# qooxdoo

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# Flow

Note

This layout manager is available since qooxdoo 0.8.3.

A basic layout, which supports positioning of child widgets in a 'flowing' manner, starting at the container's top/left position, placing children left to right (like a HBox) until the there's no remaining room for the next child. When out of room on the current line of elements, a new line is started, cleared below the tallest child of the preceeding line -- a bit like using 'float' in CSS, except that a new line wraps all the way back to the left.

## Preview Image

This image shows a gallery implemented using a Flow layout.

## Features

- Reversing children order
- Manual line breaks
- Horizontal alignment of lines
- Vertical alignment of individual widgets within a line
- Margins with horizontal margin collapsing
- Horizontal and vertical spacing
- Height for width calculations
- Auto-sizing

## Description

The Flow layout imitates the way text is rendered. Each child is placed horizontally next to each other. If the remaining space is too small a new line is created and the child is placed at the start of the new line.

It is possible to specify a horizontal alignment for all children. This is equivalent to `center`, `left` or `right` alignment of text blocks. Further it is possible to specify the vertical alignment of each child in a line.

This layout supports `height for width`, which means that given a fixed width it can calculate the required height.

## Layout properties

- lineBreak (Boolean): If set to `true` a forced line break will happen after this child widget.

## Demos

Here are some links that demonstrate the usage of the layout:

- Flow layout demo

## API

Here is a link to the API of the layout manager:
qx.ui.layout.Flow