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# SPDX-License-Identifier: GPL-3.0-or-later
# Copyright (C) 2016-2020 by Nathan Lovato, Daniel Oakey, Razvan Radulescu, and contributors
import bpy
from operator import attrgetter
from .utils.doc import doc_name, doc_idname, doc_brief, doc_description
class POWER_SEQUENCER_OT_jump_to_cut(bpy.types.Operator):
"""
*brief* Jump to next/previous cut
Jump to the next or the previous cut in the edit. Unlike Blender's default tool, also
works during playback.
"""
doc = {
"name": doc_name(__qualname__),
"demo": "",
"description": doc_description(__doc__),
"shortcuts": [
(
{"type": "UP_ARROW", "value": "PRESS"},
{"direction": "RIGHT"},
"Jump to next cut or keyframe",
),
(
{"type": "DOWN_ARROW", "value": "PRESS"},
{"direction": "LEFT"},
"Jump to previous cut or keyframe",
),
],
"keymap": "Frames",
}
bl_idname = doc_idname(__qualname__)
bl_label = doc["name"]
bl_description = doc_brief(doc["description"])
bl_options = {"REGISTER", "UNDO"}
direction: bpy.props.EnumProperty(
name="Direction",
description="Jump direction, either forward or backward",
items=[
("RIGHT", "Right", "Jump forward in time"),
("LEFT", "Left", "Jump backward in time"),
],
)
@classmethod
def poll(cls, context):
return context.sequences
def execute(self, context):
frame_current = context.scene.frame_current
fcurves = []
animation_data = context.scene.animation_data
if animation_data and animation_data.action:
fcurves = animation_data.action.fcurves
frame_target = -1
# First find the closest cut, then if that sequence has an associated
# fcurve, loop through the curve's keyframes.
if self.direction == "RIGHT":
frame_target = 100_000_000
for s in context.sequences:
if s.frame_final_end <= frame_current:
continue
candidates = [frame_target, s.frame_final_end]
if s.frame_final_start > frame_current:
candidates.append(s.frame_final_start)
frame_target = min(candidates)
for f in fcurves:
if s.name not in f.data_path:
continue
for k in f.keyframe_points:
frame = k.co[0]
if frame <= frame_current:
continue
frame_target = min(frame_target, frame)
elif self.direction == "LEFT":
for s in context.sequences:
if s.frame_final_start >= frame_current:
continue
candidates = [frame_target, s.frame_final_start]
if s.frame_final_end < frame_current:
candidates.append(s.frame_final_end)
frame_target = max(candidates)
for f in fcurves:
if s.name not in f.data_path:
continue
for k in f.keyframe_points:
frame = k.co[0]
if frame >= frame_current:
continue
frame_target = max(frame_target, frame)
if frame_target > 0 and frame_target != 100_000_000:
context.scene.frame_current = int(frame_target)
return {"FINISHED"}
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