2 * This file is part of the PulseView project.
4 * Copyright (C) 2013 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
21 #include "cursorpair.hpp"
25 #include "pv/util.hpp"
33 using std::shared_ptr;
39 const int CursorPair::DeltaPadding = 8;
40 const QColor CursorPair::ViewportFillColour(220, 231, 243);
42 CursorPair::CursorPair(View &view) :
44 first_(new Cursor(view, 0.0)),
45 second_(new Cursor(view, 1.0))
49 bool CursorPair::enabled() const
51 return view_.cursors_shown();
54 shared_ptr<Cursor> CursorPair::first() const
59 shared_ptr<Cursor> CursorPair::second() const
64 void CursorPair::set_time(const pv::util::Timestamp& time) {
65 const pv::util::Timestamp delta = second_->time() - first_->time();
66 first_->set_time(time);
67 second_->set_time(time + delta);
70 float CursorPair::get_x() const
72 return (first_->get_x() + second_->get_x()) / 2.0f;
75 QPoint CursorPair::point(const QRect &rect) const
77 return first_->point(rect);
80 pv::widgets::Popup* CursorPair::create_popup(QWidget *parent)
86 QRectF CursorPair::label_rect(const QRectF &rect) const
88 const QSizeF label_size(text_size_ + LabelPadding * 2);
89 const pair<float, float> offsets(get_cursor_offsets());
90 const pair<float, float> normal_offsets(
91 (offsets.first < offsets.second) ? offsets :
92 make_pair(offsets.second, offsets.first));
94 const float height = label_size.height();
95 const float left = max(normal_offsets.first + DeltaPadding, -height);
96 const float right = min(normal_offsets.second - DeltaPadding,
97 (float)rect.width() + height);
99 return QRectF(left, rect.height() - label_size.height() -
100 TimeMarker::ArrowSize - 0.5f,
101 right - left, height);
104 void CursorPair::paint_label(QPainter &p, const QRect &rect, bool hover)
112 const QColor text_colour =
113 ViewItem::select_text_colour(Cursor::FillColour);
115 p.setPen(text_colour);
116 compute_text_size(p);
117 QRectF delta_rect(label_rect(rect));
119 const int radius = delta_rect.height() / 2;
120 const QRectF text_rect(delta_rect.intersected(
121 rect).adjusted(radius, 0, -radius, 0));
122 if (text_rect.width() >= text_size_.width())
124 const int highlight_radius = delta_rect.height() / 2 - 2;
127 p.setBrush(Qt::transparent);
128 p.setPen(highlight_pen());
129 p.drawRoundedRect(delta_rect, radius, radius);
132 p.setBrush(hover ? Cursor::FillColour.lighter() :
134 p.setPen(Cursor::FillColour.darker());
135 p.drawRoundedRect(delta_rect, radius, radius);
137 delta_rect.adjust(1, 1, -1, -1);
138 p.setPen(Cursor::FillColour.lighter());
139 p.drawRoundedRect(delta_rect, highlight_radius, highlight_radius);
141 p.setPen(text_colour);
142 p.drawText(text_rect, Qt::AlignCenter | Qt::AlignVCenter,
147 void CursorPair::paint_back(QPainter &p, const ViewItemPaintParams &pp) {
152 p.setBrush(QBrush(ViewportFillColour));
154 const pair<float, float> offsets(get_cursor_offsets());
155 const int l = (int)max(min(
156 offsets.first, offsets.second), 0.0f);
157 const int r = (int)min(max(
158 offsets.first, offsets.second), (float)pp.width());
160 p.drawRect(l, pp.top(), r - l, pp.height());
163 QString CursorPair::format_string()
165 const pv::util::SIPrefix prefix = view_.tick_prefix();
166 const pv::util::Timestamp diff = abs(second_->time() - first_->time());
168 const QString s1 = Ruler::format_time_with_distance(
169 diff, diff, prefix, view_.time_unit(), view_.tick_precision(), false);
170 const QString s2 = util::format_time_si(
171 1 / diff, pv::util::SIPrefix::unspecified, 4, "Hz", false);
173 return QString("%1 / %2").arg(s1).arg(s2);
176 void CursorPair::compute_text_size(QPainter &p)
181 text_size_ = p.boundingRect(QRectF(), 0, format_string()).size();
184 pair<float, float> CursorPair::get_cursor_offsets() const
189 return pair<float, float>(
190 ((first_->time() - view_.offset()) / view_.scale()).convert_to<float>(),
191 ((second_->time() - view_.offset()) / view_.scale()).convert_to<float>());