From 8e5ff318106e700e28abd14a0eb1337d3a44c109 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thierry=20G=C3=B6ckel?= <thierry.goeckel@iqser.com>
Date: Tue, 29 Sep 2020 15:10:36 +0200
Subject: [PATCH] Fix annotating single letter entities

---
 .../service/AnnotationHighlightService.java   | 26 +++++++++++--------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/redaction-service-v1/redaction-service-server-v1/src/main/java/com/iqser/red/service/redaction/v1/server/visualization/service/AnnotationHighlightService.java b/redaction-service-v1/redaction-service-server-v1/src/main/java/com/iqser/red/service/redaction/v1/server/visualization/service/AnnotationHighlightService.java
index bde4c725..630139d3 100644
--- a/redaction-service-v1/redaction-service-server-v1/src/main/java/com/iqser/red/service/redaction/v1/server/visualization/service/AnnotationHighlightService.java
+++ b/redaction-service-v1/redaction-service-server-v1/src/main/java/com/iqser/red/service/redaction/v1/server/visualization/service/AnnotationHighlightService.java
@@ -130,18 +130,22 @@ public class AnnotationHighlightService {
     private List<Rectangle> getRectanglesPerLine(List<TextPosition> textPositions, int page) {
 
         List<Rectangle> rectangles = new ArrayList<>();
-        float y = textPositions.get(0).getYDirAdj();
-        int startIndex = 0;
-        for (int i = 1; i < textPositions.size(); i++) {
-            float yDirAdj = textPositions.get(i).getYDirAdj();
-            if (yDirAdj != y) {
-                rectangles.add(new TextPositionSequence(textPositions.subList(startIndex, i), page).getRectangle());
-                y = yDirAdj;
-                startIndex = i;
+        if (textPositions.size() == 1) {
+            rectangles.add(new TextPositionSequence(textPositions, page).getRectangle());
+        } else {
+            float y = textPositions.get(0).getYDirAdj();
+            int startIndex = 0;
+            for (int i = 1; i < textPositions.size(); i++) {
+                float yDirAdj = textPositions.get(i).getYDirAdj();
+                if (yDirAdj != y) {
+                    rectangles.add(new TextPositionSequence(textPositions.subList(startIndex, i), page).getRectangle());
+                    y = yDirAdj;
+                    startIndex = i;
+                }
+            }
+            if (startIndex != textPositions.size() - 1) {
+                rectangles.add(new TextPositionSequence(textPositions.subList(startIndex, textPositions.size()), page).getRectangle());
             }
-        }
-        if (startIndex != textPositions.size() - 1) {
-            rectangles.add(new TextPositionSequence(textPositions.subList(startIndex, textPositions.size()), page).getRectangle());
         }
 
         return rectangles;