This removes all functions related to:
* GUI1 font formatting
* GUI1 font rendering
* Manual text surface size calculations
* The font description interface. While it wasn't exclusive to the TTF rendering system,
it was unused by Pango/Cairo rendering.
A huge chunk of the help browser code was commented out since we don't have font::line_width anymore.
Likewise, a hack was added to the GUI2 text box since we don't have have get_max_height anymore.
font::is_cjk_char was retained (as well as some related helpers) since they might be useful
later.
I'll leave it to someone else to update the CMake/Scons files to remove TTF as a build
dependency.
This replaces the broken implementation I added in fb6c85e70b.
See documentation in data/hardwired/fonts.cfg for explanation as to why it didn't work and
why this does.
Currently "light" is set to Lato Light, which is weight 300. Regular is weight 400.
Since GUI1 widgets seem to rely on the given font size values in font.hpp
for their dimensions, those are unchanged. ThemeWML-provided sizes were adjusted,
and larger sizes assigned to elements that were too small with the new font.
Theme element rects were also adjusted as necessary.
This selects DejaVu Sans Mono instead of whatever sans serif font is the
default for the current locale is. I'm not entirely sure what to do to
handle non-Western European languages since this is intended to be used
for displaying code or debug info anyway.
Because I can't be bothered to figure out how the codepoint fallback
works for GUI1, I'm only adding support for using this with the
Pango/Cairo ttext wrapper, which is used by GUI2. I'm also leaving it up
to fontconfig to find the correct font file for the font when selected.
Hopefully this will suffice for now.
Since the GUI2 titlescreen took over, the path to tips.cfg is not
hard-coded in the engine anymore; in fact, this commit also updates that
path, which is in data/gui/default.cfg.
(initial commit msg: Fixed a screw up in which em dashes were being
used instead of horizontal bars.)
reason: he explicitly asked me not to apply the pofix change, this is
only possible if it is not there since pofix is always run before
committing translation files
