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108 lines
3.3 KiB
C
108 lines
3.3 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkTextCodecFactory.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/*-------------------------------------------------------------------------
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Copyright 2008 Sandia Corporation.
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Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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the U.S. Government retains certain rights in this software.
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-------------------------------------------------------------------------*/
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/**
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* @class vtkTextCodecFactory
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* @brief maintain a list of text codecs and return instances
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*
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*
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* A single class to hold registered codecs and return instances of them based
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* on either a decriptive name (UTF16 or latin-1) or by asking who can handle a
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* given std::vector<unsigned char>
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*
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* @par Thanks:
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* Thanks to Tim Shed from Sandia National Laboratories for his work
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* on the concepts and to Marcus Hanwell and Jeff Baumes of Kitware for
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* keeping me out of the weeds
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*
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* @sa
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* vtkTextCodec
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*
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*/
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#ifndef vtkTextCodecFactory_h
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#define vtkTextCodecFactory_h
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#include "vtkIOCoreModule.h" // For export macro
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#include "vtkObject.h"
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class vtkTextCodec;
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class VTKIOCORE_EXPORT vtkTextCodecFactory : public vtkObject
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{
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public:
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vtkTypeMacro(vtkTextCodecFactory, vtkObject);
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static vtkTextCodecFactory* New();
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Type for Creation callback.
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*/
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typedef vtkTextCodec* (*CreateFunction)();
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//@{
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/**
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* Provides mechanism to register/unregister additional callbacks to create
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* concrete subclasses of vtkTextCodecFactory to handle different protocols.
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* The registered callbacks are tried in the order they are registered.
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*/
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static void RegisterCreateCallback(CreateFunction callback);
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static void UnRegisterCreateCallback(CreateFunction callback);
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static void UnRegisterAllCreateCallbacks();
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//@}
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/**
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* Given a codec/storage name try to find one of our registered codecs that
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* can handle it. This is non-deterministic, very messy and should not be
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* your first thing to try.
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* The registered callbacks are tried in the order they are registered.
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*/
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static vtkTextCodec* CodecForName(const char* CodecName);
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/**
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* Given a snippet of the stored data name try to find one of our registered
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* codecs that can handle transforming it into unicode.
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* The registered callbacks are tried in the order they are registered.
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*/
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static vtkTextCodec* CodecToHandle(istream& InputStream);
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/**
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* Initialize core text codecs - needed for the static compilation case.
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*/
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static void Initialize();
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protected:
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vtkTextCodecFactory();
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~vtkTextCodecFactory() override;
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private:
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vtkTextCodecFactory(const vtkTextCodecFactory&) = delete;
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void operator=(const vtkTextCodecFactory&) = delete;
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//@{
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/**
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* Data structure used to store registered callbacks.
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*/
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class CallbackVector;
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static CallbackVector* Callbacks;
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//@}
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};
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#endif // vtkTextCodecFactory_h
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