gdstk backend: close API gaps so the tutorials run

tests/test_gdstk_backend.py

@@ -30,6 +30,28 @@ def test_component_api(self):
         c.add_port(name="p1", center=(0, 0), width=1, orientation=0, layer=(1, 0))
         self.assertIn("p1", c.ports)
 
+    def test_add_ref_array(self):
+        """add_ref(columns=, rows=, spacing=) lays out a repeated reference.
+
+        `test_bjt_gdsfactory` builds its contact rings this way. Without it
+        the notebook dies on a TypeError halfway through.
+        """
+        from glayout.backend import Component, rectangle
+        c = Component("array_probe")
+        unit = rectangle(size=(1, 1), layer=(1, 0))
+        ref = c.add_ref(unit, columns=3, rows=2, spacing=(2, 2))
+        self.assertIsNotNone(ref)
+        # 3 columns at pitch 2 span 1 + 2*2 = 5; 2 rows span 1 + 2 = 3.
+        (x0, y0), (x1, y1) = c.bbox
+        self.assertAlmostEqual(x1 - x0, 5.0)
+        self.assertAlmostEqual(y1 - y0, 3.0)
+
+    def test_add_ref_array_needs_spacing(self):
+        from glayout.backend import Component, rectangle
+        c = Component("array_probe_nospacing")
+        with self.assertRaises(ValueError):
+            c.add_ref(rectangle(size=(1, 1), layer=(1, 0)), columns=2)
+
     def test_primitives_build(self):
         from glayout.pdk.sky130_mapped.sky130_mapped import sky130_mapped_pdk as pdk
         from glayout.primitives.via_gen import via_stack, via_array

tutorial/BJT_tutorials/test_bjt_gdsfactory.ipynb

@@ -47,9 +47,10 @@
    "source": [
     "from glayout import MappedPDK, sky130 , gf180\n",
     "#from gdsfactory.cell import cell\n",
-    "from gdsfactory import Component\n",
-    "from gdsfactory.geometry import boolean\n",
-    "from gdsfactory.components import text_freetype, rectangle, array, rectangular_ring"
+    "from glayout.backend import Component\n",
+    "from glayout.backend import boolean\n",
+    "from glayout.backend import rectangle, rectangular_ring\n",
+    "from gdsfactory.components import text_freetype, array"
    ]
   },
   {

tutorial/GLayout_Cmirror.ipynb

@@ -37,7 +37,7 @@
     "from glayout.util.comp_utils import move, movex, movey, align_comp_to_port, evaluate_bbox, prec_center\n",
     "from glayout.routing.straight_route import straight_route\n",
     "from glayout.routing.c_route import c_route\n",
-    "from gdsfactory import Component\n",
+    "from glayout.backend import Component\n",
     "import gdstk\n",
     "import svgutils.transform as sg\n",
     "import IPython.display\n",
@@ -103,7 +103,7 @@
     "from glayout.util.comp_utils import evaluate_bbox, prec_center\n",
     "from glayout.routing.straight_route import straight_route\n",
     "from glayout.routing.c_route import c_route\n",
-    "from gdsfactory import Component\n"
+    "from glayout.backend import Component\n"
    ]
   },
   {

tutorial/GLayout_Introduction.ipynb

@@ -193,8 +193,8 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "from gdsfactory import Component\n",
-    "from gdsfactory.components import rectangle\n",
+    "from glayout.backend import Component\n",
+    "from glayout.backend import rectangle\n",
     "\n",
     "def makeMet1Rectangle(pdk, length):\n",
     "  met1 = pdk.get_glayer(\"met1\")\n",

tutorial/GLayout_Via.ipynb

@@ -104,8 +104,8 @@
    "outputs": [],
    "source": [
     "from glayout import sky130, gf180\n",
-    "from gdsfactory import Component\n",
-    "from gdsfactory.components import rectangle"
+    "from glayout.backend import Component\n",
+    "from glayout.backend import rectangle"
    ]
   },
   {

tutorial/glayout_tutorial_5T_OTA_part1.ipynb

@@ -136,8 +136,9 @@
    "outputs": [],
    "source": [
     "from glayout import MappedPDK, sky130, gf180\n",
-    "from gdsfactory import Component\n",
-    "from gdsfactory.components import text_freetype, rectangle\n",
+    "from glayout.backend import Component\n",
+    "from glayout.backend import rectangle\n",
+    "from gdsfactory.components import text_freetype\n",
     "\n",
     "from glayout import nmos, pmos\n",
     "from glayout import via_stack\n",

tutorial/glayout_tutorial_5T_OTA_part2.ipynb

@@ -95,8 +95,9 @@
    "source": [
     "from glayout import MappedPDK, sky130 , gf180\n",
     "#from gdsfactory.cell import cell\n",
-    "from gdsfactory import Component\n",
-    "from gdsfactory.components import text_freetype, rectangle"
+    "from glayout.backend import Component\n",
+    "from glayout.backend import rectangle\n",
+    "from gdsfactory.components import text_freetype"
    ]
   },
   {
@@ -236,8 +237,9 @@
     "fivet_ota_code_string = \"\"\"\n",
     "from glayout import MappedPDK, sky130 , gf180\n",
     "# from gdsfactory.cell import cell\n",
-    "from gdsfactory import Component\n",
-    "from gdsfactory.components import text_freetype, rectangle\n",
+    "from glayout.backend import Component\n",
+    "from glayout.backend import rectangle\n",
+    "from gdsfactory.components import text_freetype\n",
     "\n",
     "from glayout import nmos, pmos\n",
     "from glayout import via_stack\n",

tutorial/glayout_tutorial_FVF_part1.ipynb

@@ -171,8 +171,9 @@
    "source": [
     "from glayout import MappedPDK, sky130 , gf180\n",
     "#from gdsfactory.cell import cell\n",
-    "from gdsfactory import Component\n",
-    "from gdsfactory.components import text_freetype, rectangle"
+    "from glayout.backend import Component\n",
+    "from glayout.backend import rectangle\n",
+    "from gdsfactory.components import text_freetype"
    ]
   },
   {
@@ -863,8 +864,9 @@
     "fvf_code_string = \"\"\"\n",
     "from glayout import MappedPDK, sky130 , gf180\n",
     "# from gdsfactory.cell import cell\n",
-    "from gdsfactory import Component\n",
-    "from gdsfactory.components import text_freetype, rectangle\n",
+    "from glayout.backend import Component\n",
+    "from glayout.backend import rectangle\n",
+    "from gdsfactory.components import text_freetype\n",
     "\n",
     "from glayout import nmos, pmos\n",
     "from glayout import via_stack\n",

tutorial/glayout_tutorial_FVF_part2.ipynb

@@ -113,8 +113,9 @@
    "source": [
     "from glayout import MappedPDK, sky130 , gf180\n",
     "#from gdsfactory.cell import cell\n",
-    "from gdsfactory import Component\n",
-    "from gdsfactory.components import text_freetype, rectangle"
+    "from glayout.backend import Component\n",
+    "from glayout.backend import rectangle\n",
+    "from gdsfactory.components import text_freetype"
    ]
   },
   {

tutorial/glayout_tutorial_INV_part1.ipynb

@@ -164,8 +164,9 @@
    "source": [
     "from glayout import MappedPDK, sky130 , gf180\n",
     "#from gdsfactory.cell import cell\n",
-    "from gdsfactory import Component\n",
-    "from gdsfactory.components import text_freetype, rectangle"
+    "from glayout.backend import Component\n",
+    "from glayout.backend import rectangle\n",
+    "from gdsfactory.components import text_freetype"
    ]
   },
   {
@@ -803,9 +804,10 @@
    "source": [
     "inv_code_string = \"\"\"\n",
     "from glayout import MappedPDK, sky130 , gf180\n",
-    "from gdsfactory.cell import cell\n",
-    "from gdsfactory import Component\n",
-    "from gdsfactory.components import text_freetype, rectangle\n",
+    "from glayout.backend import cell\n",
+    "from glayout.backend import Component\n",
+    "from glayout.backend import rectangle\n",
+    "from gdsfactory.components import text_freetype\n",
     "\n",
     "from glayout import nmos, pmos\n",
     "from glayout import via_stack\n",

tutorial/glayout_tutorial_INV_part2.ipynb

@@ -105,8 +105,9 @@
    "outputs": [],
    "source": [
     "from glayout import MappedPDK, sky130 , gf180\n",
-    "from gdsfactory import Component\n",
-    "from gdsfactory.components import text_freetype, rectangle\n",
+    "from glayout.backend import Component\n",
+    "from glayout.backend import rectangle\n",
+    "from gdsfactory.components import text_freetype\n",
     "\n",
     "import gdsfactory as gf\n",
     "gf.clear_cache()"