PPT Slide

/* class DrawCanvas (cont’d) . . . */

public Color getColor() {

return color;

} // getColor

public void setColor(Color color) {

this.color = color;

} // setColor

public void update(Graphics g) {

paint(g);

} // update

public void paint (Graphics g) {

if (getClear()) {

g.setColor(Color.white);

g.fillRect(0,0,getSize().width,

getSize().height);

setClear(false);

} // if

if (getDrawing()) {

g.setColor(getColor());

g.drawLine(oldX, oldY, mouseX, mouseY);

} // if

} // paint

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