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qelectrotech-source-mirror/sources
ispyisail f3a31c291f Fix green fragments left by text resize handles when moving an element
The two width-resize handles added in #591 were free scene items, moved
with setPos() from inside DynamicElementTextItem::paint(). Moving an item
while the view is painting is outside what QGraphicsView's partial
repaint tracks: the handle was drawn only where the current repaint band
overlapped it, and its old position was not reliably cleared. Moving or
zooming a selected element left green slivers on the folio (#1002).
Since 29d16c333 the handles show on every text of a selected element,
so any ordinary element move triggered it.

Make the handles children of the text instead. Qt then moves and
repaints them together with the element, in local coordinates, and
their position only needs updating when the text's size changes, which
documentSizeChanged reports (text, font, width, undo of a resize).
This also takes paint() out of the handle logic entirely.

Reproduced on Linux (Xvfb), so the issue is not Windows-specific.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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fix
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