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osu-lazer/osu.Game/Overlays/Settings/Sections/Audio/AudioDevicesSettings.cs

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// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using osu.Framework.Allocation;
using osu.Framework.Audio;
using osu.Framework.Graphics;
using System.Collections.Generic;
using System.Linq;
namespace osu.Game.Overlays.Settings.Sections.Audio
{
public class AudioDevicesSettings : SettingsSubsection
{
protected override string Header => "Devices";
private AudioManager audio;
private SettingsDropdown<string> dropdown;
[BackgroundDependencyLoader]
private void load(AudioManager audio)
{
this.audio = audio;
}
protected override void Dispose(bool isDisposing)
{
base.Dispose(isDisposing);
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if (audio != null)
{
audio.OnNewDevice -= onDeviceChanged;
audio.OnLostDevice -= onDeviceChanged;
}
}
private void updateItems()
{
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var deviceItems = new List<KeyValuePair<string, string>> { new KeyValuePair<string, string>("Default", string.Empty) };
deviceItems.AddRange(audio.AudioDeviceNames.Select(d => new KeyValuePair<string, string>(d, d)));
var preferredDeviceName = audio.AudioDevice.Value;
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if (deviceItems.All(kv => kv.Value != preferredDeviceName))
deviceItems.Add(new KeyValuePair<string, string>(preferredDeviceName, preferredDeviceName));
// The option dropdown for audio device selection lists all audio
// device names. Dropdowns, however, may not have multiple identical
// keys. Thus, we remove duplicate audio device names from
// the dropdown. BASS does not give us a simple mechanism to select
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// specific audio devices in such a case anyways. Such
// functionality would require involved OS-specific code.
dropdown.Items = deviceItems.Distinct().ToList();
}
private void onDeviceChanged(string name) => updateItems();
protected override void LoadComplete()
{
base.LoadComplete();
Children = new Drawable[]
{
dropdown = new SettingsDropdown<string>()
};
updateItems();
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dropdown.Bindable = audio.AudioDevice;
audio.OnNewDevice += onDeviceChanged;
audio.OnLostDevice += onDeviceChanged;
}
}
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}