// 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 QTEXTOPTION_H

#define QTEXTOPTION_H

#include <QtGui/qtguiglobal.h>

#include <QtCore/qnamespace.h>

#include <QtCore/qchar.h>

#include <QtCore/qmetatype.h>

QT_BEGIN_NAMESPACE

struct QTextOptionPrivate;

class Q_GUI_EXPORT QTextOption

{

public:

    enum TabType {

        LeftTab,

        RightTab,

        CenterTab,

        DelimiterTab

    };

    struct Q_GUI_EXPORT Tab {

        inline Tab() : position(80), type(QTextOption::LeftTab) { }

        inline Tab(qreal pos, TabType tabType, QChar delim = QChar())

            : position(pos), type(tabType), delimiter(delim) {}

        inline bool operator==(const Tab &other) const {

            return type == other.type

                   && qFuzzyCompare(position, other.position)

                   && delimiter == other.delimiter;

        }

        inline bool operator!=(const Tab &other) const {

            return !operator==(other);

        }

        qreal position;

        TabType type;

        QChar delimiter;

    };

    QTextOption();

    Q_IMPLICIT QTextOption(Qt::Alignment alignment);

    ~QTextOption();

    QTextOption(const QTextOption &o);

    QTextOption &operator=(const QTextOption &o);

    inline void setAlignment(Qt::Alignment alignment);

    inline Qt::Alignment alignment() const { return Qt::Alignment(align); }

    inline void setTextDirection(Qt::LayoutDirection aDirection) { this->direction = aDirection; }

    inline Qt::LayoutDirection textDirection() const { return Qt::LayoutDirection(direction); }

    enum WrapMode {

        NoWrap,

        WordWrap,

        ManualWrap,

        WrapAnywhere,

        WrapAtWordBoundaryOrAnywhere,

    };

    inline void setWrapMode(WrapMode wrap) { wordWrap = wrap; }

    inline WrapMode wrapMode() const { return static_cast<WrapMode>(wordWrap); }

    enum Flag {

        ShowTabsAndSpaces = 0x1,

        ShowLineAndParagraphSeparators = 0x2,

        AddSpaceForLineAndParagraphSeparators = 0x4,

        SuppressColors = 0x8,

        ShowDocumentTerminator = 0x10,

        ShowDefaultIgnorables = 0x20,

        DisableEmojiParsing = 0x40,

        IncludeTrailingSpaces = 0x80000000,

    };

    Q_DECLARE_FLAGS(Flags, Flag)

    inline void setFlags(Flags flags);

    inline Flags flags() const { return Flags(f); }

    inline void setTabStopDistance(qreal tabStopDistance);

    inline qreal tabStopDistance() const { return tab; }

    void setTabArray(const QList<qreal> &tabStops);

    QList<qreal> tabArray() const;

    void setTabs(const QList<Tab> &tabStops);

    QList<Tab> tabs() const;

    void setUseDesignMetrics(bool b) { design = b; }

    bool useDesignMetrics() const { return design; }

private:

    uint align : 9;

    uint wordWrap : 4;

    uint design : 1;

    uint direction : 2;

    uint unused : 16;

    uint f;

    qreal tab;

    QTextOptionPrivate *d;

};

Q_DECLARE_OPERATORS_FOR_FLAGS(QTextOption::Flags)

inline void QTextOption::setAlignment(Qt::Alignment aalignment)

{ align = uint(aalignment.toInt()); }

inline void QTextOption::setFlags(Flags aflags)

{ f = uint(aflags.toInt()); }

inline void QTextOption::setTabStopDistance(qreal atabStop)

{ tab = atabStop; }

QT_END_NAMESPACE

QT_DECL_METATYPE_EXTERN_TAGGED(QTextOption::Tab, QTextOption_Tab, Q_GUI_EXPORT)

#endif // QTEXTOPTION_H