3 #include <glib-object.h>
5 typedef struct _BindingSource
7 GObject parent_instance;
15 typedef struct _BindingSourceClass
17 GObjectClass parent_class;
30 static GType binding_source_get_type (void);
31 G_DEFINE_TYPE (BindingSource, binding_source, G_TYPE_OBJECT);
34 binding_source_set_property (GObject *gobject,
39 BindingSource *source = (BindingSource *) gobject;
44 source->foo = g_value_get_int (value);
48 source->bar = g_value_get_int (value);
51 case PROP_SOURCE_VALUE:
52 source->value = g_value_get_double (value);
55 case PROP_SOURCE_TOGGLE:
56 source->toggle = g_value_get_boolean (value);
60 G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
65 binding_source_get_property (GObject *gobject,
70 BindingSource *source = (BindingSource *) gobject;
75 g_value_set_int (value, source->foo);
79 g_value_set_int (value, source->bar);
82 case PROP_SOURCE_VALUE:
83 g_value_set_double (value, source->value);
86 case PROP_SOURCE_TOGGLE:
87 g_value_set_boolean (value, source->toggle);
91 G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
96 binding_source_class_init (BindingSourceClass *klass)
98 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
100 gobject_class->set_property = binding_source_set_property;
101 gobject_class->get_property = binding_source_get_property;
103 g_object_class_install_property (gobject_class, PROP_SOURCE_FOO,
104 g_param_spec_int ("foo", "Foo", "Foo",
108 g_object_class_install_property (gobject_class, PROP_SOURCE_BAR,
109 g_param_spec_int ("bar", "Bar", "Bar",
113 g_object_class_install_property (gobject_class, PROP_SOURCE_VALUE,
114 g_param_spec_double ("value", "Value", "Value",
118 g_object_class_install_property (gobject_class, PROP_SOURCE_TOGGLE,
119 g_param_spec_boolean ("toggle", "Toggle", "Toggle",
125 binding_source_init (BindingSource *self)
129 typedef struct _BindingTarget
131 GObject parent_instance;
138 typedef struct _BindingTargetClass
140 GObjectClass parent_class;
141 } BindingTargetClass;
152 static GType binding_target_get_type (void);
153 G_DEFINE_TYPE (BindingTarget, binding_target, G_TYPE_OBJECT);
156 binding_target_set_property (GObject *gobject,
161 BindingTarget *target = (BindingTarget *) gobject;
165 case PROP_TARGET_BAR:
166 target->bar = g_value_get_int (value);
169 case PROP_TARGET_VALUE:
170 target->value = g_value_get_double (value);
173 case PROP_TARGET_TOGGLE:
174 target->toggle = g_value_get_boolean (value);
178 G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
183 binding_target_get_property (GObject *gobject,
188 BindingTarget *target = (BindingTarget *) gobject;
192 case PROP_TARGET_BAR:
193 g_value_set_int (value, target->bar);
196 case PROP_TARGET_VALUE:
197 g_value_set_double (value, target->value);
200 case PROP_TARGET_TOGGLE:
201 g_value_set_boolean (value, target->toggle);
205 G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
210 binding_target_class_init (BindingTargetClass *klass)
212 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
214 gobject_class->set_property = binding_target_set_property;
215 gobject_class->get_property = binding_target_get_property;
217 g_object_class_install_property (gobject_class, PROP_TARGET_BAR,
218 g_param_spec_int ("bar", "Bar", "Bar",
222 g_object_class_install_property (gobject_class, PROP_TARGET_VALUE,
223 g_param_spec_double ("value", "Value", "Value",
227 g_object_class_install_property (gobject_class, PROP_TARGET_TOGGLE,
228 g_param_spec_boolean ("toggle", "Toggle", "Toggle",
234 binding_target_init (BindingTarget *self)
239 celsius_to_fahrenheit (GBinding *binding,
240 const GValue *source_value,
241 GValue *target_value,
242 gpointer user_data G_GNUC_UNUSED)
244 gdouble celsius, fahrenheit;
246 g_assert (G_VALUE_HOLDS (source_value, G_TYPE_DOUBLE));
247 g_assert (G_VALUE_HOLDS (target_value, G_TYPE_DOUBLE));
249 celsius = g_value_get_double (source_value);
250 fahrenheit = (9 * celsius / 5) + 32.0;
252 if (g_test_verbose ())
253 g_print ("Converting %.2fC to %.2fF\n", celsius, fahrenheit);
255 g_value_set_double (target_value, fahrenheit);
261 fahrenheit_to_celsius (GBinding *binding,
262 const GValue *source_value,
263 GValue *target_value,
264 gpointer user_data G_GNUC_UNUSED)
266 gdouble celsius, fahrenheit;
268 g_assert (G_VALUE_HOLDS (source_value, G_TYPE_DOUBLE));
269 g_assert (G_VALUE_HOLDS (target_value, G_TYPE_DOUBLE));
271 fahrenheit = g_value_get_double (source_value);
272 celsius = 5 * (fahrenheit - 32.0) / 9;
274 if (g_test_verbose ())
275 g_print ("Converting %.2fF to %.2fC\n", fahrenheit, celsius);
277 g_value_set_double (target_value, celsius);
283 binding_default (void)
285 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
286 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
289 binding = g_object_bind_property (source, "foo",
293 g_assert ((BindingSource *) g_binding_get_source (binding) == source);
294 g_assert ((BindingTarget *) g_binding_get_target (binding) == target);
295 g_assert_cmpstr (g_binding_get_source_property (binding), ==, "foo");
296 g_assert_cmpstr (g_binding_get_target_property (binding), ==, "bar");
297 g_assert_cmpint (g_binding_get_flags (binding), ==, G_BINDING_DEFAULT);
299 g_object_set (source, "foo", 42, NULL);
300 g_assert_cmpint (source->foo, ==, target->bar);
302 g_object_set (target, "bar", 47, NULL);
303 g_assert_cmpint (source->foo, !=, target->bar);
305 g_object_unref (binding);
307 g_object_set (source, "foo", 0, NULL);
308 g_assert_cmpint (source->foo, !=, target->bar);
310 g_object_unref (source);
311 g_object_unref (target);
315 binding_bidirectional (void)
317 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
318 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
321 binding = g_object_bind_property (source, "foo",
323 G_BINDING_BIDIRECTIONAL);
325 g_object_set (source, "foo", 42, NULL);
326 g_assert_cmpint (source->foo, ==, target->bar);
328 g_object_set (target, "bar", 47, NULL);
329 g_assert_cmpint (source->foo, ==, target->bar);
331 g_object_unref (binding);
333 g_object_set (source, "foo", 0, NULL);
334 g_assert_cmpint (source->foo, !=, target->bar);
336 g_object_unref (source);
337 g_object_unref (target);
341 data_free (gpointer data)
349 binding_transform_default (void)
351 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
352 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
355 gchar *src_prop, *trg_prop;
358 binding = g_object_bind_property (source, "foo",
360 G_BINDING_BIDIRECTIONAL);
362 g_object_get (binding,
364 "source-property", &src_prop,
366 "target-property", &trg_prop,
369 g_assert (src == source);
370 g_assert (trg == target);
371 g_assert_cmpstr (src_prop, ==, "foo");
372 g_assert_cmpstr (trg_prop, ==, "value");
373 g_assert_cmpint (flags, ==, G_BINDING_BIDIRECTIONAL);
374 g_object_unref (src);
375 g_object_unref (trg);
379 g_object_set (source, "foo", 24, NULL);
380 g_assert_cmpfloat (target->value, ==, 24.0);
382 g_object_set (target, "value", 69.0, NULL);
383 g_assert_cmpint (source->foo, ==, 69);
385 g_object_unref (target);
386 g_object_unref (source);
390 binding_transform (void)
392 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
393 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
394 GBinding *binding G_GNUC_UNUSED;
395 gboolean unused_data = FALSE;
397 binding = g_object_bind_property_full (source, "value",
399 G_BINDING_BIDIRECTIONAL,
400 celsius_to_fahrenheit,
401 fahrenheit_to_celsius,
402 &unused_data, data_free);
404 g_object_set (source, "value", 24.0, NULL);
405 g_assert_cmpfloat (target->value, ==, ((9 * 24.0 / 5) + 32.0));
407 g_object_set (target, "value", 69.0, NULL);
408 g_assert_cmpfloat (source->value, ==, (5 * (69.0 - 32.0) / 9));
410 g_object_unref (source);
411 g_object_unref (target);
413 g_assert (unused_data);
417 binding_transform_closure (void)
419 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
420 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
421 GBinding *binding G_GNUC_UNUSED;
422 gboolean unused_data_1 = FALSE, unused_data_2 = FALSE;
423 GClosure *c2f_clos, *f2c_clos;
425 c2f_clos = g_cclosure_new (G_CALLBACK (celsius_to_fahrenheit), &unused_data_1, (GClosureNotify) data_free);
427 f2c_clos = g_cclosure_new (G_CALLBACK (fahrenheit_to_celsius), &unused_data_2, (GClosureNotify) data_free);
429 binding = g_object_bind_property_with_closures (source, "value",
431 G_BINDING_BIDIRECTIONAL,
435 g_object_set (source, "value", 24.0, NULL);
436 g_assert_cmpfloat (target->value, ==, ((9 * 24.0 / 5) + 32.0));
438 g_object_set (target, "value", 69.0, NULL);
439 g_assert_cmpfloat (source->value, ==, (5 * (69.0 - 32.0) / 9));
441 g_object_unref (source);
442 g_object_unref (target);
444 g_assert (unused_data_1);
445 g_assert (unused_data_2);
451 BindingSource *a = g_object_new (binding_source_get_type (), NULL);
452 BindingSource *b = g_object_new (binding_source_get_type (), NULL);
453 BindingSource *c = g_object_new (binding_source_get_type (), NULL);
454 GBinding *binding_1, *binding_2;
456 g_test_bug ("621782");
459 binding_1 = g_object_bind_property (a, "foo", b, "foo", G_BINDING_BIDIRECTIONAL);
460 binding_2 = g_object_bind_property (b, "foo", c, "foo", G_BINDING_BIDIRECTIONAL);
462 /* verify the chain */
463 g_object_set (a, "foo", 42, NULL);
464 g_assert_cmpint (a->foo, ==, b->foo);
465 g_assert_cmpint (b->foo, ==, c->foo);
467 /* unbind A -> B and B -> C */
468 g_object_unref (binding_1);
469 g_object_unref (binding_2);
471 /* bind A -> C directly */
472 binding_2 = g_object_bind_property (a, "foo", c, "foo", G_BINDING_BIDIRECTIONAL);
474 /* verify the chain is broken */
475 g_object_set (a, "foo", 47, NULL);
476 g_assert_cmpint (a->foo, !=, b->foo);
477 g_assert_cmpint (a->foo, ==, c->foo);
485 binding_sync_create (void)
487 BindingSource *source = g_object_new (binding_source_get_type (),
490 BindingTarget *target = g_object_new (binding_target_get_type (),
495 binding = g_object_bind_property (source, "foo",
497 G_BINDING_DEFAULT | G_BINDING_SYNC_CREATE);
499 g_assert_cmpint (source->foo, ==, 42);
500 g_assert_cmpint (target->bar, ==, 42);
502 g_object_set (source, "foo", 47, NULL);
503 g_assert_cmpint (source->foo, ==, target->bar);
505 g_object_unref (binding);
507 g_object_set (target, "bar", 49, NULL);
509 binding = g_object_bind_property (source, "foo",
511 G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
512 g_assert_cmpint (source->foo, ==, 47);
513 g_assert_cmpint (target->bar, ==, 47);
515 g_object_unref (source);
516 g_object_unref (target);
520 binding_invert_boolean (void)
522 BindingSource *source = g_object_new (binding_source_get_type (),
525 BindingTarget *target = g_object_new (binding_target_get_type (),
530 binding = g_object_bind_property (source, "toggle",
532 G_BINDING_BIDIRECTIONAL | G_BINDING_INVERT_BOOLEAN);
534 g_assert (source->toggle);
535 g_assert (!target->toggle);
537 g_object_set (source, "toggle", FALSE, NULL);
538 g_assert (!source->toggle);
539 g_assert (target->toggle);
541 g_object_set (target, "toggle", FALSE, NULL);
542 g_assert (source->toggle);
543 g_assert (!target->toggle);
545 g_object_unref (binding);
546 g_object_unref (source);
547 g_object_unref (target);
551 binding_same_object (void)
553 BindingSource *source = g_object_new (binding_source_get_type (),
557 GBinding *binding G_GNUC_UNUSED;
559 binding = g_object_bind_property (source, "foo",
561 G_BINDING_BIDIRECTIONAL);
563 g_object_set (source, "foo", 10, NULL);
564 g_assert_cmpint (source->foo, ==, 10);
565 g_assert_cmpint (source->bar, ==, 10);
566 g_object_set (source, "bar", 30, NULL);
567 g_assert_cmpint (source->foo, ==, 30);
568 g_assert_cmpint (source->bar, ==, 30);
570 g_object_unref (source);
574 binding_unbind (void)
576 BindingSource *source = g_object_new (binding_source_get_type (), NULL);
577 BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
580 binding = g_object_bind_property (source, "foo",
583 g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
586 g_object_set (source, "foo", 42, NULL);
587 g_assert_cmpint (source->foo, ==, target->bar);
589 g_object_set (target, "bar", 47, NULL);
590 g_assert_cmpint (source->foo, !=, target->bar);
592 g_binding_unbind (binding);
593 g_assert (binding != NULL);
595 g_object_set (source, "foo", 0, NULL);
596 g_assert_cmpint (source->foo, !=, target->bar);
598 g_object_unref (source);
599 g_object_unref (target);
600 g_object_unref (binding);
601 g_assert (binding == NULL);
605 main (int argc, char *argv[])
607 g_test_init (&argc, &argv, NULL);
609 g_test_bug_base ("http://bugzilla.gnome.org/");
611 g_test_add_func ("/binding/default", binding_default);
612 g_test_add_func ("/binding/bidirectional", binding_bidirectional);
613 g_test_add_func ("/binding/transform", binding_transform);
614 g_test_add_func ("/binding/transform-default", binding_transform_default);
615 g_test_add_func ("/binding/transform-closure", binding_transform_closure);
616 g_test_add_func ("/binding/chain", binding_chain);
617 g_test_add_func ("/binding/sync-create", binding_sync_create);
618 g_test_add_func ("/binding/invert-boolean", binding_invert_boolean);
619 g_test_add_func ("/binding/same-object", binding_same_object);
620 g_test_add_func ("/binding/unbind", binding_unbind);
622 return g_test_run ();