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FaabyyandClaude
03fce2adf2
The slide thumbnail pane and the Slide Sorter asked the texture cache for a thumbnail on every row, in view or not, three or four new ones a frame. The cache keeps at most 600 thumbnails and drops the 200 oldest beyond that, so on a deck of more than 600 slides the pane evicted its own thumbnails before it reached the end: it kept rendering, the rows in view went white again and again, and it never finished. Now only rows within the scroll area's clip (plus two rows of margin) ask for a thumbnail and keep the pane repainting; the others are still laid out, so scroll height, section headers, clicks and drag-to-reorder are unchanged. Small decks behave as before. Co-Authored-By: Claude <noreply@anthropic.com>