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XmIconBox

NAME

The IconBox widget class

SYNOPSIS

#include <Xm/IconBox.h>

DESCRIPTION

The Icon Box widget lays out its children on a grid with each child forced to be the same size and with the location of each child specified as an X and Y location on the grid.

The size of the Icon Box, its children, and the number of cells displayed are calculated as described below. The general idea is that all children are always be shown and should be given their desired size whenever possible. The user may add or delete cells by resizing this window using the window manager widget.

•   The preferred size is calculated by using the maximum desired child height or

width and making sure that these are no smaller than the minimum sizes. This size is multiplied by the number of cells along the axis and properly padded to come up with a preferred size. The number of cells is the maximum of the largest cellX or cellY value and the minimum number of horizontal or vertical cells.

•   If the Icon box is forced larger than its preferred size more cells are added at the

bottom-right of the widget while the children all remain at their preferred sizes.

•   If the Icon box is forced smaller than its preferred size each cell is forced to be

smaller in order to allow all children to fit within the Icon Box. All children will be forced to the same smaller size.

Normal Resources

Name	Class	Type	Init. Value
horizontalMargin	Margin	HorizontalDimension	4
minimumHorizontalCells	DefaultCells	Int	8
minimumVerticalCells	DefaultCells	Int	4
minimumCellHeight	MinimumCellSize	VerticalDimension	10
minimumCellWidth	MinimumCellSize	HorizontalDimension	20
verticalMargin	Margin	VerticalDimension	4

All resource names begin with XmN and all resource class names begin with XmC.

horizontalMargin

verticalMargin

The amount of space between each cell and its neighbor or the edge of the Icon Box.

minimumHorizontalCells

minimumVerticalCells

The minimum number of cells to display in the horizontal and vertical directions. This number of cells will always be displayed.

minimumCellWidth

minimumCellHeight

The smallest size the cells are allowed to be in the direction specified.

Constraint Resources

Name	Class	Type	Initial Value
cellX	CellX	Short	XmIconBoxAnyCell
cellY	CellY	Short	XmIconBoxAnyCell

All resource names begin with XmN and all resource class names begin with XmC.

cellX

cellY

The location of this cell in cell space. These coordinates may be any positive integer. They determine where this widget will be placed relative to its neighbors. Having two children at the same cell X and cell Y location will result in undefined behavior. To place a cell at any empty cell, set cell X and cell Y to the value XmIconBoxAnyCell.

Convenience Routines

XmCreateIconBox - Widget creation convenience routine

 
 Widget XmCreateIconBox( 
      Widget parent,     /* Widget id of parent for IconBox */
      String name,       /* Name of the created widget */
      ArgList args,      /* argument list */
      Cardinal num_args  /* number of items in argument list */
      ) 
 
 
 To find out if a cell in the icon box is empty use the XiIconBoxIsCellEmpty function:
 
 

Boolean XmIconBoxIsCellEmpty(Widget w, Position cell_x, Position cell_y)

w the icon box widget

cell_x the x location of the cell to check

cell_y the y location of the cell to check

 
 This function returns True if the specified cell has no child in it, and False otherwise. 
 
 

 

SEE ALSO

XiIconButton(3I)

COPYRIGHT

Copyright (c) 1992 by Integrated Computer Solutions, Inc.