[binutils-gdb] gdb/tui: make m_horizontal_offset private

[Andrew Burgess <aburgess@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=9bea9aa7d29330783541861d7498d51fbb0002c7

commit 9bea9aa7d29330783541861d7498d51fbb0002c7
Author: Andrew Burgess <aburgess@redhat.com>
Date:   Wed Jan 4 17:07:47 2023 +0000

    gdb/tui: make m_horizontal_offset private
    
    I noticed that tui_source_window_base::m_horizontal_offset was
    protected, but could be made private, so lets do that.
    
    This makes more sense in the context of a later commit where I plan to
    add another member variable that is similar to m_horizontal_offset.
    The new member variable could also be private.
    
    So I had to choose, place the new member variable next to
    m_horizontal_offset making it protected, but grouping similar
    variables together, or make m_horizontal_offset private, and then add
    the new variable as private too.
    
    I chose to make m_horizontal_offset private, which is this commit.
    
    There should be no user visible changes after this commit.

Diff:
---
 gdb/tui/tui-winsource.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/gdb/tui/tui-winsource.h b/gdb/tui/tui-winsource.h
index 7d6d64d35c4..bf0ca96c09b 100644
--- a/gdb/tui/tui-winsource.h
+++ b/gdb/tui/tui-winsource.h
@@ -124,8 +124,7 @@ protected:
   /* Redraw the complete line of a source or disassembly window.  */
   void show_source_line (int lineno);
 
-  /* Used for horizontal scroll.  */
-  int m_horizontal_offset = 0;
+  /* Where to start generating content from.  */
   struct tui_line_or_address m_start_line_or_addr;
 
   /* Architecture associated with code at this location.  */
@@ -179,6 +178,9 @@ public:
 
 private:
 
+  /* Used for horizontal scroll.  */
+  int m_horizontal_offset = 0;
+
   void show_source_content ();
 
   /* Called when the user "set style enabled" setting is changed.  */