+++ /dev/null
-/* GObject - GLib Type, Object, Parameter and Signal Library
- * Copyright (C) 2001 Red Hat, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General
- * Public License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include <string.h>
-
-#undef G_LOG_DOMAIN
-#define G_LOG_DOMAIN "TestObject"
-#include <glib-object.h>
-
-/* --- TestIface --- */
-#define TEST_TYPE_IFACE (test_iface_get_type ())
-#define TEST_IFACE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TEST_TYPE_IFACE, TestIface))
-#define TEST_IS_IFACE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TEST_TYPE_IFACE))
-#define TEST_IFACE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), TEST_TYPE_IFACE, TestIfaceClass))
-typedef struct _TestIface TestIface;
-typedef struct _TestIfaceClass TestIfaceClass;
-struct _TestIfaceClass
-{
- GTypeInterface base_iface;
- void (*print_string) (TestIface *tiobj,
- const gchar *string);
-};
-static void iface_base_init (TestIfaceClass *iface);
-static void iface_base_finalize (TestIfaceClass *iface);
-static void print_foo (TestIface *tiobj,
- const gchar *string);
-GType
-test_iface_get_type (void)
-{
- static GType test_iface_type = 0;
-
- if (!test_iface_type)
- {
- static const GTypeInfo test_iface_info =
- {
- sizeof (TestIfaceClass),
- (GBaseInitFunc) iface_base_init, /* base_init */
- (GBaseFinalizeFunc) iface_base_finalize, /* base_finalize */
- };
-
- test_iface_type = g_type_register_static (G_TYPE_INTERFACE, "TestIface", &test_iface_info, 0);
- g_type_interface_add_prerequisite (test_iface_type, G_TYPE_OBJECT);
- }
-
- return test_iface_type;
-}
-static guint iface_base_init_count = 0;
-static void
-iface_base_init (TestIfaceClass *iface)
-{
- iface_base_init_count++;
- if (iface_base_init_count == 1)
- {
- /* add signals here */
- }
-}
-static void
-iface_base_finalize (TestIfaceClass *iface)
-{
- iface_base_init_count--;
- if (iface_base_init_count == 0)
- {
- /* destroy signals here */
- }
-}
-static void
-print_foo (TestIface *tiobj,
- const gchar *string)
-{
- if (!string)
- string = "<NULL>";
- g_print ("Iface-FOO: \"%s\" from %p\n", string, tiobj);
-}
-static void
-test_object_test_iface_init (gpointer giface,
- gpointer iface_data)
-{
- TestIfaceClass *iface = giface;
-
- g_assert (iface_data == GUINT_TO_POINTER (42));
-
- g_assert (G_TYPE_FROM_INTERFACE (iface) == TEST_TYPE_IFACE);
-
- /* assert iface_base_init() was already called */
- g_assert (iface_base_init_count > 0);
-
- /* initialize stuff */
- iface->print_string = print_foo;
-}
-void
-iface_print_string (TestIface *tiobj,
- const gchar *string)
-{
- TestIfaceClass *iface;
-
- g_return_if_fail (TEST_IS_IFACE (tiobj));
- g_return_if_fail (G_IS_OBJECT (tiobj)); /* ensured through prerequisite */
-
- iface = TEST_IFACE_GET_CLASS (tiobj);
- g_object_ref (tiobj);
- iface->print_string (tiobj, string);
- g_object_unref (tiobj);
-}
-
-
-/* --- TestObject --- */
-#define TEST_TYPE_OBJECT (test_object_get_type ())
-#define TEST_OBJECT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), TEST_TYPE_OBJECT, TestObject))
-#define TEST_OBJECT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TEST_TYPE_OBJECT, TestObjectClass))
-#define TEST_IS_OBJECT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), TEST_TYPE_OBJECT))
-#define TEST_IS_OBJECT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TEST_TYPE_OBJECT))
-#define TEST_OBJECT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TEST_TYPE_OBJECT, TestObjectClass))
-typedef struct _TestObject TestObject;
-typedef struct _TestObjectClass TestObjectClass;
-struct _TestObject
-{
- GObject parent_instance;
-};
-struct _TestObjectClass
-{
- GObjectClass parent_class;
-
- gchar* (*test_signal) (TestObject *tobject,
- TestIface *iface_object,
- gpointer tdata);
-};
-static void test_object_class_init (TestObjectClass *class);
-static void test_object_init (TestObject *tobject);
-static gboolean test_signal_accumulator (GSignalInvocationHint *ihint,
- GValue *return_accu,
- const GValue *handler_return,
- gpointer data);
-static gchar* test_object_test_signal (TestObject *tobject,
- TestIface *iface_object,
- gpointer tdata);
-GType
-test_object_get_type (void)
-{
- static GType test_object_type = 0;
-
- if (!test_object_type)
- {
- static const GTypeInfo test_object_info =
- {
- sizeof (TestObjectClass),
- NULL, /* base_init */
- NULL, /* base_finalize */
- (GClassInitFunc) test_object_class_init,
- NULL, /* class_finalize */
- NULL, /* class_data */
- sizeof (TestObject),
- 5, /* n_preallocs */
- (GInstanceInitFunc) test_object_init,
- };
- GInterfaceInfo iface_info = { test_object_test_iface_init, NULL, GUINT_TO_POINTER (42) };
-
- test_object_type = g_type_register_static (G_TYPE_OBJECT, "TestObject", &test_object_info, 0);
- g_type_add_interface_static (test_object_type, TEST_TYPE_IFACE, &iface_info);
- }
-
- return test_object_type;
-}
-static void
-test_object_class_init (TestObjectClass *class)
-{
- /* GObjectClass *gobject_class = G_OBJECT_CLASS (class); */
-
- class->test_signal = test_object_test_signal;
-
- g_signal_new ("test-signal",
- G_OBJECT_CLASS_TYPE (class),
- G_SIGNAL_RUN_FIRST | G_SIGNAL_RUN_LAST | G_SIGNAL_RUN_CLEANUP,
- G_STRUCT_OFFSET (TestObjectClass, test_signal),
- test_signal_accumulator, NULL,
- g_cclosure_marshal_STRING__OBJECT_POINTER,
- G_TYPE_STRING, 2, TEST_TYPE_IFACE, G_TYPE_POINTER);
-}
-static void
-test_object_init (TestObject *tobject)
-{
-}
-static gboolean
-test_signal_accumulator (GSignalInvocationHint *ihint,
- GValue *return_accu,
- const GValue *handler_return,
- gpointer data)
-{
- gchar *accu_string = g_value_get_string (return_accu);
- gchar *new_string = g_value_get_string (handler_return);
- gchar *result_string;
-
- if (accu_string)
- result_string = g_strconcat (accu_string, new_string, NULL);
- else if (new_string)
- result_string = g_strdup (new_string);
- else
- result_string = NULL;
-
- g_value_set_string_take_ownership (return_accu, result_string);
-
- return TRUE;
-}
-static gchar*
-test_object_test_signal (TestObject *tobject,
- TestIface *iface_object,
- gpointer tdata)
-{
- g_message ("::test_signal default_handler called");
-
- g_return_val_if_fail (TEST_IS_IFACE (iface_object), NULL);
-
- return g_strdup ("<default_handler>");
-}
-
-
-/* --- TestIface for DerivedObject --- */
-static void
-print_bar (TestIface *tiobj,
- const gchar *string)
-{
- TestIfaceClass *parent_iface;
-
- g_return_if_fail (TEST_IS_IFACE (tiobj));
-
- if (!string)
- string = "<NULL>";
- g_print ("Iface-BAR: \"%s\" from %p\n", string, tiobj);
-
- g_print ("chaining: ");
- parent_iface = g_type_interface_peek_parent (TEST_IFACE_GET_CLASS (tiobj));
- parent_iface->print_string (tiobj, string);
-
- g_assert (g_type_interface_peek_parent (parent_iface) == NULL);
-}
-
-static void
-derived_object_test_iface_init (gpointer giface,
- gpointer iface_data)
-{
- TestIfaceClass *iface = giface;
-
- g_assert (iface_data == GUINT_TO_POINTER (87));
-
- g_assert (G_TYPE_FROM_INTERFACE (iface) == TEST_TYPE_IFACE);
-
- /* assert test_object_test_iface_init() was already called */
- g_assert (iface->print_string == print_foo);
-
- /* override stuff */
- iface->print_string = print_bar;
-}
-
-
-/* --- DerivedObject --- */
-#define DERIVED_TYPE_OBJECT (derived_object_get_type ())
-#define DERIVED_OBJECT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), DERIVED_TYPE_OBJECT, DerivedObject))
-#define DERIVED_OBJECT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), DERIVED_TYPE_OBJECT, DerivedObjectClass))
-#define DERIVED_IS_OBJECT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), DERIVED_TYPE_OBJECT))
-#define DERIVED_IS_OBJECT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), DERIVED_TYPE_OBJECT))
-#define DERIVED_OBJECT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), DERIVED_TYPE_OBJECT, DerivedObjectClass))
-typedef struct _TestObject DerivedObject;
-typedef struct _TestObjectClass DerivedObjectClass;
-GType
-derived_object_get_type (void)
-{
- static GType derived_object_type = 0;
-
- if (!derived_object_type)
- {
- static const GTypeInfo derived_object_info =
- {
- sizeof (DerivedObjectClass),
- NULL, /* base_init */
- NULL, /* base_finalize */
- NULL, /* class_init */
- NULL, /* class_finalize */
- NULL, /* class_data */
- sizeof (DerivedObject),
- 5, /* n_preallocs */
- NULL, /* instance_init */
- };
- GInterfaceInfo iface_info = { derived_object_test_iface_init, NULL, GUINT_TO_POINTER (87) };
-
- derived_object_type = g_type_register_static (TEST_TYPE_OBJECT, "DerivedObject", &derived_object_info, 0);
- g_type_add_interface_static (derived_object_type, TEST_TYPE_IFACE, &iface_info);
- }
-
- return derived_object_type;
-}
-
-
-/* --- main --- */
-int
-main (int argc,
- char *argv[])
-{
- TestObject *sigarg;
- DerivedObject *dobject;
- gchar *string = NULL;
-
- g_log_set_always_fatal (g_log_set_always_fatal (G_LOG_FATAL_MASK) |
- G_LOG_LEVEL_WARNING |
- G_LOG_LEVEL_CRITICAL);
- g_type_init_with_debug_flags (G_TYPE_DEBUG_OBJECTS | G_TYPE_DEBUG_SIGNALS);
-
- /* to test past class initialization interface setups, create the class here */
- g_type_class_ref (TEST_TYPE_OBJECT);
-
- dobject = g_object_new (DERIVED_TYPE_OBJECT, NULL);
- sigarg = g_object_new (TEST_TYPE_OBJECT, NULL);
-
- g_print ("MAIN: emit test-signal:\n");
- g_signal_emit_by_name (dobject, "test-signal", sigarg, NULL, &string);
- g_message ("signal return: \"%s\"", string);
- g_assert (strcmp (string, "<default_handler><default_handler>") == 0);
- g_free (string);
-
- g_print ("MAIN: call iface print-string on test and derived object:\n");
- iface_print_string (TEST_IFACE (sigarg), "iface-string-from-test-type");
- iface_print_string (TEST_IFACE (dobject), "iface-string-from-derived-type");
-
- g_object_unref (sigarg);
- g_object_unref (dobject);
-
- g_message ("%s done", argv[0]);
-
- return 0;
-}
projects / platform / upstream / glib.git / commitdiff