while fixing a SVG export issue for techDraw I noticed that some SVG files have program-dependent (and thus not clean) code in it. These are traces of the programs Sodipodi and Inkscape, like e.g. this line:
inkscape:export-filename="/home/yorik/PartDesign_Groove.png
This is unnecessary and FC should not use program-dependent code in the SVG but use instead plain SVG strictly following the SVG specification.
This PR transforms the few affected SVGs to a plain version.
* Support sub-object reference syntax using the following syntax,
Part.<<Box.>>.Placement
or, with sub-object label referencing
Part.<<$Cube.>>.Placement
* Extend indexing support, including range based indexing, e.g.
A1[B2+1][C3][D4:-1]
* Add new constants, None, True, true, False, false.
for Drawing, Image, Inspection, Mesh, MeshPart, Part, Path, Points, Raytracing, ReverseEngineering, Spreadsheet, Start, Surface, Web
TODO: fix several -Woverflow in area
PropertySheet is changed to derive from PropertyExpressionContainer,
which makes it a link type property that is capable of external linking.
It now relies on the unified link property API to manage object
depenency, and tracking of object life time, relabeling, etc.
This patch also includes various fix and improvement of Spreadsheet,
such as improved recompute efficiency, correct handling of document
label change, etc.