diff options
Diffstat (limited to 'Accelerometer/LevelActivity.py')
| -rw-r--r-- | Accelerometer/LevelActivity.py | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/Accelerometer/LevelActivity.py b/Accelerometer/LevelActivity.py deleted file mode 100644 index 473976b..0000000 --- a/Accelerometer/LevelActivity.py +++ /dev/null @@ -1,189 +0,0 @@ -# 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 - -# Change the following text to change the accelerometer path -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) |