Java RSyntaxTextArea.getDocument方法代碼示例

import org.fife.ui.rsyntaxtextarea.RSyntaxTextArea; //導入方法依賴的package包/類
public void actionPerformed(ActionEvent e) {

			RSyntaxTextArea textArea = (RSyntaxTextArea)getTextComponent(e);
			RSyntaxDocument doc = (RSyntaxDocument)textArea.getDocument();
			Caret c = textArea.getCaret();

			int dot = c.getDot(); // Get before "<" insertion
			boolean selection = dot!=c.getMark(); // Me too
			textArea.replaceSelection(">");

			// Don't automatically complete a tag if there was a selection
			if (!selection && getAutoAddClosingTags()) {

				Token t = doc.getTokenListForLine(textArea.getCaretLineNumber());
				t = RSyntaxUtilities.getTokenAtOffset(t, dot);
				if (t!=null && t.isSingleChar(Token.MARKUP_TAG_DELIMITER, '>')) {
					String tagName = discoverTagName(doc, dot);
					if (tagName!=null) {
						textArea.replaceSelection("</" + tagName + ">");
						textArea.setCaretPosition(dot+1);
					}
				}

			}

		}
 

import org.fife.ui.rsyntaxtextarea.RSyntaxTextArea; //導入方法依賴的package包/類
/**
 * Invokes this code template.  The changes are made to the given text
 * area.
 *
 * @param textArea The text area to operate on.
 * @throws BadLocationException If something bad happens.
 */
public void invoke(RSyntaxTextArea textArea) throws BadLocationException {

	Caret c = textArea.getCaret();
	int dot = c.getDot();
	int mark = c.getMark();
	int p0 = Math.min(dot, mark);
	int p1 = Math.max(dot, mark);
	RSyntaxDocument doc = (RSyntaxDocument)textArea.getDocument();
	Element map = doc.getDefaultRootElement();

	int lineNum = map.getElementIndex(dot);
	Element line = map.getElement(lineNum);
	int start = line.getStartOffset();
	int end = line.getEndOffset()-1; // Why always "-1"?
	String s = textArea.getText(start,end-start);
	int len = s.length();

	// endWS is the end of the leading whitespace
	// of the current line.
	int endWS = 0;
	while (endWS<len && RSyntaxUtilities.isWhitespace(s.charAt(endWS))) {
		endWS++;
	}
	s = s.substring(0, endWS);
	p0 -= getID().length();
	String beforeText = getBeforeTextIndented(s);
	String afterText = getAfterTextIndented(s);
	doc.replace(p0,p1-p0, beforeText+afterText, null);
	textArea.setCaretPosition(p0+beforeText.length());

}
 

import org.fife.ui.rsyntaxtextarea.RSyntaxTextArea; //導入方法依賴的package包/類
/**
 * Invokes this code template. The changes are made to the given text area.
 * 
 * @param textArea
 *            The text area to operate on.
 * @throws BadLocationException
 *             If something bad happens.
 */
public void invoke(RSyntaxTextArea textArea) throws BadLocationException {

    Caret c = textArea.getCaret();
    int dot = c.getDot();
    int mark = c.getMark();
    int p0 = Math.min(dot, mark);
    int p1 = Math.max(dot, mark);
    RSyntaxDocument doc = (RSyntaxDocument) textArea.getDocument();
    Element map = doc.getDefaultRootElement();

    int lineNum = map.getElementIndex(dot);
    Element line = map.getElement(lineNum);
    int start = line.getStartOffset();
    int end = line.getEndOffset() - 1; // Why always "-1"?
    String s = textArea.getText(start, end - start);
    int len = s.length();

    // endWS is the end of the leading whitespace
    // of the current line.
    int endWS = 0;
    while (endWS < len && RSyntaxUtilities.isWhitespace(s.charAt(endWS))) {
        endWS++;
    }
    s = s.substring(0, endWS);
    p0 -= getID().length();
    String beforeText = getBeforeTextIndented(s);
    String afterText = getAfterTextIndented(s);
    doc.replace(p0, p1 - p0, beforeText + afterText, null);
    textArea.setCaretPosition(p0 + beforeText.length());

}
 

import org.fife.ui.rsyntaxtextarea.RSyntaxTextArea; //導入方法依賴的package包/類
/**
 * Checks whether the user is typing a completion for a String member after
 * a String literal.
 *
 * @param comp The text component.
 * @param alreadyEntered The text already entered.
 * @param cu The compilation unit being parsed.
 * @param set The set to add possible completions to.
 * @return Whether the user is indeed typing a completion for a String
 *         literal member.
 */
private boolean checkStringLiteralMember(JTextComponent comp,
										String alreadyEntered,
										CompilationUnit cu, Set set) {

	boolean stringLiteralMember = false;

	int offs = comp.getCaretPosition() - alreadyEntered.length() - 1;
	if (offs>1) {
		RSyntaxTextArea textArea = (RSyntaxTextArea)comp;
		RSyntaxDocument doc = (RSyntaxDocument)textArea.getDocument();
		try {
			//System.out.println(doc.charAt(offs) + ", " + doc.charAt(offs+1));
			if (doc.charAt(offs)=='"' && doc.charAt(offs+1)=='.') {
				int curLine = textArea.getLineOfOffset(offs);
				Token list = textArea.getTokenListForLine(curLine);
				Token prevToken = RSyntaxUtilities.getTokenAtOffset(list, offs);
				if (prevToken!=null &&
						prevToken.getType()==Token.LITERAL_STRING_DOUBLE_QUOTE) {
					ClassFile cf = getClassFileFor(cu, "java.lang.String");
					addCompletionsForExtendedClass(set, cu, cf,
												cu.getPackageName(), null);
					stringLiteralMember = true;
				}
				else {
					System.out.println(prevToken);
				}
			}
		} catch (BadLocationException ble) { // Never happens
			ble.printStackTrace();
		}
	}

	return stringLiteralMember;

}
 

import org.fife.ui.rsyntaxtextarea.RSyntaxTextArea; //導入方法依賴的package包/類
public TokenScanner(RSyntaxTextArea textArea) {
	this((RSyntaxDocument)textArea.getDocument());
}
 

import org.fife.ui.rsyntaxtextarea.RSyntaxTextArea; //導入方法依賴的package包/類
/**
 * Checks if the token at the specified offset is possibly a "click-able"
 * region.
 *
 * @param textArea The text area.
 * @param offs The offset, presumably at the mouse position.
 * @return A result object.
 */
private Token checkForVarDereference(RSyntaxTextArea textArea, int offs) {

	if (offs>=0) {

		RSyntaxDocument doc = (RSyntaxDocument)textArea.getDocument();

		try {

			int line = textArea.getLineOfOffset(offs);
			Token first = textArea.getTokenListForLine(line);
			Token prev = null;
			Token prev2 = null;

			for (Token t=first; t!=null && t.isPaintable(); t=t.getNextToken()) {
				if (t.containsPosition(offs)) {
					if (prev==null) {
						prev = RSyntaxUtilities.getPreviousImportantToken(
								doc, line-1);
					}
					break;
				}
				else if (!t.isCommentOrWhitespace()) {
					prev2 = prev;
					prev = t;
				}
			}

			// Sigh, if only Tokens could be a doubly-linked list...
			// Scan back again to get what variable is dereferenced.
			if (prev!=null && prev.is(Token.OPERATOR, ARROW)) {

				// Common case - user had it all on one line, e.g.
				// "Link->PressA"
				if (prev2!=null) {
					//System.out.println("Common case!");
					return prev2;
				}

				// Uncommon case - user had the "->" on one line and e.g.
				// "PressA" on another line.
				int arrowOffs = prev.getOffset();
				line = textArea.getLineOfOffset(arrowOffs);
				first = textArea.getTokenListForLine(line);
				prev = null;

				for (Token t=first; t!=null && t.isPaintable(); t=t.getNextToken()) {
					if (t.getOffset()==arrowOffs) {
						if (prev==null) {
							prev = RSyntaxUtilities.getPreviousImportantToken(
									doc, line-1);
						}
						if (prev!=null) {
							return prev;
						}
					}
					else if (!t.isCommentOrWhitespace()) {
						prev = t;
					}
				}

			}

		} catch (BadLocationException ble) {
			ble.printStackTrace(); // Never happens
		}

	}

	return null;

}