leonarski_fandClaude Opus 5
4892c57119
The hovered "d = ... A" readout was a QGraphicsTextItem flagged ItemIgnoresTransformations, repositioned on every mouse motion. Qt cannot compute a tight dirty rect for an item that ignores the view transform, so it marks the entire viewport dirty whenever such an item moves or changes text -- and this one moved constantly. Paint it in drawForeground() in viewport pixels instead, and repaint only the union of its old and new rectangles. That also removes the item lifetime special-casing: it was deliberately kept out of overlay_items_, had to be nulled by hand after scene()->clear(), and carried comments in three places warning about the dangling pointer. This does not reduce raw X11 traffic -- there every repaint uploads the whole window whatever the damage -- but it cuts the work per hover, and it does matter under a compressing remote protocol (VNC/NX/xpra), which encodes only the region that actually changed. Verified against the previous build: same text, colour and position. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Jungfraujoch
Application to receive data from the PSI JUNGFRAU and EIGER detectors.
All documentation is now placed in docs/ subdirectory and for the current version hosted on Jungfraujoch Read The Docs page.