| /******************************************************************************* |
| * Copyright (c) 2000, 2008 IBM 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.mylyn.internal.tasks.ui; |
| |
| import org.eclipse.jface.dialogs.Dialog; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.SelectionAdapter; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Combo; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.Shell; |
| |
| /** |
| * General purpose dialog for selecting an item from a combo box. |
| * |
| * @author This was (essentially) copied from Eclipse's internal implementation by Wesley Coelho |
| */ |
| public class ComboSelectionDialog extends Dialog { |
| |
| private String fSelection = null; |
| |
| private final String fShellTitle; |
| |
| private final String fLabelText; |
| |
| private final String[] fAllowedStrings; |
| |
| private final int fInitialSelectionIndex; |
| |
| private int fSelectedIndex = -1; |
| |
| public ComboSelectionDialog(Shell parentShell, String shellTitle, String labelText, String[] comboStrings, |
| int initialSelectionIndex) { |
| super(parentShell); |
| fShellTitle = shellTitle; |
| fLabelText = labelText; |
| fAllowedStrings = comboStrings; |
| fInitialSelectionIndex = initialSelectionIndex; |
| } |
| |
| public String getSelectedString() { |
| return fSelection; |
| } |
| |
| /* |
| * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite) |
| */ |
| @Override |
| protected Control createDialogArea(Composite parent) { |
| getShell().setText(fShellTitle); |
| |
| Composite composite = (Composite) super.createDialogArea(parent); |
| Composite innerComposite = new Composite(composite, SWT.NONE); |
| innerComposite.setLayoutData(new GridData()); |
| GridLayout gl = new GridLayout(); |
| gl.numColumns = 2; |
| innerComposite.setLayout(gl); |
| |
| Label label = new Label(innerComposite, SWT.NONE); |
| label.setText(fLabelText); |
| label.setLayoutData(new GridData()); |
| |
| final Combo combo = new Combo(innerComposite, SWT.READ_ONLY); |
| for (String allowedString : fAllowedStrings) { |
| combo.add(allowedString); |
| } |
| combo.select(fInitialSelectionIndex); |
| fSelection = combo.getItem(combo.getSelectionIndex()); |
| GridData gd = new GridData(); |
| gd.widthHint = convertWidthInCharsToPixels(getMaxStringLength()); |
| combo.setLayoutData(gd); |
| combo.addSelectionListener(new SelectionAdapter() { |
| @Override |
| public void widgetSelected(SelectionEvent e) { |
| fSelection = combo.getItem(combo.getSelectionIndex()); |
| fSelectedIndex = combo.getSelectionIndex(); |
| } |
| }); |
| applyDialogFont(composite); |
| return composite; |
| } |
| |
| /** |
| * Returns the array index of the selected string or -1 if no string was selected. |
| */ |
| public int getSelectedIndex() { |
| return fSelectedIndex; |
| } |
| |
| private int getMaxStringLength() { |
| int max = 0; |
| for (String allowedString : fAllowedStrings) { |
| max = Math.max(max, allowedString.length()); |
| } |
| return max; |
| } |
| } |