我尝试了很多不同的东西但我似乎无法弄清楚如何去做。我已经阅读了大约40页关于如何设置窗格中所有文本的颜色，但没有一个特定的位。我有一些SSCCEE的源代码（无论它叫什么），但它没有我尝试过的，它只是显示了我想要改变颜色的内容。
在tf.addActioListener()中有一点
else {
tf.setText("> ");
tp.setText(tp.getText() + "> ERROR: Invalid Command" + newline);
try {
FileWriter fw = new FileWriter(file);
fw.write(tp.getText());
fw.close();
} catch (IOException ioe) {}
}
我想将“＆gt;错误：无效命令”的颜色更改为红色。
P.S。我忘了提到这是我正在制作的基于文本的游戏。在此先感谢，Braydon
CODE：
package net.GUI.frame;
import java.awt.event.*;
import java.awt.*;
import java.io.*;
import javax.swing.*;
public class Frame {
public static void main(String[] args) {
JFrame frame = new JFrame();
final JTextPane tp = new JTextPane();
final JTextField tf = new JTextField();
JScrollPane sp = new JScrollPane();
JPanel panel = new JPanel();
final File file = new File("log.txt");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
frame.setSize(350,410);
tp.setEditable(false);
tp.setForeground(Color.blue);
tf.setText("> ");
sp.setViewportView(tp);
GroupLayout jPanel2Layout = new javax.swing.GroupLayout(panel);
panel.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(tf)
.addComponent(sp, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 380, Short.MAX_VALUE)
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel2Layout.createSequentialGroup()
.addComponent(sp, javax.swing.GroupLayout.DEFAULT_SIZE, 352, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(tf, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
);
GroupLayout layout = new javax.swing.GroupLayout(frame.getContentPane());
frame.getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(panel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(panel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap())
);
frame.addWindowListener( new WindowAdapter() {
public void windowOpened( WindowEvent e ){
tf.requestFocus();
}
});
/**File file10 = new File("Rooms/Room1/roomDescription.txt");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(baos);
PrintStream old = System.out;
System.setOut(ps);
try {
FileReader fr = new FileReader(file10);
int ch = fr.read();
while(ch != -1) {
System.out.print((char) ch);
ch = fr.read();
}
} catch (Exception ex) {
}
System.out.flush();
System.setOut(old);
tp.setText(baos.toString());
try {
FileWriter fw = new FileWriter(file);
fw.write(tp.getText());
fw.close();
} catch (IOException ioe) {
}*/
tp.setText("You find yourself in a blank room with a cot and a small stool. The walls are made of cold " +
"grey concrete and have been sanded smooth. There is a solid iron door set into one of the walls." +
" There are no windows." +
"\nWhat do you want to do?" +
"\n" +
"\n");
tf.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
String newline = "\n";
if(tf.getText().equals("> inspect cot")) {
String string = tf.getText();
tp.setText(tp.getText()+string + newline);
tf.setText("> ");
File file1 = new File("Rooms/Room1/inspectCot.txt");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(baos);
PrintStream old = System.out;
System.setOut(ps);
try {
FileReader fr = new FileReader(file1);
int ch = fr.read();
while(ch != -1) {
System.out.print((char) ch);
ch = fr.read();
}
} catch (Exception ex) {
}
System.out.flush();
System.setOut(old);
tp.setText(tp.getText() + (baos.toString()));
try {
FileWriter fw = new FileWriter(file);
fw.write(tp.getText());
fw.close();
} catch (IOException ioe) {
}
} else {
tf.setText("> ");
tp.setText(tp.getText() + "> ERROR: Invalid Command" + newline);
try {
FileWriter fw = new FileWriter(file);
fw.write(tp.getText());
fw.close();
} catch (IOException ioe) {
}
}
}
});
}
}
我已经使用JTextArea制作了游戏，但是如果你知道我的意思，我想让它更美观一些吗？
答案 0 :(得分：3)
如果要更改文本窗格中子字符串的颜色，则需要在HTML而不是普通文本中设置文本。您可以将其设置为：tp.setContentType ( "text/html" );并将其用作：tp.setText("<html>any string <font color='red'>> ERROR: Invalid Command</font></html>");。您可以仅在字体标记中覆盖子字符串，在简单的html标记中覆盖其他字符串。
例如，您可以尝试自己的示例（但需要在所有地方将其更改为html）：
import java.awt.event.*;
import java.awt.*;
import java.io.*;
import javax.swing.*;
public class Test {
public static void main(String[] args) {
JFrame frame = new JFrame();
final JTextPane tp = new JTextPane();
tp.setContentType ( "text/html" );
final JTextField tf = new JTextField();
JScrollPane sp = new JScrollPane();
JPanel panel = new JPanel();
final File file = new File("log.txt");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
frame.setSize(350,410);
tp.setEditable(false);
tp.setForeground(Color.blue);
tf.setText("> ");
sp.setViewportView(tp);
GroupLayout jPanel2Layout = new javax.swing.GroupLayout(panel);
panel.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(tf)
.addComponent(sp, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 380, Short.MAX_VALUE)
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel2Layout.createSequentialGroup()
.addComponent(sp, javax.swing.GroupLayout.DEFAULT_SIZE, 352, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(tf, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
);
GroupLayout layout = new javax.swing.GroupLayout(frame.getContentPane());
frame.getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(panel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(panel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap())
);
frame.addWindowListener( new WindowAdapter() {
public void windowOpened( WindowEvent e ){
tf.requestFocus();
}
});
/**File file10 = new File("Rooms/Room1/roomDescription.txt");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(baos);
PrintStream old = System.out;
System.setOut(ps);
try {
FileReader fr = new FileReader(file10);
int ch = fr.read();
while(ch != -1) {
System.out.print((char) ch);
ch = fr.read();
}
} catch (Exception ex) {
}
System.out.flush();
System.setOut(old);
tp.setText(baos.toString());
try {
FileWriter fw = new FileWriter(file);
fw.write(tp.getText());
fw.close();
} catch (IOException ioe) {
}*/
tp.setText("You find yourself in a blank room with a cot and a small stool. The walls are made of cold " +
"grey concrete and have been sanded smooth. There is a solid iron door set into one of the walls." +
" There are no windows." +
"\nWhat do you want to do?" +
"\n" +
"\n");
tf.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
String newline = "\n";
if(tf.getText().equals("> inspect cot")) {
String string = tf.getText();
tp.setText(tp.getText()+string + newline);
tf.setText("> ");
File file1 = new File("Rooms/Room1/inspectCot.txt");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(baos);
PrintStream old = System.out;
System.setOut(ps);
try {
FileReader fr = new FileReader(file1);
int ch = fr.read();
while(ch != -1) {
System.out.print((char) ch);
ch = fr.read();
}
} catch (Exception ex) {
}
System.out.flush();
System.setOut(old);
tp.setText(tp.getText() + (baos.toString()));
try {
FileWriter fw = new FileWriter(file);
fw.write(tp.getText());
fw.close();
} catch (IOException ioe) {
}
} else {
tf.setText("> ");
tp.setText("<html>any string <font color='red'>> ERROR: Invalid Command</font></html>" + newline);
try {
FileWriter fw = new FileWriter(file);
fw.write(tp.getText());
fw.close();
} catch (IOException ioe) {
}
}
}
});
}
}
答案 1 :(得分：3)
作为使用HTML标记的替代方法，TextComponentDemo显示了如何应用多个StyleConstants，包括字体大小，样式，对齐方式和颜色。这些样式可以直接应用于Document，如initAttributes()所示，也可以通过StyledEditorKit的操作应用here。