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/**********************************************************************
** Copyright (C) 2001 Trolltech AS. All rights reserved.
**
** This file is part of TQt Designer.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid TQt Enterprise Edition or TQt Professional Edition
** licenses may use this file in accordance with the TQt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about TQt Commercial License Agreements.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#include "qcompletionedit.h"
#include <tqlistbox.h>
#include <tqsizegrip.h>
#include <tqapplication.h>
#include <tqvbox.h>
QCompletionEdit::QCompletionEdit( TQWidget *parent, const char *name )
: TQLineEdit( parent, name ), aAdd( FALSE ), caseSensitive( FALSE )
{
popup = new TQVBox( 0, 0, WType_Popup );
popup->setFrameStyle( TQFrame::Box | TQFrame::Plain );
popup->setLineWidth( 1 );
popup->hide();
listbox = new TQListBox( popup );
listbox->setFrameStyle( TQFrame::NoFrame );
listbox->setLineWidth( 1 );
listbox->installEventFilter( this );
listbox->setHScrollBarMode( TQScrollView::AlwaysOn );
listbox->setVScrollBarMode( TQScrollView::AlwaysOn );
listbox->setCornerWidget( new TQSizeGrip( listbox, "completion sizegrip" ) );
connect( this, TQT_SIGNAL( textChanged( const TQString & ) ),
this, TQT_SLOT( textDidChange( const TQString & ) ) );
popup->setFocusProxy( listbox );
installEventFilter( this );
}
bool QCompletionEdit::autoAdd() const
{
return aAdd;
}
TQStringList QCompletionEdit::completionList() const
{
return compList;
}
void QCompletionEdit::setCompletionList( const TQStringList &l )
{
compList = l;
}
void QCompletionEdit::setAutoAdd( bool add )
{
aAdd = add;
}
void QCompletionEdit::textDidChange( const TQString &text )
{
if ( text.isEmpty() ) {
popup->close();
return;
}
updateListBox();
placeListBox();
}
void QCompletionEdit::placeListBox()
{
if ( listbox->count() == 0 ) {
popup->close();
return;
}
popup->resize( TQMAX( listbox->sizeHint().width() + listbox->verticalScrollBar()->width() + 4, width() ),
listbox->sizeHint().height() + listbox->horizontalScrollBar()->height() + 4 );
TQPoint p( mapToGlobal( TQPoint( 0, 0 ) ) );
if ( p.y() + height() + popup->height() <= TQApplication::desktop()->height() )
popup->move( p.x(), p.y() + height() );
else
popup->move( p.x(), p.y() - listbox->height() );
popup->show();
listbox->setCurrentItem( 0 );
listbox->setSelected( 0, TRUE );
setFocus();
}
void QCompletionEdit::updateListBox()
{
listbox->clear();
if ( compList.isEmpty() )
return;
for ( TQStringList::Iterator it = compList.begin(); it != compList.end(); ++it ) {
if ( caseSensitive && (*it).left( text().length() ) == text() ||
!caseSensitive && (*it).left( text().length() ).lower() == text().lower() )
listbox->insertItem( *it );
}
}
bool QCompletionEdit::eventFilter( TQObject *o, TQEvent *e )
{
if ( o == popup || o == listbox || o == listbox->viewport() ) {
if ( e->type() == TQEvent::KeyPress ) {
TQKeyEvent *ke = (TQKeyEvent*)e;
if ( ke->key() == Key_Enter || ke->key() == Key_Return || ke->key() == Key_Tab ) {
if ( ke->key() == Key_Tab && listbox->count() > 1 &&
listbox->currentItem() < (int)listbox->count() - 1 ) {
listbox->setCurrentItem( listbox->currentItem() + 1 );
return TRUE;
}
popup->close();
setFocus();
blockSignals( TRUE );
setText( listbox->currentText() );
blockSignals( FALSE );
emit chosen( text() );
return TRUE;
} else if ( ke->key() == Key_Left || ke->key() == Key_Right ||
ke->key() == Key_Up || ke->key() == Key_Down ||
ke->key() == Key_Home || ke->key() == Key_End ||
ke->key() == Key_Prior || ke->key() == Key_Next ) {
return FALSE;
} else if ( ke->key() == Key_Escape ) {
popup->close();
setFocus();
} else if ( ke->key() != Key_Shift && ke->key() != Key_Control &&
ke->key() != Key_Alt ) {
updateListBox();
if ( listbox->count() == 0 || text().length() == 0 ) {
popup->close();
setFocus();
}
TQApplication::sendEvent( this, e );
return TRUE;
}
} else if ( e->type() == TQEvent::MouseButtonDblClick ) {
popup->close();
setFocus();
blockSignals( TRUE );
setText( listbox->currentText() );
blockSignals( FALSE );
emit chosen( text() );
return TRUE;
}
} else if ( o == this ) {
if ( e->type() == TQEvent::KeyPress ) {
TQKeyEvent *ke = (TQKeyEvent*)e;
if ( ke->key() == Key_Up ||
ke->key() == Key_Down ||
ke->key() == Key_Prior ||
ke->key() == Key_Next ||
ke->key() == Key_Return ||
ke->key() == Key_Enter ||
ke->key() == Key_Tab ||
ke->key() == Key_Escape ) {
TQApplication::sendEvent( listbox, e );
return TRUE;
}
}
}
return TQLineEdit::eventFilter( o, e );
}
void QCompletionEdit::addCompletionEntry( const TQString &entry )
{
if ( compList.find( entry ) == compList.end() ) {
compList << entry;
compList.sort();
}
}
void QCompletionEdit::removeCompletionEntry( const TQString &entry )
{
TQStringList::Iterator it = compList.find( entry );
if ( it != compList.end() )
compList.remove( it );
}
void QCompletionEdit::setCaseSensitive( bool b )
{
caseSensitive = b;
}
bool QCompletionEdit::isCaseSensitive() const
{
return caseSensitive;
}
void QCompletionEdit::clear()
{
TQLineEdit::clear();
compList.clear();
}
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