#include "Tools.h"

/***********************************************/
/* Fonction for TextField                      */
/***********************************************/

void
InitTextField (struct XObj *xobj)
{
  unsigned long mask;
  XSetWindowAttributes Attr;
  int i;
  int asc, desc, dir;
  XCharStruct struc;

  /* Enregistrement des couleurs et de la police */
  MyAllocNamedColor ( xobj->forecolor, &xobj->TabColor[fore]);
  MyAllocNamedColor ( xobj->backcolor, &xobj->TabColor[back]);
  MyAllocNamedColor ( xobj->licolor, &xobj->TabColor[li]);
  MyAllocNamedColor ( xobj->shadcolor, &xobj->TabColor[shad]);
  MyAllocNamedColor ( "#000000", &xobj->TabColor[black]);
  MyAllocNamedColor ( "#FFFFFF", &xobj->TabColor[white]);

  mask = 0;
  Attr.cursor = XCreateFontCursor (xobj->display, XC_xterm);
  mask |= CWCursor;		/* Curseur pour la fenetre */
  Attr.background_pixel = xobj->TabColor[back].pixel;
  mask |= CWBackPixel;

  xobj->win = XCreateWindow (xobj->display, *xobj->ParentWin,
			     xobj->x, xobj->y, xobj->width, xobj->height, 0,
			     CopyFromParent, InputOutput, CopyFromParent,
			     mask, &Attr);
  xobj->gc = XCreateGC (xobj->display, xobj->win, 0, NULL);
  XSetForeground (xobj->display, xobj->gc, xobj->TabColor[fore].pixel);
  XSetBackground (xobj->display, xobj->gc, xobj->TabColor[back].pixel);
  if (!load_font (xobj->font, &xobj->xfont))
    fprintf (stderr, "Can't load font %s\n", xobj->font);
  else
    XSetFont (xobj->display, xobj->gc, xobj->xfont.font->fid);

  XSetLineAttributes (xobj->display, xobj->gc, 1, LineSolid, CapRound, JoinMiter);
  /* value2 représente la fin de la zone selectionnee */
  if (xobj->value > strlen (xobj->title))
    xobj->value = strlen (xobj->title);
  xobj->value2 = xobj->value;

  /* Redimensionnement du widget */
  XTextExtents (xobj->xfont.font, "lp", strlen ("lp"), &dir, &asc, &desc, &struc);
  xobj->height = asc + desc + 10;
  i = XTextWidth (xobj->xfont.font, xobj->title, strlen (xobj->title)) + 40;
  if (xobj->width < i)
    xobj->width = i;
  XResizeWindow (xobj->display, xobj->win, xobj->width, xobj->height);

}

void
DestroyTextField (struct XObj *xobj)
{
  unload_font (&xobj->xfont);
  XFreeGC (xobj->display, xobj->gc);
  XDestroyWindow (xobj->display, xobj->win);
}

/* Dessin du curseur du texte */
void
DrawPointTxt (struct XObj *xobj, unsigned int color)
{
#define dec 2
  int x, y;
  XSegment segm[2];
  int asc, desc, dir;
  XCharStruct struc;

  XTextExtents (xobj->xfont.font, "lp", strlen ("lp"), &dir, &asc, &desc, &struc);
  x = XTextWidth (xobj->xfont.font, xobj->title, xobj->value) + 5;
  y = asc + 5;

  segm[0].x1 = x;
  segm[0].y1 = y;
  segm[0].x2 = x - dec;
  segm[0].y2 = y + dec;
  segm[1].x1 = x;
  segm[1].y1 = y;
  segm[1].x2 = x + dec;
  segm[1].y2 = y + dec;
  XSetForeground (xobj->display, xobj->gc, color);
  XDrawSegments (xobj->display, xobj->win, xobj->gc, segm, 2);
}

/* Dessin du contenu du champs texte */
void
DrawTextField (struct XObj *xobj)
{
  int x1, y1;
  int x2, l;
  int desc, dir, asc;
  XCharStruct struc;

  l = strlen (xobj->title);
  if (xobj->value > l)
    xobj->value = l;
  if (xobj->value2 > l)
    xobj->value2 = l;
  DrawReliefRect (0, 0, xobj->width, xobj->height, xobj,
		  xobj->TabColor[shad].pixel, xobj->TabColor[li].pixel, xobj->TabColor[black].pixel, 1);
  XSetForeground (xobj->display, xobj->gc, xobj->TabColor[back].pixel);
  XFillRectangle (xobj->display, xobj->win, xobj->gc, 3, 3, xobj->width - 6, xobj->height - 6);
  XSetForeground (xobj->display, xobj->gc, xobj->TabColor[fore].pixel);
  XTextExtents (xobj->xfont.font, "lp", strlen ("lp"), &dir, &y1, &desc, &struc);
#undef FONTSET
#define FONTSET xobj->xfont.fontset
  XDrawImageString (xobj->display, xobj->win, xobj->gc, 5, y1 + 5, xobj->title, strlen (xobj->title));

  /* Dessin de la zone selectionnee */
  XSetFunction (xobj->display, xobj->gc, GXinvert);
  if (xobj->value2 > xobj->value)
    {				/* Curseur avant la souris */
      x1 = XTextWidth (xobj->xfont.font, &xobj->title[0], xobj->value);
      x2 = XTextWidth (xobj->xfont.font, &xobj->title[xobj->value], xobj->value2 - xobj->value);
    }
  else
    {				/* Curseur apres la souris */
      x1 = XTextWidth (xobj->xfont.font, &xobj->title[0], xobj->value2);
      x2 = XTextWidth (xobj->xfont.font, &xobj->title[xobj->value2], xobj->value - xobj->value2);
    }
  XTextExtents (xobj->xfont.font, "lp", strlen ("lp"), &dir, &asc, &desc, &struc);
  XFillRectangle (xobj->display, xobj->win, xobj->gc, x1 + 5, 7, x2, y1 + desc - 2);
  XSetFunction (xobj->display, xobj->gc, GXcopy);

  /* Dessin du point d'insertion */
  DrawPointTxt (xobj, xobj->TabColor[fore].pixel);
}

void
EvtMouseTextField (struct XObj *xobj, XButtonEvent * EvtButton)
{
  unsigned int modif;
  int x1, x2, y1, y2, i;
  Window Win1, Win2;
  int PosCurs = 0;
  int SizeBuf;
  char *str;
  int NewPos;
  Atom type;
  XEvent event;
  int ButPress = 1;
  int format;
  unsigned long longueur, octets_restant;
  unsigned char *donnees = "";
  XRectangle rect;

  /* On deplace le curseur a la position de la souris */
  /* On recupere la position de la souris */
  switch (EvtButton->button)
    {
    case Button1:
      XQueryPointer (xobj->display, *xobj->ParentWin, &Win1, &Win2, &x1, &y1, &x2, &y2, &modif);
      x2 = x2 - xobj->x;
      PosCurs = 0;
      while ((PosCurs < strlen (xobj->title)) && (x2 > XTextWidth (xobj->xfont.font, xobj->title, PosCurs) + 8))
	PosCurs++;
      DrawPointTxt (xobj, xobj->TabColor[back].pixel);
      xobj->value = PosCurs;
      xobj->value2 = PosCurs;
      DrawPointTxt (xobj, xobj->TabColor[fore].pixel);
      DrawTextField (xobj);

      while (ButPress)
	{
	  XNextEvent (xobj->display, &event);
	  switch (event.type)
	    {
	    case MotionNotify:
	      XQueryPointer (xobj->display, *xobj->ParentWin, &Win1, &Win2, &x1, &y1, &x2, &y2, &modif);
	      x2 = x2 - xobj->x;
	      PosCurs = 0;
	      while ((PosCurs < strlen (xobj->title)) && (x2 > XTextWidth (xobj->xfont.font, xobj->title, PosCurs) + 8))
		PosCurs++;
	      /* Limitation de la zone de dessin */
	      if (PosCurs > xobj->value2)
		{
		  rect.x = XTextWidth (xobj->xfont.font, xobj->title, xobj->value2);
		  rect.y = 0;
		  rect.width = XTextWidth (xobj->xfont.font, xobj->title, PosCurs + 1) - rect.x + 1;
		  rect.height = xobj->height;
		  XSetClipRectangles (xobj->display, xobj->gc, 0, 0, &rect, 1, Unsorted);
		  xobj->value2 = PosCurs;
		  DrawTextField (xobj);
		  XSetClipMask (xobj->display, xobj->gc, None);
		}
	      else if (PosCurs < xobj->value2)
		{
		  rect.x = XTextWidth (xobj->xfont.font, xobj->title, PosCurs) - 1;
		  rect.y = 0;
		  rect.width = XTextWidth (xobj->xfont.font, xobj->title, xobj->value2 + 1) - rect.x + 2;
		  rect.height = xobj->height;
		  XSetClipRectangles (xobj->display, xobj->gc, 0, 0, &rect, 1, Unsorted);
		  xobj->value2 = PosCurs;
		  DrawTextField (xobj);
		  XSetClipMask (xobj->display, xobj->gc, None);
		}
	      break;
	    case ButtonRelease:
	      ButPress = 0;
	      break;
	    }
	}
      XSetClipMask (xobj->display, xobj->gc, None);
      /* Enregistrement de la selection dans le presse papier */
      /* Le programme devient proprietaire de la selection */
      if (xobj->value != xobj->value2)
	{
	  str = (char *) GetText (xobj, xobj->value2);
	  for (i = 0; i <= 7; i++)
	    XStoreBuffer (xobj->display, str, strlen (str), i);
	  Scrapt = (char *) realloc ((void *) Scrapt, (strlen (str) + 2) * sizeof (char));
	  Scrapt = strcpy (Scrapt, str);
	  free (str);
	  x11base->HaveXSelection = True;
	  XSetSelectionOwner (x11base->display, XA_PRIMARY, x11base->win, EvtButton->time);
	  SelectOneTextField (xobj);
	}
      break;

    case Button2:		/* Colle le texte */
      /* Si l'application possede pas la selection, elle la demande */
      /* sinon elle lit son presse papier */
      if (!x11base->HaveXSelection)
	{
	  /* Demande de la selection */
	  XConvertSelection (xobj->display, XA_PRIMARY, XA_STRING, propriete, *xobj->ParentWin,
			     EvtButton->time);
	  while (!(XCheckTypedEvent (xobj->display, SelectionNotify, &event)));
	  if (event.xselection.property != None)
	    if (event.xselection.selection == XA_PRIMARY)
	      {
		XGetWindowProperty (xobj->display, event.xselection.requestor, event.xselection.property, 0,
				    8192, False, event.xselection.target, &type, &format, &longueur, &octets_restant,
				    &donnees);
		if (longueur > 0)
		  {
		    Scrapt = (char *) realloc ((void *) Scrapt, (longueur + 1) * sizeof (char));
		    Scrapt = strcpy (Scrapt, donnees);
		    XDeleteProperty (xobj->display, event.xselection.requestor, event.xselection.property);
		    XFree (donnees);
		  }
	      }
	}
      SizeBuf = strlen (Scrapt);
      if (SizeBuf > 0)
	{
	  NewPos = InsertText (xobj, Scrapt, SizeBuf);
	  DrawPointTxt (xobj, xobj->TabColor[back].pixel);
	  xobj->value = NewPos;
	  xobj->value2 = NewPos;
	  DrawPointTxt (xobj, xobj->TabColor[fore].pixel);
	  DrawTextField (xobj);
	  SendMsg (xobj, SingleClic);
	}
      break;

    case Button3:		/* Appuie sur le troisieme bouton */
      XQueryPointer (xobj->display, *xobj->ParentWin, &Win1, &Win2, &x1, &y1, &x2, &y2, &modif);
      x2 = x2 - xobj->x;
      PosCurs = 0;
      while ((PosCurs < strlen (xobj->title)) &&
	     (x2 > XTextWidth (xobj->xfont.font, xobj->title, PosCurs) + 8))
	PosCurs++;
      if ((PosCurs < xobj->value) && (xobj->value < xobj->value2))
	xobj->value = xobj->value2;
      if ((PosCurs > xobj->value) && (xobj->value > xobj->value2))
	xobj->value = xobj->value2;
      xobj->value2 = PosCurs;
      DrawTextField (xobj);

      while (ButPress)
	{
	  XNextEvent (xobj->display, &event);
	  switch (event.type)
	    {
	    case MotionNotify:
	      XQueryPointer (xobj->display, *xobj->ParentWin, &Win1, &Win2, &x1, &y1, &x2, &y2, &modif);
	      x2 = x2 - xobj->x;
	      while ((PosCurs < strlen (xobj->title)) && (x2 > XTextWidth (xobj->xfont.font, xobj->title, PosCurs) + 8))
		PosCurs++;
	      if (PosCurs > xobj->value2)
		{
		  rect.x = XTextWidth (xobj->xfont.font, xobj->title, xobj->value2);
		  rect.y = 0;
		  rect.width = XTextWidth (xobj->xfont.font, xobj->title, PosCurs + 1) - rect.x + 1;
		  rect.height = xobj->height;
		  XSetClipRectangles (xobj->display, xobj->gc, 0, 0, &rect, 1, Unsorted);
		  xobj->value2 = PosCurs;
		  DrawTextField (xobj);
		  XSetClipMask (xobj->display, xobj->gc, None);
		}
	      else if (PosCurs < xobj->value2)
		{
		  rect.x = XTextWidth (xobj->xfont.font, xobj->title, PosCurs) - 1;
		  rect.y = 0;
		  rect.width = XTextWidth (xobj->xfont.font, xobj->title, xobj->value2 + 1) - rect.x + 2;
		  rect.height = xobj->height;
		  XSetClipRectangles (xobj->display, xobj->gc, 0, 0, &rect, 1, Unsorted);
		  xobj->value2 = PosCurs;
		  DrawTextField (xobj);
		  XSetClipMask (xobj->display, xobj->gc, None);
		}
	      PosCurs = 0;
	      break;
	    case ButtonRelease:
	      ButPress = 0;
	      break;
	    }
	}
      if (xobj->value != xobj->value2)
	{
	  str = (char *) GetText (xobj, xobj->value2);
	  for (i = 0; i <= 7; i++)
	    XStoreBuffer (xobj->display, str, strlen (str), i);
	  Scrapt = (char *) realloc ((void *) Scrapt, (strlen (str) + 2) * sizeof (char));
	  Scrapt = strcpy (Scrapt, str);
	  free (str);
	  x11base->HaveXSelection = True;
	  XSetSelectionOwner (x11base->display, XA_PRIMARY, x11base->win, EvtButton->time);
	}
      break;
    }
}

void
EvtKeyTextField (struct XObj *xobj, XKeyEvent * EvtKey)
{
  int i, x2;
  char car[11];
  char *carks2;
  char *carks = NULL;
  KeySym ks;
  int Size;
  int NewPos;

  /* Recherche du charactere */
  i = XLookupString (EvtKey, car, 10, &ks, NULL);
  NewPos = xobj->value;
  car[i] = '\0';
  carks2 = XKeysymToString (ks);

  if (carks2 != NULL)
    {
      carks = (char *) calloc (sizeof (char), 30);
      sprintf (carks, "%s", carks2);
      if (strcmp (carks, "Right") == 0)
	{
	  NewPos++;
	  if (NewPos > strlen (xobj->title))
	    NewPos = strlen (xobj->title);
	}
      else if (strcmp (carks, "Left") == 0)
	{
	  NewPos--;
	  if (NewPos < 0)
	    NewPos = 0;
	}
      else if (strcmp (carks, "Return") == 0)
	{
	  ;
	}
      else if ((strcmp (carks, "Delete") == 0) || (strcmp (carks, "BackSpace") == 0))
	{
	  if (NewPos > 0)
	    {
	      Size = strlen (xobj->title);
	      memmove (&xobj->title[NewPos - 1], &xobj->title[NewPos],
		       Size - NewPos + 1);
	      xobj->title = (char *) realloc (xobj->title, (Size) * sizeof (char));
	      NewPos--;
	      SendMsg (xobj, SingleClic);
	    }
	}
      else if (i != 0)
	{			/* Cas d'un caractere normal */
	  /* Insertion du caractere dans le titre */
	  Size = strlen (xobj->title);
	  xobj->title = (char *) realloc (xobj->title, (2 + Size) * sizeof (char));
	  memmove (&xobj->title[NewPos + 1], &xobj->title[NewPos],
		   Size - NewPos + 1);
	  xobj->title[NewPos] = car[0];
	  NewPos++;
	  SendMsg (xobj, SingleClic);
	}
    }
  if ((xobj->value != NewPos) || (xobj->value2 != NewPos))
    {
      XSetForeground (xobj->display, xobj->gc, xobj->TabColor[back].pixel);
      x2 = XTextWidth (xobj->xfont.font, xobj->title, strlen (xobj->title));
      XFillRectangle (xobj->display, xobj->win, xobj->gc, x2 + 4, 4, xobj->width - x2 - 8, xobj->height - 8);
      xobj->value = NewPos;
      xobj->value2 = NewPos;
      DrawPointTxt (xobj, xobj->TabColor[fore].pixel);
      DrawTextField (xobj);
    }
  free (carks);
}

void
ProcessMsgTextField (struct XObj *xobj, unsigned long type, unsigned long *body)
{
}
