source/layout/LEGlyphFilter.h

// Copyright (C) 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
 *
 * (C) Copyright IBM Corp. 1998-2011 - All Rights Reserved
 *
 */

#ifndef __LEGLYPHFILTER__H
#define __LEGLYPHFILTER__H

#include "LETypes.h"

U_NAMESPACE_BEGIN

#ifndef U_HIDE_INTERNAL_API
/**
 * This is a helper class that is used to
 * recognize a set of glyph indices.
 *
 * @internal
 */
class LEGlyphFilter /* not : public UObject because this is an interface/mixin class */ {
public:
    /**
     * Destructor.
     * @internal
     */
    virtual ~LEGlyphFilter();

    /**
     * This method is used to test a particular
     * glyph index to see if it is in the set
     * recognized by the filter.
     *
     * @param glyph - the glyph index to be tested
     *
     * @return TRUE if the glyph index is in the set.
     *
     * @internal
     */
    virtual le_bool accept(LEGlyphID glyph) const = 0;
};
#endif  /* U_HIDE_INTERNAL_API */

U_NAMESPACE_END
#endif