"

Copyright (C) 2015-now Jan Vrany

"

"{ Package: 'jv:vdb' }"

"{ NameSpace: Smalltalk }"

VDBAbstractPresenter subclass:#VDBThreadGroupPresenter

	instanceVariableNames:'threadGroup'

	classVariableNames:''

	poolDictionaries:''

	category:'VDB-Presentation'

!

!VDBThreadGroupPresenter class methodsFor:'documentation'!

copyright

"

Copyright (C) 2015-now Jan Vrany

"

! !

!VDBThreadGroupPresenter methodsFor:'accessing'!

icon

    threadGroup isRunning ifTrue:[ ^ VDBIconLibrary threadGroupRunning16x16 ].

    threadGroup isStopped ifTrue:[ ^ VDBIconLibrary threadGroupStopped16x16 ].

    threadGroup isDead    ifTrue:[ ^ VDBIconLibrary threadGroupTerminated16x16 ].

    ^ nil

    "Created: / 22-09-2014 / 22:13:03 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 30-09-2014 / 00:55:06 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

label

    | executableOrThreadGrouppId pidOrEmpty state |

    threadGroup executable notNil ifTrue:[ 

        executableOrThreadGrouppId := threadGroup executable contractTo: 30 

    ] ifFalse:[ 

        executableOrThreadGrouppId := 'thread group ', threadGroup id.

    ].

    (threadGroup type = 'process' and:[ threadGroup pid notNil ]) ifTrue:[

        pidOrEmpty := 'pid ', threadGroup pid printString , ', '.

    ].

    threadGroup isStopped ifTrue:[ 

        state := 'stopped'

    ] ifFalse:[ 

    threadGroup isRunning ifTrue:[ 

        state := 'running'

    ] ifFalse:[ 

    threadGroup isFinished ifTrue:[ 

        state := 'finished'

    ] ifFalse:[ 

    threadGroup isTerminated ifTrue:[ 

        state := 'terminated'

    ] ifFalse:[ 

        state := 'not run'

    ]]]].

    ^ '%1 [%2%3]' bindWith: executableOrThreadGrouppId 

                      with: pidOrEmpty ? ''

                      with: state

    "Created: / 22-09-2014 / 00:14:26 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 07-06-2017 / 07:47:48 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

subject

    "Return an instance of GDB object that this presenter displays."

    ^ threadGroup

    "Modified: / 05-02-2018 / 13:08:36 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

threadGroup

    ^ threadGroup

! !

!VDBThreadGroupPresenter methodsFor:'change & update'!

updateChildren

    | childrenToRemove childrenToAdd |

    children isNil ifTrue: [ ^ self ].

    childrenToRemove := children copy.

    childrenToAdd := #().

    threadGroup threads do: [:thread |  

        | child |

        child := children detect: [:each | each thread == thread ] ifNone: nil.

        child notNil ifTrue: [ 

            childrenToRemove remove: child.

            child updateChildren.

        ] ifFalse: [ 

            child := VDBThreadPresenter new

                        setThread: thread;

                        parent: self;

                        yourself.

            childrenToAdd := childrenToAdd copyWith: child.

        ].

    ].

    childrenToRemove notEmpty ifTrue: [ 

        self removeAll: childrenToRemove.

    ].

    childrenToAdd notEmpty ifTrue: [ 

        self addAll: childrenToAdd.

    ].

    "Modified: / 17-05-2021 / 16:24:15 / Jan Vrany <jan.vrany@labware.com>"

! !

!VDBThreadGroupPresenter methodsFor:'initialization'!

setThreadGroup: aGDBThreadGroup

    threadGroup := aGDBThreadGroup

    "Created: / 21-09-2014 / 23:38:56 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!VDBThreadGroupPresenter methodsFor:'printing & storing'!

printOn:aStream

    "append a printed representation of the receiver to the argument, aStream"

    super printOn:aStream.

    aStream nextPut:$(.

    threadGroup printOn:aStream.

    aStream nextPut:$).

    "Created: / 14-05-2021 / 14:34:06 / Jan Vrany <jan.vrany@labware.com>"

! !

!VDBThreadGroupPresenter methodsFor:'protocol-accessing'!

fetchChildren

    "should compute the list of children via the model.

     Be aware, that the somewhat stupid 'optimization' of how the model is fetched may lead to

     a O(n*log n) or even O(n^2) behavior here.

     *** to optimize: redefine by subClass"

    ^ threadGroup threads collect:[ :t | VDBThreadPresenter new setThread: t; parent: self ]

    "Created: / 21-09-2014 / 23:41:57 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!VDBThreadGroupPresenter methodsFor:'protocol-displaying'!

heightOn:aGC

    "/ Following is a performance optimization. We know

    "/ that label will be a string, so passing any string

    "/ would do (this in the end asks a font metrics).

    "/ 

    "/ This saves us a lot of time when system generates

    "/ a lot of events since #label sends ask GDB dof details

    height isNil ifTrue:[

        height := self heightOf:'%1 [%2%3]' on:aGC

    ].

    ^ height

    "Created: / 15-01-2018 / 09:54:22 / jv"

! !

!VDBThreadGroupPresenter methodsFor:'testing'!

isThreadGroupPresenter

    ^ true

    "Created: / 21-09-2014 / 23:54:23 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!VDBThreadGroupPresenter class methodsFor:'documentation'!

version_HG

    ^ '$Changeset: <not expanded> $'

! !