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/*
* ion/ioncore/activity.c
*
* Copyright (c) Tuomo Valkonen 1999-2007.
*
* See the included file LICENSE for details.
*/
#include <libtu/setparam.h>
#include <libtu/minmax.h>
#include <libtu/objlist.h>
#include "common.h"
#include "global.h"
#include "region.h"
#include "activity.h"
static ObjList *actlist=NULL;
void region_mark_mgd_activity(WRegion *mgr)
{
bool mgr_marked;
if(mgr==NULL)
return;
mgr_marked=region_is_activity_r(mgr);
mgr->mgd_activity++;
if(!mgr_marked){
region_notify_change(mgr, ioncore_g.notifies.sub_activity);
region_mark_mgd_activity(REGION_MANAGER(mgr));
}
}
void region_clear_mgd_activity(WRegion *mgr)
{
if(mgr==NULL)
return;
mgr->mgd_activity=MAXOF(0, mgr->mgd_activity-1);
if(!region_is_activity_r(mgr)){
region_notify_change(mgr, ioncore_g.notifies.sub_activity);
region_clear_mgd_activity(REGION_MANAGER(mgr));
}
}
static void propagate_activity(WRegion *reg)
{
region_mark_mgd_activity(REGION_MANAGER(reg));
}
static void propagate_clear(WRegion *reg)
{
region_clear_mgd_activity(REGION_MANAGER(reg));
}
bool region_set_activity(WRegion *reg, int sp)
{
bool set=(reg->flags®ION_ACTIVITY);
bool nset=libtu_do_setparam(sp, set);
if(!XOR(set, nset))
return nset;
if(nset){
if(REGION_IS_ACTIVE(reg))
return FALSE;
reg->flags|=REGION_ACTIVITY;
objlist_insert_last(&actlist, (Obj*)reg);
if(reg->mgd_activity==0)
propagate_activity(reg);
}else{
reg->flags&=~REGION_ACTIVITY;
objlist_remove(&actlist, (Obj*)reg);
if(reg->mgd_activity==0)
propagate_clear(reg);
}
region_notify_change(reg, ioncore_g.notifies.activity);
return nset;
}
/*EXTL_DOC
* Set activity flag of \var{reg}. The \var{how} parameter most be
* one of (set/unset/toggle).
*/
EXTL_EXPORT_AS(WRegion, set_activity)
bool region_set_activity_extl(WRegion *reg, const char *how)
{
return region_set_activity(reg, libtu_string_to_setparam(how));
}
/*EXTL_DOC
* Is activity notification set on \var{reg}.
*/
EXTL_SAFE
EXTL_EXPORT_MEMBER
bool region_is_activity(WRegion *reg)
{
return (reg->flags®ION_ACTIVITY);
}
bool region_is_activity_r(WRegion *reg)
{
return (reg->flags®ION_ACTIVITY || reg->mgd_activity!=0);
}
/*EXTL_DOC
* Iterate over activity list until \var{iterfn} returns \code{false}.
* The function itself returns \code{true} if it reaches the end of list
* without this happening.
*/
EXTL_SAFE
EXTL_EXPORT
bool ioncore_activity_i(ExtlFn iterfn)
{
return extl_iter_objlist(iterfn, actlist);
}
/*EXTL_DOC
* Return first regio non activity list.
*/
EXTL_SAFE
EXTL_EXPORT
WRegion *ioncore_activity_first()
{
if(actlist==NULL)
return NULL;
return (WRegion*)actlist->watch.obj;
}
ObjList *ioncore_activity_list()
{
return actlist;
}
/*EXTL_DOC
* Go to first region on activity list.
*/
EXTL_EXPORT
bool ioncore_goto_activity()
{
WRegion *reg=ioncore_activity_first();
if(reg!=NULL)
return region_goto(reg);
else
return FALSE;
}
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