2 files changed, 45 insertions, 0 deletions
diff --git a/lib/extensions/__init__.py b/lib/extensions/__init__.py
index d5cfc8f8..d8ae5a79 100644
--- a/lib/extensions/__init__.py
+++ b/lib/extensions/__init__.py
@@ -36,6 +36,7 @@ from .lettering_custom_font_dir import LetteringCustomFontDir
 from .lettering_font_sample import LetteringFontSample
 from .lettering_force_lock_stitches import LetteringForceLockStitches
 from .lettering_generate_json import LetteringGenerateJson
+from .lettering_kerning import LetteringKerning
 from .lettering_remove_kerning import LetteringRemoveKerning
 from .lettering_set_color_sort_index import LetteringSetColorSortIndex
 from .lettering_update_json_glyphlist import LetteringUpdateJsonGlyphlist
@@ -105,6 +106,7 @@ __all__ = extensions = [About,
                         LetteringFontSample,
                         LetteringForceLockStitches,
                         LetteringGenerateJson,
+                        LetteringKerning,
                         LetteringRemoveKerning,
                         LetteringSetColorSortIndex,
                         LetteringUpdateJsonGlyphlist,
diff --git a/lib/extensions/lettering_kerning.py b/lib/extensions/lettering_kerning.py
new file mode 100644
index 00000000..23fc75fc
--- /dev/null
+++ b/lib/extensions/lettering_kerning.py
@@ -0,0 +1,43 @@
+# 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 wx
+from inkex import Layer
+
+from ..gui.lettering_kerning import LetteringKerningPanel
+from ..gui.simulator import SplitSimulatorWindow
+from ..i18n import _
+from ..svg import get_correction_transform
+from ..utils.svg_data import get_pagecolor
+from .base import InkstitchExtension
+
+
+class LetteringKerning(InkstitchExtension):
+    '''
+    This extension helps font creators to generate an output of every glyph from a selected font
+    '''
+    def effect(self):
+        layer = Layer()
+        self.svg.add(layer)
+        transform = get_correction_transform(layer, child=True)
+        layer.transform = transform
+
+        metadata = self.get_inkstitch_metadata()
+        background_color = get_pagecolor(self.svg.namedview)
+
+        app = wx.App()
+        frame = SplitSimulatorWindow(
+            title=_("Ink/Stitch Font Kerning Tool"),
+            panel_class=LetteringKerningPanel,
+            layer=layer,
+            metadata=metadata,
+            background_color=background_color,
+            target_duration=1
+        )
+
+        frame.Show()
+        app.MainLoop()
+
+        self.svg.remove(layer)