Composite

最後編輯：2016-04-15 建立：2016-04-15 歷史紀錄

ERIC Y import java.awt.Graphics;
import java.awt.Point;
import java.util.*;
public abstract class DiagramElement {
String name;
Point loc;
public DiagramElement(){}
public abstract void draw(Graphics g);
public abstract boolean intersect(Point p);
public void add(DiagramElement e){}
public DiagramElement getElement(int de){
return null;
}
public void remove(DiagramElement e){}
}
public class State extends DiagramElement{
int width;
int height;
public State(){}
@Override
public void draw(Graphics g) {
System.out.println("Draw state"); //To change body of generated methods, choose Tools | Templates.
}
@Override
public boolean intersect(Point p) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
}
public class StateDiagram extends DiagramElement{
private ArrayList<DiagramElement> des = new ArrayList<DiagramElement>();
public StateDiagram(){}
public void add(DiagramElement e){
des.add(e);
}
public DiagramElement getElement(int diagramElementIndex){
System.out.println("----- get element into StateDiagram1 ----- ");
return des.get(diagramElementIndex);
//用index取出任意在State diagram底下的element
}
@Override
public void draw(Graphics g) {
Iterator<DiagramElement> iterator = des.iterator();
while(iterator.hasNext()){
iterator.next().draw(g);
}
}
@Override
public boolean intersect(Point p) {
. return true;
}
public ArrayList<DiagramElement> getChild(){
return this.des;
}
public void remove(DiagramElement e){
des.remove(e);
}
}
public class Transition extends DiagramElement{
Point dest;
public Transition(){}
@Override
public void draw(Graphics g) {
System.out.println("Draw transition"); //To change body of generated methods, choose Tools | Templates.
}
@Override
public boolean intersect(Point p) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
}