javax.swing.text.Element类的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中javax.swing.text.Element类的一些代码示例，展示了Element类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Element类的具体详情如下：
包路径：javax.swing.text.Element
类名称：Element

Element介绍

暂无

代码示例

代码示例来源：origin: SonarSource/sonarqube

protected String getTextLineNumber(int rowStartOffset) {
 Element root = component.getDocument().getDefaultRootElement();
 int index = root.getElementIndex(rowStartOffset);
 Element line = root.getElement(index);
 if (line.getStartOffset() == rowStartOffset)
  return String.valueOf(index + 1);
 else
  return "";
}

代码示例来源：origin: groovy/groovy-core

private int calcEndParse(int offset) {
  MultiLineRun mlr = getMultiLineRun(offset);
  if (mlr != null) {
    // means we're in middle of mlr, so end is at end of mlr
    offset = mlr.end();
  }
  else {
    // otherwise, latest position in line not part of mlr
    offset = styledDocument.getParagraphElement(offset).getEndOffset();
    mlr = getMultiLineRun(offset);
    offset = mlr == null ? offset : mlr.end();
  }
  
  return offset;
}

代码示例来源：origin: SonarSource/sonarqube

Rectangle r = component.modelToView(rowStartOffset);
int lineHeight = fontMetrics.getHeight();
int y = r.y + r.height;
  fonts = new HashMap<>();
 Element root = component.getDocument().getDefaultRootElement();
 int index = root.getElementIndex(rowStartOffset);
 Element line = root.getElement(index);
 for (int i = 0; i < line.getElementCount(); i++) {
  Element child = line.getElement(i);
  AttributeSet as = child.getAttributes();
  String fontFamily = (String) as.getAttribute(StyleConstants.FontFamily);
  Integer fontSize = (Integer) as.getAttribute(StyleConstants.FontSize);
  String key = fontFamily + fontSize;
   fm = component.getFontMetrics(font);
   fonts.put(key, fm);

代码示例来源：origin: skylot/jadx

fonts = new HashMap<>();
Element root = codeArea.getDocument().getDefaultRootElement();
int index = root.getElementIndex(rowStartOffset);
Element line = root.getElement(index);
for (int i = 0; i < line.getElementCount(); i++) {
  Element child = line.getElement(i);
  AttributeSet as = child.getAttributes();
  String fontFamily = (String) as.getAttribute(StyleConstants.FontFamily);
  Integer fontSize = (Integer) as.getAttribute(StyleConstants.FontSize);
  String key = fontFamily + fontSize;
  FontMetrics fm = fonts.computeIfAbsent(key, k -> {

代码示例来源：origin: groovy/groovy-core

public int findTabLocation(int offset) {
    // find first {
    boolean cont = true;
    while (offset > -1 && cont) {
      Element el = doc.getCharacterElement(offset);
      Object color =
          el.getAttributes().getAttribute(StyleConstants.Foreground);
      if (!COMMENT_COLOR.equals(color)) {
        cont = segment.array[offset] != '{' &&
            segment.array[offset] != '}';
      }
      offset -= cont ? 1 : 0;
    }
    if (offset > -1 && segment.array[offset] == '{') {
      while (offset > -1 &&
          !Character.isWhitespace(segment.array[offset--])) {
      }
    }
    int index = offset < 0 || segment.array[offset] == '}' ? -4 : 0;
    if (offset > -1) {
      Element top = doc.getDefaultRootElement();
      offset = top.getElement(top.getElementIndex(offset)).getStartOffset();
      while (Character.isWhitespace(segment.array[offset++])) {
        index++;
      }
    }
    return index;
  }
}

代码示例来源：origin: stackoverflow.com

Element rootElement = doc.getDefaultRootElement();
int line = rootElement.getElementIndex( offset );
int i = rootElement.getElement(line).getStartOffset();
StringBuilder whiteSpace = new StringBuilder(text);
  String temp = doc.getText(i, 1);
AbstractDocument doc = (AbstractDocument)textArea.getDocument();
doc.setDocumentFilter( new EndOfLineFilter() );
JFrame frame = new JFrame("SSCCE");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add( new JScrollPane( textArea ) );
frame.pack();
frame.setLocationByPlatform( true );
frame.setVisible( true );

代码示例来源：origin: stackoverflow.com

public void run() {
  JFrame frame = new JFrame();
  frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  frame.setLayout(new BorderLayout());
  frame.add(new TestTextAreaPane());
  frame.pack();
  frame.setLocationRelativeTo(null);
  frame.setVisible(true);
setLayout(new BorderLayout());
textArea = new JTextArea(20, 100);
textArea.setWrapStyleWord(true);
  textArea.read( br, null );
  br.close();
      int startIndex = textArea.viewToModel(p);
      int endIndex = textArea.viewToModel(p);
      Element root = textArea.getDocument().getDefaultRootElement();
      int startLine =  root.getElementIndex( startIndex );
      int endLine =  root.getElementIndex( endIndex );
      int lines = endLine - startLine + 1;
      System.out.println(lines);

代码示例来源：origin: stackoverflow.com

textArea.setText("This is just a line of text, "
    + "This is just a line of text, This is just a line of text, "
    + "This is just a line of text,\nThis is just a line of text,"
  public void actionPerformed(ActionEvent e) {
    textArea.setFont(textArea.getFont().deriveFont(20f));
    frame.pack();
scrollPane.setViewportView(textArea);
frame.add(scrollPane);
frame.add(button, BorderLayout.SOUTH);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocation(100, 100);
frame.pack();
frame.setVisible(true);
Element paragraph = textArea.getDocument().getDefaultRootElement();
int contentCount = paragraph.getElementCount();
for (int i = 0; i < contentCount; i++) {
  Element e = paragraph.getElement(i);
  int rangeStart = e.getStartOffset();
  int rangeEnd = e.getEndOffset();
  String line;
  try {
    line = textArea.getText(rangeStart, rangeEnd - rangeStart);
    System.out.println(line);
  } catch (BadLocationException ex) {

代码示例来源：origin: stackoverflow.com

public JComponent makeUI() {
 JTextArea textArea = new JTextArea(8,0);
 textArea.setText("> aaa\n> ");
 ((AbstractDocument)textArea.getDocument()).setDocumentFilter(
   new NonEditableLineDocumentFilter());
 JPanel p = new JPanel(new BorderLayout());
 p.add(new JScrollPane(textArea), BorderLayout.NORTH);
 return p;
 JFrame f = new JFrame();
 f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
 f.getContentPane().add(new OnlyEditCurrentLineTest().makeUI());
 f.setSize(320,240);
 f.setLocationRelativeTo(null);
 f.setVisible(true);
  String text, AttributeSet attrs) throws BadLocationException {
  Document doc = fb.getDocument();
  Element root = doc.getDefaultRootElement();
  int count = root.getElementCount();
  int index = root.getElementIndex(offset);
  Element cur = root.getElement(index);
  int promptPosition = cur.getStartOffset()+PROMPT.length();
    String cmd = doc.getText(promptPosition, offset-promptPosition);
    if(cmd.isEmpty()) {
     text = "\n"+PROMPT;

代码示例来源：origin: stackoverflow.com

textArea.setEditable(false);
JPanel p = new JPanel(new BorderLayout());
p.add(new JScrollPane(textArea));
p.add(new JButton(new AbstractAction("add") {
  @Override
  public void actionPerformed(ActionEvent e) {
    try {
      Document doc = textArea.getDocument();
      Element root = doc.getDefaultRootElement();
      Element element = root.getElement(2);
      int start = element.getStartOffset();
      int end = element.getEndOffset();
      System.out.println(doc.getText(start, end - start));
    } catch (BadLocationException ex) {
      ex.printStackTrace();
  JFrame f = new JFrame();
  f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
  f.getContentPane().add(new ElementEndOffsetTest().makeUI());
  f.setSize(320, 240);
  f.setLocationRelativeTo(null);
  f.setVisible(true);
});

代码示例来源：origin: stackoverflow.com

setDefaultCloseOperation(DISPOSE_ON_CLOSE);
getContentPane().add(jScrollPane1);
myFormattedOuput.setContentType("text/html");
myFormattedOuput.setEditable(false);
jScrollPane1.setViewportView(myFormattedOuput);
myFormattedOuput.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
        Document doc = myFormattedOuput.getDocument();
        Element html = doc.getRootElements()[0];
        Element body = html.getElement(1);
        Element table = body.getElement(1);
        try {
          Element tr2 = table.getElement(1);
          Element tr2td1 = tr2.getElement(0);
          doc.insertString(tr2td1.getStartOffset(), "1: 123,456",
                   SimpleAttributeSet.EMPTY);
          Element tr3 = table.getElement(2);
          Element tr3td1 = tr3.getElement(0);
          doc.insertString(tr3td1.getStartOffset(), "2: 765.123",
                   SimpleAttributeSet.EMPTY);
        } catch (BadLocationException e) {

代码示例来源：origin: stackoverflow.com

String kind = elem.getName();
  if (kind != null) {
    if (kind.equals(AbstractDocument.ContentElementName)) {
JFrame frame=new JFrame("Custom default Tab Size in EditorKit example");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JEditorPane edit=new JEditorPane();
edit.setEditorKit(new TabSizeEditorKit());
try {
  edit.getDocument().insertString(0,"1\t2\t3\t4\t5", new SimpleAttributeSet());
} catch (BadLocationException e) {
  e.printStackTrace(); 
frame.getContentPane().add(new JScrollPane(edit));
frame.setSize(300,100);
frame.setLocationRelativeTo(null);
frame.setVisible(true);

代码示例来源：origin: stackoverflow.com

textArea.setEditable(false);
JPanel p = new JPanel(new BorderLayout());
p.add(new JScrollPane(textArea));
p.add(new JButton(new AbstractAction("add") {
 @Override public void actionPerformed(ActionEvent e) {
  Document doc = textArea.getDocument();
  Element root = doc.getDefaultRootElement();
  Optional.ofNullable(root.getElement(2)).ifPresent(el -> {
   try {
    doc.insertString(el.getEndOffset() - 1, " my text here", null);
   } catch (BadLocationException ex) {
    ex.printStackTrace();
 JFrame f = new JFrame();
 f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
 f.getContentPane().add(new ElementEndOffsetTest().makeUI());
 f.setSize(320, 240);
 f.setLocationRelativeTo(null);
 f.setVisible(true);
});

代码示例来源：origin: stackoverflow.com

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(200,200);
getContentPane().setLayout(new BorderLayout());
JTextPane jtp = new JTextPane();
jtp.setEditorKit(new WrapEditorKit());
JScrollPane jsp = new JScrollPane(jtp);
jsp.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
getContentPane().add(jsp, BorderLayout.CENTER);
jtp.setText("ExampleOfTheWrapLongWordWithoutSpaces");
setVisible(true);
  String kind = elem.getName();
  if (kind != null) {
    if (kind.equals(AbstractDocument.ContentElementName)) {

代码示例来源：origin: stackoverflow.com

JComboBox cBox = createComboBox(textArea);
JFrame frame = new JFrame();
frame.add(new JScrollPane(textArea));
frame.add(cBox, BorderLayout.SOUTH);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
  public void actionPerformed(ActionEvent e) {
    int index = (Integer)cBox.getSelectedItem();
    textArea.setCaretPosition(
        textArea.getDocument().getDefaultRootElement().getElement(index).getStartOffset());
    textArea.requestFocusInWindow();
textArea.setMargin(new Insets(15, 15, 15, 15));
textArea.setLineWrap(true);
textArea.setWrapStyleWord(true);

代码示例来源：origin: stackoverflow.com

final JFrame frm = new JFrame("Editor pane test");
pane.setContentType("text/html");
pane.setText("<html>Here is the text with a <a href=\"http://google.com\">link</a></html>");
frm.add(new JScrollPane(pane));
final JButton btn = new JButton(new AbstractAction("Find link") {
    final HTMLDocument doc = (HTMLDocument) pane.getDocument();
    final Collection<String> links = new LinkedHashSet<String>();
      final AttributeSet a = el.getAttributes();
      final AttributeSet anchor = (AttributeSet)a.getAttribute(HTML.Tag.A);
      if (anchor != null) {
        links.add((String)anchor.getAttribute(HTML.Attribute.HREF));
frm.add(btn, BorderLayout.EAST);
frm.pack();
frm.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frm.setVisible(true);

代码示例来源：origin: stackoverflow.com

JFrame frame = new JFrame();
JEditorPane edPane = new JEditorPane(); 
  edPane.setContentType("text/html");
  System.out.println(edPane.getText());
  edPane.setEditorKit(hek);
  HTMLDocument doc = (HTMLDocument) edPane.getDocument();
  for( int i = 0; i < roots[0].getElementCount(); i++ ) {
    Element element = roots[0].getElement( i );
    if( element.getAttributes().getAttribute( StyleConstants.NameAttribute ) == HTML.Tag.BODY ) {
      body = element;
      break;
frame.add(edPane);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.pack();
frame.setVisible(true);

代码示例来源：origin: stackoverflow.com

public Smiley() throws Exception {
  p.setEditorKit(new StyledEditorKit());
  getContentPane().add(p, BorderLayout.CENTER);
  SimpleAttributeSet attrs = new SimpleAttributeSet();
  StyleConstants.setIcon(attrs, getImage());
  p.addCaretListener(new CaretListener() {
    public void caretUpdate(CaretEvent e) {
      SwingUtilities.invokeLater(new Runnable() {
        public void run() {
          try {
            StyledDocument doc = (StyledDocument) p.getDocument();
            String text = doc.getText(0, p.getDocument().getLength());
            int index = text.indexOf(":)");
            int start = 0;
            while (index > -1) {
              Element el = doc.getCharacterElement(index);
              if (StyleConstants.getIcon(el.getAttributes()) == null) {
                doc.remove(index, 2);
                SimpleAttributeSet attrs = new SimpleAttributeSet();
                StyleConstants.setIcon(attrs, getImage());
  this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  this.setSize(400, 400);
  test11.show();

代码示例来源：origin: bobbylight/RSyntaxTextArea

g.setFont(font!=null ? font : textComponent.getFont());
Document doc = textComponent.getDocument();
rootElement = doc.getDefaultRootElement();
numDocLines = rootElement.getElementCount();		// The number of lines in our document.
currentDocLineNumber = 0;					// The line number of the document we're currently on.
int startingOffset = 0;						// Used when a line is so long it has to be wrapped.
  Element currentLine  = rootElement.getElement(currentDocLineNumber);
  int currentLineStart = currentLine.getStartOffset();
  int currentLineEnd   = currentLine.getEndOffset();
    doc.getText(currentLineStart+startingOffset, currentLineEnd-(currentLineStart+startingOffset),
          currentLineSeg);
  } catch (BadLocationException ble) {
          currentPos++;
          try {
            doc.getText(currentLineStart+startingOffset, currentPos, currentLineSeg);
          } catch (BadLocationException ble) {
            System.err.println(ble);

代码示例来源：origin: stackoverflow.com

public class Sample extends JFrame   {
  public Sample(){
    JEditorPane pane = new JEditorPane();
    pane.setContentType("text/html");
    pane.setText("<ol id='foo'><li>One</li><li>Two</li></ol>"); 
    HTMLDocument doc = (HTMLDocument) pane.getDocument();
    add(pane);

    //Get the ref of foo element
    Element ele=doc.getElement("foo");
    ListView view=new ListView(ele);
    System.out.println(ele.getElementCount());
    try{
       doc.insertBeforeEnd(ele.getElement(0), "<ul><li>Test");          
    }catch(Exception ex){}
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setSize(300,300);
    setVisible(true);
  }
}

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