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Rename GstInterface to GstImplementsInterface (see bug #122423)

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Original commit message from CVS:
Rename GstInterface to GstImplementsInterface (see bug #122423)
This commit is contained in:
Ronald S. Bultje 2003-12-07 12:08:44 +00:00
parent 7918a27650
commit 103c22dee3
2 changed files with 62 additions and 57 deletions
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54
gst/gstinterface.c
View file

@ -28,19 +28,21 @@
#include "gstinterface.h" #include "gstinterface.h"
#include "gstlog.h" #include "gstlog.h"
static void gst_interface_class_init (GstInterfaceClass *ifklass); static void
static gboolean gst_interface_supported_default (GstInterface *iface, gst_implements_interface_class_init (GstImplementsInterfaceClass *ifklass);
GType iface_type); static gboolean
gst_implements_interface_supported_default (GstImplementsInterface *iface,
GType iface_type);
GType GType
gst_interface_get_type (void) gst_implements_interface_get_type (void)
{ {
static GType gst_interface_type = 0; static GType gst_interface_type = 0;
if (!gst_interface_type) { if (!gst_interface_type) {
static const GTypeInfo gst_interface_info = { static const GTypeInfo gst_interface_info = {
sizeof (GstInterfaceClass), sizeof (GstImplementsInterfaceClass),
(GBaseInitFunc) gst_interface_class_init, (GBaseInitFunc) gst_implements_interface_class_init,
NULL, NULL,
NULL, NULL,
NULL, NULL,
@ -52,7 +54,7 @@ gst_interface_get_type (void)
}; };
gst_interface_type = g_type_register_static (G_TYPE_INTERFACE, gst_interface_type = g_type_register_static (G_TYPE_INTERFACE,
"GstInterface", "GstImplementsInterface",
&gst_interface_info, 0); &gst_interface_info, 0);
g_type_interface_add_prerequisite (gst_interface_type, g_type_interface_add_prerequisite (gst_interface_type,
@ -63,14 +65,14 @@ gst_interface_get_type (void)
} }
static void static void
gst_interface_class_init (GstInterfaceClass *klass) gst_implements_interface_class_init (GstImplementsInterfaceClass *klass)
{ {
klass->supported = gst_interface_supported_default; klass->supported = gst_implements_interface_supported_default;
} }
static gboolean static gboolean
gst_interface_supported_default (GstInterface *interface, gst_implements_interface_supported_default (GstImplementsInterface *interface,
GType iface_type) GType iface_type)
{ {
/* Well, if someone didn't set the virtual function, /* Well, if someone didn't set the virtual function,
* then something is clearly wrong. So big no-no here */ * then something is clearly wrong. So big no-no here */
@ -93,12 +95,12 @@ gst_element_implements_interface (GstElement *element,
{ {
if (G_TYPE_CHECK_INSTANCE_TYPE (G_OBJECT (element), if (G_TYPE_CHECK_INSTANCE_TYPE (G_OBJECT (element),
iface_type)) { iface_type)) {
GstInterface *iface; GstImplementsInterface *iface;
GstInterfaceClass *ifclass; GstImplementsInterfaceClass *ifclass;
iface = G_TYPE_CHECK_INSTANCE_CAST (G_OBJECT (element), iface = G_TYPE_CHECK_INSTANCE_CAST (G_OBJECT (element),
iface_type, GstInterface); iface_type, GstImplementsInterface);
ifclass = GST_INTERFACE_GET_CLASS (iface); ifclass = GST_IMPLEMENTS_INTERFACE_GET_CLASS (iface);
if (ifclass->supported != NULL && if (ifclass->supported != NULL &&
ifclass->supported (iface, iface_type) == TRUE) { ifclass->supported (iface, iface_type) == TRUE) {
@ -110,7 +112,7 @@ gst_element_implements_interface (GstElement *element,
} }
/** /**
* gst_interface_cast: * gst_implements_interface_cast:
* @from: the object (any sort) from which to cast to the interface * @from: the object (any sort) from which to cast to the interface
* @type: the interface type to cast to * @type: the interface type to cast to
* *
@ -118,15 +120,15 @@ gst_element_implements_interface (GstElement *element,
* interface is supported for this specific instance. * interface is supported for this specific instance.
*/ */
GstInterface * gpointer
gst_interface_cast (gpointer from, gst_implements_interface_cast (gpointer from,
GType iface_type) GType iface_type)
{ {
GstInterface *iface; GstImplementsInterface *iface;
/* check cast, give warning+fail if it's invalid */ /* check cast, give warning+fail if it's invalid */
if (!(iface = G_TYPE_CHECK_INSTANCE_CAST (from, iface_type, if (!(iface = G_TYPE_CHECK_INSTANCE_CAST (from, iface_type,
GstInterface))) { GstImplementsInterface))) {
return NULL; return NULL;
} }
@ -142,7 +144,7 @@ gst_interface_cast (gpointer from,
} }
/** /**
* gst_interface_cast: * gst_implements_interface_cast:
* @from: the object (any sort) from which to check from for the interface * @from: the object (any sort) from which to check from for the interface
* @type: the interface type to check for * @type: the interface type to check for
* *
@ -151,17 +153,17 @@ gst_interface_cast (gpointer from,
*/ */
gboolean gboolean
gst_interface_check (gpointer from, gst_implements_interface_check (gpointer from,
GType type) GType type)
{ {
GstInterface *iface; GstImplementsInterface *iface;
/* check cast, return FALSE if it fails, don't give a warning... */ /* check cast, return FALSE if it fails, don't give a warning... */
if (!G_TYPE_CHECK_INSTANCE_TYPE (from, type)) { if (!G_TYPE_CHECK_INSTANCE_TYPE (from, type)) {
return FALSE; return FALSE;
} }
iface = G_TYPE_CHECK_INSTANCE_CAST (from, type, GstInterface); iface = G_TYPE_CHECK_INSTANCE_CAST (from, type, GstImplementsInterface);
/* now, if we're an element (or derivative), is this thing /* now, if we're an element (or derivative), is this thing
* actually implemented for real? */ * actually implemented for real? */

65
gst/gstinterface.h
View file

@ -20,57 +20,60 @@
* Boston, MA 02111-1307, USA. * Boston, MA 02111-1307, USA.
*/ */
#ifndef __GST_INTERFACE_H__ #ifndef __GST_IMPLEMENTS_INTERFACE_H__
#define __GST_INTERFACE_H__ #define __GST_IMPLEMENTS_INTERFACE_H__
#include <gst/gstelement.h> #include <gst/gstelement.h>
G_BEGIN_DECLS G_BEGIN_DECLS
#define GST_TYPE_INTERFACE \ #define GST_TYPE_IMPLEMENTS_INTERFACE \
(gst_interface_get_type ()) (gst_implements_interface_get_type ())
#define GST_INTERFACE(obj) \ #define GST_IMPLEMENTS_INTERFACE(obj) \
(GST_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_INTERFACE, GstInterface)) (GST_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_IMPLEMENTS_INTERFACE, \
#define GST_INTERFACE_CLASS(klass) \ GstImplementsInterface))
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_INTERFACE, GstInterfaceClass)) #define GST_IMPLEMENTS_INTERFACE_CLASS(klass) \
#define GST_IS_INTERFACE(obj) \ (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_IMPLEMENTS_INTERFACE, \
(GST_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_INTERFACE)) GstImplementsInterfaceClass))
#define GST_IS_INTERFACE_CLASS(klass) \ #define GST_IS_IMPLEMENTS_INTERFACE(obj) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_INTERFACE)) (GST_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_IMPLEMENTS_INTERFACE))
#define GST_INTERFACE_GET_CLASS(inst) \ #define GST_IS_IMPLEMENTS_INTERFACE_CLASS(klass) \
(G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_INTERFACE, GstInterfaceClass)) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_IMPLEMENTS_INTERFACE))
#define GST_IMPLEMENTS_INTERFACE_GET_CLASS(inst) \
(G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_IMPLEMENTS_INTERFACE, \
GstImplementsInterfaceClass))
typedef struct _GstInterface GstInterface; typedef struct _GstImplementsInterface GstImplementsInterface;
/* This small extra virtual function is here to provide an /* This small extra virtual function is here to provide an
* interface functionality on a per-instance basis rather * interface functionality on a per-instance basis rather
* than a per-class basis, which is the case for glib. * than a per-class basis, which is the case for glib.
*/ */
typedef struct _GstInterfaceClass { typedef struct _GstImplementsInterfaceClass {
GTypeInterface parent; GTypeInterface parent;
/* virtual functions */ /* virtual functions */
gboolean (* supported) (GstInterface *iface, gboolean (* supported) (GstImplementsInterface *iface,
GType iface_type); GType iface_type);
GST_CLASS_PADDING GST_CLASS_PADDING
} GstInterfaceClass; } GstImplementsInterfaceClass;
#define GST_INTERFACE_CHECK_INSTANCE_CAST(obj, type, cast_t) \ #define GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_CAST(obj, type, cast_t) \
((cast_t *) gst_interface_cast ((obj), (type))) ((cast_t *) gst_implements_interface_cast ((obj), (type)))
#define GST_INTERFACE_CHECK_INSTANCE_TYPE(obj, type) \ #define GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_TYPE(obj, type) \
(gst_interface_check ((obj), (type))) (gst_implements_interface_check ((obj), (type)))
GType gst_interface_get_type (void); GType gst_implements_interface_get_type (void);
/* wrapper functions to check for functionality implementation */ /* wrapper functions to check for functionality implementation */
gboolean gst_element_implements_interface(GstElement *element, gboolean gst_element_implements_interface (GstElement *element,
GType iface_type); GType iface_type);
GstInterface * gst_interface_cast (gpointer from, gpointer gst_implements_interface_cast (gpointer from,
GType type); GType type);
gboolean gst_interface_check (gpointer from, gboolean gst_implements_interface_check (gpointer from,
GType type); GType type);
G_END_DECLS G_END_DECLS
#endif /* __GST_INTERFACE_H__ */ #endif /* __GST_IMPLEMENTS_INTERFACE_H__ */