AquaScrollPaneUI.java

/*
 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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package com.apple.laf;

import java.awt.event.*;

import javax.swing.*;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.basic.BasicScrollPaneUI;

public class AquaScrollPaneUI extends javax.swing.plaf.basic.BasicScrollPaneUI {
    public static ComponentUI createUI(final JComponent x) {
        return new AquaScrollPaneUI();
    }

    protected MouseWheelListener createMouseWheelListener() {
        return new XYMouseWheelHandler();
    }

    protected class XYMouseWheelHandler extends BasicScrollPaneUI.MouseWheelHandler {
        public void mouseWheelMoved(final MouseWheelEvent e) {
            super.mouseWheelMoved(e);
            // Consume the event even when the scrollBar is invisible
            // see #7124320
            e.consume();
        }
    }
}