From 208200ef713d588a1cb5c4d125b2bfccc9a7e2ce Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?IOhannes=20m=20zm=C3=B6lnig?=
 <zmoelnig@users.sourceforge.net>
Date: Mon, 19 Sep 2005 14:47:50 +0000
Subject: added a bunch of new objects (from f.zotter); some of them are
 unstable, some are likely to change in their behaviour (read: not yet for
 use)

svn path=/trunk/externals/iem/iemmatrix/; revision=3598
---
 src/mtx_colon.c | 114 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 src/mtx_colon.c

(limited to 'src/mtx_colon.c')

diff --git a/src/mtx_colon.c b/src/mtx_colon.c
new file mode 100644
index 0000000..c6ce8ff
--- /dev/null
+++ b/src/mtx_colon.c
@@ -0,0 +1,114 @@
+/*
+ *  iemmatrix
+ *
+ *  objects for manipulating simple matrices
+ *  mostly refering to matlab/octave matrix functions
+ *
+ * Copyright (c) 2005, Franz Zotter
+ * IEM, Graz, Austria
+ *
+ * For information on usage and redistribution, and for a DISCLAIMER OF ALL
+ * WARRANTIES, see the file, "LICENSE.txt," in this distribution.
+ *
+ */
+
+
+#include "iemmatrix.h"
+
+static t_class *mtx_colon_class;
+
+typedef struct _MTXColon_ MTXColon;
+struct _MTXColon_
+{
+   t_object x_obj;
+   int size;
+
+   t_atom *list_out;
+   t_outlet *list_outlet;
+};
+
+static void deleteMTXColon (MTXColon *mtx_colon_obj) 
+{
+   if (mtx_colon_obj->list_out)
+      freebytes (mtx_colon_obj->list_out, sizeof(t_atom)*(mtx_colon_obj->size+2));
+}
+
+static void *newMTXColon (t_symbol *s, int argc, t_atom *argv)
+{
+   MTXColon *mtx_colon_obj = (MTXColon *) pd_new (mtx_colon_class);
+
+   mtx_colon_obj->list_outlet = outlet_new (&mtx_colon_obj->x_obj, gensym("matrix"));
+   return ((void *) mtx_colon_obj);
+} 
+
+static void mTXColonBang (MTXColon *mtx_colon_obj)
+{
+   if (mtx_colon_obj->list_out) 
+      outlet_anything(mtx_colon_obj->list_outlet, gensym("matrix"), 
+	    mtx_colon_obj->size+2, mtx_colon_obj->list_out);
+}
+
+static void mTXColonList (MTXColon *mtx_colon_obj, t_symbol *s,
+      int argc, t_atom *argv)
+{
+   int size;
+   t_float startval;
+   t_float stopval;
+   t_float step;
+   t_atom *list_out = mtx_colon_obj->list_out;
+   if (argc == 3) {
+      startval = atom_getfloat(argv++);
+      step = atom_getfloat(argv++);
+      stopval = atom_getfloat(argv++);
+   }
+   else if (argc == 2) {
+      startval = atom_getfloat(argv++);
+      stopval = atom_getfloat(argv++);
+      step = 1.0f;
+   }
+   else {
+      post("mtx_colon: wrong number of input arguments");
+      return;
+   }
+      
+   size = (int)((stopval- startval + step) / step);
+   //post("startval %f stopval %f step %f, size %d",startval, stopval, step, size);
+   if (size) {
+      if (size!=mtx_colon_obj->size) {
+	 if (list_out) 
+	    list_out = (t_atom *) resizebytes (list_out,
+		  sizeof(t_atom)*(mtx_colon_obj->size+2),
+		  sizeof(t_atom)*(size+2));
+	 else
+	    list_out = (t_atom*) getbytes (sizeof(t_atom)*(size+2));
+	 mtx_colon_obj->size = size;
+      }
+      mtx_colon_obj->list_out = list_out;
+
+      SETFLOAT (&list_out[0],1.0f);
+      SETFLOAT (&list_out[1],(t_float)size);
+      list_out += 2;
+      for (;size--;list_out++,startval+=step)
+	 SETFLOAT(list_out,startval);
+
+      mTXColonBang (mtx_colon_obj);
+   }
+}
+
+void mtx_colon_setup (void)
+{
+   mtx_colon_class = class_new 
+      (gensym("mtx_colon"),
+       (t_newmethod) newMTXColon,
+       (t_method) deleteMTXColon,
+       sizeof (MTXColon),
+       CLASS_DEFAULT, A_GIMME, 0);
+   class_addbang (mtx_colon_class, (t_method) mTXColonBang);
+   class_addlist (mtx_colon_class, (t_method) mTXColonList);
+   class_addcreator ((t_newmethod) newMTXColon, gensym("mtx_:"), A_GIMME, 0);
+   class_sethelpsymbol (mtx_colon_class, gensym("iemmatrix/mtx_colon"));
+}
+
+void iemtx_colon_setup(void){
+  mtx_colon_setup();
+}
-- 
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