메모장 (글자 굵기, 기울기, 초기화, 색, 종료창)

메인

package eventProject;

import java.awt.Color;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.awt.event.WindowListener;

import javax.swing.JButton;

import javax.swing.JColorChooser;

import javax.swing.JFrame;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JTextArea;

import javax.swing.JToggleButton;

public class EventTest extends WindowAdapter implements ActionListener{

JFrame frm = new JFrame("메모장");

JPanel p = new JPanel();

JToggleButton boldBtn = new JToggleButton("가");

JToggleButton italicBtn = new JToggleButton("가");

JToggleButton plainBtn = new JToggleButton("가");

JButton foreColor = new JButton("글자색");

JTextArea ta = new JTextArea();

public EventTest() {

p.add(boldBtn); p.add(italicBtn); p.add(plainBtn); p.add(foreColor);

frm.add(p, "North");

frm.add(ta, "Center");

frm.setSize(500, 500);

frm.setVisible(true);

//frm.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

//JFrame 자동 종료 해제

frm.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);

MyEventProdess event = new MyEventProdess(ta, boldBtn, italicBtn, plainBtn);

boldBtn.addActionListener(event);

italicBtn.addActionListener(event);

plainBtn.addActionListener(event);

foreColor.addActionListener(this);

frm.addWindowListener(this);

}

public void actionPerformed(ActionEvent ae){

String str = ae.getActionCommand();

if(str.equals("글자색")){

//컬러선택탐색시

JColorChooser cc = new JColorChooser();

//색상선택기 실행 (부모객체, 제목, 초기색상)

Color color = cc.showDialog(frm, "글자색", Color.red);

ta.setForeground(color);

}

}

//윈도우 이벤트 오버라이딩

//WindowAdapter를 상속하여 필요한 메소드만 재 오버라이딩하여 사용한다.

public void windowClosing(WindowEvent we){

int showType = JOptionPane.showConfirmDialog(frm, "종료하시겠습니까?", "확인", JOptionPane.OK_CANCEL_OPTION);

if(showType==JOptionPane.OK_OPTION){

frm.dispose();

System.exit(0);

}else if(showType==JOptionPane.CANCEL_OPTION){

}

}

public static void main(String[] args) {

new EventTest();

}

}

=====================================================================

이벤트 처리

package eventProject;

import java.awt.Font;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.image.PixelInterleavedSampleModel;

import javax.swing.JTextArea;

import javax.swing.JToggleButton;

public class MyEventProdess implements ActionListener{

JTextArea ta;

JToggleButton boldBtn, italicBtn, plainBtn;

int bold = 0, italic = 0; //Plain값은 생략

Font fnt = new Font("Serif", Font.PLAIN, 20);

public MyEventProdess() {

}

public MyEventProdess(JTextArea ta, JToggleButton boldBtn, JToggleButton italicBtn, JToggleButton plainBtn){

this.ta = ta;

this.boldBtn = boldBtn;

this.italicBtn = italicBtn;

this.plainBtn = plainBtn;

}

//오버라이딩 = public class에서 implements 하였다면 이곳에 오버라이딩을 해야 한다.

public void actionPerformed(ActionEvent ae){

//이벤트

// Font("Serif", Font.BOLD, 20);

// FontBOLD=1, Font.ITALIC=2, Font.PLAIN=0

Object obj = ae.getSource();

if(obj==boldBtn){ //진하게

if(boldBtn.isSelected()){ //선택

bold = 1;

}else{ //비선택

bold = 0;

}

}else if(obj==italicBtn){ //이텔릭

if(italicBtn.isSelected()){

italic = 2;

}else{

italic = 0;

}

}else if(obj==plainBtn){ //보통

bold = 0;

italic = 0;

boldBtn.setSelected(false);

italicBtn.setSelected(false);

}

////////

fnt = new Font("Serif", bold+italic, 20);

ta.setFont(fnt);

}

}