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/**********************************************************************
** Copyright (C) 2002 Trolltech AS. All rights reserved.
**
** This file is part of Qt 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 Qt Enterprise Edition or Qt Professional Edition
** licenses may use this file in accordance with the Qt 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 Qt Commercial License Agreements.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#include <qheader.h>
#include <qlineedit.h>
#include <qtimer.h>
#include "listboxrename.h"
class EditableListBoxItem : public QListBoxItem
{
public:
void setText( const QString & text )
{
QListBoxItem::setText( text );
}
};
ListBoxRename::ListBoxRename( QListBox * eventSource, const char * name )
: QObject( eventSource, name ),
clickedItem( 0 ), activity( FALSE )
{
src = eventSource;
src->installEventFilter( this );
ed = new QLineEdit( src->viewport() );
ed->hide();
ed->setFrame( FALSE );
QObject::connect( ed, SIGNAL( returnPressed() ),
this, SLOT( renameClickedItem() ) );
}
bool ListBoxRename::eventFilter( QObject *, QEvent * event )
{
switch ( event->type() ) {
case QEvent::MouseButtonPress:
{
QPoint pos = ((QMouseEvent *) event)->pos();
if ( clickedItem &&
clickedItem->isSelected() &&
(clickedItem == src->itemAt( pos )) ) {
QTimer::singleShot( 500, this, SLOT( showLineEdit() ) );
activity = FALSE; // no drags or clicks for 500 ms before we start the renaming
} else { // new item clicked
activity = TRUE;
clickedItem = src->itemAt( pos );
ed->hide();
}
}
break;
case QEvent::MouseMove:
if ( ((QMouseEvent *) event)->state() & Qt::LeftButton ) {
activity = TRUE; // drag
}
break;
case QEvent::KeyPress:
switch ( ((QKeyEvent *) event)->key() ) {
case Qt::Key_F2:
activity = FALSE;
clickedItem = src->item( src->currentItem() );
showLineEdit();
break;
case Qt::Key_Escape:
if ( !ed->isHidden() ) {
hideLineEdit(); // abort rename
return TRUE;
}
break;
case Qt::Key_Up:
case Qt::Key_Down:
case Qt::Key_PageUp:
case Qt::Key_PageDown:
if ( !ed->isHidden() )
return TRUE; // Filter out the keystrokes
break;
}
break;
case QEvent::Resize:
if ( clickedItem && ed && !ed->isHidden() ) {
QRect rect = src->itemRect( clickedItem );
ed->resize( rect.right() - rect.left() - 1,
rect.bottom() - rect.top() - 1 );
}
break;
default:
break;
}
return FALSE;
}
void ListBoxRename::showLineEdit()
{
if ( !clickedItem || activity )
return;
QRect rect = src->itemRect( clickedItem );
ed->resize( rect.right() - rect.left() - 1,
rect.bottom() - rect.top() - 1 );
ed->move( rect.left() + 1, rect.top() + 1 );
ed->setText( clickedItem->text() );
ed->selectAll();
ed->show();
ed->setFocus();
}
void ListBoxRename::hideLineEdit()
{
ed->hide();
clickedItem = 0;
src->setFocus();
}
void ListBoxRename::renameClickedItem()
{
if ( clickedItem && ed ) {
( (EditableListBoxItem *) clickedItem )->setText( ed->text() );
emit itemTextChanged( ed->text() );
}
hideLineEdit();
}
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