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# SPDX-License-Identifier: GPL-3.0-or-later
# Copyright 2016-2020 by Nathan Lovato, Daniel Oakey, Razvan Radulescu, and contributors
# This file is part of Power Sequencer.
from operator import attrgetter
import bpy
from .utils.doc import doc_brief, doc_description, doc_idname, doc_name
from .utils.functions import find_strips_in_range, move_selection, trim_strips
class POWER_SEQUENCER_OT_channel_offset(bpy.types.Operator):
"""
Move selected strip to the nearest open channel above/down
"""
doc = {
"name": doc_name(__qualname__),
"demo": "",
"description": doc_description(__doc__),
"shortcuts": [
(
{"type": "UP_ARROW", "value": "PRESS", "alt": True},
{"direction": "up", "trim_target_channel": False},
"Move to Open Channel Above",
),
(
{"type": "UP_ARROW", "value": "PRESS", "ctrl": True, "alt": True},
{"direction": "up", "trim_target_channel": True},
"Move to Channel Above and Trim",
),
(
{"type": "DOWN_ARROW", "value": "PRESS", "alt": True},
{"direction": "down", "trim_target_channel": False},
"Move to Open Channel Below",
),
(
{"type": "DOWN_ARROW", "value": "PRESS", "ctrl": True, "alt": True},
{"direction": "down", "trim_target_channel": True},
"Move to Channel Below and Trim",
),
],
"keymap": "Sequencer",
}
bl_idname = doc_idname(__qualname__)
bl_label = doc["name"]
bl_description = doc_brief(doc["description"])
bl_options = {"REGISTER", "UNDO"}
direction: bpy.props.EnumProperty(
items=[
("up", "up", "Move the selection 1 channel up"),
("down", "down", "Move the selection 1 channel down"),
],
name="Direction",
description="Move the sequences up or down",
default="up",
)
trim_target_channel: bpy.props.BoolProperty(
name="Trim strips",
description="Trim strips to make space in the target channel",
default=False,
)
keep_selection_offset: bpy.props.BoolProperty(
name="Keep selection offset",
description="The selected strips preserve their relative positions",
default=True,
)
@classmethod
def poll(cls, context):
return context.selected_sequences
def execute(self, context):
max_channel = 32
min_channel = 1
if self.direction == "up":
channel_offset = +1
limit_channel = max_channel
comparison_function = min
if self.direction == "down":
channel_offset = -1
limit_channel = min_channel
comparison_function = max
selection = [s for s in context.selected_sequences if not s.lock]
if not selection:
return {"FINISHED"}
sequences = sorted(selection, key=attrgetter("channel", "frame_final_start"))
if self.direction == "up":
sequences = [s for s in reversed(sequences)]
head = sequences[0]
if not self.keep_selection_offset or (
head.channel != limit_channel and self.keep_selection_offset
):
for s in sequences:
if self.trim_target_channel:
channel_trim = s.channel + channel_offset
strips_in_trim_channel = [
sequence
for sequence in context.sequences
if (sequence.channel == channel_trim)
]
if strips_in_trim_channel:
to_delete, to_trim = find_strips_in_range(
s.frame_final_start, s.frame_final_end, strips_in_trim_channel
)
trim_strips(
context, s.frame_final_start, s.frame_final_end, to_trim, to_delete
)
if not self.keep_selection_offset:
s.channel = comparison_function(limit_channel, s.channel + channel_offset)
if s.channel == limit_channel:
move_selection(context, [s], 0, 0)
if self.keep_selection_offset:
start_frame = head.frame_final_start
x_difference = 0
while not head.channel == limit_channel:
move_selection(context, sequences, -x_difference, channel_offset)
x_difference = head.frame_final_start - start_frame
if x_difference == 0:
break
return {"FINISHED"}
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