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/* This file is part of the KDE project
* SPDX-FileCopyrightText: 2006 Thomas Zander <zander@kde.org>
* SPDX-FileCopyrightText: 2012 C. Boemann <cbo@boemann.dk>
*
* SPDX-License-Identifier: LGPL-2.0-or-later
*/
#ifndef CHANGEFOLLOWER_H
#define CHANGEFOLLOWER_H
#include "commands/ChangeStylesMacroCommand.h"
#include <KoStyleManager.h>
#include <QObject>
#include <QPointer>
#include <QSet>
#include <QTextDocument>
/**
* OdfTextTrackStyles is used to update a list of qtextdocument with
* any changes made in the style manager.
*
* It also creates undo commands and adds them to the undo stack
*
* Style changes affect a lot of qtextdocuments and we store the changes and apply
* the changes to every qtextdocument, so every KoTextDocument has to
* register their QTextDocument to us.
*
* We use the QObject principle of children getting deleted when the
* parent gets deleted. Thus we die when the KoStyleManager dies.
*/
class OdfTextTrackStyles : public QObject
{
Q_OBJECT
public:
static OdfTextTrackStyles *instance(KoStyleManager *manager);
private:
static QHash<QObject *, OdfTextTrackStyles *> instances;
explicit OdfTextTrackStyles(KoStyleManager *manager);
/// Destructor, called when the parent is deleted.
~OdfTextTrackStyles() override;
private Q_SLOTS:
void beginEdit();
void endEdit();
void recordStyleChange(int id, const KoParagraphStyle *origStyle, const KoParagraphStyle *newStyle);
void recordStyleChange(int id, const KoCharacterStyle *origStyle, const KoCharacterStyle *newStyle);
void styleManagerDied(QObject *manager);
void documentDied(QObject *manager);
public:
void registerDocument(QTextDocument *qDoc);
void unregisterDocument(QTextDocument *qDoc);
private:
QList<QTextDocument *> m_documents;
QPointer<KoStyleManager> m_styleManager;
ChangeStylesMacroCommand *m_changeCommand;
};
#endif
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