author | Claus Gittinger <cg@exept.de> |
Thu, 12 Sep 2013 15:17:56 +0200 | |
changeset 3246 | d167d433053c |
parent 2903 | f8a9324436cc |
child 3306 | 69517757bffa |
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-resources'! |
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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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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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only ask once for resources (remember locally)
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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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! |
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1058 | 165 |
labelResources |
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"if not already loaded, get the common label resourcePack and return it" |
1058 | 167 |
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168 |
LabelResources isNil ifTrue:[ |
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1956
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169 |
LabelResources := self classResources. |
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]. |
171 |
^ LabelResources |
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! ! |
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173 |
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174 |
!ResourceRetriever methodsFor:'accessing'! |
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176 |
className |
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"return the value of the instance variable 'className' (automatically generated)" |
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^ className |
180 |
! |
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182 |
className:something |
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"set the class which provides the resources |
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" |
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185 |
className := something. |
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186 |
resourceOwner := nil. |
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187 |
! |
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188 |
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1641 | 189 |
icon:anIcon string:aLabelOrNil |
190 |
resource := anIcon. |
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191 |
labelText := aLabelOrNil. |
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! |
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193 |
||
1058 | 194 |
labelText |
195 |
^ labelText |
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196 |
! |
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197 |
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198 |
labelText:aText |
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199 |
labelText := aText |
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200 |
! |
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201 |
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202 |
selector |
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"return the value of the instance variable 'selector' (automatically generated)" |
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||
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^ selector |
206 |
! |
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selector:something |
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"set the value of the instance variable 'selector' (automatically generated)" |
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211 |
selector := something. |
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! |
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214 |
value |
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"returns the value assigned to resource or nil" |
216 |
||
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|resource| |
218 |
||
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(resource := self resource value) isNil ifTrue:[ |
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^ labelText |
221 |
]. |
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222 |
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223 |
(labelText notNil and:[resource isImage]) ifTrue:[ |
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224 |
^ LabelAndIcon icon:resource string:labelText |
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]. |
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^ resource |
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228 |
"Modified: / 31.10.1997 / 12:10:05 / cg" |
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229 |
! ! |
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230 |
||
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!ResourceRetriever methodsFor:'accessing-resource'! |
1058 | 232 |
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233 |
findGuiResourcesIn:aResourceContainer |
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2124 | 234 |
"setup a resource owner" |
235 |
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2e8748cc844b
care for nameSpace when accessing resources from a class
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236 |
|ns cls| |
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237 |
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className isNil ifTrue:[ |
239 |
resourceOwner := aResourceContainer |
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1932
2e8748cc844b
care for nameSpace when accessing resources from a class
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parents:
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diff
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240 |
] ifFalse:[ |
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241 |
ns := aResourceContainer class nameSpace. |
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242 |
ns ~~ Smalltalk ifTrue:[ |
1934 | 243 |
ns isNameSpace ifTrue:[ |
1933 | 244 |
cls := ns at:className asSymbol. |
245 |
] ifFalse:[ |
|
246 |
cls := ns privateClassesAt:className asSymbol. |
|
247 |
]. |
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1932
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care for nameSpace when accessing resources from a class
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248 |
cls notNil ifTrue:[ |
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249 |
className := cls name. |
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250 |
] |
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diff
changeset
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251 |
]. |
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252 |
] |
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! |
254 |
||
255 |
resource |
|
2124 | 256 |
"returns a form assigned to resource or nil" |
257 |
||
1058 | 258 |
|img cls| |
259 |
||
2903 | 260 |
resource notNil ifTrue:[ |
261 |
^ resource |
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262 |
]. |
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1641 | 263 |
|
1058 | 264 |
selector isNil ifTrue:[ |
2903 | 265 |
^ nil |
1058 | 266 |
]. |
267 |
||
268 |
resourceOwner isNil ifTrue:[ |
|
269 |
(resourceOwner := Smalltalk resolveName:className inClass:self class) isNil ifTrue:[ |
|
270 |
^ nil |
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271 |
] |
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272 |
]. |
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273 |
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274 |
(resourceOwner respondsTo:#visualFor:) ifTrue:[ |
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275 |
(img := resourceOwner visualFor:selector) notNil ifTrue:[ |
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276 |
^ img |
|
277 |
] |
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278 |
]. |
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279 |
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280 |
(resourceOwner respondsTo:selector) ifTrue:[ |
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281 |
^ resourceOwner perform:selector |
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282 |
]. |
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283 |
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284 |
resourceOwner isClass ifFalse:[ |
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285 |
cls := resourceOwner class. |
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286 |
||
2903 | 287 |
(cls respondsTo:#visualFor:) ifTrue:[ |
288 |
(img := cls visualFor:selector) notNil ifTrue:[ |
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289 |
^ img |
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290 |
] |
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291 |
]. |
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(cls respondsTo:selector) ifTrue:[ |
293 |
^ cls perform:selector |
|
2903 | 294 |
]. |
1058 | 295 |
]. |
296 |
^ nil |
|
297 |
||
298 |
"Modified: / 31.10.1997 / 12:09:52 / cg" |
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299 |
! ! |
|
300 |
||
301 |
!ResourceRetriever methodsFor:'converting'! |
|
302 |
||
303 |
fromLiteralArrayEncoding:anArray |
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2903 | 304 |
"read my values from an encoding." |
305 |
||
1058 | 306 |
className := anArray at: 2. |
307 |
selector := anArray at: 3. |
|
308 |
||
309 |
anArray size == 4 ifTrue:[ |
|
310 |
labelText := anArray at:4 |
|
311 |
]. |
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312 |
resourceOwner := nil. |
|
313 |
! |
|
314 |
||
315 |
literalArrayEncoding |
|
316 |
"encode myself as an array, from which a copy of the receiver can be |
|
317 |
reconstructed with #decodeAsLiteralArray. |
|
318 |
||
319 |
The encoding is: |
|
320 |
(#ResourceRetriever className selector) |
|
321 |
||
322 |
or if labelText not nil: |
|
323 |
(#ResourceRetriever className selector labelText) |
|
324 |
" |
|
325 |
|myClassName| |
|
326 |
||
327 |
myClassName := self class name. |
|
328 |
labelText isNil ifTrue:[ |
|
329 |
^ Array with:myClassName with:className with:selector |
|
330 |
] ifFalse:[ |
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331 |
^ Array with:myClassName with:className with:selector with:labelText |
|
332 |
]. |
|
333 |
||
334 |
"Modified: / 26.1.1998 / 13:52:43 / cg" |
|
335 |
! ! |
|
336 |
||
337 |
!ResourceRetriever methodsFor:'testing'! |
|
338 |
||
339 |
isDefined |
|
340 |
"returns true if resource exists |
|
341 |
" |
|
342 |
selector notNil ifTrue:[ |
|
343 |
^ (resourceOwner notNil or:[className notNil]) |
|
344 |
]. |
|
345 |
^ false |
|
346 |
! |
|
347 |
||
348 |
notDefined |
|
349 |
"returns false if resource is not defined |
|
350 |
" |
|
351 |
self isDefined ifTrue:[^ false ] |
|
352 |
ifFalse:[^ true ] |
|
353 |
! ! |
|
354 |
||
355 |
!ResourceRetriever class methodsFor:'documentation'! |
|
356 |
||
357 |
version |
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2903 | 358 |
^ '$Header: /cvs/stx/stx/libview2/ResourceRetriever.st,v 1.14 2011-03-24 15:55:44 stefan Exp $' |
359 |
! |
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360 |
||
361 |
version_CVS |
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362 |
^ '$Header: /cvs/stx/stx/libview2/ResourceRetriever.st,v 1.14 2011-03-24 15:55:44 stefan Exp $' |
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1058 | 363 |
! ! |