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/**
* Title: Sink
* Description: An event sink for the Event Analysis Configurator
*/
package EAC;
import java.awt.*;
public class Sink extends Primitive {
// triangle dimensions
protected final int WIDTH = 20;
protected final int HEIGHT = 35;
// lower left and lower right corner points
// inherited anchor attribute holds the top point
protected Point p2,
p3;
// inputs
protected Connector input[] = new Connector[MAX_INPUTS];
protected int input_count;
// for help with dragging this Sink
Point old_anchor;
public Sink(EACPanel p) {
super(p);
} /* constructor */
public void draw() throws BoundsException {
int x[] = new int[3],
y[] = new int[3];
if (inBounds()) {
Graphics g = canvas.getGraphics();
g.drawLine(anchor.x,anchor.y,p2.x,p2.y);
g.drawLine(p2.x,p2.y,p3.x,p3.y);
g.drawLine(p3.x,p3.y,anchor.x,anchor.y);
/* Make it black */
x[0] = anchor.x;
x[1] = p2.x;
x[2] = p3.x;
y[0] = anchor.y;
y[1] = p2.y;
y[2] = p3.y;
g.fillPolygon(x,y,3);
} else
throw new BoundsException("ERROR: Attempted to place Sink partially out of bounds");
} /* draw */
public void selectedDraw() {
old_anchor = anchor;
super.selectedDraw();
} /* selectedDraw */
public void specialDraw() {
int x[] = new int[3],
y[] = new int[3];
Graphics g = canvas.getGraphics();
g.setXORMode(canvas.getBackground());
g.drawLine(anchor.x,anchor.y,p2.x,p2.y);
g.drawLine(p2.x,p2.y,p3.x,p3.y);
g.drawLine(p3.x,p3.y,anchor.x,anchor.y);
/* Make it black */
x[0] = anchor.x;
x[1] = p2.x;
x[2] = p3.x;
y[0] = anchor.y;
y[1] = p2.y;
y[2] = p3.y;
g.fillPolygon(x,y,3);
} /* specialDraw */
public void specialUndraw() {
int x[] = new int[3],
y[] = new int[3];
Graphics g = canvas.getGraphics();
g.setColor(canvas.getBackground());
g.setXORMode(canvas.getForeground());
g.drawLine(anchor.x,anchor.y,p2.x,p2.y);
g.drawLine(p2.x,p2.y,p3.x,p3.y);
g.drawLine(p3.x,p3.y,anchor.x,anchor.y);
/* Make it black */
x[0] = anchor.x;
x[1] = p2.x;
x[2] = p3.x;
y[0] = anchor.y;
y[1] = p2.y;
y[2] = p3.y;
g.fillPolygon(x,y,3);
} /* specialUndraw */
public void reconnect() {
int i;
for (i = 0; i < input_count; i++)
input[i].setEndpoint(new Point(input[i].upperRight().x + anchor.x - old_anchor.x,
input[i].upperRight().y + anchor.y - old_anchor.y));
} /* reconnect */
public boolean contains(Point p) {
if ((p.x >= p2.x) &&
(p.x <= p3.x) &&
(p.y >= anchor.y) &&
(p.y <= anchor.y + HEIGHT))
return true;
else
return false;
} /* contains */
public Point upperLeft() {
return new Point(p2.x,anchor.y);
} /* upperLeft */
public Point lowerRight() {
return p3;
} /* lowerRight */
public Point upperRight() {
return new Point(p3.x,anchor.y);
} /* upperRight */
public Point lowerLeft() {
return p2;
} /* lowerLeft */
public void setTop(Point p) {
anchor = p;
p2 = bottomLeft();
p3 = bottomRight();
} /* setTop */
public Point getTop() {
return anchor;
} /* getTop */
public boolean inBounds() {
if (canvas.contains(bottomLeft()) &&
canvas.contains(bottomRight()))
return true;
else
return false;
} /* inBounds */
private Point bottomLeft() {
return new Point(anchor.x - WIDTH, anchor.y + HEIGHT);
} /* bottomLeft */
private Point bottomRight() {
return new Point(anchor.x + WIDTH, anchor.y + HEIGHT);
} /* bottomRight */
public void write(File f) throws java.io.IOException {
f.writeInt(f.SINK);
f.writeInt(anchor.x);
f.writeInt(anchor.y);
} /* write */
public void read(File f) throws java.io.IOException {
anchor = new Point();
anchor.x = f.readInt();
anchor.y = f.readInt();
p2 = bottomLeft();
p3 = bottomRight();
} /* read */
public int addInput(Connector c) throws ConnectionException {
if (input_count == MAX_INPUTS)
throw new ConnectionException("ERROR: Maximum inputs established for sink");
else
input[input_count++] = c;
return input_count;
} /* addInput */
public int addOutput(Connector c) throws ConnectionException {
throw new ConnectionException("ERROR: Attempted to add output to sink");
} /* addOutput */
public Connector getInput(int i) throws ConnectionException {
if ((i < 0) || (i >= input_count))
throw new ConnectionException("ERROR: Bad input index for sink");
else
return input[i];
} /* getInput */
public Connector getOutput(int i) throws ConnectionException {
throw new ConnectionException("ERROR: Attempted to retrieve output from source");
} /* getOutput */
public void removeOutput(int i) throws ConnectionException {
throw new ConnectionException("ERROR: Attempted to remove output from source");
} /* removeOutput */
public void removeInput(int i) throws ConnectionException {
if ((i >= 0) && (i < input_count)) {
input[i] = input[input_count-1];
--input_count;
} else
throw new ConnectionException("ERROR: Bad input index for sink");
} /* removeInput */
public int getInputCount() throws ConnectionException {
return input_count;
} /* getInputCount */
public int getOutputCount() throws ConnectionException {
throw new ConnectionException("ERROR: Attempted to retrieve output count from sink");
} /* getOutputCount */
public void event(Source s) {
} /* event */
public void wakeup(long t) throws ConnectionException {
throw new ConnectionException("ERROR: Attempted to wake up sink");
} /* wakeup */
}
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