- The 45° move assertion compares dx and dy with a small tolerance instead of
exact equality (the matrix's floats are rounded), keeping the non-zero check
and the message.
- The engine test helpers say what they do, so the docstring coverage of the
functions this pull request touches is complete.
The Selection tool's cursor now checks the ruler guides before a selected
object's centre point, as a press does. Tests: a ruler guide under the centre
point keeps the pointer and drags; on a box too thin for its centre to clear the
handles the handles take both; a shape-tool move from the centre snaps and shows
the hollow arrow; and Alt pressed mid-drag copies the shape through the engine.
The Selection tool's cursor now checks the bounding-box handles before a
selected object's centre point, as a press does (on a thin box the centre lies
within a handle's reach). The shape tools' tests cover a Live Corners widget
that lands on another selected shape's centre (the widget rounds), Alt pressed
mid-drag (the preview copies and the copy cursor shows), and the engine tests
check the copy's place and both gestures' Undo and Redo. The cursor catalog says
which arrow a drag of the selection shows.
- The Selection tool takes a Shift-press on a selected object's centre point
too: a Shift-drag moves the selection held to 45° steps, and a Shift-click
there takes the object out of the selection, as a Shift-press on the object
does.
- One rotate zone for the Selection tool and the shape tools
(`select::rotate_zone`): a press on a bounding-box handle is not a turn, so
the shape tools' zone matches the Selection tool's classification exactly.
- The shape tools' hover cursor follows the press order (corner and pie widgets,
then the centre point, then the rotate zone), and a move of the selection
shows the Selection tool's feedback: SelectionCopy with Alt, ArrowHollow while
it snaps.
- Engine-level tests for the whole gesture (`crates/engine/src/tests/shapetools.rs`):
repeated previews and one undo step, Alt copy, Escape then release, a turn
about the centre, the corner widget still rounding, and an unfilled shape
moved by the Selection tool.
- docs: evidence in target-app-parity.md's Shapes bullet and the M2 milestone,
and the Move cursor's entry names the copy and snap cursors.
FractalEncrypt