diff options
Diffstat (limited to 'libX11/man/XTextExtents.man')
-rw-r--r-- | libX11/man/XTextExtents.man | 580 |
1 files changed, 290 insertions, 290 deletions
diff --git a/libX11/man/XTextExtents.man b/libX11/man/XTextExtents.man index c0c524fe1..d366d5a28 100644 --- a/libX11/man/XTextExtents.man +++ b/libX11/man/XTextExtents.man @@ -1,290 +1,290 @@ -.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1994, 1996 X Consortium -.\" -.\" Permission is hereby granted, free of charge, to any person obtaining -.\" a copy of this software and associated documentation files (the -.\" "Software"), to deal in the Software without restriction, including -.\" without limitation the rights to use, copy, modify, merge, publish, -.\" distribute, sublicense, and/or sell copies of the Software, and to -.\" permit persons to whom the Software is furnished to do so, subject to -.\" the following conditions: -.\" -.\" The above copyright notice and this permission notice shall be included -.\" in all copies or substantial portions of the Software. -.\" -.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. -.\" IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR -.\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, -.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR -.\" OTHER DEALINGS IN THE SOFTWARE. -.\" -.\" Except as contained in this notice, the name of the X Consortium shall -.\" not be used in advertising or otherwise to promote the sale, use or -.\" other dealings in this Software without prior written authorization -.\" from the X Consortium. -.\" -.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991 by -.\" Digital Equipment Corporation -.\" -.\" Portions Copyright \(co 1990, 1991 by -.\" Tektronix, Inc. -.\" -.\" Permission to use, copy, modify and distribute this documentation for -.\" any purpose and without fee is hereby granted, provided that the above -.\" copyright notice appears in all copies and that both that copyright notice -.\" and this permission notice appear in all copies, and that the names of -.\" Digital and Tektronix not be used in in advertising or publicity pertaining -.\" to this documentation without specific, written prior permission. -.\" Digital and Tektronix makes no representations about the suitability -.\" of this documentation for any purpose. -.\" It is provided ``as is'' without express or implied warranty. -.\" -.\" -.ds xT X Toolkit Intrinsics \- C Language Interface -.ds xW Athena X Widgets \- C Language X Toolkit Interface -.ds xL Xlib \- C Language X Interface -.ds xC Inter-Client Communication Conventions Manual -.na -.de Ds -.nf -.\\$1D \\$2 \\$1 -.ft 1 -.\".ps \\n(PS -.\".if \\n(VS>=40 .vs \\n(VSu -.\".if \\n(VS<=39 .vs \\n(VSp -.. -.de De -.ce 0 -.if \\n(BD .DF -.nr BD 0 -.in \\n(OIu -.if \\n(TM .ls 2 -.sp \\n(DDu -.fi -.. -.de FD -.LP -.KS -.TA .5i 3i -.ta .5i 3i -.nf -.. -.de FN -.fi -.KE -.LP -.. -.de IN \" send an index entry to the stderr -.. -.de C{ -.KS -.nf -.D -.\" -.\" choose appropriate monospace font -.\" the imagen conditional, 480, -.\" may be changed to L if LB is too -.\" heavy for your eyes... -.\" -.ie "\\*(.T"480" .ft L -.el .ie "\\*(.T"300" .ft L -.el .ie "\\*(.T"202" .ft PO -.el .ie "\\*(.T"aps" .ft CW -.el .ft R -.ps \\n(PS -.ie \\n(VS>40 .vs \\n(VSu -.el .vs \\n(VSp -.. -.de C} -.DE -.R -.. -.de Pn -.ie t \\$1\fB\^\\$2\^\fR\\$3 -.el \\$1\fI\^\\$2\^\fP\\$3 -.. -.de ZN -.ie t \fB\^\\$1\^\fR\\$2 -.el \fI\^\\$1\^\fP\\$2 -.. -.de hN -.ie t <\fB\\$1\fR>\\$2 -.el <\fI\\$1\fP>\\$2 -.. -.de NT -.ne 7 -.ds NO Note -.if \\n(.$>$1 .if !'\\$2'C' .ds NO \\$2 -.if \\n(.$ .if !'\\$1'C' .ds NO \\$1 -.ie n .sp -.el .sp 10p -.TB -.ce -\\*(NO -.ie n .sp -.el .sp 5p -.if '\\$1'C' .ce 99 -.if '\\$2'C' .ce 99 -.in +5n -.ll -5n -.R -.. -. \" Note End -- doug kraft 3/85 -.de NE -.ce 0 -.in -5n -.ll +5n -.ie n .sp -.el .sp 10p -.. -.ny0 -.TH XTextExtents __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS" -.SH NAME -XTextExtents, XTextExtents16, XQueryTextExtents, XQueryTextExtents16 \- compute or query text extents -.SH SYNTAX -.HP -int XTextExtents\^(\^XFontStruct *\fIfont_struct\fP\^, char *\fIstring\fP\^, -int \fInchars\fP\^, int *\fIdirection_return\fP\^, int -*\fIfont_ascent_return\fP, int *\fIfont_descent_return\fP\^, XCharStruct -*\fIoverall_return\fP\^); -.HP -int XTextExtents16\^(\^XFontStruct *\fIfont_struct\fP\^, XChar2b -*\fIstring\fP\^, int \fInchars\fP\^, int *\fIdirection_return\fP\^, int -*\fIfont_ascent_return\fP, int *\fIfont_descent_return\fP\^, XCharStruct -*\fIoverall_return\fP\^); -.HP -int XQueryTextExtents\^(\^Display *\fIdisplay\fP\^, XID \fIfont_ID\fP\^, char -*\fIstring\fP\^, int \fInchars\fP\^, int *\fIdirection_return\fP\^, int -*\fIfont_ascent_return\fP, int *\fIfont_descent_return\fP\^, XCharStruct -*\fIoverall_return\fP\^); -.HP -int XQueryTextExtents16\^(\^Display *\fIdisplay\fP\^, XID \fIfont_ID\fP\^, -XChar2b *\fIstring\fP\^, int \fInchars\fP\^, int *\fIdirection_return\fP\^, -int *\fIfont_ascent_return\fP, int *\fIfont_descent_return\fP\^, XCharStruct -*\fIoverall_return\fP\^); -.SH ARGUMENTS -.IP \fIdirection_return\fP 1i -Returns the value of the direction hint -.Pn ( FontLeftToRight -or -.ZN FontRightToLeft ). -.IP \fIdisplay\fP 1i -Specifies the connection to the X server. -.IP \fIfont_ID\fP 1i -Specifies either the font ID or the -.ZN GContext -ID that contains the font. -.IP \fIfont_ascent_return\fP 1i -Returns the font ascent. -.IP \fIfont_descent_return\fP 1i -Returns the font descent. -.IP \fIfont_struct\fP 1i -Specifies the -.ZN XFontStruct -structure. -.IP \fInchars\fP 1i -Specifies the number of characters in the character string. -.IP \fIstring\fP 1i -Specifies the character string. -.IP \fIoverall_return\fP 1i -Returns the overall size in the specified -.ZN XCharStruct -structure. -.SH DESCRIPTION -The -.ZN XTextExtents -and -.ZN XTextExtents16 -functions -perform the size computation locally and, thereby, -avoid the round-trip overhead of -.ZN XQueryTextExtents -and -.ZN XQueryTextExtents16 . -Both functions return an -.ZN XCharStruct -structure, whose members are set to the values as follows. -.LP -The ascent member is set to the maximum of the ascent metrics of all -characters in the string. -The descent member is set to the maximum of the descent metrics. -The width member is set to the sum of the character-width metrics of all -characters in the string. -For each character in the string, -let W be the sum of the character-width metrics of all characters preceding -it in the string. -Let L be the left-side-bearing metric of the character plus W. -Let R be the right-side-bearing metric of the character plus W. -The lbearing member is set to the minimum L of all characters in the string. -The rbearing member is set to the maximum R. -.LP -For fonts defined with linear indexing rather than 2-byte matrix indexing, -each -.ZN XChar2b -structure is interpreted as a 16-bit number with byte1 as the -most significant byte. -If the font has no defined default character, -undefined characters in the string are taken to have all zero metrics. -.LP -The -.ZN XQueryTextExtents -and -.ZN XQueryTextExtents16 -functions return the bounding box of the specified 8-bit and 16-bit -character string in the specified font or the font contained in the -specified GC. -These functions query the X server and, therefore, suffer the round-trip -overhead that is avoided by -.ZN XTextExtents -and -.ZN XTextExtents16 . -Both functions return a -.ZN XCharStruct -structure, whose members are set to the values as follows. -.LP -The ascent member is set to the maximum of the ascent metrics -of all characters in the string. -The descent member is set to the maximum of the descent metrics. -The width member is set to the sum of the character-width metrics -of all characters in the string. -For each character in the string, -let W be the sum of the character-width metrics of all characters preceding -it in the string. -Let L be the left-side-bearing metric of the character plus W. -Let R be the right-side-bearing metric of the character plus W. -The lbearing member is set to the minimum L of all characters in the string. -The rbearing member is set to the maximum R. -.LP -For fonts defined with linear indexing rather than 2-byte matrix indexing, -each -.ZN XChar2b -structure is interpreted as a 16-bit number with byte1 as the -most significant byte. -If the font has no defined default character, -undefined characters in the string are taken to have all zero metrics. -.LP -Characters with all zero metrics are ignored. -If the font has no defined default_char, -the undefined characters in the string are also ignored. -.LP -.ZN XQueryTextExtents -and -.ZN XQueryTextExtents16 -can generate -.ZN BadFont -and -.ZN BadGC -errors. -.SH DIAGNOSTICS -.TP 1i -.ZN BadFont -A value for a Font or GContext argument does not name a defined Font. -.TP 1i -.ZN BadGC -A value for a GContext argument does not name a defined GContext. -.SH "SEE ALSO" -XLoadFont(__libmansuffix__), -XTextWidth(__libmansuffix__) -.br -\fI\*(xL\fP +.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1994, 1996 X Consortium
+.\"
+.\" Permission is hereby granted, free of charge, to any person obtaining
+.\" a copy of this software and associated documentation files (the
+.\" "Software"), to deal in the Software without restriction, including
+.\" without limitation the rights to use, copy, modify, merge, publish,
+.\" distribute, sublicense, and/or sell copies of the Software, and to
+.\" permit persons to whom the Software is furnished to do so, subject to
+.\" the following conditions:
+.\"
+.\" The above copyright notice and this permission notice shall be included
+.\" in all copies or substantial portions of the Software.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+.\" IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
+.\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+.\" OTHER DEALINGS IN THE SOFTWARE.
+.\"
+.\" Except as contained in this notice, the name of the X Consortium shall
+.\" not be used in advertising or otherwise to promote the sale, use or
+.\" other dealings in this Software without prior written authorization
+.\" from the X Consortium.
+.\"
+.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991 by
+.\" Digital Equipment Corporation
+.\"
+.\" Portions Copyright \(co 1990, 1991 by
+.\" Tektronix, Inc.
+.\"
+.\" Permission to use, copy, modify and distribute this documentation for
+.\" any purpose and without fee is hereby granted, provided that the above
+.\" copyright notice appears in all copies and that both that copyright notice
+.\" and this permission notice appear in all copies, and that the names of
+.\" Digital and Tektronix not be used in in advertising or publicity pertaining
+.\" to this documentation without specific, written prior permission.
+.\" Digital and Tektronix makes no representations about the suitability
+.\" of this documentation for any purpose.
+.\" It is provided ``as is'' without express or implied warranty.
+.\"
+.\"
+.ds xT X Toolkit Intrinsics \- C Language Interface
+.ds xW Athena X Widgets \- C Language X Toolkit Interface
+.ds xL Xlib \- C Language X Interface
+.ds xC Inter-Client Communication Conventions Manual
+.na
+.de Ds
+.nf
+.\\$1D \\$2 \\$1
+.ft 1
+.\".ps \\n(PS
+.\".if \\n(VS>=40 .vs \\n(VSu
+.\".if \\n(VS<=39 .vs \\n(VSp
+..
+.de De
+.ce 0
+.if \\n(BD .DF
+.nr BD 0
+.in \\n(OIu
+.if \\n(TM .ls 2
+.sp \\n(DDu
+.fi
+..
+.de FD
+.LP
+.KS
+.TA .5i 3i
+.ta .5i 3i
+.nf
+..
+.de FN
+.fi
+.KE
+.LP
+..
+.de IN \" send an index entry to the stderr
+..
+.de C{
+.KS
+.nf
+.D
+.\"
+.\" choose appropriate monospace font
+.\" the imagen conditional, 480,
+.\" may be changed to L if LB is too
+.\" heavy for your eyes...
+.\"
+.ie "\\*(.T"480" .ft L
+.el .ie "\\*(.T"300" .ft L
+.el .ie "\\*(.T"202" .ft PO
+.el .ie "\\*(.T"aps" .ft CW
+.el .ft R
+.ps \\n(PS
+.ie \\n(VS>40 .vs \\n(VSu
+.el .vs \\n(VSp
+..
+.de C}
+.DE
+.R
+..
+.de Pn
+.ie t \\$1\fB\^\\$2\^\fR\\$3
+.el \\$1\fI\^\\$2\^\fP\\$3
+..
+.de ZN
+.ie t \fB\^\\$1\^\fR\\$2
+.el \fI\^\\$1\^\fP\\$2
+..
+.de hN
+.ie t <\fB\\$1\fR>\\$2
+.el <\fI\\$1\fP>\\$2
+..
+.de NT
+.ne 7
+.ds NO Note
+.if \\n(.$>$1 .if !'\\$2'C' .ds NO \\$2
+.if \\n(.$ .if !'\\$1'C' .ds NO \\$1
+.ie n .sp
+.el .sp 10p
+.TB
+.ce
+\\*(NO
+.ie n .sp
+.el .sp 5p
+.if '\\$1'C' .ce 99
+.if '\\$2'C' .ce 99
+.in +5n
+.ll -5n
+.R
+..
+. \" Note End -- doug kraft 3/85
+.de NE
+.ce 0
+.in -5n
+.ll +5n
+.ie n .sp
+.el .sp 10p
+..
+.ny0
+.TH XTextExtents __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS"
+.SH NAME
+XTextExtents, XTextExtents16, XQueryTextExtents, XQueryTextExtents16 \- compute or query text extents
+.SH SYNTAX
+.HP
+int XTextExtents\^(\^XFontStruct *\fIfont_struct\fP\^, char *\fIstring\fP\^,
+int \fInchars\fP\^, int *\fIdirection_return\fP\^, int
+*\fIfont_ascent_return\fP, int *\fIfont_descent_return\fP\^, XCharStruct
+*\fIoverall_return\fP\^);
+.HP
+int XTextExtents16\^(\^XFontStruct *\fIfont_struct\fP\^, XChar2b
+*\fIstring\fP\^, int \fInchars\fP\^, int *\fIdirection_return\fP\^, int
+*\fIfont_ascent_return\fP, int *\fIfont_descent_return\fP\^, XCharStruct
+*\fIoverall_return\fP\^);
+.HP
+int XQueryTextExtents\^(\^Display *\fIdisplay\fP\^, XID \fIfont_ID\fP\^, char
+*\fIstring\fP\^, int \fInchars\fP\^, int *\fIdirection_return\fP\^, int
+*\fIfont_ascent_return\fP, int *\fIfont_descent_return\fP\^, XCharStruct
+*\fIoverall_return\fP\^);
+.HP
+int XQueryTextExtents16\^(\^Display *\fIdisplay\fP\^, XID \fIfont_ID\fP\^,
+XChar2b *\fIstring\fP\^, int \fInchars\fP\^, int *\fIdirection_return\fP\^,
+int *\fIfont_ascent_return\fP, int *\fIfont_descent_return\fP\^, XCharStruct
+*\fIoverall_return\fP\^);
+.SH ARGUMENTS
+.IP \fIdirection_return\fP 1i
+Returns the value of the direction hint
+.Pn ( FontLeftToRight
+or
+.ZN FontRightToLeft ).
+.IP \fIdisplay\fP 1i
+Specifies the connection to the X server.
+.IP \fIfont_ID\fP 1i
+Specifies either the font ID or the
+.ZN GContext
+ID that contains the font.
+.IP \fIfont_ascent_return\fP 1i
+Returns the font ascent.
+.IP \fIfont_descent_return\fP 1i
+Returns the font descent.
+.IP \fIfont_struct\fP 1i
+Specifies the
+.ZN XFontStruct
+structure.
+.IP \fInchars\fP 1i
+Specifies the number of characters in the character string.
+.IP \fIstring\fP 1i
+Specifies the character string.
+.IP \fIoverall_return\fP 1i
+Returns the overall size in the specified
+.ZN XCharStruct
+structure.
+.SH DESCRIPTION
+The
+.ZN XTextExtents
+and
+.ZN XTextExtents16
+functions
+perform the size computation locally and, thereby,
+avoid the round-trip overhead of
+.ZN XQueryTextExtents
+and
+.ZN XQueryTextExtents16 .
+Both functions return an
+.ZN XCharStruct
+structure, whose members are set to the values as follows.
+.LP
+The ascent member is set to the maximum of the ascent metrics of all
+characters in the string.
+The descent member is set to the maximum of the descent metrics.
+The width member is set to the sum of the character-width metrics of all
+characters in the string.
+For each character in the string,
+let W be the sum of the character-width metrics of all characters preceding
+it in the string.
+Let L be the left-side-bearing metric of the character plus W.
+Let R be the right-side-bearing metric of the character plus W.
+The lbearing member is set to the minimum L of all characters in the string.
+The rbearing member is set to the maximum R.
+.LP
+For fonts defined with linear indexing rather than 2-byte matrix indexing,
+each
+.ZN XChar2b
+structure is interpreted as a 16-bit number with byte1 as the
+most significant byte.
+If the font has no defined default character,
+undefined characters in the string are taken to have all zero metrics.
+.LP
+The
+.ZN XQueryTextExtents
+and
+.ZN XQueryTextExtents16
+functions return the bounding box of the specified 8-bit and 16-bit
+character string in the specified font or the font contained in the
+specified GC.
+These functions query the X server and, therefore, suffer the round-trip
+overhead that is avoided by
+.ZN XTextExtents
+and
+.ZN XTextExtents16 .
+Both functions return a
+.ZN XCharStruct
+structure, whose members are set to the values as follows.
+.LP
+The ascent member is set to the maximum of the ascent metrics
+of all characters in the string.
+The descent member is set to the maximum of the descent metrics.
+The width member is set to the sum of the character-width metrics
+of all characters in the string.
+For each character in the string,
+let W be the sum of the character-width metrics of all characters preceding
+it in the string.
+Let L be the left-side-bearing metric of the character plus W.
+Let R be the right-side-bearing metric of the character plus W.
+The lbearing member is set to the minimum L of all characters in the string.
+The rbearing member is set to the maximum R.
+.LP
+For fonts defined with linear indexing rather than 2-byte matrix indexing,
+each
+.ZN XChar2b
+structure is interpreted as a 16-bit number with byte1 as the
+most significant byte.
+If the font has no defined default character,
+undefined characters in the string are taken to have all zero metrics.
+.LP
+Characters with all zero metrics are ignored.
+If the font has no defined default_char,
+the undefined characters in the string are also ignored.
+.LP
+.ZN XQueryTextExtents
+and
+.ZN XQueryTextExtents16
+can generate
+.ZN BadFont
+and
+.ZN BadGC
+errors.
+.SH DIAGNOSTICS
+.TP 1i
+.ZN BadFont
+A value for a Font or GContext argument does not name a defined Font.
+.TP 1i
+.ZN BadGC
+A value for a GContext argument does not name a defined GContext.
+.SH "SEE ALSO"
+XLoadFont(__libmansuffix__),
+XTextWidth(__libmansuffix__)
+.br
+\fI\*(xL\fP
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