16-column HEX view in wide monitor

[xintrea]

In the current versions of MC, there is no setting to show the HEX viewer in the traditional 16-column form. The number of columns is adjusted to the width of the console. As a result, it is very inconvenient to calculate the byte addresses in the file being viewed.

It would be nice to add a setting that will allow you to include the traditional width of 16 columns. The setting can be made in the form of a number so that the user can write both 8 and 24 and 32 columns, as it will be more convenient for him.

The ready-made change is already in the form of a diff file: ​https://pastebin.com/NUKwveMZ

The appearance of the MC can be viewed in the article (RU) at the link: ​https://webhamster.ru/site/page/index/main/news/689

[zaytsev]

Copying the patch from the pastebin:

diff --git a/src/editor/editoptions.c b/src/editor/editoptions.c
index 11fd79caa..ffdc13b30 100644
--- a/src/editor/editoptions.c
+++ b/src/editor/editoptions.c
@@ -117,8 +117,8 @@ edit_reload_syntax (void *data, void *user_data)
 void
 edit_options_dialog (WDialog * h)
 {
-    char wrap_length[16], tab_spacing[16];
-    char *p, *q;
+    char wrap_length[16], tab_spacing[16], bytes_per_line[16];
+    char *p, *q, *r;
     int wrap_mode = 0;
     gboolean old_syntax_hl;
 
@@ -134,6 +134,7 @@ edit_options_dialog (WDialog * h)
 
     g_snprintf (wrap_length, sizeof (wrap_length), "%d", option_word_wrap_line_length);
     g_snprintf (tab_spacing, sizeof (tab_spacing), "%d", option_tab_spacing);
+    g_snprintf (bytes_per_line, sizeof (bytes_per_line), "%d", option_bytes_per_line);
 
     if (option_auto_para_formatting)
         wrap_mode = 1;
@@ -177,6 +178,8 @@ edit_options_dialog (WDialog * h)
                     QUICK_CHECKBOX (N_("&Group undo"), &option_group_undo, NULL),
                     QUICK_LABELED_INPUT (N_("Word wrap line length:"), input_label_left, wrap_length,
                                          "edit-word-wrap", &p, NULL, FALSE, FALSE, INPUT_COMPLETE_NONE),
+                    QUICK_LABELED_INPUT (N_("Hex viewer bytes per line:"), input_label_left, bytes_per_line,
+                                         "view-bytes-per-line", &r, NULL, FALSE, FALSE, INPUT_COMPLETE_NONE),
                 QUICK_STOP_GROUPBOX,
             QUICK_STOP_COLUMNS,
             QUICK_BUTTONS_OK_CANCEL,
@@ -215,6 +218,14 @@ edit_options_dialog (WDialog * h)
         g_free (q);
     }
 
+    if (r != NULL)
+    {
+        option_bytes_per_line = atoi (r);
+        if (option_bytes_per_line <= 0)
+            option_bytes_per_line = -1;
+        g_free (r);
+    }
+
     if (wrap_mode == 1)
     {
         option_auto_para_formatting = TRUE;
diff --git a/src/setup.c b/src/setup.c
index 085b1d15b..fc761a7c4 100644
--- a/src/setup.c
+++ b/src/setup.c
@@ -122,6 +122,9 @@ gboolean copymove_persistent_attr = TRUE;
 /* Tab size */
 int option_tab_spacing = DEFAULT_TAB_SPACING;
 
+/* Hex viewer bytes per line (0 to disable) */
+int option_bytes_per_line = 0;
+
 /* Ugly hack to allow panel_save_setup to work as a place holder for */
 /* default panel values */
 int saving_setup;
@@ -393,6 +396,7 @@ static const struct
 #ifdef USE_INTERNAL_EDIT
     { "editor_word_wrap_line_length", &option_word_wrap_line_length },
     { "editor_option_save_mode", &option_save_mode },
+    { "viewer_bytes_per_line", &option_bytes_per_line },
 #endif /* USE_INTERNAL_EDIT */
     { NULL, NULL }
 };
@@ -533,6 +537,8 @@ load_config (void)
 #ifdef USE_INTERNAL_EDIT
     if (option_word_wrap_line_length <= 0)
         option_word_wrap_line_length = DEFAULT_WRAP_LINE_LENGTH;
+    if (option_bytes_per_line < 0)
+        option_bytes_per_line = 0;
 #else
     /* Reset forced in case of build without internal editor */
     use_internal_edit = FALSE;
diff --git a/src/setup.h b/src/setup.h
index b43420f63..cfa6d754f 100644
--- a/src/setup.h
+++ b/src/setup.h
@@ -91,6 +91,7 @@ extern gboolean copymove_persistent_attr;
 extern gboolean classic_progressbar;
 extern gboolean easy_patterns;
 extern int option_tab_spacing;
+extern int option_bytes_per_line;
 extern gboolean auto_save_setup;
 extern gboolean only_leading_plus_minus;
 extern int cd_symlinks;
diff --git a/src/viewer/display.c b/src/viewer/display.c
index be6d60eb7..2f9d386ce 100644
--- a/src/viewer/display.c
+++ b/src/viewer/display.c
@@ -324,7 +324,10 @@ mcview_update_bytes_per_line (WView * view)
 
     g_assert (bytes != 0);
 
-    view->bytes_per_line = bytes;
+    view->bytes_per_line =
+      (option_bytes_per_line > 0) && (bytes > option_bytes_per_line) ?
+      option_bytes_per_line :
+      bytes;
     view->dirty = mcview_max_dirt_limit + 1;    /* To force refresh */
 } 

[andrew_b]

I think the editor options dialog is not a proper place for the viewer option.