mirror of
https://github.com/lxsang/Diya-API.git
synced 2024-12-28 12:28:21 +01:00
31 lines
557 B
Smalltalk
31 lines
557 B
Smalltalk
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Class {
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#name : #DiyaRootNode,
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#superclass : #DiyaNode,
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#classVars : [
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'singleton'
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],
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#category : #'Diya-Graphics'
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}
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{ #category : #'instance creation' }
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DiyaRootNode class >> new [
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self error: 'Please use uniqueInstance'
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]
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{ #category : #'instance creation' }
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DiyaRootNode class >> reset [
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singleton := nil
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]
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{ #category : #'instance creation' }
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DiyaRootNode class >> uniqueInstance [
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singleton ifNil: [ singleton := super new].
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^singleton
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]
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{ #category : #initialization }
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DiyaRootNode >> initialize [
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super initialize.
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parent := self.
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]
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