From cc61295afa301666b8485262935267d38a8c6ca9 Mon Sep 17 00:00:00 2001
From: leyghisbb <info@leyghis.de>
Date: Thu, 22 Apr 2021 15:12:18 +0200
Subject: [PATCH] Updated offset paths extension

---
 extensions/fablabchemnitz/offset_paths.inx    | 73 +++++++++++++++++++
 .../{ofsplot.py => offset_paths.py}           | 22 ++++--
 extensions/fablabchemnitz/ofsplot.inx         | 44 -----------
 3 files changed, 90 insertions(+), 49 deletions(-)
 create mode 100644 extensions/fablabchemnitz/offset_paths.inx
 rename extensions/fablabchemnitz/{ofsplot.py => offset_paths.py} (87%)
 delete mode 100644 extensions/fablabchemnitz/ofsplot.inx

diff --git a/extensions/fablabchemnitz/offset_paths.inx b/extensions/fablabchemnitz/offset_paths.inx
new file mode 100644
index 00000000..b5f60355
--- /dev/null
+++ b/extensions/fablabchemnitz/offset_paths.inx
@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+    <name>Offset Paths</name>
+    <id>fablabchemnitz.de.offset_paths</id>
+    <param name="tab" type="notebook">
+        <page name="tab_settings" gui-text="Settings">
+		<param name="unit" type="optiongroup" appearance="combo" gui-text="Unit">
+			<option value="mm">mm</option>
+			<option value="cm">cm</option>
+			<option value="in">in</option>
+			<option value="pt">pt</option>
+			<option value="px">px</option>
+			<option value="pc">pc</option>
+		</param>
+		<param name="offset_count" type="int" min="1" max="100000" gui-text="Number of offset paths">1</param>
+		<param name="init_offset" type="float" precision="4" min="-1000" max="+1000" gui-text="Initial offset from original path">1.0000</param>
+		<param name="offset" type="float"  precision="4" min="-1000" max="+1000" gui-text="Offset between two paths">1.0000</param>
+		<param name="offset_increase" type="float" precision="4" min="-1000" max="+1000" gui-text="Offset increase per iteration">0.0000</param>
+		<param name="miterlimit" type="float" min="0.0" max="1000" gui-text="Miter limit">3.0</param>
+		<param name="clipperscale" type="int" min="2" max="65.536" gui-text="Scaling factor" gui-description="Should be a multiplicator of 2, like 2^4=16 or 2^10=1024. The higher the scale factor the higher the quality.">1024</param>
+		<param name="jointype" appearance="combo" type="optiongroup" default="2" gui-text="Join type">
+			<option value="0">Square</option>
+			<option value="1">Round</option>
+			<option value="2">Miter</option>
+		</param>
+		<param name="endtype" appearance="combo" type="optiongroup" default="3" gui-text="End type">
+			<option value="0">Closed Polygon</option>
+			<option value="1">Closed Line</option>
+			<option value="2">Open Butt</option>
+			<option value="3">Open Square</option>
+			<option value="4">Open Round</option>
+		</param>
+		<param name="copy_org" type="bool" gui-text="Keep original path" gui-description="If enabled, keeps original path as a copy">false</param>
+        </page>
+        <page name="tab_about" gui-text="About">
+            <label appearance="header">Offset Paths</label>
+            <label>Create offset for open or closed paths. Python library 'pyclipper' needs to be installed. Use 'Flatten Bezier' extension in advance of this plugin.</label>
+            <label>2020 - 2021 / written by Mario Voigt (Stadtfabrikanten e.V. / FabLab Chemnitz)</label>
+            <spacer/>
+            <label appearance="header">Online Documentation</label>
+            <label appearance="url">https://y.stadtfabrikanten.org/offsetpaths</label>
+            <spacer/>
+            <label appearance="header">Contributing</label>
+            <label appearance="url">https://gitea.fablabchemnitz.de/MarioVoigt/mightyscape-1.X</label>
+            <label appearance="url">mailto:mario.voigt@stadtfabrikanten.org</label>
+            <spacer/>
+            <label appearance="header">MightyScape Extension Collection</label>
+            <label>This piece of software is part of the MightyScape for Inkscape Extension Collection and is licensed under GNU GPL v3</label>
+            <label appearance="url">https://y.stadtfabrikanten.org/mightyscape-overview</label>
+        </page>
+        <page name="tab_donate" gui-text="Donate">
+            <label appearance="header">Coffee + Pizza</label>
+            <label>We are the Stadtfabrikanten, running the FabLab Chemnitz since 2016. A FabLab is an open workshop that gives people access to machines and digital tools like 3D printers, laser cutters and CNC milling machines.</label>
+            <spacer/>           
+            <label>You like our work and want to support us? You can donate to our non-profit organization by different ways:</label>
+            <label appearance="url">https://y.stadtfabrikanten.org/donate</label>
+            <spacer/>
+            <label>Thanks for using our extension and helping us!</label>
+            <image>000_about_fablabchemnitz.svg</image>
+        </page>
+    </param>
+    <effect>
+        <object-type>all</object-type>
+        <effects-menu>
+            <submenu name="FabLab Chemnitz">
+				<submenu name="Shape/Pattern from existing Path(s)"/>
+			</submenu>
+        </effects-menu>
+    </effect>
+    <script>
+        <command location="inx" interpreter="python">offset_paths.py</command>
+    </script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/ofsplot.py b/extensions/fablabchemnitz/offset_paths.py
similarity index 87%
rename from extensions/fablabchemnitz/ofsplot.py
rename to extensions/fablabchemnitz/offset_paths.py
index 3a73d1a0..5aa59ea8 100644
--- a/extensions/fablabchemnitz/ofsplot.py
+++ b/extensions/fablabchemnitz/offset_paths.py
@@ -1,14 +1,26 @@
 #!/usr/bin/env python3
 
+"""
+Based on 
+- https://github.com/TimeTravel-0/ofsplot
+
+Author: Mario Voigt / FabLab Chemnitz
+Mail: mario.voigt@stadtfabrikanten.org
+Last Patch: 22.04.2021
+License: GNU GPL v3
+
+"""
+
 import inkex
 import math
 from inkex.paths import CubicSuperPath
 import re
 import pyclipper
 
-class ofsplot(inkex.EffectExtension):
+class OffsetPaths(inkex.EffectExtension):
     
     def add_arguments(self, pars):
+        pars.add_argument('--tab')
         pars.add_argument('--unit')
         pars.add_argument("--offset_count", type=int, default=1, help="Number of offset paths")
         pars.add_argument("--offset", type=float, default=1.000, help="Offset amount")
@@ -18,10 +30,10 @@ class ofsplot(inkex.EffectExtension):
         pars.add_argument("--jointype", default="2", help="Join type")
         pars.add_argument("--endtype", default="3", help="End type")
         pars.add_argument("--miterlimit", type=float, default=3.0, help="Miter limit")
-        pars.add_argument("--clipperscale", type=float, default=1024.0, help="Scaling factor")
+        pars.add_argument("--clipperscale", type=int, default=1024, help="Scaling factor. Should be a multiplicator of 2, like 2^4=16 or 2^10=1024. The higher the scale factor the higher the quality.")
         
     def effect(self):
-        unit_factor = 1.0 / self.svg.uutounit(1.0,self.options.unit)
+        unit_factor = 1.0 / self.svg.uutounit(1.0, self.options.unit)
         paths = self.svg.selection.filter(inkex.PathElement).values()
         count = sum(1 for path in paths)
         paths = self.svg.selection.filter(inkex.PathElement).values() #we need to call this twice because the sum function consumes the generator
@@ -95,7 +107,7 @@ class ofsplot(inkex.EffectExtension):
                     for sub in p:
                         new.append(sub)
 
-                path.set('d',CubicSuperPath(new))
+                path.set('d', CubicSuperPath(new))
 
 if __name__ == '__main__':
-    ofsplot().run()
+    OffsetPaths().run()
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/ofsplot.inx b/extensions/fablabchemnitz/ofsplot.inx
deleted file mode 100644
index c85ec1ae..00000000
--- a/extensions/fablabchemnitz/ofsplot.inx
+++ /dev/null
@@ -1,44 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
-    <name>Ofsplot (Offset Paths)</name>
-    <id>fablabchemnitz.de.ofsplot</id>
-	<param name="unit" type="optiongroup" appearance="combo" gui-text="Unit">
-		<option value="mm">mm</option>
-		<option value="cm">cm</option>
-		<option value="in">in</option>
-		<option value="pt">pt</option>
-		<option value="px">px</option>
-		<option value="pc">pc</option>
-	</param>
-    <param name="offset_count" type="int" min="1" max="100000" gui-text="Number of offset paths:">1</param>
-    <param name="offset" type="float"  precision="4" min="-1000" max="+1000" gui-text="Offset between two paths:">1.0000</param>
-    <param name="init_offset" type="float" precision="4" min="-1000" max="+1000" gui-text="Initial offset from original path:">1.0000</param>
-    <param name="copy_org" type="bool" gui-text="Copy original path (=keep it)">false</param>
-    <param name="offset_increase" type="float" precision="4" min="-1000" max="+1000" gui-text="Offset increase per iteration:">0.0000</param>
-    <param name="miterlimit" type="float" min="0.0" max="1000" gui-text="Miter limit">3.0</param>
-    <param name="clipperscale" type="float" min="0.0" max="9999.0" gui-text="Scaling factor">1024.0</param>
-    <param name="jointype" appearance="combo" type="optiongroup" default="2" gui-text="Join type">
-        <option value="0">Square</option>
-        <option value="1">Round</option>
-        <option value="2">Miter</option>
-    </param>
-    <param name="endtype" appearance="combo" type="optiongroup" default="3" gui-text="End type">
-        <option value="0">Closed Polygon</option>
-        <option value="1">Closed Line</option>
-        <option value="2">Open Butt</option>
-        <option value="3">Open Square</option>
-        <option value="4">Open Round</option>
-    </param>
-    <param name="settingsHelp" type="description">Python library pyclipper needs to be installed. Use Flatten Bezier plugin in advance of this plugin.</param>
-    <effect>
-        <object-type>all</object-type>
-        <effects-menu>
-            <submenu name="FabLab Chemnitz">
-				<submenu name="Shape/Pattern from existing Path(s)"/>
-			</submenu>
-        </effects-menu>
-    </effect>
-    <script>
-        <command location="inx" interpreter="python">ofsplot.py</command>
-    </script>
-</inkscape-extension>
\ No newline at end of file