fix highlighting for selections

bigtext.py

@@ -1,9 +1,7 @@
 import math
 import os
-import re
 import time
-from typing import Optional, List, Callable
-import PyQt6.QtGui
+from typing import Callable
 from PyQt6 import QtGui
 
 from PyQt6.QtCore import *
@@ -14,20 +12,17 @@ from PyQt6.QtWidgets import *
 import constants
 from ScaledScrollBar import ScaledScrollBar
 from conversion import humanbytes
-from highlight import Highlight
-from highlight_regex import HighlightRegex
 from highlight_selection import HighlightSelection
 from highlighted_range import HighlightedRange
 from highlightingdialog import HighlightingDialog
-from line import Line
 from logFileModel import LogFileModel
-import re
+
 
 from ravenui import RavenUI
 from settings import Settings
 from watchdog.observers import Observer
 from watchdog.events import FileSystemEventHandler
-import threading
+
 
 
 class FileObserver(FileSystemEventHandler):
@@ -310,12 +305,12 @@ class InnerBigText(QWidget):
             column_in_line = self.x_pos_to_column(e.pos().x()) + self._left_offset
             column_in_line = min(column_in_line, line.length())  # x was behind the last column of this line
             char_in_line = line.column_to_char(column_in_line)
-            # print("%s in line %s" % (char_in_line, line_number))
+            # print("%s in line %s lcolumn_in_line=%s" % (char_in_line, line_number, column_in_line))
             byte_in_line = line.char_index_to_byte(char_in_line)
-            current_byte = line.byte_offset() + byte_in_line - 1
+            current_byte = line.byte_offset() + byte_in_line
             # print("%s + %s = %s" % (line.byte_offset(), char_in_line, current_byte))
         else:
-            current_byte = self.model.byte_count() - 1
+            current_byte = self.model.byte_count()
         return current_byte
 
     def _has_selection(self):