General table information'hsty' tableGeneral table informationThe 'hsty' table provides information about how to synthesize styles such
as boldfacing and italics on the Newton OS. It is used to mimic the way in which PostScript
will modify fonts when the requested style is not directly available.
The table simply consists of ten fields, most of which are equivalent
to fields in a font with a 'FOND' resource on the Mac OS:
| Type | Name | Description |
|---|---|---|
| Fixed | version | Version number of the table (0x00010000 for the initial version). |
| SInt16 | extraPlain | Extra space required when the font is not styled. Should be 0. |
| SInt16 | extraBold | Extra space required when the font is boldfaced. |
| SInt16 | extraItalic | Extra space required when the font is italicized. |
| SInt16 | extraUnderline | Extra space required when the font is underlined. |
| SInt16 | extraOutline | Extra space required when the font is outlined. |
| SInt16 | extraShadow | Extra space required when the font is shadowed. |
| SInt16 | extraCondensed | Extra space required when the font is condensed. |
| SInt16 | extraExtended | Extra space required when the font is extended. |
| SInt16 | extraUnused | Not used; set to 0. |
The simplest way to generate this structure is to copy the values
directly from the 'FOND', except that they must be scaled along the way into the same
units as used by the horizontal metrics table.
Mac OS-specific informationThis table is not used on the Mac OS.
Newton-specific informationThis font is optional on the Newton OS. It is only required by Newton "width" fonts, which provide high-accuracy printing when using a font installed on a PostScript printer.
DependenciesIf a font has both an 'hsty' table in its TrueType data and a 'FOND' resource, then the values in the 'hsty' should be equal to the corresponding values in the 'FOND's style properties data scaled by the same units used in the horizontal metrics table. See Inside Macintosh: Text, p. 4-93 for information on a 'FOND' resource's style properties fields.
ToolsNo tools are currently configured to edit the 'hsty' table. Hexadecimal edits are possible using TrueEdit.