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
grpScale.setLayoutData( gdGRPScale );
			GridLayout glScale = new GridLayout( );
			glScale.numColumns = 4;
			glScale.horizontalSpacing = 5;
			glScale.verticalSpacing = 5;
			glScale.marginHeight = 2;
			glScale.marginWidth = 7;
			grpScale.setLayout( glScale );
			grpScale.setText( Messages.getString( "AbstractScaleSheet.Label.Step" ) ); 
		}
		
		btnStepAuto = new Button( grpScale, SWT.RADIO );
		{
			GridData gd = new GridData( );
			gd.horizontalSpan = 4;
			btnStepAuto.setLayoutData( gd );
			btnStepAuto.setText( Messages.getString( "AbstractScaleSheet.Label.Auto" ) ); 
			btnStepAuto.addListener( SWT.Selection, this );
		}
		btnStepSize = new Button( grpScale, SWT.RADIO );
		{
			btnStepSize.setText( Messages.getString( "AbstractScaleSheet.Label.StepSize" ) ); 
			btnStepSize.addListener( SWT.Selection, this );
		}
		txtStepSize = new TextEditorComposite( grpScale, SWT.BORDER
				| SWT.SINGLE, TextEditorComposite.TYPE_NUMBERIC );
		{
			GridData gd = new GridData( GridData.FILL_HORIZONTAL );
			gd.widthHint = 100;
			txtStepSize.setLayoutData( gd );