1 files changed, 137 insertions, 0 deletions
diff --git a/libsmartcols/samples/grouping-overlay.c b/libsmartcols/samples/grouping-overlay.c
new file mode 100644
index 0000000..ef125a6
--- /dev/null
+++ b/libsmartcols/samples/grouping-overlay.c
@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2018 Karel Zak <kzak@redhat.com>
+ *
+ * This file may be redistributed under the terms of the
+ * GNU Lesser General Public License.
+ */
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <getopt.h>
+
+#include "c.h"
+#include "nls.h"
+#include "strutils.h"
+#include "xalloc.h"
+
+#include "libsmartcols.h"
+
+
+enum { COL_NAME, COL_DATA };
+
+/* add columns to the @tb */
+static void setup_columns(struct libscols_table *tb)
+{
+	if (!scols_table_new_column(tb, "NAME", 0, SCOLS_FL_TREE))
+		goto fail;
+	if (!scols_table_new_column(tb, "DATA", 0, 0))
+		goto fail;
+	return;
+fail:
+	scols_unref_table(tb);
+	err(EXIT_FAILURE, "failed to create output columns");
+}
+
+static struct libscols_line *add_line(struct libscols_table *tb, struct libscols_line *parent, const char *name, const char *data)
+{
+	struct libscols_line *ln = scols_table_new_line(tb, parent);
+	if (!ln)
+		err(EXIT_FAILURE, "failed to create output line");
+
+	if (scols_line_set_data(ln, COL_NAME, name))
+		goto fail;
+	if (scols_line_set_data(ln, COL_DATA, data))
+		goto fail;
+	return ln;
+fail:
+	scols_unref_table(tb);
+	err(EXIT_FAILURE, "failed to create output line");
+}
+
+int main(int argc, char *argv[])
+{
+	struct libscols_table *tb;
+	struct libscols_line *ln;		/* any line */
+	struct libscols_line *g1, *g2, *g3;	/* groups */
+	struct libscols_line *p1;		/* parents */
+	int c;
+
+	static const struct option longopts[] = {
+		{ "maxout", 0, NULL, 'm' },
+		{ "width",  1, NULL, 'w' },
+		{ "help",   1, NULL, 'h' },
+
+		{ NULL, 0, NULL, 0 },
+	};
+
+	setlocale(LC_ALL, "");	/* just to have enable UTF8 chars */
+
+	scols_init_debug(0);
+
+	tb = scols_new_table();
+	if (!tb)
+		err(EXIT_FAILURE, "failed to create output table");
+
+	while((c = getopt_long(argc, argv, "hmw:", longopts, NULL)) != -1) {
+		switch(c) {
+		case 'h':
+			printf("%s [--help | --maxout | --width <num>]\n", program_invocation_short_name);
+			break;
+		case 'm':
+			scols_table_enable_maxout(tb, TRUE);
+			break;
+		case 'w':
+			scols_table_set_termforce(tb, SCOLS_TERMFORCE_ALWAYS);
+			scols_table_set_termwidth(tb, strtou32_or_err(optarg, "failed to parse terminal width"));
+			break;
+		}
+	}
+
+	scols_table_enable_colors(tb, isatty(STDOUT_FILENO));
+	setup_columns(tb);
+
+	add_line(tb, NULL, "Alone", "bla bla bla");
+
+	p1 = add_line(tb, NULL, "A", "bla bla bla");
+	     add_line(tb, p1,   "A:B", "bla bla bla");
+	     add_line(tb, p1,   "A:C", "bla bla bla");
+
+	g1 = add_line(tb, NULL, "B", "bla bla bla");
+
+	g2 = add_line(tb, NULL, "C", "bla bla bla");
+	ln = add_line(tb, NULL, "D", "bla bla bla");
+	scols_table_group_lines(tb, g2, ln, 0);
+
+	ln = add_line(tb, NULL, "G2:A", "alb alb alb");
+	scols_line_link_group(ln, g2, 0);
+
+	ln = add_line(tb, NULL, "E", "bla bla bla");
+	scols_table_group_lines(tb, g1, ln, 0);
+
+
+	ln = add_line(tb, NULL, "G1:A", "alb alb alb");
+	scols_line_link_group(ln, g1, 0);
+
+	add_line(tb, NULL, "G", "bla bla bla");
+
+	g3 = ln = add_line(tb, NULL, "G1:B", "alb alb alb");
+	scols_line_link_group(ln, g1, 0);
+
+	ln = add_line(tb, NULL, "F", "bla bla bla");
+	scols_table_group_lines(tb, g3, ln, 0);
+
+	ln = add_line(tb, NULL, "G3:A", "alb alb alb");
+	scols_line_link_group(ln, g3, 0);
+
+	add_line(tb, NULL, "foo", "bla bla bla");
+	add_line(tb, NULL, "bar", "bla bla bla");
+
+	scols_print_table(tb);
+
+	scols_unref_table(tb);
+	return EXIT_SUCCESS;
+}