From 196475c81320f2ecd731714dcfb3a29191167d1a Mon Sep 17 00:00:00 2001
From: Nicolas Dufour <nicoduf@yahoo.fr>
Date: Thu, 13 Sep 2012 21:37:54 +0200
Subject: Extensions. New HSL adjust extension (see Bug #979208 ).

(bzr r11665)
---
 share/extensions/Makefile.am          |  4 +-
 share/extensions/color_HSL_adjust.inx | 36 ++++++++++++++++++
 share/extensions/color_HSL_adjust.py  | 69 +++++++++++++++++++++++++++++++++++
 3 files changed, 108 insertions(+), 1 deletion(-)
 create mode 100644 share/extensions/color_HSL_adjust.inx
 create mode 100644 share/extensions/color_HSL_adjust.py

diff --git a/share/extensions/Makefile.am b/share/extensions/Makefile.am
index 74d8d2fd8..16c8a2cc2 100644
--- a/share/extensions/Makefile.am
+++ b/share/extensions/Makefile.am
@@ -26,6 +26,7 @@ extensions = \
 	color_desaturate.py\
 	coloreffect.py\
 	color_grayscale.py\
+	color_HSL_adjust.py\
 	color_lesshue.py\
 	color_lesslight.py\
 	color_lesssaturation.py\
@@ -204,6 +205,7 @@ modules = \
 	color_darker.inx\
 	color_desaturate.inx\
 	color_grayscale.inx\
+	color_HSL_adjust.inx\
 	color_lesshue.inx\
 	color_lesslight.inx\
 	color_lesssaturation.inx\
@@ -228,7 +230,7 @@ modules = \
 	dxf_output.inx \
 	edge3d.inx \
 	embedimage.inx \
-    embedselectedimages.inx \
+	embedselectedimages.inx \
 	eps_input.inx \
 	eqtexsvg.inx \
 	export_gimp_palette.inx \
diff --git a/share/extensions/color_HSL_adjust.inx b/share/extensions/color_HSL_adjust.inx
new file mode 100644
index 000000000..4c0330f53
--- /dev/null
+++ b/share/extensions/color_HSL_adjust.inx
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+  <_name>HSL Adjust</_name>
+  <id>org.inkscape.color.HSL_adjust</id>
+  <dependency type="executable" location="extensions">coloreffect.py</dependency>
+  <dependency type="executable" location="extensions">color_HSL_adjust.py</dependency>
+  <dependency type="executable" location="extensions">simplestyle.py</dependency>
+  <param name="tab" type="notebook">
+    <page name="Options" _gui-text="Options">
+      <param name="hue"        type="int" appearance="full" min="-360" max="360" indent="0" _gui-text="Hue (°):">0</param>
+      <param name="random_h"   type="boolean" _gui-text="Ramdom hue">false</param>
+      <param name="saturation" type="int" appearance="full" min="-100" max="100" indent="0" _gui-text="Saturation (%):">0</param>
+      <param name="random_s"   type="boolean" _gui-text="Ramdom saturation">false</param>
+      <param name="lightness"  type="int" appearance="full" min="-100" max="100" indent="0" _gui-text="Lightness (%):">0</param>
+      <param name="random_l"   type="boolean" _gui-text="Ramdom lightness">false</param>
+    </page>
+    <page name="Help" _gui-text="Help">
+      <_param name="instructions" type="description" xml:space="preserve">Adjusts hue, saturation and lightness in the HSL representation of the selected objects's color.
+Options:
+    * Hue: rotate by degrees (wraps around).
+    * Saturation: add/subtract % (min=-100, max=100).
+    * Lightness: add/subtract % (min=-100, max=100).
+    * Random Hue/Saturation/Lightness: randomize the parameter's value.
+      </_param>
+    </page>
+  </param>    
+  <effect>
+    <object-type>all</object-type>
+    <effects-menu>
+      <submenu _name="Color"/>
+    </effects-menu>
+  </effect>
+  <script>
+    <command reldir="extensions" interpreter="python">color_HSL_adjust.py</command>
+  </script>
+</inkscape-extension>
diff --git a/share/extensions/color_HSL_adjust.py b/share/extensions/color_HSL_adjust.py
new file mode 100644
index 000000000..473c4bd1e
--- /dev/null
+++ b/share/extensions/color_HSL_adjust.py
@@ -0,0 +1,69 @@
+#!/usr/bin/env python
+
+# standard library
+import random
+# local library
+import coloreffect
+import inkex
+
+class C(coloreffect.ColorEffect):
+    def __init__(self):
+        coloreffect.ColorEffect.__init__(self)
+        self.OptionParser.add_option("-x", "--hue",
+            action="store", type="int", 
+            dest="hue", default="0",
+            help="Adjust hue")
+        self.OptionParser.add_option("-s", "--saturation",
+            action="store", type="int", 
+            dest="saturation", default="0",
+            help="Adjust saturation")
+        self.OptionParser.add_option("-l", "--lightness",
+            action="store", type="int", 
+            dest="lightness", default="0",
+            help="Adjust lightness")
+        self.OptionParser.add_option("", "--random_h",
+            action="store", type="inkbool", 
+            dest="random_hue", default=False,
+            help="Randomize hue")
+        self.OptionParser.add_option("", "--random_s",
+            action="store", type="inkbool", 
+            dest="random_saturation", default=False,
+            help="Randomize saturation")
+        self.OptionParser.add_option("", "--random_l",
+            action="store", type="inkbool", 
+            dest="random_lightness", default=False,
+            help="Randomize lightness")
+        self.OptionParser.add_option("--tab",
+            action="store", type="string",
+            dest="tab",
+            help="The selected UI-tab when OK was pressed")
+
+    def clamp(self, minimum, x, maximum):
+        return max(minimum, min(x, maximum))
+        
+    def colmod(self, r, g, b):
+        hsl = self.rgb_to_hsl(r/255.0, g/255.0, b/255.0)
+        #inkex.debug("hsl old: " + str(hsl[0]) + ", " + str(hsl[1]) + ", " + str(hsl[2]))
+        if (self.options.random_hue):
+            hsl[0] = random.random()
+        elif (self.options.hue):
+            hueval = hsl[0] + (self.options.hue / 360.0)
+            hsl[0] = hueval % 1
+        if(self.options.random_saturation):
+            hsl[1] = random.random()
+        elif (self.options.saturation):
+            satval = hsl[1] + (self.options.saturation / 100.0)
+            hsl[1] = self.clamp(0.0, satval, 1.0)
+        if(self.options.random_lightness):
+            hsl[2] = random.random()
+        elif (self.options.lightness):
+            lightval = hsl[2] + (self.options.lightness / 100.0)
+            hsl[2] = self.clamp(0.0, lightval, 1.0)
+        #inkex.debug("hsl new: " + str(hsl[0]) + ", " + str(hsl[1]) + ", " + str(hsl[2]))
+        rgb = self.hsl_to_rgb(hsl[0], hsl[1], hsl[2])
+        return '%02x%02x%02x' % (rgb[0]*255, rgb[1]*255, rgb[2]*255)
+
+c = C()
+c.affect()
+
+# vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 fileencoding=utf-8 textwidth=99
-- 
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