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#ifndef _HEADER_BUTTONS_H

#define _HEADER_BUTTONS_H

#include 

#include 

#include 

#include "gr-draw.h"

struct TXButton

{

  TXButton(int n = -1, int w = 100, int h = 20) : num(n), w(w), h(h), drw(1) {}

  TXButton(const TXButton &b) : w(b.w), h(b.h) {}

  TXButton &operator=(const TXButton &b) {w = b.w; h = b.h; num = b.num; return *this;}

  virtual void Draw(TGraphDraw *drw, int x0, int y0,

      unsigned long dcolor, unsigned long lcolor, unsigned long tcolor, int ins = 0);

  virtual int ButtonPnt(int xp, int yp, int &n, int kind = 0);

  int num, w, h, drw;

};

void TXButton::Draw(TGraphDraw *drw, int x0, int y0,

         unsigned long dcolor, unsigned long /*lcolor*/,

         unsigned long /*tcolor*/, int /*ins*/)

{

  if (!drw || !drw->IsDraw()) return;

  drw->SetColor(dcolor);

  drw->DrawLine(x0, y0, x0 + w, y0);

  drw->DrawLine(x0, y0, x0, y0 + h);

  drw->DrawLine(x0 + w, y0, x0 + w, y0 + h);

  drw->DrawLine(x0, y0 + h, x0 + w, y0 + h);

}

int TXButton::ButtonPnt(int xp, int yp, int &n, int /*kind*/)

{

  n = num;

  return (xp >= 0 && yp >= 0 && xp <= w && yp <= h) ? 1 : INT_MIN;

}

struct TextButton : public TXButton

{

  enum {thick_def = 3};

  TextButton(int n = -1, int w = 100, int h = 20, char *text = 0, int thick = thick_def)

               : TXButton(n, w, h), text(text), thick(thick) {CheckDefW();}

  TextButton(const TXButton &b, char *text = 0, int thick = thick_def)

               : TXButton(b), text(text), thick(thick) {CheckDefW();}

  TextButton(const TextButton &b) : TXButton(b), text(b.text), thick(b.thick) {}

  TextButton &operator=(const TextButton &b);

  virtual void Draw(TGraphDraw *drw, int x0, int y0,

      unsigned long dcolor, unsigned long lcolor, unsigned long tcolor, int ins = 0);

  void CheckDefW();

  int thick;

  char *text;

};

inline TextButton &TextButton::operator=(const TextButton &b)

{

  text = b.text;

  TXButton::operator=(b);

  return *this;

}

void TextButton::Draw(TGraphDraw *drw, int x0, int y0,

           unsigned long dcolor, unsigned long lcolor, unsigned long tcolor, int ins)

{

  if (!drw || !drw->IsDraw()) return;

  int i;

  if (thick <= -1 && thick >= -5)

  {

    drw->SetColor(dcolor);

    for (i = 0; i < -thick; i++)

    {

      drw->DrawLine(x0 + i, y0 + i, x0 + w - i, y0 + i);

      drw->DrawLine(x0 + i, y0 + i, x0 + i, y0 + h - i);

      drw->DrawLine(x0 + w - i, y0 + i, x0 + w - i, y0 + h - i);

      drw->DrawLine(x0 + i, y0 + h - i, x0 + w - i, y0 + h - i);

    }

  }

  else if (thick > 0)

  {

    for (i = 0; i < thick; i++)

    {

      drw->SetColor(ins ? dcolor : lcolor);

      drw->DrawLine(x0 + i, y0 + i, x0 + w - i, y0 + i);

      drw->DrawLine(x0 + i, y0 + i, x0 + i, y0 + h - i);

      drw->SetColor(ins ? lcolor : dcolor);

      drw->DrawLine(x0 + w - i, y0 + i, x0 + w - i, y0 + h - i);

      drw->DrawLine(x0 + i, y0 + h - i, x0 + w - i, y0 + h - i);

    }

  }

  else TXButton::Draw(drw, x0, y0, dcolor, lcolor, tcolor, ins);

  if (text)

  {

    drw->SetColor(tcolor);

    drw->DrawText(x0 + 7, y0 + (h - drw->GetTextH(text)) / 2, text);

  }

}

inline void TextButton::CheckDefW()

{

  if (w < 0 && text) w = 15 + strlen(text) * 8;

}

class TXButtonArray

{

public:

  TXButtonArray(int d = 10) : button(0), nbutton(0), mbutton(0),

                              delt(d), ins(-1), k_ins(0) {}

  ~TXButtonArray() {Clear();}

  void Clear();

  void Add(TXButton *bt);

  void Add(int n = -1, int w = 100, int h = 20, char *str = 0,

           int thick = TextButton::thick_def);

  TXButton *operator[](int i) {return button[i];}

  int GetNButton() const {return nbutton;}

  int GetInsert() const {return ins;}

  TXButton *GetButton(int n);

  int GetDelt() const {return delt;}

  void SetDelt(int d) {delt = d;}

  int GetParam(int w, int p) const;

  int GetNumStr(int w) const {return GetParam(w, 0);}

  int GetHeight(int w) const {return GetParam(w, 1);}

  int GetFWidth() const;

  void Draw(TGraphDraw *drw, int x0, int y0, int w);

  void Draw(TGraphDraw *drw, int x0, int y0, int w,

     unsigned long dcolor, unsigned long lcolor, unsigned long tcolor, int insd = 1);

  int ButtonPnt(int xp, int yp, int w, int &n, int kind = 0);

protected:

  void Extend(int n = -1);

  TXButton **button;

  int nbutton, mbutton;

  int delt;

  int ins, k_ins;

};

void TXButtonArray::Clear()

{

  int i;

  if (button)

  {

    for (i = 0; i < nbutton; i++) if (button[i]) delete button[i];

    delete[] button;

  }

  button = 0; nbutton = 0; mbutton = 0;

}

void TXButtonArray::Extend(int n)

{

  if (n < 0) n = nbutton + 1;

  if (mbutton < n)

  {

    typedef TXButton *TXButtonPnt;

    TXButton **b_old = button;

    int m_old = mbutton;

    mbutton = n * 2;

    button = new TXButtonPnt[mbutton];

    for (int i = 0; i < mbutton; i++) button[i] = 0;

    if (b_old)

    {

      for (int i = 0; i < m_old; i++) button[i] = b_old[i];

      delete[] b_old;

    }

  }

}

void TXButtonArray::Add(TXButton *bt)

{

  Extend();

  if (button[nbutton]) delete[] button[nbutton];

  button[nbutton] = bt;

  nbutton++;

}

void TXButtonArray::Add(int n, int w, int h, char *str, int thick)

{

  if (thick < 0 && !str) Add(new TXButton(n, w, h));

  else Add(new TextButton(n, w, h, str, thick));

}

TXButton *TXButtonArray::GetButton(int n)

{

  int i;

  for (i = 0; i < nbutton; i++)

  {

    if (button[i] && button[i]->num == n) return button[i];

  }

  return 0;

}

int TXButtonArray::GetFWidth() const

{

  int i, x = 0;

  for (i = 0; i < nbutton; i++)

  {

    if (button[i] && button[i]->drw > 0) x += button[i]->w + delt;

  }

  if (x != 0) x -= delt;

  return x;

}

int TXButtonArray::GetParam(int w, int p) const

{

  int i, k = 0;

  int x = 0, y = 0, ym = 0;

  for (i = 0; i < nbutton; i++) if (button[i] && button[i]->drw > 0)

  {

    int xx = x + button[i]->w + delt;

    if (x != 0 && xx > w + delt)

    {

      k++; y += ym + delt; ym = 0;

      x = 0; xx = x + button[i]->w + delt;

    }

    x = xx;

    if (ym < button[i]->h) ym = button[i]->h;

  }

  if (x != 0) {k++; y += ym;}

  else if (y != 0) y -= delt;

  if (p == 0) return k;

  else if (p == 1) return y;

  else return -1;

}

void TXButtonArray::Draw(TGraphDraw *drw, int x0, int y0, int w)

{

  const unsigned short power_gray = 49152U;

  unsigned long black = drw->GetBlackColor();

  unsigned long grey = drw->CreateColor(power_gray, power_gray, power_gray);

  Draw(drw, x0, y0, w, black, grey, black, 1);

  drw->FreeColor(grey);

}

void TXButtonArray::Draw(TGraphDraw *drw, int x0, int y0, int w,

        unsigned long dcolor, unsigned long lcolor, unsigned long tcolor, int insd)

{

  int i;

  int x = 0, y = 0, ym = 0;

  if (!insd && ins >= 0) k_ins = 2;

  for (i = 0; i < nbutton; i++) if (button[i] && button[i]->drw > 0)

  {

    int xx = x + button[i]->w + delt;

    if (x != 0 && xx > w + delt)

    {

      y += ym + delt; ym = 0;

      x = 0; xx = x + button[i]->w + delt;

    }

    button[i]->Draw(drw, x0 + x, y0 + y,

                    dcolor, lcolor, tcolor, k_ins == 1 && ins == i);

    x = xx;

    if (ym < button[i]->h) ym = button[i]->h;

  }

}

int TXButtonArray::ButtonPnt(int xp, int yp, int w, int &n, int kind)

{

  int i;

  int x = 0, y = 0, ym = 0;

  if (ins < 0 && (kind == 2 || kind == 3)) return INT_MIN;

  for (i = 0; i < nbutton; i++) if (button[i] && button[i]->drw > 0)

  {

    int xx = x + button[i]->w + delt;

    if (x != 0 && xx > w + delt)

    {

      y += ym + delt; ym = 0;

      x = 0; xx = x + button[i]->w + delt;

    }

    if (ins < 0 || i == ins)

    {

      int wh = button[i]->ButtonPnt(xp - x, yp - y, n, kind);

      if (n == -1) n = i;

      if (i == ins)

      {

        if (kind == 1) return wh;

        else if (kind == 2)

        {

          if (wh == INT_MIN || n < 0)

          {

            if (k_ins != 2) {k_ins = 2; n = -10; return 1000;}

          }

          else if (k_ins != 1) {k_ins = 1; return 1000;}

          return wh;

        }

        else if (kind == 3)

        {

          if (wh == INT_MIN)

          {

            n = -10;

            if (k_ins == 1) wh = 1000;

          }

          k_ins = 0; ins = -1;

          return wh;

        }

        else return wh;

      }

      else if (wh != INT_MIN)

      {

        if (kind == 1) {ins = i; k_ins = 1; return wh;}

        else if (kind == 2 || kind == 3) return INT_MIN;

        else return wh;

      }

    }

    x = xx;

    if (ym < button[i]->h) ym = button[i]->h;

  }

  n = -10;

  return INT_MIN;

}

struct TMultiButton : public TXButton

{

  TMultiButton(int n = -1, int w = 100, int h = 20, int d = 2)

                         : TXButton(n, w, h), a(d) {}

  virtual void Draw(TGraphDraw *drw, int x0, int y0, unsigned long dcolor,

                    unsigned long lcolor, unsigned long tcolor, int ins = 0);

  virtual int ButtonPnt(int xp, int yp, int &n, int kind = 0);

  void SetDefW();

  TXButtonArray a;

};

void TMultiButton::Draw(TGraphDraw *drw, int x0, int y0, unsigned long dcolor,

                        unsigned long lcolor, unsigned long tcolor, int ins)

{

  a.Draw(drw, x0, y0, w, dcolor, lcolor, tcolor, ins);

}

int TMultiButton::ButtonPnt(int xp, int yp, int &n, int kind)

{

  if (a.GetInsert() < 0 && (xp < 0 || yp < 0 || xp > w || yp > h)) return INT_MIN;

  return a.ButtonPnt(xp, yp, w, n, kind);

}

void TMultiButton::SetDefW()

{

  w = a.GetFWidth();

  if (w < 0) w = 0;

  h = a.GetHeight(w);

}

#endif  //_HEADER_BUTTONS_H