UI: Rename 'obs' dir to 'UI'

This is to prevent confusion both when prefixing commits and when
reading the directory structure for the first time.

UI/window-basic-transform.hpp

@@ -0,0 +1,48 @@
+#pragma once
+
+#include <obs.hpp>
+#include <memory>
+
+#include "ui_OBSBasicTransform.h"
+
+class OBSBasic;
+
+class OBSBasicTransform : public QDialog {
+	Q_OBJECT
+
+private:
+	std::unique_ptr<Ui::OBSBasicTransform> ui;
+
+	OBSBasic     *main;
+	OBSSceneItem item;
+	OBSSignal    channelChangedSignal;
+	OBSSignal    transformSignal;
+	OBSSignal    removeSignal;
+	OBSSignal    selectSignal;
+	OBSSignal    deselectSignal;
+
+	bool         ignoreTransformSignal = false;
+	bool         ignoreItemChange      = false;
+
+	void HookWidget(QWidget *widget, const char *signal, const char *slot);
+
+	void SetScene(OBSScene scene);
+	void SetItem(OBSSceneItem newItem);
+
+	static void OBSChannelChanged(void *param, calldata_t *data);
+
+	static void OBSSceneItemTransform(void *param, calldata_t *data);
+	static void OBSSceneItemRemoved(void *param, calldata_t *data);
+	static void OBSSceneItemSelect(void *param, calldata_t *data);
+	static void OBSSceneItemDeselect(void *param, calldata_t *data);
+
+private slots:
+	void RefreshControls();
+	void SetItemQt(OBSSceneItem newItem);
+	void OnBoundsType(int index);
+	void OnControlChanged();
+	void OnCropChanged();
+
+public:
+	OBSBasicTransform(OBSBasic *parent);
+};