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, see <http://www.gnu.org/licenses/>.
22 #include "pv/util.hpp"
26 #include <QApplication>
37 using std::abs; // Force usage of std::abs() instead of C's abs().
38 using std::shared_ptr;
44 const QColor Cursor::FillColour(52, 101, 164);
46 Cursor::Cursor(View &view, double time) :
47 TimeMarker(view, FillColour, time)
51 bool Cursor::enabled() const
53 return view_.cursors_shown();
56 QString Cursor::get_text() const
58 const shared_ptr<Cursor> other = get_other_cursor();
59 const pv::util::Timestamp& diff = abs(time_ - other->time_);
61 return Ruler::format_time_with_distance(
62 diff, time_, view_.tick_prefix(), view_.time_unit(), view_.tick_precision());
65 QRectF Cursor::label_rect(const QRectF &rect) const
67 const shared_ptr<Cursor> other(get_other_cursor());
70 const float x = ((time_ - view_.offset())/ view_.scale()).convert_to<float>();
72 QFontMetrics m(QApplication::font());
73 QSize text_size = m.boundingRect(get_text()).size();
75 const QSizeF label_size(
76 text_size.width() + LabelPadding.width() * 2,
77 text_size.height() + LabelPadding.height() * 2);
78 const float top = rect.height() - label_size.height() -
79 TimeMarker::ArrowSize - 0.5f;
80 const float height = label_size.height();
82 const pv::util::Timestamp& other_time = other->time();
84 if (time_ > other_time ||
85 (abs(time_ - other_time).is_zero() && this > other.get()))
86 return QRectF(x, top, label_size.width(), height);
88 return QRectF(x - label_size.width(), top, label_size.width(), height);
91 shared_ptr<Cursor> Cursor::get_other_cursor() const
93 const shared_ptr<CursorPair> cursors(view_.cursors());
95 return (cursors->first().get() == this) ?
96 cursors->second() : cursors->first();
99 } // namespace TraceView