qtextcursor_p.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QTEXTCURSOR_P_H
#define QTEXTCURSOR_P_H
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of other Qt classes.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
 
#include <QtGui/private/qtguiglobal_p.h>
#include "qtextcursor.h"
#include "qtextdocument.h"
#include "qtextdocument_p.h"
#include <private/qtextformat_p.h>
#include "qtextobject.h"
 
QT_BEGIN_NAMESPACE
 
class Q_GUI_EXPORT QTextCursorPrivate : public QSharedData
{
public:
    QTextCursorPrivate(QTextDocumentPrivate *p);
    QTextCursorPrivate(const QTextCursorPrivate &rhs);
    ~QTextCursorPrivate();
 
    static inline QTextCursorPrivate *getPrivate(QTextCursor *c) { return c->d; }
 
    enum AdjustResult { CursorMoved, CursorUnchanged };
    AdjustResult adjustPosition(int positionOfChange, int charsAddedOrRemoved, QTextUndoCommand::Operation op);
 
    void adjustCursor(QTextCursor::MoveOperation m);
 
    void remove();
    void clearCells(QTextTable *table, int startRow, int startCol, int numRows, int numCols, QTextUndoCommand::Operation op);
    inline bool setPosition(int newPosition) {
        Q_ASSERT(newPosition >= 0 && newPosition < priv->length());
        bool moved = position != newPosition;
        if (moved) {
            position = newPosition;
            currentCharFormat = -1;
        }
        return moved;
    }
    void setX();
    bool canDelete(int pos) const;
 
    void insertBlock(const QTextBlockFormat &format, const QTextCharFormat &charFormat);
    bool movePosition(QTextCursor::MoveOperation op, QTextCursor::MoveMode mode = QTextCursor::MoveAnchor);
 
    inline QTextBlock block() const
        { return QTextBlock(priv, priv->blockMap().findNode(position)); }
    inline QTextBlockFormat blockFormat() const
        { return block().blockFormat(); }
 
    QTextLayout *blockLayout(QTextBlock &block) const;
 
    QTextTable *complexSelectionTable() const;
    void selectedTableCells(int *firstRow, int *numRows, int *firstColumn, int *numColumns) const;
 
    void setBlockCharFormat(const QTextCharFormat &format, QTextDocumentPrivate::FormatChangeMode changeMode);
    void setBlockFormat(const QTextBlockFormat &format, QTextDocumentPrivate::FormatChangeMode changeMode);
    void setCharFormat(const QTextCharFormat &format, QTextDocumentPrivate::FormatChangeMode changeMode);
 
    void aboutToRemoveCell(int from, int to);
 
    static QTextCursor fromPosition(QTextDocumentPrivate *d, int pos)
    { return QTextCursor(d, pos); }
 
    QTextDocumentPrivate *priv;
    qreal x;
    int position;
    int anchor;
    int adjusted_anchor;
    int currentCharFormat;
    uint visualNavigation : 1;
    uint keepPositionOnInsert : 1;
    uint changed : 1;
};
 
QT_END_NAMESPACE
 
#endif // QTEXTCURSOR_P_H