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/* -*- Mode: C -*- */
 FILE: icalspanlist.h
 CREATOR: eric 21 Aug 2000

 $Id: icalspanlist.h,v 1.8 2008-01-02 20:07:42 dothebart Exp $
 $Locker:  $

 (C) COPYRIGHT 2000, Eric Busboom, http://www.softwarestudio.org

 This program is free software; you can redistribute it and/or modify
 it under the terms of either: 

    The LGPL as published by the Free Software Foundation, version
    2.1, available at: http://www.fsf.org/copyleft/lesser.html


    The Mozilla Public License Version 1.0. You may obtain a copy of
    the License at http://www.mozilla.org/MPL/


#include <libical/ical.h>
#include <icalset.h>

/** @file icalspanlist.h
 *  @brief Code that supports collections of free/busy spans of time

typedef struct icalspanlist_impl icalspanlist;

/** @brief Constructor
 * Make a free list from a set of component. Start and end should be in UTC 

icalspanlist* icalspanlist_new(icalset *set, 
                        struct icaltimetype start,
                        struct icaltimetype end);

/** @brief Destructor
void icalspanlist_free(icalspanlist* spl);

/* Unimplemented functions */
icalcomponent* icalspanlist_make_free_list(icalspanlist* sl);
icalcomponent* icalspanlist_make_busy_list(icalspanlist* sl);

/** Get first next free time after time t. all times are in UTC. */
struct icalperiodtype icalspanlist_next_free_time(icalspanlist* sl,
                                    struct icaltimetype t);
/** Get first next busy time after time t. all times are in UTC. */
struct icalperiodtype icalspanlist_next_busy_time(icalspanlist* sl,
                                    struct icaltimetype t);

void icalspanlist_dump(icalspanlist* s);

/** @brief Return a valid VFREEBUSY component for this span */
icalcomponent *icalspanlist_as_vfreebusy(icalspanlist* s_in,
                               const char* organizer,
                               const char* attendee);

/** @brief Return an integer matrix of total events per delta_t timespan */
int *icalspanlist_as_freebusy_matrix(icalspanlist* span, int delta_t);

/** @brief Construct an icalspanlist from a VFREEBUSY component */
icalspanlist *icalspanlist_from_vfreebusy(icalcomponent* c);


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