1 files changed, 50 insertions, 0 deletions
diff --git a/org.eclipse.mylyn.tasks.ui/src/org/eclipse/mylyn/internal/tasks/ui/editors/AttachmentColumnID.java b/org.eclipse.mylyn.tasks.ui/src/org/eclipse/mylyn/internal/tasks/ui/editors/AttachmentColumnID.java
new file mode 100644
index 000000000..003baa641
--- /dev/null
+++ b/org.eclipse.mylyn.tasks.ui/src/org/eclipse/mylyn/internal/tasks/ui/editors/AttachmentColumnID.java
@@ -0,0 +1,50 @@
+/*******************************************************************************
+ * Copyright (c) 2011 Frank Becker 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:
+ *     Frank Becker - initial API and implementation
+ *******************************************************************************/
+
+package org.eclipse.mylyn.internal.tasks.ui.editors;
+
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.jface.viewers.TableViewer;
+import org.eclipse.mylyn.internal.tasks.ui.views.TaskKeyComparator;
+import org.eclipse.mylyn.tasks.core.ITaskAttachment;
+import org.eclipse.mylyn.tasks.core.data.TaskAttribute;
+import org.eclipse.swt.SWT;
+
+public class AttachmentColumnID extends AttachmentColumnDefinition {
+	TaskKeyComparator keyComparator = new TaskKeyComparator();
+
+	public AttachmentColumnID(int index) {
+		super(index, 0, "ID", SWT.LEFT, false, SWT.NONE);
+	}
+
+	@Override
+	public String getColumnText(ITaskAttachment attachment, int columnIndex) {
+		Assert.isTrue(columnIndex == getIndex());
+		return getAttachmentId(attachment);
+	}
+
+	@Override
+	public int compare(TableViewer viewer, ITaskAttachment attachment1, ITaskAttachment attachment2, int columnIndex) {
+		Assert.isTrue(columnIndex == getIndex());
+		String key1 = getAttachmentId(attachment1);
+		String key2 = getAttachmentId(attachment2);
+		return keyComparator.compare2(key1, key2);
+	}
+
+	static String getAttachmentId(ITaskAttachment attachment) {
+		TaskAttribute attribute = attachment.getTaskAttribute();
+		if (attribute != null) {
+			return attribute.getValue();
+		}
+		return ""; //$NON-NLS-1$
+	}
+
+}