1 files changed, 119 insertions, 0 deletions
diff --git a/src/argument.c b/src/argument.c
new file mode 100644
index 0000000..0c7df4b
--- /dev/null
+++ b/src/argument.c
@@ -0,0 +1,119 @@
+/*
+ *      argument.c
+ *      
+ *      Copyright 2009 Thomas O Fredericks <tom@hp>
+ *      
+ *      This program is free software; you can redistribute it and/or modify
+ *      it under the terms of the GNU General Public License as published by
+ *      the Free Software Foundation; either version 2 of the License, or
+ *      (at your option) any later version.
+ *      
+ *      This program is distributed in the hope that it will be useful,
+ *      but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *      GNU General Public License for more details.
+ *      
+ *      You should have received a copy of the GNU General Public License
+ *      along with this program; if not, write to the Free Software
+ *      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ *      MA 02110-1301, USA.
+ */
+
+#include "tof.h"
+
+t_class *argument_class;
+
+typedef struct argument
+{
+    t_object x_ob;
+    //t_canvas * x_canvas;
+    t_outlet* x_outlet;
+    t_atom x_a;
+	int has_value;
+} t_argument;
+
+static void argument_bang(t_argument *x)
+{
+	
+   if (x->has_value) {
+		if ( IS_A_SYMBOL(&(x->x_a),0) ) {
+			outlet_symbol(x->x_outlet,atom_getsymbol(&(x->x_a)));
+		} else {
+			outlet_float(x->x_outlet,atom_getfloat(&(x->x_a)));
+		}
+    }
+   
+
+}
+
+
+static void argument_free(t_argument *x) {
+	
+	//freebytes(x->x_a, sizeof(t_atom));
+}
+
+
+//static void *argument_new(t_floatarg level)
+static void *argument_new(t_symbol *s, int argc, t_atom *argv)
+{
+    t_argument *x = (t_argument *)pd_new(argument_class);
+    
+  
+    t_canvas *canvas=tof_get_canvas();
+    
+    x->x_outlet =  outlet_new(&x->x_ob, &s_list);
+    //x->x_a = (t_atom *)getbytes(sizeof(t_atom));
+  
+   x->has_value = 0;
+   int i = 0;
+  
+   // Check argument i and default value
+    if ( argc >= 1 && IS_A_FLOAT(argv,0) ) {
+    	i = atom_getfloat(argv);
+	}
+	
+	 // Get the canvas' arguments
+   int ac;
+   t_atom *av;
+   tof_get_canvas_arguments(canvas,&ac, &av);
+ 
+
+   // Check arguments 
+   
+   if ( i == 0) { //Is the argument index 0?
+	 // Get the dollar zero
+	  SETSYMBOL(&(x->x_a),tof_get_dollar(canvas,gensym("$0")));
+	   x->has_value = 1;
+   } else {
+	   //if ( ac  >= i  ) {
+			if ( argc > 1 ) { //Is there a default argument?
+			   //Are the parent and default arguments the same type?
+			   if ( ac  >= i && (av+(i-1))->a_type == (argv+1)->a_type) {
+				   x->x_a = av[i-1]; //Use the parent value
+			   } else {
+				   x->x_a = argv[1]; //Use the default value
+				}
+				x->has_value = 1;
+			} else { //No default argument, so no type check
+			   if ( ac  >= i ) {  //Are there enough parent arguments?
+					x->x_a = av[i-1]; //Use the parent value
+					x->has_value = 1;
+				}
+			}
+	        
+	   //}
+	}
+
+    return (void *)x;
+}
+
+void argument_setup(void)
+{
+	    
+    argument_class = class_new(gensym("argument"), 
+    (t_newmethod)argument_new, (t_method)argument_free,
+        sizeof(t_argument), CLASS_DEFAULT, A_GIMME,0);
+    class_addbang(argument_class, argument_bang);
+   
+}
+