50 lines
1.8 KiB
C++
50 lines
1.8 KiB
C++
/*==============================================================================
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** Copyright (C) 2024-2027 WingSummer
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**
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** This program is free software: you can redistribute it and/or modify it under
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** the terms of the GNU Affero General Public License as published by the Free
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** Software Foundation, version 3.
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**
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** This program is distributed in the hope that it will be useful, but WITHOUT
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** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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** FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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** details.
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**
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** You should have received a copy of the GNU Affero General Public License
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** along with this program. If not, see <https://www.gnu.org/licenses/>.
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**
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** The original License is MIT from Dax89/QHexView. I have modified a lot so I
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** decide to change the Open Source License. You can use the original library
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** under MIT. Thanks for Dax89's efforts.
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** =============================================================================
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*/
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#include "replacecommand.h"
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#include "document/qhexdocument.h"
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ReplaceCommand::ReplaceCommand(QHexDocument *doc, qsizetype offset,
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const QByteArray &data, QHexCursor *cursor,
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int nibbleindex, QUndoCommand *parent)
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: HexCommand(doc, cursor, nibbleindex, parent) {
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m_offset = offset;
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m_data = data;
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m_length = data.length();
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m_olddata = doc->read(m_offset, m_length);
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}
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void ReplaceCommand::undo() {
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m_doc->_replace(m_offset, m_olddata);
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m_cursor->setPos(m_offset, m_nibbleindex);
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HexCommand::undo();
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}
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void ReplaceCommand::redo() {
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m_doc->_replace(m_offset, m_data);
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if (m_data.length() == 1 && m_nibbleindex) {
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m_cursor->setPos(m_offset, 0);
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} else {
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m_cursor->setPos(m_offset + m_length, !m_nibbleindex);
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}
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HexCommand::redo();
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}
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