47 lines
1.1 KiB
Java
47 lines
1.1 KiB
Java
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package linda.whiteboard;
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import java.util.*;
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public class Command implements java.io.Serializable {
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enum Action { DRAW, ERASEALL, ROTATE, LOCK, UNLOCK };
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public Action action;
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public ColoredShape shape; // only if action = DRAW
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public int angle; // in degrees; only if action = ROTATE
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private Command() {}
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public static Command newCommandLock() {
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Command c = new Command();
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c.action = Action.LOCK;
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return c;
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}
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public static Command newCommandUnlock() {
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Command c = new Command();
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c.action = Action.UNLOCK;
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return c;
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}
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public static Command newCommandEraseAll() {
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Command c = new Command();
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c.action = Action.ERASEALL;
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return c;
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}
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public static Command newCommandDraw(ColoredShape rc) {
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Command c = new Command();
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c.action = Action.DRAW;
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c.shape = rc;
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return c;
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}
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public static Command newCommandRotateAll(int angle) {
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Command c = new Command();
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c.action = Action.ROTATE;
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c.angle = angle;
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return c;
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}
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}
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