place man page on UnixWare

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place(n)		     Tk 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
_________________________________________________________________

DESCRIPTION
       The  placer  is	a  geometry  manager for Tk.  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:

       -in master
	      Master specifes the path name of the window  relative  to	 which
	      window  is  to be placed.	 Master must either be window's parent
	      or a descendant of window's parent.   In	addition,  master  and
	      window  must  both  be descendants of the same top-level window.
	      These restrictions are necessary to  guarantee  that  window  is
	      visible whenever master is visible.  If this option isn't speci‐
	      fied then the master defaults to window's parent.

       -x location
	      Location specifies the x-coordinate within the master window  of
	      the  anchor  point  for  window.	 The  location is specified in
	      screen units (i.e. any of the forms  accepted  by	 Tk_GetPixels)
	      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
	      positions the left edge of the slave 2 pixels 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  units  (i.e.  any of the forms accepted by Tk_GetPixels)
	      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 pixels 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 units (i.e. any of
	      the forms accepted by Tk_GetPixels).   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	speci‐
	      fied,  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 pixels wider than the master.

       -height size
	      Size specifies the height for window in screen units  (i.e.  any
	      of  the forms accepted by Tk_GetPixels).	The height will be the
	      outer dimension of window including its border, if any.  If size
	      is  an  empty  string,  or if no -height or -relheight option is
	      specified, then the height requested internally  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 pixels 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 outside then the placer considers  the	 area  of  the
	      master  to  include its border; this mode is typically used when
	      placing window outside its master, as with the options -x 0 -y 0
	      -anchor  ne.   Lastly, mode may be specified as ignore, in which
	      case borders are ignored:	 the area of the master is  considered
	      to  be  its  official X area, which includes any internal border
	      but no external border.  A bordermode of ignore is probably  not
	      very useful.

       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
       unmapped 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
       It is not necessary for the master window to be the parent of the slave
       window.	This feature is useful in at least two situations.  First, for
       complex	window	layouts it means you can create a hierarchy of subwin‐
       dows whose only purpose is to assist in the layout of the parent.   The
       ``real  children'' of the parent (i.e. the windows that are significant
       for the application's user interface) can be children of the parent yet
       be  placed  inside  the	windows	 of the geometry-management hierarchy.
       This means that the path names of the ``real children''	don't  reflect
       the geometry-management hierarchy and users can specify options for the
       real children without being aware of the structure of the geometry-man‐
       agement hierarchy.

       A  second  reason for having a master different than the slave's parent
       is to tie two siblings together.	 For example, the placer can  be  used
       to  force  a  window always to be positioned centered just below one of
       its siblings by specifying the configuration
	      -in sibling -relx 0.5 -rely 1.0 -anchor n -bordermode outside
       Whenever the sibling is repositioned in the future, the slave  will  be
       repositioned as well.

       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
       requested sizes).  To control the sizes of  these  windows,  make  them
       windows like frames and canvases that provide configuration options for
       this purpose.

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

Tk								      place(n)
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