/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

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 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * This file incorporates work covered by the following license notice:

 *

 *   Licensed to the Apache Software Foundation (ASF) under one or more

 *   contributor license agreements. See the NOTICE file distributed

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 *   ownership. The ASF licenses this file to you under the Apache

 *   License, Version 2.0 (the "License"); you may not use this file

 *   except in compliance with the License. You may obtain a copy of

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#ifndef INCLUDED_SVX_SVDDRGMT_HXX

#define INCLUDED_SVX_SVDDRGMT_HXX

#include <svx/svddrgv.hxx>

#include <svx/svxdllapi.h>

#include <svx/sdr/contact/objectcontact.hxx>

#include <memory>

class SdrDragStat;

class SAL_DLLPUBLIC_RTTI SdrDragEntry

{

private:

    bool                        mbAddToTransparent : 1;

protected:

    // access for derived classes

    void setAddToTransparent(bool bNew) { mbAddToTransparent = bNew; }

public:

    SdrDragEntry();

    virtual ~SdrDragEntry();

    virtual drawinglayer::primitive2d::Primitive2DContainer createPrimitive2DSequenceInCurrentState(SdrDragMethod& rDragMethod, bool IsDragSizeValid=true) = 0;

    // data read access

    bool getAddToTransparent() const { return mbAddToTransparent; }

};

class SVXCORE_DLLPUBLIC SdrDragEntryPolyPolygon final : public SdrDragEntry

{

private:

    basegfx::B2DPolyPolygon             maOriginalPolyPolygon;

public:

    SdrDragEntryPolyPolygon(basegfx::B2DPolyPolygon aOriginalPolyPolygon);

    virtual ~SdrDragEntryPolyPolygon() override;

    virtual drawinglayer::primitive2d::Primitive2DContainer createPrimitive2DSequenceInCurrentState(SdrDragMethod& rDragMethod, bool IsDragSizeValid=true) override;

};

class SdrDragEntrySdrObject final : public SdrDragEntry

{

private:

    const SdrObject&                                maOriginal;

    rtl::Reference<SdrObject>                       mxClone;

    bool                                            mbModify;

public:

    SdrDragEntrySdrObject(

        const SdrObject& rOriginal,

        bool bModify);

    virtual ~SdrDragEntrySdrObject() override;

    // #i54102# Split createPrimitive2DSequenceInCurrentState in prepareCurrentState and processing,

    // added accessors to original and clone

    void prepareCurrentState(SdrDragMethod& rDragMethod);

    const SdrObject& getOriginal() const { return maOriginal; }

    SdrObject* getClone() { return mxClone.get(); }

    virtual drawinglayer::primitive2d::Primitive2DContainer createPrimitive2DSequenceInCurrentState(SdrDragMethod& rDragMethod, bool IsDragSizeValid=true) override;

};

class SdrDragEntryPrimitive2DSequence final : public SdrDragEntry

{

private:

    drawinglayer::primitive2d::Primitive2DContainer  maPrimitive2DSequence;

public:

    SdrDragEntryPrimitive2DSequence(drawinglayer::primitive2d::Primitive2DContainer&& rSequence);

    virtual ~SdrDragEntryPrimitive2DSequence() override;

    virtual drawinglayer::primitive2d::Primitive2DContainer createPrimitive2DSequenceInCurrentState(SdrDragMethod& rDragMethod, bool IsDragSizeValid=true) override;

};

class SdrDragEntryPointGlueDrag final : public SdrDragEntry

{

private:

    std::vector< basegfx::B2DPoint >                maPositions;

    bool                                            mbIsPointDrag;

public:

    SdrDragEntryPointGlueDrag(std::vector< basegfx::B2DPoint >&& rPositions, bool bIsPointDrag);

    virtual ~SdrDragEntryPointGlueDrag() override;

    virtual drawinglayer::primitive2d::Primitive2DContainer createPrimitive2DSequenceInCurrentState(SdrDragMethod& rDragMethod, bool IsDragSizeValid=true) override;

};

class SVXCORE_DLLPUBLIC SdrDragMethod

{

private:

    std::vector< std::unique_ptr<SdrDragEntry> > maSdrDragEntries;

    sdr::overlay::OverlayObjectList         maOverlayObjectList;

    SdrDragView&                            mrSdrDragView;

    bool                                    mbMoveOnly : 1;

    bool                                    mbSolidDraggingActive : 1;

    bool                                    mbShiftPressed : 1;

protected:

    // access for derivated classes to maSdrDragEntries

    SAL_DLLPRIVATE void clearSdrDragEntries();

    void addSdrDragEntry(std::unique_ptr<SdrDragEntry> pNew);

    virtual void createSdrDragEntries();

    virtual void createSdrDragEntryForSdrObject(const SdrObject& rOriginal);

    // Helper to support inserting a new OverlayObject. It will do all

    // necessary stuff involved with that:

    // - add GridOffset for non-linear ViewToDevice transformation (calc)

    // - add to OverlayManager

    // - add to local OverlayObjectList - ownership change (!)

    // It is centralized here (and protected) to avoid that new usages/

    // implementations forget one of these needed steps.

    void insertNewlyCreatedOverlayObjectForSdrDragMethod(

        std::unique_ptr<sdr::overlay::OverlayObject> pOverlayObject,

        const sdr::contact::ObjectContact& rObjectContact,

        sdr::overlay::OverlayManager& rOverlayManager);

    // access for derivated classes to mrSdrDragView

    SdrDragView& getSdrDragView() { return mrSdrDragView; }

    const SdrDragView& getSdrDragView() const { return mrSdrDragView; }

    // access for derivated classes for bools

    void setMoveOnly(bool bNew) { mbMoveOnly = bNew; }

    void setSolidDraggingActive(bool bNew) { mbSolidDraggingActive = bNew; }

    // internal helpers for creation of standard drag entries

    SAL_DLLPRIVATE void createSdrDragEntries_SolidDrag();

    SAL_DLLPRIVATE void createSdrDragEntries_PolygonDrag();

    SAL_DLLPRIVATE void createSdrDragEntries_PointDrag();

    SAL_DLLPRIVATE void createSdrDragEntries_GlueDrag();

    // old call forwarders to the SdrDragView

    SAL_DLLPRIVATE OUString           ImpGetDescriptionStr(TranslateId pStrCacheID) const;

    SdrHdl*            GetDragHdl() const              { return getSdrDragView().mpDragHdl; }

    SdrHdlKind         GetDragHdlKind() const          { return getSdrDragView().meDragHdl; }

    SdrDragStat&       DragStat()                      { return getSdrDragView().maDragStat; }

    const SdrDragStat& DragStat() const                { return getSdrDragView().maDragStat; }

    Point&             Ref1() const                    { return mrSdrDragView.maRef1; }

    Point&             Ref2() const                    { return mrSdrDragView.maRef2; }

    const SdrHdlList&  GetHdlList() const              { return getSdrDragView().GetHdlList(); }

    void               AddUndo(std::unique_ptr<SdrUndoAction> pUndo) { getSdrDragView().AddUndo(std::move(pUndo)); }

    bool               IsDragLimit()                   { return getSdrDragView().mbDragLimit; }

    const tools::Rectangle&   GetDragLimitRect()              { return getSdrDragView().maDragLimit; }

    const SdrMarkList& GetMarkedObjectList()                   { return getSdrDragView().GetMarkedObjectList(); }

    Point              GetSnapPos(const Point& rPt) const { return getSdrDragView().GetSnapPos(rPt,getSdrDragView().mpMarkedPV); }

    SdrSnap            SnapPos(Point& rPt) const       { return getSdrDragView().SnapPos(rPt,getSdrDragView().mpMarkedPV); }

    inline const tools::Rectangle& GetMarkedRect() const;

    SAL_DLLPRIVATE SdrPageView*       GetDragPV() const;

    SdrObject*         GetDragObj() const;

    bool               IsDraggingPoints() const        { return getSdrDragView().IsDraggingPoints(); }

    bool               IsDraggingGluePoints() const    { return getSdrDragView().IsDraggingGluePoints(); }

    SAL_DLLPRIVATE bool DoAddConnectorOverlays();

    SAL_DLLPRIVATE drawinglayer::primitive2d::Primitive2DContainer AddConnectorOverlays();

public:

    SAL_DLLPRIVATE void resetSdrDragEntries();

    SAL_DLLPRIVATE basegfx::B2DRange getCurrentRange() const;

    // #i58950# also moved constructor implementation to cxx

    SdrDragMethod(SdrDragView& rNewView);

    // #i58950# virtual destructor was missing

    virtual ~SdrDragMethod();

    void Show(bool IsValidSize=true);

    void Hide();

    bool IsShiftPressed() const { return mbShiftPressed; }

    void SetShiftPressed(bool bShiftPressed) { mbShiftPressed = bShiftPressed; }

    virtual OUString GetSdrDragComment() const=0;

    virtual bool BeginSdrDrag()=0;

    virtual void MoveSdrDrag(const Point& rPnt)=0;

    virtual bool EndSdrDrag(bool bCopy)=0;

    virtual void CancelSdrDrag();

    virtual PointerStyle GetSdrDragPointer() const=0;

    virtual void CreateOverlayGeometry(

        sdr::overlay::OverlayManager& rOverlayManager,

        const sdr::contact::ObjectContact& rObjectContact, bool bIsGeometrySizeValid=true);

    SAL_DLLPRIVATE void destroyOverlayGeometry();

    virtual basegfx::B2DHomMatrix getCurrentTransformation() const;

    virtual void applyCurrentTransformationToSdrObject(SdrObject& rTarget);

    virtual void applyCurrentTransformationToPolyPolygon(basegfx::B2DPolyPolygon& rTarget);

    // data read access

    bool getMoveOnly() const { return mbMoveOnly; }

    bool getSolidDraggingActive() const { return mbSolidDraggingActive; }

};

inline const tools::Rectangle& SdrDragMethod::GetMarkedRect() const

{

    return getSdrDragView().meDragHdl==SdrHdlKind::Poly ? getSdrDragView().GetMarkedPointsRect() :

           getSdrDragView().meDragHdl==SdrHdlKind::Glue ? getSdrDragView().GetMarkedGluePointsRect() :

           getSdrDragView().GetMarkedObjRect();

}

//   SdrDragMove

class SVXCORE_DLLPUBLIC SdrDragMove : public SdrDragMethod

{

private:

    tools::Long                        m_nBestXSnap;

    tools::Long                        m_nBestYSnap;

    bool                        m_bXSnapped;

    bool                        m_bYSnapped;

    void ImpCheckSnap(const Point& rPt);

protected:

    virtual void createSdrDragEntryForSdrObject(const SdrObject& rOriginal) override;

public:

    SdrDragMove(SdrDragView& rNewView);

    virtual OUString GetSdrDragComment() const override;

    virtual bool BeginSdrDrag() override;

    virtual void MoveSdrDrag(const Point& rPnt) override;

    virtual bool EndSdrDrag(bool bCopy) override;

    virtual PointerStyle GetSdrDragPointer() const override;

    virtual basegfx::B2DHomMatrix getCurrentTransformation() const override;

    virtual void applyCurrentTransformationToSdrObject(SdrObject& rTarget) override;

};

//   SdrDragResize

class SVXCORE_DLLPUBLIC SdrDragResize : public SdrDragMethod

{

protected:

    double                    m_aXFact;

    double                    m_aYFact;

public:

    SdrDragResize(SdrDragView& rNewView);

    virtual OUString GetSdrDragComment() const override;

    virtual bool BeginSdrDrag() override;

    virtual void MoveSdrDrag(const Point& rPnt) override;

    virtual bool EndSdrDrag(bool bCopy) override;

    virtual PointerStyle GetSdrDragPointer() const override;

    virtual basegfx::B2DHomMatrix getCurrentTransformation() const override;

    virtual void applyCurrentTransformationToSdrObject(SdrObject& rTarget) override;

};

//   SdrDragObjOwn

class SVXCORE_DLLPUBLIC SdrDragObjOwn : public SdrDragMethod

{

private:

    // SdrDragObjOwn always works on a clone since it has no transformation

    // mechanism to modify wireframe visualisations, but uses the

    // SdrObject::applySpecialDrag() method to change a clone of the

    // SdrObject

    rtl::Reference<SdrObject>               mxClone;

protected:

    virtual void createSdrDragEntries() override;

public:

    SdrDragObjOwn(SdrDragView& rNewView);

    virtual ~SdrDragObjOwn() override;

    virtual OUString GetSdrDragComment() const override;

    virtual bool BeginSdrDrag() override;

    virtual void MoveSdrDrag(const Point& rPnt) override;

    virtual bool EndSdrDrag(bool bCopy) override;

    virtual PointerStyle GetSdrDragPointer() const override;

};

#endif // INCLUDED_SVX_SVDDRGMT_HXX

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