我必须在JEditorPane
中突出显示所有出现的单词。为此,我使用以下代码:
try
{
javax.swing.text.DefaultHighlighter.DefaultHighlightPainter highlightPainter =
new javax.swing.text.DefaultHighlighter.DefaultHighlightPainter(Color.YELLOW);
textPane.getHighlighter().addHighlight(startPos, endPos,
highlightPainter);
}
catch(Exception ex)
{
}
但是我如何给出单词索引的位置?
我正在阅读文件中的内容,但它也正在阅读HTML标签,这会扰乱单词索引。
答案 0 :(得分:10)
基本上,您应该能够查找文档以查找您需要的匹配项...
public class TestEditorPane01 {
public static void main(String[] args) {
new TestEditorPane01();
}
public TestEditorPane01() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
}
JEditorPane editor = new JEditorPane();
try {
editor.setPage(new File("Test.html").toURI().toURL());
} catch (Exception exp) {
exp.printStackTrace();
}
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
frame.add(new JScrollPane(editor));
frame.setSize(400, 400);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
Document document = editor.getDocument();
try {
String find = "Method";
for (int index = 0; index + find.length() < document.getLength(); index++) {
String match = document.getText(index, find.length());
if (find.equals(match)) {
javax.swing.text.DefaultHighlighter.DefaultHighlightPainter highlightPainter =
new javax.swing.text.DefaultHighlighter.DefaultHighlightPainter(Color.YELLOW);
editor.getHighlighter().addHighlight(index, index + find.length(),
highlightPainter);
}
}
} catch (BadLocationException ex) {
ex.printStackTrace();
}
}
});
}
}
这将遍历整个文档并突出显示所有匹配项。这也是一个案例敏感的比赛;)
答案 1 :(得分:3)
这是我的情况,需要在EditorPane中突出显示一个搜索词:
// text in EditPane
String text = rSyntaxTextArea.getText();
if (text != null && !"".equals(filterText.getText())) {
Highlighter hilit = new RSyntaxTextAreaHighlighter();
rSyntaxTextArea.setHighlighter(hilit);
for (int index = text.toUpperCase().indexOf(
// searched text
filterText.getText().toUpperCase()); index >= 0; index = text
.toUpperCase().indexOf(
filterText.getText().toUpperCase(), index + 1)) {
int end = index + filterText.getText().length();
HighlightPainter painter = new DefaultHighlighter.DefaultHighlightPainter(
Color.LIGHT_GRAY);
try {
hilit.addHighlight(index, end, painter);
} catch (BadLocationException e) {
e.printStackTrace();
}
}
}
希望有所帮助。
答案 2 :(得分:1)
您可以执行以下操作:
getHighlighter().addHighlight(start, end,
new DefaultHighlighter.DefaultHighlightPainter(Color.red));