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[vlc] / modules / gui / qt4 / dialogs / messages.cpp
1 /*****************************************************************************
2  * Messages.cpp : Information about an item
3  ****************************************************************************
4  * Copyright (C) 2006 the VideoLAN team
5  * $Id: Messages.cpp 16024 2006-07-13 13:51:05Z xtophe $
6  *
7  * Authors: Jean-Baptiste Kempf <jb (at) videolan.org>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22  *****************************************************************************/
23
24 #include "dialogs/messages.hpp"
25 #include "dialogs_provider.hpp"
26 #include "util/qvlcframe.hpp"
27 #include "qt4.hpp"
28 #include <QSpacerItem>
29 #include <QSpinBox>
30 #include <QLabel>
31 #include <QTextEdit>
32 #include <QTextCursor>
33 #include <QFileDialog>
34 #include <QTextStream>
35 #include <QMessageBox>
36
37 MessagesDialog *MessagesDialog::instance = NULL;
38
39 MessagesDialog::MessagesDialog( intf_thread_t *_p_intf) :  QVLCFrame( _p_intf )
40 {
41     setWindowTitle( _("Messages" ) );
42     resize(600, 400);
43
44     QGridLayout *layout = new QGridLayout(this);
45     QPushButton *closeButton = new QPushButton(qtr("&Close"));
46     QPushButton *clearButton = new QPushButton(qtr("&Clear"));
47     QPushButton *saveLogButton = new QPushButton(qtr("&Save as..."));
48     verbosityBox = new QSpinBox();
49     verbosityBox->setRange(0, 2);
50     verbosityBox->setValue(config_GetInt(p_intf, "verbose"));
51     verbosityBox->setWrapping(true);
52     verbosityBox->setMaximumWidth( 50 );
53     QLabel *verbosityLabel = new QLabel(qtr("Verbosity Level"));
54     messages = new QTextEdit();
55     messages->setReadOnly(true);
56     messages->setGeometry(0, 0, 440, 600);
57     messages->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
58
59     layout->addWidget(messages, 0, 0, 1, 0);
60     layout->addWidget(verbosityLabel, 1, 0, 1,1 );
61     layout->addWidget(verbosityBox, 1, 1 );
62     layout->addItem( new QSpacerItem( 20, 20, QSizePolicy::Expanding ), 1,2 );
63     layout->addWidget(saveLogButton, 1, 3 );
64     layout->addWidget(clearButton, 1, 4 );
65     layout->addWidget(closeButton, 1, 5 );
66
67     BUTTONACT( closeButton, close() );
68     BUTTONACT( clearButton, clear() );
69     BUTTONACT( saveLogButton, save() );
70     ON_TIMEOUT( updateLog() );
71 }
72
73 MessagesDialog::~MessagesDialog()
74 {
75 }
76
77 void MessagesDialog::updateLog()
78 {
79     msg_subscription_t *p_sub = p_intf->p_sys->p_sub;
80     int i_start;
81
82     vlc_mutex_lock( p_sub->p_lock );
83     int i_stop = *p_sub->pi_stop;
84     vlc_mutex_unlock( p_sub->p_lock );
85
86     messages->textCursor().movePosition( QTextCursor::End );
87     if( p_sub->i_start != i_stop )
88     {
89         for( i_start = p_sub->i_start;
90                 i_start != i_stop;
91                 i_start = (i_start+1) % VLC_MSG_QSIZE )
92         {
93             if( p_sub->p_msg[i_start].i_type == VLC_MSG_INFO ||
94                 p_sub->p_msg[i_start].i_type == VLC_MSG_ERR ||
95                 p_sub->p_msg[i_start].i_type == VLC_MSG_WARN &&
96                     verbosityBox->value() >= 1 ||
97                 p_sub->p_msg[i_start].i_type == VLC_MSG_DBG &&
98                     verbosityBox->value() >= 2 )
99             {
100                 messages->setFontItalic(true);
101                 messages->setTextColor("darkBlue");
102                 messages->insertPlainText(p_sub->p_msg[i_start].psz_module);
103             }
104             else
105                 continue;
106
107             switch( p_sub->p_msg[i_start].i_type )
108             {
109                 case VLC_MSG_INFO:
110                     messages->setTextColor("blue");
111                     messages->insertPlainText(" info: ");
112                     break;
113                 case VLC_MSG_ERR:
114                     messages->setTextColor("red");
115                     messages->insertPlainText(" error: ");
116                     break;
117                 case VLC_MSG_WARN:
118                     messages->setTextColor("green");
119                     messages->insertPlainText(" warning: ");
120                     break;
121                 case VLC_MSG_DBG:
122                 default:
123                     messages->setTextColor("grey");
124                     messages->insertPlainText(" debug: ");
125                     break;
126             }
127
128             /* Add message Regular black Font */
129             messages->setFontItalic(false);
130             messages->setTextColor("black");
131             messages->insertPlainText( qfu(p_sub->p_msg[i_start].psz_msg) );
132             messages->insertPlainText( "\n" );
133         }
134         messages->ensureCursorVisible();
135
136         vlc_mutex_lock( p_sub->p_lock );
137         p_sub->i_start = i_start;
138         vlc_mutex_unlock( p_sub->p_lock );
139     }
140 }
141
142 void MessagesDialog::close()
143 {
144     this->toggleVisible();
145 }
146
147 void MessagesDialog::clear()
148 {
149     messages->clear();
150 }
151
152 bool MessagesDialog::save()
153 {
154     QString saveLogFileName = QFileDialog::getSaveFileName(
155             this, qtr("Choose a filename to save the logs under..."),
156             p_intf->p_libvlc->psz_homedir,
157             "Texts / Logs (*.log *.txt);; All (*.*) ");
158
159     if( saveLogFileName != NULL )
160     {
161         QFile file(saveLogFileName);
162         if (!file.open(QFile::WriteOnly | QFile::Text)) {
163             QMessageBox::warning(this, qtr("Application"),
164                     qtr("Cannot write file %1:\n%2.")
165                     .arg(saveLogFileName)
166                     .arg(file.errorString()));
167             return false;
168         }
169
170         QTextStream out(&file);
171         out << messages->toPlainText() << "\n";
172
173         return true;
174     }
175     return false;
176 }