61 lines
1.8 KiB
Python
61 lines
1.8 KiB
Python
# SPDX-License-Identifier: GPL-3.0-or-later
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# Copyright (C) 2016-2020 by Nathan Lovato, Daniel Oakey, Razvan Radulescu, and contributors
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import bpy
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from bpy.app.handlers import persistent
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@persistent
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def power_sequencer_playback_speed_post(scene):
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"""
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Handler function for faster playback
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Skips keyframes after a frame change based on the playback_speed value
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It steps over frame rather than increase the playback speed smoothly,
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but it's still useful for faster editing
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"""
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# Calling this function triggers a callback to this function via the frame
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# changed handler, causing a stack overflow. We use a property to prevent
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# errors.
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if bpy.context.screen and not bpy.context.screen.is_animation_playing:
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return
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playback_speed = scene.power_sequencer.playback_speed
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target_frame = scene.frame_current
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if playback_speed == "DOUBLE":
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target_frame += 1
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elif playback_speed == "TRIPLE":
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target_frame += 2
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if target_frame != scene.frame_current:
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bpy.ops.screen.frame_offset(delta=target_frame - scene.frame_current)
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def draw_playback_speed(self, context):
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layout = self.layout
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scene = context.scene
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layout.prop(scene.power_sequencer, "playback_speed")
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def draw_ui_menu(self, context):
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layout = self.layout
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layout.menu("POWER_SEQUENCER_MT_main")
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def register_handlers():
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# Menus
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bpy.types.SEQUENCER_HT_header.append(draw_ui_menu)
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bpy.types.SEQUENCER_HT_header.append(draw_playback_speed)
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# Handlers
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bpy.app.handlers.frame_change_post.append(power_sequencer_playback_speed_post)
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def unregister_handlers():
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# Menus
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bpy.types.SEQUENCER_HT_header.remove(draw_ui_menu)
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bpy.types.SEQUENCER_HT_header.remove(draw_playback_speed)
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# Handlers
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bpy.app.handlers.frame_change_post.remove(power_sequencer_playback_speed_post)
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