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aba1dd16 JH |
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 | ||
7a01bd36 JH |
21 | #ifndef PULSEVIEW_PV_VIEW_ANALOGSIGNAL_HPP |
22 | #define PULSEVIEW_PV_VIEW_ANALOGSIGNAL_HPP | |
aba1dd16 | 23 | |
2acdb232 | 24 | #include "signal.hpp" |
aba1dd16 | 25 | |
f9abf97e | 26 | #include <memory> |
aba1dd16 JH |
27 | |
28 | namespace pv { | |
29 | ||
1b1ec774 JH |
30 | namespace data { |
31 | class Analog; | |
f3d66e52 | 32 | class AnalogSegment; |
1b1ec774 | 33 | } |
aba1dd16 JH |
34 | |
35 | namespace view { | |
36 | ||
37 | class AnalogSignal : public Signal | |
38 | { | |
568b90d4 | 39 | private: |
a5d93c27 | 40 | static const int NominalHeight; |
568b90d4 JH |
41 | static const QColor SignalColours[4]; |
42 | ||
7c68ddae JH |
43 | static const float EnvelopeThreshold; |
44 | ||
aba1dd16 | 45 | public: |
2b81ae46 | 46 | AnalogSignal(pv::Session &session, |
b86aa8f4 | 47 | std::shared_ptr<sigrok::Channel> channel, |
f9abf97e | 48 | std::shared_ptr<pv::data::Analog> data); |
aba1dd16 | 49 | |
f459c540 JH |
50 | virtual ~AnalogSignal(); |
51 | ||
f9abf97e | 52 | std::shared_ptr<pv::data::SignalData> data() const; |
9a0cd293 | 53 | |
f9abf97e | 54 | std::shared_ptr<pv::data::Analog> analog_data() const; |
3009b5b3 | 55 | |
a5d93c27 JH |
56 | /** |
57 | * Computes the vertical extents of the contents of this row item. | |
58 | * @return A pair containing the minimum and maximum y-values. | |
59 | */ | |
60 | std::pair<int, int> v_extents() const; | |
61 | ||
214470fc JH |
62 | /** |
63 | * Returns the offset to show the drag handle. | |
64 | */ | |
65 | int scale_handle_offset() const; | |
66 | ||
67 | /** | |
68 | * Handles the scale handle being dragged to an offset. | |
69 | * @param offset the offset the scale handle was dragged to. | |
70 | */ | |
71 | void scale_handle_dragged(int offset); | |
72 | ||
8a2fafcc JH |
73 | /** |
74 | * @copydoc pv::view::Signal::signal_scale_handle_drag_release() | |
75 | */ | |
76 | void scale_handle_drag_release(); | |
77 | ||
aba1dd16 | 78 | /** |
fe08b6e8 | 79 | * Paints the background layer of the signal with a QPainter |
aba1dd16 | 80 | * @param p the QPainter to paint into. |
3eb29afd | 81 | * @param pp the painting parameters object to paint with.. |
223d0c37 | 82 | */ |
5b5fa4da | 83 | void paint_back(QPainter &p, const ViewItemPaintParams &pp); |
fe08b6e8 JH |
84 | |
85 | /** | |
86 | * Paints the mid-layer of the signal with a QPainter | |
87 | * @param p the QPainter to paint into. | |
3eb29afd | 88 | * @param pp the painting parameters object to paint with.. |
223d0c37 | 89 | */ |
5b5fa4da | 90 | void paint_mid(QPainter &p, const ViewItemPaintParams &pp); |
aba1dd16 | 91 | |
7c68ddae JH |
92 | private: |
93 | void paint_trace(QPainter &p, | |
f3d66e52 | 94 | const std::shared_ptr<pv::data::AnalogSegment> &segment, |
7c68ddae JH |
95 | int y, int left, const int64_t start, const int64_t end, |
96 | const double pixels_offset, const double samples_per_pixel); | |
97 | ||
98 | void paint_envelope(QPainter &p, | |
f3d66e52 | 99 | const std::shared_ptr<pv::data::AnalogSegment> &segment, |
7c68ddae JH |
100 | int y, int left, const int64_t start, const int64_t end, |
101 | const double pixels_offset, const double samples_per_pixel); | |
102 | ||
8a2fafcc JH |
103 | /** |
104 | * Computes the scale factor from the scale index. | |
105 | */ | |
106 | float scale() const; | |
107 | ||
aba1dd16 | 108 | private: |
8dbbc7f0 | 109 | std::shared_ptr<pv::data::Analog> data_; |
8a2fafcc JH |
110 | |
111 | int scale_index_; | |
112 | int scale_index_drag_offset_; | |
aba1dd16 JH |
113 | }; |
114 | ||
115 | } // namespace view | |
116 | } // namespace pv | |
117 | ||
7a01bd36 | 118 | #endif // PULSEVIEW_PV_VIEW_ANALOGSIGNAL_HPP |