1 files changed, 81 insertions, 0 deletions
diff --git a/lib/extensions/letters_to_font.py b/lib/extensions/letters_to_font.py
new file mode 100644
index 00000000..158d0d9f
--- /dev/null
+++ b/lib/extensions/letters_to_font.py
@@ -0,0 +1,81 @@
+# Authors: see git history
+#
+# Copyright (c) 2021 Authors
+# Licensed under the GNU GPL version 3.0 or later.  See the file LICENSE for details.
+
+import os
+from pathlib import Path
+
+import inkex
+from inkex import errormsg
+
+from ..commands import ensure_symbol
+from ..i18n import _
+from ..stitch_plan import generate_stitch_plan
+from ..svg import get_correction_transform
+from ..svg.tags import INKSCAPE_GROUPMODE, INKSCAPE_LABEL, SVG_PATH_TAG
+from .base import InkstitchExtension
+
+
+class LettersToFont(InkstitchExtension):
+    '''
+    This extension will create a json file to store a custom directory path for additional user fonts
+    '''
+    def __init__(self, *args, **kwargs):
+        InkstitchExtension.__init__(self, *args, **kwargs)
+        self.arg_parser.add_argument("-d", "--font-dir", type=str, default="", dest="font_dir")
+        self.arg_parser.add_argument("-f", "--file-format", type=str, default="", dest="file_format")
+        self.arg_parser.add_argument("-c", "--import-commands", type=inkex.Boolean, default=False, dest="import_commands")
+
+    def effect(self):
+        font_dir = self.options.font_dir
+        file_format = self.options.file_format
+
+        if not os.path.isdir(font_dir):
+            errormsg(_("Font directory not found. Please specify an existing directory."))
+
+        glyphs = list(Path(font_dir).rglob(file_format))
+        if not glyphs:
+            glyphs = list(Path(font_dir).rglob(file_format.lower()))
+
+        document = self.document.getroot()
+        for glyph in glyphs:
+            letter = self.get_glyph_element(glyph)
+            label = "GlyphLayer-%s" % letter.get(INKSCAPE_LABEL, ' ').split('.')[0][-1]
+            group = inkex.Group(attrib={
+                INKSCAPE_LABEL: label,
+                INKSCAPE_GROUPMODE: "layer",
+                "transform": get_correction_transform(document, child=True)
+            })
+
+            # remove color block groups if we import without commands
+            # there will only be one object per color block anyway
+            if not self.options.import_commands:
+                for element in letter.iter(SVG_PATH_TAG):
+                    group.insert(0, element)
+            else:
+                group.insert(0, letter)
+
+            document.insert(0, group)
+            group.set('style', 'display:none')
+
+        # users may be confused if they get an empty document
+        # make last letter visible again
+        group.set('style', None)
+
+        # In most cases trims are inserted with the imported letters.
+        # Let's make sure the trim symbol exists in the defs section
+        ensure_symbol(document, 'trim')
+
+        self.insert_baseline(document)
+
+    def get_glyph_element(self, glyph):
+        stitch_plan = generate_stitch_plan(str(glyph), self.options.import_commands)
+        # we received a stitch plan wrapped in an svg document, we only need the stitch_plan group
+        # this group carries the name of the file, so we can search for it.
+        stitch_plan = stitch_plan.xpath('.//*[@inkscape:label="%s"]' % os.path.basename(glyph), namespaces=inkex.NSS)[0]
+        stitch_plan.attrib.pop(INKSCAPE_GROUPMODE)
+        return stitch_plan
+
+    def insert_baseline(self, document):
+        document.namedview.new_guide(position=0.0, name="baseline")