Class BlockTransformBase

Base class for all block transformations.

Inheritance
System.Object
BlockTransformBase
Inherited Members
System.Object.ToString()
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
Namespace: Telerik.Windows.Zip
Assembly: Telerik.Windows.Zip.dll

Syntax

public abstract class BlockTransformBase : IBlockTransform, IDisposable

Constructors

BlockTransformBase()

Declaration
protected BlockTransformBase()

Properties

CanReuseTransform

Gets a value indicating whether the current transform can be reused.

Declaration
public abstract bool CanReuseTransform { get; }
Property Value
System.Boolean

true if the current transform can be reused; otherwise, false.
Implements

CanTransformMultipleBlocks

Gets a value indicating whether multiple blocks can be transformed.

Declaration
public abstract bool CanTransformMultipleBlocks { get; }
Property Value
System.Boolean

true if multiple blocks can be transformed; otherwise, false.
Implements

FixedInputBlockSize

Gets or sets value which indicates whether the transformation uses input buffer of the fixed size.

Declaration
protected bool FixedInputBlockSize { get; set; }
Property Value
System.Boolean

Header

Gets transformation header (if required).

Declaration
public TransformationHeader Header { get; }
Property Value
TransformationHeader

Implements

InputBlockSize

Gets the input block size.

Declaration
public abstract int InputBlockSize { get; }
Property Value
System.Int32

The size of the input data blocks in bytes.
Implements

OutputBlockSize

Gets the output block size.

Declaration
public abstract int OutputBlockSize { get; }
Property Value
System.Int32

The size of the output data blocks in bytes.
Implements

Methods

CreateHeader(CompressionSettings)

Creates transformation header to be written into the output stream.

Declaration
public virtual void CreateHeader(CompressionSettings compressionSettings = null)
Parameters
CompressionSettings compressionSettings

Implements

Dispose()

Releases the resources used by the current instance of the ZipArchive class.

Declaration
public void Dispose()
Implements
System.IDisposable.Dispose()

Dispose(Boolean)

Releases the unmanaged resources used by the transform and optionally releases the managed resources.

Declaration
protected abstract void Dispose(bool disposing)
Parameters
System.Boolean disposing

Value which indicates whether both managed and unmanaged resources (true) on only unmanaged resources (false) should be released.

InitFooterReading(Int32)

Initialize reading of the transformation footer.

Declaration
public virtual void InitFooterReading(int compressedSize)
Parameters
System.Int32 compressedSize

Implements

InitHeaderReading(CompressionSettings)

Initialize reading of the transformation header.

Declaration
public virtual void InitHeaderReading(CompressionSettings settings = null)
Parameters
CompressionSettings settings

Implements

ProcessFooter()

Process transformation footer has been read.

Declaration
public virtual void ProcessFooter()
Implements

ProcessHeader()

Process transformation header has been read.

Declaration
public virtual void ProcessHeader()
Implements

TransformBlock(Byte[], Int32, Int32, Byte[], Int32)

Transforms the specified region of the input byte array and copies the resulting transform to the specified region of the output byte array.

Declaration
public abstract int TransformBlock(byte[] inputBuffer, int inputOffset, int inputCount, byte[] outputBuffer, int outputOffset)
Parameters
System.Byte[] inputBuffer

The input for which to compute the transform.

System.Int32 inputOffset

The offset into the input byte array from which to begin using data.

System.Int32 inputCount

The number of bytes in the input byte array to use as data.

System.Byte[] outputBuffer

The output to which to write the transform.

System.Int32 outputOffset

The offset into the output byte array from which to begin writing data.

Returns
System.Int32

The number of bytes written.
Implements

TransformFinalBlock(Byte[], Int32, Int32)

Transforms the specified region of the specified byte array.

Declaration
public abstract byte[] TransformFinalBlock(byte[] inputBuffer, int inputOffset, int inputCount)
Parameters
System.Byte[] inputBuffer

The input for which to compute the transform.

System.Int32 inputOffset

The offset into the byte array from which to begin using data.

System.Int32 inputCount

The number of bytes in the byte array to use as data.

Returns
System.Byte[]

The computed transform.
Implements

ValidateInputBufferParameters(Byte[], Int32, Int32, Boolean, Boolean)

Validates parameters of the input buffer.

Declaration
protected void ValidateInputBufferParameters(byte[] inputBuffer, int inputOffset, int inputCount, bool validateBlockSize, bool allowZeroCount)
Parameters
System.Byte[] inputBuffer

The input for which to compute the transform.

System.Int32 inputOffset

The offset into the input byte array from which to begin using data.

System.Int32 inputCount

The number of bytes in the input byte array to use as data.

System.Boolean validateBlockSize

Indicates whether buffer block size should be validated. Should be true for the TransformBlock and false for the TransformFinalBlock.
System.Boolean allowZeroCount

Indicates whether count can be zero.

ValidateParameters(Byte[], Int32, Int32, Byte[], Int32, Boolean)

Validates parameters of the transform operation.

Declaration
protected void ValidateParameters(byte[] inputBuffer, int inputOffset, int inputCount, byte[] outputBuffer, int outputOffset, bool allowZeroCount)
Parameters
System.Byte[] inputBuffer

The input for which to compute the transform.

System.Int32 inputOffset

The offset into the input byte array from which to begin using data.

System.Int32 inputCount

The number of bytes in the input byte array to use as data.

System.Byte[] outputBuffer

The output to which to write the transform.

System.Int32 outputOffset

The offset into the output byte array from which to begin writing data.

System.Boolean allowZeroCount

Indicates whether input count can be zero.

Extension Methods