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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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #ifndef PULSEVIEW_PV_VIEWS_TRACEVIEW_TRACE_HPP | |
21 | #define PULSEVIEW_PV_VIEWS_TRACEVIEW_TRACE_HPP | |
22 | ||
23 | #include <QColor> | |
24 | #include <QPainter> | |
25 | #include <QPen> | |
26 | #include <QRect> | |
27 | #include <QString> | |
28 | ||
29 | #include <cstdint> | |
30 | ||
31 | #include "tracetreeitem.hpp" | |
32 | ||
33 | #include <pv/globalsettings.hpp> | |
34 | #include "pv/data/signalbase.hpp" | |
35 | ||
36 | using std::shared_ptr; | |
37 | ||
38 | class QFormLayout; | |
39 | ||
40 | namespace pv { | |
41 | ||
42 | namespace data { | |
43 | class SignalBase; | |
44 | } | |
45 | ||
46 | namespace widgets { | |
47 | class Popup; | |
48 | } | |
49 | ||
50 | namespace views { | |
51 | namespace trace { | |
52 | ||
53 | /** | |
54 | * The Trace class represents a @ref TraceTreeItem which occupies some vertical | |
55 | * space on the canvas and spans across its entire width, essentially showing | |
56 | * a time series of values, events, objects or similar. While easily confused | |
57 | * with @ref Signal, the difference is that Trace may represent anything that | |
58 | * can be drawn, not just numeric values. One example is a @ref DecodeTrace. | |
59 | * | |
60 | * For this reason, Trace is more generic and contains properties and helpers | |
61 | * that benefit any kind of time series items. | |
62 | */ | |
63 | class Trace : public TraceTreeItem, public GlobalSettingsInterface | |
64 | { | |
65 | Q_OBJECT | |
66 | ||
67 | public: | |
68 | /** | |
69 | * Allowed values for the multi-segment display mode. | |
70 | * | |
71 | * Note: Consider these locations when updating the list: | |
72 | * * | |
73 | * @ref View::set_segment_display_mode | |
74 | * @ref View::on_segment_changed | |
75 | * @ref AnalogSignal::get_analog_segment_to_paint | |
76 | * @ref AnalogSignal::get_logic_segment_to_paint | |
77 | * @ref LogicSignal::get_logic_segment_to_paint | |
78 | * @ref StandardBar | |
79 | */ | |
80 | enum SegmentDisplayMode { | |
81 | ShowLastSegmentOnly = 1, | |
82 | ShowLastCompleteSegmentOnly, | |
83 | ShowSingleSegmentOnly, | |
84 | ShowAllSegments, | |
85 | ShowAccumulatedIntensity | |
86 | }; | |
87 | ||
88 | private: | |
89 | static const QPen AxisPen; | |
90 | static const int LabelHitPadding; | |
91 | ||
92 | static const QColor BrightGrayBGColor; | |
93 | static const QColor DarkGrayBGColor; | |
94 | ||
95 | protected: | |
96 | Trace(shared_ptr<data::SignalBase> channel); | |
97 | ||
98 | public: | |
99 | /** | |
100 | * Returns the underlying SignalBase instance. | |
101 | */ | |
102 | shared_ptr<data::SignalBase> base() const; | |
103 | ||
104 | /** | |
105 | * Configures the segment display mode to use. | |
106 | */ | |
107 | virtual void set_segment_display_mode(SegmentDisplayMode mode); | |
108 | ||
109 | virtual void on_setting_changed(const QString &key, const QVariant &value); | |
110 | ||
111 | /** | |
112 | * Paints the signal label. | |
113 | * @param p the QPainter to paint into. | |
114 | * @param rect the rectangle of the header area. | |
115 | * @param hover true if the label is being hovered over by the mouse. | |
116 | */ | |
117 | virtual void paint_label(QPainter &p, const QRect &rect, bool hover); | |
118 | ||
119 | virtual QMenu* create_context_menu(QWidget *parent); | |
120 | ||
121 | pv::widgets::Popup* create_popup(QWidget *parent); | |
122 | ||
123 | /** | |
124 | * Computes the outline rectangle of a label. | |
125 | * @param rect the rectangle of the header area. | |
126 | * @return Returns the rectangle of the signal label. | |
127 | */ | |
128 | QRectF label_rect(const QRectF &rect) const; | |
129 | ||
130 | void set_current_segment(const int segment); | |
131 | ||
132 | int get_current_segment() const; | |
133 | ||
134 | virtual void hover_point_changed(const QPoint &hp); | |
135 | ||
136 | protected: | |
137 | /** | |
138 | * Paints the background layer of the signal with a QPainter. | |
139 | * @param p The QPainter to paint into. | |
140 | * @param pp The painting parameters object to paint with. | |
141 | */ | |
142 | virtual void paint_back(QPainter &p, ViewItemPaintParams &pp); | |
143 | ||
144 | /** | |
145 | * Paints a zero axis across the viewport. | |
146 | * @param p the QPainter to paint into. | |
147 | * @param pp the painting parameters object to paint with. | |
148 | * @param y the y-offset of the axis. | |
149 | */ | |
150 | void paint_axis(QPainter &p, ViewItemPaintParams &pp, int y); | |
151 | ||
152 | /** | |
153 | * Draw a hover marker under the cursor position. | |
154 | * @param p The painter to draw into. | |
155 | */ | |
156 | void paint_hover_marker(QPainter &p); | |
157 | ||
158 | void add_color_option(QWidget *parent, QFormLayout *form); | |
159 | ||
160 | void create_popup_form(); | |
161 | ||
162 | virtual void populate_popup_form(QWidget *parent, QFormLayout *form); | |
163 | ||
164 | protected Q_SLOTS: | |
165 | virtual void on_name_changed(const QString &text); | |
166 | ||
167 | virtual void on_color_changed(const QColor &color); | |
168 | ||
169 | void on_popup_closed(); | |
170 | ||
171 | private Q_SLOTS: | |
172 | void on_nameedit_changed(const QString &name); | |
173 | ||
174 | void on_coloredit_changed(const QColor &color); | |
175 | ||
176 | protected: | |
177 | shared_ptr<data::SignalBase> base_; | |
178 | QPen axis_pen_; | |
179 | ||
180 | SegmentDisplayMode segment_display_mode_; | |
181 | bool show_hover_marker_; | |
182 | ||
183 | /// The ID of the currently displayed segment | |
184 | int current_segment_; | |
185 | ||
186 | private: | |
187 | pv::widgets::Popup *popup_; | |
188 | QFormLayout *popup_form_; | |
189 | }; | |
190 | ||
191 | } // namespace trace | |
192 | } // namespace views | |
193 | } // namespace pv | |
194 | ||
195 | #endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_TRACE_HPP |