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# File sequencer_slide_strip.py
# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
import bpy
from bpy.types import (
Operator,
Panel,
)
from . import functions
class EcoPanel(Panel):
bl_label = "Eco Tool"
bl_idname = "OBJECT_PT_EcoTool"
bl_space_type = "SEQUENCE_EDITOR"
bl_region_type = "UI"
@staticmethod
def has_sequencer(context):
return (context.space_data.view_type in
{'SEQUENCER', 'SEQUENCER_PREVIEW'})
@classmethod
def poll(self, context):
if context.space_data.view_type in {'SEQUENCER', 'SEQUENCER_PREVIEW'}:
strip = functions.act_strip(context)
scn = context.scene
preferences = context.preferences
prefs = preferences.addons[__package__].preferences
if scn and scn.sequence_editor and scn.sequence_editor.active_strip:
if prefs.use_eco_tools:
return strip.type in ('META')
else:
return False
def draw_header(self, context):
layout = self.layout
layout.label(text="", icon="FORCE_HARMONIC")
def draw(self, context):
strip = functions.act_strip(context)
seq_type = strip.type
preferences = context.preferences
prefs = preferences.addons[__package__].preferences
if seq_type in ('MOVIE', 'IMAGE', 'META', 'MOVIECLIP', 'SCENE'):
layout = self.layout
col = layout.column()
col.prop(prefs, "eco_value", text="Ecos")
col.prop(prefs, "eco_offset", text="Offset")
col.prop(prefs, "eco_use_add_blend_mode", text="Use add blend mode")
col.operator("sequencer.eco")
class OBJECT_OT_EcoOperator(Operator):
bl_idname = "sequencer.eco"
bl_label = "Eco operator"
bl_description = "Generate an echo effect by duplicating the selected strip"
bl_options = {'REGISTER', 'UNDO'}
@staticmethod
def has_sequencer(context):
return (context.space_data.view_type in
{'SEQUENCER', 'SEQUENCER_PREVIEW'})
@classmethod
def poll(self, context):
strip = functions.act_strip(context)
scn = context.scene
if scn and scn.sequence_editor and scn.sequence_editor.active_strip:
return strip.type in ('META')
else:
return False
def execute(self, context):
active_strip = functions.act_strip(context)
preferences = context.preferences
prefs = preferences.addons[__package__].preferences
eco = prefs.eco_value
offset = prefs.eco_offset
active_strip.blend_type = 'REPLACE'
active_strip.blend_alpha = 1
for i in range(eco):
bpy.ops.sequencer.duplicate(mode='TRANSLATION')
bpy.ops.transform.seq_slide(
value=(offset, 1), snap=False, snap_target='CLOSEST',
snap_point=(0, 0, 0), snap_align=False,
snap_normal=(0, 0, 0), release_confirm=False
)
active_strip = functions.act_strip(context)
if prefs.eco_use_add_blend_mode:
active_strip.blend_type = 'ADD'
active_strip.blend_alpha = 1 - 1 / eco
else:
active_strip.blend_type = 'ALPHA_OVER'
active_strip.blend_alpha = 1 / eco
bpy.ops.sequencer.select_all(action='TOGGLE')
bpy.ops.sequencer.select_all(action='TOGGLE')
bpy.ops.sequencer.meta_make()
return {'FINISHED'}
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