Description: I have been trying to produce an ï (i with diaeresis) with a dot below. When I do, the resulting character has three dots above and one below. More rarely, the third dot above does not appear, but the dot below is off-center. Steps to Reproduce: 1. try to add a "combine dot below" character to an ï 2. 3. Actual Results: Mostly, an i with three dots above and one below appears. At times, no third dot appears on top of the i, but the dot below is offset to the left. Expected Results: a neat ï with a dot below. Reproducible: Always User Profile Reset: Yes Additional Info: Version: 7.1.2.2 (x64) / LibreOffice Community Build ID: 8a45595d069ef5570103caea1b71cc9d82b2aae4 CPU threads: 2; OS: Windows 10.0 Build 19042; UI render: Skia/Raster; VCL: win Locale: ru-RU (ru_RU); UI: en-GB Calc: threaded
(In reply to gugzuc from comment #0) > Description: > I have been trying to produce an ï (i with diaeresis) with a dot below. Please add some informations how you did it. Thank you. => NEEDINFO If you't not sure, if your procedure is the correct one, you should try to get help at ask.libreoffice.org
(In reply to Dieter from comment #1) > (In reply to gugzuc from comment #0) > > Description: > > I have been trying to produce an ï (i with diaeresis) with a dot below. > > Please add some informations how you did it. Thank you. > => NEEDINFO > > If you't not sure, if your procedure is the correct one, you should try to > get help at ask.libreoffice.org Thank you for your answer. I did it by combining the characters U+00EF and U+0323. https://unicode-table.com/en/00EF/ https://unicode-table.com/en/0323/ I did ask on ask.libreoffice.org, and they told me it was likely to be a bug. https://ask.libreoffice.org/en/question/307172/combining-i-with-dot-below/
It seems to depend on the font you use Some results: Calibri: O. K. Arial, Liberation Sans and Segoe UI: three dots above and one dot below Bahnschrift: several dots (looks like a line) above and one dot below Liberation Serif: two dots above (but overlapping) and one dot below
Created attachment 172066 [details] clip of isssue with common fonts Even Graphite seems to mishandle. Attaching a test doc.
Does not seems to be a font metric issue--something is off in handling the combining glyphs. Affecting Graphite fonts as well, though Gentium Book gets it correct. The pair: U+00EFU+0323 or triplets with an "i" U+0069U+0308U+0323 or U+0069U+0323U+0308
Created attachment 172067 [details] test doc with some common fonts mishandling the glyph combinations
On Windows, use of Skia rendering Vulkan or raster, or default GDI makes no difference Version: 7.2.0.0.alpha1+ (x64) / LibreOffice Community Build ID: cb63fad5a1967d20d067cd4ee2c8ddc7ba8ff1ea CPU threads: 8; OS: Windows 10.0 Build 19042; UI render: default; VCL: win Locale: en-US (en_US); UI: en-US Calc: threaded
(In reply to Dieter from comment #3) > It seems to depend on the font you use > > Some results: > Calibri: O. K. > Arial, Liberation Sans and Segoe UI: three dots above and one dot below > Bahnschrift: several dots (looks like a line) above and one dot below > Liberation Serif: two dots above (but overlapping) and one dot below Thanks. From what I can see, it's not OK in Calibri either: you do get two dots above and one below, but the dot below is offset to the left. Also, just for the record, I came across this whilst using the Brill typeface.
(In reply to gugzuc from comment #8) > (In reply to Dieter from comment #3) > > It seems to depend on the font you use > > > > Some results: > > Calibri: O. K. > > Arial, Liberation Sans and Segoe UI: three dots above and one dot below > > Bahnschrift: several dots (looks like a line) above and one dot below > > Liberation Serif: two dots above (but overlapping) and one dot below > > Thanks. From what I can see, it's not OK in Calibri either: you do get two > dots above and one below, but the dot below is offset to the left. > > Also, just for the record, I came across this whilst using the Brill > typeface. Same with Gentium Book: the lower dot is offset to the left.
Created attachment 172070 [details] clip with common fonts, but including U+0131 undotted i redid the test doc and clip with U+0131 undotted i--combines correctly for all fonts. The U+00EF is what is being mishandled.
Created attachment 172071 [details] test doc with some common fonts mishandling the glyph combinations Same test doc but added triplet using the U+0131 glyph as suggested in the Ask thread. Handling the U+0131 is consistent all fonts, though some metrics issues do appear. Handling the U+00EF seems to have the issues.
Created attachment 172072 [details] same set of combining glyphs with Calibri Yup, Calibri seems to get it correct all forms.
It is up to the fonts to handle such combining marks, we have no say on this.