我正在尝试使用StyledDocument创建一个textpane，其中doc.insertString（doc.getLength（），text +“\ n”，keyWord）;它用“§”替换所有“§”的实例，然后用颜色替换一个数字（如“§1”），并且应该删除它自己的代码并使文本保持颜色。代码能够着色和删除，但问题是当我从实际doc（textpane）中删除我的局部变量的文本时没有更新，我不知道最好的方法是什么be（局部变量是“text”）。这个问题是它开始删除不是代码的东西，我认为这是由错误的索引引起的。
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Label;
import javax.swing.JFrame;
import java.awt.geom.Ellipse2D;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.io.IOException;
import java.util.Timer;
import java.util.TimerTask;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import me.woder.bot.Client;
import javax.swing.JTextPane;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.DefaultStyledDocument;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyleContext;
public class TorchGUI extends JPanel{
private static final long serialVersionUID = 1L;
public JFrame frame;
private JTextField textField;
Client c;
JTextPane chat;
JTextArea status;
final StyleContext cont = StyleContext.getDefaultStyleContext();
final AttributeSet black = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, new Color(0,0,0));
final AttributeSet blue = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, new Color(0,0,170));
final AttributeSet green = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, new Color(0,170,0));
final AttributeSet dark_aqua = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, new Color(0,170,170));
final AttributeSet dark_red = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, new Color(170,0,0));
final AttributeSet purple = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, new Color(170,0,170));
final AttributeSet orange = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, new Color(255,170,0));
final AttributeSet grey = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, new Color(170,170,170));
final AttributeSet dark_grey = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, new Color(85,85,85));
final AttributeSet indigo = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, new Color(85,85,255));
final AttributeSet bright_green = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, new Color(85,255,85));
final AttributeSet aqua = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, new Color(85,255,255));
final AttributeSet red = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, new Color(255,85,85));
final AttributeSet pink = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, new Color(255,85,255));
final AttributeSet yellow = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, new Color(255,255,85));
final AttributeSet white = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, new Color(255,255,255));
final AttributeSet reset = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, Color.black);
final AttributeSet attrBlack = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, Color.BLACK);
DefaultStyledDocument doc = new DefaultStyledDocument() {
private static final long serialVersionUID = 1L;
};
/** launch it up
*
*/public static void main(String[] args){
TorchGUI window;
window = new TorchGUI();
window.frame.setVisible(true);
window.addText("§0this should be black §1this should be blue");
}
/**
* Create the application.
*/
public TorchGUI(/*Client c*/) {
//this.c = c;
initialize();
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
frame = new JFrame("TorchBot 2.1");
frame.setBounds(100, 100, 944, 555);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
JScrollPane scrollPane = new JScrollPane();
scrollPane.setBounds(10, 11, 520, 454);
frame.getContentPane().add(scrollPane);
chat = new JTextPane(doc);
scrollPane.setViewportView(chat);
chat.setEditable(false);
textField = new JTextField();
textField.setBounds(10, 476, 447, 33);
frame.getContentPane().add(textField);
textField.setColumns(10);
status = new JTextArea();
status.setBounds(540, 250, 262, 215);
frame.getContentPane().add(status);
status.setEditable(false);
JTextArea textArea_2 = new JTextArea();
textArea_2.setBounds(540, 12, 262, 228);
frame.getContentPane().add(textArea_2);
}
public void addText(String text){
SimpleAttributeSet keyWord = new SimpleAttributeSet();
try {
int len = doc.getLength();
doc.insertString(len, text + "\n", keyWord);
formatColour(text, len);
} catch (BadLocationException e) {
e.printStackTrace();
}
}
public void formatColour(String text, int offset){
System.out.println("Text: " + text + " length + " + text.length() + " offset is: " + offset);
int before = offset;
if (before < 0) before = 0;
int after = text.length();
int wordL = before;
int wordR = before;
while (wordR < after) {
/*boolean is = true;
if (wordR == after || is) {*/
try{
System.out.println("Now looking at:" + text.substring(wordL, wordR) + " wordR is: " + wordR + " and offset is: " + offset + " worldL is: " + wordL);
if(text.substring(wordL, wordR).matches("§") && text.length() >= (wordR+1-offset)){
if (text.substring(wordL, wordR+1).contains("0")){
doc.setCharacterAttributes(wordL, text.length(), black, false);
doc.remove(wordL, 2);
}else if(text.substring(wordL, wordR+1).contains("1")){
doc.setCharacterAttributes(wordL, text.length(), blue, false);
doc.remove(wordL, 2);
}else if(text.substring(wordL, wordR+1).contains("2")){
doc.setCharacterAttributes(wordL, text.length(), green, false);
doc.remove(wordL, 2);
}else if(text.substring(wordL, wordR+1).contains("3")){
doc.setCharacterAttributes(wordL, text.length(), dark_aqua, false);
doc.remove(wordL, 2);
}else if(text.substring(wordL, wordR+1).contains("4")){
doc.setCharacterAttributes(wordL, text.length(), dark_red, false);
doc.remove(wordL, 2);
}else if(text.substring(wordL, wordR+1).contains("5")){
doc.setCharacterAttributes(wordL, text.length(), purple, false);
doc.remove(wordL, 2);
}else if(text.substring(wordL, wordR+1).contains("6")){
doc.setCharacterAttributes(wordL, text.length(), orange, false);
doc.remove(wordL, 2);
}else if(text.substring(wordL, wordR+1).contains("7")){
doc.setCharacterAttributes(wordL, text.length(), grey, false);
doc.remove(wordL, 2);
}else if(text.substring(wordL, wordR+1).contains("8")){
doc.setCharacterAttributes(wordL, text.length(), dark_grey, false);
doc.remove(wordL, 2);
}else if(text.substring(wordL, wordR+1).contains("9")){
doc.setCharacterAttributes(wordL, text.length(), indigo, false);
doc.remove(wordL, 2);
}else if(text.substring(wordL, wordR+1).contains("a")){
doc.setCharacterAttributes(wordL, text.length(), bright_green, false);
doc.remove(wordL, 2);
}else if(text.substring(wordL, wordR+1).contains("b")){
doc.setCharacterAttributes(wordL, text.length(), aqua, false);
doc.remove(wordL, 2);
}else if(text.substring(wordL, wordR+1).contains("c")){
doc.setCharacterAttributes(wordL, text.length(), red, false);
doc.remove(wordL, 2);
}else if(text.substring(wordL, wordR+1).contains("d")){
doc.setCharacterAttributes(wordL, text.length(), pink, false);
doc.remove(wordL, 2);
}else if(text.substring(wordL, wordR+1).contains("e")){
doc.setCharacterAttributes(wordL, text.length(), yellow, false);
doc.remove(wordL, 2);
}else if(text.substring(wordL, wordR+1).contains("f")){
doc.setCharacterAttributes(wordL, text.length(), white, false);
doc.remove(wordL, 2);
}else if(text.substring(wordL, wordR+1).contains("r")){
doc.setCharacterAttributes(wordL, text.length(), reset, false);
doc.remove(wordL, 2);
}else{
doc.setCharacterAttributes(wordL, wordR - wordL, attrBlack, false);
doc.remove(wordL, 1);
}
}
wordL = wordR;
wordR++;
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
感谢您的帮助。
答案 0 :(得分：1)
我会在将文本添加到文档之前解析文本。
您还希望摆脱if / else语句。任何时候你看到这样的结构，你知道你有设计问题。
以下是我将使用的方法：
public void addText(String text)
{
HashMap<String, AttributeSet> attributes = new HashMap<String, AttributeSet>();
attributes.put("0", black);
attributes.put("1", blue);
String[] lines = text.split("%");
for (int i = 1; i < lines.length; i++)
{
String line = lines[i];
String key = line.substring(0, 1);
String theText = line.substring(1);
AttributeSet attribute = attributes.get(key);
try
{
int len = doc.getLength();
doc.insertString(len, theText, attribute);
}
catch (BadLocationException e)
{
e.printStackTrace();
}
}
}
不是将所有颜色定义为常量，而是将属性放入地图中，这将作为初始化GUI的一部分完成，因为每次调用addText（）时都不想重建Map方法
另外，我更改我的代码以搜索“％”，因为我不知道其他字符是什么，因此您需要将其更改回您的特殊分隔符。实际上，您应该定义一个常量变量来包含分隔符值。
最后，您不应该将setBounds（）与GUI组件一起使用。 Swing旨在与布局管理器一起使用。