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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 .utils.functions import find_neighboring_markers
from .utils.doc import doc_name, doc_idname, doc_brief, doc_description
class POWER_SEQUENCER_OT_set_preview_between_markers(bpy.types.Operator):
"""
Set the timeline's preview range using the 2 markers closest to the time cursor
"""
doc = {
"name": doc_name(__qualname__),
"demo": "",
"description": doc_description(__doc__),
"shortcuts": [],
"keymap": "Sequencer",
}
bl_idname = doc_idname(__qualname__)
bl_label = doc["name"]
bl_description = doc_brief(doc["description"])
bl_options = {"REGISTER", "UNDO"}
@classmethod
def poll(cls, context):
return context.scene.sequence_editor
def invoke(self, context, event):
if not context.scene.timeline_markers:
self.report({"ERROR_INVALID_INPUT"}, "There are no markers. Operation cancelled.")
return {"CANCELLED"}
frame = context.scene.frame_current
previous_marker, next_marker = find_neighboring_markers(context, frame)
if not (previous_marker and next_marker):
self.report({"ERROR_INVALID_INPUT"}, "There are no markers. Operation cancelled.")
return {"CANCELLED"}
frame_start = previous_marker.frame if previous_marker else 0
if next_marker:
frame_end = next_marker.frame
else:
from operator import attrgetter
frame_end = max(
context.scene.sequence_editor.sequences, key=attrgetter("frame_final_end")
).frame_final_end
from .utils.functions import set_preview_range
set_preview_range(context, frame_start, frame_end)
return {"FINISHED"}
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