https://bugs.kde.org/show_bug.cgi?id=524955
Bug ID: 524955
Summary: Built-in amount calculator misparses decimal comma
when LC_NUMERIC differs from LC_MONETARY
Classification: Applications
Product: kmymoney
Version First 5.2.2
Reported In:
Platform: Mageia RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
DESCRIPTION
The built-in calculator opened from an amount field misinterprets monetary
values when LC_NUMERIC and LC_MONETARY use different decimal separators.
In my environment, monetary amounts use a comma as the decimal separator, while
the numeric locale uses a period.
An initial amount such as 12,50 is interpreted by the calculator as 1250.
Arithmetic operations
using that initial value therefore produce incorrect results.
STEPS TO REPRODUCE
1. Start KMyMoney with the following locale configuration:
LANG=el_GR.UTF-8
LC_NUMERIC=C
LC_MONETARY=fr_FR.UTF-8
2. Create or edit a scheduled transaction.
3. Enter 12,50 in the amount field.
4. Open the built-in calculator from that field.
5. Multiply the amount by 2 and calculate the result.
OBSERVED RESULT
The initial amount is interpreted as 1250 and the multiplication produces 2500.
The same problem affects addition, subtraction, division and other calculator
operations.
EXPECTED RESULT
The calculator should interpret 12,50 as 12.50 and multiplying it by 2 should
produce 25,00.
SOFTWARE/OS VERSIONS
Operating System: Mageia 10
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.0
KMyMoney Version: 5.2.2
ADDITIONAL INFORMATION
Bug 522826 fixed the same locale mismatch in AmountValidator, but
KMyMoneyCalculator is a separate code path and still uses QLocale directly.
I tested the attached patch with success
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