libsmartcols: add scols_column_add_width()

Signed-off-by: Karel Zak <kzak@redhat.com>

libsmartcols/docs/libsmartcols-sections.txt

@@ -24,6 +24,7 @@ scols_column_get_header
 scols_column_get_safechars
 scols_column_get_table
 scols_column_get_whint
+scols_column_get_width
 scols_column_is_customwrap
 scols_column_is_hidden
 scols_column_is_noextremes

libsmartcols/src/column.c

@@ -396,6 +396,25 @@ const char *scols_column_get_safechars(const struct libscols_column *cl)
 	return cl->safechars;
 }
 
+/**
+ * scols_column_get_width:
+ * @cl: a pointer to a struct libscols_column instance
+ *
+ * Important note: the column width is unknown until library starts printing
+ * (width is calculated before printing). The function is usable for example in
+ * nextchunk() callback specified by scols_column_set_wrapfunc().
+ *
+ * See also scols_column_get_whint(), it returns wanted size (!= final size).
+ *
+ * Returns: column width
+ *
+ * Since: 2.29
+ */
+size_t scols_column_get_width(const struct libscols_column *cl)
+{
+	return cl->width;
+}
+
 /**
  * scols_column_is_hidden:
  * @cl: a pointer to a struct libscols_column instance

libsmartcols/src/libsmartcols.h.in

@@ -147,6 +147,8 @@ extern int scols_column_is_noextremes(const struct libscols_column *cl);
 extern int scols_column_is_wrap(const struct libscols_column *cl);
 extern int scols_column_is_customwrap(const struct libscols_column *cl);
 
+extern size_t scols_column_get_width(const struct libscols_column *cl);
+
 extern int scols_column_set_safechars(struct libscols_column *cl, const char *safe);
 extern const char *scols_column_get_safechars(const struct libscols_column *cl);
 

libsmartcols/src/libsmartcols.sym

@@ -140,6 +140,7 @@ SMARTCOLS_2.29 {
 global:
 	scols_column_get_safechars;
 	scols_column_get_table;
+	scols_column_get_width;
 	scols_column_is_customwrap;
 	scols_column_set_safechars;
 	scols_column_set_wrapfunc;