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
22 #include <libsigrokdecode/libsigrokdecode.h>
31 #include "annotation.h"
33 using namespace boost;
40 const double Annotation::EndCapWidth = 5;
42 Annotation::Annotation(const srd_proto_data *const pdata) :
43 _start_sample(pdata->start_sample),
44 _end_sample(pdata->end_sample)
46 const char *const *annotations = (char**)pdata->data;
48 _annotations.push_back(QString(*annotations));
53 void Annotation::paint(QPainter &p, QColor fill, QColor outline,
54 QColor text_color, int text_height, int left, int right,
55 double samples_per_pixel, double pixels_offset, int y)
57 const int h = (text_height * 3) / 2;
59 const double start = _start_sample / samples_per_pixel -
61 const double end = _end_sample / samples_per_pixel -
64 if (start > right || end < left)
67 const double cap_width = min((end - start) / 2, EndCapWidth);
70 QPointF(start, y + .5f),
71 QPointF(start + cap_width, y + .5f - h / 2),
72 QPointF(end - cap_width, y + .5f - h / 2),
73 QPointF(end, y + .5f),
74 QPointF(end - cap_width, y + .5f + h / 2),
75 QPointF(start + cap_width, y + .5f + h / 2)
80 p.drawConvexPolygon(pts, countof(pts));
82 if (!_annotations.empty())
84 QRectF rect(start + cap_width, y - h / 2,
85 end - start - cap_width * 2, h);
87 p.drawText(rect, Qt::AlignCenter,
88 p.fontMetrics().elidedText(
89 _annotations.front(), Qt::ElideRight,