On 13-09-06 08:22 AM, Parth Kanungo wrote: > Hello, > > I am facing an issue with a line break option - PANGO_WRAP_CHAR. > > You can see the output (image.bmp) > > for my code (main.cpp) > > It is clear that "i" can be rendered on the first line after "Th". > > However, it is coming on the second line. This is wrong. > > Is this a known bug?
There's many things going on here: 1. Unicode line breaking algorithm prohibits breaking before a space. As such we try to fit the space after i in the same line. Normally, after we break line, we zero the width of the final space on the line (see pango-layout.c:zero_line_final_space). We try to account for that when deciding where to break, but it's possible that we are messing things up, 2. When WRAP_CHAR, we still never break before a space, while sometimes that's the right thing to do no matter what Unicode says. In short, that piece of code needs some long overdue love, but I don't know anyone with the time and expertise to look into it right now. behdad > > I further debugged and found that > > 1. can_break_at() gives false for space character. > > 2. break_width contains the width of "Th" only, when it should contain the > width of "The" > > > > But, I am not sure how to fix this. > > Moreover, this problem aggravates if we introduce multiple spaces between 2 > words. > > > > Any pointers in this direction would be helpful. > > > > Thanks and regards, > Parth Kanungo > > > > _______________________________________________ > gtk-i18n-list mailing list > gtk-i18n-list@gnome.org > https://mail.gnome.org/mailman/listinfo/gtk-i18n-list > -- behdad http://behdad.org/ _______________________________________________ gtk-i18n-list mailing list gtk-i18n-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-i18n-list
