1 files changed, 114 insertions, 0 deletions
diff --git a/org.eclipse.mylyn.tasks.ui/src/org/eclipse/mylyn/internal/tasks/ui/ui/ComboSelectionDialog.java b/org.eclipse.mylyn.tasks.ui/src/org/eclipse/mylyn/internal/tasks/ui/ui/ComboSelectionDialog.java
new file mode 100644
index 000000000..c429b3696
--- /dev/null
+++ b/org.eclipse.mylyn.tasks.ui/src/org/eclipse/mylyn/internal/tasks/ui/ui/ComboSelectionDialog.java
@@ -0,0 +1,114 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 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.mylar.internal.tasks.ui.ui;
+
+import org.eclipse.jface.dialogs.Dialog;
+import org.eclipse.jface.util.Assert;
+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);
+		Assert.isNotNull(shellTitle);
+		Assert.isNotNull(labelText);
+		Assert.isTrue(comboStrings.length > 0);
+		Assert.isTrue(initialSelectionIndex >= 0 && initialSelectionIndex < comboStrings.length);
+		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)
+	 */
+	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 (int i = 0; i < fAllowedStrings.length; i++) {
+			combo.add(fAllowedStrings[i]);
+		}
+		combo.select(fInitialSelectionIndex);
+		fSelection = combo.getItem(combo.getSelectionIndex());
+		GridData gd = new GridData();
+		gd.widthHint = convertWidthInCharsToPixels(getMaxStringLength());
+		combo.setLayoutData(gd);
+		combo.addSelectionListener(new SelectionAdapter() {
+			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 (int i = 0; i < fAllowedStrings.length; i++) {
+			max = Math.max(max, fAllowedStrings[i].length());
+		}
+		return max;
+	}
+}