author | Claus Gittinger <cg@exept.de> |
Fri, 12 Mar 2004 13:43:46 +0100 | |
changeset 1956 | 7bfc5c973c1b |
parent 1934 | c069a501a14c |
child 2021 | e5b13637d00a |
permissions | -rw-r--r-- |
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" |
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COPYRIGHT (c) 1997 by eXept Software AG |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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"{ Package: 'stx:libview2' }" |
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Object subclass:#ResourceRetriever |
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instanceVariableNames:'className resourceOwner selector labelText resource' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'Interface-Support-UI' |
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! |
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ResourceRetriever class instanceVariableNames:'LabelResources' |
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" |
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No other class instance variables are inherited by this class. |
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" |
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! |
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!ResourceRetriever class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1997 by eXept Software AG |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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! |
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documentation |
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" |
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ST80 compatibility class. |
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The class is not completed yet and certainly not bug free. |
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Also, it is not guaranteed that all winSpecs are understood. |
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Notice: |
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this class was implemented using protocol information |
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from alpha testers, literature and by reading public domain code |
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- it may not be complete or compatible to |
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the corresponding ST-80 class. |
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If you encounter any incompatibilities, please forward a note |
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describing the incompatibility verbal (i.e. no code) to the ST/X team. |
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[author:] |
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Claus Atzkern |
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[see also:] |
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Application |
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Menu |
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MenuItem |
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" |
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! ! |
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!ResourceRetriever class methodsFor:'instance creation'! |
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icon:anIcon |
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^ self icon:anIcon string:nil |
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! |
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icon:anIcon string:aLabelOrNil |
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|resource| |
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resource := self new. |
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resource icon:anIcon string:aLabelOrNil. |
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^ resource |
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! ! |
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!ResourceRetriever class methodsFor:'accessing resource'! |
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findResourceLabel:label in:aResourceOwner |
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"look for a string |
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in aResourceOwner, |
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in class of aResourceOwner, |
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in resources of class of aResourceOwner, |
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and finally in my label resources |
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" |
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|resources| |
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aResourceOwner isNil ifTrue: [^label]. |
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label isSymbol ifTrue:[ |
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(aResourceOwner respondsTo: label) ifTrue:[ |
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^ aResourceOwner perform:label |
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]. |
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(aResourceOwner isClass not |
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and: [aResourceOwner class respondsTo: label]) |
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ifTrue:[ |
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^ aResourceOwner perform:label |
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]. |
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]. |
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resources := aResourceOwner perform:#resources ifNotUnderstood:nil. |
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resources notNil ifTrue:[ |
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^ resources string:label |
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]. |
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^ self labelResources string:label |
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! |
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findResourceLabel:label in:aResourceOwner rememberResourcesIn:aValueHolderOrNil |
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"look for a string |
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in aResourceOwner, |
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in class of aResourceOwner, |
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in resources of class of aResourceOwner, |
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and finally in my label resources |
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" |
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|resources| |
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aResourceOwner isNil ifTrue: [^label]. |
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label isSymbol ifTrue:[ |
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(aResourceOwner respondsTo: label) ifTrue:[ |
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^ aResourceOwner perform:label |
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]. |
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|
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(aResourceOwner isClass not |
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and: [aResourceOwner class respondsTo: label]) |
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only ask once for resources (remember locally)
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ifTrue:[ |
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^ aResourceOwner perform:label |
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]. |
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]. |
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resources := aValueHolderOrNil value. |
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resources isNil ifTrue:[ |
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resources := aResourceOwner perform:#resources ifNotUnderstood:nil. |
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resources notNil ifTrue:[ |
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aValueHolderOrNil notNil ifTrue:[ |
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aValueHolderOrNil value:resources |
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] |
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] |
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]. |
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resources notNil ifTrue:[ |
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^ resources string:label |
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]. |
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^ self labelResources string:label |
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! |
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labelResources |
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"if not already loaded, get the common label resourcePack and return it" |
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LabelResources isNil ifTrue:[ |
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LabelResources := self classResources. |
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]. |
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^ LabelResources |
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! ! |
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!ResourceRetriever methodsFor:'accessing'! |
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className |
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"return the value of the instance variable 'className' (automatically generated)" |
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^ className |
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! |
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className:something |
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"set the class which provides the resources |
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" |
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className := something. |
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resourceOwner := nil. |
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! |
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icon:anIcon string:aLabelOrNil |
194 |
resource := anIcon. |
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labelText := aLabelOrNil. |
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! |
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labelText |
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^ labelText |
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! |
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labelText:aText |
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labelText := aText |
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! |
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selector |
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"return the value of the instance variable 'selector' (automatically generated)" |
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^ selector |
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! |
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selector:something |
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"set the value of the instance variable 'selector' (automatically generated)" |
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selector := something. |
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! |
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value |
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"returns the value assigned to resource or nil |
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" |
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|resource| |
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(resource := self resource) isNil ifTrue:[ |
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^ labelText |
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]. |
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(labelText notNil and:[resource isImage]) ifTrue:[ |
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^ LabelAndIcon icon:resource string:labelText |
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]. |
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^ resource |
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"Modified: / 31.10.1997 / 12:10:05 / cg" |
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! ! |
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!ResourceRetriever methodsFor:'accessing-resource'! |
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findGuiResourcesIn:aResourceContainer |
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"setup a resource owner |
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" |
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|ns cls| |
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className isNil ifTrue:[ |
243 |
resourceOwner := aResourceContainer |
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care for nameSpace when accessing resources from a class
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] ifFalse:[ |
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ns := aResourceContainer class nameSpace. |
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ns ~~ Smalltalk ifTrue:[ |
1934 | 247 |
ns isNameSpace ifTrue:[ |
1933 | 248 |
cls := ns at:className asSymbol. |
249 |
] ifFalse:[ |
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cls := ns privateClassesAt:className asSymbol. |
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]. |
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care for nameSpace when accessing resources from a class
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cls notNil ifTrue:[ |
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className := cls name. |
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] |
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]. |
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] |
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! |
258 |
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259 |
resource |
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"returns a form assigned to resource or nil |
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" |
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262 |
|img cls| |
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1641 | 264 |
resource notNil ifTrue:[ ^ resource]. |
265 |
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selector isNil ifTrue:[ |
267 |
^nil |
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]. |
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269 |
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270 |
resourceOwner isNil ifTrue:[ |
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(resourceOwner := Smalltalk resolveName:className inClass:self class) isNil ifTrue:[ |
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^ nil |
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] |
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]. |
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276 |
(resourceOwner respondsTo:#visualFor:) ifTrue:[ |
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(img := resourceOwner visualFor:selector) notNil ifTrue:[ |
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^ img |
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] |
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]. |
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281 |
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282 |
(resourceOwner respondsTo:selector) ifTrue:[ |
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^ resourceOwner perform:selector |
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]. |
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resourceOwner isClass ifFalse:[ |
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cls := resourceOwner class. |
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288 |
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289 |
(cls respondsTo:selector) ifTrue:[ |
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^ cls perform:selector |
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] |
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]. |
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^ nil |
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"Modified: / 31.10.1997 / 12:09:52 / cg" |
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296 |
! ! |
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297 |
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298 |
!ResourceRetriever methodsFor:'converting'! |
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299 |
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300 |
fromLiteralArrayEncoding:anArray |
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"read my values from an encoding. |
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302 |
" |
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303 |
className := anArray at: 2. |
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304 |
selector := anArray at: 3. |
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305 |
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306 |
anArray size == 4 ifTrue:[ |
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labelText := anArray at:4 |
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308 |
]. |
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309 |
resourceOwner := nil. |
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310 |
||
311 |
! |
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312 |
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313 |
literalArrayEncoding |
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314 |
"encode myself as an array, from which a copy of the receiver can be |
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reconstructed with #decodeAsLiteralArray. |
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316 |
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317 |
The encoding is: |
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318 |
(#ResourceRetriever className selector) |
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319 |
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320 |
or if labelText not nil: |
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321 |
(#ResourceRetriever className selector labelText) |
|
322 |
" |
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323 |
|myClassName| |
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324 |
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325 |
myClassName := self class name. |
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326 |
labelText isNil ifTrue:[ |
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327 |
^ Array with:myClassName with:className with:selector |
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328 |
] ifFalse:[ |
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329 |
^ Array with:myClassName with:className with:selector with:labelText |
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330 |
]. |
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331 |
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332 |
"Modified: / 26.1.1998 / 13:52:43 / cg" |
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333 |
! ! |
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334 |
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335 |
!ResourceRetriever methodsFor:'testing'! |
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336 |
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337 |
isDefined |
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338 |
"returns true if resource exists |
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339 |
" |
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340 |
selector notNil ifTrue:[ |
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341 |
^ (resourceOwner notNil or:[className notNil]) |
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]. |
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^ false |
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344 |
! |
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345 |
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346 |
notDefined |
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347 |
"returns false if resource is not defined |
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348 |
" |
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349 |
self isDefined ifTrue:[^ false ] |
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350 |
ifFalse:[^ true ] |
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351 |
! ! |
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352 |
||
353 |
!ResourceRetriever class methodsFor:'documentation'! |
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354 |
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355 |
version |
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1956
7bfc5c973c1b
classResources now understood by all classes
Claus Gittinger <cg@exept.de>
parents:
1934
diff
changeset
|
356 |
^ '$Header: /cvs/stx/stx/libview2/ResourceRetriever.st,v 1.10 2004-03-12 12:43:07 cg Exp $' |
1058 | 357 |
! ! |