From 6989092c6bb5b474be102db84937d7c2c740915f Mon Sep 17 00:00:00 2001
From: Andrea Zagli <azagli@libero.it>
Date: Mon, 27 Dec 2010 17:22:24 +0100
Subject: [PATCH] Implemented GdaExGrid::add_column, GdaExGrid::add_columns and
 GdaExGrid::clear.

---
 src/grid.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/src/grid.c b/src/grid.c
index 10cf8b4..765e541 100644
--- a/src/grid.c
+++ b/src/grid.c
@@ -70,6 +70,8 @@ static void
 gdaex_grid_init (GdaExGrid *gdaex_grid)
 {
 	GdaExGridPrivate *priv = GDAEX_GRID_GET_PRIVATE (gdaex_grid);
+
+	priv->columns = g_ptr_array_new ();
 }
 
 GdaExGrid
@@ -82,6 +84,57 @@ GdaExGrid
 	return gdaex_grid;
 }
 
+void
+gdaex_grid_add_column (GdaExGrid *grid, GdaExGridColumn *column)
+{
+	GdaExGridPrivate *priv;
+
+	g_return_if_fail (GDAEX_IS_GRID (grid));
+	g_return_if_fail (GDAEX_IS_GRID_COLUMN (column));
+
+	priv = GDAEX_GRID_GET_PRIVATE (grid);
+
+	g_ptr_array_add (priv->columns, g_memdup (column, sizeof (GdaExGridColumn)))
+}
+
+void
+gdaex_grid_add_columns (GdaExGrid *grid, GSList *columns)
+{
+	GSList *first;
+
+	g_return_if_fail (GDAEX_IS_GRID (grid));
+	g_return_if_fail (G_IS_SLIST (columns));
+
+	first = columns;
+	while (first != NULL)
+		{
+			gdaex_grid_add_column (grid, (GdaExGridColumn *)first->data);
+			first = g_slist_next (first);
+		}
+}
+
+void
+gdaex_grid_clear (GdaExGrid *grid)
+{
+	GdaExGridPrivate *priv;
+
+	guint col;
+
+	g_return_if_fail (GDAEX_IS_GRID (grid));
+
+	priv = GDAEX_GRID_GET_PRIVATE (grid);
+
+	for (col = 0; priv->columns->len; col++)
+		{
+			g_object_unref (g_ptr_array_index (priv->columns, col));
+		}
+
+	g_ptr_array_remove_range (priv->columns, 0, priv->columns->len);
+	g_ptr_array_unref (priv->columns);
+
+	priv->columns = g_ptr_array_new ();
+}
+
 /* PRIVATE */
 static void
 gdaex_grid_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec)
-- 
2.49.0