Akiba So
fd102b5703
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Two critical PDF-editor bugs. 1. Live ink only appeared after lifting the pen. The page overlay painter captured the live stroke as a build-time snapshot, so per-move repaints redrew stale (null) data until commit. Route the live stroke through a ValueNotifier the painter reads at paint time (repaint: merge(overlayRepaint, liveStrokeVN)). 2. Pinch-zoom jumped on Windows touch. pdfrx's internal forked InteractiveViewer scales with an unguarded scaleStart*details.scale that pops on a touch-count blip or one-frame spike. Take over the pinch: scaleEnabled:false (pdfrx keeps 1-finger scroll + wheel), a glitch-guarded ScaleGestureRecognizer drives focal zoom via the pdfrx controller, reusing absolutePinchScale + the re-baseline / per-frame-clamp / focal-jump guards already proven on the note canvas. Zoom + pen feel are device-validated. analyze clean, tests green.