gtk4: Full view zoom support
gtk3.22-client zooms each tile as it draws them. This has the benefit of not requiring redraw of the entire screen when just one tile changes.
gtk4-client redraws entire screen anyway, so it should use full screen zooming that allows any zoom level.
S3_1 gtk3-client build broken.
Reply To cazfi
Fixed in attached version.
Attached new versions that fill correct size area with the "unknown tiles" color.
gtk3.22-client zooms each tile as it draws them. This has the benefit of not requiring redraw of the entire screen when just one tile changes.
gtk4-client redraws entire screen anyway, so it should use full screen zooming that allows any zoom level.