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 preceding line -- a bit like using 'float' in CSS, except that a new line wraps all the way back to the left.

Preview Image
-------------

![flow.png](flow.png)

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](apps://demobrowser/#layout~Flow.html)

API
---

Here is a link to the API of the layout manager:
[qx.ui.layout.Flow](apps://apiviewer/index.html#qx.ui.layout.Flow)