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 bool Cursor::enabled() const
50 return view_.cursors_shown();
53 QString Cursor::get_text() const
55 return pv::util::format_time(time_, view_.tick_prefix(), 2);
58 QRectF Cursor::label_rect(const QRectF &rect) const
60 const shared_ptr<Cursor> other(get_other_cursor());
63 const float x = (time_ - view_.offset()) / view_.scale();
65 QFontMetrics m(QApplication::font());
66 QSize text_size = m.boundingRect(get_text()).size();
68 const QSizeF label_size(
69 text_size.width() + View::LabelPadding.width() * 2,
70 text_size.height() + View::LabelPadding.height() * 2);
71 const float top = rect.height() - label_size.height() -
72 TimeMarker::Offset - TimeMarker::ArrowSize - 0.5f;
73 const float height = label_size.height();
75 if (time_ > other->time())
76 return QRectF(x, top, label_size.width(), height);
78 return QRectF(x - label_size.width(), top,
79 label_size.width(), height);
82 shared_ptr<Cursor> Cursor::get_other_cursor() const
84 const shared_ptr<CursorPair> cursors(view_.cursors());
86 return (cursors->first().get() == this) ?
87 cursors->second() : cursors->first();