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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2022 Blender Foundation. All rights reserved. */
/** \file
* \ingroup sequencer
*/
#include <string.h>
#include "MEM_guardedalloc.h"
#include "DNA_listBase.h"
#include "DNA_scene_types.h"
#include "DNA_sequence_types.h"
#include "BLI_blenlib.h"
#include "SEQ_channels.h"
#include "SEQ_iterator.h"
#include "SEQ_relations.h"
#include "SEQ_sequencer.h"
ListBase *SEQ_channels_displayed_get(Editing *ed)
{
return ed->displayed_channels;
}
void SEQ_channels_displayed_set(Editing *ed, ListBase *channels)
{
ed->displayed_channels = channels;
}
void SEQ_channels_ensure(ListBase *channels)
{
/* Allocate channels. Channel 0 is never used, but allocated to prevent off by 1 issues. */
for (int i = 0; i < MAXSEQ + 1; i++) {
SeqTimelineChannel *channel = MEM_callocN(sizeof(SeqTimelineChannel), "seq timeline channel");
BLI_snprintf(channel->name, sizeof(channel->name), "Channel %d", i);
channel->index = i;
BLI_addtail(channels, channel);
}
}
void SEQ_channels_duplicate(ListBase *channels_dst, ListBase *channels_src)
{
LISTBASE_FOREACH (SeqTimelineChannel *, channel, channels_src) {
SeqTimelineChannel *channel_duplicate = MEM_dupallocN(channel);
BLI_addtail(channels_dst, channel_duplicate);
}
}
void SEQ_channels_free(ListBase *channels)
{
LISTBASE_FOREACH_MUTABLE (SeqTimelineChannel *, channel, channels) {
MEM_freeN(channel);
}
}
SeqTimelineChannel *SEQ_channel_get_by_index(const ListBase *channels, const int channel_index)
{
return BLI_findlink(channels, channel_index);
}
char *SEQ_channel_name_get(ListBase *channels, const int channel_index)
{
SeqTimelineChannel *channel = SEQ_channel_get_by_index(channels, channel_index);
return channel->name;
}
int SEQ_channel_index_get(const SeqTimelineChannel *channel)
{
return channel->index;
}
bool SEQ_channel_is_locked(const SeqTimelineChannel *channel)
{
return (channel->flag & SEQ_CHANNEL_LOCK) != 0;
}
bool SEQ_channel_is_muted(const SeqTimelineChannel *channel)
{
return (channel->flag & SEQ_CHANNEL_MUTE) != 0;
}
ListBase *SEQ_get_channels_by_seq(ListBase *seqbase, ListBase *channels, const Sequence *seq)
{
ListBase *lb = NULL;
LISTBASE_FOREACH (Sequence *, iseq, seqbase) {
if (seq == iseq) {
return channels;
}
if ((lb = SEQ_get_channels_by_seq(&iseq->seqbase, &iseq->channels, seq))) {
return lb;
}
}
return NULL;
}
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