From ee7deb06e7acec3a4c8989981603ad047647ce47 Mon Sep 17 00:00:00 2001
From: Tilman Sauerbeck <tilman@code-monkey.de>
Date: Tue, 21 Feb 2006 21:20:35 +0000
Subject: [PATCH] Finalize Evas::Smart API.

You'll now have to inherit from Evas::Smart and define SMART_NAME
in your class to get a smart object.
---
 src/rb_smart.c | 79 +++++++++++++++++++++++---------------------------
 1 file changed, 36 insertions(+), 43 deletions(-)

diff --git a/src/rb_smart.c b/src/rb_smart.c
index 4abce29..ba7bd30 100644
--- a/src/rb_smart.c
+++ b/src/rb_smart.c
@@ -1,5 +1,5 @@
 /*
- * $Id: rb_smart.c 354 2006-02-10 18:14:08Z tilman $
+ * $Id: rb_smart.c 374 2006-02-21 21:20:35Z tilman $
  *
  * Copyright (C) 2004 Tilman Sauerbeck (tilman at code-monkey de)
  *
@@ -57,6 +57,8 @@
 		rb_funcall (self, id, 2, INT2FIX ((int) a), INT2FIX ((int) b)); \
 	}
 
+static ID id_smart_object;
+
 SMART_CB (delete);
 SMART_CB (raise);
 SMART_CB (lower);
@@ -84,66 +86,57 @@ static void on_color_set (Evas_Object *o, int r, int g, int b, int a)
 	            INT2FIX (a));
 }
 
-static VALUE c_alloc (VALUE klass)
+static VALUE c_inherited (VALUE klass, VALUE child)
 {
-	Evas_Smart **smart = NULL;
+	rb_const_set (child, id_smart_object, Qnil);
 
-	return Data_Make_Struct (klass, Evas_Smart *, NULL, free, smart);
+	return Qnil;
 }
 
-/*
- * call-seq:
- *  Evas::Smart.new(name) => smart
- *
- * Creates a Evas::Smart object with the given name.
- */
-static VALUE c_init (VALUE self, VALUE name)
+static VALUE c_init (VALUE self, VALUE evas)
 {
-	GET_OBJ (self, Evas_Smart *, smart);
-
-	Check_Type (name, T_STRING);
-
-	*smart = evas_smart_new (StringValuePtr (name),
-	                         NULL, on_delete, on_layer_set,
-	                         on_raise, on_lower, on_stack_above,
-	                         on_stack_below, on_move, on_resize,
-	                         on_show, on_hide, on_color_set,
-	                         on_clip_set, on_clip_unset, NULL);
-
-	return self;
-}
-
-/*
- * call-seq:
- *  smart.new_object(class, evas) => smart_obj
- *
- * Creates a Evas::EvasObject from <i>smart</i>.
- */
-static VALUE c_new_object (VALUE self, VALUE klass, VALUE evas)
-{
-	VALUE obj;
+	VALUE klass, smart, name;
+	Evas_Smart **s = NULL;
 
 	CHECK_CLASS (evas, cEvas);
 	GET_OBJ (evas, RbEvas, e);
+	GET_OBJ (self, RbEvasObject, s2);
 
-	GET_OBJ (self, Evas_Smart *, s);
+	klass = rb_obj_class (self);
 
-	obj = rb_obj_alloc (klass);
+	/* check whether the smart object has been created already */
+	smart = rb_const_get (klass, id_smart_object);
+	if (!NIL_P (smart))
+		Data_Get_Struct (smart, Evas_Smart *, s);
+	else {
+		name = rb_class_path (klass);
 
-	GET_OBJ (obj, RbEvasObject, smart);
+		smart = Data_Make_Struct (rb_cObject, Evas_Smart *, NULL, NULL, s);
 
-	smart->real = evas_object_smart_add (e->real, *s);
+		*s = evas_smart_new (StringValuePtr (name),
+		                     NULL, on_delete, on_layer_set,
+		                     on_raise, on_lower, on_stack_above,
+		                     on_stack_below, on_move, on_resize,
+		                     on_show, on_hide, on_color_set,
+		                     on_clip_set, on_clip_unset, NULL);
 
-	rb_obj_call_init (obj, 1, &evas);
+		rb_mod_remove_const(klass, ID2SYM (id_smart_object));
+		rb_const_set (klass, id_smart_object, smart);
+	}
 
-	return obj;
+	s2->real = evas_object_smart_add (e->real, *s);
+
+	rb_call_super (1, &evas);
+
+	return self;
 }
 
 void Init_Smart (void)
 {
-	VALUE c = rb_define_class_under (mEvas, "Smart", rb_cObject);
+	VALUE c = rb_define_class_under (mEvas, "Smart", cEvasObject);
 
-	rb_define_alloc_func (c, c_alloc);
+	rb_define_singleton_method (c, "inherited", c_inherited, 1);
 	rb_define_method (c, "initialize", c_init, 1);
-	rb_define_method (c, "new_object", c_new_object, 2);
+
+	id_smart_object = rb_intern ("SMART_OBJECT");
 }
-- 
2.30.2