power_sequencer/operators/value_offset.py

   1 # SPDX-FileCopyrightText: 2016-2020 by Nathan Lovato, Daniel Oakey, Razvan Radulescu, and contributors
   2 #
   3 # SPDX-License-Identifier: GPL-3.0-or-later
   4
   5 import bpy
   6
   7 from .utils.doc import doc_brief, doc_description, doc_idname, doc_name
   8 from .utils.functions import convert_duration_to_frames
   9
  10
  11 class POWER_SEQUENCER_OT_value_offset(bpy.types.Operator):
  12     """Instantly offset selected strips, either using frames or seconds. Allows to
  13     nudge the selection quickly, using keyboard shortcuts
  14     """
  15
  16     doc = {
  17         "name": doc_name(__qualname__),
  18         "demo": "",
  19         "description": doc_description(__doc__),
  20         "shortcuts": [
  21             (
  22                 {"type": "LEFT_ARROW", "value": "PRESS", "shift": True, "alt": True},
  23                 {"direction": "left"},
  24                 "Offset the selection to the left.",
  25             ),
  26             (
  27                 {"type": "RIGHT_ARROW", "value": "PRESS", "shift": True, "alt": True},
  28                 {"direction": "right"},
  29                 "Offset the selection to the right.",
  30             ),
  31         ],
  32         "keymap": "Sequencer",
  33     }
  34     bl_idname = doc_idname(__qualname__)
  35     bl_label = doc["name"]
  36     bl_description = doc_brief(doc["description"])
  37     bl_options = {"REGISTER", "UNDO"}
  38
  39     direction: bpy.props.EnumProperty(
  40         items=[
  41             ("left", "left", "Move the selection to the left"),
  42             ("right", "right", "Move the selection to the right"),
  43         ],
  44         name="Direction",
  45         description="Move the selection given frames or seconds",
  46         default="right",
  47         options={"HIDDEN"},
  48     )
  49     value_type: bpy.props.EnumProperty(
  50         items=[
  51             ("seconds", "Seconds", "Move with the value as seconds"),
  52             ("frames", "Frames", "Move with the value as frames"),
  53         ],
  54         name="Value Type",
  55         description="Toggle between offset in frames or seconds",
  56         default="seconds",
  57     )
  58     offset: bpy.props.FloatProperty(
  59         name="Offset",
  60         description="Offset amount to apply",
  61         default=1.0,
  62         step=5,
  63         precision=3,
  64     )
  65
  66     @classmethod
  67     def poll(cls, context):
  68         return context.selected_sequences
  69
  70     def invoke(self, context, event):
  71         self.offset = abs(self.offset)
  72         if self.direction == "left":
  73             self.offset *= -1.0
  74         return self.execute(context)
  75
  76     def execute(self, context):
  77         offset_frames = (
  78             convert_duration_to_frames(context, self.offset)
  79             if self.value_type == "seconds"
  80             else self.offset
  81         )
  82         return bpy.ops.transform.seq_slide(value=(offset_frames, 0))