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128 lines
3.8 KiB
C++
128 lines
3.8 KiB
C++
/*
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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 <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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m_uncommitted(true)
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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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if (m_uncommitted) {
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const_cast<QAbstractItemModel*>(m_index.model())->setData(m_index, m_editor->toPlainText(), Qt::EditRole);
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m_uncommitted = false;
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}
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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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}
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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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if (m_uncommitted) {
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commitData();
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emit closeEditor(this, QAbstractItemDelegate::NoHint);
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}
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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 "moc_itemeditor.cpp"
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