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mtlcl410andClaude Opus 5.5
da351cda8f
Review follow-up (CodeRabbit on #3475). A form edit refreshes the display copy on every keystroke, and with /NeedAppearances that redrew every field of the form: 68 ms per edit on a 1000-field form against 7 ms on main. FieldAppearanceCache keeps each widget's drawing with the objects it was drawn from: the widget and its field ancestors, the form dictionary and the fonts of its /DR, each with the objects its entries refer to. An entry is used only while each of them is still the same object (Arc::ptr_eq); the document replaces an object it edits, so a changed input is a miss, never a stale hit. The engine keeps one per editor. A field edit on that form now takes 13 ms. The repair note on a failed display write now names field appearances too. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Gv2WwdgjmBz33GWkwgNn3Q