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
24 #include "pv/util.hpp"
37 using std::shared_ptr;
42 const QColor Cursor::LineColour(32, 74, 135);
43 const QColor Cursor::FillColour(52, 101, 164);
44 const QColor Cursor::HighlightColour(83, 130, 186);
45 const QColor Cursor::TextColour(Qt::white);
47 const int Cursor::Offset = 1;
49 const int Cursor::ArrowSize = 4;
51 Cursor::Cursor(View &view, double time) :
52 TimeMarker(view, LineColour, time)
56 QRectF Cursor::get_label_rect(const QRect &rect) const
58 const shared_ptr<Cursor> other(get_other_cursor());
61 const float x = (time_ - view_.offset()) / view_.scale();
63 const QSizeF label_size(
64 text_size_.width() + View::LabelPadding.width() * 2,
65 text_size_.height() + View::LabelPadding.height() * 2);
66 const float top = rect.height() - label_size.height() -
67 Cursor::Offset - Cursor::ArrowSize - 0.5f;
68 const float height = label_size.height();
70 if (time_ > other->time())
71 return QRectF(x, top, label_size.width(), height);
73 return QRectF(x - label_size.width(), top,
74 label_size.width(), height);
77 void Cursor::paint_label(QPainter &p, const QRect &rect)
79 const shared_ptr<Cursor> other(get_other_cursor());
82 const unsigned int prefix = view_.tick_prefix();
84 compute_text_size(p, prefix);
85 const QRectF r(get_label_rect(rect));
87 const QPointF left_points[] = {
91 QPointF(r.left() + ArrowSize, r.bottom()),
92 QPointF(r.left(), rect.bottom()),
95 const QPointF right_points[] = {
99 QPointF(r.right() - ArrowSize, r.bottom()),
100 QPointF(r.right(), rect.bottom()),
103 const QPointF left_highlight_points[] = {
104 QPointF(r.left() + 1, r.top() + 1),
105 QPointF(r.right() - 1, r.top() + 1),
106 QPointF(r.right() - 1, r.bottom() - 1),
107 QPointF(r.left() + ArrowSize - 1, r.bottom() - 1),
108 QPointF(r.left() + 1, rect.bottom() - 1),
111 const QPointF right_highlight_points[] = {
112 QPointF(r.right() - 1, r.top() + 1),
113 QPointF(r.left() + 1, r.top() + 1),
114 QPointF(r.left() + 1, r.bottom() - 1),
115 QPointF(r.right() - ArrowSize + 1, r.bottom() - 1),
116 QPointF(r.right() - 1, rect.bottom() - 1),
119 const QPointF *const points = (time_ > other->time()) ?
120 left_points : right_points;
121 const QPointF *const highlight_points = (time_ > other->time()) ?
122 left_highlight_points : right_highlight_points;
125 p.setPen(highlight_pen());
126 p.setBrush(Qt::transparent);
127 p.drawPolygon(points, countof(left_points));
130 p.setPen(Qt::transparent);
131 p.setBrush(FillColour);
132 p.drawPolygon(points, countof(left_points));
134 p.setPen(HighlightColour);
135 p.setBrush(Qt::transparent);
136 p.drawPolygon(highlight_points, countof(left_highlight_points));
138 p.setPen(LineColour);
139 p.setBrush(Qt::transparent);
140 p.drawPolygon(points, countof(left_points));
142 p.setPen(TextColour);
143 p.drawText(r, Qt::AlignCenter | Qt::AlignVCenter,
144 pv::util::format_time(time_, prefix, 2));
147 void Cursor::compute_text_size(QPainter &p, unsigned int prefix)
149 text_size_ = p.boundingRect(QRectF(), 0,
150 pv::util::format_time(time_, prefix, 2)).size();
153 shared_ptr<Cursor> Cursor::get_other_cursor() const
155 const CursorPair &cursors = view_.cursors();
156 return (cursors.first().get() == this) ?
157 cursors.second() : cursors.first();