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/* Dia -- an diagram creation/manipulation program
* Copyright (C) 1998 Alexander Larsson
*
* List of "dynamic" (animated) objects, and their refresh rates
* Copyright (C) 2002 Cyrille Chépélov
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <glib.h>
#include <dynamic_obj.h>
typedef struct {
DiaObject* obj;
guint timeout;
} DynobjRec;
static GList* dyn_obj_list = NULL;
void dynobj_list_add_object(DiaObject* obj, guint timeout) {
DynobjRec *dor = g_new(DynobjRec,1);
dor->obj = obj;
dor->timeout = timeout;
dyn_obj_list = g_list_append(dyn_obj_list,dor);
}
static gint dor_found(gconstpointer data, gconstpointer user_data) {
const DynobjRec* dor = (const DynobjRec*)data;
const DiaObject* obj = (const DiaObject*)user_data;
if ((!dor) || (!obj)) return 1;
if (dor->obj != obj) return 1;
return 0;
}
void dynobj_list_remove_object(DiaObject* obj) {
GList* item = g_list_find_custom(dyn_obj_list,obj,dor_found);
if (item) {
DynobjRec* dor = item->data;
dyn_obj_list = g_list_remove(dyn_obj_list,dor);
g_free(dor);
}
}
typedef struct {
ObjectDynobjFunc odf;
gpointer data;
} TrampolineData;
static void foreach_trampoline(gpointer data, gpointer user_data) {
TrampolineData* td = (TrampolineData*)user_data;
DynobjRec* dor = (DynobjRec*)data;
td->odf(dor->obj,td->data);
}
void dynobj_list_foreach(ObjectDynobjFunc odf, gpointer data) {
TrampolineData td;
td.odf = odf;
td.data = data;
g_list_foreach(dyn_obj_list,foreach_trampoline,&td);
}
static void accum_timeout(gpointer data, gpointer user_data) {
guint* accum = (guint*)user_data;
DynobjRec* dor = (DynobjRec*)data;
if (!dor) return;
*accum = MAX(*accum,dor->timeout);
}
guint dynobj_list_get_dynobj_rate(void) {
guint timeout = 250;
if (dyn_obj_list)
g_list_foreach(dyn_obj_list,accum_timeout,&timeout);
else
timeout = 0; /* no objet to refresh, no timeout */
return timeout;
}
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