Noah Petherbridge 7d9ba79cd2 Window Manager Basics, Work in Progress ... * Adds Window Manager support to the Supervisor, so that Window widgets can be dragged by their title bar, clicked to focus, etc. * Create a ui.Window as normal, but instead of Packing or Placing it into a parent container as before, you call .Supervise() and give it your Supervisor. The window registers itself to be managed and drawn by the Supervisor itself. * Supervisor manages the focused window order using a doubly linked list. When a window takes focus it moves to the top of the list. Widgets in the active window take event priority. * Extended DragDrop API to support holding a widget pointer in the drag operation. * Changed widget event Handle functions to return an error: so that they could return ErrStopPropagation to prevent events going to more widgets once handled (for important events). Some bugs remain around overlapping windows and event propagation.		2020-04-06 22:57:28 -07:00
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main.go	Window Manager Basics, Work in Progress	2020-04-06 22:57:28 -07:00