I could very well be wrong but I believe that the problem you are encountering
is caused by the fact that you are assigning a different value to a variable
before saving the workbook away to file.
By this, I mean that you are declaring an HSSFFont object, initialising it,
applying that font object to a cell and then re-initialising the same font
object. I think that it is the re-initialisation of that font object that is
causing you problems.
The answer is, I think, to do exactly as you suggest in your e-mail, to
declare HSSFFont objects for each combination of font you require.
[EMAIL PROTECTED] wrote: I am running into some annoyances with the way
fonts are handled. This may
be because of the way Excel works, or because of the way POI is designed,
or because I am doing the wrong thing.
I am writing a report to track employee leave. The spec is simple:
- unapproved leave should appear in italics. Approved leave is in normal
font.
- leave without pay should appear in green. Other leave is in black.
So for example unapproved leave without pay would be both in italics and
green.
In my first attempt, I created a new font for every cell, and set the
values accordingly. However, Excel seems to have a limit on the number of
fonts in a spreadsheet. I get this message when I open the spreadsheet
"Some formatting may have changed in this file because the number of fonts
was exceeded".
To use only the number of fonts I need, I've had to create a seperate font
for every possible combination of leave types and status.
i.e.
HSSFFont approvedNormalLeave;
HSSFFont unapprovedNormalLeave;
HSSFFont approvedLeaveWithoutPay;
HSSFFont unapprovedLeaveWithoutPay;
This seems to work OK. It's very nasty though, with a nice big
if-then-else statement to work out which of the four fonts I need.
It also won't scale. If they later decide that, for example, all leave on
mondays or fridays needs to be in bold, I will then have to double the
number of fonts again!
i.e
HSSFFont approvedNormalLeave;
HSSFFont unapprovedNormalLeave;
HSSFFont approvedLeaveWithoutPay;
HSSFFont unapprovedLeaveWithoutPay;
HSSFFont mondayApprovedNormalLeave;
HSSFFont mondayUnapprovedNormalLeave;
HSSFFont mondayApprovedLeaveWithoutPay;
HSSFFont mondayUnapprovedLeaveWithoutPay;
So my question is, is there a way to create and use fonts "on the fly" on
a per cell basis? Or am I forced to pre-create a global list of all the
possible fonts I might need?
Thanks for any replies.
Andreas.
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