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
innerComp.setLayout( gl );
		btnAdd = new Button( innerComp, SWT.PUSH );
		btnAdd.setText( Messages.getString( "MarkerIconDialog.Lbl.Add" ) ); 
		btnAdd.setLayoutData( new GridData( GridData.HORIZONTAL_ALIGN_END ) );
		btnAdd.setEnabled( false );
		btnAdd.addSelectionListener( this );
		btnPreview = new Button( innerComp, SWT.PUSH );
		btnPreview.setText( Messages.getString( "MarkerIconDialog.Lbl.Preview" ) ); 
		btnPreview.setLayoutData( new GridData( GridData.HORIZONTAL_ALIGN_END ) );
		btnPreview.setEnabled( false );
		btnPreview.addSelectionListener( this );
	}
	private void swtichToListType( )
	{
		Composite buttonBar = new Composite( inputArea, SWT.NONE );
		GridLayout gl = new GridLayout( );
		gl.marginWidth = 0;
		gl.marginHeight = 0;
		buttonBar.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		buttonBar.setLayout( gl );
		Label description = new Label( buttonBar, SWT.NONE );
		description.setLayoutData( new GridData( GridData.HORIZONTAL_ALIGN_BEGINNING ) );
		description.setText( Messages.getString( "MarkerIconDialog.Lbl.Description" ) ); 
		btnBrowse = new Button( buttonBar, SWT.PUSH );
		btnBrowse.setText( Messages.getString( "MarkerIconDialog.Lbl.Browse" ) ); 
		GridData gd = new GridData( GridData.HORIZONTAL_ALIGN_END );
		gd.grabExcessHorizontalSpace = true;
		btnBrowse.setLayoutData( gd );
		btnBrowse.addSelectionListener( this );
	}