2005-10-04 Anthony Balkissoon <abalkiss@redhat.com>

	* javax/swing/text/AbstractDocument.java:
	(insertString): If inserting a string into the Content returns an
	UndoableEdit, then add an ElementEdit to the DocumentEvent before
	firing.
	(remove): Don't fire a removeUpdate unless some content was actually
	removed.
	* javax/swing/text/GapContent.java:
	(UndoInsertString): New class to implement UndoableEdit functions.
	(insertString): Return an UndoableEdit instead of null.  Also use
	locally calculated length of String rather than calculating again.
	* javax/swing/text/JTextComponent.java:
	(setText): If the Document is an AbstractDocument this should pass
	through AbstractDocument.replace rather than calling remove and insert.
	* javax/swing/text/PlainView.java:
	(determineMaxLength): Keep track of which line was the longest as well
	as the length of it.  We'll need this to know when the longest line is
	removed and we need to redetermine the longest line.

1 files changed, 8 insertions, 1 deletions

diff --git a/javax/swing/text/PlainView.java b/javax/swing/text/PlainView.java
index 75450b03a..5ae1dfa61 100644
--- a/javax/swing/text/PlainView.java
+++ b/javax/swing/text/PlainView.java
@@ -62,6 +62,9 @@ public class PlainView extends View
   /** The length of the longest line in the Document **/
   float maxLineLength = -1;
   
+  /** The longest line in the Document **/
+  Element longestLine = null;
+  
   protected FontMetrics metrics;
 
   public PlainView(Element elem)
@@ -237,7 +240,11 @@ public class PlainView extends View
           {
           }
         int width = metrics.charsWidth(seg.array, seg.offset, seg.count);
-        span = Math.max(span, width);
+        if (width > span)
+          {
+            longestLine = child;
+            span = width;
+          }
       }
     maxLineLength = span;
     return maxLineLength;