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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_VIEW_RULER_H | |
22 | #define PULSEVIEW_PV_VIEW_RULER_H | |
23 | ||
24 | #include <memory> | |
25 | ||
26 | #include "marginwidget.hpp" | |
27 | ||
28 | namespace pv { | |
29 | namespace view { | |
30 | ||
31 | class Ruler : public MarginWidget | |
32 | { | |
33 | Q_OBJECT | |
34 | ||
35 | private: | |
36 | static const int RulerHeight; | |
37 | static const int MinorTickSubdivision; | |
38 | ||
39 | static const int HoverArrowSize; | |
40 | ||
41 | public: | |
42 | Ruler(View &parent); | |
43 | ||
44 | public: | |
45 | QSize sizeHint() const; | |
46 | ||
47 | private: | |
48 | void paintEvent(QPaintEvent *event); | |
49 | ||
50 | private: | |
51 | /** | |
52 | * Draw a hover arrow under the cursor position. | |
53 | */ | |
54 | void draw_hover_mark(QPainter &p); | |
55 | ||
56 | private Q_SLOTS: | |
57 | void hover_point_changed(); | |
58 | }; | |
59 | ||
60 | } // namespace view | |
61 | } // namespace pv | |
62 | ||
63 | #endif // PULSEVIEW_PV_VIEW_RULER_H |