715129bf5b
Adds the ability to connect and disconnect strips in the VSE.
- Connected strips have an icon indicating their status, and attempting
to select one connected strip selects all other connected strips in
that chain.
- If the user attempts to connect a strip that is already connected to
other strips, that strip will disconnect itself from others before
connecting to new strips.
- Preview selection also works in bulk if multiple video strips are
connected together in the timeline.
- When adding new strips from the Add menu or the File Browser, strips
from the same file are connected by default. There's an option to
turn this off in Editing > Video Sequencer user preferences.
- It is possible to individually tweak strips/handles and ignore
connections with Alt+Click.
- This shortcut overrides the old keymap item for "Linked Handle"
selection. The property still exists if people want to use that
shortcut for its old purpose.
- To make sure that connections remain valid even after duplication,
I've added a condition to `seq_new_fix_links_recursive` that also
updates connections using the `seq->tmp` var. (A note -- I've updated
the comment for this field in `DNA_sequence_types.h` because the var
is only used for duplication now. It was once present in
`select_more_less_seq__internal` to be used for linked selection but
is gone now).
- There are also functions to cut one-way links and make sure that
all strips are bidirectionally connected after duplicating.
Pull Request: https://projects.blender.org/blender/blender/pulls/124333
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
/* SPDX-FileCopyrightText: 2024 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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/** \file
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* \ingroup sequencer
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*/
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#include "BLI_vector_set.hh"
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struct Sequence;
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struct ListBase;
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void SEQ_connections_duplicate(ListBase *connections_dst, ListBase *connections_src);
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/**
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* Disconnect the strip(s) from any connections with other strips. This function also
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* frees the allocated memory as necessary. Returns false if any of the strips were not already
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* connected.
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*/
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bool SEQ_disconnect(Sequence *seq);
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bool SEQ_disconnect(blender::VectorSet<Sequence *> &seq_list);
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/**
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* Ensure that the strip has only bidirectional connections (expected behavior).
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*/
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void SEQ_cut_one_way_connections(Sequence *seq);
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/**
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* Connect strips so that they may be selected together. Any connections the
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* strips already have will be severed before reconnection.
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*/
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void SEQ_connect(Sequence *seq1, Sequence *seq2);
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void SEQ_connect(blender::VectorSet<Sequence *> &seq_list);
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/**
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* Returns a list of strips that the `seq` is connected to.
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* NOTE: This does not include `seq` itself.
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* This list is empty if `seq` is not connected.
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*/
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blender::VectorSet<Sequence *> SEQ_get_connected_strips(const Sequence *seq);
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/**
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* Check whether a strip has any connections.
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*/
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bool SEQ_is_strip_connected(const Sequence *seq);
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/**
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* Check whether the list of strips are a single connection "group", that is, they are all
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* connected to each other and there are no outside connections.
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*/
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bool SEQ_are_strips_connected_together(blender::VectorSet<Sequence *> &seq_list);
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