Class: ExternalTopView

• Inheritance
• Description
• Class protocol
  • accessing
  • instance creation
• Instance protocol
  • private
  • private accessing
  • queries
  • redefined
  • special

Inheritance:

   Object
   |
   +--GraphicsMedium
      |
      +--DisplaySurface
         |
         +--SimpleView
            |
            +--View
               |
               +--TopView
                  |
                  +--ExternalTopView

Package:

stx:libview2

Category:

Views-Basic

Version:

rev: 1.27 date: 2022/10/12 07:39:38

user: stefan

file: ExternalTopView.st directory: libview2

module: stx stc-classLibrary: libview2

Description:

Represents a view as created by some other application.
This is a support-class to allow ST/X views to be created
inside other applications.

A simple demoApplication is found in goodies/stxInExternalWindow
(which uses Demos::PlayInAlienWindow as a startup anchor)



[instance variables:]
    none added here

[class variables:]
    none added here

copyright
COPYRIGHT (c) 1999 by eXept Software AG
             All Rights Reserved

This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice.   This software may not
be provided or otherwise made available to, or used by, any
other person.  No title to or ownership of the software is
hereby transferred.

Class protocol:

 errorPrinting: something

controls errorprinting while checking for alive connection

 newWithID: anAlienWindowID

create and return a new externalTopView - the windowID
as passed in must be from an alien programs view

Instance protocol:

 alienViewHasBeenDestroyed

 checkWindowStillAlive

check for a destroyed topView
(must poll, since we do not get any events from X for the alien topView)

 checkWindowStillAliveLoop

 startWindowClosedPollProcess

 stopWindowClosedPollProcess

 setWindowID: aWindowID

 isExternalTopView

return true, if this is an external topView - always true here

 destroyView

never destroyed by ST/X - instead, the view is under
control of the host application ...

 open

redefined to start a watch timeout for closed windows;
this is required, since we wont get any closeRequest event for
external windows (as all of its events are handled by the alien
application)

 unmap

redefined as a noop;
ExternalTopViews are never unmapped by ST/X - instead, the view is under
control of the host application ...

 becomeParentOf: anSTXWindow

add myself to the windowGroup of anSTXWindow ...
and reparent anSTXWindow to be the (only) child of myself

 new_becomeParentOf: anSTXWindow

add myself to the windowGroup of anSTXWindow ...
and reparent anSTXWindow to be the (only) child of myself

 old_becomeParentOf: anSTXWindow

add myself to the windowGroup of anSTXWindow ...
and reparent anSTXWindow to be the (only) child of myself