libsmartcols: add columns

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

1 files changed, 156 insertions, 0 deletions

diff --git a/libsmartcols/src/column.c b/libsmartcols/src/column.c
new file mode 100644
index 000000000..5e6e01aec
--- /dev/null
+++ b/libsmartcols/src/column.c
@@ -0,0 +1,156 @@
+/*
+ * column.c - functions for table handling at the column level
+ *
+ * Copyright (C) 2014 Ondrej Oprala <ooprala@redhat.com>
+ * Copyright (C) 2014 Karel Zak <kzak@redhat.com>
+ *
+ * This file may be redistributed under the terms of the
+ * GNU Lesser General Public License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+#include "smartcolsP.h"
+
+struct libscols_column *scols_new_column(void)
+{
+	struct libscols_column *cl;
+
+	cl = calloc(1, sizeof(*cl));
+	if (!cl)
+		return NULL;
+
+	cl->refcount = 1;
+	INIT_LIST_HEAD(&cl->cl_columns);
+	return cl;
+}
+
+void scols_ref_column(struct libscols_column *cl)
+{
+	if (cl)
+		cl->refcount++;
+}
+
+void scols_unref_column(struct libscols_column *cl)
+{
+	if (cl && --cl->refcount <= 0) {
+		list_del(&cl->cl_columns);
+		scols_reset_cell(&cl->header);
+		free(cl->color);
+		free(cl);
+	}
+}
+
+struct libscols_column *scols_copy_column(const struct libscols_column *cl)
+{
+	struct libscols_column *ret;
+
+	assert (cl);
+	if (!cl)
+		return NULL;
+	ret = scols_new_column();
+	if (!ret)
+		return NULL;
+	if (cl->color) {
+		ret->color = strdup(cl->color);
+		if (!ret->color)
+			goto err;
+	}
+
+	if (scols_cell_set_data(&ret->header, scols_cell_get_data(&cl->header)))
+		goto err;
+	if (scols_cell_set_color(&ret->header, scols_cell_get_color(&cl->header)))
+		goto err;
+
+	ret->width	= cl->width;
+	ret->width_min	= cl->width_min;
+	ret->width_max	= cl->width_max;
+	ret->width_avg	= cl->width_avg;
+	ret->width_hint	= cl->width_hint;
+	ret->flags	= cl->flags;
+	ret->is_extreme = cl->is_extreme;
+
+	return ret;
+err:
+	scols_unref_column(ret);
+	return NULL;
+}
+
+int scols_column_set_whint(struct libscols_column *cl, double whint)
+{
+	assert(cl);
+
+	if (!cl)
+		return -EINVAL;
+
+	cl->width_hint = whint;
+	return 0;
+}
+
+double scols_column_get_whint(struct libscols_column *cl)
+{
+	assert(cl);
+	return cl ? cl->width_hint : -EINVAL;
+}
+
+int scols_column_set_flags(struct libscols_column *cl, int flags)
+{
+	assert(cl);
+
+	if (!cl)
+		return -EINVAL;
+
+	cl->flags = flags;
+	return 0;
+}
+
+int scols_column_get_flags(struct libscols_column *cl)
+{
+	assert(cl);
+	return cl ? cl->flags : -EINVAL;
+}
+
+const struct libscols_cell *scols_column_get_header(struct libscols_column *cl)
+{
+	assert(cl);
+	return cl ? &cl->header : NULL;
+}
+
+/*
+ * The default color for data cells and column header.
+ *
+ * If you want to set header specific color then use scols_column_get_header()
+ * and scols_cell_set_color().
+ *
+ * If you want to set data cell specific color the use scols_line_get_cell() +
+ * scols_cell_set_color().
+ */
+int scols_column_set_color(struct libscols_column *cl, const char *color)
+{
+	char *p = NULL;
+
+	assert(cl);
+	if (!cl)
+		return -EINVAL;
+	if (color) {
+		p = strdup(color);
+		if (!p)
+			return -ENOMEM;
+	}
+
+	free(cl->color);
+	cl->color = p;
+	return 0;
+}
+
+const char *scols_column_get_color(struct libscols_column *cl)
+{
+	assert(cl);
+	return cl ? cl->color : NULL;
+}
+
+
+