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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 | 27 | |
368a37c2 SA |
28 | #include <QComboBox> |
29 | ||
aba1dd16 JH |
30 | namespace pv { |
31 | ||
1b1ec774 JH |
32 | namespace data { |
33 | class Analog; | |
f3d66e52 | 34 | class AnalogSegment; |
bf0edd2b | 35 | class SignalBase; |
1b1ec774 | 36 | } |
aba1dd16 JH |
37 | |
38 | namespace view { | |
39 | ||
40 | class AnalogSignal : public Signal | |
41 | { | |
4cffac16 SA |
42 | Q_OBJECT |
43 | ||
568b90d4 JH |
44 | private: |
45 | static const QColor SignalColours[4]; | |
37b9fed4 | 46 | static const QColor GridMajorColor, GridMinorColor; |
568b90d4 | 47 | |
7c68ddae JH |
48 | static const float EnvelopeThreshold; |
49 | ||
4cffac16 | 50 | static const int MaximumVDivs; |
368a37c2 | 51 | static const int MaxScaleIndex, MinScaleIndex; |
03cc651d | 52 | static const int InfoTextMarginRight, InfoTextMarginBottom; |
4cffac16 | 53 | |
aba1dd16 | 54 | public: |
2b81ae46 | 55 | AnalogSignal(pv::Session &session, |
cbd2a2de | 56 | std::shared_ptr<data::SignalBase> base); |
aba1dd16 | 57 | |
c6246dc5 | 58 | virtual ~AnalogSignal() = default; |
f459c540 | 59 | |
f9abf97e | 60 | std::shared_ptr<pv::data::SignalData> data() const; |
9a0cd293 | 61 | |
a5d93c27 JH |
62 | /** |
63 | * Computes the vertical extents of the contents of this row item. | |
64 | * @return A pair containing the minimum and maximum y-values. | |
65 | */ | |
66 | std::pair<int, int> v_extents() const; | |
67 | ||
214470fc JH |
68 | /** |
69 | * Returns the offset to show the drag handle. | |
70 | */ | |
71 | int scale_handle_offset() const; | |
72 | ||
73 | /** | |
74 | * Handles the scale handle being dragged to an offset. | |
75 | * @param offset the offset the scale handle was dragged to. | |
76 | */ | |
77 | void scale_handle_dragged(int offset); | |
78 | ||
8a2fafcc JH |
79 | /** |
80 | * @copydoc pv::view::Signal::signal_scale_handle_drag_release() | |
81 | */ | |
82 | void scale_handle_drag_release(); | |
83 | ||
aba1dd16 | 84 | /** |
fe08b6e8 | 85 | * Paints the background layer of the signal with a QPainter |
aba1dd16 | 86 | * @param p the QPainter to paint into. |
3eb29afd | 87 | * @param pp the painting parameters object to paint with.. |
223d0c37 | 88 | */ |
5b5fa4da | 89 | void paint_back(QPainter &p, const ViewItemPaintParams &pp); |
fe08b6e8 JH |
90 | |
91 | /** | |
92 | * Paints the mid-layer of the signal with a QPainter | |
93 | * @param p the QPainter to paint into. | |
3eb29afd | 94 | * @param pp the painting parameters object to paint with.. |
223d0c37 | 95 | */ |
5b5fa4da | 96 | void paint_mid(QPainter &p, const ViewItemPaintParams &pp); |
aba1dd16 | 97 | |
03cc651d SA |
98 | /** |
99 | * Paints the foreground layer of the item with a QPainter | |
100 | * @param p the QPainter to paint into. | |
101 | * @param pp the painting parameters object to paint with. | |
102 | */ | |
103 | void paint_fore(QPainter &p, const ViewItemPaintParams &pp); | |
104 | ||
7c68ddae | 105 | private: |
37b9fed4 SA |
106 | void paint_grid(QPainter &p, int y, int left, int right); |
107 | ||
7c68ddae | 108 | void paint_trace(QPainter &p, |
f3d66e52 | 109 | const std::shared_ptr<pv::data::AnalogSegment> &segment, |
7c68ddae JH |
110 | int y, int left, const int64_t start, const int64_t end, |
111 | const double pixels_offset, const double samples_per_pixel); | |
112 | ||
113 | void paint_envelope(QPainter &p, | |
f3d66e52 | 114 | const std::shared_ptr<pv::data::AnalogSegment> &segment, |
7c68ddae JH |
115 | int y, int left, const int64_t start, const int64_t end, |
116 | const double pixels_offset, const double samples_per_pixel); | |
117 | ||
8a2fafcc | 118 | /** |
834a4f1b | 119 | * Computes the scale factor from the scale index and vdiv settings. |
8a2fafcc | 120 | */ |
368a37c2 SA |
121 | float get_resolution(int scale_index); |
122 | ||
834a4f1b | 123 | void update_scale(); |
8a2fafcc | 124 | |
4cffac16 SA |
125 | protected: |
126 | void populate_popup_form(QWidget *parent, QFormLayout *form); | |
127 | ||
128 | private Q_SLOTS: | |
129 | void on_vdivs_changed(int vdivs); | |
130 | ||
368a37c2 SA |
131 | void on_resolution_changed(int index); |
132 | ||
aba1dd16 | 133 | private: |
368a37c2 SA |
134 | QComboBox *resolution_cb_; |
135 | ||
834a4f1b | 136 | float scale_; |
8a2fafcc JH |
137 | int scale_index_; |
138 | int scale_index_drag_offset_; | |
37b9fed4 SA |
139 | |
140 | int div_height_; | |
141 | int vdivs_; // divs per positive/negative side | |
834a4f1b | 142 | float resolution_; // e.g. 10 for 10 V/div |
aba1dd16 JH |
143 | }; |
144 | ||
145 | } // namespace view | |
146 | } // namespace pv | |
147 | ||
7a01bd36 | 148 | #endif // PULSEVIEW_PV_VIEW_ANALOGSIGNAL_HPP |