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Encoder.h
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//
// Encoder.h
//
// $Id: //poco/Main/PDF/include/Poco/PDF/Encoder.h#4 $
//
// Library: PDF
// Package: PDFCore
// Module: Encoder
//
// Definition of the Encoder class.
//
// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#ifndef PDF_Encoder_INCLUDED
#define PDF_Encoder_INCLUDED
#include "Poco/PDF/PDF.h"
#include "Poco/PDF/Resource.h"
#include "Poco/Exception.h"
namespace Poco {
namespace PDF {
class PDF_API Encoder: public Resource<HPDF_Encoder>
/// Encoder class represents encoder resource.
{
public:
enum Type
{
ENCODER_TYPE_SINGLE_BYTE = HPDF_ENCODER_TYPE_SINGLE_BYTE,
/// This encoder is an encoder for single byte characters.
ENCODER_TYPE_DOUBLE_BYTE = HPDF_ENCODER_TYPE_DOUBLE_BYTE,
/// This encoder is an encoder for multi byte characters.
ENCODER_TYPE_UNINITIALIZED = HPDF_ENCODER_TYPE_UNINITIALIZED,
/// This encoder is uninitialized. (May be it is an encoder for multi byte characters.)
ENCODER_TYPE_UNKNOWN = HPDF_ENCODER_UNKNOWN
/// Invalid encoder.
};
enum ByteType
{
ENCODER_BYTE_TYPE_SINGLE = HPDF_BYTE_TYPE_SINGLE,
/// Single byte character.
ENCODER_BYTE_TYPE_LEAD = HPDF_BYTE_TYPE_LEAD,
/// Lead byte of a double-byte character.
ENCODER_BYTE_TYPE_TRIAL = HPDF_BYTE_TYPE_TRIAL,
/// Trailing byte of a double-byte character.
ENCODER_BYTE_TYPE_UNKNOWN = HPDF_BYTE_TYPE_UNKNOWN
/// Invalid encoder or cannot judge the byte type.
};
enum WriteMode
{
WRITE_MODE_HORIZONTAL = HPDF_WMODE_HORIZONTAL,
/// Horizontal writing mode.
WRITE_MODE_VERTICAL = HPDF_WMODE_VERTICAL
/// Vertical writing mode;
};
Encoder(HPDF_Doc* pPDF, const HPDF_Encoder& resource, const std::string& name = "");
/// Creates the encoder.
~Encoder();
/// Destroys the encoder.
Type getType() const;
/// Returns the type of an encoding object.
ByteType getByteType(const std::string& text, int index = 0) const;
/// Returns the type of byte in the text at position index
WriteMode writeMode();
/// Returns the writing mode for the encoding object.
};
//
// inlines
//
inline Encoder::Type Encoder::getType() const
{
return static_cast<Type>(HPDF_Encoder_GetType(handle()));
}
inline Encoder::ByteType Encoder::getByteType(const std::string& text, int index) const
{
if (index < 0)
throw InvalidArgumentException("Negative values not allowed.");
return static_cast<ByteType>(HPDF_Encoder_GetByteType(handle(),
text.c_str(),
static_cast<HPDF_UINT>(index)));
}
inline Encoder::WriteMode Encoder::writeMode()
{
return static_cast<WriteMode>(HPDF_Encoder_GetWritingMode(handle()));
}
} } // namespace Poco::PDF
#endif // PDF_Encoder_INCLUDED