// 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_H

#define QTEXTCURSOR_H

#include <QtGui/qtguiglobal.h>

#include <QtCore/qstring.h>

#include <QtCore/qshareddata.h>

#include <QtGui/qtextdocument.h>

#include <QtGui/qtextformat.h>

QT_BEGIN_NAMESPACE

class QTextCursorPrivate;

class QTextDocumentFragment;

class QTextCharFormat;

class QTextBlockFormat;

class QTextListFormat;

class QTextTableFormat;

class QTextFrameFormat;

class QTextImageFormat;

class QTextDocumentPrivate;

class QTextList;

class QTextTable;

class QTextFrame;

class QTextBlock;

class Q_GUI_EXPORT QTextCursor

{

public:

    QTextCursor();

    explicit QTextCursor(QTextDocument *document);

    QTextCursor(QTextDocumentPrivate *p, int pos);

    explicit QTextCursor(QTextCursorPrivate *d);

    explicit QTextCursor(QTextFrame *frame);

    explicit QTextCursor(const QTextBlock &block);

    QTextCursor(const QTextCursor &cursor);

    QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_PURE_SWAP(QTextCursor)

    QTextCursor &operator=(const QTextCursor &other);

    ~QTextCursor();

    void swap(QTextCursor &other) noexcept { d.swap(other.d); }

    bool isNull() const;

    enum MoveMode {

        MoveAnchor,

        KeepAnchor

    };

    void setPosition(int pos, MoveMode mode = MoveAnchor);

    int position() const;

    int positionInBlock() const;

    int anchor() const;

    void insertText(const QString &text);

    void insertText(const QString &text, const QTextCharFormat &format);

    enum MoveOperation {

        NoMove,

        Start,

        Up,

        StartOfLine,

        StartOfBlock,

        StartOfWord,

        PreviousBlock,

        PreviousCharacter,

        PreviousWord,

        Left,

        WordLeft,

        End,

        Down,

        EndOfLine,

        EndOfWord,

        EndOfBlock,

        NextBlock,

        NextCharacter,

        NextWord,

        Right,

        WordRight,

        NextCell,

        PreviousCell,

        NextRow,

        PreviousRow

    };

    bool movePosition(MoveOperation op, MoveMode = MoveAnchor, int n = 1);

    bool visualNavigation() const;

    void setVisualNavigation(bool b);

    void setVerticalMovementX(int x);

    int verticalMovementX() const;

    void setKeepPositionOnInsert(bool b);

    bool keepPositionOnInsert() const;

    void deleteChar();

    void deletePreviousChar();

    enum SelectionType {

        WordUnderCursor,

        LineUnderCursor,

        BlockUnderCursor,

        Document

    };

    void select(SelectionType selection);

    bool hasSelection() const;

    bool hasComplexSelection() const;

    void removeSelectedText();

    void clearSelection();

    int selectionStart() const;

    int selectionEnd() const;

    QString selectedText() const;

    QTextDocumentFragment selection() const;

    void selectedTableCells(int *firstRow, int *numRows, int *firstColumn, int *numColumns) const;

    QTextBlock block() const;

    QTextCharFormat charFormat() const;

    void setCharFormat(const QTextCharFormat &format);

    void mergeCharFormat(const QTextCharFormat &modifier);

    QTextBlockFormat blockFormat() const;

    void setBlockFormat(const QTextBlockFormat &format);

    void mergeBlockFormat(const QTextBlockFormat &modifier);

    QTextCharFormat blockCharFormat() const;

    void setBlockCharFormat(const QTextCharFormat &format);

    void mergeBlockCharFormat(const QTextCharFormat &modifier);

    bool atBlockStart() const;

    bool atBlockEnd() const;

    bool atStart() const;

    bool atEnd() const;

    void insertBlock();

    void insertBlock(const QTextBlockFormat &format);

    void insertBlock(const QTextBlockFormat &format, const QTextCharFormat &charFormat);

    QTextList *insertList(const QTextListFormat &format);

    QTextList *insertList(QTextListFormat::Style style);

    QTextList *createList(const QTextListFormat &format);

    QTextList *createList(QTextListFormat::Style style);

    QTextList *currentList() const;

    QTextTable *insertTable(int rows, int cols, const QTextTableFormat &format);

    QTextTable *insertTable(int rows, int cols);

    QTextTable *currentTable() const;

    QTextFrame *insertFrame(const QTextFrameFormat &format);

    QTextFrame *currentFrame() const;

    void insertFragment(const QTextDocumentFragment &fragment);

#ifndef QT_NO_TEXTHTMLPARSER

    void insertHtml(const QString &html);

#endif // QT_NO_TEXTHTMLPARSER

#if QT_CONFIG(textmarkdownreader)

    void insertMarkdown(const QString &markdown,

                        QTextDocument::MarkdownFeatures features = QTextDocument::MarkdownDialectGitHub);

#endif // textmarkdownreader

    void insertImage(const QTextImageFormat &format, QTextFrameFormat::Position alignment);

    void insertImage(const QTextImageFormat &format);

    void insertImage(const QString &name);

    void insertImage(const QImage &image, const QString &name = QString());

    void beginEditBlock();

    void joinPreviousEditBlock();

    void endEditBlock();

    bool operator!=(const QTextCursor &rhs) const;

    bool operator<(const QTextCursor &rhs) const;

    bool operator<=(const QTextCursor &rhs) const;

    bool operator==(const QTextCursor &rhs) const;

    bool operator>=(const QTextCursor &rhs) const;

    bool operator>(const QTextCursor &rhs) const;

    bool isCopyOf(const QTextCursor &other) const;

    int blockNumber() const;

    int columnNumber() const;

    QTextDocument *document() const;

private:

    QSharedDataPointer<QTextCursorPrivate> d;

    friend class QTextCursorPrivate;

    friend class QTextDocumentPrivate;

    friend class QTextDocumentFragmentPrivate;

    friend class QTextCopyHelper;

    friend class QWidgetTextControlPrivate;

};

Q_DECLARE_SHARED(QTextCursor)

QT_END_NAMESPACE

#endif // QTEXTCURSOR_H