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.h"
28 using namespace boost;
34 const int CursorPair::DeltaPadding = 8;
36 CursorPair::CursorPair(View &view) :
37 _first(new Cursor(view, 0.0)),
38 _second(new Cursor(view, 1.0)),
43 shared_ptr<Cursor> CursorPair::first() const
48 shared_ptr<Cursor> CursorPair::second() const
53 QRectF CursorPair::get_label_rect(const QRect &rect) const
55 const QSizeF label_size(
56 _text_size.width() + View::LabelPadding.width() * 2,
57 _text_size.height() + View::LabelPadding.height() * 2);
58 const pair<float, float> offsets(get_cursor_offsets());
59 const pair<float, float> normal_offsets(
60 (offsets.first < offsets.second) ? offsets :
61 make_pair(offsets.second, offsets.first));
63 const float height = label_size.height();
64 const float left = max(normal_offsets.first + DeltaPadding, -height);
65 const float right = min(normal_offsets.second - DeltaPadding,
66 (float)rect.width() + height);
68 return QRectF(left, rect.height() - label_size.height() -
69 Cursor::ArrowSize - Cursor::Offset - 0.5f,
70 right - left, height);
73 void CursorPair::draw_markers(QPainter &p,
74 const QRect &rect, unsigned int prefix)
79 compute_text_size(p, prefix);
80 QRectF delta_rect(get_label_rect(rect));
82 const int radius = delta_rect.height() / 2;
83 const QRectF text_rect(delta_rect.intersected(
84 rect).adjusted(radius, 0, -radius, 0));
85 if(text_rect.width() >= _text_size.width())
87 const int highlight_radius = delta_rect.height() / 2 - 2;
89 p.setBrush(Cursor::FillColour);
90 p.setPen(Cursor::LineColour);
91 p.drawRoundedRect(delta_rect, radius, radius);
93 delta_rect.adjust(1, 1, -1, -1);
94 p.setPen(Cursor::HighlightColour);
95 p.drawRoundedRect(delta_rect, highlight_radius, highlight_radius);
97 p.setPen(Cursor::TextColour);
98 p.drawText(text_rect, Qt::AlignCenter | Qt::AlignVCenter,
99 Ruler::format_time(_second->time() - _first->time(), prefix, 2));
102 // Paint the cursor markers
103 _first->paint_label(p, rect, prefix);
104 _second->paint_label(p, rect, prefix);
107 void CursorPair::draw_viewport_background(QPainter &p,
111 p.setBrush(QBrush(View::CursorAreaColour));
113 const pair<float, float> offsets(get_cursor_offsets());
114 const int l = (int)max(min(
115 offsets.first, offsets.second), 0.0f);
116 const int r = (int)min(max(
117 offsets.first, offsets.second), (float)rect.width());
119 p.drawRect(l, 0, r - l, rect.height());
122 void CursorPair::draw_viewport_foreground(QPainter &p,
128 _first->paint(p, rect);
129 _second->paint(p, rect);
132 void CursorPair::compute_text_size(QPainter &p, unsigned int prefix)
137 _text_size = p.boundingRect(QRectF(), 0, Ruler::format_time(
138 _second->time() - _first->time(), prefix, 2)).size();
141 pair<float, float> CursorPair::get_cursor_offsets() const
146 return pair<float, float>(
147 (_first->time() - _view.offset()) / _view.scale(),
148 (_second->time() - _view.offset()) / _view.scale());