MRChangeXfAction.h

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#pragma once
#include "MRHistoryAction.h"
#include "MRObject.h"
#include "MRAffineXf3.h"
#include <memory>
 
namespace MR
{
 
class ChangeXfAction : public HistoryAction
{
public:
    ChangeXfAction( const std::string& name, const std::shared_ptr<Object>& obj ) :
        obj_{ obj },
        xf_{ obj->xf() },
        name_{ name }
    {
    }
 
    ChangeXfAction( const std::string& name, const std::shared_ptr<Object>& obj, const AffineXf3f& newXf ) :
        obj_{ obj },
        xf_{ obj->xf() },
        name_{ name }
    {
        if ( obj_ )
            obj_->setXf( newXf );
    }
 
    virtual std::string name() const override
    {
        return name_;
    }
 
    virtual void action( HistoryAction::Type ) override
    {
        if ( !obj_ )
            return;
        auto tmpXf = obj_->xf();
        obj_->setXf( xf_ );
        xf_ = tmpXf;
    }
 
    [[nodiscard]] virtual size_t heapBytes() const override
    {
        return name_.capacity();
    }
 
    const std::shared_ptr<Object> & obj() const
    {
        return obj_;
    }
 
private:
    std::shared_ptr<Object> obj_;
    AffineXf3f xf_;
    std::string name_;
};
 
} //namespace MR