NEWT: Changed Lifecycle of Display/Screen

Display/Screen:

- Removed Display reusage by unique TLS key: type + name,
  instead use user-responsibility or Destroy-When-Unused (usage reference count).

- Removed X11 Display TLS pool usage

- Display creation means i, incl the later native one (X11).

- Added reference counting as follows:
    - Display's refCount: number it is referenced by Screen:
          display.addReference()/display.removeReference()

    - Screen's  refCount: number it is referenced by Window:
          screen.addReference()/screen.removeReference()

- Lazy creation using refcount 0 -> 1
  All resources are created when they are needed.
  This also removes redundant native Display/Screen objects,
  ie in case of [AWT] reparenting.

- Default lifecycle is user-responsibility, ie no Destroy-When-Unused, where
  Window may be destroyed unrecoverable, which removes the Screen reference only.

- If using optional Destroy-When-Unused a
  Window may be destroyed unrecoverable, which removes the Screen reference:
    Screen.removeReference();
    IF Screen.refCount == 0 THEN
        Screen.destroy();
        Display.removeReference();
        IF Display.refCount == 0 THEN
            Display.destroy();

- Use Destroy-When-Unused lifecycle for all automatic created  Display/Screen
  instances (GLWindow, NewtCanvasAWT,..)

- Display/Screen destroy/create cycles valid,
  ie you can reuse destroyed Display/Screen's

- EDTUtil:
    - Created right away.
    - Started always via invoke, if not running.

- DefaultEDTUtil:
    - Simplified locking a bit locking on:
        - edtLock for start/stop
        - edtTasks for tasks queue
    - invoke-wait doubles check shouldStop
    - invoke-wait 'waiting' outside of edtLock

+++

NEWT: Cleanup

- Window.destroy/invalidate: deep -> unrecoverable

- Window.isNativeWindowValid() -> Window.isNativeValid()
  to unify with Display/Screen

- Window.isDestroyed() -> Window.isValid()
  to unify and simplify logic.
  Returns false if destroy(true) has been called.

- NewtFactory.wrapDisplay(.. handle) -> NewtFactory.createDisplay(.. handle),
  since it actually creates a compatible display.

+++

NativeWindow X11Util: Added non TLS createDisplay()/closeDisplay()

+++

TODO:
    - Stabilize (many tests fail)
    - OSX

0 files changed, 0 insertions, 0 deletions