From cca66b9ec4e494c1d919bff0f71a820d8afab1fa Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 20:24:48 +0200
Subject: Adding upstream version 1.2.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 share/extensions/perfectboundcover.py | 132 ++++++++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100755 share/extensions/perfectboundcover.py

(limited to 'share/extensions/perfectboundcover.py')

diff --git a/share/extensions/perfectboundcover.py b/share/extensions/perfectboundcover.py
new file mode 100755
index 0000000..b223364
--- /dev/null
+++ b/share/extensions/perfectboundcover.py
@@ -0,0 +1,132 @@
+#!/usr/bin/env python
+# coding=utf-8
+#
+# Copyright (C) 2007 John Bintz, jcoswell@cosellproductions.org
+#
+# 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.
+#
+"""
+Greate perfect bound cover
+"""
+import textwrap
+
+import inkex
+from inkex import Guide
+
+
+def caliper_to_ppi(caliper):
+    return 2 / caliper
+
+
+def bond_weight_to_ppi(bond_weight):
+    return caliper_to_ppi(bond_weight * 0.0002)
+
+
+def points_to_ppi(points):
+    return caliper_to_ppi(points / 1000.0)
+
+
+class PerfectBoundCover(inkex.EffectExtension):
+    def add_arguments(self, pars):
+        pars.add_argument("--width", type=float, default=6.0, help="cover width (in)")
+        pars.add_argument("--height", type=float, default=9.0, help="cover height (in)")
+        pars.add_argument("--pages", type=int, default=64, help="number of pages")
+        pars.add_argument(
+            "--paperthicknessmeasurement",
+            default="ppi",
+            help="""Measurement for determining the thickness of the spine.
+                          Options: 'ppi': pages per inch; 'caliper': caliper (inches);
+                            'points': caliper in points (1/1000 in);
+                            'bond_weight': Bond (pounds);
+                            'width': absolute width of spine (in)""",
+        )
+        pars.add_argument(
+            "--paperthickness", type=float, default=0.0, help="paper thickness"
+        )
+        pars.add_argument(
+            "--coverthicknessmeasurement",
+            default="ppi",
+            help="Measurement for determining the thickness of the cover. For "
+            "available options, see --paperthicknessmeasurement",
+        )
+        pars.add_argument(
+            "--coverthickness", type=float, default=0.0, help="cover thickness"
+        )
+        pars.add_argument("--bleed", type=float, default=0.25, help="cover bleed (in)")
+        pars.add_argument(
+            "--removeguides", type=inkex.Boolean, default=False, help="remove guide"
+        )
+
+    def effect(self):
+        switch = {
+            "ppi": lambda x: x,
+            "caliper": caliper_to_ppi,
+            "bond_weight": bond_weight_to_ppi,
+            "points": points_to_ppi,
+            "width": lambda x: x,
+        }
+
+        if self.options.paperthickness > 0:
+            if self.options.paperthicknessmeasurement == "width":
+                paper_spine = self.options.paperthickness
+            else:
+                paper_spine = self.options.pages / switch[
+                    self.options.paperthicknessmeasurement
+                ](self.options.paperthickness)
+        else:
+            paper_spine = 0
+
+        if self.options.coverthickness > 0:
+            if self.options.coverthicknessmeasurement == "width":
+                cover_spine = self.options.coverthickness
+            else:
+                cover_spine = 4.0 / switch[self.options.coverthicknessmeasurement](
+                    self.options.coverthickness
+                )
+        else:
+            cover_spine = 0
+
+        spine_width = paper_spine + cover_spine
+
+        document_width = (self.options.bleed + self.options.width * 2) + spine_width
+        document_height = self.options.bleed * 2 + self.options.height
+
+        root = self.document.getroot()
+
+        root.set("width", "%sin" % document_width)
+        root.set("height", "%sin" % document_height)
+
+        guides = []
+
+        guides.append(["horizontal", self.options.bleed])
+        guides.append(["horizontal", document_height - self.options.bleed])
+        guides.append(["vertical", self.options.bleed])
+        guides.append(["vertical", document_width - self.options.bleed])
+        guides.append(["vertical", (document_width / 2) - (spine_width / 2)])
+        guides.append(["vertical", (document_width / 2) + (spine_width / 2)])
+
+        namedview = self.svg.namedview
+        if namedview is not None:
+            if self.options.removeguides:
+                for node in namedview.get_guides():
+                    node.delete()
+            for guide in guides:
+                newguide = namedview.add(Guide())
+                newguide.set("orientation", guide[0])
+                newguide.set("position", "%f" % (guide[1] * 96))
+
+
+if __name__ == "__main__":
+    PerfectBoundCover().run()
-- 
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