first implementation of protobuf

restructure in client server model
loads of work still missing

ledd/led/rgb_stripe.py

@@ -0,0 +1,83 @@
+# LEDD Project
+# Copyright (C) 2015 LEDD Team
+#
+# 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.
+#
+# 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, see <http://www.gnu.org/licenses/>.
+
+from spectra import Color
+
+
+class RGBStripe:
+    """
+    A group of leds representing an common RGB stripe.
+    """
+    __tablename__ = "stripe"
+    id = Column(Integer, primary_key=True)
+    controller_id = Column(Integer, ForeignKey('controller.id'))
+    name = Column(String)
+    channel_r = Column(Integer)
+    channel_g = Column(Integer)
+    channel_b = Column(Integer)
+    channel_r_gamma = Column(Float, default=2.8)
+    channel_g_gamma = Column(Float, default=2.8)
+    channel_b_gamma = Column(Float, default=2.8)
+    rgb = Column(Boolean)
+
+    @property
+    def channels(self):
+        return self.channel_r, self.channel_g, self.channel_b
+
+    # TODO save channels to db
+
+    @channels.setter
+    def channels(self, t):
+        self.channel_r, self.channel_g, self.channel_b = t
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self._color = None
+        self.gamma_correct = (self.channel_r_gamma, self.channel_g_gamma, self.channel_b_gamma)
+        self.read_color()
+
+    @reconstructor
+    def init_on_load(self):
+        self._color = None
+        self.gamma_correct = (self.channel_r_gamma, self.channel_g_gamma, self.channel_b_gamma)
+        self.read_color()
+
+    def read_color(self):
+        if self.controller:
+            rc = tuple([float(self.controller.get_channel(channel)) for channel in self.channels])
+            c = Color("rgb", rc[0], rc[1], rc[2])
+            self._color = c.to("hsv")
+
+    def __repr__(self):
+        return "<Stripe id={}>".format(self.id)
+
+    def set_color(self, c):
+        self._color = c
+        for channel, gamma_correct, value in zip(self.channels, self.gamma_correct, c.clamped_rgb):
+            self.controller.set_channel(channel, value, gamma_correct)
+
+    def get_color(self):
+        return self._color
+
+    def to_json(self):
+        return {
+            'id': self.id,
+            'name': self.name,
+            'rgb': self.rgb,
+            'channel': self.channels
+        }
+
+    color = property(get_color, set_color)