Fix scizzor behaviour and errors due to flooring/rounding

PistonDevelopers / conrod

An easy-to-use, 2D GUI library written entirely in Rust.

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Fix scizzor behaviour and errors due to flooring/rounding #1437

Closed mitchmindtree closed 2 years ago

mitchmindtree commented 2 years ago

This fixes an issue where a Scizzor command could be emitted even if one of its dimensions were 0. This caused a validation error in the wgpu backend.

Also makes the bounding box calculation on the Line widget more accurate.