"

 COPYRIGHT (c) 1989 by Claus Gittinger

	      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.

"

TopView subclass:#StandardSystemView

       instanceVariableNames:'label icon iconView iconLabel

			      minExtent maxExtent sizeFixed

			      application windowEventsForApplication'

       classVariableNames:   'DefaultIcon TakeFocusWhenMapped IncludeHostNameInLabel'

       poolDictionaries:''

       category:'Views-Basic'

!

StandardSystemView comment:'

COPYRIGHT (c) 1989 by Claus Gittinger

	      All Rights Reserved

'!

!StandardSystemView class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 1989 by Claus Gittinger

	      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.

"

!

version

"

"

!

documentation

"

    I represent topViews i.e. those views which have a title-label,

    an icon etc. Usually StandardSystemViews are subclassed for

    special views.

"

! !

!StandardSystemView class methodsFor:'defaults'!

includeHostNameInLabel

    "return the flag which controls if a views label should

     include the hostname.

     This flag is usually set/cleared in your private.rc file;

     the default is false."

    ^ IncludeHostNameInLabel

    "Created: 10.9.1995 / 19:21:16 / claus"

!

includeHostNameInLabel:aBoolean

    "set/clear the flag which controls if a views label should

     include the hostname - this is highly useful if you have 

     multiple smalltalks open simultaniously ...

     This flag is usually set/cleared in your private.rc file;

     the default is false."

    IncludeHostNameInLabel := aBoolean

!

defaultLabel

    "return the default label for views of my kind.

     This can be redefined in subclasses or overwritten in

     initialize methods."

    ^ 'aView'

!

defaultIcon

    "return the default icon for views.

     This can be redefined in subclasses or overwritten in

     initialize methods."

    DefaultIcon isNil ifTrue:[

	DefaultIcon := Image fromFile:'SmalltalkX.xbm'.

	DefaultIcon notNil ifTrue:[

	    DefaultIcon := DefaultIcon on:Display

	]

    ].

    ^ DefaultIcon

! !

!StandardSystemView class methodsFor:'startup'!

open

    "create, realize the view - this topview and all its subviews will

     run as a separate process with its own windowGroup"

    ^ self new open 

!

start

    "create, realize the view - this topview and all its subviews will

     run as a separate process with its own windowGroup.

     This method exists for backward compatibility - use open."

    ^ self open

! !

!StandardSystemView class methodsFor:'instance creation'!

model:aModel label:aLabel minimumSize:minExtent

    "ST80-style instance creation"

    |newView|

    newView := self origin:nil 

		    extent:minExtent

		     label:aLabel 

		      icon:nil

		 minExtent:minExtent

		 maxExtent:nil.

    newView model:aModel.

"/    newView controller:(self defaultControllerClass new view:newView).

    ^ newView

!

label:aLabel

    "create a new topView and define its label"

    ^ self origin:nil extent:nil

	   label:aLabel icon:nil

	   minExtent:nil maxExtent:nil

!

label:aLabel minExtent:anExtent

    "create a new topView and define its label and minimum extent"

    ^ self origin:nil extent:nil

	   label:aLabel icon:nil

	   minExtent:anExtent maxExtent:nil

!

label:aLabel icon:aForm

    "create a new topView and define its label and icon"

    ^ self origin:nil extent:nil

	   label:aLabel icon:aForm

	   minExtent:nil maxExtent:nil

!

label:aLabel icon:aForm minExtent:anExtent

    "create a new topView and define its label, icon and minumum extent"

    ^ self origin:nil extent:nil

	   label:aLabel icon:aForm

	   minExtent:anExtent maxExtent:nil

!

label:aLabel icon:aForm minExtent:minExtent maxExtent:maxExtent

    "create a new topView and define its label, icon, min and max extents"

    ^ self origin:nil extent:nil

	   label:aLabel icon:aForm

	   minExtent:minExtent maxExtent:maxExtent

!

origin:anOrigin extent:anExtent label:aLabel

    "create a new topView and define its origin, extent and label"

    ^ self origin:anOrigin extent:anExtent

	   label:aLabel icon:nil

	   minExtent:nil maxExtent:nil

!

origin:anOrigin label:aLabel icon:aForm

		minExtent:minExtent maxExtent:maxExtent

    "create a new topView and define its origin, extent, label, icon

     and extent-boundaries."

    ^ self origin:anOrigin extent:nil

	   label:aLabel icon:aForm

	   minExtent:minExtent maxExtent:maxExtent

!

extent:anExtent label:aLabel minExtent:minExtent

    "create a new topView and define its extent, label and minumum extent"

    ^ self origin:nil extent:anExtent

	   label:aLabel icon:nil

	   minExtent:minExtent maxExtent:nil

!

extent:anExtent label:aLabel icon:aForm

    "create a new topView and define its extent, label and icon"

    ^ self origin:nil extent:anExtent

	   label:aLabel icon:aForm

	   minExtent:nil maxExtent:nil

!

extent:anExtent label:aLabel icon:aForm minExtent:minExtent

    ^ self origin:nil extent:anExtent

	   label:aLabel icon:aForm

	   minExtent:minExtent maxExtent:nil

!

extent:anExtent label:aLabel icon:aForm minExtent:minExtent maxExtent:maxExtent

    ^ self origin:nil extent:anExtent

	   label:aLabel icon:aForm

	   minExtent:minExtent maxExtent:maxExtent

! !

!StandardSystemView methodsFor:'initialization'!

initialize

    super initialize.

    borderWidth := 2.         "- notice: many window managers ignore this"

    minExtent := 10 @ 10.

    maxExtent := (device width) @ (device height).

    label isNil ifTrue:[label := self class defaultLabel].

    icon isNil ifTrue:[icon := self class defaultIcon].

    name := self class name.

!

initEvents

    super initEvents.

    self enableFocusEvents.

!

defaultControllerClass

    "for ST-80 compatibility only - not used in ST/X"

    ^ nil "/ StandardSystemController

!

addToCurrentProject

    "add the receiver (a topview) to the current projects set-of-views.

     (If there is a current project)"

    |p|

    "

     the following check allows systems

     without projects and changeSets

    "

    (Project notNil and:[(p := Project current) notNil]) ifTrue:[

	p addView: self

    ]

!

removeFromCurrentProject

    "remove the receiver (a topview) from the current projects set-of-views.

     (If there is a current project)"

    |p|

    "

     the following check allows systems

     without projects and changeSets

    "

    (Project notNil and:[(p := Project current) notNil]) ifTrue:[

	p removeView:self

    ]

!

reinitialize

    "reopen the receiver if if was visible before.

     This is called right after snapIn; Notice, that all instance variables

     (such as shown, realized etc.) are left-overs from the time the snapout

     was done. Remap the receiver, if it was mapped at snapout time"

    |myController|

    "if I have already been reinited - return"

    drawableId notNil ifTrue:[

	^ self

    ].

    "have to kludge with the controller 

     - otherwise its startup performs unwanted actions ..."

    myController := controller.

    controller := nil.

    "physically create the view & subviews"

    self recreate.

    "if I was mapped, do it again"

    realized ifTrue:[

	"if it was iconified, try to remap iconified"

	device mapView:self id:drawableId iconified:(shown not) 

		   atX:left y:top width:width height:height.

	"and restart the window-group process"

	windowGroup notNil ifTrue:[

	    windowGroup restart

	]

    ].

    "restore controller"

    controller := myController

!

recreate

    "recreate the view after a snap-in"

    icon := self convertedIcon.

    super recreate.

    iconView notNil ifTrue:[

	iconView create.

	device setWindowIconWindow:iconView in:drawableId

    ] ifFalse:[

	(icon notNil and:[icon id notNil]) ifTrue:[

	    device setWindowIcon:icon in:drawableId

	].

    ].

    iconLabel notNil ifTrue:[

	device setIconName:iconLabel in:drawableId

    ]

!

reAdjustGeometry

    "when we come up on a smaller display, 

     make certain, that the receiver is visible"

    |dX dY limitRight limitBottom|

    dX := (device horizontalPixelPerMillimeter * 20) rounded.

    dY := (device verticalPixelPerMillimeter * 20) rounded.

    limitRight := device width - dX.

    limitBottom := device height - dY.

    ((self left > limitRight) or:[

      self top > limitBottom]) ifTrue:[

	'moving view into visible area' errorPrintNL.

	self origin:limitRight @ limitBottom

    ]

!

realize

    "realize the view i.e. make it visible."

    super realize.

    windowGroup notNil ifTrue:[

	"/

	"/ have to wait till now, since before I had no windowGroup

	"/

	windowGroup focusSequence:self focusSequence.

	"/

	"/ let the application add its views to the current project

	"/

	application notNil ifTrue:[

	    application opened.

	] ifFalse:[

	    self addToCurrentProject.

	].

    ]

!

restarted

    "sent by my windowGroup, when restarted from an image.

     Nothing done here, but can be redefined to perform any actions

     required to reset the application after an image-restart.

     (for example: check if application files are still around, restart

     subprocesses etc.)."

    application notNil ifTrue:[

	application restarted

    ].

! !

!StandardSystemView methodsFor:'destroying'!

terminate

    "terminate request from the windowManager. If there is an application,

     let it decide if it really wants to be close. Otherwise, forward it to

     superclasses terminate which knows how to do this.

     Notice, that not all windowmanagers are nice enough

     to send this request; some simply distroy the view."

    application notNil ifTrue:[

	application closeRequest

    ] ifFalse:[

	super terminate

    ]

!

saveAndTerminate

    "save & terminate request from the windowManager. The application should 

     save its data/files/text etc. somehow and close.

     If there is an application, let it decide how do do that.

     Otherwise, forward it to superclasses which knows how to do this.

     (it defaults to a terminate there).

     Notice, that not all windowmanagers are nice enough

     to send this request; some simply distroy the view."

    application notNil ifTrue:[

	application saveAndTerminateRequest

    ] ifFalse:[

	super saveAndTerminate

    ]

!

destroy

    "destroy the view."

    self removeFromCurrentProject.

    windowGroup notNil ifTrue:[

	windowGroup focusSequence:nil.

    ].

    application notNil ifTrue:[

	application windowEvent:(#close -> self) from:self

    ].

    super destroy.

!

closeRequest 

    "programmatic close request"

    ^ self terminate

! !

!StandardSystemView methodsFor:'private'!

convertedIcon

    "make certain, that the icon is a b&w bitmap;

     do so by converting if required.

     Will add a device supportsDeepIcons and only convert when needed;

     for now, we always have to convert (since there are only Xdisplays)."

    |deviceIcon|

    icon isNil ifTrue:[^ nil].

    device supportsDeepIcons ifFalse:[

	icon depth ~~ 1 ifTrue:[

	    "

	     dither to monochrome

	    "

	    deviceIcon := icon asMonochromeFormOn:device.

	] ifFalse:[

	    deviceIcon := icon

	]

    ].

    deviceIcon notNil ifTrue:[

	"

	 get device pixmap (i.e. allocate colors & resource)

	"

	deviceIcon := deviceIcon on:device

    ].

    ^ deviceIcon

! !

!StandardSystemView methodsFor:'realization'!

physicalCreate

    "common code for create & recreate"

    |l|

    IncludeHostNameInLabel == true ifTrue:[