[PyKDE] [PyQt3] QSpinWidget derived widgets

[Hans-Peter Jansen]

Hi Phil et.al.,

attached is an example, what can be done within PyQt, if QSpinWidget is made 
available. I know, your policy is: don't wrap internal Qt classes, but this 
one may deserve an exception for these reasons:
 - the risk, that Trolltech will change these interfaces in Qt3 is next to
   zero
 - the cost for you is minimal, given that you assimilate my qspinwidget.sip
   (well, since QSpinWidget is defined in qrangecontrol.h, it would 
   perfectly fit into sip/qt/qrangecontrol.sip IMHO) 
   The only caveat in this area is, that I may not gotten the versioning
   right.. It's just <%If (Qt_3_0_0 -) .. %End> ATM..
 - It's not possible to fully explore Pythons advantages within e.g. custom
   QSpinBox derived widgets since its unfortunate integer range limitation.

The archive contains an type agnostic rangecontrol.py module, a int based 
SpinBox implementation with slightly advanced interfaces and functionality:
up to 5 values can be given to the constructor:
SpinBox(minValue, maxValue, lineStep, pageStep, value)
The "page" stepping (Page Up/Page Down) is missing and the value must be 
given with setValue() originally.

Additionally, a DecimalSpinBox widget is provided, which makes Decimals 
available without any artificial limitations, where the number of decimals 
given as value parameter typically specifies them, but could also be given
as 'decimals' keyword argument, similar to 'decimalpoint' and 'separator' 
arguments.

For those, who want to play with it, run the build.sh in qspinwidget to 
build the wrapper, and then 'python spinbox.py'. Let us know, if you like 
it, plan to use it, enhance it or what ever you think about it.

Enjoy,
    Pete
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