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/**********************************************************************
** Copyright (C) 2005-2008 Trolltech ASA. All rights reserved.
**
** This file is part of TQt Designer.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free TQt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** Licensees holding valid TQt Commercial 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 WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#include <qheader.h>
#include <qlineedit.h>
#include <qtimer.h>
#include "listboxrename.h"
class EditableListBoxItem : public TQListBoxItem
{
public:
void setText( const TQString & text )
{
TQListBoxItem::setText( text );
}
};
ListBoxRename::ListBoxRename( TQListBox * eventSource, const char * name )
: TQObject( eventSource, name ),
clickedItem( 0 ), activity( FALSE )
{
src = eventSource;
src->installEventFilter( this );
ed = new TQLineEdit( src->viewport() );
ed->hide();
ed->setFrame( FALSE );
TQObject::connect( ed, SIGNAL( returnPressed() ),
this, SLOT( renameClickedItem() ) );
}
bool ListBoxRename::eventFilter( TQObject *, TQEvent * event )
{
switch ( event->type() ) {
case TQEvent::MouseButtonPress:
{
TQPoint pos = ((TQMouseEvent *) event)->pos();
if ( clickedItem &&
clickedItem->isSelected() &&
(clickedItem == src->itemAt( pos )) ) {
TQTimer::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 TQEvent::MouseMove:
if ( ((TQMouseEvent *) event)->state() & TQt::LeftButton ) {
activity = TRUE; // drag
}
break;
case TQEvent::KeyPress:
switch ( ((TQKeyEvent *) event)->key() ) {
case TQt::Key_F2:
activity = FALSE;
clickedItem = src->item( src->currentItem() );
showLineEdit();
break;
case TQt::Key_Escape:
if ( !ed->isHidden() ) {
hideLineEdit(); // abort rename
return TRUE;
}
break;
case TQt::Key_Up:
case TQt::Key_Down:
case TQt::Key_PageUp:
case TQt::Key_PageDown:
if ( !ed->isHidden() )
return TRUE; // Filter out the keystrokes
break;
}
break;
case TQEvent::Resize:
if ( clickedItem && ed && !ed->isHidden() ) {
TQRect 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;
TQRect 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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