signalbar.cpp revision 1f69aa52ea2e0a73ac502565df8c666ee49cab6a 
1/*
2 * wpa_gui - SignalBar class
3 * Copyright (c) 2011, Kel Modderman <kel@otaku42.de>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 */
14
15#include <cstdio>
16#include <qapplication.h>
17
18#include "signalbar.h"
19
20
21SignalBar::SignalBar(QObject *parent)
22	: QStyledItemDelegate(parent)
23{
24}
25
26
27SignalBar::~SignalBar()
28{
29}
30
31
32void SignalBar::paint(QPainter *painter,
33		      const QStyleOptionViewItem &option,
34		      const QModelIndex &index) const
35{
36	QStyleOptionProgressBar opts;
37	int signal;
38
39	if (index.column() != 3) {
40		QStyledItemDelegate::paint(painter, option, index);
41		return;
42	}
43
44	if (index.data().toInt() > 0)
45		signal = 0 - (256 - index.data().toInt());
46	else
47		signal = index.data().toInt();
48
49	opts.minimum = -95;
50	opts.maximum = -35;
51	if (signal < opts.minimum)
52		opts.progress = opts.minimum;
53	else if (signal > opts.maximum)
54		opts.progress = opts.maximum;
55	else
56		opts.progress = signal;
57
58	opts.text = QString::number(signal) + " dBm";
59	opts.textVisible = true;
60	opts.rect = option.rect;
61
62	QApplication::style()->drawControl(QStyle::CE_ProgressBar,
63					   &opts, painter);
64}
65