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"
26 #include <QApplication>
36 using std::shared_ptr;
41 const QColor Cursor::FillColour(52, 101, 164);
43 Cursor::Cursor(View &view, double time) :
44 TimeMarker(view, FillColour, time)
48 QString Cursor::get_text() const
50 return pv::util::format_time(time_, view_.tick_prefix(), 2);
53 QRectF Cursor::get_label_rect(const QRect &rect) const
55 const shared_ptr<Cursor> other(get_other_cursor());
58 const float x = (time_ - view_.offset()) / view_.scale();
60 QFontMetrics m(QApplication::font());
61 QSize text_size = m.boundingRect(get_text()).size();
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 TimeMarker::Offset - TimeMarker::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 shared_ptr<Cursor> Cursor::get_other_cursor() const
79 const CursorPair &cursors = view_.cursors();
80 return (cursors.first().get() == this) ?
81 cursors.second() : cursors.first();