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Encapsulation of grid internals in ViewProviderObject2D, while allowing control via property changes and protected functions.
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1. The Grid has a default maximum of 10000 lines that is controlled via a new property. The grid is not created (is empty)
if a higher number of lines is necessary. This event is show as a Warning in the Report view.
2. The Grid now checks a new property ShowOnlyInEditMode before deciding whether to show the grid or not. This is a new
mode for ViewProvider2D and derived objects. If the property is set to true (and showGrid is true), the grid is only shown
if the object is in edit mode. If the property is set to false, the grid is shown regardless of whether it is in edit mode
or not (provided that showGrid is true).
3. Grid limits are now encapsulated (private). They can be set via a new function updateGridExtent.
... all options are freely accessible in the preferences editor ...
... eg. no need to check 'Show Grid' to customize grid size or snap
Also remove the sparse automatical saving to preferences from sketcher Task pane ...
... (some settings were saved, some not)
model()->layoutChanged signal didn't work at all, was never emitted by widget
Replaced with an eventFilter catching ChildRemoved to further emit the signal
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fixes#3831
Solver Interface getPointId method is only intended for normal geometry, and returns -1 if geoid is out of range, which was misinterpreted as root point selection.
Started a general refactor to handle all the conversion between global and object coordinate system inside the main methods and just use object coordinates inside object functions.
Draft: Edit reordering 2
Fixed Editing of Part objects according to the new refactor
Draft: fix in autogroup function for dimensions
Draft: fixed Polygon editing when inscribed or circumscribed
Draft: Edit support for Ellipse object
.
Draft: Edit docstrings
Draft: Edit reordering 3
Draft: Fixed Edit for structure object
And also refactor Edit methods that control special object display during editing.
Draft: Fixed edit for arch wall object
