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

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// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
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using osu.Framework.Allocation;
using osu.Framework.Audio;
using osu.Framework.Graphics;
using System.Collections.Generic;
using System.Linq;
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using osu.Game.Graphics.UserInterface;
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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);
if (audio != null)
{
audio.OnNewDevice -= onDeviceChanged;
audio.OnLostDevice -= onDeviceChanged;
}
}
private void updateItems()
{
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var deviceItems = new List<string> { string.Empty };
deviceItems.AddRange(audio.AudioDeviceNames);
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var preferredDeviceName = audio.AudioDevice.Value;
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if (deviceItems.All(kv => kv != preferredDeviceName))
deviceItems.Add(preferredDeviceName);
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// 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
// 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[]
{
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dropdown = new AudioDeviceSettingsDropdown
{
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Keywords = new[] { "speaker", "headphone", "output" }
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}
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};
updateItems();
dropdown.Bindable = audio.AudioDevice;
audio.OnNewDevice += onDeviceChanged;
audio.OnLostDevice += onDeviceChanged;
}
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private class AudioDeviceSettingsDropdown : SettingsDropdown<string>
{
protected override OsuDropdown<string> CreateDropdown() => new AudioDeviceDropdownControl();
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private class AudioDeviceDropdownControl : DropdownControl
{
protected override string GenerateItemText(string item)
=> string.IsNullOrEmpty(item) ? "Default" : base.GenerateItemText(item);
}
}
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}
}