[shotwell/wip/cleanup-facedetect: 4/15] Simplify FaceRect serializer

[Jens Georg <jensgeorg src gnome org>]

commit f7adf3f1c76a3d6ea2ae842b160200f6db23b285
Author: Jens Georg <mail jensge org>
Date:   Sat Aug 13 17:55:57 2022 +0200

    Simplify FaceRect serializer
    
    Just ust GLibs Array2Variant function

 subprojects/shotwell-facedetect/shotwell-facedetect.cpp | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)
---
diff --git a/subprojects/shotwell-facedetect/shotwell-facedetect.cpp 
b/subprojects/shotwell-facedetect/shotwell-facedetect.cpp
index cfca3e99..bb21a14b 100644
--- a/subprojects/shotwell-facedetect/shotwell-facedetect.cpp
+++ b/subprojects/shotwell-facedetect/shotwell-facedetect.cpp
@@ -21,14 +21,8 @@ const char* FACEDETECT_PATH = "/org/gnome/shotwell/faces";
 
 GVariant *FaceRect::serialize() const
 {
-    GVariantBuilder *arr_builder = g_variant_builder_new(G_VARIANT_TYPE("ad"));
-    for(std::vector<double>::const_iterator v = vec.begin(); v != vec.end(); v++) {
-        GVariant *d = g_variant_new("d", *v);
-        g_variant_builder_add(arr_builder, "d", d);
-    }
-    GVariant *vec = g_variant_new("ad", arr_builder);
-    g_variant_builder_unref(arr_builder);
-    return g_variant_new("(dddd@ad)", x, y, width, height, vec);
+    return g_variant_new("(dddd@ad)", x, y, width, height,
+                         g_variant_new_fixed_array(G_VARIANT_TYPE_DOUBLE, vec.data(), vec.size(), 
sizeof(double)));
 }
 
 // DBus binding functions