source: smplayer/trunk/src/main.cpp@ 127

/*  smplayer, GUI front-end for mplayer.
    Copyright (C) 2006-2012 Ricardo Villalba <rvm@users.sourceforge.net>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#include <QApplication>
#include <QFile>
#include <QTime>
#include <QDir>

#include "smplayer.h"
#include "global.h"
#include "helper.h"
#include "paths.h"

#include <stdio.h>

#if USE_QTLOCKEDFILE
#define USE_LOCKS 1
#if USE_LOCKS
#include "qtlockedfile/qtlockedfile.h"
#endif
#endif

using namespace Global;

BaseGui * basegui_instance = 0;

QFile output_log;

void myMessageOutput( QtMsgType type, const char *msg ) {
        static QStringList saved_lines;
        static QString orig_line;
        static QString line2;
        static QRegExp rx_log;

        if (pref) {
                if (!pref->log_smplayer) return;
                rx_log.setPattern(pref->log_filter);
        } else {
                rx_log.setPattern(".*");
        }

        line2.clear();

        orig_line = QString::fromUtf8(msg);

        switch ( type ) {
                case QtDebugMsg:
                        if (rx_log.indexIn(orig_line) > -1) {
                                #ifndef NO_DEBUG_ON_CONSOLE
                                fprintf( stderr, "Debug: %s\n", orig_line.toLocal8Bit().data() );
                                #endif
                                line2 = orig_line;
                        }
                        break;
                case QtWarningMsg:
                        #ifndef NO_DEBUG_ON_CONSOLE
                        fprintf( stderr, "Warning: %s\n", orig_line.toLocal8Bit().data() );
                        #endif
                        line2 = "WARNING: " + orig_line;
                        break;
                case QtFatalMsg:
                        #ifndef NO_DEBUG_ON_CONSOLE
                        fprintf( stderr, "Fatal: %s\n", orig_line.toLocal8Bit().data() );
                        #endif
                        line2 = "FATAL: " + orig_line;
                        abort();                    // deliberately core dump
                case QtCriticalMsg:
                        #ifndef NO_DEBUG_ON_CONSOLE
                        fprintf( stderr, "Critical: %s\n", orig_line.toLocal8Bit().data() );
                        #endif
                        line2 = "CRITICAL: " + orig_line;
                        break;
        }

        if (line2.isEmpty()) return;

        line2 = "["+ QTime::currentTime().toString("hh:mm:ss:zzz") +"] "+ line2;

        if (basegui_instance) {
                if (!saved_lines.isEmpty()) {
                        // Send saved lines first
                        for (int n=0; n < saved_lines.count(); n++) {
                                basegui_instance->recordSmplayerLog(saved_lines[n]);
                        }
                        saved_lines.clear();
                }
                basegui_instance->recordSmplayerLog(line2);
        } else {
                // GUI is not created yet, save lines for later
                saved_lines.append(line2);
        }

        if (pref) {
                if (pref->save_smplayer_log) {
                        // Save log to file
                        if (!output_log.isOpen()) {
                                // FIXME: the config path may not be initialized if USE_LOCKS is not defined
                                output_log.setFileName( Paths::configPath() + "/smplayer_log.txt" );
                                output_log.open(QIODevice::WriteOnly);
                        }
                        if (output_log.isOpen()) {
                                QString l = line2 + "\r\n";
                                output_log.write(l.toUtf8().constData());
                                output_log.flush();
                        }
                }
        }
}


class MyApplication : public QApplication
{
public:
        MyApplication ( int & argc, char ** argv ) : QApplication(argc, argv) {};
        virtual void commitData ( QSessionManager & /*manager*/ ) {
                // Nothing to do, let the application to close
        }
};

int main( int argc, char ** argv ) 
{
        MyApplication a( argc, argv );
        a.setQuitOnLastWindowClosed(false);
        //a.connect( &a, SIGNAL( lastWindowClosed() ), &a, SLOT( quit() ) );

#if QT_VERSION >= 0x040400
        // Enable icons in menus
        QCoreApplication::setAttribute(Qt::AA_DontShowIconsInMenus, false);
#endif

        // Sets the config path
        QString config_path;

#ifdef PORTABLE_APP
        config_path = a.applicationDirPath();
#else
        // If a smplayer.ini exists in the app path, will use that path
        // for the config file by default
        if (QFile::exists( a.applicationDirPath() + "/smplayer.ini" ) ) {
                config_path = a.applicationDirPath();
                qDebug("main: using existing %s", QString(config_path + "/smplayer.ini").toUtf8().data());
        }
#endif

        QStringList args = a.arguments();
        int pos = args.indexOf("-config-path");
        if ( pos != -1) {
                if (pos+1 < args.count()) {
                        pos++;
                        config_path = args[pos];
                        // Delete from list
                        args.removeAt(pos);
                        args.removeAt(pos-1);
                } else {
                        printf("Error: expected parameter for -config-path\r\n");
                        return SMPlayer::ErrorArgument;
                }
        }

    qInstallMsgHandler( myMessageOutput );

#if USE_LOCKS
        //setIniPath will be set later in global_init, but we need it here
        if (!config_path.isEmpty()) Paths::setConfigPath(config_path);

        QString lock_file = Paths::iniPath() + "/smplayer_init.lock";
        qDebug("main: lock_file: %s", lock_file.toUtf8().data());

        QtLockedFile lk(lock_file);
        lk.open(QFile::ReadWrite);

        if (QDir().exists(Paths::iniPath())) {
                bool lock_ok = lk.lock(QtLockedFile::WriteLock, false);

                if (!lock_ok) {
                        //lock failed
                        qDebug("main: lock failed");

                        // Wait 10 secs max.
                        int n = 100;
                        while ( n > 0) {
                                Helper::msleep(100); // wait 100 ms

                                if (lk.lock(QtLockedFile::WriteLock, false)) break;
                                n--;
                                if ((n % 10) == 0) qDebug("main: waiting %d...", n);
                        }
                        // Continue startup
                }
        }
#endif // USE_LOCKS

        SMPlayer * smplayer = new SMPlayer(config_path);
        SMPlayer::ExitCode c = smplayer->processArgs( args );
        if (c != SMPlayer::NoExit) {
#if USE_LOCKS
                lk.unlock();
#endif
                return c;
        }

        basegui_instance = smplayer->gui();
        a.connect(smplayer->gui(), SIGNAL(quitSolicited()), &a, SLOT(quit()));
        smplayer->start();

#if USE_LOCKS
        bool success = lk.unlock();
        qDebug("Unlocking: %d", success);
#endif

        int r = a.exec();

        basegui_instance = 0;
        delete smplayer;

        if (output_log.isOpen()) output_log.close();

        return r;
}