adminandClaude Sonnet 4.6
8bb6a8e53a
TransformPanel provides the right-panel parameter editing section: - Position: X/Y QDoubleSpinBox (range ±99999 px, 0.1 step) - Size: Width/Height QDoubleSpinBox (min 10 px) + 锁定宽高比例 checkbox - When locked and width changes, height is auto-updated to maintain ratio - When locked and height changes, width is auto-updated to maintain ratio - Locking captures the current ratio at that moment - Rotation: angle QDoubleSpinBox + 左旋 90° / 右旋 90° buttons Signal-loop prevention: - set_transform() sets self._updating = True and blockSignals on all inputs before updating values, preventing valueChanged from re-firing _emit() - _on_width_changed/_on_height_changed also blockSignals on the companion spinbox when adjusting for aspect ratio to avoid double emission Public API: - set_transform(TransformState): programmatic update, no signal emitted - get_transform() -> TransformState: read current inputs - transform_changed signal: emitted whenever user edits any input Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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