Accelerometer Skeleton - Level Tool activity

4 files changed, 319 insertions, 0 deletions

diff --git a/Accelerometer/LevelActivity.py b/Accelerometer/LevelActivity.py
new file mode 100644
index 0000000..ca5a19d
--- /dev/null
+++ b/Accelerometer/LevelActivity.py
@@ -0,0 +1,188 @@
+# LevelActivity.py
+# Copyright (C) 2012  Aneesh Dogra <lionaneesh@gmail.com>
+#
+# 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
+
+from gi.repository import Gtk
+from gi.repository import GObject
+from sugar3.activity import widgets
+from sugar3.activity.widgets import StopButton
+from sugar3.activity import activity
+from math import pi, sqrt
+from gettext import gettext as _
+from collections import deque
+
+ACCELEROMETER_DEVICE = '/sys/devices/platform/lis3lv02d/position'
+#ACCELEROMETER_DEVICE = 'a.txt'
+
+def read_accelerometer(canvas):
+    fh = open(ACCELEROMETER_DEVICE)
+    string = fh.read()
+    xyz = string[1:-2].split(',')
+    try:
+        x = float(xyz[0]) / (64 * 18)
+        y = float(xyz[1]) / (64 * 18)
+        fh.close()
+        canvas.motion_cb(x, y)
+    except:
+        pass
+    GObject.timeout_add(100, read_accelerometer, canvas)
+
+class MyCanvas(Gtk.DrawingArea):
+    ''' Create a GTK+ widget on which we will draw using Cairo '''
+
+    def __init__(self):
+        Gtk.DrawingArea.__init__(self)
+        self._draw_ruler = False
+        self._object = None
+        self.connect('draw', self._draw_cb)
+        self._dpi = 96
+        self.cr = None
+        self.width = 0
+        self.height = 0
+        self.radius = 0
+        self.x = 0
+        self.y = 0
+        self.center = (0, 0)
+        self.prev = deque([])
+        self.ball_radius = 20
+
+    def _draw_cb(self, drawing_area, cr):
+        self.center = (self.width / 2, self.height / 2)
+        self.radius = min(self.width / 2, self.height / 2) - \
+                      self.ball_radius - 20
+        self.cr = cr
+        cr.set_line_width(2)
+        self.width = drawing_area.get_allocated_width()
+        self.height = drawing_area.get_allocated_height()
+
+        cr.set_source_rgb(1, 1, 1)
+        cr.rectangle(0, 0, self.width, self.height)
+        cr.fill()
+
+
+        cr.set_source_rgb(0.9450, 0.9450, 0.9450)
+        cr.arc(self.center[0], self.center[1],
+               self.radius, 0,
+               2 * pi)
+        cr.fill()
+
+
+        cr.set_source_rgb(0, 0, 0)
+        cr.arc(self.center[0], self.center[1],
+               self.ball_radius + 2, 0,
+               2 * pi)
+        cr.stroke()
+
+        cr.arc(self.center[0], self.center[1],
+               self.radius / 3, 0,
+               2 * pi)
+        cr.stroke()
+
+        cr.arc(self.center[0], self.center[1],
+               self.radius * 2 / 3, 0,
+               2 * pi)
+        cr.stroke()
+
+        cr.arc(self.center[0], self.center[1],
+               self.radius, 0,
+               2 * pi)
+        cr.stroke()
+
+        cr.move_to(self.center[0] - self.radius, self.center[1])
+        cr.line_to(self.center[0] + self.radius, self.center[1])
+        cr.stroke()
+
+        cr.move_to(self.center[0], self.center[1] - self.radius)
+        cr.line_to(self.center[0], self.center[1] + self.radius)
+        cr.stroke()
+
+        self.update_ball_and_text()
+
+    def update_ball_and_text(self):
+        # Build the ball
+        self.cr.set_source_rgb(0.3012, 0.6, 1) # blue
+        self.cr.arc(self.x, self.y, self.ball_radius, 0, 2 * pi)
+        self.cr.fill()
+
+        # Now update the text
+
+        # 1. Clear Text
+        self.cr.set_source_rgb(1, 1, 1) # white
+        self.cr.rectangle(self.width - 110, self.height - 110,
+                          self.width, self.height)
+        self.cr.fill()
+
+        # 2. Update Text
+        self.cr.set_source_rgb(0, 0, 0) # black
+        self.cr.move_to(self.width - 100, self.height - 80)
+        self.cr.set_font_size(20)
+
+        # TRANS: X is for X axis
+        self.cr.show_text(_("X: %.2f") % (self.x - self.width / 2,))
+
+        self.cr.move_to(self.width - 99, self.height - 60)
+        self.cr.set_font_size(20)
+
+        # TRANS: Y is for Y axis
+        self.cr.show_text(_("Y: %.2f") % (self.y - self.height / 2,))
+
+
+    def motion_cb(self, x, y):
+        if len(self.prev) >= 2:
+            self.x = self.prev[-2][0] * 0.25 +  self.prev[-1][0] * 0.5 + \
+                     self.radius * x * 0.25
+            self.y = self.prev[-2][1] * 0.25 +  self.prev[-1][1] * 0.5 + \
+                     self.radius * y * 0.25
+            self.prev.popleft()
+            self.prev.append([self.x, self.y])
+        else:
+            self.x = self.radius * x
+            self.y = self.radius * y
+            self.prev.append([self.x, self.y])
+
+        if self.x and self.y:
+            r = sqrt((self.x * self.x) + (self.y * self.y))
+            r1 = min(r, self.radius)
+            scale = r1 / r
+            self.x *= scale
+            self.y *= scale
+
+        self.x += self.center[0]
+        self.y += self.center[1]
+
+        self.queue_draw()
+
+class LevelActivity(activity.Activity):
+    def __init__(self, handle):
+        "The entry point to the Activity"
+        activity.Activity.__init__(self, handle)
+
+        toolbox = widgets.ActivityToolbar(self)
+        toolbox.share.props.visible = False
+
+        stop_button = StopButton(self)
+        stop_button.show()
+        toolbox.insert(stop_button, -1)
+
+        self.set_toolbar_box(toolbox)
+        toolbox.show()
+
+        # Draw the canvas
+        self._canvas = MyCanvas()
+        self.set_canvas(self._canvas)
+        self._canvas.show()
+
+        GObject.timeout_add(100, read_accelerometer, self._canvas)
diff --git a/Accelerometer/activity/Level.svg b/Accelerometer/activity/Level.svg
new file mode 100644
index 0000000..10c53b0
--- /dev/null
+++ b/Accelerometer/activity/Level.svg
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg  PUBLIC '-//W3C//DTD SVG 1.1//EN'  'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd' [
+	<!ENTITY stroke_color "#000000">
+	<!ENTITY fill_color "#OOFFOO">
+]>
+<!-- Created with Inkscape (http://www.inkscape.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"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="55"
+   height="55"
+   id="svg2"
+   version="1.1"
+   inkscape:version="0.48.3.1 r9886"
+   sodipodi:docname="Level.svg">
+  <defs
+     id="defs4" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="7.890625"
+     inkscape:cx="32.611517"
+     inkscape:cy="25.169923"
+     inkscape:document-units="px"
+     inkscape:current-layer="layer2"
+     showgrid="false"
+     inkscape:window-width="1280"
+     inkscape:window-height="741"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1" />
+  <metadata
+     id="metadata7">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-997.3622)">
+    <path
+       sodipodi:type="arc"
+       style="fill-opacity:0;fill-rule:evenodd;stroke:&stroke_color;;stroke-width:0.40000001;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+       id="path3807"
+       sodipodi:cx="8.1425743"
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+       transform="matrix(3.6020297,0,0,3.5933126,-1.8538196,996.3557)" />
+    <path
+       sodipodi:type="arc"
+       style="fill-opacity:0;fill-rule:evenodd;stroke:&stroke_color;;stroke-width:0.78126347;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
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+       sodipodi:type="arc"
+       style="fill-opacity:0;fill-rule:evenodd;stroke:&stroke_color;;stroke-width:0.40000001;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
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+       transform="matrix(1.1219773,0,0,1.119262,18.682563,1016.6784)" />
+    <rect
+       style="fill:&stroke_color;;fill-opacity:1;stroke:&stroke_color;;stroke-width:0.35184783;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+       id="rect3838"
+       width="48.464798"
+       height="1.1384753"
+       x="3.2817473"
+       y="1025.2729" />
+    <rect
+       style="fill:&stroke_color;;fill-opacity:1;stroke:&stroke_color;;stroke-width:0.35976684;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+       id="rect3840"
+       width="1.3694848"
+       height="48.271351"
+       x="27.247725"
+       y="1000.9095" />
+  </g>
+  <g
+     inkscape:groupmode="layer"
+     id="layer2"
+     inkscape:label="Layer"
+     transform="translate(0,39)">
+    <path
+       sodipodi:type="arc"
+       style="fill:&fill_color;;fill-opacity:1;fill-rule:evenodd;stroke:&stroke_color;;stroke-width:0.1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+       id="path3834"
+       sodipodi:cx="7.9841585"
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+  </g>
+</svg>
diff --git a/Accelerometer/activity/activity.info b/Accelerometer/activity/activity.info
new file mode 100644
index 0000000..99973cf
--- /dev/null
+++ b/Accelerometer/activity/activity.info
@@ -0,0 +1,9 @@
+[Activity]
+name = Level
+bundle_id = net.flossmanuals.LevelActivity
+icon = Level
+exec = sugar-activity LevelActivity.LevelActivity
+show_launcher = yes
+mime_types = text/plain;application/zip
+activity_version = 1
+license = GPLv2+
diff --git a/Accelerometer/setup.py b/Accelerometer/setup.py
new file mode 100755
index 0000000..d4b5aa0
--- /dev/null
+++ b/Accelerometer/setup.py
@@ -0,0 +1,2 @@
+from sugar3.activity import bundlebuilder
+bundlebuilder.start()