InputDevice.h

// SPDX-FileCopyrightText: 2006 Dominik Seichter <domseichter@web.de>
// SPDX-FileCopyrightText: 2020 Francesco Pretto <ceztko@gmail.com>
// SPDX-License-Identifier: LGPL-2.0-or-later OR MPL-2.0
 
#ifndef AUX_INPUT_DEVICE_H
#define AUX_INPUT_DEVICE_H
 
#include <istream>
#include <fstream>
 
#include "StreamDeviceBase.h"
#include "InputStream.h"
 
namespace PoDoFo {
 
class PODOFO_API InputStreamDevice : virtual public StreamDeviceBase, public InputStream
{
protected:
    InputStreamDevice();
    InputStreamDevice(bool init);
 
public:
    bool Peek(char& ch) const;
 
protected:
    virtual bool peek(char& ch) const = 0;
 
    void checkRead() const override;
 
    void resetBuffers() override;
 
    void enableReadWindow(const char* head, const char* tail);
 
private:
    bool peekSlowPath(char& ch) const;
};
 
};
 
#endif // AUX_INPUT_DEVICE_H