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/*
* This file is part of the PulseView project.
*
* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "cursor.hpp"
#include "pv/util.hpp"
#include "ruler.hpp"
#include "view.hpp"
#include <QApplication>
#include <QBrush>
#include <QMenu>
#include <QPainter>
#include <QPointF>
#include <QRect>
#include <QRectF>
#include <cassert>
#include <cstdio>
#include <limits>
using std::abs; // NOLINT. Force usage of std::abs() instead of C's abs().
using std::shared_ptr;
namespace pv {
namespace views {
namespace trace {
const QColor Cursor::FillColor(52, 101, 164);
Cursor::Cursor(View &view, double time) :
TimeMarker(view, FillColor, time)
{
}
bool Cursor::enabled() const
{
return view_.cursors_shown();
}
QString Cursor::get_text() const
{
const shared_ptr<Cursor> other = get_other_cursor();
const pv::util::Timestamp& diff = abs(time_ - other->time_);
return Ruler::format_time_with_distance(
diff, view_.ruler()->get_ruler_time_from_absolute_time(time_),
view_.tick_prefix(), view_.time_unit(), view_.tick_precision());
}
QRectF Cursor::label_rect(const QRectF &rect) const
{
const shared_ptr<Cursor> other(get_other_cursor());
assert(other);
const float x = get_x();
QFontMetrics m(QApplication::font());
QSize text_size = m.boundingRect(get_text()).size();
const QSizeF label_size(
text_size.width() + LabelPadding.width() * 2,
text_size.height() + LabelPadding.height() * 2);
const float top = rect.height() - label_size.height() -
TimeMarker::ArrowSize - 0.5f;
const float height = label_size.height();
const pv::util::Timestamp& other_time = other->time();
if (time_ > other_time ||
(abs(time_ - other_time).is_zero() && this > other.get()))
return QRectF(x, top, label_size.width(), height);
else
return QRectF(x - label_size.width(), top, label_size.width(), height);
}
QMenu *Cursor::create_header_context_menu(QWidget *parent)
{
QMenu *const menu = new QMenu(parent);
QAction *const snap_disable = new QAction(tr("Disable snapping"), this);
snap_disable->setCheckable(true);
snap_disable->setChecked(snapping_disabled_);
connect(snap_disable, &QAction::toggled, this, [=](bool checked){snapping_disabled_ = checked;});
menu->addAction(snap_disable);
return menu;
}
shared_ptr<Cursor> Cursor::get_other_cursor() const
{
const shared_ptr<CursorPair> cursors(view_.cursors());
assert(cursors);
return (cursors->first().get() == this) ?
cursors->second() : cursors->first();
}
} // namespace trace
} // namespace views
} // namespace pv
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