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SciJava Common is a shared library for SciJava software. It provides a plugin framework, with an extensible mechanism for service discovery, backed by its own annotation processor, so that plugins can be loaded dynamically. It is used by both ImageJ and SCIFIO.

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package org.scijava.ui.dnd.event;

import org.scijava.display.Display;
import org.scijava.display.event.input.InputEvent;
import org.scijava.input.InputModifiers;
import org.scijava.ui.dnd.DragAndDropData;

/**
 * An event indicating drag-and-drop activity in a display.
 * 
 * @author Curtis Rueden
 */
public abstract class DragAndDropEvent extends InputEvent {

	private final DragAndDropData data;

	public DragAndDropEvent(final Display display) {
		this(display, null);
	}

	public DragAndDropEvent(final Display display, final DragAndDropData data)
	{
		this(display, null, -1, -1, data);
	}

	public DragAndDropEvent(final Display display,
		final InputModifiers modifiers, final int x, final int y,
		final DragAndDropData data)
	{
		super(display, modifiers, x, y);
		this.data = data;
	}

	// -- DragAndDropEvent methods --

	/** Gets the drag-and-drop data. */
	public DragAndDropData getData() {
		return data;
	}

	// -- Object methods --

	@Override
	public String toString() {
		return super.toString() + "\n\tdata = " + data;
	}

}