audioeditor/Source/ProjectController.cs

using System.IO;
using Godot;

namespace AudioEditor;

[GlobalClass]
public partial class ProjectController : Node
{
    [Signal] public delegate void AudioClipDroppedEventHandler(Vector2 atPosition, string path, string clipName, double startTime, double endTime);
    [Signal] public delegate void OnTrackAddedEventHandler(int idx);
    [Signal] public delegate void OnTrackRenamedEventHandler(int idx, string name);
    [Signal] public delegate void OnTrackDuplicatedEventHandler(int idx);
    [Signal] public delegate void OnTrackDeletedEventHandler(int trackIdx);

    public override void _Ready()
    {
        GetWindow().FilesDropped += FilesDropped;
    }

    public void AddTrack(int idx = 0)
    {
        _project.AddTrack();
        EmitSignal(SignalName.OnTrackAdded, _project.TrackCount - 1);
    }

    public void DuplicateTrack(int idx)
    {
        _project.DuplicateTrack(idx);
        EmitSignal(SignalName.OnTrackDuplicated, idx);
    }

    public void RenameTrack(int idx, string name)
    {
        _project.RenameTrack(idx, name);
        EmitSignal(SignalName.OnTrackRenamed, idx, name);
    }

    public void DeleteTrack(int idx)
    {
        _project.DeleteTrack(idx);
        EmitSignal(SignalName.OnTrackDeleted, idx);
    }

    public void CreateAudioClipPreview(Control audioClip)
    {
        // GD.Print(audioClip.Clas());
        var path = audioClip.Get("clip_path").AsString();

        if (string.IsNullOrEmpty(path))
        {
            return;
        }

        if (!AudioFileAnalyzer.Instance.TryGetFromCache(path, out WaveformInfo waveformInfo))
        {
            return;
        }

        if (audioClip.HasNode("%Waveform"))
        {
            var waveform = audioClip.GetNode<Waveform>("%Waveform");
            waveform.SetWaveformInfo(waveformInfo);
        }
    }

    private void FilesDropped(string[] files)
    {
        var mousePosition = GetViewport().GetMousePosition();

        var path = files[0];
        var fileName = Path.GetFileName(path);

        AudioFileAnalyzer.Instance.AnalyzeFile(path, out WaveformInfo waveformInfo);

        GD.Print(path);

        EmitSignal(SignalName.AudioClipDropped, mousePosition, path, fileName, 0, waveformInfo.Length.TotalMilliseconds);
    }

    private Project _project = new();
}