private void DrawPreviewGUI()
{
GUILayout.FlexibleSpace();
if (_wavClipEditor == null)
{
_wavClipEditor = UnityEditor.Editor.CreateEditor(_wavClip);
}
if (_clipEditorBg == null)
{
_clipEditorBg = new GUIStyle();
_clipEditorBg.normal.background = Texture2D.blackTexture;
}
int currentSample = GetSamplePosition();
if (currentSample > 0)
{
// Playback position gets reset to zero after pausing. Save the last one to make
// finding the desired loops easier.
_lastPreviewSample = currentSample;
}
using (new EditorGUILayout.HorizontalScope())
{
GUILayout.Label("Preview");
using (new EditorGUI.DisabledScope(_zoomLevel / 1.5f < 1.0f))
{
if (GUILayout.Button("-"))
{
_zoomLevel /= 1.5f;
}
}
using (new EditorGUI.DisabledScope(_zoomLevel * 1.5f > 20.0f))
{
if (GUILayout.Button("+"))
{
_zoomLevel *= 1.5f;
}
}
GUILayout.FlexibleSpace();
_wavClipEditor.OnPreviewSettings();
}
using (var scrollView = new EditorGUILayout.ScrollViewScope(_previewScrollPos))
{
_previewScrollPos = scrollView.scrollPosition;
_wavClipEditor.OnPreviewGUI(
GUILayoutUtility.GetRect(position.width * _zoomLevel, 100, GUILayout.ExpandWidth(false)),
_clipEditorBg);
}
using (new EditorGUILayout.HorizontalScope())
{
GUILayout.Label("Set Loop Point to Current Preview Position: ", GUILayout.ExpandWidth(false));
GUILayout.Label(_useSeconds
? SecondsToDurationString(SamplesToSeconds(_lastPreviewSample))
: _lastPreviewSample.ToString(),
GUILayout.Width(80));
if (GUILayout.Button("Start", GUILayout.Width(80)))
{
_wavData.GetOrAddFirstLoop().StartSample = _lastPreviewSample;
}
if (GUILayout.Button("End", GUILayout.Width(80)))
{
_wavData.GetOrAddFirstLoop().EndSample = _lastPreviewSample;
}
}
// Enable looping by default
_wavClipEditor.GetType()
.GetField("s_Loop", BindingFlags.Static | BindingFlags.NonPublic)?
.SetValue(null, true);
}