Eclipse Rich Ajax Platform
Release 1.3

org.eclipse.swt.dnd
Class ImageTransfer

java.lang.Object
  extended byorg.eclipse.swt.dnd.Transfer
      extended byorg.eclipse.swt.dnd.ByteArrayTransfer
          extended byorg.eclipse.swt.dnd.ImageTransfer

public class ImageTransfer
extends ByteArrayTransfer

The class ImageTransfer provides a platform specific mechanism for converting an Image represented as a java ImageData to a platform specific representation of the data and vice versa.

An example of a java ImageData is shown below:

     Image image = new Image(display, "C:\temp\img1.gif");
 	   ImageData imgData = image.getImageData();
 

Since:
1.3
See Also:
Transfer

Method Summary
static ImageTransfer getInstance()
          Returns the singleton instance of the ImageTransfer class.
protected  int[] getTypeIds()
          Returns the platform specific ids of the data types that can be converted using this transfer agent.
protected  String[] getTypeNames()
          Returns the platform specific names of the data types that can be converted using this transfer agent.
 void javaToNative(Object object, TransferData transferData)
          This implementation of javaToNative converts an ImageData object represented by java ImageData to a platform specific representation.
 Object nativeToJava(TransferData transferData)
          This implementation of nativeToJava converts a platform specific representation of an image to java ImageData.
protected  boolean validate(Object object)
          Test that the object is of the correct format for this Transfer class.
 
Methods inherited from class org.eclipse.swt.dnd.ByteArrayTransfer
getSupportedTypes, isSupportedType
 
Methods inherited from class org.eclipse.swt.dnd.Transfer
registerType
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Method Detail

getInstance

public static ImageTransfer getInstance()
Returns the singleton instance of the ImageTransfer class.

Returns:
the singleton instance of the ImageTransfer class

javaToNative

public void javaToNative(Object object,
                         TransferData transferData)
This implementation of javaToNative converts an ImageData object represented by java ImageData to a platform specific representation.

Overrides:
javaToNative in class ByteArrayTransfer
Parameters:
object - a java ImageData containing the ImageData to be converted
transferData - an empty TransferData object that will be filled in on return with the platform specific format of the data
See Also:
Transfer.nativeToJava(org.eclipse.swt.dnd.TransferData)

nativeToJava

public Object nativeToJava(TransferData transferData)
This implementation of nativeToJava converts a platform specific representation of an image to java ImageData.

Overrides:
nativeToJava in class ByteArrayTransfer
Parameters:
transferData - the platform specific representation of the data to be converted
Returns:
a java ImageData of the image if the conversion was successful; otherwise null
See Also:
Transfer.javaToNative(java.lang.Object, org.eclipse.swt.dnd.TransferData)

getTypeIds

protected int[] getTypeIds()
Description copied from class: Transfer
Returns the platform specific ids of the data types that can be converted using this transfer agent.

Specified by:
getTypeIds in class Transfer
Returns:
the platform specific ids of the data types that can be converted using this transfer agent

getTypeNames

protected String[] getTypeNames()
Description copied from class: Transfer
Returns the platform specific names of the data types that can be converted using this transfer agent.

Specified by:
getTypeNames in class Transfer
Returns:
the platform specific names of the data types that can be converted using this transfer agent.

validate

protected boolean validate(Object object)
Description copied from class: Transfer
Test that the object is of the correct format for this Transfer class.

Overrides:
validate in class Transfer
Parameters:
object - a java representation of the data to be converted
Returns:
true if object is of the correct form for this transfer type

Eclipse Rich Ajax Platform
Release 1.3

Copyright (c) Innoopract Informationssysteme GmbH and others 2002, 2011. All rights reserved.