From 4297b49b4f9f66a75d98c0d5e326a471e94cf404 Mon Sep 17 00:00:00 2001
From: Kevin Lamonte <kevin.lamonte@gmail.com>
Date: Wed, 27 Dec 2017 18:36:33 -0500
Subject: [PATCH] #25 fix OOB on mouse down

---
 src/jexer/TEditorWidget.java    |  2 +-
 src/jexer/teditor/Document.java | 14 +++++++++-----
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/src/jexer/TEditorWidget.java b/src/jexer/TEditorWidget.java
index 5ab7a23..dcf5e9e 100644
--- a/src/jexer/TEditorWidget.java
+++ b/src/jexer/TEditorWidget.java
@@ -164,7 +164,7 @@ public class TEditorWidget extends TWidget {
 
             document.setLineNumber(newLine);
             setCursorY(mouse.getY());
-            if (newX > document.getCurrentLine().getDisplayLength()) {
+            if (newX >= document.getCurrentLine().getDisplayLength()) {
                 document.end();
                 alignCursor();
             } else {
diff --git a/src/jexer/teditor/Document.java b/src/jexer/teditor/Document.java
index c84c207..e1a28a0 100644
--- a/src/jexer/teditor/Document.java
+++ b/src/jexer/teditor/Document.java
@@ -185,7 +185,11 @@ public class Document {
      * @param cursor the new cursor position
      */
     public void setCursor(final int cursor) {
-        lines.get(lineNumber).setCursor(cursor);
+        if (cursor >= lines.get(lineNumber).getDisplayLength()) {
+            lines.get(lineNumber).end();
+        } else {
+            lines.get(lineNumber).setCursor(cursor);
+        }
     }
 
     /**
@@ -215,7 +219,7 @@ public class Document {
         if (lineNumber < lines.size() - 1) {
             int x = lines.get(lineNumber).getCursor();
             lineNumber++;
-            if (x > lines.get(lineNumber).getDisplayLength()) {
+            if (x >= lines.get(lineNumber).getDisplayLength()) {
                 lines.get(lineNumber).end();
             } else {
                 lines.get(lineNumber).setCursor(x);
@@ -239,7 +243,7 @@ public class Document {
             if (lineNumber > lines.size() - 1) {
                 lineNumber = lines.size() - 1;
             }
-            if (x > lines.get(lineNumber).getDisplayLength()) {
+            if (x >= lines.get(lineNumber).getDisplayLength()) {
                 lines.get(lineNumber).end();
             } else {
                 lines.get(lineNumber).setCursor(x);
@@ -258,7 +262,7 @@ public class Document {
         if (lineNumber > 0) {
             int x = lines.get(lineNumber).getCursor();
             lineNumber--;
-            if (x > lines.get(lineNumber).getDisplayLength()) {
+            if (x >= lines.get(lineNumber).getDisplayLength()) {
                 lines.get(lineNumber).end();
             } else {
                 lines.get(lineNumber).setCursor(x);
@@ -282,7 +286,7 @@ public class Document {
             if (lineNumber < 0) {
                 lineNumber = 0;
             }
-            if (x > lines.get(lineNumber).getDisplayLength()) {
+            if (x >= lines.get(lineNumber).getDisplayLength()) {
                 lines.get(lineNumber).end();
             } else {
                 lines.get(lineNumber).setCursor(x);
-- 
2.27.0