From d5e508b32ecb3fca87f653dc05e7bcb43e6f5b79 Mon Sep 17 00:00:00 2001
From: Aleksey Lim <alsroot@activitycentral.org>
Date: Tue, 21 Jun 2011 19:43:57 +0000
Subject: Move toolkit dependency back to the master

---
(limited to 'toolkit/pixbuf.py')

diff --git a/toolkit/pixbuf.py b/toolkit/pixbuf.py
new file mode 100644
index 0000000..c3bb7d1
--- /dev/null
+++ b/toolkit/pixbuf.py
@@ -0,0 +1,116 @@
+# Copyright (C) 2009, Aleksey Lim
+#
+# 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 St, Fifth Floor, Boston, MA  02110-1301  USA
+
+"""gtk.gdk.Pixbuf extensions"""
+
+import re
+import cStringIO
+import gtk
+import rsvg
+import cairo
+import logging
+
+from sugar.graphics import style
+from sugar.graphics.xocolor import XoColor, is_valid
+from sugar.util import LRU
+
+
+def to_file(pixbuf):
+    """Convert pixbuf object to file object"""
+
+    def push(pixbuf, buffer):
+        buffer.write(pixbuf)
+
+    buffer = cStringIO.StringIO()
+    pixbuf.save_to_callback(push, 'png', user_data=buffer)
+    buffer.seek(0)
+
+    return buffer
+
+def to_str(pixbuf):
+    """Convert pixbuf object to string"""
+    return to_file(pixbuf).getvalue()
+
+def from_str(str):
+    """Convert string to pixbuf object"""
+
+    loader = gtk.gdk.pixbuf_loader_new_with_mime_type('image/png')
+
+    try:
+        loader.write(str)
+    except Exception, e:
+        logging.error('pixbuf.from_str: %s' % e)
+        return None
+    finally:
+        loader.close()
+
+    return loader.get_pixbuf()
+
+
+def at_size_with_ratio(pixbuf, width, height, type=gtk.gdk.INTERP_BILINEAR):
+    image_width = pixbuf.get_width()
+    image_height = pixbuf.get_height()
+
+    ratio_width = float(width) / image_width
+    ratio_height = float(height) / image_height
+    ratio = min(ratio_width, ratio_height)
+
+    if ratio_width != ratio:
+        ratio_width = ratio
+        width = int(image_width * ratio)
+    elif ratio_height != ratio:
+        ratio_height = ratio
+        height = int(image_height * ratio)
+
+    return pixbuf.scale_simple(width, height, type)
+
+def from_svg_at_size(filename=None, width=None, height=None, handle=None,
+        keep_ratio=True):
+    """Scale and load SVG into pixbuf"""
+
+    if not handle:
+        handle = rsvg.Handle(filename)
+
+    dimensions = handle.get_dimension_data()
+    icon_width = dimensions[0]
+    icon_height = dimensions[1]
+
+    if icon_width != width or icon_height != height:
+        ratio_width = float(width) / icon_width
+        ratio_height = float(height) / icon_height
+
+        if keep_ratio:
+            ratio = min(ratio_width, ratio_height)
+            if ratio_width != ratio:
+                ratio_width = ratio
+                width = int(icon_width * ratio)
+            elif ratio_height != ratio:
+                ratio_height = ratio
+                height = int(icon_height * ratio)
+    else:
+        ratio_width = 1
+        ratio_height = 1
+
+    surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, width, height)
+    context = cairo.Context(surface)
+    context.scale(ratio_width, ratio_height)
+    handle.render_cairo(context)
+
+    loader = gtk.gdk.pixbuf_loader_new_with_mime_type('image/png')
+    surface.write_to_png(loader)
+    loader.close()
+
+    return loader.get_pixbuf()
--
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