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java.lang.Object org.eclipse.swt.dnd.Transfer org.eclipse.swt.dnd.ByteArrayTransfer org.eclipse.swt.dnd.ImageTransfer
public class ImageTransfer
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();
Transfer
Method Summary | |
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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 java.lang.String[] |
getTypeNames()
Returns the platform specific names of the data types that can be converted using this transfer agent. |
void |
javaToNative(java.lang.Object object,
TransferData transferData)
This implementation of javaToNative converts an ImageData
object represented by java ImageData to a platform specific
representation. |
java.lang.Object |
nativeToJava(TransferData transferData)
This implementation of nativeToJava converts a platform
specific representation of an image to java ImageData . |
protected boolean |
validate(java.lang.Object object)
Test that the object is of the correct format for this Transfer class. |
Methods inherited from class org.eclipse.swt.dnd.ByteArrayTransfer |
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getSupportedTypes, isSupportedType |
Methods inherited from class org.eclipse.swt.dnd.Transfer |
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registerType |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
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public static ImageTransfer getInstance()
public void javaToNative(java.lang.Object object, TransferData transferData)
javaToNative
converts an ImageData
object represented by java ImageData
to a platform specific
representation.
javaToNative
in class ByteArrayTransfer
object
- a java ImageData
containing the ImageData to be
convertedtransferData
- an empty TransferData
object that will be
filled in on return with the platform specific format of the dataTransfer.nativeToJava(org.eclipse.swt.dnd.TransferData)
public java.lang.Object nativeToJava(TransferData transferData)
nativeToJava
converts a platform
specific representation of an image to java ImageData
.
nativeToJava
in class ByteArrayTransfer
transferData
- the platform specific representation of the data to be
converted
ImageData
of the image if the conversion was
successful; otherwise nullTransfer.javaToNative(java.lang.Object, org.eclipse.swt.dnd.TransferData)
protected int[] getTypeIds()
Transfer
getTypeIds
in class Transfer
protected java.lang.String[] getTypeNames()
Transfer
getTypeNames
in class Transfer
protected boolean validate(java.lang.Object object)
Transfer
validate
in class Transfer
object
- a java representation of the data to be converted
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