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Chapter 4 - Font Manager / Font Manager Reference

The Font Family ('FOND') Resource

The Font Association Table

The font association table of the font family resource maps a point size and style into
a specific font that is part of the family. This table is represented by the fontAssoc field
of the font family resource. This table, which is shown in Figure 4-24, matches a given
font size and style combination with the resource ID of a'FONT', bitmapped, or
outline resource.

Figure 4-24 The font association table

The font association table consists of an integer count and a variable number of font association entries. The table is represented by the FontAssoc data type, which is shown on page 4-43.

• Number of entries. An integer value that specifies the number of font association records in this table minus 1. This value is represented by the numAssoc field in the FontAssoc data type.

Each font association entry is represented by the AsscEntry data type, which is shown on page 4-43. The Font Manager looks first for outline font resources, then bitmapped font resources, then'FONT' resources. Entries are sorted according to point size, with the smallest sizes coming first in the table. The font size value for outline font resources is 0, so they are always listed first. Plain fonts are sorted before styled fonts. The elements of each entry are:

• Font size. This integer value specifies the size of the font in points. This value is represented by the fontSize field of the AsscEntry data type.
• Font style. This integer value specifies the style code of the entry, as shown in Figure 4-23 on page 4-89. This value is represented by the fontStyle field of the AsscEntry data type.
• Font ID. This integer value specifies the resource ID of the related 'sfnt', 'NFNT', or 'FONT' resource. This value is represented by the fontID field of the AsscEntry data type.

Note

Bits 8 and 9 of the fontStyle field of the font association table entry specify the font depth. They need to contain the same values as bits 2 and 3 of the fontType field of the font resource that this entry describes.