114 lines
3.7 KiB
C++
114 lines
3.7 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QTEXTBOUNDARYFINDER_H
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#define QTEXTBOUNDARYFINDER_H
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#include <QtCore/qchar.h>
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#include <QtCore/qstring.h>
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QT_BEGIN_NAMESPACE
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struct QCharAttributes;
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class Q_CORE_EXPORT QTextBoundaryFinder
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{
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public:
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QTextBoundaryFinder();
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QTextBoundaryFinder(const QTextBoundaryFinder &other);
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QTextBoundaryFinder &operator=(const QTextBoundaryFinder &other);
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~QTextBoundaryFinder();
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enum BoundaryType {
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Grapheme,
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Word,
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Sentence,
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Line
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};
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enum BoundaryReason {
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NotAtBoundary = 0,
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BreakOpportunity = 0x1f,
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StartOfItem = 0x20,
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EndOfItem = 0x40,
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MandatoryBreak = 0x80,
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SoftHyphen = 0x100
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};
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Q_DECLARE_FLAGS( BoundaryReasons, BoundaryReason )
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QTextBoundaryFinder(BoundaryType type, const QString &string);
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QTextBoundaryFinder(BoundaryType type, const QChar *chars, qsizetype length, unsigned char *buffer = nullptr, qsizetype bufferSize = 0)
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: QTextBoundaryFinder(type, QStringView(chars, length), buffer, bufferSize)
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{}
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QTextBoundaryFinder(BoundaryType type, QStringView str, unsigned char *buffer = nullptr, qsizetype bufferSize = 0);
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inline bool isValid() const { return attributes; }
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inline BoundaryType type() const { return t; }
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QString string() const;
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void toStart();
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void toEnd();
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qsizetype position() const;
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void setPosition(qsizetype position);
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qsizetype toNextBoundary();
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qsizetype toPreviousBoundary();
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bool isAtBoundary() const;
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BoundaryReasons boundaryReasons() const;
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private:
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BoundaryType t = Grapheme;
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QString s;
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QStringView sv;
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qsizetype pos;
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uint freeBuffer : 1;
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uint unused : 31;
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QCharAttributes *attributes = nullptr;
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};
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Q_DECLARE_OPERATORS_FOR_FLAGS(QTextBoundaryFinder::BoundaryReasons)
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QT_END_NAMESPACE
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#endif
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