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



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NAME
       place - Geometry manager for fixed or rubber-sheet placement

SYNOPSIS
       place window option value ?option value ...?

       place configure window option value ?option value ...?

       place forget window

       place info window

       place slaves window
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DESCRIPTION
       The  placer  is	a  geometry  manager for Ck.  It provides simple fixed
       placement of windows, where you specify the exact size and location  of
       one window, called the slave, within another window, called the master.
       The placer also provides rubber-sheet placement, where you specify  the
       size  and  location of the slave in terms of the dimensions of the mas-
       ter, so that the slave changes size and location in response to changes
       in  the size of the master.  Lastly, the placer allows you to mix these
       styles of placement so that, for example, the slave has a  fixed	 width
       and height but is centered inside the master.

       If  the	first  argument	 to the place command is a window path name or
       configure then the command arranges for the placer to manage the geome-
       try of a slave whose path name is window.  The remaining arguments con-
       sist of one or more option-value pairs that specify the	way  in	 which
       window's	 geometry  is managed.	If the placer is already managing win-
       dow, then the option-value pairs modify the configuration  for  window.
       In  this form the place command returns an empty string as result.  The
       following option-value pairs are supported:

       -x location
	      Location specifies the x-coordinate within the master window  of
	      the  anchor  point  for  window.	 The  location is specified in
	      screen columns and need not lie within the bounds of the	master
	      window.

       -relx location
	      Location	specifies the x-coordinate within the master window of
	      the anchor point for window.  In this case the location is spec-
	      ified  in	 a  relative  fashion as a floating-point number:  0.0
	      corresponds to the left edge of the master and  1.0  corresponds
	      to  the  right  edge of the master.  Location need not be in the
	      range 0.0-1.0.  If both -x and -relx are specified for  a	 slave
	      then  their values are summed.  For example, -relx 0.5 -x -2 po-
	      sitions the left edge of the slave 2 columns to the left of  the
	      center of its master.

       -y location
	      Location	specifies the y-coordinate within the master window of
	      the anchor point for  window.   The  location  is	 specified  in
	      screen  lines  and  need not lie within the bounds of the master
	      window.

       -rely location
	      Location specifies the y-coordinate within the master window  of
	      the  anchor  point for window.  In this case the value is speci-
	      fied in a relative fashion as a floating-point number:  0.0 cor-
	      responds	to  the	 top edge of the master and 1.0 corresponds to
	      the bottom edge of the master.  Location	need  not  be  in  the
	      range  0.0-1.0.	If both -y and -rely are specified for a slave
	      then their values are summed.  For example, -rely 0.5 -x 3 posi-
	      tions  the top edge of the slave 3 lines below the center of its
	      master.

       -anchor where
	      Where specifies which point of window is to be positioned at the
	      (x,y) location selected by the -x, -y, -relx, and -rely options.
	      The anchor point is in terms of the outer area of window includ-
	      ing  its	border,	 if  any.  Thus if where is se then the lower-
	      right corner of window's border will appear at the  given	 (x,y)
	      location in the master.  The anchor position defaults to nw.

       -width size
	      Size  specifies  the  width  for	window in screen columns.  The
	      width will be the outer width of window including its border, if
	      any.   If	 size is an empty string, or if no -width or -relwidth
	      option is specified, then the width requested internally by  the
	      window will be used.

       -relwidth size
	      Size  specifies the width for window.  In this case the width is
	      specified as a floating-point number relative to	the  width  of
	      the master: 0.5 means window will be half as wide as the master,
	      1.0 means window will have the same width as the master, and  so
	      on.   If	both  -width  and -relwidth are specified for a slave,
	      their values are summed.	For example, -relwidth	1.0  -width  5
	      makes the slave 5 columns wider than the master.

       -height size
	      Size  specifies  the  height  for	 window	 in screen lines.  The
	      height will be the outer dimension of window including its  bor-
	      der,  if	any.   If size is an empty string, or if no -height or
	      -relheight option is specified, then the height requested inter-
	      nally by the window will be used.

       -relheight size
	      Size  specifies  the height for window.  In this case the height
	      is specified as a floating-point number relative to  the	height
	      of the master: 0.5 means window will be half as high as the mas-
	      ter, 1.0 means window will have the same height as  the  master,
	      and  so  on.  If both -height and -relheight are specified for a
	      slave, their values are summed.	For  example,  -relheight  1.0
	      -height -2 makes the slave 2 lines shorter than the master.

       -bordermode mode
	      Mode  determines	the  degree to which borders within the master
	      are used in determining the placement of the slave.  The default
	      and  most	 common value is inside.  In this case the placer con-
	      siders the area of the master to be the innermost	 area  of  the
	      master,  inside  any border: an option of -x 0 corresponds to an
	      x-coordinate just inside the border and an option	 of  -relwidth
	      1.0  means window will fill the area inside the master's border.
	      If mode is ignore, borders are ignored: the area of  the	master
	      is considered to be its official area, which includes any inter-
	      nal border.

       If the same value is specified separately with two  different  options,
       such as -x and -relx, then the most recent option is used and the older
       one is ignored.

       The place slaves command returns a list of all the  slave  windows  for
       which  window is the master.  If there are no slaves for window then an
       empty string is returned.

       The place forget command causes the placer to stop managing the	geome-
       try  of	window.	  As  a side effect of this command window will be un-
       mapped so that it doesn't appear on the screen.	If window  isn't  cur-
       rently  managed	by  the	 placer then the command has no effect.	 Place
       forget returns an empty string as result.

       The place info command returns a list giving the current	 configuration
       of window.  The list consists of option-value pairs in exactly the same
       form as might be specified to the place configure command.  If the con-
       figuration of a window has been retrieved with place info, that config-
       uration can be restored later by first using place forget to erase  any
       existing	 information  for the window and then invoking place configure
       with the saved information.


FINE POINTS
       Unlike many other geometry managers (such as  the  packer)  the	placer
       does not make any attempt to manipulate the geometry of the master win-
       dows or the parents of slave windows (i.e. it  doesn't  set  their  re-
       quested	sizes).	 To control the sizes of these windows, make them win-
       dows like frames and canvases that provide  configuration  options  for
       this purpose.

       The  place  command is the only way to position toplevel windows on the
       screen. In this special case, the master of a toplevel  window  is  as-
       sumed to be the entire screen area and the toplevel's location and area
       is computed based on the screen's area.


KEYWORDS
       geometry manager, height, location, master, place, rubber sheet, slave,
       width, toplevel



Ck				      8.0			      place(n)
