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"
24 #include "pv/util.hpp"
32 using std::shared_ptr;
38 const int CursorPair::DeltaPadding = 8;
40 CursorPair::CursorPair(View &view) :
41 first_(new Cursor(view, 0.0)),
42 second_(new Cursor(view, 1.0)),
47 shared_ptr<Cursor> CursorPair::first() const
52 shared_ptr<Cursor> CursorPair::second() const
57 QRectF CursorPair::get_label_rect(const QRect &rect) const
59 const QSizeF label_size(
60 text_size_.width() + View::LabelPadding.width() * 2,
61 text_size_.height() + View::LabelPadding.height() * 2);
62 const pair<float, float> offsets(get_cursor_offsets());
63 const pair<float, float> normal_offsets(
64 (offsets.first < offsets.second) ? offsets :
65 make_pair(offsets.second, offsets.first));
67 const float height = label_size.height();
68 const float left = max(normal_offsets.first + DeltaPadding, -height);
69 const float right = min(normal_offsets.second - DeltaPadding,
70 (float)rect.width() + height);
72 return QRectF(left, rect.height() - label_size.height() -
73 Cursor::ArrowSize - Cursor::Offset - 0.5f,
74 right - left, height);
77 void CursorPair::draw_markers(QPainter &p, const QRect &rect)
82 const unsigned int prefix = view_.tick_prefix();
84 compute_text_size(p, prefix);
85 QRectF delta_rect(get_label_rect(rect));
87 const int radius = delta_rect.height() / 2;
88 const QRectF text_rect(delta_rect.intersected(
89 rect).adjusted(radius, 0, -radius, 0));
90 if(text_rect.width() >= text_size_.width())
92 const int highlight_radius = delta_rect.height() / 2 - 2;
94 p.setBrush(Cursor::FillColour);
95 p.setPen(Cursor::LineColour);
96 p.drawRoundedRect(delta_rect, radius, radius);
98 delta_rect.adjust(1, 1, -1, -1);
99 p.setPen(Cursor::HighlightColour);
100 p.drawRoundedRect(delta_rect, highlight_radius, highlight_radius);
102 p.setPen(Cursor::TextColour);
103 p.drawText(text_rect, Qt::AlignCenter | Qt::AlignVCenter,
104 pv::util::format_time(second_->time() - first_->time(), prefix, 2));
107 // Paint the cursor markers
108 first_->paint_label(p, rect);
109 second_->paint_label(p, rect);
112 void CursorPair::draw_viewport_background(QPainter &p,
116 p.setBrush(QBrush(View::CursorAreaColour));
118 const pair<float, float> offsets(get_cursor_offsets());
119 const int l = (int)max(min(
120 offsets.first, offsets.second), 0.0f);
121 const int r = (int)min(max(
122 offsets.first, offsets.second), (float)rect.width());
124 p.drawRect(l, 0, r - l, rect.height());
127 void CursorPair::draw_viewport_foreground(QPainter &p,
133 first_->paint(p, rect);
134 second_->paint(p, rect);
137 void CursorPair::compute_text_size(QPainter &p, unsigned int prefix)
142 text_size_ = p.boundingRect(QRectF(), 0, pv::util::format_time(
143 second_->time() - first_->time(), prefix, 2)).size();
146 pair<float, float> CursorPair::get_cursor_offsets() const
151 return pair<float, float>(
152 (first_->time() - view_.offset()) / view_.scale(),
153 (second_->time() - view_.offset()) / view_.scale());