1 files changed, 48 insertions, 0 deletions
diff --git a/chalk/plugins/viewplugins/scripting/samples/python/invert.py b/chalk/plugins/viewplugins/scripting/samples/python/invert.py
new file mode 100644
index 00000000..7a642760
--- /dev/null
+++ b/chalk/plugins/viewplugins/scripting/samples/python/invert.py
@@ -0,0 +1,48 @@
+# This file is part of Chalk
+#
+# Copyright (c) 2005-2006 Cyrille Berger <cberger@cberger.net>
+#
+#  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.
+
+class Inverter:
+    def __init__(self):
+        try:
+            import krosschalkcore
+        except:
+            raise "Import of the ChalkCore module failed."
+        doc = krosschalkcore.get("ChalkDocument")
+        script = krosschalkcore.get("ChalkScript")
+        image = doc.getImage()
+        layer = image.getActivePaintLayer()
+        if(layer.colorSpaceId() != "RGBA" ):
+            raise("This script works only for 8bit RGBA layers")
+        width = layer.getWidth()
+        height = layer.getHeight()
+        script.setProgressTotalSteps(width * height)
+        layer.beginPainting("invert")
+        it = layer.createRectIterator( 0, 0, width, height )
+        print "kikoo\n"
+        finesh = it.isDone()
+        while (not finesh) :
+            p = it.getRGBA()
+            p[0] = 255 - p[0]
+            p[1] = 255 - p[1]
+            p[2] = 255 - p[2]
+            it.setRGBA(p)
+            script.incProgress()
+            finesh = it.next()
+        layer.endPainting()
+
+Inverter()