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165 lines
4.2 KiB
165 lines
4.2 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 Qt 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 Qt 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 Qt Commercial licenses may use this file in
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** accordance with the Qt 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 <qheader.h>
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#include <qlineedit.h>
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#include <qtimer.h>
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#include "listboxrename.h"
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class EditableListBoxItem : public QListBoxItem
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{
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public:
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void setText( const QString & text )
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{
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QListBoxItem::setText( text );
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}
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};
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ListBoxRename::ListBoxRename( QListBox * eventSource, const char * name )
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: QObject( 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 QLineEdit( src->viewport() );
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ed->hide();
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ed->setFrame( FALSE );
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QObject::connect( ed, SIGNAL( returnPressed() ),
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this, SLOT( renameClickedItem() ) );
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}
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bool ListBoxRename::eventFilter( QObject *, QEvent * event )
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{
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switch ( event->type() ) {
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case QEvent::MouseButtonPress:
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{
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QPoint pos = ((QMouseEvent *) 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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QTimer::singleShot( 500, this, 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 QEvent::MouseMove:
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if ( ((QMouseEvent *) 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 QEvent::KeyPress:
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switch ( ((QKeyEvent *) event)->key() ) {
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case Qt::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 Qt::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 Qt::Key_Up:
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case Qt::Key_Down:
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case Qt::Key_PageUp:
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case Qt::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 QEvent::Resize:
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if ( clickedItem && ed && !ed->isHidden() ) {
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QRect 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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QRect 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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