Class: ExternalTopView

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

Inheritance:

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

Package:

stx:libview2

Category:

Views-Basic

Version:

rev: 1.17 date: 2009/02/11 11:43:05

user: cg

file: ExternalTopView.st directory: libview2

module: stx stc-classLibrary: libview2

Author:

Claus Gittinger (cg@exept.de)

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

Related information:

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