* [Core] Add a basic VarSet document object

* [Core] Add basic tests for VarSets

* Core: Replace the VarSet icon with an outlined one

…ted subfeature is edited

Before calling the closeSubTask() function from the dialog reject()
function, the slotDeletedObject() is called from the transaction being
aborted. This causes the subFeature pointer to be nullptr and subsequent
apply() functions from the SpinBox widgets to crash.

Before calling apply check if the subFeature is still there.

…mentGeneralFuse

Toponaming/Part:  make element generalfuse, fuse, cut

…form

…tests

…d tests

The icons are taken from https://github.com/realthunder/FreeCAD/tree/LinkMerge

Prepends the visibility icon to the normal icon if enabled and uses
the result as the new icon.

If the visibility icon is enabled a mouse press on that part of the icon
toggles the visibility of the tree item.

…con preference changes

Add a preference to Display->UI that allows the user to choose if
the visibility icons are shown in the tree view.

These are mostly comment changes.

…alOperator

Toponaming/Part:  Bring in = operator, resetMap and flushMap overrides, and fix affecte…

…cope

…tChamfer

…mentFillet

Toponaming/Part make element fillet

…form

* App: Add PreCompiled.h to Varset cpp file

…lices, and makeElementMirror

…mentTransform

Toponaming/Part: make element transform, _transform and gtransform

…mentSolid

Toponaming/Part: make element solid

…ntPrism, makeElementPrismUntil

Foreign Python objects needs to be passed as Py::Object().
Py::asObject() is stealing reference and object might be garbage
collected even before dereferenced. Problem didn't show in the
original code because methods Py::asObject() was used in were
never called.

Fixes: ac6f991 (Gui: Consolidate Python -> Qt class conversion)

…FreeCAD#12437)

…tems

…raint to Python

…sn't work correctly

* Update translations

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

…mentSliceMirror

Toponaming: Part: make element slice mirror

…eeCAD#6093

with ´save-always: true´ flag

…aint_symbols

Fem: Update constraint symbols when moving reference shape - fixes FreeCAD#6093

.

.

While rebasing after f539138 ("fix readability-*:") a mistake was
make, causing  exception been thrown for every file opened. While there,
invert file test existence logic, so we return early on failure.

Fixes: 95b37fa ("Base: Do not use else before return")

use the wires of the computed face instead of the selected ones.

…roups

Add an icon to toggle the visibility of items in the tree view

Core: Create a SuppressibleExtension to provide the Suppressed property to all the WBs

* PD: Make datum points highlightable/selectable

Give the user some feedback by changing the color of the datum point
marker as the user selects or hovers over it.

Closes FreeCAD#9540

File brandind.xml are unused

fix [-Winconsistent-missing-override]
fix [-Wunused-lambda-capture]
fix [-Wunused-variable]
fix [-Wswitch]

Assembly: add example file and new file template

…12503

…mentRevolve

Toponaming/Part: make element revolve and prism

…mant templates

removed unused Memdebug files

Clean cmake

Empty file

…lementFilledFace

Needed for B-spline to B-spline end to end tangent. The end point of one is for
now not usable in to get normal at the other.

Coincidence is implied as part of this particular variety of tangent constraint.

If endpoint-to-endpoint tangent constraint exists between the connecting points
of the curves to be joined, also apply C1 continuity (i.e. a knot multiplicity
of degree-1).

…lution