author | Claus Gittinger <cg@exept.de> |
Fri, 22 May 1998 15:03:58 +0200 | |
changeset 944 | 4ef99f8da24f |
parent 943 | 40c17a6db86d |
child 946 | 94682a54c197 |
permissions | -rw-r--r-- |
442 | 1 |
PluggableAdaptor subclass:#TypeConverter |
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instanceVariableNames:'' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'Interface-Support-Models' |
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! |
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!TypeConverter class methodsFor:'documentation'! |
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documentation |
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" |
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a typeConverter can be used as an editFields model |
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(remember, that an editField expects a string in its model), |
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to convert the fields string value to some object and vice versa. |
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Its main use is when building interfaces with inputFields, |
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where the datum to be entered is a non-string and you |
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want to have the entered value be converted automatically. |
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(and vice versa, to convert the datum to a string). |
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No real new functionality is added here - all is inherited |
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from PluggableAdapter; however, some specialized instance creation |
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methods are added here.. |
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Notice: |
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this class was implemented using protocol information |
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from alpha testers - 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 Gittinger |
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" |
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! |
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examples |
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" |
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convert a number to a string: |
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[exBegin] |
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|v t i| |
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v := 1 asValue. |
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t := HorizontalPanelView new. |
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t extent:200@50. |
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t horizontalLayout:#fitSpace. |
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i := EditField in:t. |
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i model:(TypeConverter onNumberValue:v). |
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t open. |
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(Delay forSeconds:3) wait. |
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v value:2. |
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[exEnd] |
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convert a number to a string with range: |
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[exBegin] |
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|v t i| |
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v := 1 asValue. |
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t := HorizontalPanelView new. |
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t extent:200@50. |
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t horizontalLayout:#fitSpace. |
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i := EditField in:t. |
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i model:(TypeConverter onNumberValue:v minValue:0 maxValue:100). |
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t open. |
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(Delay forSeconds:3) wait. |
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v value:2. |
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[exEnd] |
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convert a date to a string: |
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[exBegin] |
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|d v| |
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v := nil asValue. |
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d := DialogBox new. |
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d addInputFieldOn:(TypeConverter onDateValue:v). |
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d addOkButton. |
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d open. |
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d accepted ifTrue:[ |
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Transcript showCR:v value |
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] |
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[exEnd] |
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" |
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! ! |
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!TypeConverter class methodsFor:'instance creation'! |
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onDateValue:aValueHolder |
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"create and return a typeConverter, which retrieves |
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a date via #value, and converts |
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a date-string to a date via #value:. |
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Useful as an editFields model, which operates on some |
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date value (or aspectAdaptor, which adapts to a numeric slot)" |
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^ (self on:aValueHolder) dateToText |
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"Modified: 21.2.1997 / 18:46:11 / cg" |
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"Created: 4.3.1997 / 12:30:49 / cg" |
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! |
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onNumberValue:aValueHolder |
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"create and return a typeConverter, which retrieves |
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a values string representation via #value, and converts |
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a number-string to a value via #value:. |
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Useful as an editFields model, which operates on some |
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numeric value (or aspectAdaptor, which adapts to a numeric slot)" |
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^ (self on:aValueHolder) numberToText |
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"Modified: 21.2.1997 / 18:46:11 / cg" |
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! |
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onNumberValue:aValueHolder format:formatString |
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"create and return a typeConverter, which retrieves |
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a values string representation via #value, and converts |
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a number-string to a value via #value:. |
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Useful as an editFields model, which operates on some |
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numeric value (or aspectAdaptor, which adapts to a numeric slot)" |
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^ (self on:aValueHolder) numberToTextFormattedBy:formatString |
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"Created: 4.3.1997 / 11:51:25 / cg" |
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"Modified: 4.3.1997 / 11:51:41 / cg" |
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! |
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onNumberValue:aValueHolder minValue:min maxValue:max |
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"create and return a typeConverter, which retrieves |
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a values string representation via #value, and converts |
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a number-string to a value via #value:. |
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Useful as an editFields model, which operates on some |
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numeric value (or aspectAdaptor, which adapts to a numeric slot)" |
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^ (self on:aValueHolder) numberToTextMinValue:min maxValue:max |
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"Created: 4.3.1997 / 11:51:25 / cg" |
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"Modified: 4.3.1997 / 11:51:41 / cg" |
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! |
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onNumberValue:aValueHolder postDecimalDigits:numPostDecimalDigits |
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"create and return a typeConverter, which retrieves |
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a values string representation via #value, and converts |
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a number-string to a value via #value:. |
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Useful as an editFields model, which operates on some |
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numeric value (or aspectAdaptor, which adapts to a numeric slot)" |
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|
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^ (self on:aValueHolder) numberToText:numPostDecimalDigits |
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|
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"Modified: / 21.2.1997 / 18:46:11 / cg" |
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"Created: / 5.12.1997 / 02:55:18 / cg" |
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! |
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onSymbolValue:aValueHolder |
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"create and return a typeConverter, which retrieves |
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a symbol-values string representation via #value, and converts |
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a string to a symbol via #value:. |
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Useful as an editFields model, which operates on some |
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numeric value (or aspectAdaptor, which adapts to a numeric slot)" |
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^ (self on:aValueHolder) symbolOrNil |
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"Modified: 21.2.1997 / 18:46:11 / cg" |
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! |
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onTimeValue:aValueHolder |
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"create and return a typeConverter, which retrieves |
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a time via #value, and converts |
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a time-string to a time via #value:. |
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Useful as an editFields model, which operates on some |
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date value (or aspectAdaptor, which adapts to a numeric slot)" |
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^ (self on:aValueHolder) timeToText |
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"Modified: 21.2.1997 / 18:46:11 / cg" |
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"Created: 4.3.1997 / 11:52:10 / cg" |
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! ! |
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!TypeConverter methodsFor:'accessing'! |
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subject |
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"return the cobverted subject" |
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^ model |
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"Created: 21.2.1997 / 18:45:12 / cg" |
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! |
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value:newValue |
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"convert and change" |
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self setValue:newValue |
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"Created: 21.2.1997 / 18:45:39 / cg" |
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! ! |
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!TypeConverter methodsFor:'standard converters'! |
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arrayLiteralOrSymbolOrNil |
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"setup the converter to convert from a string to either a literal |
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Array or a symbol and vice versa. |
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Invalid strings (i.e. empty) are converted to nil; |
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nil values are converted to an empty string. |
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This is a very special converter (for the GUI builder) |
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- probably not belonging to here" |
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|
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self |
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getBlock:[:model | |
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|symbolValue| |
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(symbolValue := model value) isNil ifTrue:[ |
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String new |
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] ifFalse:[ |
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symbolValue isArray ifTrue:[ |
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symbolValue storeString |
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] ifFalse:[ |
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'#' , symbolValue asString |
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] |
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]] |
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putBlock: |
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[:model :string | |
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|value s| |
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|
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string isEmpty ifTrue:[ |
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value := nil |
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] ifFalse:[ |
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s := string withoutSeparators. |
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(s startsWith:'#(') ifTrue:[ |
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value := Array readFrom:s onError:nil |
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] ifFalse:[ |
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(s startsWith:'#') ifTrue:[ |
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diff
changeset
|
237 |
s := s copyFrom:2 |
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
238 |
]. |
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
239 |
value := s asSymbol |
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
240 |
] |
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
241 |
]. |
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
242 |
model value:value] |
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
243 |
|
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
244 |
updateBlock: [:m :a :p | true] |
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
245 |
|
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
246 |
"Modified: / 26.10.1997 / 13:50:32 / cg" |
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
247 |
"Created: / 26.10.1997 / 14:01:02 / cg" |
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
248 |
! |
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
249 |
|
487 | 250 |
dateOrNil |
251 |
"setup the converter to convert from a string to a date |
|
722
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
252 |
and vice versa. Invalid dates are converted to nil; likewise, |
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
253 |
a nil date is converted to an empty string." |
487 | 254 |
|
255 |
self |
|
256 |
getBlock:[:model | |
|
257 |
|date| |
|
258 |
||
259 |
(date := model value) isNil ifTrue:[ |
|
260 |
'' |
|
261 |
] ifFalse:[ |
|
262 |
date printString |
|
263 |
]] |
|
264 |
||
265 |
putBlock: |
|
266 |
[:model :string | |
|
267 |
||
268 |
|value| |
|
269 |
||
270 |
string isEmpty ifTrue:[ |
|
271 |
value := nil |
|
272 |
] ifFalse:[ |
|
273 |
value := Date readFrom:string onError:nil |
|
274 |
]. |
|
275 |
model value:value] |
|
276 |
||
277 |
updateBlock: [:m :a :p | true] |
|
278 |
||
722
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
279 |
"Created: / 4.3.1997 / 11:56:36 / cg" |
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
280 |
"Modified: / 26.10.1997 / 13:51:06 / cg" |
487 | 281 |
! |
282 |
||
486 | 283 |
dateToText |
284 |
"setup the converter to convert from a string to a date |
|
722
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
285 |
and vice versa. Nil is converted to todays date-string, |
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
286 |
likewise, an empty string is converted back to todays date." |
486 | 287 |
|
288 |
self |
|
289 |
getBlock:[:model | |
|
290 |
|date| |
|
291 |
||
292 |
(date := model value) isNil ifTrue:[ |
|
293 |
Date today printString |
|
294 |
] ifFalse:[ |
|
295 |
date printString |
|
296 |
]] |
|
297 |
||
298 |
putBlock: |
|
299 |
[:model :string | |
|
300 |
||
301 |
|value| |
|
302 |
||
303 |
string isEmpty ifTrue:[ |
|
304 |
value := Date today |
|
305 |
] ifFalse:[ |
|
306 |
value := Date readFrom:string onError:Date today |
|
307 |
]. |
|
308 |
model value:value] |
|
309 |
||
310 |
updateBlock: [:m :a :p | true] |
|
311 |
||
722
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
312 |
"Created: / 4.3.1997 / 12:32:19 / cg" |
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
313 |
"Modified: / 26.10.1997 / 13:52:00 / cg" |
486 | 314 |
! |
315 |
||
508 | 316 |
number |
317 |
"setup the converter to convert from a string to a number |
|
318 |
and vice versa. Invalid numbers are converted to nil." |
|
319 |
||
320 |
self numberToText |
|
321 |
||
322 |
"Created: 4.4.1997 / 12:46:14 / cg" |
|
323 |
! |
|
324 |
||
442 | 325 |
numberOrNil |
326 |
"setup the converter to convert from a string to a number |
|
327 |
and vice versa. Invalid numbers are converted to nil." |
|
328 |
||
329 |
self |
|
330 |
getBlock:[:model | |
|
331 |
|numericValue| |
|
332 |
||
333 |
(numericValue := model value) isNil ifTrue:[ |
|
334 |
String new |
|
335 |
] ifFalse:[ |
|
336 |
numericValue printString |
|
337 |
]] |
|
338 |
||
339 |
putBlock: |
|
340 |
[:model :string | |
|
341 |
||
342 |
|value| |
|
343 |
||
943 | 344 |
string notEmpty ifTrue:[ |
447 | 345 |
value := Number readFrom:string onError:nil |
442 | 346 |
]. |
347 |
model value:value] |
|
348 |
||
349 |
updateBlock: [:m :a :p | true] |
|
350 |
||
351 |
"Created: 21.2.1997 / 18:58:38 / cg" |
|
352 |
! |
|
353 |
||
726 | 354 |
numberOrSymbolOrNil |
355 |
"setup the converter to convert from a string to either a numeric literal |
|
356 |
or a symbol and vice versa. |
|
357 |
Invalid strings (i.e. empty) are converted to nil; |
|
358 |
nil values are converted to an empty string. |
|
359 |
This is a very special converter (for the GUI builder) |
|
360 |
- probably not belonging to here" |
|
361 |
||
362 |
self |
|
363 |
getBlock:[:model | |
|
364 |
|litValue| |
|
365 |
||
366 |
(litValue := model value) isNil ifTrue:[ |
|
367 |
String new |
|
368 |
] ifFalse:[ |
|
369 |
litValue storeString |
|
370 |
]] |
|
371 |
||
372 |
putBlock: |
|
373 |
[:model :string | |
|
374 |
||
375 |
|value s| |
|
376 |
||
377 |
string isEmpty ifTrue:[ |
|
378 |
value := nil |
|
379 |
] ifFalse:[ |
|
380 |
value := Number readFrom:string onError:nil. |
|
381 |
value isNil ifTrue:[ |
|
382 |
s := string withoutSeparators. |
|
383 |
(s startsWith:'#') ifTrue:[ |
|
384 |
s := s copyFrom:2. |
|
385 |
(s startsWith:$') ifTrue:[ |
|
386 |
s := s copyFrom:2 to:(s size - 1) |
|
387 |
]. |
|
388 |
]. |
|
389 |
value := s asSymbol |
|
390 |
] |
|
391 |
]. |
|
392 |
model value:value] |
|
393 |
||
394 |
updateBlock: [:m :a :p | true] |
|
395 |
||
396 |
"Modified: / 26.10.1997 / 13:50:32 / cg" |
|
397 |
"Created: / 29.10.1997 / 15:49:26 / cg" |
|
398 |
! |
|
399 |
||
442 | 400 |
numberToText |
401 |
"setup the converter to convert from a string to a number |
|
487 | 402 |
and vice versa." |
442 | 403 |
|
404 |
self |
|
405 |
getBlock:[:model | |
|
406 |
|numericValue| |
|
407 |
||
726 | 408 |
(numericValue := model value) isNumber ifFalse:[ |
442 | 409 |
String new |
726 | 410 |
] ifTrue:[ |
442 | 411 |
numericValue printString |
412 |
]] |
|
413 |
||
414 |
putBlock: |
|
415 |
[:model :string | |
|
416 |
||
417 |
|value| |
|
418 |
||
419 |
string isEmpty ifTrue:[ |
|
420 |
value := 0 |
|
421 |
] ifFalse:[ |
|
422 |
value := string asNumber |
|
423 |
]. |
|
424 |
model value:value] |
|
425 |
||
426 |
updateBlock: [:m :a :p | true] |
|
427 |
||
726 | 428 |
"Created: / 21.2.1997 / 18:57:05 / cg" |
429 |
"Modified: / 29.10.1997 / 15:49:21 / cg" |
|
442 | 430 |
! |
431 |
||
747
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
432 |
numberToText:numberOfPostDecimals |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
433 |
"setup the converter to convert from a string to a number |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
434 |
and vice versa." |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
435 |
|
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
436 |
self |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
437 |
getBlock:[:model | |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
438 |
|numericValue| |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
439 |
|
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
440 |
(numericValue := model value) isNumber ifFalse:[ |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
441 |
String new |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
442 |
] ifTrue:[ |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
443 |
(numericValue asFixedPoint:numberOfPostDecimals) printString |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
444 |
]] |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
445 |
|
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
446 |
putBlock: |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
447 |
[:model :string | |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
448 |
|
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
449 |
|value| |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
450 |
|
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
451 |
string isEmpty ifTrue:[ |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
452 |
value := 0 |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
453 |
] ifFalse:[ |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
454 |
value := Number readFromString:string onError:0 |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
455 |
]. |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
456 |
model value:value] |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
457 |
|
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
458 |
updateBlock: [:m :a :p | true] |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
459 |
|
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
460 |
"Created: / 5.12.1997 / 02:54:13 / cg" |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
461 |
"Modified: / 5.12.1997 / 18:21:04 / cg" |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
462 |
! |
fe0360fb81ee
added typeConverter for decimals with n digits after point
Claus Gittinger <cg@exept.de>
parents:
726
diff
changeset
|
463 |
|
442 | 464 |
numberToTextFormattedBy:formatString |
465 |
"setup the converter to convert from a string to a number |
|
466 |
and vice versa, using formatString. |
|
467 |
The formatString is currently ignored when numbers are converted |
|
468 |
from a string." |
|
469 |
||
470 |
self |
|
471 |
getBlock:[:model | |
|
472 |
|numericValue| |
|
473 |
||
474 |
(numericValue := model value) isNil ifTrue:[ |
|
475 |
String new |
|
476 |
] ifFalse:[ |
|
477 |
PrintConverter print:numericValue formattedBy:formatString |
|
478 |
]] |
|
479 |
||
480 |
putBlock: |
|
481 |
[:model :string | |
|
482 |
||
483 |
|value| |
|
484 |
||
485 |
string isEmpty ifTrue:[ |
|
486 |
value := 0 |
|
487 |
] ifFalse:[ |
|
488 |
value := string asNumber "asNumberFromFormatString:formatString" |
|
489 |
]. |
|
490 |
model value:value] |
|
491 |
||
492 |
updateBlock: [:m :a :p | true] |
|
493 |
||
494 |
"Modified: 21.2.1997 / 18:59:44 / cg" |
|
446 | 495 |
! |
496 |
||
941
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
497 |
numberToTextMinValue:minVal maxValue:maxVal |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
498 |
"setup the converter to convert from a string to a number |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
499 |
and vice versa, but clamping the number into the range." |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
500 |
|
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
501 |
self |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
502 |
getBlock:[:model | |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
503 |
|numericValue| |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
504 |
|
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
505 |
(numericValue := model value) isNil ifTrue:[ |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
506 |
String new |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
507 |
] ifFalse:[ |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
508 |
numericValue printString |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
509 |
]] |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
510 |
|
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
511 |
putBlock: |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
512 |
[:model :string | |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
513 |
|
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
514 |
|value| |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
515 |
|
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
516 |
string isEmpty ifTrue:[ |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
517 |
value := 0 |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
518 |
] ifFalse:[ |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
519 |
value := string asNumber |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
520 |
]. |
942
54949af3f3c1
number-in-range may have nil-bounds
Claus Gittinger <cg@exept.de>
parents:
941
diff
changeset
|
521 |
minVal notNil ifTrue:[ |
54949af3f3c1
number-in-range may have nil-bounds
Claus Gittinger <cg@exept.de>
parents:
941
diff
changeset
|
522 |
value := value max:minVal. |
54949af3f3c1
number-in-range may have nil-bounds
Claus Gittinger <cg@exept.de>
parents:
941
diff
changeset
|
523 |
]. |
54949af3f3c1
number-in-range may have nil-bounds
Claus Gittinger <cg@exept.de>
parents:
941
diff
changeset
|
524 |
maxVal notNil ifTrue:[ |
944 | 525 |
value := value min:maxVal. |
942
54949af3f3c1
number-in-range may have nil-bounds
Claus Gittinger <cg@exept.de>
parents:
941
diff
changeset
|
526 |
]. |
941
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
527 |
model value:value] |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
528 |
|
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
529 |
updateBlock: [:m :a :p | true] |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
530 |
|
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
531 |
"Modified: 21.2.1997 / 18:59:44 / cg" |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
532 |
! |
ba196649eaec
added converter for number-in-range
Claus Gittinger <cg@exept.de>
parents:
747
diff
changeset
|
533 |
|
726 | 534 |
smalltalkObject |
535 |
"setup the converter to convert from a string to any smalltalk object |
|
536 |
and vice versa. The string used is the objects storeString. |
|
537 |
Invalid strings (i.e. empty) are converted to nil. |
|
538 |
This is a very special converter (for the GUI builder) |
|
539 |
- probably not belonging to here" |
|
540 |
||
541 |
self |
|
542 |
getBlock:[:model | |
|
543 |
model value storeString , ' "' , model value class name , '" ' |
|
544 |
] |
|
545 |
||
546 |
putBlock: |
|
547 |
[:model :string | |
|
548 |
||
549 |
|value| |
|
550 |
||
551 |
value := Object readFrom:string onError:nil. |
|
552 |
model value:value |
|
553 |
] |
|
554 |
||
555 |
updateBlock: [:m :a :p | true] |
|
556 |
||
557 |
"Modified: / 26.10.1997 / 13:50:32 / cg" |
|
558 |
"Created: / 29.10.1997 / 15:50:16 / cg" |
|
559 |
! |
|
560 |
||
446 | 561 |
symbolOrNil |
562 |
"setup the converter to convert from a string to a symbol |
|
722
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
563 |
and vice versa. Invalid symbols (i.e. empty) are converted to nil; |
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
564 |
nil values are converted to an empty string." |
446 | 565 |
|
566 |
self |
|
567 |
getBlock:[:model | |
|
568 |
|symbolValue| |
|
569 |
||
726 | 570 |
(symbolValue := model value) isSymbol ifFalse:[ |
446 | 571 |
String new |
726 | 572 |
] ifTrue:[ |
573 |
symbolValue storeString |
|
446 | 574 |
]] |
575 |
||
576 |
putBlock: |
|
577 |
[:model :string | |
|
578 |
||
579 |
|value s| |
|
580 |
||
581 |
string isEmpty ifTrue:[ |
|
582 |
value := nil |
|
583 |
] ifFalse:[ |
|
584 |
s := string withoutSeparators. |
|
585 |
(s startsWith:'#') ifTrue:[ |
|
726 | 586 |
s := s copyFrom:2. |
587 |
(s startsWith:$') ifTrue:[ |
|
588 |
s := s copyFrom:2 to:(s size - 1) |
|
589 |
] |
|
446 | 590 |
]. |
591 |
value := s asSymbol |
|
592 |
]. |
|
593 |
model value:value] |
|
594 |
||
595 |
updateBlock: [:m :a :p | true] |
|
596 |
||
722
ea6d08251333
added #arrayLiteralOrSymbolOrNil
Claus Gittinger <cg@exept.de>
parents:
508
diff
changeset
|
597 |
"Created: / 21.2.1997 / 18:58:38 / cg" |
726 | 598 |
"Modified: / 29.10.1997 / 15:49:25 / cg" |
487 | 599 |
! |
600 |
||
601 |
timeOrNil |
|
602 |
"setup the converter to convert from a string to a time |
|
603 |
and vice versa." |
|
604 |
||
605 |
self |
|
606 |
getBlock:[:model | |
|
607 |
|time| |
|
608 |
||
609 |
(time := model value) isNil ifTrue:[ |
|
610 |
'' |
|
611 |
] ifFalse:[ |
|
612 |
time printString |
|
613 |
]] |
|
614 |
||
615 |
putBlock: |
|
616 |
[:model :string | |
|
617 |
||
618 |
|value| |
|
619 |
||
620 |
string isEmpty ifTrue:[ |
|
621 |
value := nil |
|
622 |
] ifFalse:[ |
|
623 |
value := Time readFrom:string onError:nil |
|
624 |
]. |
|
625 |
model value:value] |
|
626 |
||
627 |
updateBlock: [:m :a :p | true] |
|
628 |
||
629 |
"Created: 4.3.1997 / 11:52:47 / cg" |
|
630 |
"Modified: 4.3.1997 / 12:05:48 / cg" |
|
631 |
! |
|
632 |
||
633 |
timeToText |
|
634 |
"setup the converter to convert from a string to a time |
|
635 |
and vice versa." |
|
636 |
||
637 |
self |
|
638 |
getBlock:[:model | |
|
639 |
|time| |
|
640 |
||
641 |
(time := model value) isNil ifTrue:[ |
|
642 |
Time now printString |
|
643 |
] ifFalse:[ |
|
644 |
time printString |
|
645 |
]] |
|
646 |
||
647 |
putBlock: |
|
648 |
[:model :string | |
|
649 |
||
650 |
|value| |
|
651 |
||
652 |
string isEmpty ifTrue:[ |
|
653 |
value := Time now |
|
654 |
] ifFalse:[ |
|
655 |
value := Time readFrom:string onError:Time now |
|
656 |
]. |
|
657 |
model value:value] |
|
658 |
||
659 |
updateBlock: [:m :a :p | true] |
|
660 |
||
661 |
"Modified: 21.2.1997 / 18:59:06 / cg" |
|
662 |
"Created: 4.3.1997 / 11:52:47 / cg" |
|
442 | 663 |
! ! |
664 |
||
665 |
!TypeConverter class methodsFor:'documentation'! |
|
666 |
||
667 |
version |
|
944 | 668 |
^ '$Header: /cvs/stx/stx/libview2/TypeConverter.st,v 1.13 1998-05-22 13:03:58 cg Exp $' |
442 | 669 |
! ! |