From 0ec3b348a5c2c5ea80d95bae37b34417ab8685e1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?IOhannes=20m=20zm=C3=B6lnig?=
 <zmoelnig@users.sourceforge.net>
Date: Wed, 5 Sep 2007 09:38:17 +0000
Subject: a new library for innards

svn path=/trunk/externals/iem/iemguts/; revision=8704
---
 src/propertybang.c | 86 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 src/propertybang.c

(limited to 'src/propertybang.c')

diff --git a/src/propertybang.c b/src/propertybang.c
new file mode 100644
index 0000000..d994582
--- /dev/null
+++ b/src/propertybang.c
@@ -0,0 +1,86 @@
+
+/******************************************************
+ *
+ * propertybang - 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 make an abstraction "property" aware
+ * usage:
+ *   + put this object into an abstraction
+ *   + put the abstraction in a patch
+ *   + you can now right-click on the abstraction and select the "properties" menu
+ *   + selecting the "properties" menu, will send a bang to the outlet of this object
+ *
+ * nice, eh?
+ */
+
+
+#include "m_pd.h"
+#include "g_canvas.h"
+
+
+/* ------------------------- propertybang ---------------------------- */
+
+static t_class *propertybang_class;
+
+typedef struct _propertybang
+{
+  t_object  x_obj;
+  t_symbol *x_d0name;
+} t_propertybang;
+
+
+static void propertybang_free(t_propertybang *x)
+{
+  pd_unbind(&x->x_obj.ob_pd, x->x_d0name);
+}
+
+static void propertybang_anything(t_propertybang *x, t_symbol*s, int argc, t_atom*argv) {
+  if(s==&s_bang && argc==0) {
+    outlet_bang(x->x_obj.ob_outlet);
+  }
+}
+
+static void propertybang_properties(t_gobj*z, t_glist*owner) {
+  // argh: z is the abstraction! but we need to access ourselfs!
+  // we handle this by binding to a special symbol. e.g. "$0-propertybang"
+
+  t_symbol*s_d0name=canvas_realizedollar((t_canvas*)z, gensym("$0 propertybang"));
+    pd_bang(s_d0name->s_thing);
+}
+
+static void *propertybang_new(void)
+{
+  t_propertybang *x = (t_propertybang *)pd_new(propertybang_class);
+  t_glist *glist=(t_glist *)canvas_getcurrent();
+  t_canvas *canvas=(t_canvas*)glist_getcanvas(glist);
+  t_class *class = ((t_gobj*)canvas)->g_pd;
+
+  outlet_new(&x->x_obj, &s_bang);
+
+  x->x_d0name=canvas_realizedollar(canvas, gensym("$0 propertybang"));
+  pd_bind(&x->x_obj.ob_pd, x->x_d0name);
+
+  class_setpropertiesfn(class, propertybang_properties);
+  return (x);
+}
+
+void propertybang_setup(void)
+{
+  propertybang_class = class_new(gensym("propertybang"), (t_newmethod)propertybang_new,
+    (t_method)propertybang_free, sizeof(t_propertybang), CLASS_NOINLET, 0);
+  class_addanything(propertybang_class, propertybang_anything);
+}
-- 
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