Add action to switch preview scene

src/headers/macro-action-preview-scene.hpp

@@ -0,0 +1,54 @@
+#pragma once
+#include "macro-action-edit.hpp"
+#include "scene-selection.hpp"
+
+class MacroActionPreviewScene : public MacroAction {
+public:
+	bool PerformAction();
+	void LogAction();
+	bool Save(obs_data_t *obj);
+	bool Load(obs_data_t *obj);
+	std::string GetShortDesc();
+	std::string GetId() { return id; };
+	static std::shared_ptr<MacroAction> Create()
+	{
+		return std::make_shared<MacroActionPreviewScene>();
+	}
+
+	SceneSelection _scene;
+
+private:
+	static bool _registered;
+	static const std::string id;
+};
+
+class MacroActionPreviewSceneEdit : public QWidget {
+	Q_OBJECT
+
+public:
+	MacroActionPreviewSceneEdit(
+		QWidget *parent,
+		std::shared_ptr<MacroActionPreviewScene> entryData = nullptr);
+	void UpdateEntryData();
+	static QWidget *Create(QWidget *parent,
+			       std::shared_ptr<MacroAction> action)
+	{
+		return new MacroActionPreviewSceneEdit(
+			parent,
+			std::dynamic_pointer_cast<MacroActionPreviewScene>(
+				action));
+	}
+
+private slots:
+	void SceneChanged(const SceneSelection &);
+signals:
+	void HeaderInfoChanged(const QString &);
+
+protected:
+	SceneSelectionWidget *_scenes;
+	std::shared_ptr<MacroActionPreviewScene> _entryData;
+
+private:
+	QHBoxLayout *_mainLayout;
+	bool _loading = true;
+};