renamed [saveargs] to [canvasargs]

svn path=/trunk/externals/iem/iemguts/; revision=10397

1 files changed, 112 insertions, 0 deletions

diff --git a/src/canvasargs.c b/src/canvasargs.c
new file mode 100644
index 0000000..019daaf
--- /dev/null
+++ b/src/canvasargs.c
@@ -0,0 +1,112 @@
+/******************************************************
+ *
+ * canvasargs - implementation file
+ *
+ * copyleft (c) IOhannes m zm-bölnig-A
+ *
+ *   2007:forum::f-bür::umläute:2007-A
+ *
+ *   institute of electronic music and acoustics (iem)
+ *
+ ******************************************************
+ *
+ * license: GNU General Public License v.2
+ *
+ ******************************************************/
+
+
+/* 
+ * this object provides a way to manipulate the parent-patches arguments (and name!)
+ * usage:
+ *   + put this object into an abstraction
+ *   + put the abstraction in a patch
+ *   + send the object a _list_ of arguments
+ *    + the next time the patch (wherein the abstraction that holds this object lives)
+ *      is saved, it will be saved with the new arguments instead of the old ones!
+ *    - example: "list 2 3 4" will save the object as [<absname> 2 3 4]
+ *   + you can also change the abstraction name itself by using a selector other than "list"
+ *    - example: "bonkers 8 9" will save the object as [bonkers 8 9] regardless of it's original name
+ *    - use with care!
+ *
+ * nice, eh?
+ */
+
+#include "m_pd.h"
+#include "g_canvas.h"
+
+
+/* ------------------------- canvasargs ---------------------------- */
+
+static t_class *canvasargs_class;
+
+typedef struct _canvasargs
+{
+  t_object  x_obj;
+
+  t_canvas  *x_canvas;
+} t_canvasargs;
+
+
+static void canvasargs_list(t_canvasargs *x, t_symbol*s, int argc, t_atom*argv)
+{
+  t_canvas*c=x->x_canvas;
+  t_binbuf*b=0;
+  t_atom name[1];
+
+  if(!x->x_canvas) return;
+  b=x->x_canvas->gl_obj.te_binbuf;
+
+  if(!b)return;
+
+  if(s==0 || s==gensym("") || s==&s_list || s==&s_bang || s==&s_float || s==&s_symbol || s==&s_) {
+    t_atom*ap=binbuf_getvec(b);
+    s=atom_getsymbol(ap);
+  }
+  SETSYMBOL(name, s);
+  
+  binbuf_clear(b);
+  binbuf_add(b, 1, name);
+  binbuf_add(b, argc, argv);
+}
+
+static void canvasargs_bang(t_canvasargs *x)
+{
+  int argc=0;
+  t_atom*argv=0;
+  t_binbuf*b;
+
+  if(!x->x_canvas) return;
+  b=x->x_canvas->gl_obj.te_binbuf;
+
+  if(!b)return;
+
+  argc=binbuf_getnatom(b);
+  argv=binbuf_getvec(b);
+  post("...");
+  outlet_list(x->x_obj.ob_outlet, &s_list, argc-1, argv+1);
+}
+
+
+static void canvasargs_free(t_canvasargs *x)
+{
+}
+
+static void *canvasargs_new(void)
+{
+  t_canvasargs *x = (t_canvasargs *)pd_new(canvasargs_class);
+  t_glist *glist=(t_glist *)canvas_getcurrent();
+  t_canvas *canvas=(t_canvas*)glist_getcanvas(glist);
+    
+  x->x_canvas = canvas;
+
+  outlet_new(&x->x_obj, 0);
+  return (x);
+}
+
+void canvasargs_setup(void)
+{
+  canvasargs_class = class_new(gensym("canvasargs"), (t_newmethod)canvasargs_new,
+    (t_method)canvasargs_free, sizeof(t_canvasargs), 0, 0);
+  class_addlist(canvasargs_class, (t_method)canvasargs_list);
+  class_addbang(canvasargs_class, (t_method)canvasargs_bang);
+}