rushmore.java

来自「struts框架的jsf组件的核心实用例子集合」· Java 代码 · 共 44 行

package com.corejsf;

import java.awt.Point;
import java.awt.Rectangle;
import java.util.Map;
import javax.faces.context.FacesContext;
import javax.faces.event.ActionEvent;

public class Rushmore {
   private String outcome = null;
   private Rectangle washingtonRect = new Rectangle(70, 30, 40, 40);
   private Rectangle jeffersonRect = new Rectangle(115, 45, 40, 40);
   private Rectangle rooseveltRect = new Rectangle(135, 65, 40, 40);
   private Rectangle lincolnRect = new Rectangle(175, 62, 40, 40);

   public void listen(ActionEvent e) {
      FacesContext context = FacesContext.getCurrentInstance();
      String clientId = e.getComponent().getClientId(context);
      Map requestParams = context.getExternalContext().getRequestParameterMap();

      int x = new Integer((String) requestParams.get(clientId + ".x"))
            .intValue();
      int y = new Integer((String) requestParams.get(clientId + ".y"))
            .intValue();

      outcome = null;

      if (washingtonRect.contains(new Point(x, y)))
         outcome = "washington";

      if (jeffersonRect.contains(new Point(x, y)))
         outcome = "jefferson";

      if (rooseveltRect.contains(new Point(x, y)))
         outcome = "roosevelt";

      if (lincolnRect.contains(new Point(x, y)))
         outcome = "lincoln";
   }

   public String act() {
      return outcome;
   }
}