Added some g_return_if_fails and g_return_val_if_fails.

2000-08-25  Christopher James Lahey  <clahey@helixcode.com>

	* e-table-col.c, e-table-config.c, e-table-header.c,
	e-table-text-model.c: Added some g_return_if_fails and
	g_return_val_if_fails.

svn path=/trunk/; revision=5056

4 files changed, 55 insertions, 15 deletions

diff --git a/widgets/table/e-table-col.c b/widgets/table/e-table-col.c
index 0e7c14f748..c6a734b3ee 100644
--- a/widgets/table/e-table-col.c
+++ b/widgets/table/e-table-col.c
@@ -97,7 +97,9 @@ e_table_col_new (int col_idx, const char *text, double expansion, int min_width,
 	
 	g_return_val_if_fail (expansion >= 0, NULL);
 	g_return_val_if_fail (min_width >= 0, NULL);
+	g_return_val_if_fail (ecell != NULL, NULL);
 	g_return_val_if_fail (compare != NULL, NULL);
+	g_return_val_if_fail (text != NULL, NULL);
 
 	etc = gtk_type_new (E_TABLE_COL_TYPE);
        
@@ -129,7 +131,9 @@ e_table_col_new_with_pixbuf (int col_idx, GdkPixbuf *pixbuf, double expansion, i
 	
 	g_return_val_if_fail (expansion >= 0, NULL);
 	g_return_val_if_fail (min_width >= 0, NULL);
+	g_return_val_if_fail (ecell != NULL, NULL);
 	g_return_val_if_fail (compare != NULL, NULL);
+	g_return_val_if_fail (pixbuf != NULL, NULL);
 
 	etc = gtk_type_new (E_TABLE_COL_TYPE);
 
@@ -157,12 +161,18 @@ e_table_col_new_with_pixbuf (int col_idx, GdkPixbuf *pixbuf, double expansion, i
 void
 e_table_col_set_arrow (ETableCol *col, ETableColArrow arrow)
 {
+	g_return_if_fail (col != NULL);
+	g_return_if_fail (E_IS_TABLE_COL(col));
+
 	col->arrow = arrow;
 }
 
 ETableColArrow
 e_table_col_get_arrow (ETableCol *col)
 {
+	g_return_val_if_fail (col != NULL, E_TABLE_COL_ARROW_NONE);
+	g_return_val_if_fail (E_IS_TABLE_COL(col), E_TABLE_COL_ARROW_NONE);
+
 	return col->arrow;
 }
 
diff --git a/widgets/table/e-table-config.c b/widgets/table/e-table-config.c
index 5d078f8f86..d124fe5d2d 100644
--- a/widgets/table/e-table-config.c
+++ b/widgets/table/e-table-config.c
@@ -150,7 +150,10 @@ e_table_gui_config (ETable *etable)
 	GladeXML *gui;
 	GnomeDialog *dialog;
 	ConfigData *config_data;
-	
+
+	g_return_val_if_fail(etable != NULL, NULL);
+	g_return_val_if_fail(E_IS_TABLE(etable), NULL);
+
 	glade_gnome_init ();
 	gui = glade_xml_new (ETABLE_GLADEDIR "/e-table-config.glade", NULL);
 	if (!gui)
@@ -193,16 +196,26 @@ e_table_gui_destroy_config_data (GtkWidget *widget)
 	gtk_object_destroy (GTK_OBJECT (cd->gui));
 	g_free (cd);
 }
-	
+
 void
 e_table_gui_config_accept (GtkWidget *widget, ETable *etable)
 {
+	g_return_if_fail(etable != NULL);
+	g_return_if_fail(E_IS_TABLE(etable));
+	g_return_if_fail(widget != NULL);
+	g_return_if_fail(GTK_IS_WIDGET(widget));
+
 	e_table_gui_destroy_config_data (widget);
 }
 
 void
 e_table_gui_config_cancel (GtkWidget *widget, ETable *etable)
 {
+	g_return_if_fail(etable != NULL);
+	g_return_if_fail(E_IS_TABLE(etable));
+	g_return_if_fail(widget != NULL);
+	g_return_if_fail(GTK_IS_WIDGET(widget));
+
 	e_table_gui_destroy_config_data (widget);
 }
 
@@ -212,6 +225,10 @@ e_table_do_gui_config (GtkWidget *parent, ETable *etable)
 	GnomeDialog *dialog;
 	int r;
 	
+	g_return_if_fail(etable != NULL);
+	g_return_if_fail(E_IS_TABLE(etable));
+	g_return_if_fail(parent == NULL || GTK_IS_WINDOW(parent));
+
 	dialog = GNOME_DIALOG (e_table_gui_config (etable));
 	if (!dialog)
 		return;
diff --git a/widgets/table/e-table-header.c b/widgets/table/e-table-header.c
index fddda13da8..0f8f9ed1e9 100644
--- a/widgets/table/e-table-header.c
+++ b/widgets/table/e-table-header.c
@@ -348,7 +348,7 @@ e_table_header_index (ETableHeader *eth, int col)
 {
 	g_return_val_if_fail (eth != NULL, -1);
 	g_return_val_if_fail (E_IS_TABLE_HEADER (eth), -1);
-	g_return_val_if_fail (col < eth->col_count, -1);
+	g_return_val_if_fail (col >= 0 && col < eth->col_count, -1);
 
 	return eth->columns [col]->col_idx;
 }
@@ -376,6 +376,7 @@ ETableCol **
 e_table_header_get_columns (ETableHeader *eth)
 {
 	ETableCol **ret;
+	int i;
 	
 	g_return_val_if_fail (eth != NULL, 0);
 	g_return_val_if_fail (E_IS_TABLE_HEADER (eth), 0);
@@ -384,6 +385,10 @@ e_table_header_get_columns (ETableHeader *eth)
 	memcpy (ret, eth->columns, sizeof (ETableCol *) * eth->col_count);
 	ret [eth->col_count] = NULL;
 
+	for (i = 0; i < eth->col_count; i++) {
+		gtk_object_ref(GTK_OBJECT(ret[i]));
+	}
+
 	return ret;
 }
 
@@ -479,11 +484,16 @@ e_table_header_remove (ETableHeader *eth, int idx)
 void
 e_table_header_set_selection (ETableHeader *eth, gboolean allow_selection)
 {
+	g_return_if_fail (eth != NULL);
+	g_return_if_fail (E_IS_TABLE_HEADER (eth));
 }
 
 void
 e_table_header_set_size(ETableHeader *eth, int idx, int size)
 {
+	g_return_if_fail (eth != NULL);
+	g_return_if_fail (E_IS_TABLE_HEADER (eth));
+
 	enqueue(eth, idx, size);
 }
 
@@ -610,21 +620,19 @@ int
 e_table_header_col_diff (ETableHeader *eth, int start_col, int end_col)
 {
 	int total, col;
-	
+
 	g_return_val_if_fail (eth != NULL, 0);
 	g_return_val_if_fail (E_IS_TABLE_HEADER (eth), 0);
 
-	{
-		if (start_col < 0)
-			start_col = 0;
-		if (end_col > eth->col_count)
-			end_col = eth->col_count;
+	if (start_col < 0)
+		start_col = 0;
+	if (end_col > eth->col_count)
+		end_col = eth->col_count;
+
+	total = 0;
+	for (col = start_col; col < end_col; col++){
 		
-		total = 0;
-		for (col = start_col; col < end_col; col++){
-			
-			total += eth->columns [col]->width;
-		}
+		total += eth->columns [col]->width;
 	}
 
 	return total;
diff --git a/widgets/table/e-table-text-model.c b/widgets/table/e-table-text-model.c
index 5b6fa8b707..abda0bcc84 100644
--- a/widgets/table/e-table-text-model.c
+++ b/widgets/table/e-table-text-model.c
@@ -198,7 +198,12 @@ row_changed (ETableModel *table_model, int row, ETableTextModel *model)
 ETableTextModel *
 e_table_text_model_new (ETableModel *table_model, int row, int model_col)
 {
-	ETableTextModel *model = gtk_type_new (e_table_text_model_get_type ());
+	ETableTextModel *model;
+
+	g_return_val_if_fail(table_model != NULL, NULL);
+	g_return_val_if_fail(E_IS_TABLE_MODEL(table_model), NULL);
+
+	model = gtk_type_new (e_table_text_model_get_type ());
 	model->model = table_model;
 	if (model->model){
 		gtk_object_ref (GTK_OBJECT(model->model));