mirror of
https://github.com/brl/mutter.git
synced 2024-12-24 12:02:04 +00:00
cb114f43ab
This adds an internal CoglCallbackList type which is just a GSList of of function pointers along with a data pointer to form a closure. There are functions to add and remove items and to invoke the list of functions. This could be used in a number of places in Cogl.
108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2010 Intel Corporation.
|
|
*
|
|
* 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.
|
|
*
|
|
* Authors:
|
|
* Neil Roberts <neil@linux.intel.com>
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "cogl.h"
|
|
#include "cogl-callback-list.h"
|
|
|
|
typedef struct _CoglCallbackListClosure
|
|
{
|
|
CoglCallbackListFunc func;
|
|
void *user_data;
|
|
} CoglCallbackListClosure;
|
|
|
|
void
|
|
_cogl_callback_list_init (CoglCallbackList *list)
|
|
{
|
|
list->funcs = NULL;
|
|
}
|
|
|
|
void
|
|
_cogl_callback_list_destroy (CoglCallbackList *list)
|
|
{
|
|
while (list->funcs)
|
|
{
|
|
CoglCallbackListClosure *closure = list->funcs->data;
|
|
|
|
_cogl_callback_list_remove (list, closure->func, closure->user_data);
|
|
}
|
|
}
|
|
|
|
void
|
|
_cogl_callback_list_add (CoglCallbackList *list,
|
|
CoglCallbackListFunc func,
|
|
void *user_data)
|
|
{
|
|
CoglCallbackListClosure *closure = g_slice_new (CoglCallbackListClosure);
|
|
|
|
closure->func = func;
|
|
closure->user_data = user_data;
|
|
list->funcs = g_slist_prepend (list->funcs, closure);
|
|
}
|
|
|
|
void
|
|
_cogl_callback_list_remove (CoglCallbackList *list,
|
|
CoglCallbackListFunc func,
|
|
void *user_data)
|
|
{
|
|
GSList *prev = NULL, *l;
|
|
|
|
for (l = list->funcs; l; l = l->next)
|
|
{
|
|
CoglCallbackListClosure *closure = l->data;
|
|
|
|
if (closure->func == func && closure->user_data == user_data)
|
|
{
|
|
g_slice_free (CoglCallbackListClosure, closure);
|
|
|
|
if (prev)
|
|
prev->next = g_slist_delete_link (prev->next, l);
|
|
else
|
|
list->funcs = g_slist_delete_link (list->funcs, l);
|
|
|
|
break;
|
|
}
|
|
|
|
prev = l;
|
|
}
|
|
}
|
|
|
|
void
|
|
_cogl_callback_list_invoke (CoglCallbackList *list)
|
|
{
|
|
GSList *l;
|
|
|
|
for (l = list->funcs; l; l = l->next)
|
|
{
|
|
CoglCallbackListClosure *closure = l->data;
|
|
|
|
closure->func (closure->user_data);
|
|
}
|
|
}
|