Add the functionality to show webcam images to the person itself.

Need to add support for sending these images to other player.

4 files changed, 101 insertions, 6 deletions

diff --git a/GNUChessActivity.py b/GNUChessActivity.py
index 22e8171..e17fb5e 100644
--- a/GNUChessActivity.py
+++ b/GNUChessActivity.py
@@ -12,7 +12,6 @@
 # Foundation, 51 Franklin Street, Suite 500 Boston, MA 02110-1335 USA
 
 from gi.repository import Gtk, Gdk, GObject
-
 from sugar3.activity import activity
 from sugar3 import profile
 from sugar3.graphics.toolbarbox import ToolbarBox
@@ -25,7 +24,6 @@ from sugar3 import mime
 from sugar3.graphics.alert import ConfirmationAlert, NotifyAlert
 from sugar3.graphics.icon import Icon
 from sugar3.graphics.xocolor import XoColor
-
 from toolbar_utils import button_factory, label_factory, separator_factory, \
     radio_factory, entry_factory, combo_factory
 from utils import json_load, json_dump, get_hardware, \
@@ -39,6 +37,9 @@ from dbus.gobject_service import ExportedGObject
 from sugar3.presence import presenceservice
 from sugar3.presence.tubeconn import TubeConnection
 
+from WebcamImages import WebcamImages
+from WebcamImages import W_I_WIDTH
+
 from gettext import gettext as _
 
 from chess import Gnuchess
@@ -46,7 +47,6 @@ from chess import Gnuchess
 import logging
 _logger = logging.getLogger('gnuchess-activity')
 
-
 SERVICE = 'org.sugarlabs.GNUChessActivity'
 IFACE = SERVICE
 PATH = '/org/augarlabs/GNUChessActivity'
@@ -82,11 +82,22 @@ class GNUChessActivity(activity.Activity):
         self._setup_toolbars()
         self._setup_dispatch_table()
 
+        self.main_hbox = Gtk.HBox() # contains webcam image viewer and the canvas
+        self.image_vbox = Gtk.VBox()
         # Create a canvas
         canvas = Gtk.DrawingArea()
-        canvas.set_size_request(Gdk.Screen.width(), \
+        canvas.set_size_request(Gdk.Screen.width() - W_I_WIDTH, \
                                 Gdk.Screen.height())
-        self.set_canvas(canvas)
+        self.main_hbox.pack_start(canvas, False, True, 0)
+        # make sure that our Webcam images directory is empty
+        webcam_image = Gtk.Image()
+        w_obj = WebcamImages(webcam_image, 7)
+        self.image_vbox.pack_start(webcam_image, False, True, 0)
+        self.image_vbox.show()
+        self.main_hbox.pack_end(self.image_vbox, False, True, 0)
+        self.main_hbox.show_all()
+        self.set_canvas(self.main_hbox)
+        self.main_hbox.show()
         canvas.show()
         self.show_all()
 
diff --git a/WebcamImages.py b/WebcamImages.py
new file mode 100644
index 0000000..76a66b3
--- /dev/null
+++ b/WebcamImages.py
@@ -0,0 +1,83 @@
+# 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 3 of the License, or
+# (at your option) any later version.
+#
+# You should have received a copy of the GNU General Public License
+# along with this library; if not, write to the Free Software
+# Foundation, 51 Franklin Street, Suite 500 Boston, MA 02110-1335 USA
+
+import time
+import gst
+import os
+from sugar3.activity import activity
+from gi.repository import GdkPixbuf, GObject
+
+WEBCAM_IMAGES_DIR = os.path.join(activity.get_bundle_path(), 'webcam_images')
+W_I_WIDTH  = 170
+W_I_HEIGHT = 120
+
+class WebcamImages():
+    """
+    Created by Aneesh Dogra
+
+    Generates Webcam images.
+
+    @param image_widget
+        image_widget: GtkImage widget which you want to update.
+    @param fps
+        fps: No of frames generated per second.
+    """
+    def __init__(self, image_widget, fps):
+        image_list = os.listdir(WEBCAM_IMAGES_DIR)
+        for image in image_list:
+            os.remove(os.path.join(WEBCAM_IMAGES_DIR, image))
+        self.gen_webcam_images(fps)
+        # Let's give it some time to initialize itself and generate some images
+        time.sleep(2)
+        image_widget.set_size_request(W_I_WIDTH, W_I_HEIGHT)
+        self.update_image(fps, image_widget)
+    def gen_webcam_images(self, fps):
+        """
+        Generates Webcam images, and saves them in WEBCAM_IMAGES_DIR
+        """
+        player = gst.parse_launch ("v4l2src ! videorate ! "            \
+                                   "video/x-raw-rgb,framerate=%d/1 ! " \
+                                   "pngenc snapshot=false ! "          \
+                                   "multifilesink location=%s" %       \
+                                    (fps,
+                                     os.path.join(WEBCAM_IMAGES_DIR,
+                                                  '%09d.png'), ))
+
+        player.set_state(gst.STATE_PLAYING)
+
+    def update_image(self, fps, image_widget):
+        """
+        Updates the images in image_widget.
+        Used for Webcam Images.
+        The function checks for files in WEBCAM_IMAGES_DIR
+        and updates the images in image_widget.
+        """
+        image_list = os.listdir(WEBCAM_IMAGES_DIR)
+        image_list.sort()
+        image_list = [os.path.join(WEBCAM_IMAGES_DIR, image) \
+                      for image in image_list]
+        image = image_list[-1]
+        print image
+
+        if os.path.splitext(image)[-1] == '.png':
+            pixbuf = GdkPixbuf.Pixbuf.new_from_file(image)
+            pixbuf = pixbuf.scale_simple(W_I_WIDTH, W_I_HEIGHT,
+                                         GdkPixbuf.InterpType.BILINEAR)
+            image_widget.set_from_pixbuf(pixbuf)
+            for a in image_list:
+                os.remove(a)
+
+        self.image_updater_thread = GObject.timeout_add(1000 / fps,
+                                                        self.update_image,
+                                                        fps,
+                                                        image_widget)
+    def cleanup(self):
+        GObject.source_remove(self.image_updater_thread)
diff --git a/bin/x86_64/gnuchess b/bin/x86_64/gnuchess
index a6240aa..a6240aa 100644..100755
--- a/bin/x86_64/gnuchess
+++ b/bin/x86_64/gnuchess
diff --git a/chess.py b/chess.py
index e8945d1..b30556a 100644
--- a/chess.py
+++ b/chess.py
@@ -55,7 +55,8 @@ WK = 10
 BK = 11
 FILES = 'abcdefgh'
 RANKS = '12345678'
-BIN = {'i686': 'i686', 'i586': 'i686', 'armv7l': 'armv7l'}
+BIN = {'i686': 'i686', 'i586': 'i686', 'armv7l': 'armv7l',
+       'x86_64': 'x86_64'}
 
 
 class Gnuchess():