summaryrefslogtreecommitdiffstats
path: root/rbutil/rbutilqt/systrace.cpp
blob: 943f34f7b9d53dea974d44566c7e7911ef736d6e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 *
 *   Copyright (C) 2007 by Dominik Riebeling
 *
 * All files in this archive are subject to the GNU General Public License.
 * See the file COPYING in the source tree root for full license agreement.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/

#include <QFileDialog>
#include <QScrollBar>
#include "systrace.h"
#include "ui_systracefrm.h"

#include "rbsettings.h"

QString SysTrace::debugbuffer;
QString SysTrace::lastmessage;
unsigned int SysTrace::repeat = 0;

SysTrace::SysTrace(QWidget *parent) : QDialog(parent)
{
    ui.setupUi(this);
    ui.textTrace->setReadOnly(true);
    ui.textTrace->setLayoutDirection(Qt::LeftToRight);
    refresh();

    connect(ui.buttonClose, SIGNAL(clicked()), this, SLOT(close()));
    connect(ui.buttonSave, SIGNAL(clicked()), this, SLOT(saveCurrentTrace()));
    connect(ui.buttonSavePrevious, SIGNAL(clicked()), this, SLOT(savePreviousTrace()));
    connect(ui.buttonRefresh, SIGNAL(clicked()), this, SLOT(refresh()));
}

void SysTrace::refresh(void)
{
    int pos = ui.textTrace->verticalScrollBar()->value();
    flush();
    ui.textTrace->setHtml("<pre>" + debugbuffer + "</pre>");
    ui.textTrace->verticalScrollBar()->setValue(pos);
    QString oldlog = RbSettings::value(RbSettings::CachePath).toString()
                     + "/rbutil-trace.log";
    ui.buttonSavePrevious->setEnabled(QFileInfo(oldlog).isFile());
}


void SysTrace::save(QString filename)
{
    if(filename.isEmpty())
        filename = RbSettings::value(RbSettings::CachePath).toString()
                    + "/rbutil-trace.log";
    // make sure any repeat detection is flushed
    flush();
    // append save date to the trace. Append it directly instead of using
    // qDebug() as the handler might have been unregistered.
    debugbuffer.append("[SysTrace] saving trace at ");
    debugbuffer.append(QDateTime::currentDateTime().toString(Qt::ISODate));
    debugbuffer.append("\n");
    QFile fh(filename);
    if(!fh.open(QIODevice::WriteOnly))
        return;
    fh.write(debugbuffer.toUtf8(), debugbuffer.size());
    fh.close();
}

void SysTrace::saveCurrentTrace(void)
{
    QString fp = QFileDialog::getSaveFileName(this, tr("Save system trace log"),
                        QDir::homePath(), "*.log");
    if(!fp.isEmpty())
        save(fp);
}


void SysTrace::savePreviousTrace(void)
{
    QString fp = QFileDialog::getSaveFileName(this, tr("Save system trace log"),
                          QDir::homePath(), "*.log");
    if(fp.isEmpty())
        return;

    QString oldlog = RbSettings::value(RbSettings::CachePath).toString()
                     + "/rbutil-trace.log";
    QFile::copy(oldlog, fp);
    return;
}

#if QT_VERSION < 0x050000
void SysTrace::debug(QtMsgType type, const char* msg)
{
    (void)type;
    if(lastmessage != msg) {
        lastmessage = msg;
        flush();
        debugbuffer.append(QString::fromLocal8Bit(msg) + "\n");
#if !defined(NODEBUG)
        fprintf(stderr, "%s\n", msg);
#endif
        repeat = 1;
    }
    else {
        repeat++;
    }
}
#else
void SysTrace::debug(QtMsgType type, const QMessageLogContext &context, const QString &msg)
{
    (void)type;
    QByteArray localMsg = msg.toLocal8Bit();
    if(lastmessage != msg) {
        lastmessage = msg;
        flush();
        debugbuffer.append(msg + "\n");
#if !defined(NODEBUG)
        fprintf(stderr, "%s\n", localMsg.constData());
#endif
        repeat = 1;
    }
    else {
        repeat++;
    }
}
#endif

void SysTrace::flush(void)
{
    if(repeat > 1) {
        debugbuffer.append(
                QString("    (Last message repeated %1 times.)\n").arg(repeat));
#if !defined(NODEBUG)
        fprintf(stderr, "    (Last message repeated %i times.)\n", repeat);
#endif
    }
}


void SysTrace::changeEvent(QEvent *e)
{
    if(e->type() == QEvent::LanguageChange) {
        ui.retranslateUi(this);
    } else {
        QWidget::changeEvent(e);
    }
}