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Diffstat (limited to 'kdevdesigner/designer/listboxrename.cpp')
-rw-r--r-- | kdevdesigner/designer/listboxrename.cpp | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/kdevdesigner/designer/listboxrename.cpp b/kdevdesigner/designer/listboxrename.cpp new file mode 100644 index 00000000..464ef412 --- /dev/null +++ b/kdevdesigner/designer/listboxrename.cpp @@ -0,0 +1,157 @@ +/********************************************************************** +** 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 [email protected] for +** information about Qt Commercial License Agreements. +** +** Contact [email protected] 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(); +} |