[FEATURE] Allow deselection by clicking with a selection tool
- Now you can deselect with *any* selection tool: rectangular, elliptical, outline.
- Now you can also deselect with your tablet stylus, because there is a small tolerance level for considering your new selection as a click. If you made a selection that is smaller than 5 (view) pixels, then it is considered as a click and the tool deselects everything.
- One can configure the click-tolerance level with a config option 'SelectionViewSizeMinimum'
CC:kimageshop@kde.org
- Conflicts:
- libs/image/kis_algebra_2d.h