Bug 108017 [Markers] Disabling a marker type disables the whole filter
20050825 When you disable a marker type it disables the whole dialog.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/DialogMarkerFilter.java
Button addNew = new Button(buttons,SWT.PUSH);
		addNew.setText(MarkerMessages.MarkerFilter_addFilterName);
		addNew.addSelectionListener(new SelectionAdapter(){
			public void widgetSelected(SelectionEvent e) {
				InputDialog newDialog =
					new InputDialog(
							getShell(),
							MarkerMessages.MarkerFilterDialog_title,
							MarkerMessages.MarkerFilterDialog_message,
							MarkerMessages.MarkerFilter_newFilterName,
							new IInputValidator(){
								/* (non-Javadoc)
								 * @see org.eclipse.jface.dialogs.IInputValidator#isValid(java.lang.String)
								 */
								public String isValid(String newText) {
									if (newText.length() == 0)
										return MarkerMessages.MarkerFilterDialog_emptyMessage;
									return null;
								}
							}
				);
				newDialog.open();
				String newName = newDialog.getValue();
				if(newName != null){
					createNewFilter(newName);					
				}
			}
		});