Rework Qgs(Double)SpinBox clear handling #3468
Merged
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The current approach used by Qgs(Double)SpinBox of having a child tool button for the clear button has some issues:
This PR reworks the spin boxes to use QgsFilterLineEdit for handling the drawing and click detection for the clear button.
Here's a before/after on OSX:
I've always hated seeing screenshots of QGIS on OSX because of this issue...