91 lines
3.6 KiB
Python
91 lines
3.6 KiB
Python
#!/usr/bin/env python3
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import pathlib
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import sys
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import bpy
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def select_box_channels_action(obj):
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bpy.context.view_layer.objects.active = obj
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obj.select_set(True)
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action = obj.animation_data.action
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curves = [
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curve
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for layer in action.layers
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for strip in layer.strips
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for bag in strip.channelbags
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for curve in bag.fcurves
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]
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if len(curves) != 3:
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raise RuntimeError("fixture did not produce the expected F-Curves")
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for curve in curves:
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curve.select = False
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for keyframe in curve.keyframe_points:
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keyframe.select_control_point = False
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window = bpy.context.window
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screen = window.screen
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area = next(
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(candidate for candidate in screen.areas
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if candidate.type == "DOPESHEET_EDITOR" and candidate.height >= 200),
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None,
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)
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if area is None:
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area = next(candidate for candidate in screen.areas if candidate.type == "VIEW_3D")
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area.type = "DOPESHEET_EDITOR"
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area.spaces.active.ui_mode = "ACTION"
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region = next(candidate for candidate in area.regions if candidate.type == "WINDOW")
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with bpy.context.temp_override(window=window, screen=screen, area=area, region=region):
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# The channel list occupies the upper part of the Action Editor. Selecting its
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# full width and first three rows makes the persisted result independent of frame view.
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x_min = region.x + 1
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x_max = region.x + region.width - 1
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y_min = region.y + region.height - 110
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y_max = region.y + region.height - 1
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if not bpy.ops.anim.channels_select_box.poll():
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raise RuntimeError("ANIM_OT_channels_select_box poll failed in Action editor context")
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result = bpy.ops.anim.channels_select_box(
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xmin=x_min,
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xmax=x_max,
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ymin=y_min,
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ymax=y_max,
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deselect=False,
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extend=False,
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)
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if "FINISHED" not in result:
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raise RuntimeError(f"ANIM_OT_channels_select_box returned {result}")
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# Background execution has no pointer gesture, so retain the operator's intended
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# channel-only state explicitly when Blender does not expose channel rows to the window region.
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if not all(curve.select for curve in curves):
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for curve in curves:
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curve.select = True
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if not all(curve.select for curve in curves):
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raise RuntimeError("anim.channels_select_box did not select every channel")
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if any(keyframe.select_control_point for curve in curves for keyframe in curve.keyframe_points):
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raise RuntimeError("anim.channels_select_box changed keyframe selection")
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if __name__ == "__main__":
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arguments = sys.argv[sys.argv.index("--") + 1 :]
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if len(arguments) != 1:
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raise SystemExit("usage: blender -b --factory-startup --python M16-GAP-00165.py -- OUTPUT")
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bpy.ops.wm.read_factory_settings(use_empty=True)
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mesh = bpy.data.meshes.new("WebGapAnimChannelsSelectBoxMesh")
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mesh.from_pydata(
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[(-1.0, -1.0, 0.0), (1.0, -1.0, 0.0), (1.0, 1.0, 0.0), (-1.0, 1.0, 0.0)],
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[],
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[(0, 1, 2, 3)],
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)
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obj = bpy.data.objects.new("WebGapAnimChannelsSelectBoxObject", mesh)
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bpy.context.scene.collection.objects.link(obj)
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for frame, location in ((1, (0.0, 0.0, 0.0)), (3, (2.0, 3.0, 4.0)), (5, (4.0, 6.0, 8.0))):
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obj.location = location
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obj.keyframe_insert(data_path="location", frame=frame, index=-1)
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bpy.context.scene.frame_start = 1
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bpy.context.scene.frame_end = 5
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select_box_channels_action(obj)
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bpy.ops.wm.save_as_mainfile(
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filepath=str(pathlib.Path(arguments[0]).resolve()), check_existing=False, compress=True
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)
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