63 lines
2.3 KiB
C++
63 lines
2.3 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 "appendcommand.h"
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AppendCommand::AppendCommand(QHexDocument *doc, QHexCursor *cursor,
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const QByteArray &data, int nibbleindex,
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QUndoCommand *parent)
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: HexCommand(tr("[HexAppend]"), doc, cursor, nibbleindex, parent) {
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m_offset = -1;
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m_data = data;
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m_length = data.length();
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}
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void AppendCommand::undo() {
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auto offset = m_doc->length() - m_length;
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m_doc->_remove(offset, m_length);
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m_doc->insertBookMarkAdjustRevert(offset, m_length);
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m_doc->metadata()->insertAdjustRevert(offset, m_length);
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m_cursor->setPos(offset, m_nibbleindex);
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}
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void AppendCommand::redo() {
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auto offset = m_doc->length();
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m_doc->_insert(offset, m_data);
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m_doc->insertBookMarkAdjust(offset, m_length);
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m_doc->metadata()->insertAdjust(offset, m_length);
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if (m_data.length() == 1 && m_nibbleindex) {
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m_cursor->setPos(offset, 0);
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} else {
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m_cursor->setPos(offset + m_length, m_nibbleindex);
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}
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}
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int AppendCommand::id() const { return UndoID_HexAppend; }
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bool AppendCommand::mergeWith(const QUndoCommand *other) {
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auto ucmd = static_cast<const AppendCommand *>(other);
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if (ucmd) {
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this->m_data.append(ucmd->m_data);
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return true;
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}
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return false;
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}
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