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/widgets/popup.hpp>
42 const int TimeMarker::ArrowSize = 4;
43 const int TimeMarker::Offset = 1;
45 TimeMarker::TimeMarker(View &view, const QColor &colour, double time) :
51 updating_value_widget_(false)
55 double TimeMarker::time() const
60 float TimeMarker::get_x() const
62 return (time_ - view_.offset()) / view_.scale();
65 QPoint TimeMarker::point() const
67 return QPoint(get_x(), 0);
70 void TimeMarker::set_time(double time)
75 updating_value_widget_ = true;
76 value_widget_->setValue(time);
77 updating_value_widget_ = false;
83 void TimeMarker::paint(QPainter &p, const QRect &rect)
85 const float x = get_x();
86 p.setPen(colour_.darker());
87 p.drawLine(QPointF(x, rect.top()), QPointF(x, rect.bottom()));
90 QRectF TimeMarker::label_rect(const QRectF &rect) const
92 const float x = (time_ - view_.offset()) / view_.scale();
94 QFontMetrics m(QApplication::font());
95 const float text_width =
96 max(m.boundingRect(get_text()).size().width(), ArrowSize);
97 const float text_height = m.boundingRect("Tg").size().height();
99 const QSizeF label_size(
100 text_width + View::LabelPadding.width() * 2,
101 text_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, top,
107 label_size.width(), height);
110 void TimeMarker::paint_label(QPainter &p, const QRect &rect)
115 const qreal x = (time_ - view_.offset()) / view_.scale();
116 const QRectF r(label_rect(rect));
118 const QPointF points[] = {
121 QPointF(max(r.left(), x - ArrowSize), r.bottom()),
122 QPointF(x, rect.bottom()),
123 QPointF(min(r.right(), x + ArrowSize), r.bottom()),
128 const QPointF highlight_points[] = {
129 QPointF(r.left() + 1, r.top() + 1),
130 QPointF(r.left() + 1, r.bottom() - 1),
131 QPointF(max(r.left() + 1, x - ArrowSize), r.bottom() - 1),
132 QPointF(min(max(r.left() + 1, x), r.right() - 1),
134 QPointF(min(r.right() - 1, x + ArrowSize), r.bottom() - 1),
135 QPointF(r.right() - 1, r.bottom() - 1),
136 QPointF(r.right() - 1, r.top() + 1),
140 p.setPen(highlight_pen());
141 p.setBrush(Qt::transparent);
142 p.drawPolygon(points, countof(points));
145 p.setPen(Qt::transparent);
147 p.drawPolygon(points, countof(points));
149 p.setPen(colour_.lighter());
150 p.setBrush(Qt::transparent);
151 p.drawPolygon(highlight_points, countof(highlight_points));
153 p.setPen(colour_.darker());
154 p.setBrush(Qt::transparent);
155 p.drawPolygon(points, countof(points));
157 p.setPen(select_text_colour(colour_));
158 p.drawText(r, Qt::AlignCenter | Qt::AlignVCenter, get_text());
161 pv::widgets::Popup* TimeMarker::create_popup(QWidget *parent)
163 using pv::widgets::Popup;
165 Popup *const popup = new Popup(parent);
166 QFormLayout *const form = new QFormLayout(popup);
167 popup->setLayout(form);
169 value_widget_ = new QDoubleSpinBox(parent);
170 value_widget_->setDecimals(9);
171 value_widget_->setSuffix("s");
172 value_widget_->setSingleStep(1e-6);
173 value_widget_->setRange(-1.0e9, 1.0e9);
174 value_widget_->setValue(time_);
176 connect(value_widget_, SIGNAL(valueChanged(double)),
177 this, SLOT(on_value_changed(double)));
179 form->addRow(tr("Time"), value_widget_);
184 void TimeMarker::on_value_changed(double value)
186 if (!updating_value_widget_) {