b3a7c013 | 50 | private: |
f76af637 JH |
51 | void draw_cursors(QPainter &p); |
52 | ||
b3a7c013 JH |
53 | /** |
54 | * Draw a hover arrow under the cursor position. | |
55 | */ | |
56 | void draw_hover_mark(QPainter &p); | |
57 | ||
58 | private slots: | |
59 | void hover_point_changed(); | |
60 | ||
ccdd3ef5 JH |
61 | private: |
62 | View &_view; | |
63 | }; | |
64 | ||
65 | } // namespace view | |
66 | } // namespace pv | |
67 | ||
640d091b | 68 | #endif // PULSEVIEW_PV_VIEW_RULER_H |