#include "xlib.h"
#include "scheme48.h"

s48_value scx_Iconify_Window (s48_value Xdisplay, s48_value w, s48_value scr) {
  if (!XIconifyWindow (SCX_EXTRACT_DISPLAY(Xdisplay),
		       SCX_EXTRACT_WINDOW(w),
		       s48_extract_integer(scr)))
    return S48_FALSE;
  else
    return S48_UNSPECIFIC;
}

s48_value scx_Withdraw_Window (s48_value Xdisplay, s48_value w, s48_value scr) {
  if (!XWithdrawWindow (SCX_EXTRACT_DISPLAY(Xdisplay),
			SCX_EXTRACT_WINDOW(w),
			s48_extract_integer(scr)))
    return S48_FALSE;
  else
    return S48_UNSPECIFIC;
}

s48_value scx_Reconfigure_Wm_Window (s48_value dpy, s48_value w, s48_value scr,
				     s48_value conf) {
  XWindowChanges WC;
  unsigned long mask = AList_To_XWindowChanges(conf, &WC);

  if (!XReconfigureWMWindow (SCX_EXTRACT_DISPLAY(dpy),
			     SCX_EXTRACT_WINDOW(w),
			     s48_extract_integer(scr),
			     mask, &WC))
    return S48_FALSE;
  else
    return S48_UNSPECIFIC;
}

s48_value scx_Wm_Command (s48_value dpy, s48_value w) {
    int i, ac;
    char** av;
    s48_value ret;
    S48_DECLARE_GC_PROTECT(1);

    // Disable_Interrupts;
    if (!XGetCommand (SCX_EXTRACT_DISPLAY(dpy), 
		      SCX_EXTRACT_WINDOW(w),
		      &av, &ac))
	ac = 0;
    // Enable_Interrupts;
    ret = s48_make_vector(ac, S48_FALSE);
    S48_GC_PROTECT_1 (ret);
    for (i = 0; i < ac; i++) {
      S48_VECTOR_SET(ret, i, s48_enter_string(av[i]));
    }
    S48_GC_UNPROTECT();
    if (ac) XFreeStringList (av);
    return ret;
}

int String_Vector_To_Text_Property (s48_value x, XTextProperty* ret) {
  s48_value t = S48_FALSE;
  int i, n = S48_VECTOR_LENGTH(x);
  char* s[n];

  for (i = 0; i < n; i++) {
    t = S48_VECTOR_REF(x, i);
    s[i] = S48_SYMBOL_P(t) ? s48_extract_symbol(t) : s48_extract_string(t);
  }

  return XStringListToTextProperty (s, n, ret);
  //	Primitive_Error ("cannot create text property");
}

s48_value Text_Property_To_String_Vector (XTextProperty *p) {
  int n, i;
  char **s;
  s48_value ret;
  S48_DECLARE_GC_PROTECT(2);

  if (!XTextPropertyToStringList (p, &s, &n))
    return S48_FALSE;
  //	Primitive_Error ("cannot convert from text property");
  
  ret = s48_make_vector(n, S48_FALSE);
  S48_GC_PROTECT_1 (ret);
  for (i = 0; i < n; i++) {
    S48_VECTOR_SET(ret, i, s48_enter_string(s[i]));
  }
  S48_GC_UNPROTECT();
  
  XFreeStringList (s);
  return ret;
}

s48_value scx_Get_Text_Property (s48_value dpy, s48_value w, s48_value a) {
  XTextProperty ret;
  
  // Disable_Interrupts;
  if (!XGetTextProperty (SCX_EXTRACT_DISPLAY(dpy),
			 SCX_EXTRACT_WINDOW(w), 
			 &ret,
			 SCX_EXTRACT_ATOM(a))) {
    //Enable_Interrupts;
    return S48_TRUE; // little hack to distinguish between this error and a
                     // possible Text_Pr._To_S._L. error
  }
  //Enable_Interrupts;
  return Text_Property_To_String_Vector (&ret);
}

s48_value scx_Set_Text_Property (s48_value dpy, s48_value w, s48_value prop, 
				 s48_value a) {
  XTextProperty p;
  
  if (!String_Vector_To_Text_Property (prop, &p))
    return S48_FALSE;
  
  XSetTextProperty (SCX_EXTRACT_DISPLAY(dpy),
		    SCX_EXTRACT_WINDOW(w), 
		    &p, SCX_EXTRACT_ATOM(a));
  XFree ((char *)p.value);
  return S48_UNSPECIFIC;
}

s48_value scx_Wm_Protocols (s48_value Xdisplay, s48_value w) {
  Atom *p;
  int i, n;
  s48_value ret;
  S48_DECLARE_GC_PROTECT(1);

  //Disable_Interrupts;
  if (!XGetWMProtocols (SCX_EXTRACT_DISPLAY(Xdisplay),
			SCX_EXTRACT_WINDOW(w), &p, &n))
    return S48_FALSE;
  //Enable_Interrupts;

  ret = s48_make_vector (n, S48_NULL);
  S48_GC_PROTECT_1 (ret);
  for (i = 0; i < n; i++) {
    S48_VECTOR_SET(ret, i, SCX_ENTER_ATOM(p[i]));
  }
  XFree ((char *)p);
  S48_GC_UNPROTECT();
  return ret;
}

s48_value scx_Set_Wm_Protocols (s48_value Xdisplay, s48_value w, s48_value v) {
  int i, n = S48_VECTOR_LENGTH(v);
  Atom p[n];
  
  for (i = 0; i < n; i++)
    p[i] = SCX_EXTRACT_ATOM(S48_VECTOR_REF(v, i));
  
  if (!XSetWMProtocols (SCX_EXTRACT_DISPLAY(Xdisplay),
			SCX_EXTRACT_WINDOW(w),
			p, n))
    return S48_FALSE;
  else
    return S48_UNSPECIFIC;
}

s48_value scx_Wm_Class (s48_value Xdisplay, s48_value w) {
  s48_value ret, x;
  XClassHint c;
  S48_DECLARE_GC_PROTECT(1);

  // Elk says:
  // > In X11.2 XGetClassHint() returns either 0 or Success, which happens
  // > to be defined as 0.  So until this bug is fixed, we must
  // > explicitly check whether the XClassHint structure has been filled.
  // but on the other hand, it doesn't even support X11.3, so I think
  // <this> is fixed!

  c.res_name = c.res_class = 0;
  // Disable_Interrupts;
  if (!XGetClassHint (SCX_EXTRACT_DISPLAY(Xdisplay), 
		      SCX_EXTRACT_WINDOW(w), &c)) {
    // Enable_Interrupts;
    return S48_FALSE;
  }
  // Enable_Interrupts;

  ret = s48_cons (S48_FALSE, S48_FALSE);
  S48_GC_PROTECT_1 (ret);
  if (c.res_name) {
    S48_SET_CAR(ret, s48_enter_string(c.res_name));
    XFree (c.res_name);
  }
  if (c.res_class) {
    S48_SET_CDR(ret, s48_enter_string(c.res_class));
    XFree (c.res_class);
  }
  S48_GC_UNPROTECT();
  return ret;
}

s48_value scx_Set_Wm_Class (s48_value dpy, s48_value w, s48_value name, 
			    s48_value class) {
  XClassHint c;
  c.res_name = s48_extract_string(name);
  c.res_class = s48_extract_string(class);
  XSetClassHint (SCX_EXTRACT_DISPLAY(dpy),
		 SCX_EXTRACT_WINDOW(dpy),
		 &c);
  return S48_UNSPECIFIC;
}

s48_value scx_Set_Wm_Command (s48_value dpy, s48_value w, s48_value cmd) {
  int i, n = S48_VECTOR_LENGTH(cmd);
  char *argv[n];
  for (i = 0; i < n; i++)
    argv[i] = s48_extract_string(S48_VECTOR_REF(cmd, i));

  XSetCommand (SCX_EXTRACT_DISPLAY(dpy), 
	       SCX_EXTRACT_WINDOW(w), 
	       argv, n);
  return S48_UNSPECIFIC;
}

s48_value scx_Wm_Hints (s48_value dpy, s48_value w) {
  XWMHints* p = (XWMHints*)0;
  s48_value res;
  S48_DECLARE_GC_PROTECT(1);

  //Disable_Interrupts;
  p = XGetWMHints (SCX_EXTRACT_DISPLAY(dpy), 
		   SCX_EXTRACT_WINDOW(w));
  //Enable_Interrupts;
  res = s48_make_vector(9, S48_NULL);
  if (p) {
    S48_GC_PROTECT_1(res);
    
    if (p->flags && InputHint)
      S48_VECTOR_SET(res, 0, S48_ENTER_BOOLEAN(p->input));
    if (p->flags && StateHint)
      S48_VECTOR_SET(res, 1, Bit_To_Symbol((unsigned long)p->initial_state, 
					   Initial_State_Syms));
    if (p->flags && IconPixmapHint)
      S48_VECTOR_SET(res, 2, SCX_ENTER_PIXMAP(p->icon_pixmap));
    if (p->flags && IconWindowHint)
      S48_VECTOR_SET(res, 3, SCX_ENTER_WINDOW(p->icon_window));
    if (p->flags && IconPositionHint) {
      S48_VECTOR_SET(res, 4, s48_enter_integer(p->icon_x));
      S48_VECTOR_SET(res, 5, s48_enter_integer(p->icon_y));
    }
    if (p->flags && IconMaskHint)
      S48_VECTOR_SET(res, 6, SCX_ENTER_PIXMAP(p->icon_mask));
    if (p->flags && WindowGroupHint)
      // Elk says a window-group is a window...??
      S48_VECTOR_SET(res, 7, SCX_ENTER_WINDOW(p->window_group));
    S48_VECTOR_SET(res, 8, S48_ENTER_BOOLEAN(p->flags && XUrgencyHint));
    // XLib man-pages say this constant is called UrgencyHint !!
    
    S48_GC_UNPROTECT();
  }

  XFree((char*)p);
  
  return res;
}

s48_value scx_Set_Wm_Hints (s48_value dpy, s48_value w, s48_value alist) {
  unsigned long mask = 0;
  s48_value l, p, v;
  XWMHints WMH;
  char* cname;

  for (l = alist; !S48_NULL_P(l); l = S48_CDR(l)) {
    p = S48_CAR(l);
    v = S48_CDR(p);
    cname = s48_extract_symbol(S48_CAR(p));
    if (strcmp(cname, "input?") == 0) {
      mask |= InputHint;
      WMH.input = !S48_FALSE_P(v);
    } else if (strcmp(cname, "initial-state") == 0) {
      mask |= StateHint;
      WMH.initial_state = Symbol_To_Bit((unsigned long)s48_extract_integer(v),
					Initial_State_Syms);
    } else if (strcmp(cname, "icon-pixmap") == 0) {
      mask |= IconPixmapHint;
      WMH.icon_pixmap = SCX_EXTRACT_PIXMAP(v);
    } else if (strcmp(cname, "icon-window") == 0) {
      mask |= IconWindowHint;
      WMH.icon_window = SCX_EXTRACT_WINDOW(v);
    } else if (strcmp(cname, "icon-x") == 0) {
      mask |= IconPositionHint;
      WMH.icon_x = (int)s48_extract_integer(v);
    } else if (strcmp(cname, "icon-y") == 0) {
      mask |= IconPositionHint;
      WMH.icon_y = (int)s48_extract_integer(v);
    } else if (strcmp(cname, "icon-mask") == 0) {
      mask |= IconMaskHint;
      WMH.icon_mask = SCX_EXTRACT_PIXMAP(v);
    } else if (strcmp(cname, "window-group") == 0) {
      mask |= WindowGroupHint;
      WMH.window_group = SCX_EXTRACT_WINDOW(v);
    } else if (strcmp(cname, "urgency") == 0) {
      mask |= XUrgencyHint;
      // XLib man-pages say this constant is called UrgencyHint !!
    }
  }
 
  XSetWMHints(SCX_EXTRACT_DISPLAY(dpy),
	      SCX_EXTRACT_WINDOW(w),
	      &WMH);
  return S48_UNSPECIFIC;
}

s48_value scx_Icon_Sizes (s48_value dpy, s48_value w) {
  XIconSize *p;
  int i, n;
  s48_value v;
  S48_DECLARE_GC_PROTECT(1);
    
  //Disable_Interrupts;
  if (!XGetIconSizes (SCX_EXTRACT_DISPLAY(dpy), 
		      SCX_EXTRACT_WINDOW(w), 
		      &p, &n))
    n = 0;
  //Enable_Interrupts;
    
  v = s48_make_vector (n, S48_NULL);
  S48_GC_PROTECT_1 (v);
  for (i = 0; i < n; i++) {
    XIconSize* q = &p[i];
    s48_value t = s48_make_vector(6, S48_NULL);
    S48_VECTOR_SET(v, i, t);

    S48_VECTOR_SET(t, 0, s48_enter_integer (q->min_width));
    S48_VECTOR_SET(t, 1, s48_enter_integer (q->min_height));
    S48_VECTOR_SET(t, 2, s48_enter_integer (q->max_width));
    S48_VECTOR_SET(t, 3, s48_enter_integer (q->max_height));
    S48_VECTOR_SET(t, 4, s48_enter_integer (q->width_inc));
    S48_VECTOR_SET(t, 5, s48_enter_integer (q->height_inc));
  }
  S48_GC_UNPROTECT();
  if (n > 0)
    XFree ((char *)p);
  return v;
}

s48_value scx_Set_Icon_Sizes (s48_value dpy, s48_value w, s48_value v) {
  int i, n = S48_VECTOR_LENGTH(v);
  XIconSize p[n];

  for (i = 0; i < n; i++) {
    XIconSize *q = &p[i];
    s48_value t = S48_VECTOR_REF(v, i);

    q->min_width  = (int)s48_extract_integer(S48_VECTOR_REF(t, 0));
    q->min_height = (int)s48_extract_integer(S48_VECTOR_REF(t, 1));
    q->max_width  = (int)s48_extract_integer(S48_VECTOR_REF(t, 2));
    q->max_height = (int)s48_extract_integer(S48_VECTOR_REF(t, 3));
    q->width_inc  = (int)s48_extract_integer(S48_VECTOR_REF(t, 4));
    q->height_inc = (int)s48_extract_integer(S48_VECTOR_REF(t, 5));
  }
   
  XSetIconSizes (SCX_EXTRACT_DISPLAY(dpy), 
		 SCX_EXTRACT_WINDOW(w), 
		 p, n);

  return S48_UNSPECIFIC;
}

s48_value scx_Transient_For(s48_value dpy, s48_value w) {
  Window win;
  
  //Disable_Interrupts;
  if (!XGetTransientForHint(SCX_EXTRACT_DISPLAY(dpy), 
			    SCX_EXTRACT_WINDOW(w), 
			    &win))
    win = None;
  //Enable_Interrupts;
  return SCX_ENTER_WINDOW(win);
}

s48_value scx_Set_Transient_For(s48_value dpy, s48_value w, s48_value pw) {
  XSetTransientForHint (SCX_EXTRACT_DISPLAY(dpy), 
			SCX_EXTRACT_WINDOW(w), 
			SCX_EXTRACT_WINDOW(pw));
  return S48_UNSPECIFIC;
}

s48_value scx_Wm_Normal_Hints(s48_value dpy, s48_value win) {
  XSizeHints SH;
  long supplied;
  s48_value v;
  S48_DECLARE_GC_PROTECT(1);

  if (!XGetWMNormalHints(SCX_EXTRACT_DISPLAY(dpy),
			 SCX_EXTRACT_WINDOW(win),
			 &SH, &supplied))
    SH.flags = 0;
  
  v = s48_make_vector(19, S48_NULL);
  S48_GC_PROTECT_1(v);

  if ((SH.flags & PPosition) == PPosition) {
    S48_VECTOR_SET(v, 0, s48_enter_integer(SH.x));
    S48_VECTOR_SET(v, 1, s48_enter_integer(SH.y));
  }
  if ((SH.flags & PSize) == PSize) {
    S48_VECTOR_SET(v, 2, s48_enter_integer(SH.width));
    S48_VECTOR_SET(v, 3, s48_enter_integer(SH.height));
  }
  if ((SH.flags & USPosition) == USPosition) {
    S48_VECTOR_SET(v, 0, s48_enter_integer(SH.x));
    S48_VECTOR_SET(v, 1, s48_enter_integer(SH.y));
    S48_VECTOR_SET(v, 4, S48_TRUE); // us-position -> #t
  }
  if ((SH.flags & USSize) == USSize) {
    S48_VECTOR_SET(v, 2, s48_enter_integer(SH.width));
    S48_VECTOR_SET(v, 3, s48_enter_integer(SH.height));
    S48_VECTOR_SET(v, 5, S48_TRUE); // us-size -> #t
  }
  if ((SH.flags & PMinSize) == PMinSize) {
    S48_VECTOR_SET(v, 6, s48_enter_integer(SH.min_width));
    S48_VECTOR_SET(v, 7, s48_enter_integer(SH.min_height));
  }
  if ((SH.flags & PMaxSize) == PMaxSize) {
    S48_VECTOR_SET(v, 8, s48_enter_integer(SH.max_width));
    S48_VECTOR_SET(v, 9, s48_enter_integer(SH.max_height));
  }
  if ((SH.flags & PResizeInc) == PResizeInc) {
    S48_VECTOR_SET(v, 10, s48_enter_integer(SH.width_inc));
    S48_VECTOR_SET(v, 11, s48_enter_integer(SH.height_inc));
  }
  if ((SH.flags & PAspect) == PAspect) {
    S48_VECTOR_SET(v, 12, s48_enter_integer(SH.min_aspect.x));
    S48_VECTOR_SET(v, 13, s48_enter_integer(SH.min_aspect.y));
    S48_VECTOR_SET(v, 14, s48_enter_integer(SH.max_aspect.x));
    S48_VECTOR_SET(v, 15, s48_enter_integer(SH.max_aspect.y));
  }
  if ((SH.flags & PBaseSize) == PBaseSize) {
    S48_VECTOR_SET(v, 16, s48_enter_integer(SH.base_width));
    S48_VECTOR_SET(v, 17, s48_enter_integer(SH.base_height));
  }
  if ((SH.flags & PWinGravity) == PWinGravity) {
    S48_VECTOR_SET(v, 18, Bit_To_Symbol(SH.win_gravity, Grav_Syms));
  }

  S48_GC_UNPROTECT();
  return v;
}

s48_value scx_Set_Wm_Normal_Hints(s48_value dpy, s48_value win, 
				  s48_value alist) {
  XSizeHints SH;
  long mask = 0;
  s48_value l;
  for (l = alist; !S48_NULL_P(l); l = S48_CDR(l)) {
    s48_value p = S48_CAR(l);
    char* name = s48_extract_string(S48_CAR(p));
    s48_value v = S48_CDR(p);
    
    if (strcmp(name, "x") == 0) {
      mask |= PPosition; SH.x = s48_extract_integer(v);
    }
    if (strcmp(name, "y") == 0) {
      mask |= PPosition; SH.y = s48_extract_integer(v);
    }
    if (strcmp(name, "width") == 0) {
      mask |= PSize; SH.width = s48_extract_integer(v);
    }
    if (strcmp(name, "height") == 0) {
      mask |= PSize; SH.height = s48_extract_integer(v);
    }    
    if (strcmp(name, "min-width") == 0) {
      mask |= PMinSize; SH.min_width = s48_extract_integer(v);
    }  
    if (strcmp(name, "min-height") == 0) {
      mask |= PMinSize; SH.min_height = s48_extract_integer(v);
    }
    if (strcmp(name, "max-width") == 0) {
      mask |= PMaxSize; SH.max_width = s48_extract_integer(v);
    }
    if (strcmp(name, "max-height") == 0) {
      mask |= PMaxSize; SH.max_height = s48_extract_integer(v);
    }
    if (strcmp(name, "width-inc") == 0) {
      mask |= PResizeInc; SH.width_inc = s48_extract_integer(v);
    }
    if (strcmp(name, "height-inc") == 0) {
      mask |= PResizeInc; SH.height_inc = s48_extract_integer(v);
    }
    if (strcmp(name, "min-aspect-x") == 0) {
      mask |= PAspect; SH.min_aspect.x = s48_extract_integer(v);
    }
    if (strcmp(name, "min-aspect-y") == 0) {
      mask |= PAspect; SH.min_aspect.y = s48_extract_integer(v);
    }
    if (strcmp(name, "max-aspect-x") == 0) {
      mask |= PAspect; SH.max_aspect.x = s48_extract_integer(v);
    }
    if (strcmp(name, "max-aspect-y") == 0) {
      mask |= PAspect; SH.max_aspect.y = s48_extract_integer(v);
    }
    if (strcmp(name, "base-width") == 0) {
      mask |= PBaseSize; SH.base_width = s48_extract_integer(v);
    }
    if (strcmp(name, "base-height") == 0) {
      mask |= PBaseSize; SH.base_height = s48_extract_integer(v);
    }
    if (strcmp(name, "gravity") == 0) {
      mask |= PWinGravity; SH.win_gravity = Symbol_To_Bit(v, Grav_Syms);
    }
  }
  SH.flags = mask;
  
  XSetWMNormalHints(SCX_EXTRACT_DISPLAY(dpy),
		    SCX_EXTRACT_WINDOW(win),
		    &SH);

  return S48_UNSPECIFIC;
}

scx_init_client() {
  S48_EXPORT_FUNCTION(scx_Iconify_Window);
  S48_EXPORT_FUNCTION(scx_Withdraw_Window);
  S48_EXPORT_FUNCTION(scx_Reconfigure_Wm_Window);
  S48_EXPORT_FUNCTION(scx_Wm_Command);
  S48_EXPORT_FUNCTION(scx_Get_Text_Property);
  S48_EXPORT_FUNCTION(scx_Set_Text_Property);
  S48_EXPORT_FUNCTION(scx_Wm_Protocols);
  S48_EXPORT_FUNCTION(scx_Set_Wm_Protocols);
  S48_EXPORT_FUNCTION(scx_Wm_Class);
  S48_EXPORT_FUNCTION(scx_Set_Wm_Class);
  S48_EXPORT_FUNCTION(scx_Set_Wm_Command);
  S48_EXPORT_FUNCTION(scx_Wm_Hints);
  S48_EXPORT_FUNCTION(scx_Set_Wm_Hints);
  S48_EXPORT_FUNCTION(scx_Icon_Sizes);
  S48_EXPORT_FUNCTION(scx_Set_Icon_Sizes);
  S48_EXPORT_FUNCTION(scx_Transient_For);
  S48_EXPORT_FUNCTION(scx_Set_Transient_For);
  S48_EXPORT_FUNCTION(scx_Wm_Normal_Hints);
  S48_EXPORT_FUNCTION(scx_Set_Wm_Normal_Hints);
}