a simple object that will print a trackable error to the console; the "source" for the error will be the specified canvas

svn path=/trunk/externals/iem/iemguts/; revision=11837

1 files changed, 106 insertions, 0 deletions

diff --git a/src/canvaserror.c b/src/canvaserror.c
new file mode 100644
index 0000000..c2abc09
--- /dev/null
+++ b/src/canvaserror.c
@@ -0,0 +1,106 @@
+
+/******************************************************
+ *
+ * canvaserror - 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"
+
+
+/* ------------------------- canvaserror ---------------------------- */
+
+static t_class *canvaserror_class;
+
+typedef struct _canvaserror
+{
+  t_object  x_obj;
+
+  t_canvas  *x_canvas;
+} t_canvaserror;
+
+
+static void canvaserror_any(t_canvaserror *x, t_symbol*s, int argc, t_atom*argv)
+{
+  t_canvas*c=x->x_canvas;
+  t_atom name[1];
+  char*bbstring;
+  int length;
+  
+
+  t_binbuf*bb=binbuf_new();
+  SETSYMBOL(name, s);
+  binbuf_add(bb, 1, name);
+  binbuf_add(bb, argc, argv);
+  binbuf_gettext(bb, &bbstring, &length);
+  binbuf_free(bb);
+
+  bbstring[length]=0;
+
+  if(!c) {
+    pd_error(x, "%s", bbstring);
+  } else {
+    t_symbol*objectname=c->gl_name;
+    pd_error(c, "%s: %s", objectname->s_name, bbstring);
+  }
+  freebytes(bbstring, length);
+
+}
+
+static void canvaserror_free(t_canvaserror *x)
+{
+}
+
+static void *canvaserror_new(t_floatarg f)
+{
+  t_canvaserror *x = (t_canvaserror *)pd_new(canvaserror_class);
+  t_glist *glist=(t_glist *)canvas_getcurrent();
+  t_canvas *canvas=(t_canvas*)glist_getcanvas(glist);
+
+  int depth=(int)f;
+  if(depth<0)depth=0;
+
+  while(depth && canvas) {
+    canvas=canvas->gl_owner;
+    depth--;
+  }
+
+  x->x_canvas = canvas;
+  
+  return (x);
+}
+
+void canvaserror_setup(void)
+{
+  canvaserror_class = class_new(gensym("canvaserror"), (t_newmethod)canvaserror_new,
+                               (t_method)canvaserror_free, sizeof(t_canvaserror), 0, A_DEFFLOAT, 0);
+  class_addanything(canvaserror_class, (t_method)canvaserror_any);
+}