1 files changed, 76 insertions, 0 deletions
diff --git a/share/extensions/hpgl_input.py b/share/extensions/hpgl_input.py
new file mode 100755
index 0000000..0c998d6
--- /dev/null
+++ b/share/extensions/hpgl_input.py
@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+# coding=utf-8
+#
+# Copyright (C) 2013 Public Domain
+#               2018 Martin Owens <doctormo@gmail.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+
+import sys
+import hpgl_decoder
+import inkex
+from inkex.localization import inkex_gettext as _
+
+
+class HpglInput(inkex.InputExtension):
+    def add_arguments(self, pars):
+        pars.add_argument(
+            "--resolutionX", type=float, default=1016.0, help="Resolution X (dpi)"
+        )
+        pars.add_argument(
+            "--resolutionY", type=float, default=1016.0, help="Resolution Y (dpi)"
+        )
+        pars.add_argument(
+            "--showMovements",
+            type=inkex.Boolean,
+            default=False,
+            help="Show Movements between paths",
+        )
+
+    def load(self, stream):
+        return b";".join(line.strip() for line in stream).decode()
+
+    def effect(self):
+        # interpret HPGL data
+        myHpglDecoder = hpgl_decoder.hpglDecoder(self.document, self.options)
+        self.document = None
+
+        try:
+            doc, warnings = myHpglDecoder.get_svg()
+        except Exception as inst:
+            if inst.args[0] == "NO_HPGL_DATA":
+                # issue error if no hpgl data found
+                inkex.errormsg(_("No HPGL data found."))
+                exit(1)
+            else:
+                type, value, traceback = sys.exc_info()
+                raise ValueError("", type, value).with_traceback(traceback)
+
+        # issue warning if unknown commands where found
+        if "UNKNOWN_COMMANDS" in warnings:
+            inkex.errormsg(
+                _(
+                    "The HPGL data contained unknown (unsupported) commands, "
+                    "there is a possibility that the drawing is missing some content."
+                )
+            )
+
+        # deliver document to inkscape
+        self.document = doc
+
+
+if __name__ == "__main__":
+    HpglInput().run()