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Add nested clip previews to timeline tracks - #170

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OpenTimelineIO:mainfrom
NicTanghe:nested_gui_1
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OpenTimelineIO:mainfrom
NicTanghe:nested_gui_1

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@NicTanghe

@NicTanghe NicTanghe commented Oct 3, 2026 •

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Render nested clips as smaller colored bars inside parent clips. Preserve timing under trims, support deeper stacks, and keep lane order, rulers, markers, and keyboard navigation aligned.

Retain preview items for the layout lifetime and use exact bar bounds for drawing and hit testing.

Add media-free layout and UI regression tests for nested timing, clipping, navigation, ownership, and edge selection.

assighning colours doesnt work for nested clips yet.

DISCLAIMER: AI assisted
I havent done allot of c++ coding.
i still need to read trough the code couple of times.

@linux-foundation-easycla

linux-foundation-easycla Bot commented Oct 3, 2026 •

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The committers listed above are authorized under a signed CLA.

  • ✅ login: NicTanghe / name: Nicolaas Tanghe (8fef9f5)

Render nested clips as smaller colored bars inside parent clips. Preserve timing under trims, support deeper stacks, and keep lane order, rulers, markers, and keyboard navigation aligned.

Retain preview items for the layout lifetime and use exact bar bounds for drawing and hit testing.

Add media-free layout and UI regression tests for nested timing, clipping, navigation, ownership, and edge selection.

Signed-off-by: Nicolaas Tanghe <nicolaas.tanghe@gmail.com>

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