author | Claus Gittinger <cg@exept.de> |
Fri, 22 Dec 2017 16:38:45 +0100 | |
changeset 4035 | d7c9a02b0692 |
parent 4018 | 5cfaf6f42f16 |
permissions | -rw-r--r-- |
1058 | 1 |
" |
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COPYRIGHT (c) 1997 by eXept Software AG |
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All Rights Reserved |
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||
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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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"{ NameSpace: Smalltalk }" |
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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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||
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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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|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 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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|
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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 isNil ifTrue:[ |
152 |
resources := aResourceOwner class perform:#classResources ifNotUnderstood:nil. |
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]. |
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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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159 |
]. |
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resources notNil ifTrue:[ |
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^ resources string:label |
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162 |
]. |
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^ self labelResources string:label |
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165 |
! |
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166 |
|
1058 | 167 |
labelResources |
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168 |
"if not already loaded, get the common label resourcePack and return it" |
1058 | 169 |
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170 |
LabelResources isNil ifTrue:[ |
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1956
7bfc5c973c1b
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171 |
LabelResources := self classResources. |
1058 | 172 |
]. |
173 |
^ LabelResources |
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174 |
! ! |
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175 |
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176 |
!ResourceRetriever methodsFor:'accessing'! |
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177 |
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178 |
className |
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179 |
"return the value of the instance variable 'className' (automatically generated)" |
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180 |
||
1447 | 181 |
^ className |
182 |
! |
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1058 | 183 |
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184 |
className:something |
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185 |
"set the class which provides the resources |
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186 |
" |
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187 |
className := something. |
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188 |
resourceOwner := nil. |
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189 |
! |
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190 |
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1641 | 191 |
icon:anIcon string:aLabelOrNil |
192 |
resource := anIcon. |
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193 |
labelText := aLabelOrNil. |
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194 |
! |
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195 |
||
1058 | 196 |
labelText |
197 |
^ labelText |
|
198 |
! |
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199 |
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200 |
labelText:aText |
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201 |
labelText := aText |
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202 |
! |
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203 |
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204 |
selector |
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205 |
"return the value of the instance variable 'selector' (automatically generated)" |
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206 |
||
1447 | 207 |
^ selector |
208 |
! |
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210 |
selector:something |
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211 |
"set the value of the instance variable 'selector' (automatically generated)" |
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212 |
||
213 |
selector := something. |
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214 |
! |
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215 |
||
216 |
value |
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2124 | 217 |
"returns the value assigned to resource or nil" |
218 |
||
1058 | 219 |
|resource| |
220 |
||
2021 | 221 |
(resource := self resource value) isNil ifTrue:[ |
1058 | 222 |
^ labelText |
223 |
]. |
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224 |
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225 |
(labelText notNil and:[resource isImage]) ifTrue:[ |
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226 |
^ LabelAndIcon icon:resource string:labelText |
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227 |
]. |
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^ resource |
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230 |
"Modified: / 31.10.1997 / 12:10:05 / cg" |
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231 |
! ! |
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232 |
||
1397 | 233 |
!ResourceRetriever methodsFor:'accessing-resource'! |
1058 | 234 |
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235 |
findGuiResourcesIn:aResourceContainer |
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4035 | 236 |
"setup the resource owner" |
2124 | 237 |
|
1932
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care for nameSpace when accessing resources from a class
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238 |
|ns cls| |
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239 |
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1058 | 240 |
className isNil ifTrue:[ |
241 |
resourceOwner := aResourceContainer |
|
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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242 |
] ifFalse:[ |
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diff
changeset
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243 |
ns := aResourceContainer class nameSpace. |
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diff
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|
244 |
ns ~~ Smalltalk ifTrue:[ |
1934 | 245 |
ns isNameSpace ifTrue:[ |
1933 | 246 |
cls := ns at:className asSymbol. |
247 |
] ifFalse:[ |
|
248 |
cls := ns privateClassesAt:className asSymbol. |
|
249 |
]. |
|
1932
2e8748cc844b
care for nameSpace when accessing resources from a class
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diff
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|
250 |
cls notNil ifTrue:[ |
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251 |
className := cls name. |
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252 |
] |
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diff
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|
253 |
]. |
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254 |
] |
1058 | 255 |
! |
256 |
||
257 |
resource |
|
2124 | 258 |
"returns a form assigned to resource or nil" |
259 |
||
1058 | 260 |
|img cls| |
261 |
||
2903 | 262 |
resource notNil ifTrue:[ |
263 |
^ resource |
|
264 |
]. |
|
1641 | 265 |
|
1058 | 266 |
selector isNil ifTrue:[ |
2903 | 267 |
^ nil |
1058 | 268 |
]. |
269 |
||
270 |
resourceOwner isNil ifTrue:[ |
|
271 |
(resourceOwner := Smalltalk resolveName:className inClass:self class) isNil ifTrue:[ |
|
272 |
^ nil |
|
273 |
] |
|
274 |
]. |
|
275 |
||
276 |
(resourceOwner respondsTo:#visualFor:) ifTrue:[ |
|
277 |
(img := resourceOwner visualFor:selector) notNil ifTrue:[ |
|
278 |
^ img |
|
279 |
] |
|
280 |
]. |
|
281 |
||
282 |
(resourceOwner respondsTo:selector) ifTrue:[ |
|
283 |
^ resourceOwner perform:selector |
|
284 |
]. |
|
285 |
||
286 |
resourceOwner isClass ifFalse:[ |
|
287 |
cls := resourceOwner class. |
|
288 |
||
2903 | 289 |
(cls respondsTo:#visualFor:) ifTrue:[ |
290 |
(img := cls visualFor:selector) notNil ifTrue:[ |
|
291 |
^ img |
|
292 |
] |
|
293 |
]. |
|
1058 | 294 |
(cls respondsTo:selector) ifTrue:[ |
295 |
^ cls perform:selector |
|
2903 | 296 |
]. |
1058 | 297 |
]. |
298 |
^ nil |
|
299 |
||
300 |
"Modified: / 31.10.1997 / 12:09:52 / cg" |
|
301 |
! ! |
|
302 |
||
303 |
!ResourceRetriever methodsFor:'converting'! |
|
304 |
||
305 |
fromLiteralArrayEncoding:anArray |
|
2903 | 306 |
"read my values from an encoding." |
307 |
||
1058 | 308 |
className := anArray at: 2. |
309 |
selector := anArray at: 3. |
|
310 |
||
311 |
anArray size == 4 ifTrue:[ |
|
312 |
labelText := anArray at:4 |
|
313 |
]. |
|
314 |
resourceOwner := nil. |
|
315 |
! |
|
316 |
||
317 |
literalArrayEncoding |
|
318 |
"encode myself as an array, from which a copy of the receiver can be |
|
319 |
reconstructed with #decodeAsLiteralArray. |
|
320 |
||
321 |
The encoding is: |
|
322 |
(#ResourceRetriever className selector) |
|
323 |
||
324 |
or if labelText not nil: |
|
325 |
(#ResourceRetriever className selector labelText) |
|
326 |
" |
|
327 |
|myClassName| |
|
328 |
||
329 |
myClassName := self class name. |
|
330 |
labelText isNil ifTrue:[ |
|
331 |
^ Array with:myClassName with:className with:selector |
|
332 |
] ifFalse:[ |
|
333 |
^ Array with:myClassName with:className with:selector with:labelText |
|
334 |
]. |
|
335 |
||
336 |
"Modified: / 26.1.1998 / 13:52:43 / cg" |
|
337 |
! ! |
|
338 |
||
339 |
!ResourceRetriever methodsFor:'testing'! |
|
340 |
||
341 |
isDefined |
|
4018 | 342 |
"returns true if resource exists" |
343 |
||
344 |
^ selector notNil and:[resourceOwner notNil or:[className notNil]]. |
|
345 |
||
346 |
"Modified: / 25-09-2017 / 17:17:57 / stefan" |
|
1058 | 347 |
! |
348 |
||
349 |
notDefined |
|
4018 | 350 |
"returns false if resource is not defined" |
351 |
||
352 |
^ self isDefined not. |
|
353 |
||
354 |
"Modified: / 25-09-2017 / 17:17:03 / stefan" |
|
1058 | 355 |
! ! |
356 |
||
357 |
!ResourceRetriever class methodsFor:'documentation'! |
|
358 |
||
359 |
version |
|
3846 | 360 |
^ '$Header$' |
2903 | 361 |
! |
362 |
||
363 |
version_CVS |
|
3846 | 364 |
^ '$Header$' |
1058 | 365 |
! ! |
3306 | 366 |