scripts/modules.d/001-KeyboardLED-Visualizer.py

    #***
  #*********************************************************************
#*************************************************************************
#*** 
#*** GizmoDaemon Config Script
#***    Keyboard Visualization config
#***
#*****************************************
  #*****************************************
    #***

"""

  Copyright (c) 2007, Gizmo Daemon Team
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at 

        http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and 
  limitations under the License. 
  
"""

############################
# Imports
##########################

from GizmoDaemon import *
from GizmoDeviceStrings import *
from VisualizerDefault import *
import sys

ENABLED = True
VERSION_NEEDED = 3.1

############################
# KeyboardVisualizer Class definition
##########################

class KeyboardVisualizer(VisualizerDefault):
        """
        Keyboard Visualization Handler
        """
        
        ############################
        # Public Functions
        ##########################
        
        def applyVisualizationCPUUsage(self, Event):
                """
                Set the Keyboards' LEDs to the current system CPU Usage
                """
                
                self.__setLEDsPercent(Event.getCPUUsageAvg(0))
                
        def applyVisualizationVolume(self):
                """
                Set the Keyboards' LEDs to the Default playback volume mixer's level
                """

                # make sure there's a mixer available           
                if not Gizmod.DefaultMixerVolume:
                        return
                        
                # update the Keyboards' LEDs
                if Gizmod.DefaultMixerSwitch.SwitchPlayback:
                        # if not muted set LED to volume level
                        self.__setLEDsPercent(Gizmod.DefaultMixerVolume.VolumePlaybackPercent)
                else:
                        # if muted pulse the led
                        self.__setLEDsPercent(0)
                        
        def applyVisualizationSound(self, Event):
                """
                Set the Keyboards' LEDs to the sound level
                """
                
                self.__setLEDsPercent(Event.VUCombined * 100.0)

        ############################
        # Private Functions
        ##########################
        
        def __setLEDsPercent(self, Percent):
                """
                Set the keyboard LEDs to a percentage
                """
                
                CurVal = 0
                for i in range(len(KEYBOARD_LEDS)):
                        if Percent >= CurVal and Percent >= 7.5:
                                if self.LEDs[i] != 1:
                                        Gizmod.Keyboards[0].createEventRaw(GizmoEventType.EV_LED, KEYBOARD_LEDS[i], 1)
                                        self.LEDs[i] = 1
                        else:
                                if self.LEDs[i] != 0:
                                        Gizmod.Keyboards[0].createEventRaw(GizmoEventType.EV_LED, KEYBOARD_LEDS[i], 0)
                                        self.LEDs[i] = 0
                        CurVal += self.RangePerLED      
        
        def __init__(self):
                """ 
                Default Constructor
                """

                # call base constructor
                VisualizerDefault.__init__(self)
                
                # print informative text                
                Gizmod.printNiceScriptInit(1, self.__class__.__name__, self.__class__.__doc__, str(len(Gizmod.Keyboards)) + " Keyboards")

                # initialize member variables
                self.RangePerLED = 100.0 / float(len(KEYBOARD_LEDS))
                
                # so we only set LED states when neccessery
                self.LEDs = []
                for i in range(len(KEYBOARD_LEDS)):
                        self.LEDs.append(0)
                        Gizmod.Keyboards[0].createEventRaw(GizmoEventType.EV_LED, i, 0)

############################
# KeyboardVisualization class end
##########################

# register the user script
if ENABLED and Gizmod.UseKeyboardLEDs:
        if not Gizmod.checkVersion(VERSION_NEEDED, False):
                Gizmod.printNiceScriptInit(1, " * KeyboardVisualizer", "NOT LOADED", "Version Needed: " + str(VERSION_NEEDED))
        else:
                Gizmod.Dispatcher.userScripts.append(KeyboardVisualizer())

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