Auto route for running stitch (#1638)

* add auto route for running stitch
* introduce free motion commands

Co-authored-by: Lex Neva <github.com@lexneva.name>

1 files changed, 65 insertions, 0 deletions

diff --git a/lib/extensions/auto_run.py b/lib/extensions/auto_run.py
new file mode 100644
index 00000000..02997fd0
--- /dev/null
+++ b/lib/extensions/auto_run.py
@@ -0,0 +1,65 @@
+# Authors: see git history
+#
+# Copyright (c) 2010 Authors
+# Licensed under the GNU GPL version 3.0 or later.  See the file LICENSE for details.
+
+import inkex
+
+from ..elements import Stroke
+from ..i18n import _
+from ..stitches.auto_run import autorun
+from .commands import CommandsExtension
+
+
+class AutoRun(CommandsExtension):
+    COMMANDS = ["trim"]
+
+    def __init__(self, *args, **kwargs):
+        CommandsExtension.__init__(self, *args, **kwargs)
+
+        self.arg_parser.add_argument("-b", "--break_up", dest="break_up", type=inkex.Boolean, default=True)
+        self.arg_parser.add_argument("-p", "--preserve_order", dest="preserve_order", type=inkex.Boolean, default=False)
+        self.arg_parser.add_argument("-o", "--options", dest="options", type=str, default="")
+        self.arg_parser.add_argument("-i", "--info", dest="help", type=str, default="")
+
+    def effect(self):
+        elements = self.check_selection()
+        if not elements:
+            return
+
+        starting_point = self.get_starting_point()
+        ending_point = self.get_ending_point()
+
+        break_up = self.options.break_up
+
+        autorun(elements, self.options.preserve_order, break_up, starting_point, ending_point, self.options.trim)
+
+    def get_starting_point(self):
+        return self.get_command_point("run_start")
+
+    def get_ending_point(self):
+        return self.get_command_point("run_end")
+
+    def get_command_point(self, command_type):
+        command = None
+        for stroke in self.elements:
+            command = stroke.get_command(command_type)
+            # return the first occurence directly
+            if command:
+                return command.target_point
+
+    def check_selection(self):
+        if not self.get_elements():
+            return
+
+        if not self.svg.selection:
+            # L10N auto-route running stitch columns extension
+            inkex.errormsg(_("Please select one or more stroke elements."))
+            return False
+
+        elements = [element for element in self.elements if isinstance(element, Stroke)]
+        if len(elements) == 0:
+            inkex.errormsg(_("Please select at least one stroke element."))
+            return False
+
+        return elements