Fix tooltips: metrics and positioning #377
Merged
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This fixes the tooltip metrics defaults to something looking more like the IJP's, both in terms of delay and of behaviour.
We now use a simplified position calculation that is less complex than the custom logic we had both in terms of behaviour and in terms of code. It mostly piggybacks the built-in PopupPositionProviderAtPosition, but with a twist of never moving after being shown (like Swing tooltips do in the IJP).
We also set a sensible delay, matching the Swing defaults of 1.2s by default. In the bridge, we read as many metrics properties as possible from the LaF/Registry.
Fixes #375