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/*
This file is part of the KDE project
* Copyright (C) 2009 Ganesh Paramasivam <ganesh@crystalfab.com>
* Copyright (C) 2012 C. Boemann <cbo@boemann.dk>
* Copyright (C) 2014-2015 Denis Kuplyakov <dener.kup@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.*/
#ifndef DELETECOMMAND_H
#define DELETECOMMAND_H
#include "KoTextCommandBase.h"
#include <QTextCharFormat>
#include <QHash>
#include <QSet>
#include <QPointer>
class QTextDocument;
class KoShapeController;
class KoInlineObject;
class KoTextRange;
class KoSection;
class DeleteVisitor;
class DeleteCommand : public KoTextCommandBase
{
public:
enum DeleteMode {
PreviousChar,
NextChar
};
DeleteCommand(DeleteMode mode, QTextDocument *document, KoShapeController *shapeController, KUndo2Command* parent = 0);
~DeleteCommand() override;
void undo() override;
void redo() override;
int id() const override;
bool mergeWith(const KUndo2Command *command) override;
private:
friend class DeleteVisitor;
struct SectionDeleteInfo {
SectionDeleteInfo(KoSection *_section, int _childIdx)
: section(_section)
, childIdx(_childIdx)
{
}
bool operator<(const SectionDeleteInfo &other) const;
KoSection *section; ///< Section to remove
int childIdx; ///< Position of section in parent's children() list
};
QPointer<QTextDocument> m_document;
KoShapeController *m_shapeController;
QSet<KoInlineObject *> m_invalidInlineObjects;
QList<QTextCursor> m_cursorsToWholeDeleteBlocks;
QHash<int, KoTextRange *> m_rangesToRemove;
QList<SectionDeleteInfo> m_sectionsToRemove;
bool m_first;
DeleteMode m_mode;
int m_position;
int m_length;
QTextCharFormat m_format;
bool m_mergePossible;
void doDelete();
void deleteInlineObject(KoInlineObject *object);
bool checkMerge(const KUndo2Command *command);
void updateListChanges();
void finalizeSectionHandling(QTextCursor *caret, DeleteVisitor &visitor);
void deleteSectionsFromModel();
void insertSectionsToModel();
};
#endif // DELETECOMMAND_H
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