JonKazama-Hellion
16557213cd
The first sweep matched a character class that swallowed the digit, so a bare B1 slipped through while B1-2 was caught. Searching the whole A-Z space instead of guessing prefixes turned up 130-odd more: B0 through B6, C2, C3, D1, H2, M6, P7, P8, T2, W2, plus GP-04, KB-01, OD-1, PM-1, PM-3, SEC-01, TR-4, TR-7, UI-11, UI-12, XC-8 and API-3. Kept deliberately: 41 B4 01 is a byte signature, "N0" a format string, #L119-L128 a source anchor, LS4/LS6 are linkshells, and A=FF B=0C G=41 R=C2 explains a colour-channel order. Those look like codes and are not. Also translated the eight German comments left in the theme files and ImGuiUtil. Seven of them described what a palette does to which channel, which is worth reading -- just not in a second language in an otherwise English codebase.
78 lines
2.6 KiB
C#
78 lines
2.6 KiB
C#
using System.Collections.Generic;
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namespace HellionChat.Ui.Components;
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// Variable-height clip plan. ImGuiListClipper needs a constant
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// row height, and since v1.10.0 neither density has one (compact rows wrap
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// too), so both compute a plan from the cached per-row heights: a lead dummy
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// for the rows above
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// the viewport, the [first..last] index range that overlaps the viewport, and
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// an end dummy for the rows below. This is the prefix-sum analogue of
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// OtterGui's GetNecessarySkips, but for non-uniform heights — kept Dalamud-free
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// so the Build Suite pins every edge case.
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// TEST-MIRROR: ../../../../Hellion Build test/Ui/CardClipPlanTests.cs
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internal readonly record struct CardClipPlan(
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int FirstVisible,
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int LastVisible,
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float LeadDummyHeight,
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float EndDummyHeight
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);
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internal static class CardClipPlanner
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{
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// heights[i] is the cached height of row i in draw order. It carries no
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// trailing ItemSpacing: every row ends inside DrawChunks, where spacing is
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// pushed to zero, and ImGui writes the advance at item submission time.
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// A row overlaps the viewport iff rowTop < windowBottom && rowBottom >
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// windowTop. FirstVisible/LastVisible are -1 when nothing overlaps (empty
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// list); callers then submit a single end dummy of the full content height
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// so the scrollbar stays correct.
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internal static CardClipPlan Plan(
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IReadOnlyList<float> heights,
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float scrollY,
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float viewportHeight
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)
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{
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var count = heights.Count;
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if (count == 0)
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return new CardClipPlan(-1, -1, 0f, 0f);
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var windowTop = scrollY;
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var windowBottom = scrollY + viewportHeight;
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var first = -1;
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var last = -1;
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var leadDummy = 0f;
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var endDummy = 0f;
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var cursor = 0f; // running prefix sum = top edge of the current row
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for (var i = 0; i < count; i++)
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{
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var rowTop = cursor;
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var rowBottom = cursor + heights[i];
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var overlaps = rowTop < windowBottom && rowBottom > windowTop;
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if (overlaps)
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{
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if (first < 0)
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first = i;
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last = i;
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}
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else if (first < 0)
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{
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// Still above the visible window -> grows the lead dummy.
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leadDummy += heights[i];
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}
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else
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{
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// Already past the visible window -> grows the end dummy.
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endDummy += heights[i];
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}
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cursor = rowBottom;
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}
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return new CardClipPlan(first, last, leadDummy, endDummy);
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}
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}
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