我有一个 JTextPane,其中文本颜色默认设置为蓝色。现在我在文本上添加了删除线,然后删除线颜色变得与文本相同(蓝色)。我想要文本的颜色和删除线不同。例如如果文本颜色为蓝色,则删除线必须不同。
请给我一些想法。
JTextPane text = new JTextPane();
Font font = new Font("Serif", Font.ITALIC, 20);
text.setFont(font);
text.setForeground(Color.BLUE);
Style style = text.addStyle("Bold", null);
StyleConstants.setStrikeThrough(style, true);
text.setCharacterAttributes(style, false);
最佳答案
import java.awt.*;
import javax.swing.*;
import javax.swing.text.*;
public class Test {
public Test() {
JFrame fr = new JFrame("TEST");
fr.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JEditorPane pane = new JEditorPane();
pane.setEditorKit(new NewEditorKit());
pane.setText("test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test ");
StyledDocument doc = (StyledDocument) pane.getDocument();
MutableAttributeSet attr = new SimpleAttributeSet();
attr.addAttribute("strike-color", Color.red);
doc.setCharacterAttributes(0, 9, attr, false);
attr.addAttribute("strike-color", Color.blue);
doc.setCharacterAttributes(10, 19, attr, false);
JScrollPane sp = new JScrollPane(pane);
fr.getContentPane().add(sp);
fr.setSize(300, 300);
fr.setLocationRelativeTo(null);
fr.setVisible(true);
}
public static void main(String[] args) {
Test test = new Test();
}
}
class NewEditorKit extends StyledEditorKit {
public ViewFactory getViewFactory() {
return new NewViewFactory();
}
}
class NewViewFactory implements ViewFactory {
public View create(Element elem) {
String kind = elem.getName();
if (kind != null) {
if (kind.equals(AbstractDocument.ContentElementName)) {
return new MyLabelView(elem);
}
else if (kind.equals(AbstractDocument.ParagraphElementName)) {
return new ParagraphView(elem);
}
else if (kind.equals(AbstractDocument.SectionElementName)) {
return new BoxView(elem, View.Y_AXIS);
}
else if (kind.equals(StyleConstants.ComponentElementName)) {
return new ComponentView(elem);
}
else if (kind.equals(StyleConstants.IconElementName)) {
return new IconView(elem);
}
}
// default to text display
return new LabelView(elem);
}
}
class MyLabelView extends LabelView {
public MyLabelView(Element elem) {
super(elem);
}
public void paint(Graphics g, Shape allocation) {
super.paint(g, allocation);
paintStrikeLine(g, allocation);
}
public void paintStrikeLine(Graphics g, Shape a) {
Color c=(Color)getElement().getAttributes().getAttribute("strike-color");
if (c!=null) {
int y = a.getBounds().y + a.getBounds().height - (int) getGlyphPainter().getDescent(this);
y = y - (int) (getGlyphPainter().getAscent(this) * 0.3f);
int x1 = (int) a.getBounds().getX();
int x2 = (int) (a.getBounds().getX() + a.getBounds().getWidth());
Color old = g.getColor();
g.setColor(c);
g.drawLine(x1, y, x2, y);
g.setColor(old);
}
}
}
关于java - Swing : font color & strike color in JTextPane,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/5337444/