特定单词don';在JTextPane[java]中不能更改颜色
我正在编写一个代码,其目标是拥有一个simil文本编辑器,其中一些单词(用下面的代码编写)、键入时更改颜色,或者从JFileChooser中获取的.txt文件加载。 代码如下:特定单词don';在JTextPane[java]中不能更改颜色,java,swing,jtextpane,jdk1.6,Java,Swing,Jtextpane,Jdk1.6,我正在编写一个代码,其目标是拥有一个simil文本编辑器,其中一些单词(用下面的代码编写)、键入时更改颜色,或者从JFileChooser中获取的.txt文件加载。 代码如下: package AppPackage; import java.awt.Color; import java.io.BufferedReader; import java.io.File; import java.io.FileNotFoundException; import java.io.FileReader;
package AppPackage;
import java.awt.Color;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import javax.swing.JFileChooser;
import javax.swing.JTextPane;
import javax.swing.filechooser.FileNameExtensionFilter;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.DefaultStyledDocument;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyleContext;
/**
*
* @author Alessandro
*/
public class NewJFrame extends javax.swing.JFrame {
/** Creates new form NewJFrame */
public NewJFrame() {
initComponents();
final StyleContext cont = StyleContext.getDefaultStyleContext();
final AttributeSet attrGray = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, Color.gray);
final AttributeSet attrGreen = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, Color.GREEN);
final AttributeSet attrBlue = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, Color.BLUE);
final AttributeSet attrRed = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, Color.RED);
final AttributeSet attrBlack = cont.addAttribute(cont.getEmptySet(), StyleConstants.Foreground, Color.BLACK);
DefaultStyledDocument doc = new DefaultStyledDocument() {
@Override
public void insertString (int offset, String str, AttributeSet a) throws BadLocationException {
super.insertString(offset, str, a);
String text = getText(0, getLength());
int before = findLastNonWordChar(text, offset);
if (before < 0) before = 0;
int after = findFirstNonWordChar(text, offset + str.length());
int wordL = before;
int wordR = before;
while (wordR <= after) {
if (wordR == after || String.valueOf(text.charAt(wordR)).matches("\\W")) {
if (text.substring(wordL, wordR).matches("(\\W)*(System)"))
setCharacterAttributes(wordL, wordR - wordL, attrBlue, false);
else if (text.substring(wordL, wordR).matches("(\\W)*(Mobile)"))
setCharacterAttributes(wordL, wordR - wordL, attrBlue, false);
else if (text.substring(wordL, wordR).matches("(\\W)*(heaven)"))
setCharacterAttributes(wordL, wordR - wordL, attrBlue, false);
else if (text.substring(wordL, wordR).matches("(\\W)*(calc)"))
setCharacterAttributes(wordL, wordR - wordL, attrBlue, false);
else if (text.substring(wordL, wordR).matches("(\\W)*(private)"))
setCharacterAttributes(wordL, wordR - wordL, attrBlue, false);
else if (text.substring(wordL, wordR).matches("(\\W)*(public)"))
setCharacterAttributes(wordL, wordR - wordL, attrGray, false);
else if (text.substring(wordL, wordR).matches("(\\W)*(party)"))
setCharacterAttributes(wordL, wordR - wordL, attrRed, false);
else
setCharacterAttributes(wordL, wordR - wordL, attrBlack, false);
wordL = wordR;
}
wordR++;
}
}
@Override
public void remove (int offs, int len) throws BadLocationException {
super.remove(offs, len);
String text = getText(0, getLength());
int before = findLastNonWordChar(text, offs);
if (before < 0) before = 0;
int after = findFirstNonWordChar(text, offs);
if (text.substring(before, after).matches("(\\W)*(System)"))
setCharacterAttributes(before, after - before, attrBlue, false);
else if (text.substring(before, after).matches("(\\W)*(PlasmaMembrane)"))
setCharacterAttributes(before, after - before, attrBlue, false);
else if (text.substring(before, after).matches("(\\W)*(Cytosol)"))
setCharacterAttributes(before, after - before, attrBlue, false);
else if (text.substring(before, after).matches("(\\W)*(Organelle)"))
setCharacterAttributes(before, after - before, attrBlue, false);
else if (text.substring(before, after).matches("(\\W)*(Nucleous)"))
setCharacterAttributes(before, after - before, attrBlue, false);
else if (text.substring(before, after).matches("(\\W)*(volume)"))
setCharacterAttributes(before, after - before, attrGray, false);
else if (text.substring(before, after).matches("(\\W)*(rate)"))
setCharacterAttributes(before, after - before, attrRed, false);
else {
setCharacterAttributes(before, after - before, attrBlack, false);
}
}
};
JTextPane txt = new JTextPane(doc);
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
openBtn = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane();
textModel = new javax.swing.JTextPane();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
openBtn.setText("Open");
openBtn.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
openBtnActionPerformed(evt);
}
});
jScrollPane1.setViewportView(textModel);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(216, 216, 216)
.addComponent(openBtn))
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 545, Short.MAX_VALUE)))
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(19, 19, 19)
.addComponent(openBtn)
.addGap(18, 18, 18)
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 370, Short.MAX_VALUE)
.addContainerGap())
);
pack();
}// </editor-fold>
String spec;
File f;
String filename;
JFileChooser chooser;
private void openBtnActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
chooser = new JFileChooser();
FileNameExtensionFilter filter = new FileNameExtensionFilter(".txt files", "txt", "text");
chooser.setFileFilter(filter);
int option = chooser.showOpenDialog(null);
if (option == JFileChooser.APPROVE_OPTION) {
f = chooser.getSelectedFile();
filename = f.getAbsolutePath();
String modelSpec = readSpecification();
spec = modelSpec;
textModel.setText(spec);
}
}
public String readSpecification() {
String spec1 = "";
// trying to read from file the specification...
try {
BufferedReader reader = new BufferedReader(new FileReader(filename));
String line = reader.readLine();
while(line!=null) {
spec1 += line + "\n";
line = reader.readLine();
}
} catch (FileNotFoundException ex) {
ex.printStackTrace();
} catch (IOException ex) {
ex.printStackTrace();
}
return spec1;
}
private int findLastNonWordChar (String text, int index) {
while (--index >= 0) {
if (String.valueOf(text.charAt(index)).matches("\\W")) {
break;
}
}
return index;
}
private int findFirstNonWordChar (String text, int index) {
while (index < text.length()) {
if (String.valueOf(text.charAt(index)).matches("\\W")) {
break;
}
index++;
}
return index;
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new NewJFrame().setVisible(true);
new NewJFrame();
}
});
}
// Variables declaration - do not modify
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JButton openBtn;
private javax.swing.JTextPane textModel;
// End of variables declaration
}
package-AppPackage;
导入java.awt.Color;
导入java.io.BufferedReader;
导入java.io.File;
导入java.io.FileNotFoundException;
导入java.io.FileReader;
导入java.io.IOException;
导入javax.swing.JFileChooser;
导入javax.swing.JTextPane;
导入javax.swing.filechooser.FileNameExtensionFilter;
导入javax.swing.text.AttributeSet;
导入javax.swing.text.BadLocationException;
导入javax.swing.text.DefaultStyledDocument;
导入javax.swing.text.StyleConstants;
导入javax.swing.text.StyleContext;
/**
*
*@作者亚历山德罗
*/
公共类NewJFrame扩展了javax.swing.JFrame{
/**创建新表单NewJFrame*/
公共NewJFrame(){
初始化组件();
final StyleContext cont=StyleContext.getDefaultStyleContext();
最终属性set attrGray=cont.addAttribute(cont.getEmptySet(),StyleConstants.Foreground,Color.gray);
最终属性set attrGreen=cont.addAttribute(cont.getEmptySet(),StyleConstants.Foreground,Color.GREEN);
最终属性set attrBlue=cont.addAttribute(cont.getEmptySet(),StyleConstants.Foreground,Color.BLUE);
最终属性set attrRed=cont.addAttribute(cont.getEmptySet(),StyleConstants.Foreground,Color.RED);
最终属性set attrBlack=cont.addAttribute(cont.getEmptySet(),StyleConstants.Foreground,Color.BLACK);
DefaultStyledDocument doc=新的DefaultStyledDocument(){
@凌驾
public void insertString(int offset、String str、AttributeSet a)引发BadLocationException{
super.insertString(offset,str,a);
String text=getText(0,getLength());
int before=findLastNonWordChar(文本,偏移量);
如果(之前<0)之前=0;
int after=findFirstNonWordChar(text,offset+str.length());
int-wordL=before;
int-wordR=before;
while(wordR=0){
如果(String.valueOf(text.charAt(index)).matches(“\\W”)){
打破
}
}
收益指数;
}
私有int findFirstNonWordChar(字符串文本,int索引){
while(索引
这是一个SSCCE。
没有出现错误或异常,但是单词没有改变颜色,我不明白为什么。我将应该改变颜色的代码放在构造函数中,并将调用newnewjframe();
放在main方法中。
你能帮我解决这个问题吗?
谢谢!差不多了你做得很好。差不多了。 需要对代码进行小的更改:
initComponents
添加参数:
initComponents(DefaultStyledDocument文档)JTextPane
textModel=newjavax.swing.JTextPane(doc)NewJFrame
构造函数中删除JTextPane txt=newjtextpane(doc);
NewJFrame
构造函数的末尾
初始组件(doc)差不多你做到了,差不多。 需要对代码进行小的更改:
initComponents
添加参数:
initComponents(DefaultStyledDocument文档)JTextPane
textModel=newjavax.swing.JTextPane(doc)NewJFrame
构造函数中删除JTextPane txt=newjtextpane(doc);
NewJFrame
构造函数的末尾
初始组件(doc)