on-size in canvas:wide-snip-mixin

Called when the window is resized. The window's new size (in pixels) is provided to the method. The size values are for the entire window, not just the client area.

• (send a-canvas:wide-snip-mixin on-size width height) -> void
     width : exact integer in [0, 10000]
     height : exact integer in [0, 10000]

  If the canvas is displaying an editor, its on-display-size method is called.

  Adjusts the sizes of the marked snips.

  See add-wide-snip and add-tall-snip.