Perl in a Nutshell, 2nd Edition

The grid Geometry Manager

The grid geometry manager divides the window into a grid composed of columns and rows starting at 0,0 in the upper lefthand corner. The resulting grid resembles a spreadsheet, with each widget assigned a cell according to the options to grid. To create a grid, create a frame packed inside the parent window and then grid the widgets within the frame.

You can specify explicit rows and columns using options to grid. However, if several widgets are meant to appear in the same row, you can use a single grid command with a list of widgets rather than calling grid for each one. The first widget invokes the grid command, and all other widgets for that column are specified as options to grid. Any subsequent grid commands increment the row by one and start again.

You can use special characters as placeholders:

- (minus sign)

The previous widget should span this column as well. May not follow ^ or x.

x

Leaves a blank space.

^

The widget above this one (same column, previous row) should span this row.

Options to grid are:

-column => n

The column in which to place the widget. n is any integer >= 0.

-row => m

The row in which to place the widget. m is any integer >= 0.

-columnspan => n

The number of columns for the widget to span, beginning with the column specified with -column. n is any integer > 0.

-rowspan => m

The number of rows for the widget to span, beginning with the row specified with -row. mis any integer > 0.

-sticky => sides

Sticks widget to specified side(s). sides contains ...