Improved Tooltip for ComponentEditParts.

refs 2571

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/utils/JavaUtils.java

@@ -20,13 +20,15 @@ package org.fortiss.tooling.kernel.utils;
 import java.util.ArrayList;
 import java.util.List;
 
+import org.apache.commons.lang.WordUtils;
+
 /**
  * Class containing mixed useful methods.
  * 
  * @author doebber
  * @author $Author$
  * @version $Rev$
- * @ConQAT.Rating GREEN Hash: 0AEE36671E84E87EA4BFDB32EC21DAC4
+ * @ConQAT.Rating YELLOW Hash: 655690F20BC3825195BAE4BBF9DBE2FA
  */
 public class JavaUtils {
 
@@ -59,4 +61,30 @@ public class JavaUtils {
 	public static <S, T extends S> List<T> convertList(Class<T> targetClass, List<S> sourceList) {
 		return (List<T>)(List<?>)sourceList;
 	}
+
+	/**
+	 * Wraps long lines in 'str' after 'lineWidth' characters.
+	 * - Words (even long words) will NOT be wrapped.
+	 * - Leading whitespace characters in a line are trimmed.
+	 * 
+	 * @param str
+	 *            The {@link String} to be mapped.
+	 * @param lineWidth
+	 *            The number of characters, after which to wrap the line.
+	 * 
+	 * @return The line wrapped String.
+	 */
+	public static String wrapLines(String str, int lineWidth) {
+		StringBuilder buffer = new StringBuilder();
+
+		String delim = "";
+		for(String line : str.trim().split("\n")) {
+			buffer.append(delim);
+			delim = "\n";
+			// WordUtils.wrap(...) wraps the single lines.
+			buffer.append(WordUtils.wrap(line, lineWidth, "\n", true));
+		}
+
+		return buffer.toString();
+	}
 }