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oldlinux-files/Linux-0.98/Yggdrasil-0.98.3/usr/X11/man/man3/XmbDrawText.3x
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.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
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.TH XmbDrawText 3X11 "Release 5" "X Version 11" "XLIB FUNCTIONS"
.SH NAME
XmbDrawText, XwcDrawText \- draw text using multiple font sets
.SH SYNTAX
void XmbDrawText\^(\^\fIdisplay\fP\^, \fId\fP\^, \fIgc\fP\^, \fIx\fP\^, \fIy\fP\^, \fIitems\fP\^, \fInitems\fP\^)
.br
Display *\fIdisplay\fP\;
.br
Drawable \fId\fP\^;
.br
GC \fIgc\fP\^;
.br
int \fIx\fP\^, \fIy\fP\^;
.br
XmbTextItem *\fIitems\fP\^;
.br
int \fInitems\fP\^;
.LP
void XwcDrawText\^(\^\fIdisplay\fP\^, \fId\fP\^, \fIgc\fP\^, \fIx\fP\^, \fIy\fP\^, \fIitems\fP\^, \fInitems\fP\^)
.br
Display *\fIdisplay\fP\^;
.br
Drawable \fId\fP\^;
.br
GC \fIgc\fP\^;
.br
int \fIx\fP\^, \fIy\fP\^;
.br
XwcTextItem *\fIitems\fP\^;
.br
int \fInitems\fP\^;
.SH ARGUMENTS
.\" $Header: d.a,v 1.1 88/02/26 10:04:25 mento Exp $
.IP \fId\fP 1i
Specifies the drawable.
.\" $Header: display.a,v 1.1 88/02/26 10:26:29 mento Exp $
.IP \fIdisplay\fP 1i
Specifies the connection to the X server.
.\" $Header: gc.a,v 1.2 88/05/09 11:20:34 mento Exp $
.IP \fIgc\fP 1i
Specifies the GC.
.\" $Header: items.a,v 1.1 88/02/26 10:28:21 mento Exp $
.IP \fIitems\fP 1i
Specifies an array of text items.
.\" $Header: nitems.a,v 1.1 88/02/26 10:29:33 mento Exp $
.IP \fInitems\fP 1i
Specifies the number of text items in the array.
.ds Xy
.\" $Header: xy_gen.a,v 1.2 88/08/04 11:22:37 mento Exp $
.IP \fIx\fP 1i
.br
.ns
.IP \fIy\fP 1i
Specify the x and y coordinates\*(Xy.
.SH DESCRIPTION
.ZN XmbDrawText
and
.ZN XwcDrawText
allow complex spacing and font set shifts between text strings.
Each text item is processed in turn, with the origin of a text
element advanced in the primary draw direction by the escapement of the
previous text item.
A text item delta specifies an additional escapement of the text item
drawing origin in the primary draw direction.
A font_set member other than
.ZN None
in an item causes the font set to be used for this and subsequent text items
in the text_items list.
Leading text items with font_set member set to
.ZN None
will not be drawn.
.LP
.ZN XmbDrawText
and
.ZN XwcDrawText
do not perform any context-dependent rendering between text segments.
Clients may compute the drawing metrics by passing each text segment to
.ZN XmbTextExtents
and XwcTextExtents
or
.ZN XmbTextPerCharExtents
and
.ZN XwcTextPerCharExtents .
When the
.ZN XFontSet
has missing charsets, each unavailable character is drawn
with the default string returned by
.ZN XCreateFontSet .
The behavior for an invalid codepoint is undefined.
.SH STRUCTURES
The
.ZN XmbTextItem
structure contains:
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typedef struct {
char *chars; /* pointer to string */
int nchars; /* number of characters */
int delta; /* pixel delta between strings */
XFontSet font_set; /* fonts, None means don't change */
} XmbTextItem;
.De
The
.ZN XwcTextItem
structure contains:
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.ta .5i 2.5i
typedef struct {
wchar_t *chars; /* pointer to wide char string */
int nchars; /* number of wide characters */
int delta; /* pixel delta between strings */
XFontSet font_set; /* fonts, None means don't change */
} XwcTextItem;
.De
.SH "SEE ALSO"
XDrawImageString(3X11),
XDrawString(3X11),
XDrawText(3X11),
XmbDrawImageString(3X11),
XmbDrawString(3X11)
.br
\fI\*(xL\fP