/*
 * Copyright (c) 1995, 1996 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Permission to use, copy, modify, and distribute this software
 * and its documentation for NON-COMMERCIAL purposes and without
 * fee is hereby granted provided that this copyright notice
 * appears in all copies. Please refer to the file "copyright.html"
 * for further important copyright and licensing information.
 *
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
 * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
 * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
 */
import java.awt.*;
import java.applet.Applet;

public class ListDemo extends Applet {
    TextArea output;
    List spanish, italian; 

    public void init() {

	//Build first list, which allows multiple selections.
	spanish = new List(4, true); //prefer 4 items visible
	spanish.addItem("uno");
	spanish.addItem("dos");
	spanish.addItem("tres");
	spanish.addItem("cuatro");
	spanish.addItem("cinco");
	spanish.addItem("seis");
	spanish.addItem("siete");

	//Build second list, which allows one selection at a time.
	italian = new List(); //Defaults to none visible, only one selectable
	italian.addItem("uno");
	italian.addItem("due");
	italian.addItem("tre");
	italian.addItem("quattro");
	italian.addItem("cinque");
	italian.addItem("sei");
	italian.addItem("sette");

	//Add lists to the Applet. 
	GridBagLayout gridBag = new GridBagLayout();
	setLayout(gridBag);

	//Can't put text area on right due to GBL bug
	//(can't span rows in any column but the first). 
	output = new TextArea(10, 40);
	output.setEditable(false);
	GridBagConstraints tc = new GridBagConstraints();
	tc.fill = GridBagConstraints.BOTH;
	tc.weightx = 1.0;
	tc.weighty = 1.0;
	tc.gridheight = 2;
	gridBag.setConstraints(output, tc);
	add(output);

	GridBagConstraints lc = new GridBagConstraints();
	lc.fill = GridBagConstraints.VERTICAL;
	lc.gridwidth = GridBagConstraints.REMAINDER; //end row
	gridBag.setConstraints(spanish, lc);
	add(spanish);
	gridBag.setConstraints(italian, lc);
	add(italian);

	validate();
    }

    public boolean handleEvent(Event e) {
	if (e.target instanceof List) {
	    List list = (List)(e.target);
	    String language = (list == spanish) ?
			      "Spanish" : "Italian";

	    switch (e.id) {
	      case Event.ACTION_EVENT:
		String string = (String)e.arg;
	        output.appendText("Action event occurred on \""
	    		      + string  + "\" in "
			      + language + ".\n");
		break;
	      case Event.LIST_SELECT:
	        int sIndex = ((Integer)e.arg).intValue();
	        output.appendText("Select event occurred on item #"
	    		      + sIndex + " (\""
	    		      + list.getItem(sIndex)  + "\") in "
			      + language + ".\n");
		break;
	      case Event.LIST_DESELECT:
	        int dIndex = ((Integer)e.arg).intValue();
	        output.appendText("Deselect event occurred on item #"
	    		      + dIndex + " (\""
	    		      + list.getItem(dIndex)  + "\") in "
			      + language + ".\n");
	    }
	}
	return super.handleEvent(e);
    }
}