1 files changed, 55 insertions, 0 deletions
diff --git a/lib/extensions/test_swatches.py b/lib/extensions/test_swatches.py
new file mode 100644
index 00000000..a5b12d2f
--- /dev/null
+++ b/lib/extensions/test_swatches.py
@@ -0,0 +1,55 @@
+# Authors: see git history
+#
+# Copyright (c) 2023 Authors
+# Licensed under the GNU GPL version 3.0 or later.  See the file LICENSE for details.
+
+from inkex import errormsg
+
+from ..i18n import _
+from ..svg.tags import EMBROIDERABLE_TAGS
+from .base import InkstitchExtension
+
+
+class TestSwatches(InkstitchExtension):
+    '''
+    This generates swatches from selection by altering one param each time.
+    '''
+    def __init__(self, *args, **kwargs):
+        InkstitchExtension.__init__(self, *args, **kwargs)
+        self.arg_parser.add_argument("--options")
+        self.arg_parser.add_argument("--info")
+
+        self.arg_parser.add_argument("-p", "--param", type=str, default="max_stitch_length_mm", dest="param")
+        self.arg_parser.add_argument("-s", "--start-value", type=float, default="max_stitch_length_mm", dest="start_value")
+        self.arg_parser.add_argument("-i", "--step", type=float, default="0.5", dest="step")
+        self.arg_parser.add_argument("-r", "--num-rows", type=int, default="5", dest="num_rows")
+        self.arg_parser.add_argument("-c", "--num-cols", type=int, default="5", dest="num_cols")
+        self.arg_parser.add_argument("-d", "--spacing", type=float, default="1", dest="spacing")
+
+    def effect(self):
+        if not self.svg.selection:
+            errormsg(_("Please select one or more elements."))
+            return
+
+        for element in self.svg.selection:
+            dimensions = element.bounding_box()
+            param_value = self.options.start_value
+            for rows in range(0, self.options.num_rows):
+                for cols in range(0, self.options.num_cols):
+                    new_element = element.duplicate()
+                    translate_x = cols * dimensions.width + cols * self.options.spacing
+                    translate_y = rows * dimensions.height + rows * self.options.spacing
+                    new_element.transform.add_translate((translate_x, translate_y))
+                    if new_element.TAG == "g":
+                        for embroidery_element in new_element.iterdescendants(EMBROIDERABLE_TAGS):
+                            # Since this won't effect functionality, we can simply ignore the fact
+                            # that this will also set the value to guide lines etc.
+                            self._set_param(embroidery_element, param_value)
+                    else:
+                        self._set_param(new_element, param_value)
+                    param_value += self.options.step
+            # remove old element
+            element.getparent().remove(element)
+
+    def _set_param(self, element, value):
+        element.set(f'inkstitch:{ self.options.param }', value)