194 lines
5.1 KiB
Groff
194 lines
5.1 KiB
Groff
.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1994, 1996 X Consortium
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.\"
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.\" Permission is hereby granted, free of charge, to any person obtaining
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.\" a copy of this software and associated documentation files (the
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.\" "Software"), to deal in the Software without restriction, including
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.\" without limitation the rights to use, copy, modify, merge, publish,
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.\" distribute, sublicense, and/or sell copies of the Software, and to
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.\" permit persons to whom the Software is furnished to do so, subject to
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.\" the following conditions:
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.\"
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.\" The above copyright notice and this permission notice shall be included
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.\" in all copies or substantial portions of the Software.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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.\" IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
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.\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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.\" OTHER DEALINGS IN THE SOFTWARE.
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.\"
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.\" Except as contained in this notice, the name of the X Consortium shall
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.\" not be used in advertising or otherwise to promote the sale, use or
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.\" other dealings in this Software without prior written authorization
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.\" from the X Consortium.
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.\"
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.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991 by
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.\" Digital Equipment Corporation
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.\"
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.\" Portions Copyright \(co 1990, 1991 by
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.\" Tektronix, Inc.
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.\"
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.\" Permission to use, copy, modify and distribute this documentation for
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.\" any purpose and without fee is hereby granted, provided that the above
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.\" copyright notice appears in all copies and that both that copyright notice
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.\" and this permission notice appear in all copies, and that the names of
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.\" Digital and Tektronix not be used in in advertising or publicity pertaining
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.\" to this documentation without specific, written prior permission.
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.\" Digital and Tektronix makes no representations about the suitability
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.\" of this documentation for any purpose.
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.\" It is provided ``as is'' without express or implied warranty.
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.\"
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.\"
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.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xW Athena X Widgets \- C Language X Toolkit Interface
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.ds xL Xlib \- C Language X Interface
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.ds xC Inter-Client Communication Conventions Manual
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.na
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.de Ds
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.nf
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.\\$1D \\$2 \\$1
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.ft 1
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.\".ps \\n(PS
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.\".if \\n(VS>=40 .vs \\n(VSu
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.\".if \\n(VS<=39 .vs \\n(VSp
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.de De
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.nr BD 0
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.in \\n(OIu
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.sp \\n(DDu
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.fi
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..
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.de FD
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.LP
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.KS
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.TA .5i 3i
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.ta .5i 3i
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.nf
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..
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.de FN
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.fi
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.KE
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.LP
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..
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.de IN \" send an index entry to the stderr
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..
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.de C{
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.KS
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.nf
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.D
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.\"
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.\" choose appropriate monospace font
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.\" the imagen conditional, 480,
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.\" may be changed to L if LB is too
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.\" heavy for your eyes...
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.\"
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.ie "\\*(.T"480" .ft L
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.el .ie "\\*(.T"300" .ft L
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.el .ie "\\*(.T"202" .ft PO
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.el .ie "\\*(.T"aps" .ft CW
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.el .ft R
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.ie \\n(VS>40 .vs \\n(VSu
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.el .vs \\n(VSp
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..
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.de C}
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.DE
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.R
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..
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.de Pn
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.ie t \\$1\fB\^\\$2\^\fR\\$3
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.el \\$1\fI\^\\$2\^\fP\\$3
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..
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.de ZN
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.el \fI\^\\$1\^\fP\\$2
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.de hN
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.ie t <\fB\\$1\fR>\\$2
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.el <\fI\\$1\fP>\\$2
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..
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.de NT
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.ne 7
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.ds NO Note
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.if \\n(.$>$1 .if !'\\$2'C' .ds NO \\$2
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.if \\n(.$ .if !'\\$1'C' .ds NO \\$1
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.ie n .sp
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.el .sp 10p
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.TB
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.ce
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\\*(NO
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.ie n .sp
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.el .sp 5p
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.if '\\$1'C' .ce 99
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.in +5n
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.ll -5n
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.R
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. \" Note End -- doug kraft 3/85
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.de NE
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..
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.ny0
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.TH XFontSetExtents __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS"
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.SH NAME
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XFontSetExtents \- XFontSetExtents structure
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.SH STRUCTURES
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The
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.ZN XFontSetExtents
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structure contains:
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.LP
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.Ds 0
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.TA .5i 3i
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.ta .5i 3i
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typedef struct {
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XRectangle max_ink_extent; /\&* over all drawable characters */
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XRectangle max_logical_extent; /\&* over all drawable characters */
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} XFontSetExtents;
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.De
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.LP
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The
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.ZN XRectangle
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structures used to return font set metrics are the usual Xlib screen-oriented
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rectangles
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with x, y giving the upper left corner, and width and height always positive.
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.LP
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The max_ink_extent member gives the maximum extent, over all drawable characters, of
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the rectangles that bound the character glyph image drawn in the
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foreground color, relative to a constant origin.
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See
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.ZN XmbTextExtents
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and
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.ZN XwcTextExtents
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for detailed semantics.
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.LP
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The max_logical_extent member gives the maximum extent,
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over all drawable characters, of the rectangles
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that specify minimum spacing to other graphical features,
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relative to a constant origin.
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Other graphical features drawn by the client, for example,
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a border surrounding the text, should not intersect this rectangle.
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The max_logical_extent member should be used to compute minimum
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interline spacing and the minimum area that must be allowed
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in a text field to draw a given number of arbitrary characters.
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.LP
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Due to context-dependent rendering,
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appending a given character to a string may change
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the string's extent by an amount other than that character's
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individual extent.
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.SH "SEE ALSO"
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XCreateFontSet(__libmansuffix__),
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XExtentsOfFontSet(__libmansuffix__),
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XFontsOfFontSet(__libmansuffix__)
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.br
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\fI\*(xL\fP
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