Added source for ByteEdit

src/org/fife/ui/rsyntaxtextarea/DefaultOccurrenceMarker.java

@@ -0,0 +1,112 @@
+/*
+ * 03/09/2013
+ *
+ * DefaultOccurrenceMarker - Marks occurrences of the current token for most
+ * languages.
+ *
+ * This library is distributed under a modified BSD license.  See the included
+ * RSyntaxTextArea.License.txt file for details.
+ */
+package org.fife.ui.rsyntaxtextarea;
+
+import javax.swing.text.BadLocationException;
+import javax.swing.text.Caret;
+
+import org.fife.ui.rtextarea.SmartHighlightPainter;
+
+
+/**
+ * The default implementation of {@link OccurrenceMarker}.  It goes through
+ * the document and marks all instances of the specified token.
+ *
+ * @author Robert Futrell
+ * @version 1.0
+ */
+class DefaultOccurrenceMarker implements OccurrenceMarker {
+
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public Token getTokenToMark(RSyntaxTextArea textArea) {
+
+		// Get the token at the caret position.
+		int line = textArea.getCaretLineNumber();
+		Token tokenList = textArea.getTokenListForLine(line);
+		Caret c = textArea.getCaret();
+		int dot = c.getDot();
+
+		Token t = RSyntaxUtilities.getTokenAtOffset(tokenList, dot);
+		if (t==null /* EOL */ || !isValidType(textArea, t) ||
+				RSyntaxUtilities.isNonWordChar(t)) {
+			// Try to the "left" of the caret.
+			dot--;
+			try {
+				if (dot>=textArea.getLineStartOffset(line)) {
+					t = RSyntaxUtilities.getTokenAtOffset(tokenList, dot);
+				}
+			} catch (BadLocationException ble) {
+				ble.printStackTrace(); // Never happens
+			}
+		}
+
+		return t;
+
+	}
+
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public boolean isValidType(RSyntaxTextArea textArea, Token t) {
+		return textArea.getMarkOccurrencesOfTokenType(t.getType());
+	}
+
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public void markOccurrences(RSyntaxDocument doc, Token t,
+			RSyntaxTextAreaHighlighter h, SmartHighlightPainter p) {
+		markOccurrencesOfToken(doc, t, h, p);
+	}
+
+
+	/**
+	 * Highlights all instances of tokens identical to <code>t</code> in the
+	 * specified document.
+	 *
+	 * @param doc The document.
+	 * @param t The document whose relevant occurrences should be marked.
+	 * @param h The highlighter to add the highlights to.
+	 * @param p The painter for the highlights.
+	 */
+	public static final void markOccurrencesOfToken(RSyntaxDocument doc,
+			Token t, RSyntaxTextAreaHighlighter h, SmartHighlightPainter p) {
+
+		char[] lexeme = t.getLexeme().toCharArray();
+		int type = t.getType();
+		int lineCount = doc.getDefaultRootElement().getElementCount();
+
+		for (int i=0; i<lineCount; i++) {
+			Token temp = doc.getTokenListForLine(i);
+			while (temp!=null && temp.isPaintable()) {
+				if (temp.is(type, lexeme)) {
+					try {
+						int end = temp.getEndOffset();
+						h.addMarkedOccurrenceHighlight(temp.getOffset(),end,p);
+					} catch (BadLocationException ble) {
+						ble.printStackTrace(); // Never happens
+					}
+				}
+				temp = temp.getNextToken();
+			}
+		}
+
+	}
+
+
+}