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STR #3448
| Application: | FLTK Library |
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| Status: | 1 - Closed w/Resolution |
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| Priority: | 2 - Low, e.g. a documentation error or undocumented side-effect |
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| Scope: | 2 - Specific to an operating system |
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| Subsystem: | X11 |
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| Summary: | fl_text_extents() width not correct with Xft+Pango and internal italic/bold fonts |
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| Version: | 1.4-feature |
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| Created By: | chris |
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| Assigned To: | AlbrechtS |
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| Fix Version: | 1.4.0 |
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| Fix Commit: | unknown |
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| Update Notification: | |
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Trouble Report Files:
No files
Trouble Report Comments:
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| #1 | chris
06:04 Jan 06, 2018 |
| When FLTK is enabled for Pango, the bounding width of strings is not correctly calculated for FLTK's internal fonts, when used as BOLD and/or ITALIC variant.
This can be seen with unittests: Just change in unittest_text.cxx the first fl_font(FL_HELVETICA, 30) to fl_font(FL_HELVETICA_ITALIC) and (for better visibilty) add a character '/' to the end of the string.
The proof that only FLTK's internal fonts are affected: When mapping the FL_HELVETICA font to e.g. "IArial" then the result is correct. | |
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| #2 | AlbrechtS
10:49 Dec 13, 2023 |
| @Chris: is this still the case in Git master, and does this also apply if FLTK is using Cairo (either on X11 or on Wayland)?
... or can we close this STR? | |
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| #3 | chris
23:31 Dec 13, 2023 |
| This seems to be fixed now, either by FLTK or newer Pango libraries. Under Ubuntu 20.04 with Xft+Pango setting and above mentioned test case, fl_text_extents() is shown correctly. | |
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| #4 | AlbrechtS
08:42 Dec 14, 2023 |
| @Chris: Thanks for your feedback. I'm closing the STR now. | |
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