Handle Control Characters in Input Fields
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Key: PIVOT-343
URL: https://issues.apache.org/jira/browse/PIVOT-343
Project: Pivot
Issue Type: Improvement
Components: wtk
Reporter: Sandro Martini
Priority: Minor
Fix For: 2.0
In TextInput (or at least in TextArea, then possibly in any other component
that accept input form the user) could be useful to have a property to set what
to do with Control Chars, like in dot Net components.
This is important for example with some applications reading data from
instruments (for example BarCode Scanners), where usually at the end of any
code read will be appended a CR LF as a marker, and in this case these chars
have to be accepted in the field but not displayed.
The default behavior should be to filter them out in all components (but not in
multi-line components, like TextArea), but if the filtering is disabled (maybe
with a dedicated style property) we could use another style property to set the
desired formatting (by default nothing, or maybe a given char like space, etc).
So what do you think on a style like "escapeControlCharacters" to control the
display part, with some flag values, like "space", "none" or "null", etc ?
And another style like "filterControlCharacters" by default true (remove any
non printable char, but in a i18n context could not be so simple to know if a
char is displayable, right ? or maybe we could have here a regexp but could be
too heavy ... ideas ?) and if false it keep all chars as given.
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