power_sequencer/operators/deselect_all_left_or_right.py

   1 # SPDX-License-Identifier: GPL-3.0-or-later
   2 # Copyright (C) 2016-2020 by Nathan Lovato, Daniel Oakey, Razvan Radulescu, and contributors
   3 import bpy
   4
   5 from .utils.doc import doc_name, doc_idname, doc_brief, doc_description
   6
   7
   8 class POWER_SEQUENCER_OT_deselect_all_strips_left_or_right(bpy.types.Operator):
   9     """
  10     Deselects all the strips at the left or right of the time cursor, based on the position
  11     of the mouse
  12     """
  13
  14     doc = {
  15         "name": doc_name(__qualname__),
  16         "demo": "",
  17         "description": doc_description(__doc__),
  18         "shortcuts": [
  19             (
  20                 {"type": "Q", "value": "PRESS", "alt": True},
  21                 {"side": "left"},
  22                 "Deselect all strips to the left of the time cursor",
  23             ),
  24             (
  25                 {"type": "E", "value": "PRESS", "alt": True},
  26                 {"side": "right"},
  27                 "Deselect all strips to the right of the time cursor",
  28             ),
  29         ],
  30         "keymap": "Sequencer",
  31     }
  32     bl_idname = doc_idname(__qualname__)
  33     bl_label = doc["name"]
  34     bl_description = doc_brief(doc["description"])
  35     bl_options = {"REGISTER", "UNDO"}
  36
  37     side: bpy.props.EnumProperty(
  38         name="Side",
  39         description="The side to deselect",
  40         items=[
  41             (
  42                 "mouse",
  43                 "Mouse position",
  44                 ("Deselect based on the mouse position relative to the" " time cursor"),
  45             ),
  46             ("left", "Left", "Left of the time cursor"),
  47             ("right", "Right", "Right of the time cursor"),
  48         ],
  49         default="mouse",
  50     )
  51
  52     @classmethod
  53     def poll(cls, context):
  54         return context.selected_sequences
  55
  56     def invoke(self, context, event):
  57         frame_current = context.scene.frame_current
  58         frame_mouse = context.region.view2d.region_to_view(event.mouse_region_x, 1)[0]
  59
  60         for s in context.sequences:
  61             if self.side == "left" or frame_mouse < frame_current and self.side == "mouse":
  62                 if s.frame_final_end < frame_current:
  63                     self.deselect(s)
  64             elif self.side == "right" or frame_mouse >= frame_current and self.side == "mouse":
  65                 if s.frame_final_start >= frame_current:
  66                     self.deselect(s)
  67         return {"FINISHED"}
  68
  69     def deselect(self, strip):
  70         strip.select = False
  71         strip.select_left_handle = False
  72         strip.select_right_handle = False