Examples of java.awt.event.MouseWheelListener

java.awt.event.MouseWheelListener
The listener interface for receiving mouse wheel events on a component. (For clicks and other mouse events, use the MouseListener. For mouse movement and drags, use the MouseMotionListener.)
The class that is interested in processing a mouse wheel event implements this interface (and all the methods it contains).
The listener object created from that class is then registered with a component using the component's addMouseWheelListener method. A mouse wheel event is generated when the mouse wheel is rotated. When a mouse wheel event occurs, that object's mouseWheelMoved method is invoked.
For information on how mouse wheel events are dispatched, see the class description for {@link MouseWheelEvent}. @author Brent Christian @see MouseWheelEvent @since 1.4


    private void registerMouseListeners() {
        DragInsensitiveMouseClickListener listener = new DragInsensitiveMouseClickListener(new GridPanelMouseListener());
        addMouseListener(listener);
        addMouseMotionListener(listener);
        addMouseWheelListener(new MouseWheelListener() {
            @Override
            public void mouseWheelMoved(MouseWheelEvent e) {
                zoom(-e.getWheelRotation());
            }
        });

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                    }
                }
            }
        });


        graph.addMouseWheelListener(new MouseWheelListener() {


            public void mouseWheelMoved(MouseWheelEvent e) {
                graph.setScale(graph.getScale()
                        / Math.pow(ZOOM_FACTOR, e.getWheelRotation()));
            }

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        assertTrue(str.indexOf("wheelScrollingEnabled=true") > 0);
    }


    public final void testProcessMouseWheelEvent() {
        eventProcessed = false;
        scrollPane.addMouseWheelListener(new MouseWheelListener() {


            public void mouseWheelMoved(MouseWheelEvent arg0) {
                eventProcessed = true;
            }

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        Point p2 = b.getLocationOnScreen();
        int scroll = -15;
        movePointer(p1, p2);
        f.toFront();
        robot.delay(100);
        b.addMouseWheelListener(new MouseWheelListener() {


            public void mouseWheelMoved(MouseWheelEvent mwe) {
                mouseEvent = mwe;
            }
        });

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        assertTrue(str.indexOf("wheelScrollingEnabled=true") > 0);
    }


    public final void testProcessMouseWheelEvent() {
        eventProcessed = false;
        scrollPane.addMouseWheelListener(new MouseWheelListener() {


            public void mouseWheelMoved(MouseWheelEvent arg0) {
                eventProcessed = true;
            }

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        };


        parent.zoomIn.addActionListener(zoom);
        parent.zoomOut.addActionListener(zoom);


        addMouseWheelListener(new MouseWheelListener() {


            public void mouseWheelMoved(MouseWheelEvent mwe) {
                int clics = mwe.getWheelRotation();
                if (clics == 0) {
                    return;

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  TabbedPane(MainWindow window) {
    mainWindow = window;


    setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);


    addMouseWheelListener(new MouseWheelListener() {
      public void mouseWheelMoved(MouseWheelEvent e) {
        int direction = e.getWheelRotation();
        int index = getSelectedIndex();
        int maxIndex = getTabCount() - 1;
        if ((index == 0 && direction < 0)

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          SwingFactory.setIcon(item, "icons/redo.png");
      }
    }
    
    // mouse listener to resize font
    area.addMouseWheelListener(new MouseWheelListener() {
      
      @Override
      public void mouseWheelMoved(MouseWheelEvent e) {
        
        Font font = area.getFont();

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                }


                dragstart = e.getPoint();
            }
        });
        component.addMouseWheelListener(new MouseWheelListener() {


            public void mouseWheelMoved(MouseWheelEvent e) {
                z += e.getWheelRotation()*5;
            }

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        // now add our top-level panel
        getContentPane().add(top, BorderLayout.CENTER);


        // observe mouse-wheel events in the scene view panel to allow
        // scrolling the wheel to select the tile to be placed
        _svpanel.addMouseWheelListener(new MouseWheelListener() {
            public void mouseWheelMoved (MouseWheelEvent e) {
                if (e.getWheelRotation() < 0) {
                    _tpanel.selectPreviousTile();
                } else {
                    _tpanel.selectNextTile();

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