libaegis/input/crop.h

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//
//      aegis - project change supervisor
//      Copyright (C) 2004-2006, 2008 Peter Miller
//
//      This program is free software; you can redistribute it and/or modify
//      it under the terms of the GNU General Public License as published by
//      the Free Software Foundation; either version 3 of the License, or
//      (at your option) any later version.
//
//      This program is distributed in the hope that it will be useful,
//      but WITHOUT ANY WARRANTY; without even the implied warranty of
//      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//      GNU General Public License for more details.
//
//      You should have received a copy of the GNU General Public License
//      along with this program. If not, see
//      <http://www.gnu.org/licenses/>.
//

#ifndef LIBAEGIS_INPUT_CROP_H
#define LIBAEGIS_INPUT_CROP_H

#include <libaegis/input.h>

class input_crop:
    public input_ty
{
public:
    virtual ~input_crop();

    input_crop(input &deeper, long length);

    // See base class for documentation.
    nstring name();

    // See base class for documentation.
    long length();

    // See base class for documentation.
    void keepalive();

    // See base class for documentation.
    long read_inner(void *data, size_t nbytes);

    // See base class for documentation.
    long ftell_inner();

    // See base class for documentation.
    bool is_remote() const;

    void set_name(const nstring &arg) { name_cache = arg; }

private:
    input deeper;

    long maximum;

    long pos;

    nstring name_cache;

    input_crop();

    input_crop(const input_crop &arg);

    input_crop &operator=(const input_crop &arg);
};

#endif // LIBAEGIS_INPUT_CROP_H

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