hexchain authored Aug 08, 2020 and Frediano Ziglio committed Aug 19, 2020

Caps the minimum scale of the mouse cursor to 50% so that it is still
visible even if the window is too small.

This also workarounds a GDK warning when SpiceDisplay is used in
remote-viewer. Upon its initialization there is a possible race
condition, where update_mouse_cursor is called but the widget still has
a size of 1x1. In such case, the calculated scale is very small and the
mouse surface width and height are both zero, causing a warning:

gdk_cursor_new_from_surface: assertion '0 <= x && x < cairo_image_surface_get_width (surface)' failed

Signed-off-by: Haochen Tong <i@hexchain.org>
Acked-by: Frediano Ziglio <fziglio@redhat.com>