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
25 #include "timemarker.hpp"
29 #include <QApplication>
30 #include <QFormLayout>
31 #include <QFontMetrics>
34 #include <pv/util.hpp>
35 #include <pv/widgets/popup.hpp>
43 const int TimeMarker::ArrowSize = 4;
44 const int TimeMarker::Offset = 1;
46 TimeMarker::TimeMarker(View &view, const QColor &colour, double time) :
52 updating_value_widget_(false)
56 double TimeMarker::time() const
61 float TimeMarker::get_x() const
63 return (time_ - view_.offset()) / view_.scale();
66 QPoint TimeMarker::point() const
68 return QPoint(get_x(), 0);
71 void TimeMarker::set_time(double time)
76 updating_value_widget_ = true;
77 value_widget_->setValue(time);
78 updating_value_widget_ = false;
84 void TimeMarker::paint(QPainter &p, const QRect &rect)
86 const float x = get_x();
87 p.setPen(colour_.darker());
88 p.drawLine(QPointF(x, rect.top()), QPointF(x, rect.bottom()));
91 QRectF TimeMarker::get_label_rect(const QRect &rect) const
93 const float x = (time_ - view_.offset()) / view_.scale();
95 QFontMetrics m(QApplication::font());
96 QSize text_size = m.boundingRect(
97 pv::util::format_time(time_, view_.tick_prefix(), 2)).size();
99 const QSizeF label_size(
100 text_size.width() + View::LabelPadding.width() * 2,
101 text_size.height() + View::LabelPadding.height() * 2);
102 const float top = rect.height() - label_size.height() -
103 TimeMarker::Offset - TimeMarker::ArrowSize - 0.5f;
104 const float height = label_size.height();
106 return QRectF(x - label_size.width() / 2 - 0.5f, top,
107 label_size.width(), height);
110 void TimeMarker::paint_label(QPainter &p, const QRect &rect)
112 const qreal x = (time_ - view_.offset()) / view_.scale();
113 const QRectF r(get_label_rect(rect));
115 const QPointF points[] = {
118 QPointF(max(r.left(), x - ArrowSize), r.bottom()),
119 QPointF(x, rect.bottom()),
120 QPointF(min(r.right(), x + ArrowSize), r.bottom()),
125 const QPointF highlight_points[] = {
126 QPointF(r.left() + 1, r.top() + 1),
127 QPointF(r.left() + 1, r.bottom() - 1),
128 QPointF(max(r.left() + 1, x - ArrowSize), r.bottom() - 1),
129 QPointF(min(max(r.left() + 1, x), r.right() - 1),
131 QPointF(min(r.right() - 1, x + ArrowSize), r.bottom() - 1),
132 QPointF(r.right() - 1, r.bottom() - 1),
133 QPointF(r.right() - 1, r.top() + 1),
137 p.setPen(highlight_pen());
138 p.setBrush(Qt::transparent);
139 p.drawPolygon(points, countof(points));
142 p.setPen(Qt::transparent);
144 p.drawPolygon(points, countof(points));
146 p.setPen(colour_.lighter());
147 p.setBrush(Qt::transparent);
148 p.drawPolygon(highlight_points, countof(highlight_points));
150 p.setPen(colour_.darker());
151 p.setBrush(Qt::transparent);
152 p.drawPolygon(points, countof(points));
154 p.setPen(select_text_colour(colour_));
155 p.drawText(r, Qt::AlignCenter | Qt::AlignVCenter,
156 pv::util::format_time(time_, view_.tick_prefix(), 2));
159 pv::widgets::Popup* TimeMarker::create_popup(QWidget *parent)
161 using pv::widgets::Popup;
163 Popup *const popup = new Popup(parent);
164 QFormLayout *const form = new QFormLayout(popup);
165 popup->setLayout(form);
167 value_widget_ = new QDoubleSpinBox(parent);
168 value_widget_->setDecimals(9);
169 value_widget_->setSuffix("s");
170 value_widget_->setSingleStep(1e-6);
171 value_widget_->setRange(-1.0e9, 1.0e9);
172 value_widget_->setValue(time_);
174 connect(value_widget_, SIGNAL(valueChanged(double)),
175 this, SLOT(on_value_changed(double)));
177 form->addRow(tr("Time"), value_widget_);
182 void TimeMarker::on_value_changed(double value)
184 if (!updating_value_widget_) {