Bug 172431 [eclipse3.3only]BPS17-4.5 Adding Date picker to input DateTime value for Axis Scale
In Axis Scale dialog, provide a Data picker next to the input box for convenience of inputting DataTime value.
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/wizard/format/popup/AbstractScaleSheet.java
{
						getScale( ).setStep( dbl );
					}
				}
			}
			catch ( NumberFormatException e1 )
			{
				txtStepSize.setText( String.valueOf( getScale( ).getStep( ) ) );
			}
		}
		else if ( event.widget.equals( cmbScaleUnit ) )
		{
			getScale( ).setUnit( ScaleUnitType.getByName( LiteralHelper.scaleUnitTypeSet.getNameByDisplayName( cmbScaleUnit.getText( ) ) ) );
		}
		else if ( event.widget.equals( btnStepAuto ) )
		{
			getScale( ).unsetStepNumber( );
			getScale( ).unsetStep( );
			setState( );			
		}
		else if ( event.widget.equals( btnStepSize ) )
		{
			getScale( ).unsetStepNumber( );
			
			txtStepSize.notifyListeners( SWT.Modify, null );
			setState( );			
		}
		else if ( event.widget.equals( btnStepNumber ) )
		{
			getScale( ).unsetStep( );