Example usage for java.awt.dnd DragSource isDragImageSupported

Introduction

In this page you can find the example usage for java.awt.dnd DragSource isDragImageSupported.

Prototype

public static boolean isDragImageSupported() 

Source Link

Document

Reports whether or not drag Image support is available on the underlying platform.

Usage

From source file:TransferableScribblePane.java

public TransferableScribblePane() {
    setPreferredSize(new Dimension(450, 200)); // We need a default size
    setBorder(normalBorder); // and a border.
    lines = new ArrayList(); // Start with an empty list of lines

    // Register interest in mouse button and mouse motion events.
    enableEvents(AWTEvent.MOUSE_EVENT_MASK | AWTEvent.MOUSE_MOTION_EVENT_MASK);

    // Enable drag-and-drop by specifying a listener that will be
    // notified when a drag begins. dragGestureListener is defined later.
    DragSource dragSource = DragSource.getDefaultDragSource();
    dragSource.createDefaultDragGestureRecognizer(this, DnDConstants.ACTION_COPY_OR_MOVE, dragGestureListener);

    // Enable drops on this component by registering a listener to
    // be notified when something is dragged or dropped over us.
    this.setDropTarget(new DropTarget(this, dropTargetListener));

    // Check whether the system allows us to drag an image of the line
    canDragImage = dragSource.isDragImageSupported();
}

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From source file:VASSAL.build.module.GlobalOptions.java

public void addTo(Buildable parent) {
    instance = this;

    final GameModule gm = GameModule.getGameModule();
    final Prefs prefs = gm.getPrefs();

    // should this moudule use a combined main window?
    final BooleanConfigurer combConf = new BooleanConfigurer(SINGLE_WINDOW,
            Resources.getString("GlobalOptions.use_combined"), //$NON-NLS-1$
            Boolean.TRUE);/*from   ww w .j av  a 2 s.c o  m*/
    prefs.addOption(combConf);
    useSingleWindow = !Boolean.FALSE.equals(combConf.getValue());

    // the initial heap size for this module
    final IntConfigurer initHeapConf = new IntConfigurer(INITIAL_HEAP,
            Resources.getString("GlobalOptions.initial_heap"), //$NON-NLS-1$
            Integer.valueOf(256));
    prefs.addOption(initHeapConf);

    // the maximum heap size for this module
    final IntConfigurer maxHeapConf = new IntConfigurer(MAXIMUM_HEAP,
            Resources.getString("GlobalOptions.maximum_heap"), //$NON-NLS-1$
            Integer.valueOf(512));
    prefs.addOption(maxHeapConf);

    // Bug 10295: Sometimes, for unknown reasons, the native drag handler
    // fails to draw images properly on Windows. This lets the user select
    // the drag handler to use.
    if (SystemUtils.IS_OS_WINDOWS) {
        final BooleanConfigurer bug10295Conf = new BooleanConfigurer(BUG_10295,
                Resources.getString("GlobalOptions.bug10295"), Boolean.FALSE);

        if (Boolean.TRUE.equals(bug10295Conf.getValue()) && !(PieceMover.AbstractDragHandler
                .getTheDragHandler() instanceof PieceMover.DragHandlerNoImage)) {
            PieceMover.AbstractDragHandler.setTheDragHandler(new PieceMover.DragHandlerNoImage());
        }

        bug10295Conf.addPropertyChangeListener(new PropertyChangeListener() {
            public void propertyChange(PropertyChangeEvent e) {
                PieceMover.AbstractDragHandler.setTheDragHandler(
                        (Boolean.TRUE.equals(e.getNewValue()) || !DragSource.isDragImageSupported())
                                ? new PieceMover.DragHandlerNoImage()
                                : new PieceMover.DragHandler());
            }
        });

        prefs.addOption(bug10295Conf);
    }

    validator = new SingleChildInstance(gm, getClass());
}

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