goldendict-ng/dictheadwords.cc
2022-03-11 22:00:45 +08:00

370 lines
9.9 KiB
C++

/* This file is (c) 2014 Abs62
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "dictheadwords.hh"
#include "gddebug.hh"
#include "mainwindow.hh"
#include <QRegExp>
#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
#include <QtCore5Compat>
#endif
#include <QDir>
#include <QFileDialog>
#include <QTimer>
#include <QProgressDialog>
#include <QRegularExpression>
#include "wildcard.hh"
#include "gddebug.hh"
#define AUTO_APPLY_LIMIT 150000
DictHeadwords::DictHeadwords( QWidget *parent, Config::Class & cfg_,
Dictionary::Class * dict_ ) :
QDialog(parent)
, cfg( cfg_ )
, dict( dict_ )
, helpAction( this )
{
ui.setupUi( this );
bool fromMainWindow = parent->objectName() == "MainWindow";
if( fromMainWindow )
setAttribute( Qt::WA_DeleteOnClose, false );
setWindowFlags( windowFlags() & ~Qt::WindowContextHelpButtonHint );
if( cfg.headwordsDialog.headwordsDialogGeometry.size() > 0 )
restoreGeometry( cfg.headwordsDialog.headwordsDialogGeometry );
ui.searchModeCombo->addItem( tr( "Text" ), QRegExp::FixedString );
ui.searchModeCombo->addItem( tr( "Wildcards" ), QRegExp::WildcardUnix );
ui.searchModeCombo->addItem( tr( "RegExp" ), QRegExp::RegExp );
ui.searchModeCombo->setCurrentIndex( cfg.headwordsDialog.searchMode );
ui.exportButton->setAutoDefault( false );
ui.OKButton->setAutoDefault( false);
ui.applyButton->setAutoDefault( true );
ui.applyButton->setDefault( true );
ui.matchCase->setChecked( cfg.headwordsDialog.matchCase );
model = new QStringListModel( this );
model->setStringList( headers );
proxy = new QSortFilterProxyModel( this );
proxy->setSourceModel( model );
proxy->setSortCaseSensitivity( Qt::CaseInsensitive );
proxy->setSortLocaleAware( true );
proxy->setDynamicSortFilter( false );
ui.headersListView->setModel( proxy );
ui.headersListView->setEditTriggers( QAbstractItemView::NoEditTriggers );
// very important call, for performance reasons:
ui.headersListView->setUniformItemSizes( true );
delegate = new WordListItemDelegate( ui.headersListView->itemDelegate() );
if( delegate )
ui.headersListView->setItemDelegate( delegate );
ui.autoApply->setChecked( cfg.headwordsDialog.autoApply );
connect( this, SIGNAL( finished( int ) ), this, SLOT( savePos() ) );
if( !fromMainWindow )
{
ui.helpButton->hide();
connect( this, SIGNAL( closeDialog() ), this, SLOT( accept() ) );
}
else
{
connect( ui.helpButton, SIGNAL( clicked() ),
this, SLOT( helpRequested() ) );
helpAction.setShortcut( QKeySequence( "F1" ) );
helpAction.setShortcutContext( Qt::WidgetWithChildrenShortcut );
connect( &helpAction, SIGNAL( triggered() ),
this, SLOT( helpRequested() ) );
addAction( &helpAction );
}
connect( ui.OKButton, SIGNAL( clicked( bool ) ), this, SLOT( okButtonClicked() ) );
connect( ui.exportButton, SIGNAL( clicked( bool ) ), this, SLOT( exportButtonClicked() ) );
connect( ui.applyButton, SIGNAL( clicked( bool ) ), this, SLOT( filterChanged() ) );
connect( ui.autoApply, SIGNAL( stateChanged( int ) ),
this, SLOT( autoApplyStateChanged( int ) ) );
connect( ui.filterLine, SIGNAL( textChanged( QString ) ),
this, SLOT( filterChangedInternal() ) );
connect( ui.searchModeCombo, SIGNAL( currentIndexChanged( int ) ),
this, SLOT( filterChangedInternal() ) );
connect( ui.matchCase, SIGNAL( stateChanged( int ) ),
this, SLOT( filterChangedInternal() ) );
connect( ui.headersListView, SIGNAL( clicked( QModelIndex ) ),
this, SLOT( itemClicked( QModelIndex ) ) );
connect( proxy, SIGNAL( dataChanged( QModelIndex, QModelIndex ) ),
this, SLOT( showHeadwordsNumber() ) );
ui.headersListView->installEventFilter( this );
setup( dict_ );
}
DictHeadwords::~DictHeadwords()
{
if( delegate )
delegate->deleteLater();
}
void DictHeadwords::setup( Dictionary::Class *dict_ )
{
QApplication::setOverrideCursor( Qt::WaitCursor );
dict = dict_;
setWindowTitle( QString::fromUtf8( dict->getName().c_str() ) );
headers.clear();
model->setStringList( headers );
dict->getHeadwords( headers );
model->setStringList( headers );
proxy->sort( 0 );
filterChanged();
if( headers.size() > AUTO_APPLY_LIMIT )
{
cfg.headwordsDialog.autoApply = ui.autoApply->isChecked();
ui.autoApply->setChecked( false );
ui.autoApply->setEnabled( false );
}
else
{
ui.autoApply->setEnabled( true );
ui.autoApply->setChecked( cfg.headwordsDialog.autoApply );
}
ui.applyButton->setEnabled( !ui.autoApply->isChecked() );
setWindowIcon( dict->getIcon() );
dictId = QString( dict->getId().c_str() );
QApplication::restoreOverrideCursor();
}
void DictHeadwords::savePos()
{
cfg.headwordsDialog.searchMode = ui.searchModeCombo->currentIndex();
cfg.headwordsDialog.matchCase = ui.matchCase->isChecked();
if( headers.size() <= AUTO_APPLY_LIMIT )
cfg.headwordsDialog.autoApply = ui.autoApply->isChecked();
cfg.headwordsDialog.headwordsDialogGeometry = saveGeometry();
}
bool DictHeadwords::eventFilter( QObject * obj, QEvent * ev )
{
if( obj == ui.headersListView && ev->type() == QEvent::KeyPress )
{
QKeyEvent * kev = static_cast< QKeyEvent * >( ev );
if( kev->key() == Qt::Key_Return || kev->key() == Qt::Key_Enter )
{
itemClicked( ui.headersListView->currentIndex() );
return true;
}
}
return QDialog::eventFilter( obj, ev );
}
void DictHeadwords::okButtonClicked()
{
savePos();
closeDialog();
}
void DictHeadwords::reject()
{
savePos();
closeDialog();
}
void DictHeadwords::exportButtonClicked()
{
saveHeadersToFile();
}
void DictHeadwords::filterChangedInternal()
{
// emit signal in async manner, to avoid UI slowdown
if( ui.autoApply->isChecked() )
QTimer::singleShot( 100, this, SLOT( filterChanged() ) );
}
void DictHeadwords::filterChanged()
{
QRegExp::PatternSyntax syntax =
QRegExp::PatternSyntax( ui.searchModeCombo->itemData(
ui.searchModeCombo->currentIndex()).toInt() );
QRegularExpression::PatternOptions options = QRegularExpression::UseUnicodePropertiesOption;
if( !ui.matchCase->isChecked() )
options |= QRegularExpression::CaseInsensitiveOption;
QString pattern;
switch( syntax )
{
case QRegExp::FixedString: pattern = QRegularExpression::escape( ui.filterLine->text() );
break;
case QRegExp::WildcardUnix: pattern = wildcardsToRegexp( ui.filterLine->text() );
break;
default: pattern = ui.filterLine->text();
break;
}
QRegularExpression regExp( pattern, options );
if( !regExp.isValid() )
{
gdWarning( "Invalid regexp pattern: %s\n", pattern.toUtf8().data() );
regExp.setPattern( QString::fromLatin1( "\1" ) );
}
QApplication::setOverrideCursor( Qt::WaitCursor );
proxy->setFilterRegularExpression( regExp );
proxy->sort( 0 );
QApplication::restoreOverrideCursor();
showHeadwordsNumber();
}
void DictHeadwords::itemClicked( const QModelIndex & index )
{
QVariant value = proxy->data( index, Qt::DisplayRole );
if ( value.canConvert< QString >() )
{
QString headword = value.toString();
emit headwordSelected( headword, dictId );
}
}
void DictHeadwords::autoApplyStateChanged( int state )
{
ui.applyButton->setEnabled( state == Qt::Unchecked );
}
void DictHeadwords::showHeadwordsNumber()
{
ui.headersNumber->setText( tr( "Unique headwords total: %1, filtered: %2" )
.arg( QString::number( headers.size() ) )
.arg( QString::number( proxy->rowCount() ) ) );
}
void DictHeadwords::saveHeadersToFile()
{
QString exportPath;
if( cfg.headwordsDialog.headwordsExportPath.isEmpty() )
exportPath = QDir::homePath();
else
{
exportPath = QDir::fromNativeSeparators( cfg.headwordsDialog.headwordsExportPath );
if( !QDir( exportPath ).exists() )
exportPath = QDir::homePath();
}
QString fileName = QFileDialog::getSaveFileName( this, tr( "Save headwords to file" ),
exportPath,
tr( "Text files (*.txt);;All files (*.*)" ) );
if( fileName.size() == 0)
return;
cfg.headwordsDialog.headwordsExportPath = QDir::toNativeSeparators(
QFileInfo( fileName ).absoluteDir().absolutePath() );
QFile file( fileName );
for(;;)
{
if ( !file.open( QFile::WriteOnly | QIODevice::Text ) )
break;
int headwordsNumber = proxy->rowCount();
// Setup progress dialog
int n = headwordsNumber;
int step = 1;
while( n > 1000 )
{
step *= 10;
n /= 10;
}
QProgressDialog progress( tr( "Export headwords..."), tr( "Cancel" ),
0, n, this );
progress.setWindowModality( Qt::WindowModal );
// Write UTF-8 BOM
QByteArray line;
line.append( 0xEF ).append( 0xBB ).append( 0xBF );
if ( file.write( line ) != line.size() )
break;
// Write headwords
int i;
for( i = 0; i < headwordsNumber; ++i )
{
if( i % step == 0 )
progress.setValue( i / step );
if( progress.wasCanceled() )
break;
QVariant value = proxy->data( proxy->index( i, 0 ) );
if( !value.canConvert< QString >() )
continue;
line = value.toString().toUtf8();
line.replace( '\n', ' ' );
line.replace( '\r', ' ' );
line += "\n";
if ( file.write( line ) != line.size() )
break;
}
if( i < headwordsNumber && !progress.wasCanceled() )
break;
file.close();
return;
}
gdWarning( "Headers export error: %s", file.errorString().toUtf8().data() );
file.close();
}
void DictHeadwords::helpRequested()
{
MainWindow * mainWindow = qobject_cast< MainWindow * >( parentWidget() );
if( mainWindow )
mainWindow->showGDHelpForID( "Dictionary headwords" );
}