Bug 117149 Add additional datapoint markers
I would like to propose adding additional datapoint markers. Attached is a set of markers I would like supported.
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/composites/MarkerIconDialog.java
switchTo( LOCAL_TYPE );
		}
		else if ( e.widget.equals( btnAdd ) )
		{
			uriEditor.setText( uriEditor.getText( ).trim( ) );
			String path = uriEditor.getText( );
			iconList.add( path );
			iconList.select( iconList.indexOf( path ) );
			addIconToPalette( );
			updateButton( );
		}
		else if ( e.widget.equals( btnPreview ) )
		{
			uriEditor.setText( uriEditor.getText( ).trim( ) );
			String path = uriEditor.getText( );
			preview( path );
		}
		else if ( e.widget.equals( iconList ) )
		{
			String path = iconList.getSelection( )[0];
			preview( path );
			updateButton( );
		}
		else if ( e.widget.equals( btnBrowse ) )
		{
			FileDialog fileChooser = new FileDialog( shell, SWT.OPEN );
			fileChooser.setText( Messages.getString( "MarkerIconDialog.Chooser.Title" ) ); 
			fileChooser.setFilterExtensions( new String[]{
					"*.gif", "*.jpg", "*.png" 
			} );