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kbibtex/src/webquerycsb.cpp

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/***************************************************************************
* Copyright (C) 2004-2009 by Thomas Fischer *
* fischer@unix-ag.uni-kl.de *
* *
* 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 <qlabel.h>
#include <qlayout.h>
#include <qregexp.h>
#include <qbuffer.h>
#include <qcstring.h>
#include <qiodevice.h>
#include <qspinbox.h>
#include <qcheckbox.h>
#include <qfile.h>
#include <qdatetime.h>
#include <klocale.h>
#include <kmessagebox.h>
#include <kio/netaccess.h>
#include <klineedit.h>
#include <kcombobox.h>
#include <kpushbutton.h>
#include <kiconloader.h>
#include <settings.h>
#include "webquerycsb.h"
namespace KBibTeX
{
WebQueryCSBWidget::WebQueryCSBWidget( QWidget *parent, const char *name )
: WebQueryWidget( parent, name )
{
init();
Settings *settings = Settings::self();
QString value = settings->getWebQueryDefault( "CSB_query" );
value = value == QString::null ? "" : value;
lineEditQuery->setText( value );
value = settings->getWebQueryDefault( "CSB_field" );
value = value == QString::null || value.isEmpty() ? "0" : value;
comboBoxField->setCurrentItem( value.toInt() );
value = settings->getWebQueryDefault( "CSB_yearCheck" );
value = value == QString::null || value.isEmpty() ? "0" : value;
checkBoxYear->setChecked( value == "1" );
value = settings->getWebQueryDefault( "CSB_yearType" );
value = value == QString::null || value.isEmpty() ? "0" : value;
comboBoxYear->setCurrentItem( value.toInt() );
value = settings->getWebQueryDefault( "CSB_yearValue" );
value = value == QString::null ? "2000" : value;
spinBoxYear->setValue( value.toInt() );
value = settings->getWebQueryDefault( "CSB_sortBy" );
value = value == QString::null || value.isEmpty() ? "0" : value;
comboBoxSortBy->setCurrentItem( value.toInt() );
value = settings->getWebQueryDefault( "CSB_onlinePapersOnly" );
value = value == QString::null || value.isEmpty() ? "0" : value;
checkBoxOnlinePapersOnly->setChecked( value == "1" );
slotTextChanged( value, true );
}
void WebQueryCSBWidget::init()
{
QVBoxLayout *vLayout = new QVBoxLayout( this, 0, KDialog::spacingHint() );
QHBoxLayout *hLayout = new QHBoxLayout( );
vLayout->addLayout( hLayout );
KPushButton *clearSearchText = new KPushButton( this );
clearSearchText->setIconSet( QIconSet( SmallIcon( "locationbar_erase" ) ) );
hLayout->addWidget( clearSearchText );
QLabel *label = new QLabel( i18n( "Search &term:" ), this );
hLayout->addWidget( label );
lineEditQuery = new KLineEdit( this );
KCompletion *completionQuery = lineEditQuery->completionObject();
hLayout->addWidget( lineEditQuery );
label->setBuddy( lineEditQuery );
hLayout->addSpacing( KDialog::spacingHint() * 2 );
label = new QLabel( i18n( "Here, \"Field\" refers to a parameter for the CSB search (author, title, any)", "&Field:" ), this );
hLayout->addWidget( label );
comboBoxField = new KComboBox( false, this );
hLayout->addWidget( comboBoxField );
label->setBuddy( comboBoxField );
connect( clearSearchText, SIGNAL( clicked() ), lineEditQuery, SLOT( clear() ) );
connect( lineEditQuery, SIGNAL( textChanged( const QString& ) ), this, SLOT( slotTextChanged( const QString& ) ) );
hLayout->setStretchFactor( lineEditQuery, 5 );
connect( lineEditQuery, SIGNAL( returnPressed() ), this, SIGNAL( startSearch() ) );
connect( lineEditQuery, SIGNAL( returnPressed( const QString& ) ), completionQuery, SLOT( addItem( const QString& ) ) );
hLayout = new QHBoxLayout( );
vLayout->addLayout( hLayout );
label = new QLabel( i18n( "&Number of results:" ), this );
hLayout->addWidget( label );
spinBoxMaxHits = new QSpinBox( 1, 500, 1, this );
spinBoxMaxHits->setValue( 10 );
hLayout->setStretchFactor( spinBoxMaxHits, 3 );
hLayout->addWidget( spinBoxMaxHits );
label->setBuddy( spinBoxMaxHits );
hLayout->addSpacing( KDialog::spacingHint() * 2 );
checkBoxYear = new QCheckBox( i18n( "&Year:" ), this );
hLayout->setStretchFactor( checkBoxYear, 1 );
checkBoxYear->setChecked( true );
hLayout->addWidget( checkBoxYear );
connect( checkBoxYear, SIGNAL( toggled( bool ) ), this, SLOT( slotYearCheckToggled() ) );
comboBoxYear = new KComboBox( false, this );
hLayout->setStretchFactor( comboBoxYear, 3 );
hLayout->addWidget( comboBoxYear );
spinBoxYear = new QSpinBox( 1800, 2100, 1, this );
spinBoxYear->setValue( QDate::currentDate().year() );
hLayout->setStretchFactor( spinBoxYear, 6 );
hLayout->addWidget( spinBoxYear );
hLayout->addSpacing( KDialog::spacingHint() * 2 );
label = new QLabel( i18n( "Sort &by:" ), this );
hLayout->addWidget( label );
comboBoxSortBy = new KComboBox( false, this );
hLayout->setStretchFactor( comboBoxSortBy, 8 );
hLayout->addWidget( comboBoxSortBy );
label->setBuddy( comboBoxSortBy );
hLayout = new QHBoxLayout( );
vLayout->addLayout( hLayout );
checkBoxOnlinePapersOnly = new QCheckBox( i18n( "Online papers only" ), this );
hLayout->addWidget( checkBoxOnlinePapersOnly );
comboBoxField->insertItem( i18n( "any" ) );
comboBoxField->insertItem( i18n( "author" ) );
comboBoxField->insertItem( i18n( "title" ) );
comboBoxYear->insertItem( i18n( "exact" ) );
comboBoxYear->insertItem( i18n( "until" ) );
comboBoxYear->insertItem( i18n( "from" ) );
comboBoxYear->setCurrentItem( 1 );
comboBoxSortBy->insertItem( i18n( "none" ) );
comboBoxSortBy->insertItem( i18n( "score" ) );
comboBoxSortBy->insertItem( i18n( "year" ) );
}
void WebQueryCSBWidget::slotYearCheckToggled()
{
bool yearEnabled = checkBoxYear->isChecked();
comboBoxYear->setEnabled( yearEnabled );
spinBoxYear->setEnabled( yearEnabled );
}
WebQueryCSB::WebQueryCSB( QWidget* parent ): WebQuery( parent )
{
m_importer = new BibTeX::FileImporterBibTeX( FALSE );
m_importer->setIgnoreComments( TRUE );
m_widget = new WebQueryCSBWidget( parent );
}
WebQueryCSB::~WebQueryCSB()
{
delete m_widget;
delete m_importer;
}
QString WebQueryCSB::title()
{
return i18n( "Computer Science Bibliographies" );
}
QString WebQueryCSB::disclaimer()
{
return i18n( "Copyright for the Bibliography Collection" );
}
QString WebQueryCSB::disclaimerURL()
{
return "http://liinwww.ira.uka.de/bibliography/Copyright.html";
}
WebQueryWidget *WebQueryCSB::widget()
{
return m_widget;
}
void WebQueryCSB::query()
{
WebQuery::query();
Settings *settings = Settings::self();
settings->setWebQueryDefault( "CSB_query", m_widget->lineEditQuery->text() );
settings->setWebQueryDefault( "CSB_field", QString::number( m_widget->comboBoxField->currentItem() ) );
settings->setWebQueryDefault( "CSB_yearCheck", m_widget->checkBoxYear->isChecked() ? "1" : "0" );
settings->setWebQueryDefault( "CSB_yearType", QString::number( m_widget->comboBoxYear->currentItem() ) );
settings->setWebQueryDefault( "CSB_yearValue", QString::number( m_widget->spinBoxYear->value() ) );
settings->setWebQueryDefault( "CSB_sortBy", QString::number( m_widget->comboBoxSortBy->currentItem() ) );
settings->setWebQueryDefault( "CSB_onlinePapersOnly", m_widget->checkBoxOnlinePapersOnly->isChecked() ? "1" : "0" );
setNumStages( 1 );
int numberOfResults = m_widget->spinBoxMaxHits->value();
QString searchTerm = m_widget->lineEditQuery->text().stripWhiteSpace().replace( '$', "" );
QString year;
if ( m_widget->checkBoxYear->isChecked() )
{
switch ( m_widget->comboBoxYear->currentItem() )
{
case 1: year = QString( "before=%1" ).arg( m_widget->spinBoxYear->value() ); break;
case 2: year = QString( "since=%1" ).arg( m_widget->spinBoxYear->value() ); break;
default: year = QString( "year=%1" ).arg( m_widget->spinBoxYear->value() ); break;
}
}
QString field;
switch ( m_widget->comboBoxField->currentItem() )
{
case 1: field = "au"; break;
case 2: field = "ti"; break;
default: field = ""; break;
}
QString sortBy;
switch ( m_widget->comboBoxSortBy->currentItem() )
{
case 1: sortBy = "&sort=score"; break;
case 2: sortBy = "&sort=year"; break;
default: sortBy = ""; break;
}
QString onlinePapersOnly = m_widget->checkBoxOnlinePapersOnly->isChecked() ? "&online=on" : "";
KURL url = KURL( QString( "http://liinwww.ira.uka.de/csbib?query=%4&results=bibtex&maxnum=%1&%2&field=%3" ).arg( numberOfResults ).arg( year ).arg( field ).arg( searchTerm.replace( "%", "%25" ).replace( "+", "%2B" ).replace( " ", "%20" ).replace( "#", "%23" ).replace( "&", "%26" ).replace( "?", "%3F" ) ).append( onlinePapersOnly ).append( sortBy ) );
QString rawText = download( url );
if ( rawText != NULL && !m_aborted )
{
QRegExp removeXML( "<[^>]+>" );
rawText.replace( removeXML, "" );
BibTeX::FileImporterBibTeX importer( FALSE );
importer.setIgnoreComments( TRUE );
QBuffer buffer;
buffer.open( IO_WriteOnly );
QTextStream ts( &buffer );
ts.setEncoding( QTextStream::UnicodeUTF8 );
ts << rawText << endl;
buffer.close();
buffer.open( IO_ReadOnly );
BibTeX::File *tmpBibFile = importer.load( &buffer );
buffer.close();
if ( tmpBibFile != NULL && tmpBibFile->count() > 0 )
{
for ( BibTeX::File::ElementList::iterator it = tmpBibFile->begin(); !m_aborted && it != tmpBibFile->end(); ++it )
{
BibTeX::Entry *entry = dynamic_cast<BibTeX::Entry*>( *it );
if ( entry != NULL )
emit foundEntry( new BibTeX::Entry( entry ), false );
}
setEndSearch( WebQuery::statusSuccess );
}
else
setEndSearch( WebQuery::statusError );
if ( tmpBibFile != NULL )
delete tmpBibFile;
}
else if ( !m_aborted )
{
QString message = KIO::NetAccess::lastErrorString();
if ( message.isEmpty() )
message.prepend( '\n' );
message.prepend( QString( i18n( "Querying database '%1' failed." ) ).arg( title() ) );
KMessageBox::error( m_parent, message );
setEndSearch( WebQuery::statusError );
}
else
setEndSearch( WebQuery::statusAborted );
}
}
#include "webquerycsb.moc"
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