[ jEdit-commits ] SF.net SVN: jedit: [8997] jEdit/trunk/org/gjt/sp/jedit/textarea/FirstLine. java

[<kp...@us...>]

Revision: 8997
          http://svn.sourceforge.net/jedit/?rev=8997&view=rev
Author:   kpouer
Date:     2007-02-20 14:26:00 -0800 (Tue, 20 Feb 2007)

Log Message:
-----------
comment & logs

Modified Paths:
--------------
    jEdit/trunk/org/gjt/sp/jedit/textarea/FirstLine.java

Modified: jEdit/trunk/org/gjt/sp/jedit/textarea/FirstLine.java
===================================================================
--- jEdit/trunk/org/gjt/sp/jedit/textarea/FirstLine.java	2007-02-20 22:24:52 UTC (rev 8996)
+++ jEdit/trunk/org/gjt/sp/jedit/textarea/FirstLine.java	2007-02-20 22:26:00 UTC (rev 8997)
@@ -292,16 +292,19 @@
 	void scrollUp(int amount)
 	{
 		if(Debug.SCROLL_DEBUG)
-			Log.log(Log.DEBUG,this,"scrollUp()");
+			Log.log(Log.DEBUG,this,"scrollUp() before:" + this);
 
 		ensurePhysicalLineIsVisible();
 
 		if(amount <= skew)
 		{
+			// the amount is less than the skew, so we stay in the same like, just going
+			// upper
 			skew -= amount;
 		}
 		else
 		{
+			// moving to the first screen line of the current physical line
 			amount -= skew;
 			skew = 0;
 
@@ -310,6 +313,7 @@
 				int prevLine = displayManager.getPrevVisibleLine(physicalLine);
 				if(prevLine == -1)
 					break;
+				// moving to the previous visible physical line
 				physicalLine = prevLine;
 
 				int screenLines = displayManager.getScreenLineCount(physicalLine);
@@ -324,6 +328,8 @@
 			}
 		}
 
+		if(Debug.SCROLL_DEBUG)
+			Log.log(Log.DEBUG,this,"scrollUp() after:" + this);
 		callChanged = true;
 	} //}}}
 


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