e3dsceneupdater.hxx

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#ifndef INCLUDED_SVX_E3DSCENEUPDATER_HXX
#define INCLUDED_SVX_E3DSCENEUPDATER_HXX

#include <svx/svxdllapi.h>
#include <drawinglayer/geometry/viewinformation3d.hxx>
#include <memory>
#include <optional>

class SdrObject;
class E3dScene;

class SVXCORE_DLLPUBLIC E3DModifySceneSnapRectUpdater
{
    // the scene which may be changed. This gets set to the outmost scene
    // of the to-be-changed 3D object when the scene has a 3d transformation
    // stack at construction time. In all other cases it's set to zero and
    // no action needs to be taken
    E3dScene* mpScene;

    // the 3d transformation stack at the time of construction, valid when
    // mpScene is not zero
    std::optional<drawinglayer::geometry::ViewInformation3D> mpViewInformation3D;

public:
    // the constructor evaluates and sets the members at construction time
    E3DModifySceneSnapRectUpdater(const SdrObject* mpObject);

    // the destructor will take action if mpScene is not zero and modify the
    // 2D geometry of the target scene
    ~E3DModifySceneSnapRectUpdater();
};

#endif // INCLUDED_SVX_E3DSCENEUPDATER_HXX

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