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Viewing changes to apps/plasma/applets/folderview/itemeditor.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Jonathan Thomas
  • Date: 2009-12-02 13:28:20 UTC
  • mto: This revision was merged to the branch mainline in revision 258.
  • Revision ID: james.westby@ubuntu.com-20091202132820-tpxn348l9frx5zd5
Tags: upstream-4.3.80
Import upstream version 4.3.80

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apps/plasma/applets/folderview/itemeditor.cpp
 
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/*
 
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 *   Copyright © 2009 Fredrik Höglund <fredrik@kde.org>
 
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 *
 
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 *   This library is free software; you can redistribute it and/or
 
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 *   modify it under the terms of the GNU Library General Public
 
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 *   License as published by the Free Software Foundation; either
 
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 *   version 2 of the License, or (at your option) any later version.
 
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 *
 
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 *   This library is distributed in the hope that it will be useful,
 
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 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 
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 *   Library General Public License for more details.
 
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 *
 
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 *   You should have received a copy of the GNU Library General Public License
 
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 *   along with this library; see the file COPYING.LIB.  If not, write to
 
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 *   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 
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 *   Boston, MA 02110-1301, USA.
 
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 */
 
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#include "itemeditor.h"
 
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#include <KTextEdit>
 
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#include <QAbstractItemView>
 
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#include <QAbstractItemModel>
 
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#include <QAbstractItemDelegate>
 
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#include <KMimeType>
 
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ItemEditor::ItemEditor(QGraphicsWidget *parent, const QStyleOptionViewItemV4 &option,
 
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                       const QModelIndex &index)
 
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    : QGraphicsProxyWidget(parent),
 
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      m_index(index)
 
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{
 
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    // Create the editor
 
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    m_editor = new KTextEdit();
 
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    m_editor->setAttribute(Qt::WA_NoSystemBackground);
 
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    m_editor->setAcceptRichText(false);
 
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    m_editor->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
 
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    m_editor->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
 
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    m_editor->setAlignment(option.displayAlignment);
 
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    m_editor->installEventFilter(this);
 
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    // Set the editor data
 
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    const QVariant value = index.data(Qt::EditRole);
 
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    const QString text = value.toString();
 
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    m_editor->insertPlainText(text);
 
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    m_editor->selectAll();
 
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    const QString extension = KMimeType::extractKnownExtension(text);
 
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    if (!extension.isEmpty()) {
 
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        // The filename contains an extension. Assure that only the filename
 
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        // gets selected.
 
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        const int selectionLength = text.length() - extension.length() - 1;
 
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        QTextCursor cursor = m_editor->textCursor();
 
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        cursor.movePosition(QTextCursor::StartOfBlock);
 
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        cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, selectionLength);
 
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        m_editor->setTextCursor(cursor);
 
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    }
 
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    setWidget(m_editor);
 
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}
 
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ItemEditor::~ItemEditor()
 
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{
 
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}
 
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void ItemEditor::commitData()
 
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{
 
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    const_cast<QAbstractItemModel*>(m_index.model())->setData(m_index, m_editor->toPlainText(), Qt::EditRole);
 
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}
 
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bool ItemEditor::eventFilter(QObject *watched, QEvent *event)
 
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{
 
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    KTextEdit *editor = qobject_cast<KTextEdit*>(watched);
 
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    if (!editor)
 
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        return false;
 
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    switch (event->type())
 
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    {
 
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    case QEvent::KeyPress:
 
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    {
 
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        QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
 
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        switch (keyEvent->key())
 
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        {
 
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        case Qt::Key_Tab:
 
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        case Qt::Key_Backtab:
 
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            commitData();
 
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            emit closeEditor(this, QAbstractItemDelegate::NoHint);
 
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            return true;
 
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        case Qt::Key_Enter:
 
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        case Qt::Key_Return:
 
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            if (!editor->toPlainText().isEmpty()) {
 
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                commitData();
 
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                emit closeEditor(this, QAbstractItemDelegate::SubmitModelCache);
 
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            }
 
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            return true;
 
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        case Qt::Key_Escape:
 
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            emit closeEditor(this, QAbstractItemDelegate::RevertModelCache);
 
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            return true;
 
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        default:
 
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            return false;
 
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        } // switch (keyEvent->key())
 
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    } // case QEvent::KeyPress
 
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    case QEvent::FocusOut:
 
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    {
 
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        commitData();
 
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        emit closeEditor(this, QAbstractItemDelegate::NoHint);
 
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        return true;
 
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    }
 
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    default:
 
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        return false;
 
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    } // switch (event->type())
 
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}
 
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#include "itemeditor.moc"
 
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