From d40e5a8ba1e7d362415be17d0ccde4477243839d Mon Sep 17 00:00:00 2001
From: Matthew Barnes <mbarnes@redhat.com>
Date: Fri, 28 Jun 2013 12:05:01 -0400
Subject: Add e_table_specification_get_column_index().

Lookups up the column index of an ETableColumnSpecification, returns a
negative value if no match found.
---
 .../evolution-util/evolution-util-sections.txt     |  1 +
 e-util/e-table-specification.c                     | 41 ++++++++++++++++++++++
 e-util/e-table-specification.h                     |  3 ++
 3 files changed, 45 insertions(+)

diff --git a/doc/reference/evolution-util/evolution-util-sections.txt b/doc/reference/evolution-util/evolution-util-sections.txt
index 039667a3b0..6555f5b1dd 100644
--- a/doc/reference/evolution-util/evolution-util-sections.txt
+++ b/doc/reference/evolution-util/evolution-util-sections.txt
@@ -3915,6 +3915,7 @@ e_table_sorting_utils_lookup_cmp_cache
 ETableSpecification
 e_table_specification_new
 e_table_specification_ref_columns
+e_table_specification_get_column_index
 e_table_specification_load_from_file
 e_table_specification_load_from_string
 e_table_specification_load_from_node
diff --git a/e-util/e-table-specification.c b/e-util/e-table-specification.c
index d6ca13bec4..40d4a54d63 100644
--- a/e-util/e-table-specification.c
+++ b/e-util/e-table-specification.c
@@ -142,6 +142,47 @@ e_table_specification_ref_columns (ETableSpecification *specification)
 	return g_ptr_array_ref (specification->priv->columns);
 }
 
+/**
+ * e_table_specification_get_column_index:
+ * @specification: an #ETableSpecification
+ * @column_spec: an #ETableColumnSpecification
+ *
+ * Returns the zero-based index of @column_spec within @specification,
+ * or a negative value if @column_spec is not defined by @specification.
+ *
+ * Returns: the column index of @column_spec, or a negative value
+ **/
+gint
+e_table_specification_get_column_index (ETableSpecification *specification,
+                                        ETableColumnSpecification *column_spec)
+{
+	GPtrArray *columns;
+	gint column_index = -1;
+	guint ii;
+
+	g_return_val_if_fail (E_IS_TABLE_SPECIFICATION (specification), -1);
+	g_return_val_if_fail (E_IS_TABLE_COLUMN_SPECIFICATION (column_spec), -1);
+
+	columns = e_table_specification_ref_columns (specification);
+
+	for (ii = 0; ii < columns->len; ii++) {
+		gboolean column_specs_equal;
+
+		column_specs_equal =
+			e_table_column_specification_equal (
+			column_spec, columns->pdata[ii]);
+
+		if (column_specs_equal) {
+			column_index = (gint) ii;
+			break;
+		}
+	}
+
+	g_ptr_array_unref (columns);
+
+	return column_index;
+}
+
 /**
  * e_table_specification_load_from_file:
  * @specification: an #ETableSpecification
diff --git a/e-util/e-table-specification.h b/e-util/e-table-specification.h
index 79484aa92e..09b86c3791 100644
--- a/e-util/e-table-specification.h
+++ b/e-util/e-table-specification.h
@@ -87,6 +87,9 @@ ETableSpecification *
 		e_table_specification_new	(void);
 GPtrArray *	e_table_specification_ref_columns
 						(ETableSpecification *specification);
+gint		e_table_specification_get_column_index
+						(ETableSpecification *specification,
+						 ETableColumnSpecification *column_spec);
 gboolean	e_table_specification_load_from_file
 						(ETableSpecification *specification,
 						 const gchar *filename);
-- 
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