[Exmmt-commit] SF.net SVN: exmmt: [63] net.sourceforge.exmmt/trunk/src/java/net/sourceforge/exmmt/navigation/Focus.java

[<lgr...@us...>]

Revision: 63
Author:   lgrammel
Date:     2006-06-05 02:55:47 -0700 (Mon, 05 Jun 2006)
ViewCVS:  http://svn.sourceforge.net/exmmt/?rev=63&view=rev

Log Message:
-----------
#1500774 scenario "shopping list"

Modified Paths:
--------------
    net.sourceforge.exmmt/trunk/src/java/net/sourceforge/exmmt/navigation/Focus.java
Modified: net.sourceforge.exmmt/trunk/src/java/net/sourceforge/exmmt/navigation/Focus.java
===================================================================
--- net.sourceforge.exmmt/trunk/src/java/net/sourceforge/exmmt/navigation/Focus.java	2006-06-05 09:53:13 UTC (rev 62)
+++ net.sourceforge.exmmt/trunk/src/java/net/sourceforge/exmmt/navigation/Focus.java	2006-06-05 09:55:47 UTC (rev 63)
@@ -17,12 +17,12 @@
 import net.sourceforge.exmmt.builder.Composite;
 
 public class Focus {
-	
+
 	private Composite focusedElement;
 
 	public Focus(Composite root) {
 		assert root != null;
-		
+
 		this.focusedElement = root;
 	}
 
@@ -46,16 +46,16 @@
 		if (focusedElement.isRoot()) {
 			return;
 		}
-		
+
 		List<Composite> siblings = focusedElement.getParent().getChildren();
-		
+
 		int currentIndex = siblings.indexOf(focusedElement);
-		
+
 		assert currentIndex >= 0;
 		assert currentIndex <= siblings.size() - 1;
-		
+
 		int newIndex = currentIndex + 1;
-		
+
 		assert newIndex >= 1;
 		assert newIndex <= siblings.size();
 
@@ -65,8 +65,35 @@
 
 		assert newIndex >= 0;
 		assert newIndex <= siblings.size() - 1;
-		
+
 		focusedElement = siblings.get(newIndex);
 	}
 
+	public void moveToPreviousSibling() {
+		if (focusedElement.isRoot()) {
+			return;
+		}
+
+		List<Composite> siblings = focusedElement.getParent().getChildren();
+
+		int currentIndex = siblings.indexOf(focusedElement);
+
+		assert currentIndex >= 0;
+		assert currentIndex <= siblings.size() - 1;
+
+		int newIndex = currentIndex - 1;
+
+		assert newIndex >= -1;
+		assert newIndex <= siblings.size() - 2;
+
+		if (newIndex == -1) {
+			newIndex = siblings.size() - 1;
+		}
+
+		assert newIndex >= 0;
+		assert newIndex <= siblings.size() - 1;
+
+		focusedElement = siblings.get(newIndex);
+	}
+
 }
\ No newline at end of file


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