inputevent.java

linux下建立JAVA虚拟机的源码KAFFE

package java.awt.event;

import java.awt.Component;

/**
 *
 * Copyright (c) 1998
 *   Transvirtual Technologies Inc.  All rights reserved.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file.
 * @author P.C.Mehlitz
 */
public class InputEvent
  extends ComponentEvent
{
	protected int modifiers;
	protected long when;

	private static final long serialVersionUID = -2482525981698309786L;

	public static final int SHIFT_MASK = 1;
	public static final int SHIFT_DOWN_MASK = 64;
	public static final int CTRL_MASK = 2;
	public static final int CTRL_DOWN_MASK = 128;
	public static final int META_MASK = 4;
	public static final int META_DOWN_MASK = 256;
	public static final int ALT_MASK = 8;
	public static final int ALT_DOWN_MASK = 512;
	public static final int ALT_GRAPH_MASK = 32;
	public static final int ALT_GRAPH_DOWN_MASK = 8192;
	public static final int BUTTON1_MASK = 16;
	public static final int BUTTON1_DOWN_MASK = 1024;
	public static final int BUTTON2_MASK = ALT_MASK;
	public static final int BUTTON2_DOWN_MASK = 2048;
	public static final int BUTTON3_MASK = META_MASK;
	public static final int BUTTON3_DOWN_MASK = 4096;

	/* This method returns a String representation of the 
	 * modifiers.
	 */
	static String getModifiersAsString(final int modifiers) {
		/* Start with an empty string */
		String s = "";

		/* Check all the bits in the mask */
		if ((modifiers & SHIFT_MASK) != 0) {
			s += ",Shift";
		}
		if ((modifiers & SHIFT_DOWN_MASK) != 0) {
			s += ",Shift Down";
		}
		if ((modifiers & CTRL_MASK) != 0) {
			s += ",Ctrl";
		}
		if ((modifiers & CTRL_DOWN_MASK) != 0) {
			s += ",Ctrl Down";
		}
		if ((modifiers & META_MASK) != 0) {
			s += ",Meta";
		}
		if ((modifiers & META_DOWN_MASK) != 0) {
			s += ",Meta Down";
		}
		if ((modifiers & ALT_MASK) != 0) {
			s += ",Alt";
		}
		if ((modifiers & ALT_DOWN_MASK) != 0) {
			s += ",Alt Down";
		}
		if ((modifiers & ALT_GRAPH_MASK) != 0) {
			s += ",Alt Graph";
		}
		if ((modifiers & ALT_GRAPH_DOWN_MASK) != 0) {
			s += ",Alt Graph Down";
		}
		if ((modifiers & BUTTON1_MASK) != 0) {
			s += ",Button1";
		}
		if ((modifiers & BUTTON1_DOWN_MASK) != 0) {
			s += ",Button1 Down";
		}
		if ((modifiers & BUTTON2_MASK) != 0) {
			s += ",Button2";
		}
		if ((modifiers & BUTTON2_DOWN_MASK) != 0) {
			s += ",Button2 Down";
		}
		if ((modifiers & BUTTON3_MASK) != 0) {
			s += ",Button3";
		}
		if ((modifiers & BUTTON3_DOWN_MASK) != 0) {
			s += ",Button3 Down";
		}
		
		/* if s is still empty, return the empty String.
		 * Otherwise, cut off the leading ',' .
		 */
		return s.equals("") ? s : s.substring(1);
	}

InputEvent ( Component src, int evtId ) {
  super( src, evtId);
}

public int getModifiers() {
	return modifiers;
}

// TODO this is only a stub
public int getModifiersEx() {
	return 0;
}

public long getWhen() {
	return when;
}

public boolean isAltDown() {
	return ((modifiers & ALT_MASK) != 0);
}

public boolean isAltGraphDown() {
	return ((modifiers & ALT_GRAPH_MASK) != 0);
}

public boolean isConsumed() {
	return consumed;
}

public boolean isControlDown() {
	return ((modifiers & CTRL_MASK) != 0);
}

protected boolean isLiveEventFor ( Object src ) {
	return (src == source);
}

public boolean isMetaDown() {
	return ((modifiers & META_MASK) != 0);
}

public boolean isShiftDown() {
	return ((modifiers & SHIFT_MASK) != 0);
}
}