Add svg updater extension (#2252)

* add updater extension
* update legacy underlay_fill_angle: comma to space

2 files changed, 42 insertions, 1 deletions

diff --git a/lib/extensions/__init__.py b/lib/extensions/__init__.py
index cc47f151..25d3214c 100644
--- a/lib/extensions/__init__.py
+++ b/lib/extensions/__init__.py
@@ -33,7 +33,6 @@ from .lettering_force_lock_stitches import LetteringForceLockStitches
 from .lettering_generate_json import LetteringGenerateJson
 from .lettering_remove_kerning import LetteringRemoveKerning
 from .letters_to_font import LettersToFont
-from .zigzag_line_to_satin import ZigzagLineToSatin
 from .object_commands import ObjectCommands
 from .object_commands_toggle_visibility import ObjectCommandsToggleVisibility
 from .output import Output
@@ -51,6 +50,8 @@ from .simulator import Simulator
 from .stitch_plan_preview import StitchPlanPreview
 from .stitch_plan_preview_undo import StitchPlanPreviewUndo
 from .stroke_to_lpe_satin import StrokeToLpeSatin
+from .update_svg import UpdateSvg
+from .zigzag_line_to_satin import ZigzagLineToSatin
 from .zip import Zip
 
 from.lettering_along_path import LetteringAlongPath
@@ -91,6 +92,7 @@ __all__ = extensions = [StitchPlanPreview,
                         Troubleshoot,
                         RemoveEmbroiderySettings,
                         Cleanup,
+                        UpdateSvg,
                         BreakApart,
                         GradientBlocks,
                         ApplyThreadlist,
diff --git a/lib/extensions/update_svg.py b/lib/extensions/update_svg.py
new file mode 100644
index 00000000..51960cb2
--- /dev/null
+++ b/lib/extensions/update_svg.py
@@ -0,0 +1,39 @@
+# Authors: see git history
+#
+# Copyright (c) 2010 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 ..update import update_inkstitch_document
+from .base import InkstitchExtension
+
+
+class UpdateSvg(InkstitchExtension):
+
+    def __init__(self, *args, **kwargs):
+        InkstitchExtension.__init__(self, *args, **kwargs)
+        # TODO: When there are more legacy versions than only one, this can be transformed in a user input
+        # inkstitch_svg_version history: 1 -> v2.3.0
+        self.update_from = 0
+
+    def effect(self):
+        if not self.svg.selection:
+            errormsg(_('Please select at least one element to update. '
+                       'This extension is designed to help you update copy and pasted elements from old designs.'))
+
+        # set the file version to the update_from value, so that the updater knows where to start from
+        # the updater will then reset it to the current version after the update has finished
+        metadata = self.get_inkstitch_metadata()
+        metadata['inkstitch_svg_version'] = self.update_from
+
+        update_inkstitch_document(self.document, self.get_selection())
+
+    def get_selection(self):
+        selection = []
+        for element in self.svg.selection:
+            selection.append(element)
+            for descendant in element.iterdescendants():
+                selection.append(descendant)
+        return selection