Examples with RowData org.eclipse.swt.layout.RowData used on opensource projects

Example 41 with RowData

use of org.eclipse.swt.layout.RowData in project netxms by netxms.

the class AccessControl method createContents.

/* (non-Javadoc)
	 * @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite)
	 */
@Override
protected Control createContents(Composite parent) {
    Composite dialogArea = (Composite) super.createContents(parent);
    dco = editor.getObject();
    // Initiate loading of user manager plugin if it was not loaded before
    // $NON-NLS-1$ //$NON-NLS-2$
    Platform.getAdapterManager().loadAdapter(new User(""), "org.eclipse.ui.model.IWorkbenchAdapter");
    // Build internal copy of access list
    final NXCSession session = (NXCSession) ConsoleSharedData.getSession();
    for (Long uid : dco.getAccessList()) {
        AbstractUserObject o = session.findUserDBObjectById(uid);
        if (o != null)
            acl.add(o);
    }
    GridLayout layout = new GridLayout();
    layout.verticalSpacing = WidgetHelper.INNER_SPACING;
    layout.marginWidth = 0;
    layout.marginHeight = 0;
    dialogArea.setLayout(layout);
    Label label = new Label(dialogArea, SWT.NONE);
    label.setText("Restrict access to the following users");
    viewer = new TableViewer(dialogArea, SWT.BORDER | SWT.FULL_SELECTION | SWT.MULTI);
    viewer.setContentProvider(new ArrayContentProvider());
    viewer.setLabelProvider(new AccessListLabelProvider());
    viewer.setComparator(new ObjectLabelComparator((ILabelProvider) viewer.getLabelProvider()));
    viewer.getTable().setSortDirection(SWT.UP);
    GridData gd = new GridData();
    gd.horizontalAlignment = SWT.FILL;
    gd.verticalAlignment = SWT.FILL;
    gd.grabExcessHorizontalSpace = true;
    gd.grabExcessVerticalSpace = true;
    gd.heightHint = 300;
    viewer.getTable().setLayoutData(gd);
    setViewerInput();
    Composite buttons = new Composite(dialogArea, SWT.NONE);
    RowLayout buttonLayout = new RowLayout();
    buttonLayout.type = SWT.HORIZONTAL;
    buttonLayout.pack = false;
    buttonLayout.marginWidth = 0;
    buttons.setLayout(buttonLayout);
    gd = new GridData();
    gd.horizontalAlignment = SWT.RIGHT;
    gd.verticalIndent = WidgetHelper.OUTER_SPACING - WidgetHelper.INNER_SPACING;
    buttons.setLayoutData(gd);
    buttonAdd = new Button(buttons, SWT.PUSH);
    buttonAdd.setText("Add");
    buttonAdd.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            addUser();
        }
    });
    RowData rd = new RowData();
    rd.width = WidgetHelper.BUTTON_WIDTH_HINT;
    buttonAdd.setLayoutData(rd);
    buttonRemove = new Button(buttons, SWT.PUSH);
    buttonRemove.setText("Remove");
    buttonRemove.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            removeUsers();
        }
    });
    rd = new RowData();
    rd.width = WidgetHelper.BUTTON_WIDTH_HINT;
    buttonRemove.setLayoutData(rd);
    return dialogArea;
}

Example 42 with RowData

use of org.eclipse.swt.layout.RowData in project netxms by netxms.

the class SummaryTableColumns method createContents.

/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite)
	 */
@Override
protected Control createContents(Composite parent) {
    table = (DciSummaryTable) getElement().getAdapter(DciSummaryTable.class);
    columns = new ArrayList<DciSummaryTableColumn>(table.getColumns().size());
    for (DciSummaryTableColumn c : table.getColumns()) columns.add(new DciSummaryTableColumn(c));
    Composite dialogArea = new Composite(parent, SWT.NONE);
    GridLayout layout = new GridLayout();
    layout.verticalSpacing = WidgetHelper.OUTER_SPACING;
    layout.marginWidth = 0;
    layout.marginHeight = 0;
    layout.numColumns = 2;
    dialogArea.setLayout(layout);
    new Label(dialogArea, SWT.NONE).setText(Messages.get().SummaryTableColumns_Columns);
    viewer = new TableViewer(dialogArea, SWT.BORDER | SWT.MULTI | SWT.FULL_SELECTION);
    GridData gd = new GridData();
    gd.horizontalAlignment = SWT.FILL;
    gd.grabExcessHorizontalSpace = true;
    gd.verticalAlignment = SWT.FILL;
    gd.grabExcessVerticalSpace = true;
    gd.horizontalSpan = 2;
    viewer.getControl().setLayoutData(gd);
    setupColumnList();
    viewer.setInput(columns.toArray());
    Composite leftButtons = new Composite(dialogArea, SWT.NONE);
    gd = new GridData();
    gd.horizontalAlignment = SWT.LEFT;
    leftButtons.setLayoutData(gd);
    RowLayout buttonsLayout = new RowLayout(SWT.HORIZONTAL);
    buttonsLayout.marginBottom = 0;
    buttonsLayout.marginLeft = 0;
    buttonsLayout.marginRight = 0;
    buttonsLayout.marginTop = 0;
    buttonsLayout.spacing = WidgetHelper.OUTER_SPACING;
    buttonsLayout.fill = true;
    buttonsLayout.pack = false;
    leftButtons.setLayout(buttonsLayout);
    upButton = new Button(leftButtons, SWT.PUSH);
    upButton.setText(Messages.get().Thresholds_Up);
    upButton.setEnabled(false);
    upButton.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            moveUp();
        }
    });
    downButton = new Button(leftButtons, SWT.PUSH);
    downButton.setText(Messages.get().Thresholds_Down);
    downButton.setEnabled(false);
    downButton.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            moveDown();
        }
    });
    Composite buttons = new Composite(dialogArea, SWT.NONE);
    gd = new GridData();
    gd.horizontalAlignment = SWT.RIGHT;
    buttons.setLayoutData(gd);
    buttonsLayout = new RowLayout(SWT.HORIZONTAL);
    buttonsLayout.marginBottom = 0;
    buttonsLayout.marginLeft = 0;
    buttonsLayout.marginRight = 0;
    buttonsLayout.marginTop = 0;
    buttonsLayout.spacing = WidgetHelper.OUTER_SPACING;
    buttonsLayout.fill = true;
    buttonsLayout.pack = false;
    buttons.setLayout(buttonsLayout);
    importButton = new Button(buttons, SWT.PUSH);
    importButton.setText(Messages.get().SummaryTableColumns_Import);
    RowData rd = new RowData();
    rd.width = WidgetHelper.BUTTON_WIDTH_HINT;
    importButton.setLayoutData(rd);
    importButton.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetSelected(SelectionEvent e) {
            importColumns();
        }

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }
    });
    addButton = new Button(buttons, SWT.PUSH);
    addButton.setText(Messages.get().Thresholds_Add);
    rd = new RowData();
    rd.width = WidgetHelper.BUTTON_WIDTH_HINT;
    addButton.setLayoutData(rd);
    addButton.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            addColumn();
        }
    });
    modifyButton = new Button(buttons, SWT.PUSH);
    modifyButton.setText(Messages.get().Thresholds_Edit);
    rd = new RowData();
    rd.width = WidgetHelper.BUTTON_WIDTH_HINT;
    modifyButton.setLayoutData(rd);
    modifyButton.setEnabled(false);
    modifyButton.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            editColumn();
        }
    });
    deleteButton = new Button(buttons, SWT.PUSH);
    deleteButton.setText(Messages.get().Thresholds_Delete);
    rd = new RowData();
    rd.width = WidgetHelper.BUTTON_WIDTH_HINT;
    deleteButton.setLayoutData(rd);
    deleteButton.setEnabled(false);
    deleteButton.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            deleteColumns();
        }
    });
    /**
     * Selection change listener for thresholds list **
     */
    viewer.addSelectionChangedListener(new ISelectionChangedListener() {

        @Override
        public void selectionChanged(SelectionChangedEvent event) {
            IStructuredSelection selection = (IStructuredSelection) event.getSelection();
            int index = columns.indexOf(selection.getFirstElement());
            upButton.setEnabled((selection.size() == 1) && (index > 0));
            downButton.setEnabled((selection.size() == 1) && (index >= 0) && (index < columns.size() - 1));
            modifyButton.setEnabled(selection.size() == 1);
            deleteButton.setEnabled(selection.size() > 0);
        }
    });
    viewer.addDoubleClickListener(new IDoubleClickListener() {

        @Override
        public void doubleClick(DoubleClickEvent event) {
            editColumn();
        }
    });
    return dialogArea;
}

Example 43 with RowData

use of org.eclipse.swt.layout.RowData in project netxms by netxms.

the class RuleServerActions method createContents.

/* (non-Javadoc)
	 * @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite)
	 */
@Override
protected Control createContents(Composite parent) {
    editor = (RuleEditor) getElement().getAdapter(RuleEditor.class);
    rule = editor.getRule();
    Composite dialogArea = new Composite(parent, SWT.NONE);
    GridLayout layout = new GridLayout();
    layout.verticalSpacing = WidgetHelper.OUTER_SPACING;
    layout.marginWidth = 0;
    layout.marginHeight = 0;
    dialogArea.setLayout(layout);
    final String[] columnNames = { Messages.get().RuleServerActions_Action };
    final int[] columnWidths = { 300 };
    viewer = new SortableTableViewer(dialogArea, columnNames, columnWidths, 0, SWT.UP, SWT.BORDER | SWT.MULTI | SWT.FULL_SELECTION);
    viewer.setContentProvider(new ArrayContentProvider());
    viewer.setLabelProvider(new WorkbenchLabelProvider());
    viewer.setComparator(new ObjectLabelComparator((ILabelProvider) viewer.getLabelProvider()));
    viewer.addSelectionChangedListener(new ISelectionChangedListener() {

        @Override
        public void selectionChanged(SelectionChangedEvent event) {
            int size = ((IStructuredSelection) viewer.getSelection()).size();
            deleteButton.setEnabled(size > 0);
        }
    });
    actions.putAll(editor.getEditorView().findServerActions(rule.getActions()));
    viewer.setInput(actions.values().toArray());
    GridData gridData = new GridData();
    gridData.verticalAlignment = GridData.FILL;
    gridData.grabExcessVerticalSpace = true;
    gridData.horizontalAlignment = GridData.FILL;
    gridData.grabExcessHorizontalSpace = true;
    gridData.heightHint = 0;
    viewer.getControl().setLayoutData(gridData);
    Composite buttons = new Composite(dialogArea, SWT.NONE);
    RowLayout buttonLayout = new RowLayout();
    buttonLayout.type = SWT.HORIZONTAL;
    buttonLayout.pack = false;
    buttonLayout.marginLeft = 0;
    buttonLayout.marginRight = 0;
    buttons.setLayout(buttonLayout);
    gridData = new GridData();
    gridData.horizontalAlignment = SWT.RIGHT;
    buttons.setLayoutData(gridData);
    addButton = new Button(buttons, SWT.PUSH);
    addButton.setText(Messages.get().RuleServerActions_Add);
    addButton.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            addAction();
        }
    });
    RowData rd = new RowData();
    rd.width = WidgetHelper.BUTTON_WIDTH_HINT;
    addButton.setLayoutData(rd);
    deleteButton = new Button(buttons, SWT.PUSH);
    deleteButton.setText(Messages.get().RuleServerActions_Delete);
    deleteButton.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            deleteAction();
        }
    });
    rd = new RowData();
    rd.width = WidgetHelper.BUTTON_WIDTH_HINT;
    deleteButton.setLayoutData(rd);
    deleteButton.setEnabled(false);
    return dialogArea;
}

Example 44 with RowData

use of org.eclipse.swt.layout.RowData in project netxms by netxms.

the class RuleSourceObjects method createContents.

/* (non-Javadoc)
	 * @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite)
	 */
@Override
protected Control createContents(Composite parent) {
    session = (NXCSession) ConsoleSharedData.getSession();
    editor = (RuleEditor) getElement().getAdapter(RuleEditor.class);
    rule = editor.getRule();
    Composite dialogArea = new Composite(parent, SWT.NONE);
    GridLayout layout = new GridLayout();
    layout.verticalSpacing = WidgetHelper.OUTER_SPACING;
    layout.marginWidth = 0;
    layout.marginHeight = 0;
    dialogArea.setLayout(layout);
    checkInverted = new Button(dialogArea, SWT.CHECK);
    checkInverted.setText(Messages.get().RuleSourceObjects_InvertRule);
    checkInverted.setSelection(rule.isSourceInverted());
    final String[] columnNames = { Messages.get().RuleSourceObjects_Object };
    final int[] columnWidths = { 300 };
    viewer = new SortableTableViewer(dialogArea, columnNames, columnWidths, 0, SWT.UP, SWT.BORDER | SWT.MULTI | SWT.FULL_SELECTION);
    viewer.setContentProvider(new ArrayContentProvider());
    viewer.setLabelProvider(new WorkbenchLabelProvider());
    viewer.setComparator(new ObjectLabelComparator((ILabelProvider) viewer.getLabelProvider()));
    viewer.addSelectionChangedListener(new ISelectionChangedListener() {

        @Override
        public void selectionChanged(SelectionChangedEvent event) {
            int size = ((IStructuredSelection) viewer.getSelection()).size();
            deleteButton.setEnabled(size > 0);
        }
    });
    for (AbstractObject o : session.findMultipleObjects(rule.getSources().toArray(new Long[0]), true)) objects.put(o.getObjectId(), o);
    viewer.setInput(objects.values().toArray());
    GridData gridData = new GridData();
    gridData.verticalAlignment = GridData.FILL;
    gridData.grabExcessVerticalSpace = true;
    gridData.horizontalAlignment = GridData.FILL;
    gridData.grabExcessHorizontalSpace = true;
    gridData.heightHint = 0;
    viewer.getControl().setLayoutData(gridData);
    Composite buttons = new Composite(dialogArea, SWT.NONE);
    RowLayout buttonLayout = new RowLayout();
    buttonLayout.type = SWT.HORIZONTAL;
    buttonLayout.pack = false;
    buttonLayout.marginLeft = 0;
    buttonLayout.marginRight = 0;
    buttons.setLayout(buttonLayout);
    gridData = new GridData();
    gridData.horizontalAlignment = SWT.RIGHT;
    buttons.setLayoutData(gridData);
    addButton = new Button(buttons, SWT.PUSH);
    addButton.setText(Messages.get().RuleSourceObjects_Add);
    addButton.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            addSourceObject();
        }
    });
    RowData rd = new RowData();
    rd.width = WidgetHelper.BUTTON_WIDTH_HINT;
    addButton.setLayoutData(rd);
    deleteButton = new Button(buttons, SWT.PUSH);
    deleteButton.setText(Messages.get().RuleSourceObjects_Delete);
    deleteButton.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            deleteEvent();
        }
    });
    rd = new RowData();
    rd.width = WidgetHelper.BUTTON_WIDTH_HINT;
    deleteButton.setLayoutData(rd);
    return dialogArea;
}

Example 45 with RowData

use of org.eclipse.swt.layout.RowData in project netxms by netxms.

the class Thresholds method createContents.

/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite)
	 */
@Override
protected Control createContents(Composite parent) {
    // Initiate loading of event manager plugin if it was not loaded before
    // $NON-NLS-1$
    Platform.getAdapterManager().loadAdapter(new EventTemplate(0), "org.eclipse.ui.model.IWorkbenchAdapter");
    Composite dialogArea = (Composite) super.createContents(parent);
    dci = editor.getObjectAsItem();
    thresholds = new ArrayList<Threshold>(dci.getThresholds().size());
    for (Threshold t : dci.getThresholds()) thresholds.add(new Threshold(t));
    GridLayout layout = new GridLayout();
    layout.verticalSpacing = WidgetHelper.OUTER_SPACING;
    layout.marginWidth = 0;
    layout.marginHeight = 0;
    dialogArea.setLayout(layout);
    instance = new LabeledText(dialogArea, SWT.NONE);
    instance.setLabel(Messages.get().Thresholds_Instance);
    instance.setText(dci.getInstance());
    GridData gd = new GridData();
    gd.horizontalAlignment = SWT.FILL;
    gd.grabExcessHorizontalSpace = true;
    instance.setLayoutData(gd);
    if (// DCI created by instance discovery
    dci.getTemplateId() == dci.getNodeId())
        instance.getTextControl().setEditable(false);
    checkAllThresholds = new Button(dialogArea, SWT.CHECK);
    checkAllThresholds.setText(Messages.get().Thresholds_ProcessAll);
    checkAllThresholds.setSelection(dci.isProcessAllThresholds());
    Composite thresholdArea = new Composite(dialogArea, SWT.NONE);
    gd = new GridData();
    gd.horizontalAlignment = SWT.FILL;
    gd.grabExcessHorizontalSpace = true;
    gd.verticalAlignment = SWT.FILL;
    gd.grabExcessVerticalSpace = true;
    gd.horizontalSpan = 2;
    thresholdArea.setLayoutData(gd);
    layout = new GridLayout();
    layout.verticalSpacing = WidgetHelper.INNER_SPACING;
    layout.marginWidth = 0;
    layout.marginHeight = 0;
    layout.numColumns = 2;
    thresholdArea.setLayout(layout);
    new Label(thresholdArea, SWT.NONE).setText(Messages.get().Thresholds_Thresholds);
    thresholdList = new TableViewer(thresholdArea, SWT.BORDER | SWT.MULTI | SWT.FULL_SELECTION | SWT.H_SCROLL | SWT.V_SCROLL);
    gd = new GridData();
    gd.horizontalAlignment = SWT.FILL;
    gd.grabExcessHorizontalSpace = true;
    gd.verticalAlignment = SWT.FILL;
    gd.grabExcessVerticalSpace = true;
    gd.horizontalSpan = 2;
    thresholdList.getControl().setLayoutData(gd);
    setupThresholdList();
    thresholdList.setInput(thresholds.toArray());
    Composite leftButtons = new Composite(thresholdArea, SWT.NONE);
    gd = new GridData();
    gd.horizontalAlignment = SWT.LEFT;
    leftButtons.setLayoutData(gd);
    RowLayout buttonsLayout = new RowLayout(SWT.HORIZONTAL);
    buttonsLayout.marginBottom = 0;
    buttonsLayout.marginLeft = 0;
    buttonsLayout.marginRight = 0;
    buttonsLayout.marginTop = 0;
    buttonsLayout.spacing = WidgetHelper.OUTER_SPACING;
    buttonsLayout.fill = true;
    buttonsLayout.pack = false;
    leftButtons.setLayout(buttonsLayout);
    upButton = new Button(leftButtons, SWT.PUSH);
    upButton.setText(Messages.get().Thresholds_Up);
    upButton.setEnabled(false);
    upButton.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            moveUp();
        }
    });
    downButton = new Button(leftButtons, SWT.PUSH);
    downButton.setText(Messages.get().Thresholds_Down);
    downButton.setEnabled(false);
    downButton.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            moveDown();
        }
    });
    Composite buttons = new Composite(thresholdArea, SWT.NONE);
    gd = new GridData();
    gd.horizontalAlignment = SWT.RIGHT;
    buttons.setLayoutData(gd);
    buttonsLayout = new RowLayout(SWT.HORIZONTAL);
    buttonsLayout.marginBottom = 0;
    buttonsLayout.marginLeft = 0;
    buttonsLayout.marginRight = 0;
    buttonsLayout.marginTop = 0;
    buttonsLayout.spacing = WidgetHelper.OUTER_SPACING;
    buttonsLayout.fill = true;
    buttonsLayout.pack = false;
    buttons.setLayout(buttonsLayout);
    addButton = new Button(buttons, SWT.PUSH);
    addButton.setText(Messages.get().Thresholds_Add);
    RowData rd = new RowData();
    rd.width = WidgetHelper.BUTTON_WIDTH_HINT;
    addButton.setLayoutData(rd);
    addButton.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            addThreshold();
        }
    });
    duplicateButton = new Button(buttons, SWT.PUSH);
    duplicateButton.setText("Duplicate");
    rd = new RowData();
    rd.width = WidgetHelper.BUTTON_WIDTH_HINT;
    duplicateButton.setLayoutData(rd);
    duplicateButton.setEnabled(false);
    duplicateButton.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            duplicateThreshold();
        }
    });
    modifyButton = new Button(buttons, SWT.PUSH);
    modifyButton.setText(Messages.get().Thresholds_Edit);
    rd = new RowData();
    rd.width = WidgetHelper.BUTTON_WIDTH_HINT;
    modifyButton.setLayoutData(rd);
    modifyButton.setEnabled(false);
    modifyButton.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            editThreshold();
        }
    });
    deleteButton = new Button(buttons, SWT.PUSH);
    deleteButton.setText(Messages.get().Thresholds_Delete);
    rd = new RowData();
    rd.width = WidgetHelper.BUTTON_WIDTH_HINT;
    deleteButton.setLayoutData(rd);
    deleteButton.setEnabled(false);
    deleteButton.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            deleteThresholds();
        }
    });
    /**
     * Selection change listener for thresholds list **
     */
    thresholdList.addSelectionChangedListener(new ISelectionChangedListener() {

        @Override
        public void selectionChanged(SelectionChangedEvent event) {
            IStructuredSelection selection = (IStructuredSelection) event.getSelection();
            int index = thresholds.indexOf(selection.getFirstElement());
            upButton.setEnabled((selection.size() == 1) && (index > 0));
            downButton.setEnabled((selection.size() == 1) && (index >= 0) && (index < thresholds.size() - 1));
            modifyButton.setEnabled(selection.size() == 1);
            deleteButton.setEnabled(selection.size() > 0);
            duplicateButton.setEnabled(selection.size() > 0);
        }
    });
    thresholdList.addDoubleClickListener(new IDoubleClickListener() {

        @Override
        public void doubleClick(DoubleClickEvent event) {
            editThreshold();
        }
    });
    return dialogArea;
}