我一直在寻找这一段时间,到目前为止,我已经能够想出的是如何创建一个风格,并将其应用于如下所示的角色：
StyledDocument doc = (StyledDocument) new DefaultStyledDocument();
JTextPane textpane = new JTextPane(doc);
textpane.setText("Test");
javax.swing.text.Style style = textpane.addStyle("Red",null);
StyleConstants.setForeground(style,Color.RED);
doc.setCharacterAttributes(0,1,textpane.getStyle("Red"),true);
如果您的文档中只有几种样式,并希望按名称存储它们,这样可以轻松应用,这很有用.在我的应用程序中,我想要为文本中的每个字符独立设置前景色(只有几个值之一)和背景颜色(灰度,许多不同的值).为此创造潜在的数百种/不同的风格似乎是一个巨大的浪费.有没有办法设置这些属性,而不必每次创建一个新的样式？如果我只需要呈现文本就会更容易,但是我也需要使其可编辑.有没有办法用JTextPane做这个,还是有另一个摆放类提供这个功能？
解决方法
如果要更改文本框中每个字符的样式,这里是一个完整的随机方式来执行.您为每个字符创建一个不同的属性集.由你找到适当的组合(前景/背景对比,字符大小不同等等).您还可以存储已应用的不同样式,以使两次不使用相同的样式.
import java.awt.Color;
import java.util.Random;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.text.DefaultStyledDocument;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledDocument;
public class TestDifferentStyles {
private void initUI() {
JFrame frame = new JFrame(TestDifferentStyles.class.getSimpleName());
frame.setDefaultCloSEOperation(JFrame.EXIT_ON_CLOSE);
StyledDocument doc = new DefaultStyledDocument();
JTextPane textPane = new JTextPane(doc);
textPane.setText("Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has "
+ "been the industry's standard dummy text ever since the 1500s,when an unknown printer took a galley of "
+ "type and scrambled it to make a type specimen book. It has survived not only five centuries,but also the "
+ "leap into electronic typesetting,remaining essentially unchanged. It was popularised in the 1960s with the"
+ " release of Letraset sheets containing Lorem Ipsum passages,and more recently with desktop publishing "
+ "software like Aldus PageMaker including versions of Lorem Ipsum.");
Random random = new Random();
for (int i = 0; i < textPane.getDocument().getLength(); i++) {
SimpleAttributeSet set = new SimpleAttributeSet();
// StyleConstants.setBackground(set,new Color(random.nextInt(256),random.nextInt(256),random.nextInt(256)));
StyleConstants.setForeground(set,random.nextInt(256)));
StyleConstants.setFontSize(set,random.nextInt(12) + 12);
StyleConstants.setBold(set,random.nextBoolean());
StyleConstants.setItalic(set,random.nextBoolean());
StyleConstants.setUnderline(set,random.nextBoolean());
doc.setCharacterAttributes(i,set,true);
}
frame.add(new JScrollPane(textPane));
frame.setSize(500,400);
frame.setVisible(true);
}
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new TestDifferentStyles().initUI();
}
});
}
}
