Added gemspec to be able to bundle install from git.

Added IplImage#smoothness that returns :smooth, :messy, or :blank.
Rake compile will now compile the C extension code.

ext/opencv/cvline.cpp

@@ -0,0 +1,154 @@
+/************************************************************
+
+   cvline.cpp -
+
+   $Author: lsxi $
+
+   Copyright (C) 2005-2006 Masakazu Yonekura
+
+************************************************************/
+#include "cvline.h"
+/*
+ * Document-class: OpenCV::CvLine
+ *
+ */
+__NAMESPACE_BEGIN_OPENCV
+__NAMESPACE_BEGIN_CVLINE
+
+VALUE rb_klass;
+
+VALUE
+rb_class()
+{
+  return rb_klass;
+}
+
+void
+define_ruby_class()
+{
+  if (rb_klass)
+    return;
+  /* 
+   * opencv = rb_define_module("OpenCV");
+   * 
+   * note: this comment is used by rdoc.
+   */
+  VALUE opencv = rb_module_opencv();
+  
+  rb_klass = rb_define_class_under(opencv, "CvLine", rb_cObject);
+  rb_define_alloc_func(rb_klass, rb_allocate);
+  rb_define_method(rb_klass, "rho", RUBY_METHOD_FUNC(rb_rho), 0);
+  rb_define_method(rb_klass, "rho=", RUBY_METHOD_FUNC(rb_set_rho), 1);
+  rb_define_method(rb_klass, "theta", RUBY_METHOD_FUNC(rb_theta), 0);
+  rb_define_method(rb_klass, "theta=", RUBY_METHOD_FUNC(rb_set_theta), 1);
+  rb_define_method(rb_klass, "[]", RUBY_METHOD_FUNC(rb_aref), 1);
+  rb_define_method(rb_klass, "[]=", RUBY_METHOD_FUNC(rb_aset), 2);
+}
+
+VALUE
+rb_allocate(VALUE klass)
+{
+  CvLine *ptr;
+  return Data_Make_Struct(klass, CvLine, 0, -1, ptr);
+}
+
+/*
+ * Return parameter on rho.
+ */
+VALUE
+rb_rho(VALUE self)
+{
+  return rb_float_new(CVLINE(self)->rho);
+}
+
+/*
+ * call-seq:
+ *   rho = val
+ *
+ * Set rho parameter, return self.
+ */
+VALUE
+rb_set_rho(VALUE self, VALUE rho)
+{
+  CVLINE(self)->rho = NUM2DBL(rho);
+  return self;
+}
+
+/*
+ * Return parameter on theta.
+ */
+VALUE
+rb_theta(VALUE self)
+{
+  return rb_float_new(CVLINE(self)->theta);
+}
+
+/*
+ * call-seq:
+ *   y = val
+ *
+ * Set theta parameter, return self.
+ */
+VALUE
+rb_set_theta(VALUE self, VALUE theta)
+{
+  CVLINE(self)->theta = NUM2DBL(theta);
+  return self;
+}
+
+/*
+ * call-seq:
+ *   [<i>index</i>]
+ *
+ * Return value of <i>index</i> dimension.
+ */
+VALUE
+rb_aref(VALUE self, VALUE index)
+{
+  switch (NUM2INT(index)) {
+  case 0:
+    return DBL2NUM(CVLINE(self)->rho);
+    break;
+  case 1:
+    return DBL2NUM(CVLINE(self)->theta);
+    break;
+  default:
+    rb_raise(rb_eIndexError, "index should be 0...2");
+    break;
+  }
+  return Qnil;
+}
+
+/*
+ * call-seq:
+ *   [<i>index</i>] = <i>value</i>
+ *
+ * Set value of <i>index</i> dimension to <i>value</i>
+ */
+VALUE
+rb_aset(VALUE self, VALUE index, VALUE value)
+{
+  switch (NUM2INT(index)) {
+  case 0:
+    CVLINE(self)->rho = NUM2DBL(value);
+    break;
+  case 1:
+    CVLINE(self)->theta = NUM2DBL(value);
+    break;
+  default:
+    rb_raise(rb_eIndexError, "index should be 0...2");
+    break;
+  }
+  return value;
+}
+
+VALUE
+new_object(CvLine line)
+{
+  VALUE object = rb_allocate(rb_klass);
+  *CVLINE(object) = line;
+  return object;
+}
+
+__NAMESPACE_END_CVLINE
+__NAMESPACE_END_OPENCV