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In nc-textscreen each line of text is capped at a certain length to
avoid running off the side of the viewable screen. However it appears
the ncurses function mvwaddnstr() counts by byte instead of actual
character, causing strings which contain multibyte characters to be cut
short.
To avoid this check the displayed length of each string against the
screen width, and if under instruct mvwaddnstr() to print the whole
string.
Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
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When a text_screen is given a long line, it'll wrap to the next,
overstepping the left margin.
We already have folded text for flowed text screens, so just trim long
lines at the correct column.
This exposes an off-by-one with the automatic wrapping in
text_screen_set_text(), where we may overrun the last char, so fix that
too.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
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Several screens in petitboot-nc require an update if a config or sysinfo
update is received. However if those screens exist but are not the
current screen they will incorrectly try to draw to the screen.
Where the currently active screen is a textscreen (eg. a help screen)
the update is delayed until after the screen is exited.
In the particular case of nc-config where the current screen can be an
nc-subset screen, the nc-subset screen is exited immediately so the
update can be performed, since the nc-subset screen depends on the
information in the previous screen.
Signed-off-by: Samuel Mendoza-Jonas <sam.mj@au1.ibm.com>
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Because it's initialised statically, help text won't be directly
gettext()-ed. Instead, we need to perform the gettext translation at
runtime, and pass untranslated strings into the help_screen code.
Instead of trusting callers to pass the untranslated strings though, we
encapsulate the help text data into struct help_text, so we know we have
an unstranslated string.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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This change is a small cleanup of the key bindings; we ensure that the
general key bindings are available (and documented) on all screens.
In order to keep things consistent, this change adds an initial UI
guidelines text file, which documents the general key bindings.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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When we have a large chunk of text, we'll want to add it all in one go.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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We want to implement help screens, which are very similar to the sysinfo
screen - show a set of lines, and allow scrolling.
This change splits the text-screen rendering code into a new nc-textinfo
module.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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