From 277fa2f441f4ab2c00e7f329ba34a3466956647c Mon Sep 17 00:00:00 2001 From: Richard Antalik Date: Mon, 4 Apr 2022 12:52:48 +0200 Subject: VSE: Add channel headers This patch adds channel region to VSE timeline area for drawing channel headers. It is synchronizedwith timeline region. 3 basic features are implemented - channel visibility, locking and name. Channel data is stored in `SeqTimelineChannel` which can be top-level owned by `Editing`, or it is owned by meta strip to support nesting. Strip properties are completely independent and channel properties are applied on top of particular strip property, thus overriding it. Implementation is separate from channel regions in other editors. This is mainly because style and topology is quite different in VSE. But also code seems to be much more readable this way. Currently channels use functions similar to VSE timeline to draw background to provide illusion of transparency, but only for background and sfra/efra regions. Great portion of this patch is change from using strip visibility and lock status to include channel state - this is facilitated by functions `SEQ_transform_is_locked` and `SEQ_render_is_muted` Originally this included changes in D14263, but patch was split for easier review. Reviewed By: fsiddi, Severin Differential Revision: https://developer.blender.org/D13836 --- source/blender/sequencer/SEQ_channels.h | 34 +++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 source/blender/sequencer/SEQ_channels.h (limited to 'source/blender/sequencer/SEQ_channels.h') diff --git a/source/blender/sequencer/SEQ_channels.h b/source/blender/sequencer/SEQ_channels.h new file mode 100644 index 00000000000..1d87875fb26 --- /dev/null +++ b/source/blender/sequencer/SEQ_channels.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later + * Copyright 2022 Blender Foundation. All rights reserved. */ + +#pragma once + +/** \file + * \ingroup sequencer + */ + +#ifdef __cplusplus +extern "C" { +#endif + +struct Editing; +struct ListBase; +struct Scene; +struct SeqTimelineChannel; + +struct ListBase *SEQ_channels_displayed_get(struct Editing *ed); +void SEQ_channels_displayed_set(struct Editing *ed, struct ListBase *channels); +void SEQ_channels_ensure(struct ListBase *channels); +void SEQ_channels_duplicate(struct ListBase *channels_dst, struct ListBase *channels_src); +void SEQ_channels_free(struct ListBase *channels); + +struct SeqTimelineChannel *SEQ_channel_get_by_index(const struct ListBase *channels, + const int channel_index); +char *SEQ_channel_name_get(struct ListBase *channels, const int channel_index); +bool SEQ_channel_is_locked(const struct SeqTimelineChannel *channel); +bool SEQ_channel_is_muted(const struct SeqTimelineChannel *channel); +int SEQ_channel_index_get(const struct SeqTimelineChannel *channel); + +#ifdef __cplusplus +} +#endif -- cgit v1.2.3