mirror of
https://github.com/minetest/irrlicht.git
synced 2024-11-18 13:43:48 +01:00
59fc4401f1
The commit also establishes a precedent of leaving off the `virtual` keyword in overrides. Although not strictly necessary, I believe this is good for readability because it makes it clear it is an override and not a pure virtual function, and it helps keep line lengths shorter. We should move towards eliminating the macro altogether, but the definition has been left in with a note on deprecation so that in-progress work will not suffer merge conflicts.
69 lines
1.7 KiB
C++
69 lines
1.7 KiB
C++
// Copyright (C) 2002-2012 Nikolaus Gebhardt
|
|
// This file is part of the "Irrlicht Engine".
|
|
// For conditions of distribution and use, see copyright notice in irrlicht.h
|
|
|
|
#ifndef __C_LIMIT_READ_FILE_H_INCLUDED__
|
|
#define __C_LIMIT_READ_FILE_H_INCLUDED__
|
|
|
|
#include "IReadFile.h"
|
|
#include "irrString.h"
|
|
|
|
namespace irr
|
|
{
|
|
class CUnicodeConverter;
|
|
|
|
namespace io
|
|
{
|
|
|
|
/*! this is a read file, which is limited to some boundaries,
|
|
so that it may only start from a certain file position
|
|
and may only read until a certain file position.
|
|
This can be useful, for example for reading uncompressed files
|
|
in an archive (zip, tar).
|
|
!*/
|
|
class CLimitReadFile : public IReadFile
|
|
{
|
|
public:
|
|
|
|
CLimitReadFile(IReadFile* alreadyOpenedFile, long pos, long areaSize, const io::path& name);
|
|
|
|
virtual ~CLimitReadFile();
|
|
|
|
//! returns how much was read
|
|
size_t read(void* buffer, size_t sizeToRead) override;
|
|
|
|
//! changes position in file, returns true if successful
|
|
//! if relativeMovement==true, the pos is changed relative to current pos,
|
|
//! otherwise from begin of file
|
|
bool seek(long finalPos, bool relativeMovement = false) override;
|
|
|
|
//! returns size of file
|
|
long getSize() const override;
|
|
|
|
//! returns where in the file we are.
|
|
long getPos() const override;
|
|
|
|
//! returns name of file
|
|
const io::path& getFileName() const override;
|
|
|
|
//! Get the type of the class implementing this interface
|
|
EREAD_FILE_TYPE getType() const override
|
|
{
|
|
return ERFT_LIMIT_READ_FILE;
|
|
}
|
|
|
|
private:
|
|
|
|
io::path Filename;
|
|
long AreaStart;
|
|
long AreaEnd;
|
|
long Pos;
|
|
IReadFile* File;
|
|
};
|
|
|
|
} // end namespace io
|
|
} // end namespace irr
|
|
|
|
#endif
|
|
|