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[JanMarvin]

[R/setColWidths] basic support for setColWidths widths = "auto"

sheet <- "mtcars"
wb <- wb_workbook()
wb <- wb_add_worksheet(wb, sheet)
# mtcars <- data.frame(test = 12345678)
writeData(wb, sheet, mtcars, rowNames = T)

cols <- 1:12
setColWidths(wb, sheet, cols = cols, widths = "auto")

wb_open(wb)

I like that my included C# code works (maybe even as expected, haven't done anything in C# in a long long time), but there are still a few bugs on the R side of things.

• a. even if the formula is calculated perfectly, the cells in Excel may still be too small or too wide; I am not sure what causes this. (To get around this, we calculate the value as given, but then round to an even number.)
• b. Character columns are another story. Especially with long characters, formatting, and line breaks, don't expect us to ever support this, because even Excel is bad at determining the optimal size for character cells. Numbers, however, are smaller than text without monospace fonts, so cells are consistently calculated too wide for text columns.
• c. "auto" only works with the base font at the moment. If a particular style specifies a different font, only the base font is used for the calculation.
• d. I calculated the list only for the integer sequence 2 - 25. If higher/lower values or fractions in between are used, we could fall back to a default value.

[JanMarvin]

Codecov Report

Merging #109 (9d25e85) into main (f866ae2) will decrease coverage by 0.05%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main     #109      +/-   ##
==========================================
- Coverage   57.29%   57.24%   -0.06%     
==========================================
  Files          40       40              
  Lines        7304     7311       +7     
==========================================
  Hits         4185     4185              
- Misses       3119     3126       +7     

Impacted Files	Coverage Δ
R/class-workbook-wrappers.R	31.22% <0.00%> (-0.38%)	⬇️

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