7bd19f7efb
Most of these crashes happen because it is assumed that the scene will always be present even if we have an uninitialized `Editing`, which is no longer the case with #140271. - Fix crash when clicking and dragging in the scrub area by checking for valid `sequencer_scene` in `change_frame_poll` - Fix crashes when selecting menu items by disabling them in the UI until a `sequencer_scene` is present - Fix crashes running operators from the F3 menu by changing to more restrictive polls that check for `sequencer_scene` - For good measure, check before dereferencing in `channels_displayed_get`, `active_seqbase_get`, and `editing_get` Pull Request: https://projects.blender.org/blender/blender/pulls/145145
102 lines
2.4 KiB
C++
102 lines
2.4 KiB
C++
/* SPDX-FileCopyrightText: 2022 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup sequencer
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*/
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#include <cstring>
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#include "MEM_guardedalloc.h"
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#include "DNA_listBase.h"
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#include "DNA_sequence_types.h"
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#include "BLI_listbase.h"
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#include "BLI_string_utf8.h"
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#include "BLT_translation.hh"
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#include "sequencer.hh"
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#include "SEQ_channels.hh"
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#include "SEQ_sequencer.hh"
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namespace blender::seq {
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ListBase *channels_displayed_get(const Editing *ed)
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{
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return ed ? ed->current_channels() : nullptr;
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}
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void channels_displayed_set(Editing *ed, ListBase *channels)
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{
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ed->displayed_channels = channels;
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}
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void channels_ensure(ListBase *channels)
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{
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/* Allocate channels. Channel 0 is never used, but allocated to prevent off by 1 issues. */
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for (int i = 0; i < MAX_CHANNELS + 1; i++) {
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SeqTimelineChannel *channel = MEM_callocN<SeqTimelineChannel>("seq timeline channel");
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SNPRINTF_UTF8(channel->name, DATA_("Channel %d"), i);
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channel->index = i;
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BLI_addtail(channels, channel);
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}
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}
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void channels_duplicate(ListBase *channels_dst, ListBase *channels_src)
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{
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LISTBASE_FOREACH (SeqTimelineChannel *, channel, channels_src) {
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SeqTimelineChannel *channel_duplicate = static_cast<SeqTimelineChannel *>(
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MEM_dupallocN(channel));
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BLI_addtail(channels_dst, channel_duplicate);
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}
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}
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void channels_free(ListBase *channels)
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{
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LISTBASE_FOREACH_MUTABLE (SeqTimelineChannel *, channel, channels) {
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MEM_freeN(channel);
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}
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}
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SeqTimelineChannel *channel_get_by_index(const ListBase *channels, const int channel_index)
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{
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return static_cast<SeqTimelineChannel *>(BLI_findlink(channels, channel_index));
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}
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char *channel_name_get(ListBase *channels, const int channel_index)
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{
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SeqTimelineChannel *channel = channel_get_by_index(channels, channel_index);
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return channel->name;
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}
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int channel_index_get(const SeqTimelineChannel *channel)
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{
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return channel->index;
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}
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bool channel_is_locked(const SeqTimelineChannel *channel)
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{
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return (channel->flag & SEQ_CHANNEL_LOCK) != 0;
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}
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bool channel_is_muted(const SeqTimelineChannel *channel)
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{
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return (channel->flag & SEQ_CHANNEL_MUTE) != 0;
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}
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ListBase *get_channels_by_strip(Editing *ed, const Strip *strip)
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{
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Strip *strip_owner = lookup_meta_by_strip(ed, strip);
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if (strip_owner != nullptr) {
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return &strip_owner->channels;
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}
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return &ed->channels;
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}
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} // namespace blender::seq
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