Richard Antalik
d4a763d363
Caused by clamping handle translation to strip bounds in functions `SEQ_time_*_handle_frame_set()` to prevent strip ending in invalid state. Issue happens when meta strip is moved so quickly, such that immediate offset is greater than strip length. Currently meta strip bounds are updated when any contained strip changes its position, but this update always preserves meta strip position. Transforming meta strip is not possible directly and all contained strips are moved instead. Therefore this is 2-step process and fix needs to be applied on update function and on translation function. Inline offset handling without clamping in function `SEQ_time_update_meta_strip_range()`. Add new function `seq_time_translate_handles()` to move both handles at once in `SEQ_transform_translate_sequence()`.
48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2004 Blender Foundation. All rights reserved. */
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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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#ifdef __cplusplus
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extern "C" {
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#endif
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struct ListBase;
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struct Scene;
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struct Sequence;
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struct SeqCollection;
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float seq_give_frame_index(const struct Scene *scene, struct Sequence *seq, float timeline_frame);
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void seq_update_sound_bounds_recursive(const struct Scene *scene, struct Sequence *metaseq);
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/* Describes gap between strips in timeline. */
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typedef struct GapInfo {
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int gap_start_frame; /* Start frame of the gap. */
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int gap_length; /* Length of the gap. */
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bool gap_exists; /* False if there are no gaps. */
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} GapInfo;
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/**
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* Find first gap between strips after initial_frame and describe it by filling data of r_gap_info
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*
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* \param scene: Scene in which strips are located.
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* \param seqbase: ListBase in which strips are located.
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* \param initial_frame: frame on timeline from where gaps are searched for.
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* \param r_gap_info: data structure describing gap, that will be filled in by this function.
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*/
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void seq_time_gap_info_get(const struct Scene *scene,
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struct ListBase *seqbase,
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int initial_frame,
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struct GapInfo *r_gap_info);
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void seq_time_effect_range_set(const struct Scene *scene, Sequence *seq);
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void seq_time_update_effects_strip_range(const struct Scene *scene, struct SeqCollection *effects);
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void seq_time_translate_handles(const struct Scene *scene, struct Sequence *seq, const int offset);
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#ifdef __cplusplus
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}
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#endif
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