Workflow visual task editor performance issue

Tony Lam added a comment - 02/Dec/10 8:59 PM One potential solution is to use Control.moveAbove(Control) or Control.moveBelow(Control) + Control.layout() to avoid total refresh. See: http://dev.eclipse.org/newslists/news.eclipse.platform.swt/msg09649.html Test code: public class TestWidgetOrdering { public static void main( String [] args) { Display display = new Display(); Shell shell = new Shell(display); shell.setLayout( new GridLayout()); final Composite holder = new Composite(shell, SWT.NONE); GridDataFactory.fillDefaults().grab( true , true ).applyTo(holder); holder.setLayout( new FillLayout()); final Label label1 = new Label(holder, SWT.NONE); label1.setText( "1" ); final Label label2 = new Label(holder, SWT.NONE); label2.setText( "2" ); Label label3 = new Label(holder, SWT.NONE); label3.setText( "3" ); Label label4 = new Label(holder, SWT.NONE); label4.setText( "4" ); Label label5 = new Label(holder, SWT.NONE); label5.setText( "5" ); Button button = new Button(shell, SWT.PUSH); button.setText( "Move" ); button.addSelectionListener( new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { label1.moveBelow(label2); holder.layout(); } }); shell.pack(); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose(); } }

Norman Xiong added a comment - 20/Feb/12 4:39 PM Resolved by making the script much shorter.