WIP: waveform visualization

Source/ProjectController.cs

@@ -6,21 +6,46 @@ namespace AudioEditor;
 [GlobalClass]
 public partial class ProjectController : Node
 {
-    [Signal] public delegate void AudioClipDroppedEventHandler(Vector2 atPosition, string clipName, double startTime, double endTime);
+    [Signal] public delegate void AudioClipDroppedEventHandler(Vector2 atPosition, string path, string clipName, double startTime, double endTime);
 
     public override void _Ready()
     {
         GetWindow().FilesDropped += FilesDropped;
     }
 
+    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 fileName = Path.GetFileName(files[0]);
+        var path = files[0];
+        var fileName = Path.GetFileName(path);
 
-        GD.Print(fileName);
+        AudioFileAnalyzer.Instance.AnalyzeFile(path, out WaveformInfo waveformInfo);
 
-        EmitSignal(SignalName.AudioClipDropped, mousePosition, fileName, 0, 10 * 1000);
+        GD.Print(path);
+
+        EmitSignal(SignalName.AudioClipDropped, mousePosition, path, fileName, 0, waveformInfo.Length.TotalMilliseconds);
     }
 }