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- #ifndef DISKFONT_DISKFONTTAG_H
- #define DISKFONT_DISKFONTTAG_H
- /*
- ** $VER: diskfonttag.h 10.4 (14.7.92)
- ** Includes Release 40.15
- **
- ** diskfonttag.h -- tag definitions for .otag files
- **
- ** (C) Copyright 1990-1992 Robert R. Burns
- ** All Rights Reserved
- */
- #ifndef EXEC_TYPES_H
- #include "exec/types.h"
- #endif
-
- #ifndef UTILITY_TAGITEM_H
- #include "utility/tagitem.h"
- #endif
-
- /* Level 0 entries never appear in the .otag tag list, but appear in font
- * specifications */
- #define OT_Level0 TAG_USER
- /* Level 1 entries are required to exist in the .otag tag list */
- #define OT_Level1 (TAG_USER | 0x1000)
- /* Level 2 entries are optional typeface metric tags */
- #define OT_Level2 (TAG_USER | 0x2000)
- /* Level 3 entries are required for some OT_Engines */
- #define OT_Level3 (TAG_USER | 0x3000)
- /* Indirect entries are at (tag address + data offset) */
- #define OT_Indirect 0x8000
-
-
- /********************************************************************/
- /* font specification and inquiry tags */
-
- /* ! tags flagged with an exclaimation mark are valid for
- * specification.
- * ? tags flagged with a question mark are valid for inquiry
- *
- * fixed binary numbers are encoded as 16 bits of integer and
- * 16 bits of fraction. Negative values are indicated by twos
- * complement of all 32 bits.
- */
-
- /* ! OT_DeviceDPI specifies the target device dots per inch -- X DPI is
- * in the high word, Y DPI in the low word. */
- #define OT_DeviceDPI (OT_Level0 | 0x01) /* == TA_DeviceDPI */
-
- /* ! OT_DotSize specifies the target device dot size as a percent of
- * it's resolution-implied size -- X percent in high word, Y percent
- * in low word. */
- #define OT_DotSize (OT_Level0 | 0x02)
-
- /* ! OT_PointHeight specifies the requested point height of a typeface,
- * specifically, the height and nominal width of the em-square.
- * The point referred to here is 1/72". It is encoded as a fixed
- * binary number. */
- #define OT_PointHeight (OT_Level0 | 0x08)
-
- /* ! OT_SetFactor specifies the requested set width of a typeface.
- * It distorts the width of the em-square from that specified by
- * OT_PointHeight. To compensate for a device with different
- * horizontal and vertical resolutions, OT_DeviceDPI should be used
- * instead. For a normal aspect ratio, set to 1.0 (encoded as
- * 0x00010000). This is the default value. */
- #define OT_SetFactor (OT_Level0 | 0x09)
-
- /* ! OT_Shear... specifies the Sine and Cosine of the vertical stroke
- * angle, as two fixed point binary fractions. Both must be specified:
- * first the Sine and then the Cosine. Setting the sine component
- * changes the Shear to an undefined value, setting the cosine
- * component completes the Shear change to the new composite value.
- * For no shear, set to 0.0, 1.0 (encoded as 0x00000000, 0x00010000).
- * This is the default value. */
- #define OT_ShearSin (OT_Level0 | 0x0a)
- #define OT_ShearCos (OT_Level0 | 0x0b)
-
- /* ! OT_Rotate... specifies the Sine and Cosine of the baselin rotation
- * angle, as two fixed point binary fractions. Both must be specified:
- * first the Sine and then the Cosine. Setting the sine component
- * changes the Shear to an undefined value, setting the cosine
- * component completes the Shear change to the new composite value.
- * For no shear, set to 0.0, 1.0 (encoded as 0x00000000, 0x00010000).
- * This is the default value. */
- #define OT_RotateSin (OT_Level0 | 0x0c)
- #define OT_RotateCos (OT_Level0 | 0x0d)
-
- /* ! OT_Embolden... specifies values to algorithimically embolden -- or,
- * when negative, lighten -- the glyph. It is encoded as a fixed point
- * binary fraction of the em-square. The X and Y components can be
- * changed indendently. For normal characters, set to 0.0, 0.0
- * (encoded as 0x00000000, 0x00000000). This is the default value. */
- #define OT_EmboldenX (OT_Level0 | 0x0e)
- #define OT_EmboldenY (OT_Level0 | 0x0f)
-
- /* ! OT_PointSize is an old method of specifying the point size,
- * encoded as (points * 16). */
- #define OT_PointSize (OT_Level0 | 0x10)
-
- /* ! OT_GlyphCode specifies the glyph (character) code to use with
- * subsequent operations. For example, this is the code for an
- * OT_Glyph inquiry */
- #define OT_GlyphCode (OT_Level0 | 0x11)
-
- /* ! OT_GlyphCode2 specifies the second glyph code. For example,
- * this is the right glyph of the two glyphs of an OT_KernPair
- * inquiry */
- #define OT_GlyphCode2 (OT_Level0 | 0x12)
-
- /* ! OT_GlyphWidth specifies a specific width for a glyph.
- * It sets a specific escapement (advance) width for subsequent
- * glyphs. It is encoded as a fixed binary fraction of the em-square.
- * To revert to using the font-defined escapement for each glyph, set
- * to 0.0 (encoded as 0x00000000). This is the default value. */
- #define OT_GlyphWidth (OT_Level0 | 0x13)
-
- /* ! OT_OTagPath and
- * ! OT_OTagList specify the selected typeface. Both must be specified:
- * first the Path and then the List. Setting the path name changes
- * changes the typeface to an undefined value, providing the List
- * completes the typeface selection to the new typeface. OTagPath
- * is the null terminated full file path of the .otag file associated
- * with the typeface. OTagList is a memory copy of the processed
- * contents of that .otag file (i.e. with indirections resolved).
- * There are no default values for the typeface. */
- #define OT_OTagPath (OT_Level0 | OT_Indirect | 0x14)
- #define OT_OTagList (OT_Level0 | OT_Indirect | 0x15)
-
- /* ? OT_GlyphMap supplies a read-only struct GlyphMap pointer that
- * describes a bitmap for a glyph with the current attributes. */
- #define OT_GlyphMap (OT_Level0 | OT_Indirect | 0x20)
-
- /* ? OT_WidthList supplies a read-only struct MinList of struct
- * GlyphWidthEntry nodes for glyphs that are defined from GlyphCode
- * to GlyphCode2, inclusive. The widths are represented as fixed
- * binary fractions of the em-square, ignoring any effect of
- * SetFactor or GlyphWidth. A width would need to be converted to
- * a distance along the baseline in device units by the
- * application. */
- #define OT_WidthList (OT_Level0 | OT_Indirect | 0x21)
-
- /* ? OT_...KernPair supplies the kern adjustment to be added to the
- * current position after placement of the GlyphCode glyph and
- * before placement of the GlyphCode2 glyph. Text kern pairs are
- * for rendering body text. Display kern pairs are generally
- * tighter values for display (e.g. headline) purposes. The
- * adjustment is represented as a fixed binary fraction of the
- * em-square, ignoring any effect of SetFactor. This number would
- * need to be converted to a distance along the baseline in device
- * units by the application. */
- #define OT_TextKernPair (OT_Level0 | OT_Indirect | 0x22)
- #define OT_DesignKernPair (OT_Level0 | OT_Indirect | 0x23)
-
- /* ? OT_Underlined is an unsigned word which is used to request
- * algorithimic underlining for the engine when rendering the glyph.
- * Bullet.library currently does not support this tag, though it
- * may be used by other engines in the future. The default for
- * any engine which supports this tag must be OTUL_None. Engines which
- * do not support this tag should return an appropriate OTERR value.
- *
- * As of V39, diskfont.library will request underlining if specified
- * in the TextAttr, or TTextAttr passed to OpenDiskFont(). Diskfont
- * will first request Broken underlining (like the Text() function
- * does when SetSoftStyle() is used), and then Solid underlining if
- * the engine returns an error. If the engine returns an error for
- * both, then diskfont.library attempts to find, or create the best
- * non-underlined font that it can. */
- #define OT_UnderLined (OT_Level0 | 0x24)
-
- #define OTUL_None 0
- #define OTUL_Solid 1
- #define OTUL_Broken 2
- #define OTUL_DoubleSolid 3
- #define OUTL_DoubleBroken 4
-
- /* ? OT_StrikeThrough is a boolean which is used to request
- * algorithimic strike through when rendering the glyph.
- * Bullet.library currently does not support this tag, though it
- * may be used by other engines in the future. The default for
- * any engined which supports this tag must be FALSE. Engines which
- * do not support this tag should return an appropriate OTERR value. */
- #define OT_StrikeThrough (OT_Level0 | 0x25)
-
-
- /********************************************************************/
- /* .otag tags */
-
- /* suffix for files in FONTS: that contain these tags */
- #define OTSUFFIX ".otag"
-
- /* OT_FileIdent both identifies this file and verifies its size.
- * It is required to be the first tag in the file. */
- #define OT_FileIdent (OT_Level1 | 0x01)
-
- /* OT_Engine specifies the font engine this file is designed to use */
- #define OT_Engine (OT_Level1 | OT_Indirect | 0x02)
- #define OTE_Bullet "bullet"
-
- /* OT_Family is the family name of this typeface */
- #define OT_Family (OT_Level1 | OT_Indirect | 0x03)
-
- /* The name of this typeface is implicit in the name of the .otag file */
- /* OT_BName is used to find the bold variant of this typeface */
- #define OT_BName (OT_Level2 | OT_Indirect | 0x05)
- /* OT_IName is used to find the italic variant of this typeface */
- #define OT_IName (OT_Level2 | OT_Indirect | 0x06)
- /* OT_BIName is used to find the bold italic variant of this typeface */
- #define OT_BIName (OT_Level2 | OT_Indirect | 0x07)
-
- /* OT_SymSet is used to select the symbol set that has the OT_YSizeFactor
- * described here. Other symbol sets might have different extremes */
- #define OT_SymbolSet (OT_Level1 | 0x10)
-
- /* OT_YSizeFactor is a ratio to assist in calculating the Point height
- * to BlackHeight relationship -- high word: Point height term, low
- * word: Black height term -- pointSize = ysize*<high>/<low> */
- #define OT_YSizeFactor (OT_Level1 | 0x11)
-
- /* OT_SpaceWidth specifies the width of the space character relative
- * to the character height */
- #define OT_SpaceWidth (OT_Level2 | 0x12)
-
- /* OT_IsFixed is a boolean indicating that all the characters in the
- * typeface are intended to have the same character advance */
- #define OT_IsFixed (OT_Level2 | 0x13)
-
- /* OT_SerifFlag is a boolean indicating if the character has serifs */
- #define OT_SerifFlag (OT_Level1 | 0x14)
-
- /* OT_StemWeight is an unsigned byte indicating the weight of the character */
- #define OT_StemWeight (OT_Level1 | 0x15)
-
- #define OTS_UltraThin 8 /* 0- 15 */
- #define OTS_ExtraThin 24 /* 16- 31 */
- #define OTS_Thin 40 /* 32- 47 */
- #define OTS_ExtraLight 56 /* 48- 63 */
- #define OTS_Light 72 /* 64- 79 */
- #define OTS_DemiLight 88 /* 80- 95 */
- #define OTS_SemiLight 104 /* 96-111 */
- #define OTS_Book 120 /* 112-127 */
- #define OTS_Medium 136 /* 128-143 */
- #define OTS_SemiBold 152 /* 144-159 */
- #define OTS_DemiBold 168 /* 160-175 */
- #define OTS_Bold 184 /* 176-191 */
- #define OTS_ExtraBold 200 /* 192-207 */
- #define OTS_Black 216 /* 208-223 */
- #define OTS_ExtraBlack 232 /* 224-239 */
- #define OTS_UltraBlack 248 /* 240-255 */
-
- /* OT_SlantStyle is an unsigned byte indicating the font posture */
- #define OT_SlantStyle (OT_Level1 | 0x16)
- #define OTS_Upright 0
- #define OTS_Italic 1 /* Oblique, Slanted, etc. */
- #define OTS_LeftItalic 2 /* Reverse Slant */
-
- /* OT_HorizStyle is an unsigned byte indicating the appearance width */
- #define OT_HorizStyle (OT_Level1 | 0x17)
- #define OTH_UltraCompressed 16 /* 0- 31 */
- #define OTH_ExtraCompressed 48 /* 32- 63 */
- #define OTH_Compressed 80 /* 64- 95 */
- #define OTH_Condensed 112 /* 96-127 */
- #define OTH_Normal 144 /* 128-159 */
- #define OTH_SemiExpanded 176 /* 160-191 */
- #define OTH_Expanded 208 /* 192-223 */
- #define OTH_ExtraExpanded 240 /* 224-255 */
-
- /* OT_SpaceFactor specifies the width of the space character relative
- * to the character height */
- #define OT_SpaceFactor (OT_Level2 | 0x18)
-
- /* OT_InhibitAlgoStyle indicates which ta_Style bits, if any, should
- * be ignored even if the font does not already have that quality.
- * For example, if FSF_BOLD is set and the typeface is not bold but
- * the user specifies bold, the application or diskfont library is
- * not to use OT_Embolden to achieve a bold result. */
- #define OT_InhibitAlgoStyle (OT_Level2 | 0x19)
-
- /* OT_AvailSizes is an indirect pointer to sorted UWORDs, 0th is count */
- #define OT_AvailSizes (OT_Level1 | OT_Indirect | 0x20)
- #define OT_MAXAVAILSIZES 20 /* no more than 20 sizes allowed */
-
- /* OT_SpecCount is the count number of parameters specified here */
- #define OT_SpecCount (OT_Level1 | 0x100)
-
- /* Specs can be created as appropriate for the engine by ORing in the
- * parameter number (1 is first, 2 is second, ... up to 15th) */
- #define OT_Spec (OT_Level1 | 0x100)
- /* OT_Spec1 is the (first) parameter to the font engine to select
- * this particular typeface */
- #define OT_Spec1 (OT_Level1 | 0x101)
-
- #endif /* DISKFONT_DISKFONTTAG_H */
-