new project

22 files changed, 1714 insertions, 0 deletions

diff --git a/NEWS b/NEWS
new file mode 100644
index 0000000..5c11c5e
--- /dev/null
+++ b/NEWS
@@ -0,0 +1,4 @@
+1
+
+Napier's bones were invented by John Napier (1550-1617), a Scottish
+mathematician and scientist. They help you to do multiplication.
diff --git a/NapierActivity.py b/NapierActivity.py
new file mode 100644
index 0000000..4954a40
--- /dev/null
+++ b/NapierActivity.py
@@ -0,0 +1,412 @@
+# -*- coding: utf-8 -*-
+#Copyright (c) 2011 Walter Bender
+
+# 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 3 of the License, or
+# (at your option) any later version.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the
+# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
+import gtk
+import gobject
+import os
+
+import sugar
+from sugar.activity import activity
+from sugar import profile
+try:
+    from sugar.graphics.toolbarbox import ToolbarBox
+    _have_toolbox = True
+except ImportError:
+    _have_toolbox = False
+
+if _have_toolbox:
+    from sugar.bundle.activitybundle import ActivityBundle
+    from sugar.activity.widgets import ActivityToolbarButton
+    from sugar.activity.widgets import StopButton
+    from sugar.graphics.toolbarbox import ToolbarButton
+
+from sugar.graphics.toolbutton import ToolButton
+from sugar.graphics.menuitem import MenuItem
+
+from sprites import Sprites, Sprite
+
+from gettext import gettext as _
+
+try:
+    from sugar.graphics import style
+    GRID_CELL_SIZE = style.GRID_CELL_SIZE
+except ImportError:
+    GRID_CELL_SIZE = 0
+
+SERVICE = 'org.sugarlabs.NapierActivity'
+IFACE = SERVICE
+PATH = '/org/augarlabs/NapierActivity'
+BONE_WIDTH = 101
+BONE_HEIGHT = 901
+
+
+def _svg_header(scale=1.0):
+    ''' Return standard header for SVG bones '''
+    return '<?xml version="1.0" encoding="UTF-8" standalone="no"?>\
+<!-- Created with Emacs (http://gnu.org/) -->\
+<svg\
+   xmlns:dc="http://purl.org/dc/elements/1.1/"\
+   xmlns:cc="http://creativecommons.org/ns#"\
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"\
+   xmlns:svg="http://www.w3.org/2000/svg"\
+   xmlns="http://www.w3.org/2000/svg"\
+   version="1.1"\
+   width="%f"\
+   height="%f">' % (101 * scale, 901 * scale)
+
+
+def _svg_footer():
+    ''' Return standard footer for SVG bones '''
+    return '</svg>\
+'
+
+def _svg_single_box(a, scale=1.0):
+    ''' Return standard top-of-column box for SVG bones '''
+    return '    <g>\
+      <rect\
+	  width="%f"\
+	  height="%f"\
+	  x="%f"\
+	  y="%f"\
+	  style="fill:none;stroke:#000000;stroke-width:%f;stroke-linecap:square;stroke-linejoin:round;stroke-miterlimit:%f;stroke-opacity:1;stroke-dasharray:none" />\
+      <text\
+      style="font-size:%fpx;font-style:normal;font-weight:bold;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans;text-align:center;text-anchor:middle">\
+	<tspan x="%f" y="%f">\
+	  %d\
+	</tspan>\
+      </text>\
+    </g>' % (99 * scale, 99 * scale, scale, scale, 2 * scale,
+             4 * scale, 40 * scale, 55 * scale, 65 * scale, a)
+
+
+def _svg_double_box(a, b, y, scale=1.0):
+    ''' Return standard double-digit box for SVG bones '''
+    return '    <g>\
+      <rect\
+	  width="%f"\
+	  height="%f"\
+	  x="%f"\
+	  y="%f"\
+	  style="fill:none;stroke:#000000;stroke-width:%f;stroke-linecap:square;stroke-linejoin:round;stroke-miterlimit:%f;stroke-opacity:1;stroke-dasharray:none" />\
+      <line\
+	  x1="%f"\
+	  y1="%f"\
+	  x2="%f"\
+	  y2="%f"\
+	  style="fill:none;stroke:#000000;stroke-width:%f;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:%f;stroke-opacity:1;stroke-dasharray:none" />\
+      <text\
+	  style="font-size:%fpx;font-style:normal;font-weight:bold;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans">\
+	<tspan x="%f" y="%f">\
+	  %d\
+	</tspan>\
+      </text>\
+      <text\
+      style="font-size:%fpx;font-style:normal;font-weight:bold;fill:#000000;fill-opacity:1;stroke:none;font-family:Sans">\
+	<tspan x="%f" y="%f">\
+	  %d\
+	</tspan>\
+      </text>\
+    </g>' % (99 * scale, 99 * scale, scale, y * scale, 2 * scale,
+             4 * scale, scale, (y + 99) * scale, 99 * scale,
+             (y + 1) * scale, 2 * scale, 4 * scale, 40 * scale, 12 * scale,
+             (y + 51) * scale, a, 40 * scale, 52 * scale, (y + 81) * scale, b)
+
+
+def _bone_factory(value, scale=1.0):
+    svg = _svg_header(scale=scale)
+    svg += _svg_single_box(value, scale=scale)
+    for i in range(9):
+        if i > 0:
+            j = (i + 1) * value
+            svg += _svg_double_box(int(j / 10), j % 10, i * 100, scale=scale)
+    return svg + _svg_footer()
+
+
+def _svg_str_to_pixbuf(svg_string):
+    ''' Load pixbuf from SVG string '''
+    pl = gtk.gdk.PixbufLoader('svg')
+    pl.write(svg_string)
+    pl.close()
+    pixbuf = pl.get_pixbuf()
+    return pixbuf
+
+
+def _load_svg_from_file(file_path, width, height):
+    '''Create a pixbuf from SVG in a file. '''
+    return gtk.gdk.pixbuf_new_from_file_at_size(file_path, width, height)
+
+
+def _button_factory(icon_name, tooltip, callback, toolbar, cb_arg=None,
+                    accelerator=None):
+    '''Factory for making toolbar buttons'''
+    my_button = ToolButton(icon_name)
+    my_button.set_tooltip(tooltip)
+    my_button.props.sensitive = True
+    if accelerator is not None:
+        my_button.props.accelerator = accelerator
+    if cb_arg is not None:
+        my_button.connect('clicked', callback, cb_arg)
+    else:
+        my_button.connect('clicked', callback)
+    if hasattr(toolbar, 'insert'):  # the main toolbar
+        toolbar.insert(my_button, -1)
+    else:  # or a secondary toolbar
+        toolbar.props.page.insert(my_button, -1)
+    my_button.show()
+    return my_button
+
+
+def _label_factory(label, toolbar):
+    ''' Factory for adding a label to a toolbar '''
+    my_label = gtk.Label(label)
+    my_label.set_line_wrap(True)
+    my_label.show()
+    toolitem = gtk.ToolItem()
+    toolitem.add(my_label)
+    toolbar.insert(toolitem, -1)
+    toolitem.show()
+    return my_label
+
+
+def _separator_factory(toolbar, visible=True, expand=False):
+    ''' Factory for adding a separator to a toolbar '''
+    separator = gtk.SeparatorToolItem()
+    separator.props.draw = visible
+    separator.set_expand(expand)
+    toolbar.insert(separator, -1)
+    separator.show()
+
+
+class NapierActivity(activity.Activity):
+    ''' Napier's bones: Napier's bones were invented by John Napier
+    (1550-1617), a Scottish mathematician and scientist. They help you
+    to do multiplication. '''
+
+    # TODO: Define your own bone.
+
+    def __init__(self, handle):
+        ''' Initialize the toolbars and the work surface '''
+        super(NapierActivity, self).__init__(handle)
+
+        if os.path.exists(os.path.join('~', 'Activities', 'Napier.activity')):
+            self._bone_path = os.path.join('~', 'Activities', 'Napier.activity',
+                                      'bones')
+        else:
+            self._bone_path = os.path.join('.', 'bones')
+
+        self._bones = []
+        self._bone_images = [None, None, None, None, None, None, None, None,
+                             None, None]
+        self._blank_image = None
+        self._number = 0
+        self._number_of_bones = 0
+        self._circles = [None, None]
+        self._ovals = []
+
+        self._setup_toolbars(_have_toolbox)
+        self._setup_canvas()
+        self._setup_workspace()
+
+    def _setup_canvas(self):
+        ''' Create a canvas '''
+        self._canvas = gtk.DrawingArea()
+        self._canvas.set_size_request(gtk.gdk.screen_width(),
+                                      gtk.gdk.screen_height())
+        self.set_canvas(self._canvas)
+        self._canvas.show()
+        self.show_all()
+
+        self._canvas.set_flags(gtk.CAN_FOCUS)
+        self._canvas.add_events(gtk.gdk.BUTTON_PRESS_MASK)
+        self._canvas.add_events(gtk.gdk.BUTTON_RELEASE_MASK)
+        self._canvas.add_events(gtk.gdk.POINTER_MOTION_MASK)
+        self._canvas.connect("expose-event", self._expose_cb)
+        self._canvas.connect("motion-notify-event", self._mouse_move_cb)
+        # self._canvas.connect("key_press_event", self._key_press_cb)
+
+    def _setup_workspace(self):
+        ''' Add the bones. '''
+        self._width = gtk.gdk.screen_width()
+        self._height = int(gtk.gdk.screen_height() - (GRID_CELL_SIZE * 2))
+        self._scale = self._height * 1.0 / BONE_HEIGHT
+        self._bone_width = int(BONE_WIDTH * self._scale)
+        self._bone_height = int(BONE_HEIGHT * self._scale)
+
+        # Generate the sprites we'll need...
+        self._sprites = Sprites(self._canvas)
+        self._bone_index = Sprite(self._sprites, 0, 0, _load_svg_from_file(
+                os.path.join(self._bone_path, 'bones-index.svg'),
+                self._bone_width, self._bone_height))
+        self._max_bones = int(self._width / self._bone_width) - 1
+        self._blank_image = _load_svg_from_file(
+                os.path.join(self._bone_path, 'blank-bone.svg'),
+                self._bone_width, self._bone_height)
+        for bones in range(self._max_bones):
+            self._bones.append(Sprite(self._sprites, bones * self._bone_width,
+                                      0, self._blank_image))
+        circle_image = _load_svg_from_file(
+            os.path.join(self._bone_path, 'circle.svg'), int(self._scale * 45),
+            int(self._scale * 45))
+        self._circles[0] = Sprite(self._sprites, 0, -100, circle_image)
+        self._circles[1] = Sprite(self._sprites, 0, -100, circle_image)
+        oval_image = _load_svg_from_file(
+            os.path.join(self._bone_path, 'oval.svg'), int(self._scale * 129),
+            int(self._scale * 92))
+        for bones in range(self._max_bones - 1):
+            self._ovals.append(Sprite(self._sprites, 0, -100, oval_image))
+
+    def _setup_toolbars(self, have_toolbox):
+        ''' Setup the toolbars. '''
+
+        self.max_participants = 1  # no sharing
+
+        if have_toolbox:
+            toolbox = ToolbarBox()
+
+            # Activity toolbar
+            activity_button = ActivityToolbarButton(self)
+
+            toolbox.toolbar.insert(activity_button, 0)
+            activity_button.show()
+
+            self._bones_toolbar = gtk.Toolbar()
+            self._bones_toolbar_button = ToolbarButton(label=_('Select a bone'),
+                                                       page=self._bones_toolbar,
+                                                       icon_name='bones')
+
+            self._bones_toolbar_button.show()
+            toolbox.toolbar.insert(self._bones_toolbar_button, -1)
+            self.set_toolbar_box(toolbox)
+            toolbox.show()
+            self.toolbar = toolbox.toolbar
+
+        else:
+            # Use pre-0.86 toolbar design
+            self._bones_toolbar = gtk.Toolbar()
+            self.toolbar = gtk.Toolbar()
+            toolbox = activity.ActivityToolbox(self)
+            self.set_toolbox(toolbox)
+            toolbox.add_toolbar(_('Bones'), self._bones_toolbar)
+            toolbox.add_toolbar(_('Results'), self.toolbar)
+            toolbox.show()
+            toolbox.set_current_toolbar(1)
+
+        _separator_factory(self.toolbar)
+
+        self._new_calc_button = _button_factory(
+            'new-game', _('Clear'), self._new_calc_cb, self.toolbar)
+
+        self._status = _label_factory('', self.toolbar)
+
+        _button_factory('number-0', _('zero'), self._number_cb,
+                        self._bones_toolbar, cb_arg=0)
+
+        _button_factory('number-1', _('one'), self._number_cb,
+                        self._bones_toolbar, cb_arg=1)
+
+        _button_factory('number-2', _('two'), self._number_cb,
+                        self._bones_toolbar, cb_arg=2)
+
+        _button_factory('number-3', _('three'), self._number_cb,
+                        self._bones_toolbar, cb_arg=3)
+
+        _button_factory('number-4', _('four'), self._number_cb,
+                        self._bones_toolbar, cb_arg=4)
+
+        _button_factory('number-5', _('five'), self._number_cb,
+                        self._bones_toolbar, cb_arg=5)
+
+        _button_factory('number-6', _('six'), self._number_cb,
+                        self._bones_toolbar, cb_arg=6)
+
+        _button_factory('number-7', _('seven'), self._number_cb,
+                        self._bones_toolbar, cb_arg=7)
+
+        _button_factory('number-8', _('eight'), self._number_cb,
+                        self._bones_toolbar, cb_arg=8)
+
+        _button_factory('number-9', _('nine'), self._number_cb,
+                        self._bones_toolbar, cb_arg=9)
+
+        if _have_toolbox:
+            _separator_factory(toolbox.toolbar, False, True)
+
+            stop_button = StopButton(self)
+            stop_button.props.accelerator = '<Ctrl>q'
+            toolbox.toolbar.insert(stop_button, -1)
+            stop_button.show()
+            self._bones_toolbar_button.set_expanded(True)
+
+    def _new_calc_cb(self, button=None):
+        ''' Start a new calculation. '''
+        for bone in range(self._max_bones):
+            self._bones[bone].images[0] = self._blank_image
+            self._bones[bone].inval()
+        self._number_of_bones = 0
+        self._number = 0
+        self._status.set_label('')
+        return
+
+    def _number_cb(self, button=None, value=0):
+        ''' Try to add a digit. '''
+        if self._number_of_bones == self._max_bones:
+            return
+        self._number_of_bones += 1
+        if self._bone_images[value] is None:
+            self._bone_images[value] = _svg_str_to_pixbuf(
+                _bone_factory(value, scale=self._scale))
+        self._bones[self._number_of_bones].images[0] = self._bone_images[value]
+        self._bones[self._number_of_bones].inval()
+        self._number = self._number * 10 + value
+
+    def _mouse_move_cb(self, win, event):
+        ''' Determine which row we are in and then calculate the product. '''
+        win.grab_focus()
+        x, y = map(int, event.get_coords())
+        factor = int(y / self._bone_width)  # The row determines a factor
+
+        if self._number == 0 or factor == 0:
+            self._status.set_label('')
+            self._circles[0].move((0, -100))
+            self._circles[1].move((0, -100))
+            for number in range(self._max_bones):
+                self._ovals[number].move((0, -100))
+        else:
+            c0dx = int(4 * self._scale)
+            c0dy = int(12 * self._scale)
+            c1dx = int(44 * self._scale)
+            c1dy = int(42 * self._scale)
+            odx = int(42 * self._scale)
+            ody = int(2 * self._scale)
+            self._circles[0].move((self._bone_width + c0dx,
+                                   factor * self._bone_width + c0dy))
+            self._circles[1].move((
+                    self._number_of_bones * self._bone_width + c1dx,
+                    factor * self._bone_width + c1dy))
+            for number in range(self._number_of_bones - 1):
+                self._ovals[number].move(((number + 1) * self._bone_width + odx,
+                                          factor * self._bone_width + ody))
+            self._status.set_label('%d × %d = %d' % (
+                    factor + 1, self._number, (factor + 1) * self._number))
+        return True
+
+    def _key_press_cb(self, win, event):
+        ''' TODO: Add bones by typing numbers '''
+        return True
+
+    def _expose_cb(self, win, event):
+        self._sprites.redraw_sprites()
+        return True
+
+    def _destroy_cb(self, win, event):
+        gtk.main_quit()
diff --git a/activity/activity-napier.svg b/activity/activity-napier.svg
new file mode 100644
index 0000000..cbfc4c0
--- /dev/null
+++ b/activity/activity-napier.svg
@@ -0,0 +1,37 @@
+<?xml version="1.0" ?><!DOCTYPE svg  PUBLIC '-//W3C//DTD SVG 1.1//EN'  'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd' [
+	<!ENTITY stroke_color "#000">
+	<!ENTITY fill_color "#eee">
+]><svg height="55px" viewBox="0 0 55 55" width="55px" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" stroke-linecap="round" stroke-linejoin="round" stroke-width="3.5" stroke="&stroke_color;" fill="&fill_color;">
+  <g
+     transform="translate(-164.9317,-522.38248)"
+     id="layer1">
+    <path
+       d="m 172.31971,536.76347 c -0.72411,-2.08754 -3.85535,-2.66829 -4.57016,-4.75911 -0.54398,-1.59114 0.41111,-4.84994 1.17519,-6.34548 0.87849,-1.71948 3.58403,-1.89878 5.48419,-2.11515 2.90308,-0.33058 4.65817,4.0255 5.87592,3.83372 1.55514,-0.1023 2.2545,-2.48793 3.7867,-2.77614 2.1694,-0.40808 4.92014,0.0599 6.39823,1.71856 1.68249,1.88803 1.99295,5.13094 1.17518,7.53525 -0.58154,1.70978 -3.24117,2.02778 -3.91728,3.70153 -1.51719,3.75593 0.59363,8.10493 0.5223,12.16216 -0.0785,4.46388 -2.44397,9.11811 -1.0446,13.35194 0.64576,1.9538 3.46637,2.65253 4.04785,4.62691 0.51535,1.74982 0.13809,3.85051 -0.78345,5.4201 -0.77839,1.32577 -2.19739,2.33161 -3.65613,2.77614 -1.41951,0.43258 -3.07626,0.32499 -4.43959,-0.26439 -1.52949,-0.66121 -2.02542,-3.10643 -3.65612,-3.43714 -1.72831,-0.35049 -2.54848,1.76353 -4.30901,1.85077 -2.0667,0.1024 -5.18389,-0.11769 -6.65938,-1.58637 -1.38558,-1.37919 -1.76507,-3.72751 -1.56691,-5.68449 0.15485,-1.52924 1.08998,-2.94065 2.08922,-4.09812 0.69927,-0.81 2.11477,-0.89977 2.61152,-1.85076 1.58723,-3.03868 -0.0538,-6.87906 0.13057,-10.3114 0.24699,-4.59719 -0.0601,-8.61145 1.30576,-13.74853 z"
+       id="path3060"
+       style="fill:&fill_color;;fill-opacity:1;stroke:&stroke_color;;stroke-width:2.4120214;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+    <text
+       x="174.17461"
+       y="554.1217"
+       transform="scale(0.99384853,1.0061895)"
+       id="text3062"
+       xml:space="preserve"
+       style="font-size:21.02147293px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:&stroke_color;;fill-opacity:1;stroke:none;font-family:Sans"><tspan
+         x="174.17461"
+         y="554.1217"
+         id="tspan3064">1</tspan></text>
+    <path
+       d="m 198.96079,536.76347 c -0.72412,-2.08754 -3.85535,-2.66829 -4.57016,-4.75911 -0.54398,-1.59114 0.41111,-4.84994 1.17518,-6.34548 0.8785,-1.71948 3.58403,-1.89878 5.4842,-2.11515 2.90308,-0.33058 4.65816,4.0255 5.87592,3.83372 1.55514,-0.1023 2.25449,-2.48793 3.7867,-2.77614 2.16939,-0.40808 4.92014,0.0599 6.39822,1.71856 1.6825,1.88803 1.99296,5.13094 1.17519,7.53525 -0.58155,1.70978 -3.24118,2.02778 -3.91728,3.70153 -1.5172,3.75593 0.59363,8.10493 0.5223,12.16216 -0.0785,4.46388 -2.44397,9.11811 -1.04461,13.35194 0.64577,1.9538 3.46637,2.65253 4.04786,4.62691 0.51535,1.74982 0.13809,3.85051 -0.78346,5.4201 -0.77839,1.32577 -2.19739,2.33161 -3.65612,2.77614 -1.41951,0.43258 -3.07626,0.32499 -4.43959,-0.26439 -1.5295,-0.66121 -2.02542,-3.10643 -3.65613,-3.43714 -1.72831,-0.35049 -2.54847,1.76353 -4.309,1.85077 -2.0667,0.1024 -5.1839,-0.11769 -6.65938,-1.58637 -1.38558,-1.37919 -1.76507,-3.72751 -1.56691,-5.68449 0.15485,-1.52924 1.08998,-2.94065 2.08921,-4.09812 0.69927,-0.81 2.11478,-0.89977 2.61152,-1.85076 1.58724,-3.03868 -0.0538,-6.87906 0.13058,-10.3114 0.24699,-4.59719 -0.0601,-8.61145 1.30576,-13.74853 z"
+       id="path3060-2"
+       style="fill:&fill_color;;fill-opacity:1;stroke:&stroke_color;;stroke-width:2.4120214;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+    <text
+       x="200.98058"
+       y="554.26031"
+       transform="scale(0.99384853,1.0061895)"
+       id="text3062-9"
+       xml:space="preserve"
+       style="font-size:21.02147293px;font-style:normal;font-weight:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:&stroke_color;;fill-opacity:1;stroke:none;font-family:Sans"><tspan
+         x="200.98058"
+         y="554.26031"
+         id="tspan3064-9">2</tspan></text>
+  </g>
+</svg>
diff --git a/activity/activity.info b/activity/activity.info
new file mode 100644
index 0000000..5fe2ff2
--- /dev/null
+++ b/activity/activity.info
@@ -0,0 +1,8 @@
+[Activity]
+name = Napier
+activity_version = 1
+license = GPLv3
+bundle_id = org.sugarlabs.NapierActivity
+exec = sugar-activity NapierActivity.NapierActivity
+icon = activity-napier
+show_launcher = yes
diff --git a/bones/blank-bone.svg b/bones/blank-bone.svg
new file mode 100644
index 0000000..e3fee82
--- /dev/null
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+++ b/icons/number-0.svg
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.0"
+   width="55"
+   height="55"
+   id="svg2">
+  <defs
+     id="defs4" />
+  <rect
+     width="50.94099"
+     height="50.940994"
+     rx="8.1506357"
+     ry="7.0263433"
+     x="2.0295048"
+     y="2.0295029"
+     id="rect2817"
+     style="fill:#000000;fill-opacity:1;stroke:#808080;stroke-width:4.05900621;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+  <text
+     x="14.980469"
+     y="42.060547"
+     id="text2394"
+     xml:space="preserve"
+     style="font-size:40px;font-style:normal;font-weight:normal;fill:#ffffff;fill-opacity:1;stroke:none;font-family:Bitstream Vera Sans"><tspan
+       x="14.980469"
+       y="42.060547"
+       id="tspan2396">0</tspan></text>
+</svg>
diff --git a/icons/number-1.svg b/icons/number-1.svg
new file mode 100644
index 0000000..bffb371
--- /dev/null
+++ b/icons/number-1.svg
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.0"
+   width="55"
+   height="55"
+   id="svg2">
+  <defs
+     id="defs4" />
+  <rect
+     width="50.94099"
+     height="50.940994"
+     rx="8.1506357"
+     ry="7.0263433"
+     x="2.0295048"
+     y="2.0295029"
+     id="rect2817"
+     style="fill:#000000;fill-opacity:1;stroke:#808080;stroke-width:4.05900621;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+  <text
+     x="14.980469"
+     y="42.060547"
+     id="text2394"
+     xml:space="preserve"
+     style="font-size:40px;font-style:normal;font-weight:normal;fill:#ffffff;fill-opacity:1;stroke:none;font-family:Bitstream Vera Sans"><tspan
+       x="14.980469"
+       y="42.060547"
+       id="tspan2396">1</tspan></text>
+</svg>
diff --git a/icons/number-2.svg b/icons/number-2.svg
new file mode 100644
index 0000000..297ad79
--- /dev/null
+++ b/icons/number-2.svg
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.0"
+   width="55"
+   height="55"
+   id="svg2">
+  <defs
+     id="defs4" />
+  <rect
+     width="50.94099"
+     height="50.940994"
+     rx="8.1506357"
+     ry="7.0263433"
+     x="2.0295048"
+     y="2.0295029"
+     id="rect2817"
+     style="fill:#000000;fill-opacity:1;stroke:#808080;stroke-width:4.05900621;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+  <text
+     x="14.980469"
+     y="42.060547"
+     id="text2394"
+     xml:space="preserve"
+     style="font-size:40px;font-style:normal;font-weight:normal;fill:#ffffff;fill-opacity:1;stroke:none;font-family:Bitstream Vera Sans"><tspan
+       x="14.980469"
+       y="42.060547"
+       id="tspan2396">2</tspan></text>
+</svg>
diff --git a/icons/number-3.svg b/icons/number-3.svg
new file mode 100644
index 0000000..0cde39f
--- /dev/null
+++ b/icons/number-3.svg
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.0"
+   width="55"
+   height="55"
+   id="svg2">
+  <defs
+     id="defs4" />
+  <rect
+     width="50.94099"
+     height="50.940994"
+     rx="8.1506357"
+     ry="7.0263433"
+     x="2.0295048"
+     y="2.0295029"
+     id="rect2817"
+     style="fill:#000000;fill-opacity:1;stroke:#808080;stroke-width:4.05900621;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+  <text
+     x="14.980469"
+     y="42.060547"
+     id="text2394"
+     xml:space="preserve"
+     style="font-size:40px;font-style:normal;font-weight:normal;fill:#ffffff;fill-opacity:1;stroke:none;font-family:Bitstream Vera Sans"><tspan
+       x="14.980469"
+       y="42.060547"
+       id="tspan2396">3</tspan></text>
+</svg>
diff --git a/icons/number-4.svg b/icons/number-4.svg
new file mode 100644
index 0000000..bc27dd2
--- /dev/null
+++ b/icons/number-4.svg
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.0"
+   width="55"
+   height="55"
+   id="svg2">
+  <defs
+     id="defs4" />
+  <rect
+     width="50.94099"
+     height="50.940994"
+     rx="8.1506357"
+     ry="7.0263433"
+     x="2.0295048"
+     y="2.0295029"
+     id="rect2817"
+     style="fill:#000000;fill-opacity:1;stroke:#808080;stroke-width:4.05900621;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+  <text
+     x="14.980469"
+     y="42.060547"
+     id="text2394"
+     xml:space="preserve"
+     style="font-size:40px;font-style:normal;font-weight:normal;fill:#ffffff;fill-opacity:1;stroke:none;font-family:Bitstream Vera Sans"><tspan
+       x="14.980469"
+       y="42.060547"
+       id="tspan2396">4</tspan></text>
+</svg>
diff --git a/icons/number-5.svg b/icons/number-5.svg
new file mode 100644
index 0000000..a47f8d1
--- /dev/null
+++ b/icons/number-5.svg
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.0"
+   width="55"
+   height="55"
+   id="svg2">
+  <defs
+     id="defs4" />
+  <rect
+     width="50.94099"
+     height="50.940994"
+     rx="8.1506357"
+     ry="7.0263433"
+     x="2.0295048"
+     y="2.0295029"
+     id="rect2817"
+     style="fill:#000000;fill-opacity:1;stroke:#808080;stroke-width:4.05900621;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+  <text
+     x="14.980469"
+     y="42.060547"
+     id="text2394"
+     xml:space="preserve"
+     style="font-size:40px;font-style:normal;font-weight:normal;fill:#ffffff;fill-opacity:1;stroke:none;font-family:Bitstream Vera Sans"><tspan
+       x="14.980469"
+       y="42.060547"
+       id="tspan2396">5</tspan></text>
+</svg>
diff --git a/icons/number-6.svg b/icons/number-6.svg
new file mode 100644
index 0000000..19de7ef
--- /dev/null
+++ b/icons/number-6.svg
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.0"
+   width="55"
+   height="55"
+   id="svg2">
+  <defs
+     id="defs4" />
+  <rect
+     width="50.94099"
+     height="50.940994"
+     rx="8.1506357"
+     ry="7.0263433"
+     x="2.0295048"
+     y="2.0295029"
+     id="rect2817"
+     style="fill:#000000;fill-opacity:1;stroke:#808080;stroke-width:4.05900621;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+  <text
+     x="14.980469"
+     y="42.060547"
+     id="text2394"
+     xml:space="preserve"
+     style="font-size:40px;font-style:normal;font-weight:normal;fill:#ffffff;fill-opacity:1;stroke:none;font-family:Bitstream Vera Sans"><tspan
+       x="14.980469"
+       y="42.060547"
+       id="tspan2396">6</tspan></text>
+</svg>
diff --git a/icons/number-7.svg b/icons/number-7.svg
new file mode 100644
index 0000000..581999b
--- /dev/null
+++ b/icons/number-7.svg
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.0"
+   width="55"
+   height="55"
+   id="svg2">
+  <defs
+     id="defs4" />
+  <rect
+     width="50.94099"
+     height="50.940994"
+     rx="8.1506357"
+     ry="7.0263433"
+     x="2.0295048"
+     y="2.0295029"
+     id="rect2817"
+     style="fill:#000000;fill-opacity:1;stroke:#808080;stroke-width:4.05900621;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+  <text
+     x="14.980469"
+     y="42.060547"
+     id="text2394"
+     xml:space="preserve"
+     style="font-size:40px;font-style:normal;font-weight:normal;fill:#ffffff;fill-opacity:1;stroke:none;font-family:Bitstream Vera Sans"><tspan
+       x="14.980469"
+       y="42.060547"
+       id="tspan2396">7</tspan></text>
+</svg>
diff --git a/icons/number-8.svg b/icons/number-8.svg
new file mode 100644
index 0000000..e24a89c
--- /dev/null
+++ b/icons/number-8.svg
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.0"
+   width="55"
+   height="55"
+   id="svg2">
+  <defs
+     id="defs4" />
+  <rect
+     width="50.94099"
+     height="50.940994"
+     rx="8.1506357"
+     ry="7.0263433"
+     x="2.0295048"
+     y="2.0295029"
+     id="rect2817"
+     style="fill:#000000;fill-opacity:1;stroke:#808080;stroke-width:4.05900621;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+  <text
+     x="14.980469"
+     y="42.060547"
+     id="text2394"
+     xml:space="preserve"
+     style="font-size:40px;font-style:normal;font-weight:normal;fill:#ffffff;fill-opacity:1;stroke:none;font-family:Bitstream Vera Sans"><tspan
+       x="14.980469"
+       y="42.060547"
+       id="tspan2396">8</tspan></text>
+</svg>
diff --git a/icons/number-9.svg b/icons/number-9.svg
new file mode 100644
index 0000000..4ff26ff
--- /dev/null
+++ b/icons/number-9.svg
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.0"
+   width="55"
+   height="55"
+   id="svg2">
+  <defs
+     id="defs4" />
+  <rect
+     width="50.94099"
+     height="50.940994"
+     rx="8.1506357"
+     ry="7.0263433"
+     x="2.0295048"
+     y="2.0295029"
+     id="rect2817"
+     style="fill:#000000;fill-opacity:1;stroke:#808080;stroke-width:4.05900621;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+  <text
+     x="14.980469"
+     y="42.060547"
+     id="text2394"
+     xml:space="preserve"
+     style="font-size:40px;font-style:normal;font-weight:normal;fill:#ffffff;fill-opacity:1;stroke:none;font-family:Bitstream Vera Sans"><tspan
+       x="14.980469"
+       y="42.060547"
+       id="tspan2396">9</tspan></text>
+</svg>
diff --git a/po/Napier.pot b/po/Napier.pot
new file mode 100644
index 0000000..ac23756
--- /dev/null
+++ b/po/Napier.pot
@@ -0,0 +1,78 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2011-04-19 09:01-0400\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"Language: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=CHARSET\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: activity/activity.info:2
+msgid "Napier"
+msgstr ""
+
+#: /home/walter/Desktop/Activities/napier/NapierActivity.py:283
+msgid "Select a bone"
+msgstr ""
+
+#: /home/walter/Desktop/Activities/napier/NapierActivity.py:299
+msgid "Bones"
+msgstr ""
+
+#: /home/walter/Desktop/Activities/napier/NapierActivity.py:300
+msgid "Results"
+msgstr ""
+
+#: /home/walter/Desktop/Activities/napier/NapierActivity.py:307
+msgid "Clear"
+msgstr ""
+
+#: /home/walter/Desktop/Activities/napier/NapierActivity.py:311
+msgid "zero"
+msgstr ""
+
+#: /home/walter/Desktop/Activities/napier/NapierActivity.py:314
+msgid "one"
+msgstr ""
+
+#: /home/walter/Desktop/Activities/napier/NapierActivity.py:317
+msgid "two"
+msgstr ""
+
+#: /home/walter/Desktop/Activities/napier/NapierActivity.py:320
+msgid "three"
+msgstr ""
+
+#: /home/walter/Desktop/Activities/napier/NapierActivity.py:323
+msgid "four"
+msgstr ""
+
+#: /home/walter/Desktop/Activities/napier/NapierActivity.py:326
+msgid "five"
+msgstr ""
+
+#: /home/walter/Desktop/Activities/napier/NapierActivity.py:329
+msgid "six"
+msgstr ""
+
+#: /home/walter/Desktop/Activities/napier/NapierActivity.py:332
+msgid "seven"
+msgstr ""
+
+#: /home/walter/Desktop/Activities/napier/NapierActivity.py:335
+msgid "eight"
+msgstr ""
+
+#: /home/walter/Desktop/Activities/napier/NapierActivity.py:338
+msgid "nine"
+msgstr ""
diff --git a/sprites.py b/sprites.py
new file mode 100644
index 0000000..c633397
--- /dev/null
+++ b/sprites.py
@@ -0,0 +1,453 @@
+# -*- coding: utf-8 -*-
+
+#Copyright (c) 2007-8, Playful Invention Company.
+#Copyright (c) 2008-10 Walter Bender
+
+#Permission is hereby granted, free of charge, to any person obtaining a copy
+#of this software and associated documentation files (the "Software"), to deal
+#in the Software without restriction, including without limitation the rights
+#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+#copies of the Software, and to permit persons to whom the Software is
+#furnished to do so, subject to the following conditions:
+
+#The above copyright notice and this permission notice shall be included in
+#all copies or substantial portions of the Software.
+
+#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+#THE SOFTWARE.
+
+"""
+
+sprites.py is a simple sprites library for managing graphics objects,
+'sprites', on a canvas. It manages multiple sprites with methods such
+as move, hide, set_layer, etc.
+
+There are two classes:
+
+class Sprites maintains a collection of sprites.
+class Sprite manages individual sprites within the collection.
+
+Example usage:
+        # Import the classes into your program.
+        from sprites import Sprites Sprite
+
+        # In your expose callback event handler, call refresh
+        def _expose_cb(self, win, event):
+            self.sprite_list.refresh(event)
+            return True
+
+        # Create a new sprite collection for a gtk Drawing Area.
+        my_drawing_area = gtk.DrawingArea()
+        self.sprite_list = Sprites(my_drawing_area)
+
+        # Create a "pixbuf" (in this example, from SVG).
+        my_pixbuf = svg_str_to_pixbuf("<svg>...some svg code...</svg>")
+
+        # Create a sprite at position x1, y1.
+        my_sprite = sprites.Sprite(self.sprite_list, x1, y1, my_pixbuf)
+
+        # Move the sprite to a new position.
+        my_sprite.move_relative((dx, dy))
+
+        # Create another "pixbuf".
+        your_pixbuf = svg_str_to_pixbuf("<svg>...some svg code...</svg>")
+
+        # Create a sprite at position x2, y2.
+        your_sprite = sprites.Sprite(self.sprite_list, x2, y2, my_pixbuf)
+
+        # Assign the sprites to layers.
+        # In this example, your_sprite will be on top of my_sprite.
+        my_sprite.set_layer(100)
+        your_sprite.set_layer(200)
+
+        # Now put my_sprite on top of your_sprite.
+        my_sprite.set_layer(300)
+
+# method for converting SVG to a gtk pixbuf
+def svg_str_to_pixbuf(svg_string):
+    pl = gtk.gdk.PixbufLoader('svg')
+    pl.write(svg_string)
+    pl.close()
+    pixbuf = pl.get_pixbuf()
+    return pixbuf
+"""
+
+import pygtk
+pygtk.require('2.0')
+import gtk
+import pango
+
+
+class Sprites:
+    """ A class for the list of sprites and everything they share in common """
+
+    def __init__(self, canvas, area=None, gc=None):
+        """ Initialize an empty array of sprites """
+        self.canvas = canvas
+        if area == None:
+            self.area = self.canvas.window
+            self.gc = self.area.new_gc()
+        else:
+            self.area = area
+            self.gc = gc
+        self.cm = self.gc.get_colormap()
+        self.list = []
+
+    def get_sprite(self, i):
+        """ Return a sprint from the array """
+        if i < 0 or i > len(self.list) - 1:
+            return(None)
+        else:
+            return(self.list[i])
+
+    def length_of_list(self):
+        """ How many sprites are there? """
+        return(len(self.list))
+
+    def append_to_list(self, spr):
+        """ Append a new sprite to the end of the list. """
+        self.list.append(spr)
+
+    def insert_in_list(self, spr, i):
+        """ Insert a sprite at position i. """
+        if i < 0:
+            self.list.insert(0, spr)
+        elif i > len(self.list) - 1:
+            self.list.append(spr)
+        else:
+            self.list.insert(i, spr)
+
+    def remove_from_list(self, spr):
+        """ Remove a sprite from the list. """
+        if spr in self.list:
+            self.list.remove(spr)
+
+    def find_sprite(self, pos, alpha=True):
+        """ Search based on (x, y) position. Return the 'top/first' one. """
+        list = self.list[:]
+        list.reverse()
+        for spr in list:
+            if spr.hit(pos):
+                if not alpha or spr.get_pixel(pos)[3] == 255:
+                    return spr
+        return None
+
+    def refresh(self, event):
+        """ Handle expose event refresh """
+        self.redraw_sprites(event.area)
+
+    def redraw_sprites(self, area=None):
+        """ Redraw the sprites that intersect area. """
+        for spr in self.list:
+            if area == None:
+                spr.draw()
+            else:
+                intersection = spr.rect.intersect(area)
+                if intersection.width > 0 or intersection.height > 0:
+                    spr.draw()
+
+
+class Sprite:
+    """ A class for the individual sprites """
+
+    def __init__(self, sprites, x, y, image):
+        """ Initialize an individual sprite """
+        self._sprites = sprites
+        self.rect = gtk.gdk.Rectangle(int(x), int(y), 0, 0)
+        self._scale = [12]
+        self._rescale = [True]
+        self._horiz_align = ["center"]
+        self._vert_align = ["middle"]
+        self._fd = None
+        self._bold = False
+        self._italic = False
+        self._color = None
+        self._margins = [0, 0, 0, 0]
+        self.layer = 100
+        self.labels = []
+        self.images = []
+        self._dx = []  # image offsets
+        self._dy = []
+        self.set_image(image)
+        if self._sprites is not None:
+            self._sprites.append_to_list(self)
+
+    def set_image(self, image, i=0, dx=0, dy=0):
+        """ Add an image to the sprite. """
+        while len(self.images) < i + 1:
+            self.images.append(None)
+            self._dx.append(0)
+            self._dy.append(0)
+        self.images[i] = image
+        self._dx[i] = dx
+        self._dy[i] = dy
+        if isinstance(self.images[i], gtk.gdk.Pixbuf):
+            w = self.images[i].get_width()
+            h = self.images[i].get_height()
+        else:
+            w, h = self.images[i].get_size()
+        if i == 0:  # Always reset width and height when base image changes.
+            self.rect.width = w + dx
+            self.rect.height = h + dy
+        else:
+            if w + dx > self.rect.width:
+                self.rect.width = w + dx
+            if h + dy > self.rect.height:
+                self.rect.height = h + dy
+
+    def move(self, pos, visible=True):
+        """ Move to new (x, y) position """
+        if visible:
+            self.inval()
+        self.rect.x, self.rect.y = int(pos[0]), int(pos[1])
+        if visible:
+            self.inval()
+
+    def move_relative(self, pos, visible=True):
+        """ Move to new (x+dx, y+dy) position """
+        if visible:
+            self.inval()
+        self.rect.x += int(pos[0])
+        self.rect.y += int(pos[1])
+        if visible:
+            self.inval()
+
+    def get_xy(self):
+        """ Return current (x, y) position """
+        return (self.rect.x, self.rect.y)
+
+    def get_dimensions(self):
+        """ Return current size """
+        return (self.rect.width, self.rect.height)
+
+    def get_layer(self):
+        """ Return current layer """
+        return self.layer
+
+    def set_shape(self, image, i=0):
+        """ Set the current image associated with the sprite """
+        self.inval()
+        self.set_image(image, i)
+        self.inval()
+
+    def set_layer(self, layer):
+        """ Set the layer for a sprite """
+        if self._sprites is None:
+            return
+        self._sprites.remove_from_list(self)
+        self.layer = layer
+        for i in range(self._sprites.length_of_list()):
+            if layer < self._sprites.get_sprite(i).layer:
+                self._sprites.insert_in_list(self, i)
+                self.inval()
+                return
+        self._sprites.append_to_list(self)
+        self.inval()
+
+    def set_label(self, new_label, i=0):
+        """ Set the label drawn on the sprite """
+        self._extend_labels_array(i)
+        if type(new_label) is str or type(new_label) is unicode:
+            # pango doesn't like nulls
+            self.labels[i] = new_label.replace("\0", " ")
+        else:
+            self.labels[i] = str(new_label)
+        self.inval()
+
+    def set_margins(self, l=0, t=0, r=0, b=0):
+        """ Set the margins for drawing the label """
+        self._margins = [l, t, r, b]
+
+    def _extend_labels_array(self, i):
+        """ Append to the labels attribute list """
+        if self._fd is None:
+            self.set_font('Sans')
+        if self._color is None:
+            self._color = self._sprites.cm.alloc_color('black')
+        while len(self.labels) < i + 1:
+            self.labels.append(" ")
+            self._scale.append(self._scale[0])
+            self._rescale.append(self._rescale[0])
+            self._horiz_align.append(self._horiz_align[0])
+            self._vert_align.append(self._vert_align[0])
+
+    def set_font(self, font):
+        """ Set the font for a label """
+        self._fd = pango.FontDescription(font)
+
+    def set_label_color(self, rgb):
+        """ Set the font color for a label """
+        self._color = self._sprites.cm.alloc_color(rgb)
+
+    def set_label_attributes(self, scale, rescale=True, horiz_align="center",
+                             vert_align="middle", i=0):
+        """ Set the various label attributes """
+        self._extend_labels_array(i)
+        self._scale[i] = scale
+        self._rescale[i] = rescale
+        self._horiz_align[i] = horiz_align
+        self._vert_align[i] = vert_align
+
+    def hide(self):
+        """ Hide a sprite """
+        if self._sprites is None:
+            return
+        self.inval()
+        self._sprites.remove_from_list(self)
+
+    def inval(self):
+        """ Force a region redraw by gtk """
+        if self._sprites is None:
+            return
+        self._sprites.area.invalidate_rect(self.rect, False)
+
+    def draw(self):
+        """ Draw the sprite (and label) """
+        if self._sprites is None:
+            return
+        for i, img in enumerate(self.images):
+            if isinstance(img, gtk.gdk.Pixbuf):
+                self._sprites.area.draw_pixbuf(self._sprites.gc, img, 0, 0,
+                                               self.rect.x + self._dx[i],
+                                               self.rect.y + self._dy[i])
+            elif img is not None:
+                self._sprites.area.draw_drawable(self._sprites.gc, img, 0, 0,
+                                                 self.rect.x + self._dx[i],
+                                                 self.rect.y + self._dy[i],
+                                                 -1, -1)
+        if len(self.labels) > 0:
+            self.draw_label()
+
+    def hit(self, pos):
+        """ Is (x, y) on top of the sprite? """
+        x, y = pos
+        if x < self.rect.x:
+            return False
+        if x > self.rect.x + self.rect.width:
+            return False
+        if y < self.rect.y:
+            return False
+        if y > self.rect.y + self.rect.height:
+            return False
+        return True
+
+    def draw_label(self):
+        """ Draw the label based on its attributes """
+        if self._sprites is None:
+            return
+        my_width = self.rect.width - self._margins[0] - self._margins[2]
+        if my_width < 0:
+            my_width = 0
+        my_height = self.rect.height - self._margins[1] - self._margins[3]
+        for i in range(len(self.labels)):
+            pl = self._sprites.canvas.create_pango_layout(str(self.labels[i]))
+            self._fd.set_size(int(self._scale[i] * pango.SCALE))
+            pl.set_font_description(self._fd)
+            w = pl.get_size()[0] / pango.SCALE
+            if w > my_width:
+                if self._rescale[i]:
+                    self._fd.set_size(
+                            int(self._scale[i] * pango.SCALE * my_width / w))
+                    pl.set_font_description(self._fd)
+                    w = pl.get_size()[0] / pango.SCALE
+                else:
+                    j = len(self.labels[i]) - 1
+                    while(w > my_width and j > 0):
+                        pl = self._sprites.canvas.create_pango_layout(
+                              "…" + self.labels[i][len(self.labels[i]) - j:])
+                        self._fd.set_size(int(self._scale[i] * pango.SCALE))
+                        pl.set_font_description(self._fd)
+                        w = pl.get_size()[0] / pango.SCALE
+                        j -= 1
+            if self._horiz_align[i] == "center":
+                x = int(self.rect.x + self._margins[0] + (my_width - w) / 2)
+            elif self._horiz_align[i] == 'left':
+                x = int(self.rect.x + self._margins[0])
+            else:  # right
+                x = int(self.rect.x + self.rect.width - w - self._margins[2])
+            h = pl.get_size()[1] / pango.SCALE
+            if self._vert_align[i] == "middle":
+                y = int(self.rect.y + self._margins[1] + (my_height - h) / 2)
+            elif self._vert_align[i] == "top":
+                y = int(self.rect.y + self._margins[1])
+            else:  # bottom
+                y = int(self.rect.y + self.rect.height - h - self._margins[3])
+            self._sprites.gc.set_foreground(self._color)
+            self._sprites.area.draw_layout(self._sprites.gc, x, y, pl)
+
+    def label_width(self):
+        """ Calculate the width of a label """
+        max = 0
+        for i in range(len(self.labels)):
+            pl = self._sprites.canvas.create_pango_layout(self.labels[i])
+            self._fd.set_size(int(self._scale[i] * pango.SCALE))
+            pl.set_font_description(self._fd)
+            w = pl.get_size()[0] / pango.SCALE
+            if w > max:
+                max = w
+        return max
+
+    def label_safe_width(self):
+        """ Return maximum width for a label """
+        return self.rect.width - self._margins[0] - self._margins[2]
+
+    def label_safe_height(self):
+        """ Return maximum height for a label """
+        return self.rect.height - self._margins[1] - self._margins[3]
+
+    def label_left_top(self):
+        """ Return the upper-left corner of the label safe zone """
+        return(self._margins[0], self._margins[1])
+
+    def get_pixel(self, pos, i=0, mode='888'):
+        """ Return the pixel at (x, y) """
+        x, y = pos
+        x = x - self.rect.x
+        y = y - self.rect.y
+        if isinstance(self.images[i], gtk.gdk.Pixbuf):
+            if y > self.images[i].get_height() - 1:
+                return(-1, -1, -1, -1)
+            array = self.images[i].get_pixels()
+            if array is not None:
+                try:
+                    if self.images[i].get_has_alpha():
+                        offset = (y * self.images[i].get_width() + x) * 4
+                        a = ord(array[offset + 3])
+                    else:
+                        offset = (y * self.images[i].get_width() + x) * 3
+                        a = 255
+                    r = ord(array[offset])
+                    g = ord(array[offset + 1])
+                    b = ord(array[offset + 2])
+                    return(r, g, b, a)
+                except IndexError:
+                    """
+                    print "Index Error: %d %d (%d, %d) (w: %d, h: %d) (%dx%d)"\
+                            % (len(array), offset, x, y,
+                               self.images[i].get_width(),
+                               self.images[i].get_height(),
+                               self.rect.width, self.rect.height)
+                    """
+                    pass
+                return(-1, -1, -1, -1)
+        else:
+            w, h = self.images[i].get_size()
+            if x < 0 or x > (w - 1) or y < 0 or y > (h - 1):
+                return(-1, -1, -1, -1)
+            image = self.images[i].get_image(x, y, 1, 1)
+            pixel = image.get_pixel(0, 0)
+            visual = self.images[i].get_visual()
+            r = int((pixel & visual.red_mask) >> visual.red_shift)
+            g = int((pixel & visual.green_mask) >> visual.green_shift)
+            b = int((pixel & visual.blue_mask) >> visual.blue_shift)
+            # Rescale to 8 bits
+            if mode == '565':
+                r = r << 3
+                g = g << 2
+                b = b << 3
+            return(r, g, b, 0)