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
32 const int Trace::LabelHitPadding = 2;
34 Trace::Trace(pv::SigSession &session, QString name) :
41 QString Trace::get_name() const
46 void Trace::set_name(QString name)
51 QColor Trace::get_colour() const
56 void Trace::set_colour(QColor colour)
61 int Trace::get_v_offset() const
66 void Trace::set_v_offset(int v_offset)
71 void Trace::paint_label(QPainter &p, int y, int right, bool hover)
78 const QColor colour = get_colour();
81 const QRectF label_rect = get_label_rect(y, right);
84 const QPointF points[] = {
86 label_rect.topRight(),
88 label_rect.bottomRight(),
89 label_rect.bottomLeft()
92 const QPointF highlight_points[] = {
93 QPointF(label_rect.left() + 1, label_rect.top() + 1),
94 QPointF(label_rect.right(), label_rect.top() + 1),
95 QPointF(right - 1, y),
96 QPointF(label_rect.right(), label_rect.bottom() - 1),
97 QPointF(label_rect.left() + 1, label_rect.bottom() - 1)
101 p.setPen(highlight_pen());
102 p.setBrush(Qt::transparent);
103 p.drawPolygon(points, countof(points));
106 p.setPen(Qt::transparent);
107 p.setBrush(hover ? colour.lighter() : colour);
108 p.drawPolygon(points, countof(points));
110 p.setPen(colour.lighter());
111 p.setBrush(Qt::transparent);
112 p.drawPolygon(highlight_points, countof(highlight_points));
114 p.setPen(colour.darker());
115 p.setBrush(Qt::transparent);
116 p.drawPolygon(points, countof(points));
119 p.setPen((colour.lightness() > 64) ? Qt::black : Qt::white);
120 p.drawText(label_rect, Qt::AlignCenter | Qt::AlignVCenter, _name);
123 bool Trace::pt_in_label_rect(int y, int left, int right,
128 const QRectF label = get_label_rect(y, right);
130 QPointF(label.left() - LabelHitPadding,
131 label.top() - LabelHitPadding),
132 QPointF(right, label.bottom() + LabelHitPadding)
136 void Trace::compute_text_size(QPainter &p)
139 p.boundingRect(QRectF(), 0, _name).width(),
140 p.boundingRect(QRectF(), 0, "Tg").height());
143 QRectF Trace::get_label_rect(int y, int right)
145 using pv::view::View;
147 const QSizeF label_size(
148 _text_size.width() + View::LabelPadding.width() * 2,
149 ceilf((_text_size.height() + View::LabelPadding.height() * 2) / 2) * 2);
150 const float label_arrow_length = label_size.height() / 2;
152 right - label_arrow_length - label_size.width() - 0.5,
153 y + 0.5f - label_size.height() / 2,
154 label_size.width(), label_size.height());