grid.n

linux系统下的音频通信

'\"
'\" Copyright (c) 1996 Sun Microsystems, Inc.
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\" 
'\" SCCS: @(#) grid.n 1.15 96/12/13 16:46:35
'\" 
.so man.macros
.TH grid n 4.1 Tk "Tk Built-In Commands"
.BS
'\" Note:  do not modify the .SH NAME line immediately below!
.SH NAME
grid \- Geometry manager that arranges widgets in a grid
.SH SYNOPSIS
\fBgrid \fIoption arg \fR?\fIarg ...\fR?
.BE

.SH DESCRIPTION
.PP
The \fBgrid\fR command is used to communicate with the grid
geometry manager that arranges widgets in rows and columns inside
of another window, called the geometry master (or master window).
The \fBgrid\fR command can have any of several forms, depending
on the \fIoption\fR argument:
.TP
\fBgrid \fIslave \fR?\fIslave ...\fR? ?\fIoptions\fR?
If the first argument to \fBgrid\fR is a window name (any value
starting with ``.''), then the command is processed in the same
way as \fBgrid configure\fR.
.TP
\fBgrid bbox \fImaster\fR ?\fIcolumn row\fR? ?\fIcolumn2 row2\fR?
With no arguments, 
the bounding box (in pixels) of the grid is returned.
The return value consists of 4 integers.  The first two are the pixel
offset from the master window (x then y) of the top-left corner of the
grid, and the second two integers are the width and height of the grid,
also in pixels.  If a single \fIcolumn\fP and \fIrow\fP is specified on 
the command line, then the bounding box for that cell is returned, where the
top left cell is numbered from zero.  If both \fIcolumn\fP and \fIrow\fP
arguments are specified, then the bounding box spanning the rows and columns
indicated is returned.
.TP
\fBgrid columnconfigure \fImaster index \fR?\fI\-option value...\fR?
Query or set the column properties of the \fIindex\fP column of the 
geometry master, \fImaster\fP.
The valid options are \fB\-minsize\fP, \fB\-weight\fP and \fB-pad\fP.
.VS
If one or more options are provided, then \fIindex\fP may be given as 
a list of column indeces to which the configuration options will operate on.
.VE
The \fB\-minsize\fP option sets the minimum size, in screen units,
that will be permitted for this column.
The \fB\-weight\fP option (an integer value)
sets the relative weight for apportioning
any extra spaces among
columns.
A weight of zero (0) indicates the column will not deviate from its requested
size.  A column whose weight is two will grow at twice the rate as a column
of weight one when extra space is allocated to the layout.
The \fB-pad\fP option specifies the number of screen units that will be
added to the largest window contained completely in that column when the
grid geometry manager requests a size from the containing window.
If only an option is specified, with no value,
the current value of that option is returned.
If only the master window and index is specified, all the current settings
are returned in an list of "-option value" pairs.
.TP
\fBgrid configure \fIslave \fR?\fIslave ...\fR? ?\fIoptions\fR?
The arguments consist of the names of one or more slave windows
followed by pairs of arguments that specify how
to manage the slaves.
The characters \fB\-\fP,  \fBx\fP and \fB^\fP, 
can be specified instead of a window name to alter the default
location of a \fIslave\fP, as described in the ``RELATIVE PLACEMENT''
section, below.
The following options are supported:
.RS
.TP
\fB\-column \fIn\fR
Insert the slave so that it occupies the \fIn\fPth column in the grid.
Column numbers start with 0.  If this option is not supplied, then the
slave is arranged just to the right of previous slave specified on this
call to \fIgrid\fP, or column "0" if it is the first slave.  For each
\fBx\fP that immediately precedes the \fIslave\fP, the column position
is incremented by one.  Thus the \fBx\fP represents a blank column
for this row in the grid.
.TP
\fB\-columnspan \fIn\fR
Insert the slave so that it occupies \fIn\fP columns in the grid.
The default is one column, unless the window name is followed by a
\fB\-\fP, in which case the columnspan is incremented once for each immediately
following \fB\-\fP.
.TP
\fB\-in \fIother\fR
Insert the slave(s) in the master
window given by \fIother\fR.  The default is the first slave's
parent window.
.TP
\fB\-ipadx \fIamount\fR
The \fIamount\fR specifies how much horizontal internal padding to
leave on each side of the slave(s).  This is space is added
inside the slave(s) border.
The \fIamount\fR must be a valid screen distance, such as \fB2\fR or \fB.5c\fR.
It defaults to 0.
.TP
\fB\-ipady \fIamount\fR
The \fIamount\fR specifies how much vertical internal padding to
leave on on the top and bottom of the slave(s).
This space is added inside the slave(s) border.
The \fIamount\fR  defaults to 0.
.TP
\fB\-padx \fIamount\fR
The \fIamount\fR specifies how much horizontal external padding to
leave on each side of the slave(s), in screen units.
The \fIamount\fR defaults to 0.
This space is added outside the slave(s) border.
.TP
\fB\-pady \fIamount\fR
The \fIamount\fR specifies how much vertical external padding to
leave on the top and bottom of the slave(s), in screen units.
The \fIamount\fR defaults to 0.
This space is added outside the slave(s) border.
.TP
\fB\-row \fIn\fR
Insert the slave so that it occupies the \fIn\fPth row in the grid.
Row numbers start with 0.  If this option is not supplied, then the
slave is arranged on the same row as the previous slave specified on this
call to \fBgrid\fP, or the first unoccupied row if this is the first slave.
.TP
\fB\-rowspan \fIn\fR
Insert the slave so that it occupies \fIn\fP rows in the grid.
The default is one row.  If the next \fBgrid\fP command contains
\fB^\fP characters instead of \fIslaves\fP that line up with the columns
of this \fIslave\fP, then the \fBrowspan\fP of this \fIslave\fP is
extended by one.
.TP
\fB\-sticky \fIstyle\fR
If a slave's cell is larger than its requested dimensions, this
option may be used to position (or stretch) the slave within its cell.
\fIStyle\fR  is a string that contains zero or more of the characters
\fBn\fP, \fBs\fP, \fBe\fP or \fBw\fP.
The string can optionally contains spaces or
commas, but they are ignored.  Each letter refers to a side (north, south,
east, or west) that the slave will "stick" to.  If both \fBn\fP and \fBs\fP (or
\fBe\fP and \fBw\fP) are specified, the slave will be stretched to fill the entire
height (or width) of its cavity.  The \fBsticky\fP option subsumes the
combination of \fB\-anchor\fP and \fB\-fill\fP that is used by \fBpack\fP.
The default is \fB{}\fP, which causes the slave to be centered in its cavity,
at its requested size.
.LP
If any of the slaves are already managed by the geometry manager
then any unspecified options for them retain their previous values rather
than receiving default values.
.RE
.TP
\fBgrid forget \fIslave \fR?\fIslave ...\fR?
Removes each of the \fIslave\fRs from grid for its
master and unmaps their windows.
The slaves will no longer be managed by the grid geometry manager.
The configuration options for that window are forgotten, so that if the
slave is managed once more by the grid geometry manager, the initial
default settings are used.
.TP
\fBgrid info \fIslave\fR
Returns a list whose elements are the current configuration state of
the slave given by \fIslave\fR in the same option-value form that
might be specified to \fBgrid configure\fR.
The first two elements of the list are ``\fB\-in \fImaster\fR'' where