[geocode-glib] place: Add equality method

[Philip Withnall <pwithnall src gnome org>]

commit a05220e53672e75c853727cae29c0ff027e14805
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Mon Nov 14 15:46:00 2016 +0000

    place: Add equality method
    
    Add a method for checking that two #GeocodePlace instances are equal.
    This will be used in upcoming commits.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=774631

 geocode-glib/geocode-glib.symbols |    1 +
 geocode-glib/geocode-place.c      |   61 +++++++++++++++++++++++++++++++++++++
 geocode-glib/geocode-place.h      |    3 ++
 3 files changed, 65 insertions(+), 0 deletions(-)
---
diff --git a/geocode-glib/geocode-glib.symbols b/geocode-glib/geocode-glib.symbols
index 1218b31..da3c31f 100644
--- a/geocode-glib/geocode-glib.symbols
+++ b/geocode-glib/geocode-glib.symbols
@@ -42,6 +42,7 @@ geocode_place_type_get_type
 geocode_place_osm_type_get_type
 geocode_place_new
 geocode_place_new_with_location
+geocode_place_equal
 geocode_place_get_area
 geocode_place_set_area
 geocode_place_get_building
diff --git a/geocode-glib/geocode-place.c b/geocode-glib/geocode-place.c
index 67d9025..637e23b 100644
--- a/geocode-glib/geocode-place.c
+++ b/geocode-glib/geocode-place.c
@@ -628,6 +628,67 @@ geocode_place_new_with_location (const char      *name,
                              NULL);
 }
 
+/* NULL-safe #GeocodeLocation equality check. */
+static gboolean
+location_equal0 (GeocodeLocation *a,
+                 GeocodeLocation *b)
+{
+        return ((a == NULL && b == NULL) ||
+                (a != NULL && b != NULL && geocode_location_equal (a, b)));
+}
+
+/* NULL-safe #GeocodeBoundingBox equality check. */
+static gboolean
+bbox_equal0 (GeocodeBoundingBox *a,
+             GeocodeBoundingBox *b)
+{
+        return ((a == NULL && b == NULL) ||
+                (a != NULL && b != NULL && geocode_bounding_box_equal (a, b)));
+}
+
+/**
+ * geocode_place_equal:
+ * @a: a place
+ * @b: another place
+ *
+ * Compare two #GeocodePlace instances for equality. This compares all fields
+ * and only returns %TRUE if the instances are exactly equal. For example, if
+ * both places have the same #GeocodePlace:location, but place @b has its
+ * #GeocodePlace:continent property set and place @a does not, %FALSE will be
+ * returned.
+ *
+ * Both instances must be non-%NULL.
+ *
+ * Returns: %TRUE if the instances are equal, %FALSE otherwise
+ * Since: UNRELEASED
+ */
+gboolean
+geocode_place_equal (GeocodePlace *a,
+                     GeocodePlace *b)
+{
+        g_return_val_if_fail (GEOCODE_IS_PLACE (a), FALSE);
+        g_return_val_if_fail (GEOCODE_IS_PLACE (b), FALSE);
+
+        return (g_strcmp0 (a->priv->name, b->priv->name) == 0 &&
+                a->priv->place_type == b->priv->place_type &&
+                location_equal0 (a->priv->location, b->priv->location) &&
+                bbox_equal0 (a->priv->bbox, b->priv->bbox) &&
+                g_strcmp0 (a->priv->street_address, b->priv->street_address) == 0 &&
+                g_strcmp0 (a->priv->street, b->priv->street) == 0 &&
+                g_strcmp0 (a->priv->building, b->priv->building) == 0 &&
+                g_strcmp0 (a->priv->postal_code, b->priv->postal_code) == 0 &&
+                g_strcmp0 (a->priv->area, b->priv->area) == 0 &&
+                g_strcmp0 (a->priv->town, b->priv->town) == 0 &&
+                g_strcmp0 (a->priv->county, b->priv->county) == 0 &&
+                g_strcmp0 (a->priv->state, b->priv->state) == 0 &&
+                g_strcmp0 (a->priv->admin_area, b->priv->admin_area) == 0 &&
+                g_strcmp0 (a->priv->country_code, b->priv->country_code) == 0 &&
+                g_strcmp0 (a->priv->country, b->priv->country) == 0 &&
+                g_strcmp0 (a->priv->continent, b->priv->continent) == 0 &&
+                g_strcmp0 (a->priv->osm_id, b->priv->osm_id) == 0 &&
+                a->priv->osm_type == b->priv->osm_type);
+}
+
 /**
  * geocode_place_set_name:
  * @place: A place
diff --git a/geocode-glib/geocode-place.h b/geocode-glib/geocode-place.h
index 8f3f5b4..54883a2 100644
--- a/geocode-glib/geocode-place.h
+++ b/geocode-glib/geocode-place.h
@@ -170,6 +170,9 @@ GeocodePlace *geocode_place_new_with_location      (const char      *name,
                                                     GeocodePlaceType place_type,
                                                     GeocodeLocation *location);
 
+gboolean geocode_place_equal                       (GeocodePlace *a,
+                                                    GeocodePlace *b);
+
 void geocode_place_set_name                        (GeocodePlace *place,
                                                     const char   *name);
 const char *geocode_place_get_name                 (GeocodePlace *place);