trapper: trapperconf.cpp Source File

00001 /*******************************************************************************
00002  *                                                                             *
00003  *   Copyright (C) 2003  Erik Sjolund,  (<html>Erik Sj&ouml;lund</html>)       *
00004  *                       Center for Genomics and Bioinformatics,               *
00005  *                       Karolinska Institutet,                                *
00006  *                       Stockholm,                                            *
00007  *                       Sweden                                                *
00008  *                                                                             *
00009  *  Author: Erik Sjolund                                                       *
00010  *  Email: erik.sjolund@adivo.se                                               *
00011  *                                                                             *
00012  *******************************************************************************
00013  */
00014 #include "trapperconf.h"
00015 #include <qmessagebox.h>
00016 #include <qfile.h>
00017 #include <cstdlib>
00018 
00019 TrapperConf * TrapperConf::s_instance = NULL;
00020 
00021 TrapperConf::TrapperConf()
00022         : QObject()
00023 {
00024 
00025 
00026   /*
00027     QString name = fileName();
00028     QFile confFile( name );
00029     if ( !confFile.open( IO_ReadWrite ) )
00030     {
00031         QMessageBox::critical( 0,
00032                                tr( "Critical Error" ),
00033                                tr( "Cannot open configuration file %1" ).arg( fileName() ) );
00034         exit(1);
00035     }
00036   */
00037 
00038 }
00039 
00040 void TrapperConf::loadDom(QFile * file)
00041 {
00042 
00043 
00044   confFile = file;
00045 
00046     QString errorMsg;
00047     int errorLine;
00048     int errorColumn;
00049     Q_CHECK_PTR( confFile );
00050     if ( !domTree.setContent( confFile , &errorMsg, &errorLine, &errorColumn) )
00051     {
00052         QMessageBox::critical( 0,
00053                                tr( "Critical Error" ),
00054                                tr( "Parsing error for configuration file %1 Error in line=%2 column=%3 error message=\"%4\"").arg( confFile->name() ).arg(errorLine).arg(errorColumn).arg(errorMsg));
00055         exit(1);
00056     }
00057     return;
00058 }
00059 
00060 void TrapperConf::save()
00061 {
00062 
00063     Q_CHECK_PTR( confFile );
00064   /*
00065     QFile confFile( fileName() );
00066     if ( !confFile.open( IO_WriteOnly ) )
00067     {
00068         QMessageBox::critical( 0,
00069                                tr( "Critical Error" ),
00070                                tr( "Cannot open configuration file %1" ).arg( fileName() ) );
00071         exit(1);
00072     }
00073   */
00074     QTextStream stream( confFile );
00075     QString xml = domTree.toString();
00076     stream << xml;
00077 }
00078 
00079 TrapperConf::~TrapperConf()
00080 {}
00081 
00082 QDomElement TrapperConf::viewModeConf()
00083 {
00084     // get the configuration information from the DOM
00085     QDomElement root = domTree.documentElement();
00086     QDomNode node;
00087     QDomElement element;
00088     node = root.firstChild();
00089     bool found = false;
00090     while ( !node.isNull() )
00091     {
00092         if ( node.isElement() && node.nodeName() == "modeViews" )
00093         {
00094             element = node.toElement();
00095             found = true;
00096             break;
00097         }
00098         node = node.nextSibling();
00099     }
00100     if ( found == false )
00101     {
00102         QMessageBox::critical( 0, tr("Critical Error"), tr("Conf file has bad syntax"));
00103         exit(1);
00104     }
00105     return element;
00106 }
00107 
00108 QStringList TrapperConf::viewModeNames()
00109 {
00110 
00111     QDomElement confElem = viewModeConf();
00112 
00113     QDomNode node = confElem.firstChild();
00114 
00115     QStringList list;
00116     while ( !node.isNull() )
00117     {
00118         if ( node.isElement() && node.nodeName() == "modeView" )
00119         {
00120             QDomElement elem = node.toElement();
00121             Q_ASSERT((elem.hasAttribute("name")  && elem.hasAttribute("zoom")));
00122             QString name = elem.attribute("name", "");
00123             list.append(name);
00124         }
00125         node = node.nextSibling();
00126     }
00127     return list;
00128 }
00129 
00130 TrapperConf * TrapperConf::instance()
00131 {
00132     if ( s_instance == NULL )
00133     {
00134         s_instance = new TrapperConf;
00135     }
00136     return s_instance;
00137 }