By applying italics before outline, not after, and slanting italics
characters from the bottom up instead of top down, I now get pixel
perfect rendering for my experimental About dialogs for Loom and Indiana
Jones and the Last Crusade.
Judging by the experiments I made in a Mac emulator, condensed and
extended slant simply decreases and increases the glyph width by one.
You'd think it would depend on the font size, but apparently not. It is
possible to use both condensed and extended slant at the same time, and
it's just as useless as it sounds.
We have to take into consideration that text can use any combination of
slants. Otherwise, glyphs may spill into memory used for other glyphs.
This was probably only an issue when the glyph storage crossed the
boundary from one byte length into another.
QuickDraw appears to simply draw the character once normally and once
shifted one pixel to the right. This was perhaps most noticeable on
small characters with lots of edges. (I noticed it first on "W" in
Geneva 9.)
- The refactoring code for MacFont that magnifies the font on a surface and then uses a grayscalemap to refactor the scaling, is pushed back into a resuable method in the base font class.
- surface magnigy funtion transfer and scaleSingleGlyph method add to the font class.
MacFontManager didn't have a mechanism to report which fonts it loaded
from an external resource. It also requires that any fonts that aren't
built-in be explicitly registered by name by the client before they can
be used. This combination meant that a client couldn't load fonts from
an external file and use them by their properties (id / size / style).
SCI contains Mac fonts in its executable along with a table that maps
each SCI font id to a Mac font id and size. The font name isn't a part
of this since the Classic Mac Toolbox API took id / size / style as
input when drawing text.
Now MacFontManager exposes the font families it has loaded along with
their names. This allows a client to see which fonts were loaded,
register them by name, and proceed to use them with the existing API.
Mostly done using the following Ruby script:
(Dir.glob('**/*.cpp') + Dir.glob('**/*.h')).each do |file|
s = File.read(file, encoding: 'iso8859-1')
t = s.gsub(/(([\w_.\[\]]+)\s*=\s*new\s+\S+?\[[^\]]+?\](?!\())([^\{\}]*?)\n\s+memset\(\s*\2\s*,\s*0\s*,[^;]*;/m, '\1()\3')
if t != s
File.open(file, 'w') { |io| io.write(t) }
end
end
This was probably causing instabilities in the MacVenture engine. The
engine is pretty broken at the moment, and the command window is so
small that text doesn't fit in it at all. Hopefully this will make the
remaining errors easier to debug... some day.
Torbjörn Andersson
elasota
NischayDiwan
sluicebox
Roland van Laar
Donovan Watteau
Eugene Sandulenko
Orgad Shaneh
Alexandre Detiste
ysj1173886760