FontDataTable Actionscript

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RCSfile: FontDataTable.as,v Revision: 1.2 Date: 2003/01/29 18:10:26

Copyright 2003 Orgdot AS. All Rights Reserved. http://dev.swfit.com
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Table for faking font data in Flash 4/5. The rules are: a) the point size is fixed - use ratios in other tables b) split all chars into six different widhts: - small, small_slim, small_wide - caps, caps_slim, caps_wide c) set the corresponding strings to these 6 widths (will vary for serifs and sansserifs), and include extra chars were you see fit d) include spacing after all other vals are set - so we can reuse the same set of data for different spacings ... The font data here approximates Arial, the most common font in most projects. There is little work involved in modifying the strings below to suit other fonts. Note that these are not exact measurements - instead they give an approximation based on YOUR idea of letter spacing for a particular font. See LetterDance.swf for a (rather ugly) implemetation.
author      Olaf Havnes
version     Revision: 1.2 Date: 2003/01/29 18:10:26
since       SWFIT1.0

Loop up a table for widths for a selected font.

fontsize = 10;
spacing = 2.0;

regular small letters: abc etc.

small = 5.0;

super slim small letters

small_super_slim = 1.3;
small_super_slim_letters = "il'!.,:;|";

slim small letters (space is included here)

small_slim = 3.0;
small_slim_letters = "fjtr ";

wide small letters

small_wide = 7.5;
small_wide_letters = "mw";

regular capital letters: ABC etc

caps = 6.0;

super slim capital letters

caps_super_slim = 3.0;
caps_super_slim_letters = "I";

slim capital letters

caps_slim = 4.0;
caps_slim_letters = "J";

wide capital letters

caps_wide = 8.5;
caps_wide_letters = "W";

generate the table:

1) set all 256 chars to the witdh of the small letters

i = 0;
while (i < 256)
{
set ("c_" add i, small);
i++;
}

2) set the chars A -> Z to caps

i = ord ('A');
while (i <= ord ('Z'))
{
set ("c_" add i, caps);
i++;
}

3) set the chars À -> Ý to caps

i = 192;
while (i <= 221)
{
set ("c_" add i, caps);
i++;
}

handle special cases

4) set the super slim small letters

i = 0;
while (i < length (small_super_slim_letters))
{
   ord_letter = ord (substring (small_super_slim_letters, i + 1, 1));
   set ("c_" add ord_letter, small_super_slim);
   i++;
}

5) set the slim small letters

i = 0;
while (i < length (small_slim_letters))
{
   ord_letter = ord (substring (small_slim_letters, i + 1, 1));
   set ("c_" add ord_letter, small_slim);
   i++;
}

6) set the wide small letters

i = 0;
while (i < length (small_wide_letters))
{
   ord_letter = ord (substring (small_wide_letters, i + 1, 1));
   set ("c_" add ord_letter, small_wide);
   i++;
}

7) set the super slim capital letters

i = 0;
while (i < length (caps_super_slim_letters))
{
   ord_letter = ord (substring (caps_super_slim_letters, i + 1, 1));
   set ("c_" add ord_letter, caps_super_slim);
   i++;
}

8) set the slim capital letters

i = 0;
while (i < length (caps_slim_letters))
{
   ord_letter = ord (substring (caps_slim_letters, i + 1, 1));
   set ("c_" add ord_letter, caps_slim);
   i++;
}

9) set the wide capital letters

i = 0;
while (i < length (caps_wide_letters))
{
   ord_letter = ord (substring (caps_wide_letters, i + 1, 1));
   set ("c_" add ord_letter, caps_wide);
   i++;
}

add the spacing for all letters and store in _level0.

i = 0;
while (i < 256)
{
set ("/:basefont_" add i, eval ("c_" add i) + spacing);
i++;
}

store the basefont_size in _level0:

set ("/:basefont_size", fontsize);

finally - set line break, form feed and tab to zero (they should not exist here anyway)

set ("/:basefont_" add ord ("\n"), 0);
set ("/:basefont_" add ord ("\r"), 0);
set ("/:basefont_" add ord ("\t"), 0);