how to add expression feature to a QuantitySpinBox

[uwestoehr]

I work frequently with Part/PartDesign primitives and it annoys me that I can define the offset using expressions but not the angle:

Screenshot of TaskAttacher dialog

FreeCAD_oKAWuIXQWJ.png (10.97 KiB) Viewed 874 times

Therefore I wanted to add the missing expression feature but cannot figure out how. Has anybody a pointer for me please to learn how this is done?

[openBrain]

As this angles are basically yaw/pitch/roll, I advise that you have a look at notes of issue #4106 and related links before getting started.

[chrisb]

It seems that these are not enabled for expressions for the same reason as the Placement dialog is not expression aware: They are already calculated values.

[uwestoehr]

As this angles are basically yaw/pitch/roll, I advise that you have a look at notes of issue #4106 and related links before getting started.

My question is not bound to these specific SpinBoxes, but in general: How do I add the expression feature to a SpinBox?

[wmayer]

My question is not bound to these specific SpinBoxes, but in general: How do I add the expression feature to a SpinBox?

https://github.com/FreeCAD/FreeCAD/blob ... rs.cpp#L97

All what's needed is to use the bind for the property you want to control. The ability to set expressions is done automatically.

[uwestoehr]

All what's needed is to use the bind for the property you want to control. The ability to set expressions is done automatically.

Many thank!