2 * This file is part of the PulseView project.
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
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.
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.
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
25 #include "logicsignal.h"
26 #include "../logicdata.h"
27 #include "../logicdatasnapshot.h"
29 using namespace boost;
35 const float LogicSignal::Oversampling = 2.0f;
37 const QColor LogicSignal::EdgeColour(0x80, 0x80, 0x80);
38 const QColor LogicSignal::HighColour(0x00, 0xC0, 0x00);
39 const QColor LogicSignal::LowColour(0xC0, 0x00, 0x00);
41 const QColor LogicSignal::LogicSignalColours[10] = {
42 QColor(0x16, 0x19, 0x1A), // Black
43 QColor(0x8F, 0x52, 0x02), // Brown
44 QColor(0xCC, 0x00, 0x00), // Red
45 QColor(0xF5, 0x79, 0x00), // Orange
46 QColor(0xED, 0xD4, 0x00), // Yellow
47 QColor(0x73, 0xD2, 0x16), // Green
48 QColor(0x34, 0x65, 0xA4), // Blue
49 QColor(0x75, 0x50, 0x7B), // Violet
50 QColor(0x88, 0x8A, 0x85), // Grey
51 QColor(0xEE, 0xEE, 0xEC), // White
54 LogicSignal::LogicSignal(QString name, shared_ptr<LogicData> data,
57 _probe_index(probe_index),
60 assert(_probe_index >= 0);
61 _colour = LogicSignalColours[
62 _probe_index % countof(LogicSignalColours)];
65 void LogicSignal::paint(QPainter &p, const QRect &rect, double scale,
70 vector< pair<int64_t, bool> > edges;
75 const float high_offset = rect.top() + 0.5f;
76 const float low_offset = rect.bottom() + 0.5f;
78 const deque< shared_ptr<pv::LogicDataSnapshot> > &snapshots =
79 _data->get_snapshots();
80 if (snapshots.empty())
83 const shared_ptr<pv::LogicDataSnapshot> &snapshot =
86 const double pixels_offset = offset / scale;
87 const double samplerate = _data->get_samplerate();
88 const double start_time = _data->get_start_time();
89 const int64_t last_sample = snapshot->get_sample_count() - 1;
90 const double samples_per_pixel = samplerate * scale;
91 const double start = samplerate * (offset - start_time);
92 const double end = start + samples_per_pixel * rect.width();
94 snapshot->get_subsampled_edges(edges,
95 min(max((int64_t)floor(start), (int64_t)0), last_sample),
96 min(max((int64_t)ceil(end), (int64_t)0), last_sample),
97 samples_per_pixel / Oversampling, _probe_index);
98 assert(edges.size() >= 2);
101 const unsigned int edge_count = edges.size() - 2;
102 QLineF *const edge_lines = new QLineF[edge_count];
105 for (vector<pv::LogicDataSnapshot::EdgePair>::const_iterator i =
107 i != edges.end() - 1; i++) {
108 const float x = ((*i).first / samples_per_pixel -
109 pixels_offset) + rect.left();
110 *line++ = QLineF(x, high_offset, x, low_offset);
113 p.setPen(EdgeColour);
114 p.drawLines(edge_lines, edge_count);
118 const unsigned int max_cap_line_count = (edges.size() - 1);
119 QLineF *const cap_lines = new QLineF[max_cap_line_count];
121 p.setPen(HighColour);
122 paint_caps(p, cap_lines, edges, true, samples_per_pixel,
123 pixels_offset, rect.left(), high_offset);
125 paint_caps(p, cap_lines, edges, false, samples_per_pixel,
126 pixels_offset, rect.left(), low_offset);
131 void LogicSignal::paint_caps(QPainter &p, QLineF *const lines,
132 vector< pair<int64_t, bool> > &edges, bool level,
133 double samples_per_pixel, double pixels_offset, float x_offset,
136 QLineF *line = lines;
138 for (vector<pv::LogicDataSnapshot::EdgePair>::const_iterator i =
139 edges.begin(); i != (edges.end() - 1); i++)
140 if ((*i).second == level) {
142 ((*i).first / samples_per_pixel -
143 pixels_offset) + x_offset, y_offset,
144 ((*(i+1)).first / samples_per_pixel -
145 pixels_offset) + x_offset, y_offset);
148 p.drawLines(lines, line - lines);
151 int LogicSignal::get_nominal_offset(const QRect &rect) const
153 return rect.bottom();