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<h1>src/module/RGBLed.js <small>File</small></h1>
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<pre class="prettyprint linenums">
+(function (global, factory) {
if (typeof exports === 'undefined') {
factory(global.webduino || {});
} else {
module.exports = factory;
}
}(this, function (scope) {
'use strict';
var Led = scope.module.Led,
Module = scope.Module,
proto;
/**
* The RGBLed Class.
*
* @namespace webduino.module
* @class RGBLed
* @constructor
* @param {webduino.Board} board The board the RGB LED is attached to.
* @param {webduino.Pin} redLedPin The pin the red LED is connected to.
* @param {webduino.Pin} greenLedPin The pin the green LED is connected to.
* @param {webduino.Pin} blueLedPin The pin the blue LED is connected to.
* @param {Number} [driveMode] Drive mode the RGB LED is operating at, either RGBLed.COMMON_ANODE or RGBLed.COMMON_CATHODE.
* @extends webduino.Module
*/
function RGBLed(board, redLedPin, greenLedPin, blueLedPin, driveMode) {
Module.call(this);
if (driveMode === undefined) {
driveMode = RGBLed.COMMON_ANODE;
}
this._board = board;
this._redLed = new Led(board, redLedPin, driveMode);
this._greenLed = new Led(board, greenLedPin, driveMode);
this._blueLed = new Led(board, blueLedPin, driveMode);
this.setColor(0, 0, 0);
}
function hexToR(h) {
return parseInt(h.substring(0, 2), 16);
}
function hexToG(h) {
return parseInt(h.substring(2, 4), 16);
}
function hexToB(h) {
return parseInt(h.substring(4, 6), 16);
}
function cutHex(h) {
return (h.charAt(0) == '#') ? h.substring(1, 7) : h;
}
RGBLed.prototype = proto = Object.create(Module.prototype, {
constructor: {
value: RGBLed
}
});
/**
* Light up and mix colors with the LEDs.
*
* @method setColor
* @param {Number} red The brightness of the red LED.
* @param {Number} green The brightness of the green LED.
* @param {Number} blue The brightness of the blue LED.
* @param {Function} [callback] Function to call when the color is set.
*/
proto.setColor = function (red, green, blue, callback) {
if (typeof green === 'undefined' || typeof green === 'function') {
var color = cutHex(red);
callback = green;
red = hexToR(color);
green = hexToG(color);
blue = hexToB(color);
}
red = red / 255;
green = green / 255;
blue = blue / 255;
this._redLed.intensity = red;
this._greenLed.intensity = green;
this._blueLed.intensity = blue;
if (typeof callback === 'function') {
var self = this,
redPin = this._redLed._pin,
greenPin = this._greenLed._pin,
bluePin = this._blueLed._pin;
this._board.queryPinState([redPin, greenPin, bluePin], function (pins) {
if (pins[0].state === redPin.value &&
pins[1].state === greenPin.value &&
pins[2].state === bluePin.value) {
callback.call(self);
}
});
}
};
/**
* Indicates the common anode drive mode.
*
* @property COMMON_ANODE
* @type {Number}
* @static
* @final
*/
RGBLed.COMMON_ANODE = Led.SYNC_DRIVE;
/**
* Indicates the common cathode drive mode.
*
* @property COMMON_CATHODE
* @type {Number}
* @static
* @final
*/
RGBLed.COMMON_CATHODE = Led.SOURCE_DRIVE;
scope.module.RGBLed = RGBLed;
}));
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