#pragma once

#ifndef KEYFRAMEMOVER_H

#define KEYFRAMEMOVER_H

#include "xsheetdragtool.h"

#include "keyframeselection.h"

#include "keyframedata.h"

#include "toonz/txshcell.h"

class TXsheet;

//=============================================================================

// KeyframeMover

//-----------------------------------------------------------------------------

class KeyframeMover {

  //! Bitmask of qualifiers that change the behaviour of the Mover

  int m_qualifiers;

  typedef std::pair<int, int=""> KeyframePosition;  // row, col</int,>

  //! Start Selected keyframes

  std::set<keyframeposition> m_startSelectedKeyframes;</keyframeposition>

  //! Store all keyframes position in selected StageObject.

  std::set<keyframeposition> m_lastKeyframes;</keyframeposition>

  //! Store all keyframes in selected stageObject.

  TKeyframeData *m_lastKeyframeData;

  //! Helper method: returns the current xsheet

  TXsheet *getXsheet() const;

  // m_lastKeyframes and m_lastKeyframeData -> xsheet

  void setKeyframes();

  // m_lastKeyframes and m_lastKeyframeData <- xsheet

  void getKeyframes();

public:

  KeyframeMover();

  ~KeyframeMover();

  enum Qualifier {

    eCopyKeyframes =

        0x1,  // leaves a copy of Keyframes block at the starting point

    eMoveKeyframes =

        0x2,  // move keyframes only (if the destination keyframes are empty)

    eInsertKeyframes    = 0x4,

    eOverwriteKeyframes = 0x8

  };

  void start(TKeyframeSelection *selection, int qualifiers);

  int getQualifiers() const { return m_qualifiers; }

  bool moveKeyframes(int dr,

                     std::set<tkeyframeselection::position> &newPositions,</tkeyframeselection::position>

                     TKeyframeSelection *selection = 0);

  void undoMoveKeyframe() { setKeyframes(); }

};

//=============================================================================

// KeyframeMoverTool

//-----------------------------------------------------------------------------

class KeyframeMoverTool final : public XsheetGUI::DragTool {

  TKeyframeSelection m_startSelection;

  int m_offset;

  int m_firstRow, m_firstCol;

  bool m_selecting;

  bool m_justMovement;

  TPointD m_startPos, m_curPos;

  KeyframeMover *m_mover;

  bool m_firstKeyframeMovement;

  //! Helper method: returns the current keyframe selection

  TKeyframeSelection *getSelection();

  void ctrlSelect(int row, int col);

  void shiftSelect(int row, int col);

  void rectSelect(int row, int col);

public:

  KeyframeMoverTool(XsheetViewer *viewer, bool justMovement = false);

  bool canMove(const TPoint &pos);

  void onCellChange(int row, int col);

  void onClick(const QMouseEvent *event) override;

  void onDrag(const QMouseEvent *event) override;

  void onRelease(const CellPosition &pos) override;

  void drawCellsArea(QPainter &p) override;

};

#endif