Class SignatureImage

java.lang.Object

org.deltava.beans.DatabaseBean

org.deltava.beans.DatabaseBlobBean

org.deltava.beans.cooler.SignatureImage

All Implemented Interfaces:

Serializable, Comparable<Object>, IDBean, Cacheable

public class SignatureImage
extends DatabaseBlobBean

A bean to store Signature Images for processing.

Since:

2.3

Version:

7.0

Author:

Luke

See Also:

• Serialized Form

Field Summary

Fields inherited from class DatabaseBlobBean

_buffer

Modifier and Type	Field	Description
protected byte[]	_buffer	The buffer for the image/file data.

Constructor Summary

Constructors

Constructor	Description
SignatureImage(int id)	Initializes the bean.

Method Summary

Modifier and Type	Method	Description
int	getHeight()	Returns the image height.
byte[]	getImage(String fmt)	Retrieves the new image in a particular format.
int	getWidth()	Returns the image width.
void	load(byte[] buffer)	Loads the image from a byte array and updates the internal buffer.
void	load(InputStream is)	Loads the image from a stream.
void	watermark(String txt, int tx, int ty)	Marks the signature with a watermark.

Methods inherited from class DatabaseBlobBean

clear, getInputStream, getSize, isLoaded

Modifier and Type	Method	Description
void	clear()	Clears the buffer.
InputStream	getInputStream()	Returns the content of the buffer.
int	getSize()	Returns the size of the image/file data.
boolean	isLoaded()	Returns whether the buffer has been populated.

Methods inherited from class DatabaseBean

cacheKey, compareTo, equals, getHexID, getID, hashCode, setID, validateID, validateID

Modifier and Type	Method	Description
Object	cacheKey()	Returns the cache key for this object.
int	compareTo(Object o)
boolean	equals(Object o)
String	getHexID()	Returns the hexadecimal database ID of this object.
int	getID()	Returns the database ID of this object.
int	hashCode()
void	setID(int id)	Update the database row ID of this bean.
static void	validateID(int oldID, int newID)	Validates a database ID.
static void	validateID(int oldID, int newID, boolean allowZero)	Validates a database ID.

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SignatureImage

public SignatureImage(int id)

Initializes the bean.

Parameters:

id - the Pilot's database ID

Throws:

IllegalArgumentException - if id is zero or negative

Method Details

getHeight

public int getHeight()

Returns the image height.

Returns:

the height in pixels, or -1 if not loaded

getWidth

public int getWidth()

Returns the image width.

Returns:

the width in pixels, or -1 if not loaded

load

public void load(byte[] buffer)

Loads the image from a byte array and updates the internal buffer.

Overrides:

load in class DatabaseBlobBean

Parameters:

buffer - the image buffer

Throws:

IllegalArgumentException - if the image cannot be parsed

See Also:

• DatabaseBlobBean.load(InputStream)

load

public void load(InputStream is)
          throws IOException

Loads the image from a stream.

Overrides:

load in class DatabaseBlobBean

Parameters:

is - the stream containing the data

Throws:

IOException - if an error occurs reading the stream data

See Also:

• DatabaseBlobBean.load(byte[])

watermark

public void watermark(String txt,
 int tx,
 int ty)

Marks the signature with a watermark.

Parameters:

txt - the watermark text

tx - the x-coordinate of the text

ty - the y-coordinate of the text

getImage

public byte[] getImage(String fmt)
                throws IOException

Retrieves the new image in a particular format.

Parameters:

fmt - the format code (eg. gif, jpg, png)

Returns:

the formatted image

Throws:

IOException - if an error occurs