grid(n)			     Ck Built-In Commands		       grid(n)



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NAME
       grid - Geometry manager that arranges widgets in a grid

SYNOPSIS
       grid option arg ?arg ...?
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DESCRIPTION
       The  grid 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 grid command can
       have any of several forms, depending on the option argument:

       grid slave ?slave ...? ?options?
	      If the first argument to grid is a window name (any value start-
	      ing  with	 ``.''), then the command is processed in the same way
	      as grid configure.

       grid bbox master column row
	      The bounding box (in rows or columns) is returned for the	 space
	      occupied	by the grid position indicated by column and row.  The
	      return value consists of 4 integers.  The first two are the col-
	      umn/row offset from the master window (x then y) of the top-left
	      corner of the grid cell, and the second two are  the  width  and
	      height of the cell.

       grid columnconfigure master index ?-option value...?
	      Query  or	 set  the column properties of the index column of the
	      geometry master, master.	The valid  options  are	 -minsize  and
	      -weight.	 The -minsize option sets the minimum column size, and
	      the -weight option (a floating point value)  sets	 the  relative
	      weight  for  apportioning any extra spaces among columns.	 If no
	      value is specified, the current value is returned.

       grid configure slave ?slave ...? ?options?
	      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 -,  x and ^, can be specified instead of
	      a	 window	 name to alter the default location of a slave, as de-
	      scribed in the ``RELATIVE PLACEMENT'' section, below.  The  fol-
	      lowing options are supported:

	      -column n
		     Insert  the  slave	 so that it occupies the nth 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	 grid,
		     or	 column "0" if it is the first slave.  For each x that
		     immediately precedes the slave, the  column  position  is
		     incremented by one.  Thus the x represents a blank column
		     for this row in the grid.

	      -columnspan n
		     Insert the slave so that it occupies  n  columns  in  the
		     grid.   The default is one column, unless the window name
		     is followed by a -, in which case the columnspan  is  in-
		     cremented once for each immediately following -.

	      -ipadx amount
		     The amount specifies how much horizontal internal padding
		     to leave on each side of the slave(s).  Amount is	speci-
		     fied in terminal columns. It defaults to 0.

	      -ipady amount
		     The  amount  specifies how much vertical internal padding
		     to leave on on  the  top  and  bottom  of	the  slave(s).
		     Amount is specified in terminal rows. It defaults to 0.

	      -padx amount
		     The amount specifies how much horizontal external padding
		     to leave on each side of the  slave(s).  The  amount  de-
		     faults to 0.

	      -pady amount
		     The  amount  specifies how much vertical external padding
		     to leave on the top  and  bottom  of  the	slave(s).  The
		     amount defaults to 0.

	      -row n Insert  the  slave so that it occupies the nth 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 grid, or the
		     first unoccupied row if this is the first slave.

	      -rowspan n
		     Insert  the slave so that it occupies n rows in the grid.
		     The default is one row.  If the next  grid	 command  con-
		     tains  ^  characters  instead of slaves that line up with
		     the columns of this slave, then the rowspan of this slave
		     is extended by one.

	      -sticky style
		     If	 a  slave's parcel is larger than its requested dimen-
		     sions, this option may be used to position	 (or  stretch)
		     the  slave	 within	 its  cavity.  Style  is a string that
		     contains zero or more of the characters n,	 s,  e	or  w.
		     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 n and s (or e and w) are specified, the  slave  will
		     be	 stretched to fill the entire height (or width) of its
		     cavity.  The sticky option subsumes  the  combination  of
		     -anchor  and  -fill that is used by pack.	The default is
		     {}, which causes the slave to be centered in its  cavity,
		     at its requested size.

	      If any of the slaves are already managed by the geometry manager
	      then any unspecified options for them retain their previous val-
	      ues rather than receiving default values.

       grid forget slave ?slave ...?
	      Removes  each  of the slaves from grid for its master and unmaps
	      their windows.  The slaves will no longer be managed by the grid
	      geometry manager.

       grid info slave
	      Returns  a  list	whose  elements	 are the current configuration
	      state of the slave given by slave in the same option-value  form
	      that might be specified to grid configure.

       grid location master x y
	      Given  x	and  y values in terminal columns/rows relative to the
	      master window, the column and row number at that x and  y	 loca-
	      tion  is	returned.  For locations that are above or to the left
	      of the grid, -1 is returned.

       grid propagate master ?boolean?
	      If boolean has a true boolean value such as 1 or on then	propa-
	      gation  is  enabled for master, which must be a window name (see
	      ``GEOMETRY PROPAGATION'' below).	If boolean has a false boolean
	      value  then  propagation	is  disabled for master.  In either of
	      these cases an empty string is returned.	If boolean is  omitted
	      then  the command returns 0 or 1 to indicate whether propagation
	      is currently enabled for master.	Propagation is enabled by  de-
	      fault.

       grid rowconfigure master index ?-option value...?
	      Query or set the row properties of the index row of the geometry
	      master, master.  The valid options  are  -minsize	 and  -weight.
	      Minsize  sets  the minimum row size, in screen units, and weight
	      sets the relative weight for apportioning any extra spaces among
	      rows.  If no value is specified, the current value is returned.

       grid size master
	      Returns  the size of the grid (in columns then rows) for master.
	      The size is determined either by the slave occupying the largest
	      row  or  column,	or the largest column or row with a minsize or
	      weight.

       grid slaves master ?-option value?
	      If no options are supplied, a list of all of the slaves in  mas-
	      ter  are	returned.  Option  can be either -row or -column which
	      causes only the slaves in the row (or column) specified by value
	      to be returned.

RELATIVE PLACEMENT
       The  grid  command  contains  a limited set of capabilities that permit
       layouts to be created without specifying the row and column information
       for  each  slave.   This permits slaves to be rearranged, added, or re-
       moved without the need to explicitly specify row	 and  column  informa-
       tion.   When no column or row information is specified for a slave, de-
       fault values are chosen for column, row, columnspan and rowspan at  the
       time the slave is managed. The values are chosen based upon the current
       layout of the grid, the position of the slave relative to other	slaves
       in  the same grid command, and the presence of the characters -, ^, and
       ^ in grid command where slave names are normally expected.

	      -	     This increases the columnspan of the slave to  the	 left.
		     Several  -'s  in  a  row  will  successively increase the
		     columnspan. S - may not follow a ^ or a x.

	      x	     This leaves an empty column between the slave on the left
		     and the slave on the right.

	      ^	     This  extends  the	 rowspan of the slave above the ^'s in
		     the grid.	The number of ^'s in a row must match the num-
		     ber of columns spanned by the slave above it.

GEOMETRY PROPAGATION
       Grid  normally computes how large a master must be to just exactly meet
       the needs of its slaves, and it sets the requested width and height  of
       the  master  to	these dimensions.  This causes geometry information to
       propagate up through a window hierarchy to a top-level window  so  that
       the  entire sub-tree sizes itself to fit the needs of the leaf windows.
       However, the grid propagate command may be used to turn off propagation
       for one or more masters.	 If propagation is disabled then grid will not
       set the requested width and height of the master window.	 This  may  be
       useful  if,  for	 example, you wish for a master window to have a fixed
       size that you specify.


RESTRICTIONS ON MASTER WINDOWS
       The master for each slave must be the slave's parent.  This restriction
       is necessary to guarantee that the slave can be placed over any part of
       its master that is visible without danger of the slave being clipped by
       its parent.


CREDITS
       The grid command is based on the GridBag geometry manager written by D.
       Stein.


KEYWORDS
       geometry manager, location, grid, parcel, propagation, size, pack



Ck				      8.0			       grid(n)
