mirror of
https://github.com/Tonejs/Tone.js
synced 2024-12-28 12:33:12 +00:00
ed71d8141b
no longer using AMD (require.js) style imports, and beginning to move to es6 "import/export" statements everywhere.
99 lines
1.9 KiB
JavaScript
99 lines
1.9 KiB
JavaScript
import Tone from "../core/Tone";
|
|
import "../signal/Signal";
|
|
import "../core/Gain";
|
|
import "../core/AudioNode";
|
|
|
|
/**
|
|
* @class Tone.Volume is a simple volume node, useful for creating a volume fader.
|
|
*
|
|
* @extends {Tone.AudioNode}
|
|
* @constructor
|
|
* @param {Decibels} [volume=0] the initial volume
|
|
* @example
|
|
* var vol = new Tone.Volume(-12);
|
|
* instrument.chain(vol, Tone.Master);
|
|
*/
|
|
Tone.Volume = function(){
|
|
|
|
var options = Tone.defaults(arguments, ["volume"], Tone.Volume);
|
|
Tone.AudioNode.call(this, options);
|
|
|
|
/**
|
|
* the output node
|
|
* @type {GainNode}
|
|
* @private
|
|
*/
|
|
this.output = this.input = new Tone.Gain(options.volume, Tone.Type.Decibels);
|
|
|
|
/**
|
|
* The unmuted volume
|
|
* @type {Decibels}
|
|
* @private
|
|
*/
|
|
this._unmutedVolume = options.volume;
|
|
|
|
/**
|
|
* The volume control in decibels.
|
|
* @type {Decibels}
|
|
* @signal
|
|
*/
|
|
this.volume = this.output.gain;
|
|
|
|
this._readOnly("volume");
|
|
|
|
//set the mute initially
|
|
this.mute = options.mute;
|
|
};
|
|
|
|
Tone.extend(Tone.Volume, Tone.AudioNode);
|
|
|
|
/**
|
|
* Defaults
|
|
* @type {Object}
|
|
* @const
|
|
* @static
|
|
*/
|
|
Tone.Volume.defaults = {
|
|
"volume" : 0,
|
|
"mute" : false
|
|
};
|
|
|
|
/**
|
|
* Mute the output.
|
|
* @memberOf Tone.Volume#
|
|
* @type {boolean}
|
|
* @name mute
|
|
* @example
|
|
* //mute the output
|
|
* volume.mute = true;
|
|
*/
|
|
Object.defineProperty(Tone.Volume.prototype, "mute", {
|
|
get : function(){
|
|
return this.volume.value === -Infinity;
|
|
},
|
|
set : function(mute){
|
|
if (!this.mute && mute){
|
|
this._unmutedVolume = this.volume.value;
|
|
//maybe it should ramp here?
|
|
this.volume.value = -Infinity;
|
|
} else if (this.mute && !mute){
|
|
this.volume.value = this._unmutedVolume;
|
|
}
|
|
}
|
|
});
|
|
|
|
/**
|
|
* clean up
|
|
* @returns {Tone.Volume} this
|
|
*/
|
|
Tone.Volume.prototype.dispose = function(){
|
|
this.input.dispose();
|
|
Tone.AudioNode.prototype.dispose.call(this);
|
|
this._writable("volume");
|
|
this.volume.dispose();
|
|
this.volume = null;
|
|
return this;
|
|
};
|
|
|
|
export default Tone.Volume;
|
|
|