<div>FYI</div><div><br></div>---------- Forwarded message ----------<br>From: <b class="gmail_sendername">Ayush Goyal</b> <span dir="ltr"><<a href="mailto:ayush@seeta.in">ayush@seeta.in</a>></span><br>Date: Tue, Oct 19, 2010 at 1:28 AM<br>
Subject: Re: [Sugar-devel] [PATCH Paint Activity] Added Invert Color Effect to Paint Activity (OLPC #2495)<br>To: <br>Cc: sugar-devel <<a href="mailto:sugar-devel@lists.sugarlabs.org">sugar-devel@lists.sugarlabs.org</a>><br>
<br><br><div class="im"> Gonzalo,<br><br>Thank you for the review and feedback.<br><br>Please find the revised patch attached at <a href="http://dev.laptop.org/ticket/2495" target="_blank">http://dev.laptop.org/ticket/2495</a>.<br>
<br>The icon developed can be found at <a href="http://seeta.in/dextrose/olpc2495/" target="_blank">http://seeta.in/dextrose/olpc2495/</a>.<br><br>Looking forward to your review on the revised patch.<br><br>Appreciate your support.<br>
<br>Regards,<br><br>Ayush<br></div>_______________________________________________<br><br><br><div class="gmail_quote">On Mon, Oct 18, 2010 at 9:24 PM, Manusheel Gupta <span dir="ltr"><<a href="mailto:manu@seeta.in">manu@seeta.in</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Gonzalo,<div><br></div><div>Thank you for the feedback.</div><div><br></div><div>This mistake was identified in Ayush's patch. He has configured sugar-lint and will run pep8 over the code.</div>
<div><br></div><div>I have also asked him to attach the patch at the ticket. Do you want him to open a separate ticket at Sugarlabs bug tracker, and upload the patch over there?</div>
<div><br></div><div>Regards,</div><div><br></div><div>Manu</div><div><div></div><div class="h5"><div><br><br><div class="gmail_quote">On Mon, Oct 18, 2010 at 9:14 PM, Gonzalo Odiard <span dir="ltr"><<a href="mailto:godiard@gmail.com" target="_blank">godiard@gmail.com</a>></span> wrote:<br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Ayush, please run pylint and pep8 over your code and attach to the ticket.<br>Thanks.<br><br>Gonzalo<div><div></div><div>

<br><br><br><div class="gmail_quote">On Sat, Oct 16, 2010 at 7:10 PM, Ayush Goyal <span dir="ltr"><<a href="mailto:ayush@seeta.in" target="_blank">ayush@seeta.in</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex"><br>
Signed-off-by: Ayush Goyal <<a href="mailto:ayush@seeta.in" target="_blank">ayush@seeta.in</a>><br>
---<br>
 Area.py                 |   40 +++++<br>
 icons/invert-colors.svg |  387 +++++++++++++++++++++++++++++++++++++++++++++++<br>
 toolbox.py              |   22 ++-<br>
 3 files changed, 441 insertions(+), 8 deletions(-)<br>
 create mode 100644 icons/invert-colors.svg<br>
<br>
diff --git a/Area.py b/Area.py<br>
index 2dca7da..7c7f4c5 100644<br>
--- a/Area.py<br>
+++ b/Area.py<br>
@@ -70,6 +70,7 @@ import pango<br>
 from fill import *<br>
 from Desenho import Desenho<br>
 from urlparse import urlparse<br>
+import numpy<br>
<br>
 ##Tools and events manipulation are handle with this class.<br>
<br>
@@ -833,6 +834,45 @@ class Area(gtk.DrawingArea):<br>
         self.queue_draw()<br>
         if not self.selmove:<br>
             self.enableUndo(widget)<br>
+<br>
+    def invert_colors(self,widget):<br>
+        """Apply invert color effect.<br>
+<br>
+            @param  self -- the Area object (GtkDrawingArea)<br>
+            @param  widget -- the Area object (GtkDrawingArea)<br>
+<br>
+        """<br>
+<br>
+        width, height = self.window.get_size()<br>
+<br>
+        if self.selmove:<br>
+            size = self.pixmap_sel.get_size()<br>
+            pix = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB,False,8,size[0],size[1])<br>
+            pix.get_from_drawable(self.pixmap_sel,gtk.gdk.colormap_get_system(),0,0,0,0,size[0],size[1])<br>
+        else:<br>
+            pix = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB,False,8,width,height)<br>
+            pix.get_from_drawable(self.pixmap,gtk.gdk.colormap_get_system(),0,0,0,0,width,height)<br>
+<br>
+        pix_manip2=pix.get_pixels_array()<br>
+        pix_manip=numpy.ones(pix_manip2.shape,dtype=numpy.uint8)*255<br>
+        pix_manip2=pix_manip-pix_manip2<br>
+        pix=gtk.gdk.pixbuf_new_from_array(pix_manip2,gtk.gdk.COLORSPACE_RGB,8)<br>
+<br>
+<br>
+        if self.selmove:<br>
+            self.pixmap_sel.draw_pixbuf(self.gc,pix,0,0,0,0,size[0],size[1],dither=gtk.gdk.RGB_DITHER_NORMAL,x_dither=0,y_dither=0)<br>
+<br>
+            self.pixmap_temp.draw_drawable(self.gc,self.pixmap,0,0,0,0,width,height)<br>
+            self.pixmap_temp.draw_drawable(self.gc,self.pixmap_sel,0,0,self.orig_x,self.orig_y,size[0],size[1])<br>
+            self.pixmap_temp.draw_rectangle(self.gc_selection,False,self.orig_x,self.orig_y,size[0],size[1])<br>
+            self.pixmap_temp.draw_rectangle(self.gc_selection1,False,self.orig_x-1,self.orig_y-1,size[0]+2,size[1]+2)<br>
+<br>
+        else:<br>
+            self.pixmap.draw_pixbuf(self.gc,pix,0,0,0,0,width,height,dither=gtk.gdk.RGB_DITHER_NORMAL,x_dither=0,y_dither=0)<br>
+<br>
+        self.queue_draw()<br>
+        if not self.selmove:<br>
+            self.enableUndo(widget)<br>
<br>
     def _pixbuf2Image(self, pb):<br>
         """change a pixbuf to RGB image<br>
diff --git a/icons/invert-colors.svg b/icons/invert-colors.svg<br>
new file mode 100644<br>
index 0000000..373ca70<br>
--- /dev/null<br>
+++ b/icons/invert-colors.svg<br>
@@ -0,0 +1,387 @@<br>
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+<svg<br>
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+   xmlns:svg="<a href="http://www.w3.org/2000/svg" target="_blank">http://www.w3.org/2000/svg</a>"<br>
+   xmlns="<a href="http://www.w3.org/2000/svg" target="_blank">http://www.w3.org/2000/svg</a>"<br>
+   xmlns:xlink="<a href="http://www.w3.org/1999/xlink" target="_blank">http://www.w3.org/1999/xlink</a>"<br>
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+   sodipodi:docname="invert-colors.svg"><metadata<br>
+     id="metadata50"><rdf:RDF><cc:Work<br>
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\ No newline at end of file<br>
diff --git a/toolbox.py b/toolbox.py<br>
index 299181b..0c3105c 100644<br>
--- a/toolbox.py<br>
+++ b/toolbox.py<br>
@@ -1230,6 +1230,8 @@ class ImageToolbar(gtk.Toolbar):<br>
 class EffectsToolbar(gtk.Toolbar):<br>
<br>
     _EFFECT_GRAYSCALE = 'grayscale'<br>
+    _INVERT_COLOR = 'invert-colors'<br>
+<br>
     # Rainbow acts as a tool in Area, and it has to be described as a dict<br>
     _EFFECT_RAINBOW = {<br>
         'name'          : 'rainbow',<br>
@@ -1256,10 +1258,16 @@ class EffectsToolbar(gtk.Toolbar):<br>
         self._effect_rainbow = DrawToolButton('effect-rainbow',activity.tool_group,_('Rainbow'))<br>
         self.insert(self._effect_rainbow, -1)<br>
         self._configure_palette(self._effect_rainbow, self._EFFECT_RAINBOW)<br>
-<br>
+<br>
+<br>
         separator = gtk.SeparatorToolItem()<br>
         self.insert(separator, -1)<br>
<br>
+        self._invert_colors = ToolButton('invert-colors')<br>
+        self.insert(self._invert_colors, -1)<br>
+        self._invert_colors.show()<br>
+        self._invert_colors.set_tooltip(_('Invert Colors'))<br>
+<br>
         """<br>
         #FIXME: Must be implemented<br>
         self._black_and_white = ToolButton('black_and_white')<br>
@@ -1267,16 +1275,11 @@ class EffectsToolbar(gtk.Toolbar):<br>
         self._black_and_white.show()<br>
         self._black_and_white.connect('clicked', test_connect, activity, 'effect-black-and-white')<br>
         self._black_and_white.set_tooltip(_('Black and White'))<br>
-<br>
-        self._invert_colors = ToolButton('invert_colors')<br>
-        self.insert(self._invert_colors, -1)<br>
-        self._invert_colors.show()<br>
-        self._invert_colors.connect('clicked', test_connect, activity, 'invert-colors')<br>
-        self._invert_colors.set_tooltip(_('Invert Colors'))<br>
-<br>
         """<br>
+<br>
         self._effect_grayscale.connect('clicked', self.grayscale)<br>
         self._effect_rainbow.connect('clicked', self.rainbow)<br>
+        self._invert_colors.connect('clicked', self.invert_colors)<br>
<br>
     ##Make the colors be in grayscale<br>
     def grayscale(self, widget):<br>
@@ -1285,6 +1288,9 @@ class EffectsToolbar(gtk.Toolbar):<br>
     ##Like the brush, but change it color when painting<br>
     def rainbow(self, widget):<br>
         self._activity.area.set_tool(self._EFFECT_RAINBOW)<br>
+<br>
+    def invert_colors(self,widget):<br>
+        self._activity.area.invert_colors(widget)<br>
<br>
         # setting cursor: moved to Area<br>
<font color="#888888"><br>
--<br>
1.7.1<br>
<br>
</font></blockquote></div><br><br clear="all"><br></div></div>-- <br><font color="#888888">Gonzalo Odiard<br><br><br>
</font></blockquote></div><br></div>
</div></div></blockquote></div><br>