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diff --git a/mvc/widgets/osx/drawing.py b/mvc/widgets/osx/drawing.py
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+++ b/mvc/widgets/osx/drawing.py
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+# @Base: Miro - an RSS based video player application
+# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011
+# Participatory Culture Foundation
+#
+# 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
+#
+# In addition, as a special exception, the copyright holders give
+# permission to link the code of portions of this program with the OpenSSL
+# library.
+#
+# You must obey the GNU General Public License in all respects for all of
+# the code used other than OpenSSL. If you modify file(s) with this
+# exception, you may extend this exception to your version of the file(s),
+# but you are not obligated to do so. If you do not wish to do so, delete
+# this exception statement from your version. If you delete this exception
+# statement from all source files in the program, then also delete it here.
+
+"""miro.plat.frontend.widgets.drawing -- Draw on Views."""
+
+import math
+
+from Foundation import *
+from AppKit import *
+#from Quartz import *
+from objc import YES, NO, nil
+
+
+class ImageSurface:
+    """See https://develop.participatoryculture.org/index.php/WidgetAPI for a description of the API for this class."""
+    def __init__(self, image):
+        """Create a new ImageSurface."""
+        self.image = image.nsimage.copy()
+        self.width = image.width
+        self.height = image.height
+
+    def get_size(self):
+        return self.width, self.height
+
+    def draw(self, context, x, y, width, height, fraction=1.0):
+        if self.width == 0 or self.height == 0:
+            return
+        current_context = NSGraphicsContext.currentContext()
+        current_context.setShouldAntialias_(YES)
+        current_context.setImageInterpolation_(NSImageInterpolationHigh)
+        current_context.saveGraphicsState()
+        flip_context(y + height)
+        dest_rect = NSMakeRect(x, 0, width, height)
+        if self.width >= width and self.height >= height:
+            # drawing to area smaller than our image
+            source_rect = NSMakeRect(0, 0, width, height)
+            self.image.drawInRect_fromRect_operation_fraction_(
+                dest_rect, source_rect, NSCompositeSourceOver, fraction)
+        else:
+            # drawing to area larger than our image.  Need to tile it.
+            NSColor.colorWithPatternImage_(self.image).set()
+            current_context.setPatternPhase_(
+                    self._calc_pattern_phase(context, x, y))
+            NSBezierPath.fillRect_(dest_rect)
+        current_context.restoreGraphicsState()
+
+    def draw_rect(self, context, dest_x, dest_y, source_x, source_y, width,
+            height, fraction=1.0):
+        if width == 0 or height == 0:
+            return
+        current_context = NSGraphicsContext.currentContext()
+        current_context.setShouldAntialias_(YES)
+        current_context.setImageInterpolation_(NSImageInterpolationHigh)
+        current_context.saveGraphicsState()
+        flip_context(dest_y + height)
+        dest_y = 0
+        dest_rect = NSMakeRect(dest_x, dest_y, width, height)
+        source_rect = NSMakeRect(source_x, self.height-source_y-height,
+                                 width, height)
+        self.image.drawInRect_fromRect_operation_fraction_(
+                dest_rect, source_rect, NSCompositeSourceOver, fraction)
+        current_context.restoreGraphicsState()
+
+    def _calc_pattern_phase(self, context, x, y):
+        """Calculate the pattern phase to draw tiled images.
+
+        When we draw with a pattern, we want the image in the pattern to start
+        at the top-left of where we're drawing to.  This function does the
+        dirty work necessary.
+
+        :returns: NSPoint to send to setPatternPhase_
+        """
+        # convert to view coords
+        view_point = NSPoint(context.origin.x + x, context.origin.y + y)
+        # convert to window coords, which is setPatternPhase_ uses
+        return context.view.convertPoint_toView_(view_point, nil)
+
+def convert_cocoa_color(color):
+    rgb = color.colorUsingColorSpaceName_(NSDeviceRGBColorSpace)
+    return (rgb.redComponent(), rgb.greenComponent(), rgb.blueComponent())
+
+def convert_widget_color(color, alpha=1.0):
+    return NSColor.colorWithDeviceRed_green_blue_alpha_(color[0], color[1],
+                                                        color[2], alpha)
+def flip_context(height):
+    """Make the current context's coordinates flipped.
+
+    This is useful for drawing images, since they use the normal cocoa
+    coordinates and we use flipped versions.
+
+    :param height: height of the current area we are drawing to.
+    """
+    xform = NSAffineTransform.transform()
+    xform.translateXBy_yBy_(0, height)
+    xform.scaleXBy_yBy_(1.0, -1.0)
+    xform.concat()
+
+class DrawingStyle(object):
+    """See https://develop.participatoryculture.org/index.php/WidgetAPI for a description of the API for this class."""
+    def __init__(self, bg_color=None, text_color=None):
+        self.use_custom_style = True
+        if text_color is None:
+            self.text_color = self.default_text_color
+        else:
+            self.text_color = convert_cocoa_color(text_color)
+        if bg_color is None:
+            self.bg_color = self.default_bg_color
+        else:
+            self.bg_color = convert_cocoa_color(bg_color)
+
+    default_text_color = convert_cocoa_color(NSColor.textColor())
+    default_bg_color = convert_cocoa_color(NSColor.textBackgroundColor())
+
+class DrawingContext:
+    """See https://develop.participatoryculture.org/index.php/WidgetAPI for a description of the API for this class."""
+    def __init__(self, view, drawing_area, rect):
+        self.view = view
+        self.path = NSBezierPath.bezierPath()
+        self.color = NSColor.blackColor()
+        self.width = drawing_area.size.width
+        self.height = drawing_area.size.height
+        self.origin = drawing_area.origin
+        if drawing_area.origin != NSZeroPoint:
+            xform = NSAffineTransform.transform()
+            xform.translateXBy_yBy_(drawing_area.origin.x,
+                    drawing_area.origin.y)
+            xform.concat()
+
+    def move_to(self, x, y):
+        self.path.moveToPoint_(NSPoint(x, y))
+
+    def rel_move_to(self, dx, dy):
+        self.path.relativeMoveToPoint_(NSPoint(dx, dy))
+
+    def line_to(self, x, y):
+        self.path.lineToPoint_(NSPoint(x, y))
+
+    def rel_line_to(self, dx, dy):
+        self.path.relativeLineToPoint_(NSPoint(dx, dy))
+
+    def curve_to(self, x1, y1, x2, y2, x3, y3):
+        self.path.curveToPoint_controlPoint1_controlPoint2_(
+                NSPoint(x3, y3), NSPoint(x1, y1), NSPoint(x2, y2))
+
+    def rel_curve_to(self, dx1, dy1, dx2, dy2, dx3, dy3):
+        self.path.relativeCurveToPoint_controlPoint1_controlPoint2_(
+                NSPoint(dx3, dy3), NSPoint(dx1, dy1), NSPoint(dx2, dy2))
+
+    def arc(self, x, y, radius, angle1, angle2):
+        angle1 = (angle1 * 360) / (2 * math.pi)
+        angle2 = (angle2 * 360) / (2 * math.pi)
+        center = NSPoint(x, y)
+        self.path.appendBezierPathWithArcWithCenter_radius_startAngle_endAngle_(center, radius, angle1, angle2)
+
+    def arc_negative(self, x, y, radius, angle1, angle2):
+        angle1 = (angle1 * 360) / (2 * math.pi)
+        angle2 = (angle2 * 360) / (2 * math.pi)
+        center = NSPoint(x, y)
+        self.path.appendBezierPathWithArcWithCenter_radius_startAngle_endAngle_clockwise_(center, radius, angle1, angle2, YES)
+
+    def rectangle(self, x, y, width, height):
+        rect = NSMakeRect(x, y, width, height)
+        self.path.appendBezierPathWithRect_(rect)
+
+    def set_color(self, color, alpha=1.0):
+        self.color = convert_widget_color(color, alpha)
+        self.color.set()
+
+    def set_shadow(self, color, opacity, offset, blur_radius):
+        shadow = NSShadow.alloc().init()
+        # shadow offset is always in the cocoa coordinates, so we need to
+        # reverse the y part
+        shadow.setShadowOffset_(NSPoint(offset[0], -offset[1]))
+        shadow.setShadowBlurRadius_(blur_radius)
+        shadow.setShadowColor_(convert_widget_color(color, opacity))
+        shadow.set()
+
+    def set_line_width(self, width):
+        self.path.setLineWidth_(width)
+
+    def stroke(self):
+        self.path.stroke()
+        self.path.removeAllPoints()
+
+    def stroke_preserve(self):
+        self.path.stroke()
+
+    def fill(self):
+        self.path.fill()
+        self.path.removeAllPoints()
+
+    def fill_preserve(self):
+        self.path.fill()
+
+    def clip(self):
+        self.path.addClip()
+        self.path.removeAllPoints()
+
+    def save(self):
+        NSGraphicsContext.currentContext().saveGraphicsState()
+
+    def restore(self):
+        NSGraphicsContext.currentContext().restoreGraphicsState()
+
+    def gradient_fill(self, gradient):
+        self.gradient_fill_preserve(gradient)
+        self.path.removeAllPoints()
+
+    def gradient_fill_preserve(self, gradient):
+        context = NSGraphicsContext.currentContext()
+        context.saveGraphicsState()
+        self.path.addClip()
+        gradient.draw()
+        context.restoreGraphicsState()
+
+class Gradient(object):
+    """See https://develop.participatoryculture.org/index.php/WidgetAPI for a description of the API for this class."""
+    def __init__(self, x1, y1, x2, y2):
+        self.x1, self.y1, self.x2, self.y2 = x1, y1, x2, y2
+        self.start_color = None
+        self.end_color = None
+
+    def set_start_color(self, (red, green, blue)):
+        self.start_color = (red, green, blue)
+
+    def set_end_color(self, (red, green, blue)):
+        self.end_color = (red, green, blue)
+
+    def draw(self):
+        start_color = convert_widget_color(self.start_color)
+        end_color = convert_widget_color(self.end_color)
+        nsgradient = NSGradient.alloc().initWithStartingColor_endingColor_(start_color, end_color)
+        start_point = NSPoint(self.x1, self.y1)
+        end_point = NSPoint(self.x2, self.y2)
+        nsgradient.drawFromPoint_toPoint_options_(start_point, end_point, 0)
+
+class DrawingMixin(object):
+    def calc_size_request(self):
+        return self.size_request(self.view.layout_manager)
+
+    # squish width / squish height only make sense on GTK
+    def set_squish_width(self, setting):
+        pass
+
+    def set_squish_height(self, setting):
+        pass
+
+    # Default implementations for methods that subclasses override.
+
+    def is_opaque(self):
+        return False
+
+    def size_request(self, layout_manager):
+        return 0, 0
+
+    def draw(self, context, layout_manager):
+        pass
+
+    def viewport_repositioned(self):
+        # since this is a Mixin class, we want to make sure that our other
+        # classes see the viewport_repositioned() call.
+        super(DrawingMixin, self).viewport_repositioned()
+        self.queue_redraw()