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diff --git a/src/com/delwink/icebox/swing/DoubleClickListener.java b/src/com/delwink/icebox/swing/DoubleClickListener.java
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+/*
+ * IceBox - inventory management software for restaurants
+ * Copyright (C) 2016 Delwink, LLC
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, version 3 only.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.delwink.icebox.swing;
+
+import java.awt.Toolkit;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+
+/**
+ * A mouse listener which detects double clicks.
+ * @author David McMackins II
+ */
+public abstract class DoubleClickListener extends MouseAdapter {
+ public static final int INTERVAL = (Integer) Toolkit.getDefaultToolkit().getDesktopProperty("awt.multiClickInterval");
+
+ private Long lastClick = null;
+
+ @Override
+ public final void mouseClicked(MouseEvent e) {
+ if (e.getButton() == MouseEvent.BUTTON1) {
+ if (lastClick != null && e.getWhen() - lastClick < INTERVAL) {
+ mouseDoubleClicked(e);
+ lastClick = null;
+ } else {
+ lastClick = e.getWhen();
+ }
+ }
+ }
+
+ /**
+ * Called when a double click is detected.
+ * @param e The last MouseEvent which triggered the double click.
+ */
+ public abstract void mouseDoubleClicked(MouseEvent e);
+}