1 files changed, 66 insertions, 0 deletions
diff --git a/share/extensions/setup_typography_canvas.py b/share/extensions/setup_typography_canvas.py
new file mode 100755
index 0000000..61d4539
--- /dev/null
+++ b/share/extensions/setup_typography_canvas.py
@@ -0,0 +1,66 @@
+#!/usr/bin/env python
+# coding=utf-8
+#
+# Copyright (C) 2011 Felipe Correa da Silva Sanches
+#
+# 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 inkex
+from inkex import Guide
+
+
+class SetupTypographyCanvas(inkex.EffectExtension):
+    def add_arguments(self, pars):
+        pars.add_argument("-e", "--emsize", type=int, default=1000)
+        pars.add_argument("-c", "--caps", type=int, default=700, help="Caps Height")
+        pars.add_argument("-x", "--xheight", type=int, default=500)
+        pars.add_argument("-a", "--ascender", type=int, default=750)
+        pars.add_argument("-d", "--descender", type=int, default=250)
+
+    def create_horizontal_guideline(self, name, position):
+        return self.svg.add(Guide().move_to(0, position, (0, 1)).update(inkscape__label=name))
+
+    def create_vertical_guideline(self, name, position):
+        return self.svg.add(Guide().move_to(position, 0, (1, 0)).update(inkscape__label=name))
+
+    def effect(self):
+        # Get all the options
+        emsize = self.options.emsize
+        ascender = self.options.ascender
+        caps = self.options.caps
+        xheight = self.options.xheight
+        descender = self.options.descender
+
+        # Get access to main SVG document element
+        self.svg.set("width", str(emsize))
+        self.svg.set("height", str(emsize))
+        self.svg.set("viewBox", "0 0 " + str(emsize) + " " + str(emsize))
+
+        baseline = descender
+        # Create guidelines
+        self.create_horizontal_guideline("baseline", baseline)
+        self.create_horizontal_guideline("ascender", baseline + ascender)
+        self.create_horizontal_guideline("caps", baseline + caps)
+        self.create_horizontal_guideline("xheight", baseline + xheight)
+        self.create_horizontal_guideline("descender", baseline - descender)
+
+        namedview = self.svg.namedview
+        namedview.set('inkscape:document-units', 'px')
+        namedview.set('inkscape:cx', str(emsize / 2.0))
+        namedview.set('inkscape:cy', str(emsize / 2.0))
+
+if __name__ == '__main__':
+    SetupTypographyCanvas().run()