Commit Graph

4 Commits

Author SHA1 Message Date
e675ead0ed WIP Themes Support 2020-06-17 18:04:18 -07:00
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
49f108f302 Prevent tooltips from clipping outside window boundaries 2020-03-09 22:24:04 -07:00
f9b305679a Tooltip Widget and Event Refactor
* Tooltip can be added to any target widget (e.g. Button) and pop up on
  mouse over.
* Refactor the event system. Instead of passing a render.Point to all
  event handlers, pass an EventData struct which can hold the Point or
  the render.Engine.
* Add event types Computed and Present, so a widget can set a handler on
  whenever its Computed or Present method is called.
2020-03-09 17:13:33 -07:00