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src/core/commands/TransformCommand.h

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+#pragma once
+
+#include "../CommandHistory.h"
+#include <pxr/usd/usd/stage.h>
+#include <pxr/usd/sdf/path.h>
+#include <pxr/usd/sdf/layer.h>
+#include <pxr/base/gf/vec3d.h>
+#include <pxr/base/gf/vec3f.h>
+#include <pxr/usd/usdGeom/xformCommonAPI.h>
+#include <string>
+
+namespace UsdLayerManager {
+
+/// Reverses a complete TRS edit on a single prim (from gizmo drag or
+/// Property panel field commit).  Stores the prim path, edit-target layer,
+/// and pre/post translate/rotate/scale triples.
+class TransformCommand : public ICommand {
+public:
+    TransformCommand(pxr::UsdStageRefPtr       stage,
+                     const pxr::SdfPath&        primPath,
+                     pxr::SdfLayerHandle        editLayer,
+                     const pxr::GfVec3d&        oldTranslate,
+                     const pxr::GfVec3f&        oldRotate,
+                     const pxr::GfVec3f&        oldScale,
+                     const pxr::GfVec3d&        newTranslate,
+                     const pxr::GfVec3f&        newRotate,
+                     const pxr::GfVec3f&        newScale,
+                     pxr::UsdGeomXformCommonAPI::RotationOrder rotOrder,
+                     std::string                description = "Transform");
+
+    void Execute() override;
+    void Undo()    override;
+    std::string GetDescription() const override { return m_description; }
+
+private:
+    void Apply(const pxr::GfVec3d& t,
+               const pxr::GfVec3f& r,
+               const pxr::GfVec3f& s);
+
+    pxr::UsdStageRefPtr  m_stage;
+    pxr::SdfPath         m_primPath;
+    pxr::SdfLayerHandle  m_editLayer;
+
+    pxr::GfVec3d  m_oldTranslate;
+    pxr::GfVec3f  m_oldRotate;
+    pxr::GfVec3f  m_oldScale;
+
+    pxr::GfVec3d  m_newTranslate;
+    pxr::GfVec3f  m_newRotate;
+    pxr::GfVec3f  m_newScale;
+
+    pxr::UsdGeomXformCommonAPI::RotationOrder m_rotOrder;
+    std::string   m_description;
+};
+
+} // namespace UsdLayerManager