Metal AgentandClaude Opus 5
73df4fa679
"Approximately 71 columns by 42 rows per panel" was derived from a hardcoded 8.4 px advance that nothing had measured. The measured advance is about 7.3 px, so the figure was roughly 13% short — a full-width pane on the reference display measures 140 columns, not 122. The paragraph now says the number is a consequence of the measurement rather than a property of the design. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
35 lines
2.1 KiB
Markdown
35 lines
2.1 KiB
Markdown
# 0009: The workspace uses responsive self-contained vertical panels
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Status: accepted for the native vertical slice.
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The workspace shows one vertical panel in compact windows, three at normal
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desktop widths, and five when at least 2800 px remains after the sidebar. A
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3440 px ultrawide therefore presents five panels. A sliding window over the six
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comparison panes always keeps the selected pane visible.
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This is not a return to the original 2×3 dashboard and it is not one shared
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20/60/20 frame sliced only through the middle. Every panel receives the full
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workspace height and independently contains its own 20% context region, 60%
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terminal/work surface, and 20% decision shelf. Only the selected panel owns
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keyboard input. Clicking a panel selects it. Pane processes and output continue
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independently of selection.
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Terminal geometry is computed from the width of one panel and the height of its
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middle 60% region, including gaps and content insets. The selected real PTY is
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resized through the runtime actor when the responsive panel count or window
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bounds change. Cell size is **measured**, not assumed: the advance of `0` in the terminal face
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comes from the text system, so the column arithmetic and the painted glyph agree
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by construction. This paragraph previously quoted "approximately 71 columns by
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42 rows per panel", derived from a hardcoded 8.4 px advance that nothing had
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ever measured. The real advance is about 7.3 px, so those numbers were roughly
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13% short — one full-width pane on the reference display measures 140 columns,
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not 122. Any figure quoted here is a consequence of the measurement and the
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current panel count, and will move when either does.
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The runtime slice now owns three independent real PTYs through a pane-indexed
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session registry, one for every terminal fixture. The Markdown, browser, and
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review fixtures remain deterministic comparison surfaces. The GPUI product
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slice now adds arbitrary panels through a persistent dynamic identity layer;
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each additional Terminal panel is another entry in the same runtime ownership
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design. The fixed fixture remains only as the GPUI/Floem benchmark input.
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