글쓴이 :이정훈 1998년 8월 21일 22:26:59
java beans 을 공부하다 실행이 잘 되지 않아 이렇게 글을 올립니다.
혹시 아시는 분은 도움을 좀 부탁드립니다.
htm 문서는 아래와 같습니다.
<html> <head> <title>Three way button applet demo</title> </head> <body> <h1>Three way button applet demo</h1> <hr> <applet code="BThreeWayButton.class" width=200 height=80> <param name="caption" value="집으로 갑니다!"> <param name="tiptext" value="또 집으로 이동합니다..."> <param name="audio" value="0.au"> <param name="dest" value="http://saejong.pufs.ac.kr"> </applet> <applet code="BThreeWayButton.class" width=200 height=80> <param name="caption" value="Sun사로 갑니다!"> <param name="tiptext" value="Sun사로 이동합니다..."> <param name="audio" value="0.au"> <param name="dest" value="http://www.sun.com"> </applet> <applet code="BThreeWayButton.class" width=200 height=80> <param name="caption" value="Go AltaVista!"> <param name="tiptext" value="알타비스나로 이동합니다..."> <param name="audio" value="0.au"> <param name="dest" value="http://www.altavista.com"> </applet> <applet code="BThreeWayButton.class" width=200 height=80> <param name="caption" value="자바 홈페이지로..."> <param name="tiptext" value="자바 홈페이지로 이동합니다..."> <param name="audio" value="0.au"> <param name="dest" value="http://www.javasoft.com"> </applet> </body> </html>
두개의 자바소스 파일은 아래와 같습니다.
//BThreeWayButtonBeanInfo.java
import java.beans.*;
import java.awt.Image;
public class BThreeWayButtonBeanInfo extends SimpleBeanInfo {
private final static Class beanClass = BThreeWayButton.class;
public BeanDescriptor getBeanDescriptor() {
BeanDescriptor bd = new BeanDescriptor(beanClass);
bd.setDisplayName("Three Way Button");
return bd;
}
public Image getIcon(int iconKind){
if(iconKind == BeanInfo.ICON_COLOR_16x16){
Image img = loadImage("ButtonIcon16.gif");
return img;
}
if(iconKind == BeanInfo.ICON_COLOR_32x32) {
Image img = loadImage("ButtonIcon32.gif");
return img;
}
return null;
}
}
//BThreeWayButton.java
import java.applet.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import java.net.URL;
import java.net.MalformedURLException;
public class BThreeWayButton extends Applet implements MouseListener
{
private Image img_a = null;
private Image img_b = null;
private String caption;
private String tiptext;
private String dest;
private String audio;
private boolean b_border = true;
private boolean b_active = false;
private boolean b_notext = false;
public void setNotext(boolean b)
{
b_notext = b;
repaint();
}
public boolean getNotext()
{
return b_notext;
}
public void setBorder(boolean b)
{
b_border = b;
repaint();
}
public boolean getBorder()
{
return b_notext;
}
public void setDisplay(String cap)
{
caption = cap;
b_notext = false;
repaint();
}
public String getDisplay()
{
return caption;
}
public void init()
{
addMouseListener(this);
String param;
param = getParameter("caption");
if(param == null)
{
caption = "Hello?";
}
else
caption = param;
param = getParameter("active-image");
if(param == null)
img_a = getImage(getDocumentBase(), "img_a.gif");
else
img_a = getImage(getDocumentBase(), param);
param = getParameter("grayed-image");
if(param == null)
img_b = getImage(getDocumentBase(), "img_b.gif");
else
img_b = getImage(getDocumentBase(), param);
param = getParameter("tiptext");
tiptext = param;
param = getParameter("dest");
dest = param;
param = getParameter("border");
if(param == null)
b_border = true;
else
b_border = param.equals("yes") ? true : false;
param = getParameter("audio");
audio = param;
}
public void start()
{
}
public void run()
{
}
public void stop()
{
}
public void paint(Graphics g)
{
drawBorder(g, true);
drawImage(g);
}
public void drawCaption(Graphics g, Dimension di)
{
if(b_notext) return;
Dimension dc = getSize();
FontMetrics fm = g.getFontMetrics();
int fw = fm.stringWidth(caption);
int fh = fm.getMaxAscent() - fm.getMaxDescent();
int xpos = 10 + di.width + 10;
int ypos = (dc.height + fm.getMaxAscent() - fm.getMaxDescent()) / 2;
g.setFont(new Font("굴림", Font.PLAIN, 14));
Color oldColor = g.getColor();
if(b_active) {
g.setColor(Color.black); //mytest
g.drawString(caption, xpos + 1, ypos + 1);
g.setColor(Color.white);
g.drawString(caption, xpos, ypos);
}
else {
g.setColor(Color.gray);
g.drawString(caption, xpos + 1, ypos + 1); //mytest
g.setColor(Color.gray);
g.drawString(caption, xpos, ypos);
}
g.setColor(oldColor);
}
public void drawImage(Graphics g)
{
Dimension di;
Dimension dc = getSize();
if(b_active == true) {
di = new Dimension(img_a.getWidth(this), img_a.getHeight(this));
if(b_notext == true)
g.drawImage(img_a, dc.width/2 - di.width/2, dc.height/2 - di.height/2, this);
else
g.drawImage(img_a, 10, dc.height/2 - di.height/2, this);
}
else {
di = new Dimension(img_b.getWidth(this), img_b.getHeight(this));
if(b_notext == true)
g.drawImage(img_b, dc.width/2 - di.width/2, dc.height/2 - di.height/2, this);
else
g.drawImage(img_b, 10, dc.height/2 - di.height/2, this);
}
drawCaption(g, di);
}
public void drawBorder(Graphics g, boolean up)
{
if(b_border == false) return;
Dimension d = getSize();
int w = d.width - 1;
int h = d.height - 1;
Color oldColor = g.getColor();
if(b_active) {
if(up)
g.setColor(Color.white);
else
g.setColor(Color.gray);
g.drawLine(0, 0, w, 0);
g.drawLine(0, 1, w - 1, 1);
g.drawLine(0, 0, 0, h - 1);
g.drawLine(1, 0, 1, h - 2);
if(up)
g.setColor(Color.gray);
else
g.setColor(Color.white);
g.drawLine(0, h, w, h);
g.drawLine(1, h - 1, w, h - 1);
g.drawLine(w, 0, w, h);
g.drawLine(w - 1, 1, w - 1, h);
}
else {
g.setColor(Color.lightGray);
g.drawLine(0, 0, w, 0);
g.drawLine(0, 1, w - 1, 1);
g.drawLine(0, 0, 0, h - 1);
g.drawLine(1, 0, 1, h - 2);
g.drawLine(0, h, w, h);
g.drawLine(1, h - 1, w, h - 1);
g.drawLine(w, 0, w, h);
g.drawLine(w - 1, 1, w - 1, h);
}
g.setColor(oldColor);
}
///////////////////////////////////////////////////////////////////////////
public void mousePressed(MouseEvent evt)
{
Graphics g = getGraphics();
drawBorder(g, false);
}
public void mouseReleased(MouseEvent evt)
{
if(!b_active) return;
Graphics g = getGraphics();
drawBorder(g, true);
}
public void mouseEntered(MouseEvent evt)
{
b_active = true;
Graphics g = getGraphics();
drawBorder(g, true);
drawImage(g);
AppletContext ac = getAppletContext();
if(tiptext != null) ac.showStatus(tiptext);
}
public void mouseExited(MouseEvent evt)
{
b_active = false;
Graphics g = getGraphics();
drawBorder(g, false);
drawImage(g);
AppletContext ac = getAppletContext();
if(tiptext != null) ac.showStatus("");
}
public void mouseClicked(MouseEvent evt)
{
if(audio != null) {
AudioClip oc = getAudioClip(getDocumentBase(), audio);
oc.play();
}
AppletContext ac = getAppletContext();
if(dest != null) {
try {
URL url = new URL(dest);
ac.showDocument(url);
}
catch(MalformedURLException e) {
System.out.println("Malformed URL: " + dest);
return;
}
}
}
public void mouseDragged(MouseEvent evt)
{
}
public void mouseMoved(MouseEvent evt)
{
}
}
아시는 분들의 고견을 기다리며....
수고들 하세요.