Set up stacked widget.

src/client/audio_editor/AudioEditorView.cpp

@@ -0,0 +1,16 @@
+#include "AudioEditorView.h"
+#include "Label.h"
+
+AudioEditorView::AudioEditorView()
+{
+    auto label = Label::Create();
+    label->SetLabel("Audio Editor");
+    label->SetBackgroundColor(Color::Create(200, 189, 160));
+    label->SetMargin(1);
+    AddWidget(std::move(label));
+}
+
+std::unique_ptr<AudioEditorView> AudioEditorView::Create()
+{
+    return std::make_unique<AudioEditorView>();
+}

src/client/audio_editor/AudioEditorView.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include "Widget.h"
+
+class AudioEditorView : public Widget
+{
+public:
+
+    AudioEditorView();
+
+    static std::unique_ptr<AudioEditorView> Create();
+};
+
+using AudioEditorViewUPtr = std::unique_ptr<AudioEditorView>;