From d6b088044e161a27d49df537bbb6d998a8d0e50d Mon Sep 17 00:00:00 2001
From: musil <tmusil@users.sourceforge.net>
Date: Sat, 9 Dec 2006 02:00:52 +0000
Subject: // class_sethelpsymbol(); changed help-*.pd to *-help.pd chanded file
 structure to standard 1st step remove old

svn path=/trunk/externals/iemlib/; revision=6756
---
 iemlib2/src/dollarg.c | 105 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 iemlib2/src/dollarg.c

(limited to 'iemlib2/src/dollarg.c')

diff --git a/iemlib2/src/dollarg.c b/iemlib2/src/dollarg.c
new file mode 100644
index 0000000..102a680
--- /dev/null
+++ b/iemlib2/src/dollarg.c
@@ -0,0 +1,105 @@
+/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
+
+iemlib2 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2006 */
+
+#include "m_pd.h"
+#include "g_canvas.h"
+#include "iemlib.h"
+
+
+/* ------------------------- dollarg ---------------------------- */
+/* --- dollar-arguments, output the initial-arguments and the --- */
+/* ------- number of them of the parent abstraction-patch ------- */
+
+static t_class *dollarg_class;
+
+typedef struct _dollarg
+{
+  t_object  x_obj;
+  void      *x_outlet_ac;
+  t_atom    *x_at;
+  int       x_ac;
+} t_dollarg;
+
+static void dollarg_float(t_dollarg *x, t_floatarg f)
+{
+  int i = (int)f;
+  
+  if(!i)
+  {
+    outlet_float(x->x_outlet_ac, x->x_ac);
+    if(x->x_ac)
+      outlet_list(x->x_obj.ob_outlet, &s_list, x->x_ac, x->x_at);
+  }
+  else if(i > 0)
+  {
+    if(i <= x->x_ac)
+    {
+      outlet_float(x->x_outlet_ac, i);
+      if(IS_A_FLOAT(x->x_at, i-1))
+        outlet_float(x->x_obj.ob_outlet, atom_getfloatarg(i-1, x->x_ac, x->x_at));
+      else if(IS_A_SYMBOL(x->x_at, i-1))
+        outlet_symbol(x->x_obj.ob_outlet, atom_getsymbolarg(i-1, x->x_ac, x->x_at));
+    }
+    else
+      outlet_float(x->x_outlet_ac, 0);
+  }
+  else
+  {
+    int j = x->x_ac + i;
+    
+    if(j >= 0)
+    {
+      outlet_float(x->x_outlet_ac, j+1);
+      if(IS_A_FLOAT(x->x_at, j))
+        outlet_float(x->x_obj.ob_outlet, atom_getfloatarg(j, x->x_ac, x->x_at));
+      else if(IS_A_SYMBOL(x->x_at, j))
+        outlet_symbol(x->x_obj.ob_outlet, atom_getsymbolarg(j, x->x_ac, x->x_at));
+    }
+    else
+      outlet_float(x->x_outlet_ac, 0);
+  }
+}
+
+static void dollarg_bang(t_dollarg *x)
+{
+  dollarg_float(x, 0.0f);
+}
+
+static void dollarg_free(t_dollarg *x)
+{
+  if(x->x_ac)
+    freebytes(x->x_at, x->x_ac * sizeof(t_atom));
+}
+
+static void *dollarg_new(void)
+{
+  t_dollarg *x = (t_dollarg *)pd_new(dollarg_class);
+  t_glist *glist=(t_glist *)canvas_getcurrent();
+  t_canvas *canvas=glist_getcanvas(glist);
+  int pargc;
+  t_atom *pargv, *at;
+  
+  canvas_setcurrent(canvas);
+  canvas_getargs(&pargc, &pargv);
+  canvas_unsetcurrent(canvas);
+  x->x_at = (t_atom *)getbytes(pargc*sizeof(t_atom));
+  x->x_ac = pargc;
+  at = x->x_at;
+  while(pargc--)
+    *at++ = *pargv++;
+  outlet_new(&x->x_obj, &s_list);
+  x->x_outlet_ac = outlet_new(&x->x_obj, &s_float);
+  return (x);
+}
+
+void dollarg_setup(void)
+{
+  dollarg_class = class_new(gensym("dollarg"), (t_newmethod)dollarg_new,
+    (t_method)dollarg_free, sizeof(t_dollarg), 0, 0);
+  class_addcreator((t_newmethod)dollarg_new, gensym("$n"), 0);
+  class_addbang(dollarg_class, (t_method)dollarg_bang);
+  class_addfloat(dollarg_class, (t_method)dollarg_float);
+//  class_sethelpsymbol(dollarg_class, gensym("iemhelp/help-dollarg"));
+}
-- 
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