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ispyisail
3ca5d4ab29
ElementView applied scale() on every wheel notch with no bound on the
resulting view transform. Held down, the scroll-wheel zoom drives the
transform scale (m11) to floating-point overflow; the transform becomes
non-invertible, mapToScene() returns NaN and the next background paint
aborts the editor ("program closes completely" as reported on Windows).
Route zoomIn/zoomOut/zoomInSlowly/zoomOutSlowly through a new
scaleClamped() helper that only applies the scale while the result stays
within [m_min_zoom, m_max_zoom] (0.1 .. 200). Behaviour within that range
is unchanged.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HdWpDp3TrPKbHnv7YUcNJj