Spacer widget module for adding empty space in layouts.

This module provides an invisible spacer widget used to create gaps between other widgets in horizontal or vertical layouts.

Usage

Basic spacer (1 unit):

spacer:new(gap1)

Spacer with custom size:

{spacer, [{id, gap1}, {size, 3}]}

Properties

• size (integer): Number of units (characters or lines) to occupy in the layout
• width (integer): Default 1, usually overridden by layout
• height (integer): Default 1, usually overridden by layout

Behavior

The spacer renders nothing (doesn't modify the buffer) but occupies space in the layout. Use it to create:

• Gaps between widgets
• Padding in containers
• Alignment spacing

Layout Usage

In horizontal layouts, spacer size affects horizontal spacing. In vertical layouts, spacer size affects vertical spacing.

{hbox, [{id, row}], [
    {button, [{id, btn1}], "OK"},
    {spacer, [{size, 5}]},
    {button, [{id, btn2}], "Cancel"}
]}