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

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 *

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

 *

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

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

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#ifndef INCLUDED_SVX_SVDDRAG_HXX

#define INCLUDED_SVX_SVDDRAG_HXX

#include <tools/gen.hxx>

#include <tools/fract.hxx>

#include <svx/svxdllapi.h>

#include <memory>

#include <vector>

// Status information for specialized object dragging. In order for the model

// to stay status free, the status data is kept on the View

// and handed over to the object at the appropriate time as a parameter.

// This also includes the status of the operation and Interactive

// Object creation. In this case, pHdl is null.

class SdrHdl;

class SdrView;

class SdrPageView;

class SdrDragMethod;

struct SdrDragStatUserData

{

    virtual ~SdrDragStatUserData() = 0;

};

class SVXCORE_DLLPUBLIC SdrDragStat final

{

    SdrHdl*  m_pHdl;      // The Handle for the User

    SdrView* m_pView;

    SdrPageView* m_pPageView;

    std::vector<Point> mvPnts; // All previous Points: [0]=Start, [Count()-2]=Prev

    Point     m_aRef1;     // Referencepoint: Resize fixed point, (axis of rotation,

    Point     m_aRef2;     // axis of reflection, ...)

    Point     m_aPos0;     // Position at the last Event

    Point     m_aRealNow;  // Current dragging position without Snap, Ortho and Limit

    tools::Rectangle m_aActionRect;

    bool      m_bEndDragChangesAttributes;

    bool      m_bEndDragChangesGeoAndAttributes;

    /// Table row drag: table will re-layout itself later.

    bool      mbEndDragChangesLayout;

    bool      m_bMouseIsUp;

    bool      m_bShown;    // Xor visible?

    sal_uInt16    m_nMinMov;   // So much has to be minimally moved first

    bool      m_bMinMoved; // MinMove surpassed?

    bool      m_bHorFixed; // Dragging only vertical

    bool      m_bVerFixed; // Dragging only horizontal

    bool      m_bWantNoSnap; // To decide if pObj-> MovCreate () should use NoSnapPos or not.

                          // Therefore, NoSnapPos is written into the buffer.

    bool  m_bOrtho4;

    bool  m_bOrtho8;

    SdrDragMethod* m_pDragMethod;

    std::unique_ptr<SdrDragStatUserData>  mpUserData;     // Userdata

    SAL_DLLPRIVATE void Clear();

    sal_Int32 GetPrevPos() const { return mvPnts.size()-(mvPnts.size()>1 ? 2 : 1); }

    // This is passed all the way through to ApplySpecialDrag of the Edge Object

    // For LOK, we cannot really specify which gluepoint to select by default

    // It selects the nearest gluepoints after DragEnd event.

    // When multiple objects are on top of each other or somehow their gluepoints

    // collide, the gluepoint is selected from the lowest order numbered object

    // We can pass the ord number information inside the draginfo and choose the correct shape

    struct {

        sal_Int32 objectOrdNum = -1;

    } mGlueOptions;

public:

    SdrDragStat()                                    { Reset(); }

    SAL_DLLPRIVATE ~SdrDragStat();

    void         Reset();

    SdrView*     GetView() const                     { return m_pView; }

    void         SetView(SdrView* pV)                { m_pView=pV; }

    SdrPageView* GetPageView() const                 { return m_pPageView; }

    void         SetPageView(SdrPageView* pPV)       { m_pPageView=pPV; }

    const Point& GetPoint(sal_Int32 nNum) const      { return mvPnts[nNum]; }

    sal_Int32    GetPointCount() const               { return mvPnts.size(); }

    const Point& GetStart() const                    { return mvPnts[0]; }

    const Point& GetPrev() const                     { return mvPnts[GetPrevPos()]; }

    const Point& GetPos0() const                     { return m_aPos0;  }

    const Point& GetNow() const                      { return mvPnts.back(); }

    void         SetNow(Point const &pt)             { mvPnts.back() = pt; }

    const Point& GetRef1() const                     { return m_aRef1;  }

    void         SetRef1(const Point &pt)            { m_aRef1 = pt;  }

    const Point& GetRef2() const                     { return m_aRef2;  }

    void         SetRef2(const Point &pt)            { m_aRef2 = pt;  }

    const        SdrHdl* GetHdl() const              { return m_pHdl;   }

    void         SetHdl(SdrHdl* pH)                  { m_pHdl=pH;       }

    SdrDragStatUserData* GetUser() const             { return mpUserData.get();  }

    void         SetUser(std::unique_ptr<SdrDragStatUserData> pU) { mpUserData = std::move(pU); }

    bool         IsShown() const                     { return m_bShown; }

    void         SetShown(bool bOn)                  { m_bShown=bOn; }

    bool         IsMinMoved() const                  { return m_bMinMoved; }

    void         SetMinMoved()                       { m_bMinMoved=true; }

    void         ResetMinMoved()                     { m_bMinMoved=false; }

    void         SetMinMove(sal_uInt16 nDist)        { m_nMinMov=nDist; if (m_nMinMov<1) m_nMinMov=1; }

    bool         IsHorFixed() const                  { return m_bHorFixed; }

    void         SetHorFixed(bool bOn)               { m_bHorFixed=bOn; }

    bool         IsVerFixed() const                  { return m_bVerFixed; }

    void         SetVerFixed(bool bOn)               { m_bVerFixed=bOn; }

    // Here, the object can say: "I do not want to snap to coordinates!"

    // for example, the angle of the arc ...

    bool         IsNoSnap() const                     { return m_bWantNoSnap; }

    void         SetNoSnap(bool bOn = true)           { m_bWantNoSnap=bOn; }

    // And here the Obj say which Ortho (if there is one) can be usefully applied to him.

    // Ortho4 means Ortho in four directions (for Rect and CIRT)

    bool         IsOrtho4Possible() const             { return m_bOrtho4; }

    void         SetOrtho4Possible(bool bOn = true)   { m_bOrtho4=bOn; }

    // Ortho8 means Ortho in 8 directions (for lines)

    bool         IsOrtho8Possible() const             { return m_bOrtho8; }

    void         SetOrtho8Possible(bool bOn = true)   { m_bOrtho8=bOn; }

    // Is set by an object that was dragged.

    bool         IsEndDragChangesAttributes() const    { return m_bEndDragChangesAttributes; }

    void         SetEndDragChangesAttributes(bool bOn) { m_bEndDragChangesAttributes=bOn; }

    bool         IsEndDragChangesGeoAndAttributes() const   { return m_bEndDragChangesGeoAndAttributes; }

    void         SetEndDragChangesGeoAndAttributes(bool bOn) { m_bEndDragChangesGeoAndAttributes=bOn; }

    bool         IsEndDragChangesLayout() const   { return mbEndDragChangesLayout; }

    void         SetEndDragChangesLayout(bool bOn) { mbEndDragChangesLayout=bOn; }

    // Is set by the view and can be evaluated by Obj

    bool         IsMouseDown() const                  { return !m_bMouseIsUp; }

    void         SetMouseDown(bool bDown)         { m_bMouseIsUp=!bDown; }

    SAL_DLLPRIVATE void         Reset(const Point& rPnt);

    void         NextMove(const Point& rPnt);

    SAL_DLLPRIVATE void         NextPoint();

    SAL_DLLPRIVATE void         PrevPoint();

    bool         CheckMinMoved(const Point& rPnt);

    tools::Long         GetDX() const                     { return GetNow().X()-GetPrev().X(); }

    tools::Long         GetDY() const                     { return GetNow().Y()-GetPrev().Y(); }

    Fraction     GetXFact() const;

    Fraction     GetYFact() const;

    SdrDragMethod* GetDragMethod() const             { return m_pDragMethod; }

    void         SetDragMethod(SdrDragMethod* pMth)  { m_pDragMethod=pMth; }

    const tools::Rectangle& GetActionRect() const          { return m_aActionRect; }

    void         SetActionRect(const tools::Rectangle& rR) { m_aActionRect=rR; }

    // Also considering 1stPointAsCenter

    SAL_DLLPRIVATE void         TakeCreateRect(tools::Rectangle& rRect) const;

    auto&        GetGlueOptions() { return mGlueOptions; }

};

#endif // INCLUDED_SVX_SVDDRAG_HXX

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