javax.swing.text.Element.getElementIndex()方法的使用及代码示例

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.getElementIndex()方法的一些代码示例，展示了Element.getElementIndex()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.getElementIndex()方法的具体详情如下：
包路径：javax.swing.text.Element
类名称：Element
方法名：getElementIndex

Element.getElementIndex介绍

暂无

代码示例

代码示例来源：origin: skylot/jadx

  1. private boolean isCurrentLine(int rowStartOffset) {
  2.   int caretPosition = codeArea.getCaretPosition();
  3.   Element root = codeArea.getDocument().getDefaultRootElement();
  4.   return root.getElementIndex(rowStartOffset) == root.getElementIndex(caretPosition);
  5. }

代码示例来源：origin: SonarSource/sonarqube

  1. private boolean isCurrentLine(int rowStartOffset) {
  2.  int caretPosition = component.getCaretPosition();
  3.  Element root = component.getDocument().getDefaultRootElement();
  4.  return root.getElementIndex(rowStartOffset) == root.getElementIndex(caretPosition);
  5. }

代码示例来源：origin: SonarSource/sonarqube

  1. protected String getTextLineNumber(int rowStartOffset) {
  2.  Element root = component.getDocument().getDefaultRootElement();
  3.  int index = root.getElementIndex(rowStartOffset);
  4.  Element line = root.getElement(index);
  5.  if (line.getStartOffset() == rowStartOffset)
  6.   return String.valueOf(index + 1);
  7.  else
  8.   return "";
  9. }

代码示例来源：origin: skylot/jadx

  1. @Nullable
  2. protected String getTextLineNumber(int rowStartOffset) {
  3.   Element root = codeArea.getDocument().getDefaultRootElement();
  4.   int index = root.getElementIndex(rowStartOffset);
  5.   Element line = root.getElement(index);
  6.   if (line.getStartOffset() != rowStartOffset) {
  7.     return null;
  8.   }
  9.   int lineNumber = index + 1;
  10.   if (useSourceLines) {
  11.     Integer sourceLine = codeArea.getSourceLine(lineNumber);
  12.     if (sourceLine == null) {
  13.       return null;
  14.     }
  15.     return String.valueOf(sourceLine);
  16.   }
  17.   return String.valueOf(lineNumber);
  18. }

代码示例来源：origin: SonarSource/sonarqube

  1. @Override
  2. public void caretUpdate(CaretEvent e) {
  3.  // Get the line the caret is positioned on
  4.  int caretPosition = component.getCaretPosition();
  5.  Element root = component.getDocument().getDefaultRootElement();
  6.  int currentLine = root.getElementIndex(caretPosition);
  7.  // Need to repaint so the correct line number can be highlighted
  8.  if (lastLine != currentLine) {
  9.   repaint();
  10.   lastLine = currentLine;
  11.  }
  12. }

代码示例来源：origin: skylot/jadx

  1. @Override
  2. public void caretUpdate(CaretEvent e) {
  3.   int caretPosition = codeArea.getCaretPosition();
  4.   Element root = codeArea.getDocument().getDefaultRootElement();
  5.   int currentLine = root.getElementIndex(caretPosition);
  6.   if (lastLine != currentLine) {
  7.     repaint();
  8.     lastLine = currentLine;
  9.   }
  10. }

代码示例来源：origin: skylot/jadx

  1. int index = root.getElementIndex(rowStartOffset);
  2. Element line = root.getElement(index);
  3. for (int i = 0; i < line.getElementCount(); i++) {

代码示例来源：origin: SonarSource/sonarqube

  1. int index = root.getElementIndex(rowStartOffset);
  2. Element line = root.getElement(index);

代码示例来源：origin: groovy/groovy-core

  1. @Override
  2.   public void paintComponent(Graphics g) {
  3.     super.paintComponent(g);
  4.     // starting position in document
  5.     int start = textEditor.viewToModel(getViewport().getViewPosition());
  6.     // end position in document
  7.     int end = textEditor.viewToModel(new Point(10,
  8.         getViewport().getViewPosition().y +
  9.             (int) textEditor.getVisibleRect().getHeight())
  10.     );
  11.     // translate offsets to lines
  12.     Document doc = textEditor.getDocument();
  13.     int startline = doc.getDefaultRootElement().getElementIndex(start) + 1;
  14.     int endline = doc.getDefaultRootElement().getElementIndex(end) + 1;
  15.     Font f = textEditor.getFont();
  16.     int fontHeight = g.getFontMetrics(f).getHeight();
  17.     int fontDesc = g.getFontMetrics(f).getDescent();
  18.     int startingY = -1;
  19.     try {
  20.       startingY = textEditor.modelToView(start).y + fontHeight - fontDesc;
  21.     } catch (BadLocationException e1) {
  22.       System.err.println(e1.getMessage());
  23.     }
  24.     g.setFont(f);
  25.     for (int line = startline, y = startingY; line <= endline; y += fontHeight, line++) {
  26.       String lineNumber = StringGroovyMethods.padLeft(Integer.toString(line), 4, " ");
  27.       g.drawString(lineNumber, 0, y);
  28.     }
  29.   }
  30. }

代码示例来源：origin: groovy/groovy-core

  1. public int findTabLocation(int offset) {
  2.     // find first {
  3.     boolean cont = true;
  4.     while (offset > -1 && cont) {
  5.       Element el = doc.getCharacterElement(offset);
  6.       Object color =
  7.           el.getAttributes().getAttribute(StyleConstants.Foreground);
  8.       if (!COMMENT_COLOR.equals(color)) {
  9.         cont = segment.array[offset] != '{' &&
  10.             segment.array[offset] != '}';
  11.       }
  12.       offset -= cont ? 1 : 0;
  13.     }
  14.     if (offset > -1 && segment.array[offset] == '{') {
  15.       while (offset > -1 &&
  16.           !Character.isWhitespace(segment.array[offset--])) {
  17.       }
  18.     }
  19.     int index = offset < 0 || segment.array[offset] == '}' ? -4 : 0;
  20.     if (offset > -1) {
  21.       Element top = doc.getDefaultRootElement();
  22.       offset = top.getElement(top.getElementIndex(offset)).getStartOffset();
  23.       while (Character.isWhitespace(segment.array[offset++])) {
  24.         index++;
  25.       }
  26.     }
  27.     return index;
  28.   }
  29. }

代码示例来源：origin: bobbylight/RSyntaxTextArea

  1. @Override
  2. public int yForLineContaining(Rectangle alloc, int offs)
  3.             throws BadLocationException {
  4.   Element map = getElement();
  5.   int line = map.getElementIndex(offs);
  6.   return yForLine(alloc, line);
  7. }

代码示例来源：origin: ron190/jsql-injection

  1. /**
  2.  * Get index of line for current offset (generally cursor position).
  3.  * @param offset Position on the line
  4.  * @return Index of the line
  5.  * @throws BadLocationException
  6.  */
  7. public int getLineOfOffset(int offset) throws BadLocationException {
  8.   String errorMsg = "Can't translate offset to line";
  9.   Document doc = this.getDocument();
  10.   if (offset < 0) {
  11.     throw new BadLocationException(errorMsg, -1);
  12.   } else if (offset > doc.getLength()) {
  13.     throw new BadLocationException(errorMsg, doc.getLength() + 1);
  14.   } else {
  15.     Element map = doc.getDefaultRootElement();
  16.     return map.getElementIndex(offset);
  17.   }
  18. }

代码示例来源：origin: bobbylight/RSyntaxTextArea

  1. /**
  2.  * Returns the token at the specified offset.
  3.  *
  4.  * @param doc The document.
  5.  * @param offset The offset of the token.
  6.  * @return The token, or <code>null</code> if the offset is not valid.
  7.  * @see #getTokenAtOffset(RSyntaxTextArea, int)
  8.  * @see #getTokenAtOffset(Token, int)
  9.  */
  10. public static Token getTokenAtOffset(RSyntaxDocument doc,
  11.     int offset) {
  12.   Element root = doc.getDefaultRootElement();
  13.   int lineIndex = root.getElementIndex(offset);
  14.   Token t = doc.getTokenListForLine(lineIndex);
  15.   return RSyntaxUtilities.getTokenAtOffset(t, offset);
  16. }

代码示例来源：origin: bobbylight/RSyntaxTextArea

  1. private static Element getLineElem(Document d, int offs) {
  2.   Element map = d.getDefaultRootElement();
  3.   int index = map.getElementIndex(offs);
  4.   Element elem = map.getElement(index);
  5.   if ((offs>=elem.getStartOffset()) && (offs<elem.getEndOffset())) {
  6.     return elem;
  7.   }
  8.   return null;
  9. }

代码示例来源：origin: bobbylight/RSyntaxTextArea

  1. @Override
  2. protected int getWordStart(RTextArea textArea, int offs)
  3.     throws BadLocationException {
  4.   RSyntaxDocument doc = (RSyntaxDocument)textArea.getDocument();
  5.   Element root = doc.getDefaultRootElement();
  6.   int line = root.getElementIndex(offs);
  7.   Element elem = root.getElement(line);
  8.   return getWordStartImpl(doc, elem, offs);
  9. }

代码示例来源：origin: bobbylight/RSyntaxTextArea

  1. @Override
  2. public void insertUpdate(DocumentEvent e) {
  3.   // Adding text containing a newline to the visible line of a folded
  4.   // Fold causes that Fold to unfold.  Check only start offset of
  5.   // insertion since that's the line that was "modified".
  6.   int startOffs = e.getOffset();
  7.   int endOffs = startOffs + e.getLength();
  8.   Document doc = e.getDocument();
  9.   Element root = doc.getDefaultRootElement();
  10.   int startLine = root.getElementIndex(startOffs);
  11.   int endLine = root.getElementIndex(endOffs);
  12.   if (startLine!=endLine) { // Inserted text covering > 1 line...
  13.     Fold fold = getFoldForLine(startLine);
  14.     if (fold!=null && fold.isCollapsed()) {
  15.       fold.toggleCollapsedState();
  16.     }
  17.   }
  18. }

代码示例来源：origin: bobbylight/RSyntaxTextArea

  1. /**
  2.  * Returns the leading whitespace of a specific line in a document.
  3.  *
  4.  * @param doc The document.
  5.  * @param offs The offset whose line to get the leading whitespace for.
  6.  * @return The leading whitespace.
  7.  * @throws BadLocationException If <code>offs</code> is not a valid offset
  8.  *         in the document.
  9.  * @see #getLeadingWhitespace(String)
  10.  */
  11. public static String getLeadingWhitespace(Document doc, int offs)
  12.                 throws BadLocationException {
  13.   Element root = doc.getDefaultRootElement();
  14.   int line = root.getElementIndex(offs);
  15.   Element elem = root.getElement(line);
  16.   int startOffs = elem.getStartOffset();
  17.   int endOffs = elem.getEndOffset() - 1;
  18.   String text = doc.getText(startOffs, endOffs-startOffs);
  19.   return getLeadingWhitespace(text);
  20. }

代码示例来源：origin: bobbylight/RSyntaxTextArea

  1. /**
  2.  * Returns whether the specified offset is "inside" the fold.  This method
  3.  * returns <code>true</code> if the offset is greater than the fold start
  4.  * offset, and no further than the last offset of the last folded line.
  5.  *
  6.  * @param offs The offset to check.
  7.  * @return Whether the offset is "inside" the fold.
  8.  * @see #containsLine(int)
  9.  */
  10. public boolean containsOffset(int offs) {
  11.   boolean contained = false;
  12.   if (offs>getStartOffset()) {
  13.     // Use Elements to avoid BadLocationExceptions
  14.     Element root = textArea.getDocument().getDefaultRootElement();
  15.     int line = root.getElementIndex(offs);
  16.     contained = line<=getEndLine();
  17.   }
  18.   return contained;
  19. }

代码示例来源：origin: bobbylight/RSyntaxTextArea

  1. @Override
  2. protected int getWordEnd(RTextArea textArea, int offs)
  3.     throws BadLocationException {
  4.   RSyntaxDocument doc = (RSyntaxDocument)textArea.getDocument();
  5.   Element root = doc.getDefaultRootElement();
  6.   int line = root.getElementIndex(offs);
  7.   Element elem = root.getElement(line);
  8.   int end = elem.getEndOffset() - 1;
  9.   int wordEnd = offs;
  10.   while (wordEnd <= end) {
  11.     if (!isIdentifierChar(doc.charAt(wordEnd))) {
  12.       break;
  13.     }
  14.     wordEnd++;
  15.   }
  16.   return wordEnd;
  17. }

代码示例来源：origin: bobbylight/RSyntaxTextArea

  1. @Override
  2. public void actionPerformedImpl(ActionEvent e, RTextArea textArea) {
  3.   try {
  4.     // We use the elements instead of calling getLineOfOffset(),
  5.     // etc. to speed things up just a tad (i.e. micro-optimize).
  6.     Document document = textArea.getDocument();
  7.     int caretPosition = textArea.getCaretPosition();
  8.     Element map = document.getDefaultRootElement();
  9.     int currentLineNum = map.getElementIndex(caretPosition);
  10.     Element currentLineElement = map.getElement(currentLineNum);
  11.     // Always take -1 as we don't want to remove the newline.
  12.     int currentLineEnd = currentLineElement.getEndOffset()-1;
  13.     if (caretPosition<currentLineEnd) {
  14.       document.remove(caretPosition,
  15.               currentLineEnd-caretPosition);
  16.     }
  17.   } catch (BadLocationException ble) {
  18.     ble.printStackTrace();
  19.   }
  20. }

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