/* 
A* -------------------------------------------------------------------
B* This file contains source code for the PyMOL computer program
C* copyright 1998-2000 by Warren Lyford Delano of DeLano Scientific. 
D* -------------------------------------------------------------------
E* It is unlawful to modify or remove this copyright notice.
F* -------------------------------------------------------------------
G* Please see the accompanying LICENSE file for further information. 
H* -------------------------------------------------------------------
I* Additional authors of this source file include:
-* 
-* 
-*
Z* -------------------------------------------------------------------
*/
#ifndef _H_Seq
#define _H_Seq

#include "Ortho.h"
#include "PyMOLObject.h"
#include "ScrollBar.h"
#include <vector>

struct CSeqCol {
  int start;
  int stop;
  int offset;
  int atom_at;                  /* starting offset in list */
  int inverse;
  int unaligned;
  int spacer;
  int state;
  int color;
  int tag;
  int is_abbr, hint_no_space;
};

struct ObjectMolecule;
struct AtomInfoType;

struct CSeqRow {
  ov_size len, ext_len;
  int label_flag, column_label_flag;
  int color;
  pymol::vla<char> txt;
  pymol::vla<CSeqCol> col;
  pymol::vla<CSeqCol> fill;
  int nCol, cCol;
  int nFill;
  pymol::vla<int> char2col;
  pymol::vla<int> atom_lists;
  ObjectNameType name;          /* associated object */
  ObjectMolecule *obj;   /* this pointer only valid during update */
  AtomInfoType *last_ai;
  int accum, current, title_width;      /* temporary stores for aligning */
};

struct CSeqHandler {
  virtual CSeqRow* click(PyMOLGlobals * G, std::vector<CSeqRow>& rowVLA, int button, int row, int col,
                      int mod, int x, int y) = 0;
  virtual CSeqRow* drag(PyMOLGlobals * G, std::vector<CSeqRow>& rowVLA, int row, int col, int mod) = 0;
  virtual CSeqRow* release(PyMOLGlobals * G, std::vector<CSeqRow>& rowVLA, int button, int row, int col,
                        int mod) = 0;
 virtual void refresh(PyMOLGlobals * G, std::vector<CSeqRow>& rowVLA) = 0;

  bool box_active{};
  int box_row{};
  int box_start_col{};
  int box_stop_col{};
};

struct CSeq : public Block {
  bool DragFlag { false };
  bool ScrollBarActive { true };
  int NSkip {};
  ScrollBar m_ScrollBar;
  std::vector<CSeqRow> Row;
  int NRow { 0 };
  int Size {};
  int VisSize {};
  int Changed {};
  bool Dirty { true };
  int LineHeight { 13 };
  int CharWidth { 8 };
  int ScrollBarWidth { 16 };
  int ScrollBarMargin { 2 };
  int CharMargin { 2 };
  int LastRow { -1 };
  CSeqHandler *Handler {};         /* borrowed pointer */

  CSeq(PyMOLGlobals * G) : Block(G), m_ScrollBar(G, true) {}

  int click(int button, int x, int y, int mod) override;
  void draw(CGO* orthoCGO) override;
  int drag(int x, int y, int mod) override;
  int release(int button, int x, int y, int mod) override;
  void reshape(int width, int height) override;
};

int SeqInit(PyMOLGlobals * G);
void SeqFree(PyMOLGlobals * G);
Block *SeqGetBlock(PyMOLGlobals * G);

int SeqGetHeight(PyMOLGlobals * G);
void SeqSetHandler(PyMOLGlobals * G, CSeqHandler * handler);
void SeqSetRow(PyMOLGlobals * G, std::vector<CSeqRow>&& row, int nRow);
void SeqDirty(PyMOLGlobals * G);        /* sequence dirty -- need to update selections */
void SeqChanged(PyMOLGlobals * G);      /* sequence changed -- need to rebuild */
void SeqUpdate(PyMOLGlobals * G);

#endif