From 15c24f0925159728dc39b9ac822e85425348f1f9 Mon Sep 17 00:00:00 2001
From: Brita Keller <brita@minres.com>
Date: Tue, 25 Jun 2019 22:15:13 +0200
Subject: [PATCH] Fixed #15 - no more ArrayOutOfBounds exception when deleting
 last stream

---
 .../e4/application/parts/WaveformViewer.java   | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java b/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java
index 56f947b..db74ba1 100644
--- a/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java
+++ b/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java
@@ -826,14 +826,26 @@ public class WaveformViewer implements IFileChangeListener, IPreferenceChangeLis
 		List<TrackEntry> streams = waveformPane.getStreamList();
 		ISelection sel = waveformPane.getSelection();
 		TrackEntry newSelection=null;
+		
 		if(sel instanceof IStructuredSelection && ((IStructuredSelection) sel).size()==2) {
 				Iterator<?> it = ((IStructuredSelection)sel).iterator();
 				it.next();
 				int idx = streams.indexOf(it.next());
-				if(idx==streams.size()-1)
-					newSelection=streams.get(idx-1);
-				else
+				
+				if(idx==streams.size()-1) {
+					//last stream gets deleted, no more selection
+					if(idx==0) {
+						newSelection=null;
+					}
+					//more than 1 stream left, last gets deleted, selection jumps to new last stream
+					else {
+						newSelection=streams.get(idx-1);
+					}
+				}
+				//more than 1 stream left, any stream but the last gets deleted, selection jumps to the next stream
+				else {
 					newSelection=streams.get(idx+1);
+				}
 		}
 		waveformPane.setSelection(new StructuredSelection());
 		streams.remove(trackEntry);