java 设置字体的颜色,java设置字体颜色

最新推荐文章于 2023-05-14 22:14:40 发布

转载最新推荐文章于 2023-05-14 22:14:40 发布 · 7.7k 阅读

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#java 设置字体的颜色

本文档展示了如何使用Java创建一个简单的GUI应用程序，包括建立主框架、编辑功能（发送和接收文本）、颜色选择以及使用Socket进行实时数据传输。主要关注编辑器组件的交互和网络通信的实现。

package com.yidu.demo;

import java.awt.Color;

import java.awt.Font;

import java.awt.Image;

import java.awt.MenuItem;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.InputEvent;

import java.awt.event.KeyEvent;

import java.io.IOException;

import java.io.ObjectOutputStream;

import java.io.OutputStream;

import java.net.Socket;

import java.net.UnknownHostException;

import java.util.Enumeration;

import javax.swing.ImageIcon;

import javax.swing.JColorChooser;

import javax.swing.JEditorPane;

import javax.swing.JFrame;

import javax.swing.JMenu;

import javax.swing.JMenuBar;

import javax.swing.JMenuItem;

import javax.swing.JTextPane;

import javax.swing.KeyStroke;

import javax.swing.text.AttributeSet;

import javax.swing.text.BadLocationException;

import javax.swing.text.Document;

import javax.swing.text.Element;

import javax.swing.text.SimpleAttributeSet;

import javax.swing.text.StyleConstants;

import javax.swing.text.StyleContext;

import javax.swing.text.StyledDocument;

import javax.swing.text.StyleConstants.ColorConstants;

import javax.swing.text.StyleConstants.FontConstants;

import sun.font.FontFamily;

public class MainFrame extends JFrame {

JTextPane editorPane=new JTextPane();

Socket socket;

public MainFrame(){

JMenuBar bar=new JMenuBar();

this.setJMenuBar(bar);

JMenu menuFile=new JMenu("编辑");

bar.add(menuFile);

JMenuItem itemSend=new JMenuItem("发送");

menuFile.add(itemSend);

try {

socket=new Socket("127.0.0.1",1000);

} catch (UnknownHostException e2) {

// TODO Auto-generated catch block

e2.printStackTrace();

} catch (IOException e2) {

// TODO Auto-generated catch block

e2.printStackTrace();

}

itemSend.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e) {

try {

OutputStream os= socket.getOutputStream();

ObjectOutputStream objectOutputStream=new ObjectOutputStream(os);

objectOutputStream.writeObject(editorPane);

objectOutputStream.flush();

} catch (UnknownHostException e1) {

// TODO Auto-generated catch block

e1.printStackTrace();

} catch (IOException e1) {

// TODO Auto-generated catch block

e1.printStackTrace();

}

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});

JMenuItem itemGet=new JMenuItem("得到内容");

menuFile.add(itemGet);

itemGet.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e) {

Document document= editorPane.getDocument();

editorPane.insertIcon(new ImageIcon("MessageReading.gif"));

}

});

JMenuItem itemColor=new JMenuItem("颜色");

itemColor.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e) {

JColorChooser colorChooser=new JColorChooser();

Color color= colorChooser.showDialog(null, "字体颜色", Color.BLACK);

Document document= editorPane.getDocument();

try {

StyleContext sc = StyleContext.getDefaultStyleContext();

AttributeSet aset = sc.addAttribute(SimpleAttributeSet.EMPTY,StyleConstants.Foreground, color);

Font font=new Font("隶书",Font.BOLD,30);

aset=sc.addAttribute(aset, StyleConstants.Family, font.getFamily());

aset=sc.addAttribute(aset, StyleConstants.FontSize, 30);

int start= editorPane.getSelectionStart();

int end=editorPane.getSelectionEnd();

String str= document.getText(start,end-start);

document.remove(start, end-start);

document.insertString(start, str, aset);

} catch (BadLocationException e1) {

// TODO Auto-generated catch block

e1.printStackTrace();

}

});

menuFile.add(itemColor);

itemColor.setMnemonic('C');

//设置快捷键

itemColor.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C,InputEvent.ALT_MASK));

this.add(editorPane);

editorPane.setText("测试");

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

/**

* @param args

public static void main(String[] args) {

MainFrame mainFrame=new MainFrame();

mainFrame.setSize(400, 300);

mainFrame.setVisible(true);

}

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