From 56614cde906eda5b24bc77dbee298cfa39cbecfb Mon Sep 17 00:00:00 2001
From: Andreas Abraham <andreas.abraham@egiz.gv.at>
Date: Mon, 12 Jul 2021 14:22:28 +0200
Subject: page selection range limited

---
 .../java/at/asit/pdfover/gui/composites/PositioningComposite.java  | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/PositioningComposite.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/PositioningComposite.java
index 82a5a7a9..77b8c7c3 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/PositioningComposite.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/PositioningComposite.java
@@ -326,7 +326,12 @@ public class PositioningComposite extends StateComposite {
 		@Override
 		public void widgetSelected(SelectionEvent e) {
 			System.out.println("selection: " + PositioningComposite.this.scrollbar.getSelection());
-			PositioningComposite.this.showPage(PositioningComposite.this.scrollbar.getSelection());
+			int selection = PositioningComposite.this.scrollbar.getSelection();
+			if (selection < 0) {
+				selection = 0;
+				System.out.println("corrected selecttion to: " + selection);
+			}
+			PositioningComposite.this.showPage(selection);
 		}
 	};
 
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