[mutter] boxes: Add rectangle init macro

[Marge Bot <marge-bot src gnome org>]

commit 990267026a0f6b777e7f8acf547ef0ba6d63a697
Author: Jonas Ådahl <jadahl gmail com>
Date:   Tue Jun 22 16:10:05 2021 +0200

    boxes: Add rectangle init macro
    
    META_RECTANGLE_INIT() works like e.g. GRAPHENE_RECT_INIT() and similar
    macros.
    
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2159>

 src/meta/boxes.h        |  8 ++++++++
 src/tests/boxes-tests.c | 13 +++++++++++++
 2 files changed, 21 insertions(+)
---
diff --git a/src/meta/boxes.h b/src/meta/boxes.h
index 7585e1312c..40683bb1f4 100644
--- a/src/meta/boxes.h
+++ b/src/meta/boxes.h
@@ -54,6 +54,14 @@ typedef struct _MetaRectangle MetaRectangle;
 typedef cairo_rectangle_int_t MetaRectangle;
 #endif
 
+#define META_RECTANGLE_INIT(_x, _y, _width, _height) \
+  (MetaRectangle) { \
+    .x = (_x), \
+    .y = (_y), \
+    .width = (_width), \
+    .height = (_height) \
+  }
+
 /**
  * MetaStrut:
  * @rect: #MetaRectangle the #MetaStrut is on
diff --git a/src/tests/boxes-tests.c b/src/tests/boxes-tests.c
index ea33b5544c..8886a294cf 100644
--- a/src/tests/boxes-tests.c
+++ b/src/tests/boxes-tests.c
@@ -103,6 +103,18 @@ new_monitor_edge (int x, int y, int width, int height, int side_type)
   return temporary;
 }
 
+static void
+test_init_rect (void)
+{
+  MetaRectangle rect;
+
+  rect = META_RECTANGLE_INIT (1, 2, 3, 4);
+  g_assert_cmpint (rect.x, ==, 1);
+  g_assert_cmpint (rect.y, ==, 2);
+  g_assert_cmpint (rect.width, ==, 3);
+  g_assert_cmpint (rect.height, ==, 4);
+}
+
 static void
 test_area (void)
 {
@@ -1364,6 +1376,7 @@ init_boxes_tests (void)
 {
   init_random_ness ();
 
+  g_test_add_func ("/util/boxes/init", test_init_rect);
   g_test_add_func ("/util/boxes/area", test_area);
   g_test_add_func ("/util/boxes/intersect", test_intersect);
   g_test_add_func ("/util/boxes/equal", test_equal);