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218 lines
6.4 KiB
218 lines
6.4 KiB
/**********************************************************************
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** Copyright (C) 2005-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of TQt Designer.
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**
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** This file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free
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** Software Foundation and appearing in the files LICENSE.GPL2
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** and LICENSE.GPL3 included in the packaging of this file.
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** Alternatively you may (at your option) use any later version
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** of the GNU General Public License if such license has been
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** publicly approved by Trolltech ASA (or its successors, if any)
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** and the KDE Free TQt Foundation.
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**
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** Please review the following information to ensure GNU General
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** Public Licensing requirements will be met:
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** http://trolltech.com/products/qt/licenses/licensing/opensource/.
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** If you are unsure which license is appropriate for your use, please
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** review the following information:
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** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
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** or contact the sales department at sales@trolltech.com.
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**
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** Licensees holding valid TQt Commercial licenses may use this file in
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** accordance with the TQt Commercial License Agreement provided with
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** the Software.
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**
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** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
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** herein.
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**
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**********************************************************************/
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#include "qcompletionedit.h"
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#include <ntqlistbox.h>
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#include <ntqsizegrip.h>
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#include <ntqapplication.h>
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#include <ntqvbox.h>
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TQCompletionEdit::TQCompletionEdit( TQWidget *parent, const char *name )
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: TQLineEdit( parent, name ), aAdd( FALSE ), caseSensitive( FALSE )
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{
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popup = new TQVBox( 0, 0, WType_Popup );
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popup->setFrameStyle( TQFrame::Box | TQFrame::Plain );
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popup->setLineWidth( 1 );
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popup->hide();
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listbox = new TQListBox( popup );
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listbox->setFrameStyle( TQFrame::NoFrame );
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listbox->setLineWidth( 1 );
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listbox->installEventFilter( this );
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listbox->setHScrollBarMode( TQScrollView::AlwaysOn );
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listbox->setVScrollBarMode( TQScrollView::AlwaysOn );
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listbox->setCornerWidget( new TQSizeGrip( listbox, "completion sizegrip" ) );
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connect( this, SIGNAL( textChanged( const TQString & ) ),
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this, SLOT( textDidChange( const TQString & ) ) );
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popup->setFocusProxy( listbox );
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installEventFilter( this );
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}
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bool TQCompletionEdit::autoAdd() const
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{
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return aAdd;
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}
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TQStringList TQCompletionEdit::completionList() const
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{
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return compList;
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}
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void TQCompletionEdit::setCompletionList( const TQStringList &l )
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{
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compList = l;
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}
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void TQCompletionEdit::setAutoAdd( bool add )
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{
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aAdd = add;
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}
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void TQCompletionEdit::textDidChange( const TQString &text )
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{
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if ( text.isEmpty() ) {
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popup->close();
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return;
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}
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updateListBox();
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placeListBox();
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}
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void TQCompletionEdit::placeListBox()
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{
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if ( listbox->count() == 0 ) {
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popup->close();
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return;
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}
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popup->resize( TQMAX( listbox->sizeHint().width() + listbox->verticalScrollBar()->width() + 4, width() ),
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listbox->sizeHint().height() + listbox->horizontalScrollBar()->height() + 4 );
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TQPoint p( mapToGlobal( TQPoint( 0, 0 ) ) );
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if ( p.y() + height() + popup->height() <= TQApplication::desktop()->height() )
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popup->move( p.x(), p.y() + height() );
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else
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popup->move( p.x(), p.y() - listbox->height() );
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popup->show();
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listbox->setCurrentItem( 0 );
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listbox->setSelected( 0, TRUE );
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setFocus();
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}
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void TQCompletionEdit::updateListBox()
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{
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listbox->clear();
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if ( compList.isEmpty() )
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return;
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for ( TQStringList::Iterator it = compList.begin(); it != compList.end(); ++it ) {
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if ( caseSensitive && (*it).left( text().length() ) == text() ||
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!caseSensitive && (*it).left( text().length() ).lower() == text().lower() )
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listbox->insertItem( *it );
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}
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}
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bool TQCompletionEdit::eventFilter( TQObject *o, TQEvent *e )
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{
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if ( o == popup || o == listbox || o == listbox->viewport() ) {
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if ( e->type() == TQEvent::KeyPress ) {
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TQKeyEvent *ke = (TQKeyEvent*)e;
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if ( ke->key() == Key_Enter || ke->key() == Key_Return || ke->key() == Key_Tab ) {
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if ( ke->key() == Key_Tab && listbox->count() > 1 &&
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listbox->currentItem() < (int)listbox->count() - 1 ) {
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listbox->setCurrentItem( listbox->currentItem() + 1 );
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return TRUE;
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}
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popup->close();
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setFocus();
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blockSignals( TRUE );
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setText( listbox->currentText() );
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blockSignals( FALSE );
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emit chosen( text() );
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return TRUE;
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} else if ( ke->key() == Key_Left || ke->key() == Key_Right ||
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ke->key() == Key_Up || ke->key() == Key_Down ||
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ke->key() == Key_Home || ke->key() == Key_End ||
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ke->key() == Key_Prior || ke->key() == Key_Next ) {
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return FALSE;
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} else if ( ke->key() == Key_Escape ) {
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popup->close();
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setFocus();
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} else if ( ke->key() != Key_Shift && ke->key() != Key_Control &&
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ke->key() != Key_Alt ) {
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updateListBox();
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if ( listbox->count() == 0 || text().length() == 0 ) {
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popup->close();
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setFocus();
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}
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TQApplication::sendEvent( this, e );
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return TRUE;
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}
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} else if ( e->type() == TQEvent::MouseButtonDblClick ) {
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popup->close();
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setFocus();
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blockSignals( TRUE );
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setText( listbox->currentText() );
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blockSignals( FALSE );
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emit chosen( text() );
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return TRUE;
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}
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} else if ( o == this ) {
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if ( e->type() == TQEvent::KeyPress ) {
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TQKeyEvent *ke = (TQKeyEvent*)e;
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if ( ke->key() == Key_Up ||
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ke->key() == Key_Down ||
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ke->key() == Key_Prior ||
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ke->key() == Key_Next ||
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ke->key() == Key_Return ||
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ke->key() == Key_Enter ||
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ke->key() == Key_Tab ||
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ke->key() == Key_Escape ) {
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TQApplication::sendEvent( listbox, e );
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return TRUE;
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}
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}
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}
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return TQLineEdit::eventFilter( o, e );
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}
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void TQCompletionEdit::addCompletionEntry( const TQString &entry )
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{
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if ( compList.find( entry ) == compList.end() ) {
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compList << entry;
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compList.sort();
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}
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}
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void TQCompletionEdit::removeCompletionEntry( const TQString &entry )
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{
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TQStringList::Iterator it = compList.find( entry );
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if ( it != compList.end() )
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compList.remove( it );
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}
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void TQCompletionEdit::setCaseSensitive( bool b )
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{
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caseSensitive = b;
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}
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bool TQCompletionEdit::isCaseSensitive() const
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{
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return caseSensitive;
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}
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void TQCompletionEdit::clear()
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{
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TQLineEdit::clear();
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compList.clear();
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}
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