Bug 151541 Can't find the embedded image name in Edit Image Item dialog that from library
Details: Can't find the embedded image name in Edit Image Item dialog that from library Step: 1.New a library and insert an embedded image named img1. 2.New a report design and use the library. 3.Drop the img1 from library explorer into layout, and the Edit Image Item dialog pop up. Actual result: In Embedden image selection, nothing image name is list in embedded image list area. And the button of OK is gray. Exception reuslt: Can it show the embedded image from library in list area? I can click cancel to submit the image is insert in report design, but click ok will be more friendly.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ImageBuilder.java
previewButton.setEnabled( false );
				if ( SessionHandleAdapter.getInstance( )
						.getReportDesignHandle( )
						.getVisibleDataSets( )
						.isEmpty( ) )
				{
					bindingButton.setEnabled( false );
				}
				else
				{
					bindingButton.setEnabled( true );
				}
				break;
			case URI_TYPE :
				complete = !StringUtil.isBlank( uriEditor.getText( ) );
				previewButton.setEnabled( complete );
				break;
			case EMBEDDED_TYPE :
				complete = ( embeddedImageList.getSelectionCount( ) > 0 );
				
				break;
			case FILE_TYPE :
				complete = !StringUtil.isBlank( uriEditor.getText( ) );
				previewButton.setEnabled( complete );
				break;
		}
		getOkButton( ).setEnabled( complete );
	}
	private void openExpression( )
	{