Java Swing文本字段中的ANSI颜色
是否有任何简单的方法来解析日志文件中的Ansi颜色，并在Swing（JTextArea，JTextPAne，…）中的文本字段中使用它？
没试过，但这里有一些代码 （需要一些格式看起来不错），声称是ANSI彩色的JTextPane子类…
对于后代，这是通过NetBeans运行以编写代码格式的类
import javax.swing.*; import javax.swing.text.*; import java.awt.Color; public class ColorPane extends JTextPane { static final Color D_Black = Color.getHSBColor( 0.000f, 0.000f, 0.000f ); static final Color D_Red = Color.getHSBColor( 0.000f, 1.000f, 0.502f ); static final Color D_Blue = Color.getHSBColor( 0.667f, 1.000f, 0.502f ); static final Color D_Magenta = Color.getHSBColor( 0.833f, 1.000f, 0.502f ); static final Color D_Green = Color.getHSBColor( 0.333f, 1.000f, 0.502f ); static final Color D_Yellow = Color.getHSBColor( 0.167f, 1.000f, 0.502f ); static final Color D_Cyan = Color.getHSBColor( 0.500f, 1.000f, 0.502f ); static final Color D_White = Color.getHSBColor( 0.000f, 0.000f, 0.753f ); static final Color B_Black = Color.getHSBColor( 0.000f, 0.000f, 0.502f ); static final Color B_Red = Color.getHSBColor( 0.000f, 1.000f, 1.000f ); static final Color B_Blue = Color.getHSBColor( 0.667f, 1.000f, 1.000f ); static final Color B_Magenta = Color.getHSBColor( 0.833f, 1.000f, 1.000f ); static final Color B_Green = Color.getHSBColor( 0.333f, 1.000f, 1.000f ); static final Color B_Yellow = Color.getHSBColor( 0.167f, 1.000f, 1.000f ); static final Color B_Cyan = Color.getHSBColor( 0.500f, 1.000f, 1.000f ); static final Color B_White = Color.getHSBColor( 0.000f, 0.000f, 1.000f ); static final Color cReset = Color.getHSBColor( 0.000f, 0.000f, 1.000f ); static Color colorCurrent = cReset; String remaining = ""; public void append(Color c, String s) { StyleContext sc = StyleContext.getDefaultStyleContext(); AttributeSet aset = sc.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.Foreground, c); int len = getDocument().getLength(); // same value as getText().length(); setCaretPosition(len); // place caret at the end (with no selection) setCharacterAttributes(aset, false); replaceSelection(s); // there is no selection, so inserts at caret } public void appendANSI(String s) { // convert ANSI color codes first int aPos = 0; // current char position in addString int aIndex = 0; // index of next Escape sequence int mIndex = 0; // index of "m" terminating Escape sequence String tmpString = ""; boolean stillSearching = true; // true until no more Escape sequences String addString = remaining + s; remaining = ""; if (addString.length() > 0) { aIndex = addString.indexOf("\u001B"); // find first escape if (aIndex == -1) { // no escape/color change in this string, so just send it with current color append(colorCurrent,addString); return; } // otherwise There is an escape character in the string, so we must process it if (aIndex > 0) { // Escape is not first char, so send text up to first escape tmpString = addString.substring(0,aIndex); append(colorCurrent, tmpString); aPos = aIndex; } // aPos is now at the beginning of the first escape sequence stillSearching = true; while (stillSearching) { mIndex = addString.indexOf("m",aPos); // find the end of the escape sequence if (mIndex < 0) { // the buffer ends halfway through the ansi string! remaining = addString.substring(aPos,addString.length()); stillSearching = false; continue; } else { tmpString = addString.substring(aPos,mIndex+1); colorCurrent = getANSIColor(tmpString); } aPos = mIndex + 1; // now we have the color, send text that is in that color (up to next escape) aIndex = addString.indexOf("\u001B", aPos); if (aIndex == -1) { // if that was the last sequence of the input, send remaining text tmpString = addString.substring(aPos,addString.length()); append(colorCurrent, tmpString); stillSearching = false; continue; // jump out of loop early, as the whole string has been sent now } // there is another escape sequence, so send part of the string and prepare for the next tmpString = addString.substring(aPos,aIndex); aPos = aIndex; append(colorCurrent, tmpString); } // while there's text in the input buffer } } public Color getANSIColor(String ANSIColor) { if (ANSIColor.equals("\u001B[30m")) { return D_Black; } else if (ANSIColor.equals("\u001B[31m")) { return D_Red; } else if (ANSIColor.equals("\u001B[32m")) { return D_Green; } else if (ANSIColor.equals("\u001B[33m")) { return D_Yellow; } else if (ANSIColor.equals("\u001B[34m")) { return D_Blue; } else if (ANSIColor.equals("\u001B[35m")) { return D_Magenta; } else if (ANSIColor.equals("\u001B[36m")) { return D_Cyan; } else if (ANSIColor.equals("\u001B[37m")) { return D_White; } else if (ANSIColor.equals("\u001B[0;30m")) { return D_Black; } else if (ANSIColor.equals("\u001B[0;31m")) { return D_Red; } else if (ANSIColor.equals("\u001B[0;32m")) { return D_Green; } else if (ANSIColor.equals("\u001B[0;33m")) { return D_Yellow; } else if (ANSIColor.equals("\u001B[0;34m")) { return D_Blue; } else if (ANSIColor.equals("\u001B[0;35m")) { return D_Magenta; } else if (ANSIColor.equals("\u001B[0;36m")) { return D_Cyan; } else if (ANSIColor.equals("\u001B[0;37m")) { return D_White; } else if (ANSIColor.equals("\u001B[1;30m")) { return B_Black; } else if (ANSIColor.equals("\u001B[1;31m")) { return B_Red; } else if (ANSIColor.equals("\u001B[1;32m")) { return B_Green; } else if (ANSIColor.equals("\u001B[1;33m")) { return B_Yellow; } else if (ANSIColor.equals("\u001B[1;34m")) { return B_Blue; } else if (ANSIColor.equals("\u001B[1;35m")) { return B_Magenta; } else if (ANSIColor.equals("\u001B[1;36m")) { return B_Cyan; } else if (ANSIColor.equals("\u001B[1;37m")) { return B_White; } else if (ANSIColor.equals("\u001B[0m")) { return cReset; } else { return B_White; } } } 如果您的JTextPane是不可编辑的，那么tim_yates方法将无法工作，为了改进他的方法，我将其替换为append方法
public void append(Color c, String s) { StyleContext sc = StyleContext.getDefaultStyleContext(); AttributeSet aset = sc.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.Foreground, c); int len = getDocument().getLength(); try {getDocument().insertString(len, s, aset);} catch (BadLocationException e) {e.printStackTrace();} }
这种方法似乎更加强大，适用于我尝试过的所有情况，但我还没有完全测试过
此方法的工作原理是在文档的末尾插入彩色文本，而不是替换不存在的文本，如果它不可编辑，则会导致重复的Windows错误声音，这非常烦人