Bug 160641 Image from Fragments can not be preview
Details: Image from Fragments can not be preview Step: 1.New an image and select "Image file in BIRT resource folder" 2.Select the image that in Fragments. 3.Preview Actual result: The image can not be preview Excepted result: The image can be preview
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ImageItemExecutor.java
{
				imgExt = strValue.toString( );
				imgExt = FileUtil.getExtFromType( imgExt );
			}
		}
		if ( imgData != null )
		{
			imageContent.setData( imgData );
			imageContent.setExtension( imgExt );
			imageContent.setURI( null );
		}
	}
	protected void handleFileExpressionImage( String fileExpr,
			IImageContent imageContent )
	{
		String imageFile = "";
		Object file = evaluate( fileExpr );
		if ( file != null )
		{
			imageFile = file.toString( );
		}
		else if ( fileExpr != null && fileExpr.length( ) > 0 )
		{
			imageFile = fileExpr;
		}
		handleFileImage( imageFile, imageContent );
	}
	protected void handleFileImage( String imageFile, IImageContent imageContent )
	{