[libgda] Added virtual methods to GdaDataModelIter

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 2e07689610cf920d02f92f0c87ceb7d8a93fc8c1
Author: Daniel Espinosa <esodan gmail com>
Date:   Wed Aug 15 09:03:45 2018 -0500

    Added virtual methods to GdaDataModelIter
    
    Step to allow per DataModel implementation to use its own
    DataModelIter implementation

 libgda/gda-data-model-iter.c | 12 ++++++++----
 libgda/gda-data-model-iter.h |  8 ++++++++
 libgda/gda-data-select.h     |  2 ++
 3 files changed, 18 insertions(+), 4 deletions(-)
---
diff --git a/libgda/gda-data-model-iter.c b/libgda/gda-data-model-iter.c
index 7f298188b..5b845bdda 100644
--- a/libgda/gda-data-model-iter.c
+++ b/libgda/gda-data-model-iter.c
@@ -133,6 +133,10 @@ gda_data_model_iter_class_init (GdaDataModelIterClass *class)
                               NULL, NULL,
                               g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
 
+       class->move_to_row = gda_data_model_iter_move_to_row;
+       class->move_next = gda_data_model_iter_move_next;
+       class->move_prev = gda_data_model_iter_move_prev;
+       class->set_value_at = gda_data_model_iter_set_value_at;
        class->row_changed = NULL;
        class->end_of_data = NULL;
 
@@ -574,7 +578,7 @@ gda_data_model_iter_get_property (GObject *object,
 }
 
 /**
- * gda_data_model_iter_move_to_row:
+ * gda_data_model_iter_move_to_row: (virtual move_to_row)
  * @iter: a #GdaDataModelIter object
  * @row: the row to set @iter to
  *
@@ -721,7 +725,7 @@ gda_data_model_iter_move_to_row_default (GdaDataModel *model, GdaDataModelIter *
 
 
 /**
- * gda_data_model_iter_move_next:
+ * gda_data_model_iter_move_next: (virtual move_next)
  * @iter: a #GdaDataModelIter object
  *
  * Moves @iter one row further than where it already is 
@@ -822,7 +826,7 @@ gda_data_model_iter_move_next_default (GdaDataModel *model, GdaDataModelIter *it
 }
 
 /**
- * gda_data_model_iter_move_prev:
+ * gda_data_model_iter_move_prev: (virtual move_prev)
  * @iter: a #GdaDataModelIter object
  *
  * Moves @iter one row before where it already is (synchronizes the values of the parameters in @iter 
@@ -1073,7 +1077,7 @@ gda_data_model_iter_get_value_at_e (GdaDataModelIter *iter, gint col, GError **e
 }
 
 /**
- * gda_data_model_iter_set_value_at:
+ * gda_data_model_iter_set_value_at: (virtual set_value_at)
  * @iter: a #GdaDataModelIter object
  * @col: the column number
  * @value: a #GValue (not %NULL)
diff --git a/libgda/gda-data-model-iter.h b/libgda/gda-data-model-iter.h
index 6f5e0134f..2b5fcf504 100644
--- a/libgda/gda-data-model-iter.h
+++ b/libgda/gda-data-model-iter.h
@@ -36,6 +36,14 @@ struct _GdaDataModelIterClass
 {
        GdaSetClass                parent_class;
 
+       /* Virtual methods */
+       gboolean             (* move_to_row)      (GdaDataModelIter *iter, gint row);
+       gboolean             (* move_next)        (GdaDataModelIter *iter);
+       gboolean             (* move_prev)        (GdaDataModelIter *iter);
+       gboolean             (* set_value_at)     (GdaDataModelIter *iter, gint col,
+                      const GValue *value, GError **error);
+
+       /* Signals */
        void                    (* row_changed)      (GdaDataModelIter *iter, gint row);
        void                    (* end_of_data)      (GdaDataModelIter *iter);
 
diff --git a/libgda/gda-data-select.h b/libgda/gda-data-select.h
index d537e5006..56d99890f 100644
--- a/libgda/gda-data-select.h
+++ b/libgda/gda-data-select.h
@@ -178,6 +178,8 @@ GdaConnection *gda_data_select_get_connection                  (GdaDataSelect *m
 gboolean       gda_data_select_rerun                           (GdaDataSelect *model, GError **error);
 gboolean       gda_data_select_prepare_for_offline             (GdaDataSelect *model, GError **error);
 
+#define GDA_TYPE_DATA_SELECT_ITER gda_data_select_iter_get_type()
+
 G_END_DECLS
 
 #endif