Java tutorial
/* * Copyright (c) 2007 Borland Software Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Borland Software Corporation - initial API and implementation */ package org.eclipse.gmf.graphdef.editor.sheet; import java.util.ArrayList; import java.util.Collection; import java.util.Iterator; import org.eclipse.core.runtime.IAdaptable; import org.eclipse.emf.ecore.EObject; import org.eclipse.gef.EditPart; import org.eclipse.gmf.runtime.diagram.ui.properties.sections.AbstractModelerPropertySection; import org.eclipse.gmf.runtime.notation.View; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.CCombo; import org.eclipse.swt.custom.CLabel; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.layout.FormAttachment; import org.eclipse.swt.layout.FormData; import org.eclipse.swt.layout.FormLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.DateTime; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Layout; import org.eclipse.swt.widgets.Spinner; import org.eclipse.swt.widgets.Text; import org.eclipse.swt.widgets.Widget; import org.eclipse.ui.IWorkbenchPart; import org.eclipse.ui.forms.events.ExpansionEvent; import org.eclipse.ui.forms.events.IExpansionListener; import org.eclipse.ui.forms.widgets.ExpandableComposite; import org.eclipse.ui.views.properties.tabbed.ITabbedPropertyConstants; import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage; public abstract class AbstractCustomSectionParent extends AbstractModelerPropertySection { public abstract void doCreateControls(Composite parent, TabbedPropertySheetPage tabbedPropertySheetPage); public abstract void doDispose(); protected abstract ModelUpdater createModelUpdater(); protected static final String EMPTY_STRING = ""; //$NON-NLS-1$ private TabbedPropertySheetPage myTabbedPropertySheetPage; private boolean areControlsCreated; private IExpansionListener myExpansionListener; private ModelUpdater myListener; private Collection mySavedSelection = new ArrayList(); public void createControls(Composite parent, TabbedPropertySheetPage tabbedPropertySheetPage) { super.createControls(parent, tabbedPropertySheetPage); myTabbedPropertySheetPage = tabbedPropertySheetPage; doCreateControls(parent, tabbedPropertySheetPage); areControlsCreated = true; } public void dispose() { if (areControlsCreated) { doDispose(); areControlsCreated = false; } super.dispose(); } public boolean shouldUseExtraSpace() { return true; } // XXX [artem] revisit - what's the reason to save copy of selection when it's available from super? protected final Collection getSavedSelection() { //StructuredSelection structured = (StructuredSelection) super.getSelection(); //return structured.toList(); return mySavedSelection; } public void setInput(IWorkbenchPart part, ISelection selection) { if (selection.isEmpty() || false == selection instanceof StructuredSelection) { super.setInput(part, selection); return; } final StructuredSelection structuredSelection = ((StructuredSelection) selection); ArrayList transformedSelection = new ArrayList(structuredSelection.size()); for (Iterator it = structuredSelection.iterator(); it.hasNext();) { Object r = transformSelection(it.next()); if (r != null) { transformedSelection.add(r); } } mySavedSelection = transformedSelection; super.setInput(part, new StructuredSelection(transformedSelection)); } protected Object transformSelection(Object selected) { if (selected instanceof EditPart) { Object model = ((EditPart) selected).getModel(); return model instanceof View ? ((View) model).getElement() : null; } if (selected instanceof View) { return ((View) selected).getElement(); } if (selected instanceof IAdaptable) { View view = (View) ((IAdaptable) selected).getAdapter(View.class); if (view != null) { return view.getElement(); } } return selected; } protected EObject getEObject() { if (getSavedSelection() != null && !getSavedSelection().isEmpty()) { return (EObject) getSavedSelection().iterator().next(); } return super.getEObject(); } protected ModelUpdater getListener() { if (myListener == null) { myListener = createModelUpdater(); } return myListener; } public static abstract class ModelUpdater implements ModifyListener, SelectionListener { public abstract void applyChangesFrom(Widget widget); private boolean nonUserChange; public boolean isNonUserChange() { return nonUserChange; } public void modifyText(ModifyEvent e) { if (!isNonUserChange()) { applyChangesFrom(e.widget); } } public void widgetDefaultSelected(SelectionEvent e) { widgetSelected(e); } public void widgetSelected(SelectionEvent e) { if (!isNonUserChange()) { applyChangesFrom(e.widget); } } public void startListeningTo(Spinner spinner) { spinner.addModifyListener(this); spinner.addSelectionListener(this); } public void stopListeningTo(Spinner spinner) { if (!spinner.isDisposed()) { spinner.removeModifyListener(this); spinner.removeSelectionListener(this); } } public void startListeningTo(DateTime dateTime) { dateTime.addSelectionListener(this); } public void stopListeningTo(DateTime dateTime) { if (!dateTime.isDisposed()) { dateTime.removeSelectionListener(this); } } public void startListeningTo(CCombo combo) { combo.addSelectionListener(this); } public void stopListeningTo(CCombo combo) { if (!combo.isDisposed()) { combo.removeSelectionListener(this); } } public void startListeningTo(Text text) { text.addModifyListener(this); text.addSelectionListener(this); } public void stopListeningTo(Text text) { if (!text.isDisposed()) { text.removeModifyListener(this); text.removeSelectionListener(this); } } public void startListeningTo(Button button) { button.addSelectionListener(this); } public void stopListeningTo(Button button) { if (!button.isDisposed()) { button.removeSelectionListener(this); } } public void startNonUserChange() { nonUserChange = true; } public void finishNonUserChange() { nonUserChange = false; } } protected IExpansionListener getExpansionListener(final Composite parent) { if (myExpansionListener == null) { myExpansionListener = new IExpansionListener() { public void expansionStateChanged(ExpansionEvent e) { relayoutExpandBar(parent); } public void expansionStateChanging(ExpansionEvent e) { } }; } return myExpansionListener; } protected void relayoutExpandBar(Composite expandBar) { Control control = myTabbedPropertySheetPage.getControl(); Point size = control.getSize(); control.setSize(size.x - 1, size.y - 1); control.setSize(size.x, size.y); } // helpers used by old handwritten custom sections protected Layout createStandardFormLayout() { FormLayout layout = new FormLayout(); layout.marginWidth = ITabbedPropertyConstants.HSPACE + 2; layout.marginHeight = ITabbedPropertyConstants.VSPACE; layout.spacing = ITabbedPropertyConstants.VMARGIN + 1; return layout; } protected static FormData createFormData(Control leftControl, Control topControl, boolean lowermost) { return createFormData(leftControl, topControl, null, lowermost); } protected static FormData createFormData(Control leftControl, Control topControl, Control rightControl, boolean lowermost) { return createFormData(leftControl, topControl, rightControl, null, true, true, lowermost, false); } protected static FormData createFormData(Control leftControl, Control topControl, Control rightControl, Control bottomControl, boolean defaultIsLeft, boolean defaultIsTop, boolean lowermost, boolean rightmost) { FormData data = new FormData(); if (leftControl != null) { data.left = new FormAttachment(leftControl); } else if (defaultIsLeft) { data.left = new FormAttachment(0); } if (leftControl == null && topControl != null && !defaultIsLeft) { Object sd = topControl.getLayoutData(); if (sd instanceof FormData) { FormData topData = (FormData) sd; FormAttachment topLeft = topData.left; if (topLeft != null && !(topLeft.control instanceof CLabel && (topControl instanceof Spinner || topControl instanceof Text))) { data.left = topLeft; } } } if (topControl != null) { data.top = new FormAttachment(topControl); if (topControl instanceof Spinner || topControl instanceof Text) { Object sd = topControl.getLayoutData(); if (sd instanceof FormData) { FormData topData = (FormData) sd; FormAttachment topLeft = topData.left; if (topLeft != null && topLeft.control instanceof CLabel) { data.top = topLeft; } } } } else if (defaultIsTop) { data.top = new FormAttachment(0); } if (topControl == null && leftControl != null && !defaultIsTop) { Object sd = leftControl.getLayoutData(); if (sd instanceof FormData) { FormData topData = (FormData) sd; FormAttachment leftTop = topData.top; if (leftTop != null) { data.top = leftTop; if (leftTop.control instanceof Spinner || leftTop.control instanceof Text) { Object sd2 = leftTop.control.getLayoutData(); if (sd2 instanceof FormData) { FormData topDataLeftTop = (FormData) sd2; FormAttachment topLeft = topDataLeftTop.left; if (topLeft != null && topLeft.control instanceof CLabel) { data.top = topLeft; } } } } } } if (rightControl != null) { data.right = new FormAttachment(rightControl); } else if (rightmost) { data.right = new FormAttachment(100); } if (bottomControl != null) { data.bottom = new FormAttachment(bottomControl); } else if (lowermost) { data.bottom = new FormAttachment(100); } return data; } protected static FormData createFillFormData(Control leftControl, Control topControl, Control rightControl, Control bottomControl, boolean defaultIsLeft, boolean defaultIsTop, boolean lowermost, boolean rightmost, boolean fillHorizonral, boolean fillVertical) { FormData data = new FormData(); data.left = new FormAttachment(0); data.right = new FormAttachment(100); data.top = new FormAttachment(0); data.bottom = new FormAttachment(100); return data; } protected Composite createFlatFormComposite(Composite parent, int leftPosition) { return createFlatFormComposite(parent, leftPosition, false); } protected Composite createFlatFormComposite(Composite parent, int leftPosition, boolean noData) { return createFlatFormComposite(parent, null, null, null, null, false, true, false, true, leftPosition, noData); } protected Composite createFlatFormComposite(Composite parent, Control leftControl, Control topControl, Control rightControl, Control bottomControl, boolean defaultIsLeft, boolean defaultIsTop, boolean lowermost, boolean rightmost, int leftPosition, boolean noData) { Composite pane = getWidgetFactory().createFlatFormComposite(parent); if (!noData) { FormData data = createFormData(leftControl, topControl, rightControl, bottomControl, defaultIsLeft, defaultIsTop, lowermost, rightmost); if (leftPosition != SWT.DEFAULT) { data.left = new FormAttachment(leftPosition); } pane.setLayoutData(data); } return pane; } protected ExpandableComposite createLayoutParamsExpandableComposite(Composite parent, String label, Control topControl, boolean rightmost) { return createExpandableComposite(parent, label, null, topControl, false, rightmost); } protected ExpandableComposite createExpandableComposite(Composite parent, String label, Control leftControl, Control topControl, boolean lowermost, boolean rightmost) { ExpandableComposite expandable = getWidgetFactory().createExpandableComposite(parent, ExpandableComposite.TWISTIE | ExpandableComposite.CLIENT_INDENT | ExpandableComposite.TITLE_BAR); expandable.setText(label); expandable.setBackground(getWidgetFactory().getHyperlinkGroup().getBackground()); expandable.setActiveToggleColor(getWidgetFactory().getHyperlinkGroup().getActiveForeground()); expandable.setTitleBarForeground(getWidgetFactory().getHyperlinkGroup().getForeground()); FormData data = createFormData(leftControl, topControl, null, null, true, true, lowermost, rightmost); expandable.setLayoutData(data); return expandable; } protected Group createGroup(Composite parent, String label) { return createGroup(parent, label, false); } protected Group createGroup(Composite parent, String label, boolean noData) { return createGroup(parent, label, null, null, noData); } protected Group createGroup(Composite parent, String label, Control leftComposite, Control topComposite) { return createGroup(parent, label, leftComposite, topComposite, false); } protected Group createGroup(Composite parent, String label, Control leftComposite, Control topComposite, boolean noData) { return createGroup(parent, label, leftComposite, topComposite, true, true, false, false, noData); } protected Group createGroup(Composite parent, String label, Control leftComposite, Control topComposite, boolean defaultIsTop, boolean defaultIsLeft, boolean lowermost, boolean rightmost, boolean noData) { Group group = getWidgetFactory().createGroup(parent, label); if (!noData) { FormData data = createFormData(leftComposite, topComposite, null, null, defaultIsLeft, defaultIsTop, lowermost, rightmost); group.setLayoutData(data); } group.setLayout(createStandardFormLayout()); return group; } protected Button createRadio(Composite parent, Control topControl, boolean lowermost, Image image) { return createRadio(parent, image, EMPTY_STRING, 0, SWT.DEFAULT, topControl, 0, lowermost); } protected Button createRadio(Composite parent, String label, Control topControl, int rightAlignment) { return createRadio(parent, null, label, 0, rightAlignment, topControl, SWT.DEFAULT, false); } protected Button createRadio(Composite parent, String label, Control topControl, boolean lowermost) { return createRadio(parent, null, label, 0, SWT.DEFAULT, topControl, SWT.DEFAULT, lowermost); } protected Button createRadio(Composite parent, Image image, String label, int leftAlignment, int rightAlignment, int topAlignment, boolean lowermost) { return createRadio(parent, image, label, leftAlignment, rightAlignment, null, topAlignment, lowermost); } protected Button createRadio(Composite parent, Image image, String label, int leftAlignment, int rightAlignment, Control topControl, int topAlignment, boolean lowermost) { return createRadio(parent, image, label, null, leftAlignment, topControl, topAlignment, null, rightAlignment, true, true, lowermost, false); } protected Button createRadio(Composite parent, Image image, String label, Control leftControl, int leftAlignment, Control topControl, int topAlignment, Control rightControl, int rightAlignment, boolean defaultIsLeft, boolean defaultIsTop, boolean lowermost, boolean rightmost) { Button radio = getWidgetFactory().createButton(parent, label == null ? EMPTY_STRING : label, SWT.RADIO); if (image != null) { radio.setImage(image); } FormData data = createFormData(leftControl, topControl, rightControl, null, defaultIsLeft, defaultIsTop, lowermost, rightmost); if (leftControl == null && SWT.DEFAULT != leftAlignment) { data.left = new FormAttachment(leftAlignment); } if (rightControl == null && SWT.DEFAULT != rightAlignment) { data.right = new FormAttachment(rightAlignment); } if (topControl == null && SWT.DEFAULT != topAlignment) { data.top = new FormAttachment(topAlignment); } radio.setLayoutData(data); return radio; } protected Button createCheckbox(Composite parent, String label, Control topControl, Control leftControl) { return createCheckbox(parent, label, topControl, leftControl, false); } protected Button createCheckbox(Composite parent, String label, Control topControl, Control leftControl, boolean lowermost) { return createCheckbox(parent, label, topControl, leftControl, true, true, lowermost, SWT.DEFAULT); } protected Button createCheckbox(Composite parent, String label, Control topControl, Control leftControl, boolean defaultIsTop, boolean defaultIsLeft, boolean lowermost, int leftAlignment) { Button checkbox = getWidgetFactory().createButton(parent, label, SWT.CHECK); FormData data = createFormData(leftControl, topControl, null, null, defaultIsLeft, defaultIsTop, lowermost, false); if (leftAlignment != SWT.DEFAULT) { data.left = new FormAttachment(leftAlignment); } checkbox.setLayoutData(data); return checkbox; } protected Spinner createSpinnerWidget(Composite parent, String label, Control leftWidget) { return createSpinnerWidget(parent, label, leftWidget, null, false, false); } protected Spinner createSpinnerWidget(Composite parent, String label, Control leftWidget, Control topWidget, boolean rightlast, boolean horizontalNotVertical) { return createSpinnerWidget(parent, label, leftWidget, topWidget, false, rightlast, horizontalNotVertical, 1, 999, 1, 100); } protected Spinner createSpinnerWidget(Composite parent, String label, Control leftControl, Control topControl, boolean lowermost, boolean rightmost, boolean horizontalNotVertical, int min, int max, int inc, int pageInc) { Spinner spinner = new Spinner(parent, SWT.BORDER | (horizontalNotVertical ? SWT.H_SCROLL : SWT.V_SCROLL)); spinner.setMinimum(min); spinner.setMaximum(max); spinner.setIncrement(inc); spinner.setPageIncrement(pageInc); spinner.setBackground(parent.getBackground()); spinner.setForeground(parent.getForeground()); Control leftWidget = leftControl; if (label != null && label.length() != 0) { leftWidget = createLabelWidget(parent, label, leftControl, topControl); } FormData data = createFormData(leftWidget, topControl, null, null, true, true, lowermost, rightmost); spinner.setLayoutData(data); return spinner; } protected Text createText(Composite parent, String label, Control leftWidget, Control topWidget, String initialText) { return createText(parent, label, leftWidget, topWidget, initialText, true, true, false, true); } protected Text createText(Composite parent, String label, Control leftControl, Control topControl, String initialText, boolean defaultIsTop, boolean defaultIsLeft, boolean lowermost, boolean rightmost) { Text text = getWidgetFactory().createText(parent, initialText, SWT.BORDER); Control leftWidget = leftControl; if (label != null && label.length() != 0) { leftWidget = createLabelWidget(parent, label, leftControl, topControl); } FormData data = createFormData(leftWidget, topControl, null, null, defaultIsLeft, defaultIsTop, lowermost, rightmost); text.setLayoutData(data); return text; } protected Text createExtendedText(Composite parent, String label, Control leftControl, Control topControl, String initialText, boolean defaultIsTop, boolean defaultIsLeft, boolean lowermost, boolean rightmost) { Control leftWidget = leftControl; if (label != null && label.length() != 0) { leftWidget = createLabelWidget(parent, label, leftControl, topControl); } Text text = getWidgetFactory().createText(parent, initialText, SWT.BORDER | SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL | SWT.WRAP); FormData data = createFormData(leftWidget, topControl, null, null, true, true, true, true); text.setLayoutData(data); return text; } protected CLabel createLabelWidget(Composite parent, String labelText, Control leftWidget) { return createLabelWidget(parent, labelText, leftWidget, null); } protected CLabel createLabelWidget(Composite parent, String labelText, Control leftWidget, Control topWidget) { CLabel label = getWidgetFactory().createCLabel(parent, labelText); FormData data = createFormData(leftWidget, topWidget, null, false); label.setLayoutData(data); return label; } private DateTime createDate(Composite parent, String label, Control leftControl, Control topControl, boolean defaultIsTop, boolean defaultIsLeft, boolean lowermost, boolean rightmost) { DateTime date = new DateTime(parent, SWT.DATE); date.setBackground(parent.getBackground()); date.setForeground(parent.getForeground()); getWidgetFactory().adapt(date); Control leftWidget = leftControl; if (label != null && label.length() != 0) { leftWidget = createLabelWidget(parent, label, leftControl, topControl); } FormData data = createFormData(leftWidget, topControl, null, null, defaultIsLeft, defaultIsTop, lowermost, rightmost); date.setLayoutData(data); return date; } private DateTime createTime(Composite parent, String label, Control leftControl, Control topControl, boolean defaultIsTop, boolean defaultIsLeft, boolean lowermost, boolean rightmost) { DateTime time = new DateTime(parent, SWT.TIME); time.setBackground(parent.getBackground()); time.setForeground(parent.getForeground()); getWidgetFactory().adapt(time); Control leftWidget = leftControl; if (label != null && label.length() != 0) { leftWidget = createLabelWidget(parent, label, leftControl, topControl); } FormData data = createFormData(leftWidget, topControl, null, null, defaultIsLeft, defaultIsTop, lowermost, rightmost); time.setLayoutData(data); return time; } private CCombo createCombo(Composite parent, String label, Control leftControl, Control topControl, boolean defaultIsTop, boolean defaultIsLeft, boolean lowermost, boolean rightmost) { CCombo combo = getWidgetFactory().createCCombo(parent, SWT.NONE); Control leftWidget = leftControl; if (label != null && label.length() != 0) { leftWidget = createLabelWidget(parent, label, leftControl, topControl); } FormData data = createFormData(leftWidget, topControl, null, null, defaultIsLeft, defaultIsTop, lowermost, rightmost); combo.setLayoutData(data); return combo; } // these ones are used in model customization example templates! public Composite createMainWidget(Composite parent) { return createFlatFormComposite(parent, 0, true); } public Composite createCompositeWidget(Composite parent, String label, Control leftControl, Control topControl, Control rightControl, Control bottomControl, boolean defaultIsLeft, boolean defaultIsTop, boolean lowermost, boolean rightmost) { return createFlatFormComposite(parent, leftControl, topControl, rightControl, bottomControl, defaultIsLeft, defaultIsTop, lowermost, rightmost, SWT.DEFAULT, false); } public ExpandableComposite createExpandableComposite(Composite parent, String label, Control leftControl, Control topControl, Control rightControl, Control bottomControl, boolean defaultIsLeft, boolean defaultIsTop, boolean lowermost, boolean rightmost) { return createExpandableComposite(parent, label, leftControl, topControl, lowermost, rightmost); } public Group createGroupWidget(Composite parent, String label, Control leftControl, Control topControl, Control rightControl, Control bottomControl, boolean defaultIsLeft, boolean defaultIsTop, boolean lowermost, boolean rightmost) { Group group = createGroup(parent, label, leftControl, topControl, defaultIsTop, defaultIsLeft, lowermost, rightmost, false); return group; } public Button createRadioButton(Composite parent, String label, Control leftControl, Control topControl, Control rightControl, Control bottomControl, boolean defaultIsLeft, boolean defaultIsTop, boolean lowermost, boolean rightmost) { return createRadio(parent, null, label, leftControl, SWT.DEFAULT, topControl, SWT.DEFAULT, rightControl, SWT.DEFAULT, defaultIsLeft, defaultIsTop, lowermost, rightmost); } public Button createCheckboxButton(Composite parent, String label, Control leftControl, Control topControl, Control rightControl, Control bottomControl, boolean defaultIsLeft, boolean defaultIsTop, boolean lowermost, boolean rightmost) { return createCheckbox(parent, label, topControl, leftControl, defaultIsTop, defaultIsLeft, lowermost, SWT.DEFAULT); } public Spinner createSpinnerWidget(Composite parent, String label, int min, int max, int inc, int pageInc, Control leftControl, Control topControl, Control rightControl, Control bottomControl, boolean defaultIsLeft, boolean defaultIsTop, boolean lowermost, boolean rightmost) { return createSpinnerWidget(parent, label, leftControl, topControl, lowermost, rightmost, false, min, max, inc, pageInc); } public Text createTextWidget(Composite parent, String label, Control leftControl, Control topControl, Control rightControl, Control bottomControl, boolean defaultIsLeft, boolean defaultIsTop, boolean lowermost, boolean rightmost) { return createText(parent, label, leftControl, topControl, EMPTY_STRING, defaultIsTop, defaultIsLeft, lowermost, rightmost); } public Text createExtendedTextWidget(Composite parent, String label, Control leftControl, Control topControl, Control rightControl, Control bottomControl, boolean defaultIsLeft, boolean defaultIsTop, boolean lowermost, boolean rightmost) { Text extendedText = createExtendedText(parent, label, leftControl, topControl, EMPTY_STRING, defaultIsTop, defaultIsLeft, lowermost, rightmost); return extendedText; } public CLabel createLabelWidget(Composite parent, String label, Control leftControl, Control topControl, Control rightControl, Control bottomControl, boolean defaultIsLeft, boolean defaultIsTop, boolean lowermost, boolean rightmost) { return createLabelWidget(parent, label, leftControl, topControl); } public DateTime createDateWidget(Composite parent, String label, Control leftControl, Control topControl, Control rightControl, Control bottomControl, boolean defaultIsLeft, boolean defaultIsTop, boolean lowermost, boolean rightmost) { return createDate(parent, label, leftControl, topControl, defaultIsTop, defaultIsLeft, lowermost, rightmost); } public DateTime createTimeWidget(Composite parent, String label, Control leftControl, Control topControl, Control rightControl, Control bottomControl, boolean defaultIsLeft, boolean defaultIsTop, boolean lowermost, boolean rightmost) { return createTime(parent, label, leftControl, topControl, defaultIsTop, defaultIsLeft, lowermost, rightmost); } public CCombo createComboBox(Composite parent, String label, Control leftControl, Control topControl, Control rightControl, Control bottomControl, boolean defaultIsLeft, boolean defaultIsTop, boolean lowermost, boolean rightmost) { return createCombo(parent, label, leftControl, topControl, defaultIsTop, defaultIsLeft, lowermost, rightmost); } }