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fix(ui): #145 — importer honors ZLevel so the backdrop sits behind panels

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The factory mapped ZOrder from ReadOrder only, so the gmInventoryUI
full-window backdrop (0x100001D0, ReadOrder 4) painted over the nested
panels (ReadOrder 1-3). Wire ElementDesc.ZLevel through ElementInfo /
ToInfo / Merge and fold it into ZOrder = ReadOrder - ZLevel*10000 (higher
ZLevel = further back, ReadOrder the within-layer tiebreaker). Vitals
(all ZLevel 0) are unchanged; chat (ZLevel 900) + toolbar (1,2) shift to
their dat layering — verify visually.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Erik 2026-06-21 07:22:26 +02:00
parent d81ea11a31
commit 45a5cc5bb6
4 changed files with 56 additions and 2 deletions
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7
src/AcDream.App/UI/Layout/DatWidgetFactory.cs
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@ -77,8 +77,11 @@ public static class DatWidgetFactory
e.Width = info.Width;
e.Height = info.Height;
// Honor the dat's draw order so overlapping pieces (grip overlay over bevel chrome) layer correctly.
e.ZOrder = (int)info.ReadOrder;
// Honor the dat's draw order. ZLevel is the primary layer (higher = further BACK — e.g. the
// gmInventoryUI full-window backdrop at ZLevel 100 sits behind the ZLevel-0 panels, #145);
// ReadOrder is the within-layer tiebreaker (higher = on top). K=10000 exceeds any window's
// element count so ZLevel always dominates. Vitals (all ZLevel 0) keep ZOrder == ReadOrder.
e.ZOrder = (int)info.ReadOrder - (int)info.ZLevel * 10000;
// Map the four raw edge-anchor values to the AnchorEdges bit-flag that the
// UI layout engine uses for reflow.