add new example to dist.

2001-12-18  James Henstridge  <james@daa.com.au>

	* Makefile.am (EXTRA_DIST): add new example to dist.

	* examples/gobject/properties.py: test program that implements a
	few properties.

	* gobjectmodule.c (add_properties): new function for parsing the
	__gproperties__ class attribute.
	(create_property): helper routine for creating and installing the
	new pspecs.
	(pyg_type_register): add code to call add_properties if a
	__gproperties__ attribute is found.
	(pyg_object_class_init): set set_property/get_property methods in
	vtable, and get rid of debug message.
	(initgobject): add G_PARAM_* constants.

1 files changed, 43 insertions, 0 deletions

diff --git a/examples/properties.py b/examples/properties.py
new file mode 100644
index 0000000..2d36afc
--- /dev/null
+++ b/examples/properties.py
@@ -0,0 +1,43 @@
+import gobject
+
+class MyObject(gobject.GObject):
+    __gproperties__ = {
+        'foo': (gobject.TYPE_STRING, 'foo property', 'the foo of the object',
+                'bar', gobject.PARAM_READWRITE),
+        'boolprop': (gobject.TYPE_BOOLEAN, 'bool prop', 'a test boolean prop',
+                     0, gobject.PARAM_READABLE),
+    }
+
+    def __init__(self):
+        self.__gobject_init__()
+        self.foo = 'bar'
+    def do_set_property(self, pspec, value):
+        print '    do_set_property called for %s=%r' % (pspec.name, value)
+        if pspec.name == 'foo':
+            self.foo = value
+        else:
+            raise AttributeError, 'unknown property %s' % pspec.name
+    def do_get_property(self, pspec):
+        print '    do_get_property called for %s' % pspec.name
+        if pspec.name == 'foo':
+            return self.foo
+        elif pspec.name == 'boolprop':
+            return 1
+        else:
+            raise AttributeError, 'unknown property %s' % pspec.name
+gobject.type_register(MyObject)
+
+print "MyObject properties: ", gobject.list_properties(MyObject)
+obj = MyObject()
+
+val = obj.get_property('foo')
+print "obj.get_property('foo') == ", val
+
+obj.set_property('foo', 'spam')
+print "obj.set_property('foo', 'spam')"
+
+val = obj.get_property('foo')
+print "obj.get_property('foo') == ", val
+
+val = obj.get_property('boolprop')
+print "obj.get_property('boolprop') == ", val