def nla_w_pre(self, context):
layout = self.layout
basic_pre(self, context)
layout.separator()
layout.operator('zpy.select_from_strips')
layout.separator()
layout.operator('anim.channels_clean_empty')
layout.operator('nla.action_sync_length',
text='Sync Action length Now',
icon='FILE_REFRESH').active = False
for (ob, strips) in Get.strips_nla(context):
for item in strips:
icon = ['CHECKBOX_DEHLT',
'CHECKBOX_HLT'][item.strip.use_sync_length]
break
else:
continue
break
else:
icon = 'NONE'
layout.operator('nla.toggle_action_sync', icon=icon)
layout.separator()
def preview_nla(self, context):
scn = context.scene
start = end = None
# Set preview range using snapping (from frame_step operator)
prefs = scn.step_frames
stepped = prefs.on_steps
frame_step = prefs.frame_step
strips_nla = Get.strips_nla(context)
for (obj, strips) in strips_nla:
for item in strips:
strip = item.strip
# Scale update start value
frame_start = int(strip.frame_start)
if stepped:
while (frame_start % frame_step):
frame_start -= 1
if (start is None) or (frame_start < start):
start = frame_start
# Get used frame range from repeat
# if (strip.repeat != 1.0):
# fs = strip.frame_start
# fe = strip.frame_end
# fe2 = scale_range(fe, fs, fe, 0, abs(fs - fe))
# frame_end = int((1 / strip.repeat) * fe2 + fs)
# else:
# frame_end = int(strip.frame_end)
if self.repeat:
afe = strip.action_frame_end
frame_end = Get.frame_from_strip(context, strip, afe)
else:
frame_end = strip.frame_end
frame_end = round(frame_end, 4)
# Update end value
if stepped:
while (frame_end % frame_step):
frame_end += 1
if (strip.repeat > 1.0) and self.repeat:
# Don't let loops end on the first frame
frame_end -= 1
if (end is None) or (end < frame_end):
end = frame_end
if (None not in {start, end}):
scn.use_preview_range = True
scn.frame_preview_end = end
scn.frame_preview_start = start
return {'FINISHED'}
else:
if strips_nla:
self.report({'WARNING'}, "Couldn't set preview; using default")
return bpy.ops.nla.previewrange_set()
def execute(self, context):
value = None
for (ob, strips) in Get.strips_nla(context):
for item in strips:
if value is None:
value = not item.strip.use_sync_length
item.strip.use_sync_length = value
return {'FINISHED'}
def poll(cls, context):
return Get.strips_nla(context)
