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158 lines
3.9 KiB
158 lines
3.9 KiB
/**********************************************************************
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** Copyright (C) 2002 Trolltech AS. 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 distributed and/or modified under the terms of the
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** GNU General Public License version 2 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file.
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**
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** Licensees holding valid TQt Enterprise Edition or TQt Professional Edition
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** licenses may use this file in accordance with the TQt Commercial License
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** Agreement provided with the Software.
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**
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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**
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** See http://www.trolltech.com/gpl/ for GPL licensing information.
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** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
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** information about TQt Commercial License Agreements.
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**
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** Contact info@trolltech.com if any conditions of this licensing are
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** not clear to you.
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**
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**********************************************************************/
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#include <tqheader.h>
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#include <tqlineedit.h>
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#include <tqtimer.h>
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#include "listboxrename.h"
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class EditableListBoxItem : public TQListBoxItem
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{
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public:
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void setText( const TQString & text )
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{
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TQListBoxItem::setText( text );
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}
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};
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ListBoxRename::ListBoxRename( TQListBox * eventSource, const char * name )
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: TQObject( eventSource, name ),
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clickedItem( 0 ), activity( FALSE )
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{
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src = eventSource;
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src->installEventFilter( this );
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ed = new TQLineEdit( src->viewport() );
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ed->hide();
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ed->setFrame( FALSE );
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TQObject::connect( ed, TQT_SIGNAL( returnPressed() ),
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this, TQT_SLOT( renameClickedItem() ) );
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}
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bool ListBoxRename::eventFilter( TQObject *, TQEvent * event )
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{
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switch ( event->type() ) {
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case TQEvent::MouseButtonPress:
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{
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TQPoint pos = ((TQMouseEvent *) event)->pos();
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if ( clickedItem &&
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clickedItem->isSelected() &&
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(clickedItem == src->itemAt( pos )) ) {
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TQTimer::singleShot( 500, this, TQT_SLOT( showLineEdit() ) );
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activity = FALSE; // no drags or clicks for 500 ms before we start the renaming
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} else { // new item clicked
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activity = TRUE;
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clickedItem = src->itemAt( pos );
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ed->hide();
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}
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}
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break;
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case TQEvent::MouseMove:
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if ( ((TQMouseEvent *) event)->state() & Qt::LeftButton ) {
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activity = TRUE; // drag
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}
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break;
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case TQEvent::KeyPress:
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switch ( ((TQKeyEvent *) event)->key() ) {
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case TQt::Key_F2:
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activity = FALSE;
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clickedItem = src->item( src->currentItem() );
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showLineEdit();
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break;
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case TQt::Key_Escape:
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if ( !ed->isHidden() ) {
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hideLineEdit(); // abort rename
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return TRUE;
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}
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break;
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case TQt::Key_Up:
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case TQt::Key_Down:
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case TQt::Key_PageUp:
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case TQt::Key_PageDown:
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if ( !ed->isHidden() )
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return TRUE; // Filter out the keystrokes
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break;
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}
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break;
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case TQEvent::Resize:
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if ( clickedItem && ed && !ed->isHidden() ) {
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TQRect rect = src->itemRect( clickedItem );
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ed->resize( rect.right() - rect.left() - 1,
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rect.bottom() - rect.top() - 1 );
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}
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break;
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default:
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break;
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}
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return FALSE;
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}
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void ListBoxRename::showLineEdit()
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{
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if ( !clickedItem || activity )
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return;
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TQRect rect = src->itemRect( clickedItem );
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ed->resize( rect.right() - rect.left() - 1,
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rect.bottom() - rect.top() - 1 );
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ed->move( rect.left() + 1, rect.top() + 1 );
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ed->setText( clickedItem->text() );
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ed->selectAll();
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ed->show();
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ed->setFocus();
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}
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void ListBoxRename::hideLineEdit()
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{
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ed->hide();
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clickedItem = 0;
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src->setFocus();
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}
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void ListBoxRename::renameClickedItem()
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{
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if ( clickedItem && ed ) {
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( (EditableListBoxItem *) clickedItem )->setText( ed->text() );
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emit itemTextChanged( ed->text() );
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}
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hideLineEdit();
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}
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