Layouts

Definition

A GUI can have an arbitrary count of layouts which are rendered or hidden. They are defined in ".xeyegui" files in xml syntax. Minimal example of the content of such a file is given below:

<?xml version="1.0"?>
<layout>
  <circlebutton></circlebutton>
</layout>

The outer xml element must be "layout" and there must be exactly one inner element. This inner element could be a grid with multiple elements or only one as described in the example above. For a complete list of available elements take a look at Elements. The layout element in xml can have following attributes:

Attribute	Type	Description
stylesheet	string	Relative path to used stylesheet

More about stylesheets in Styling.

Usage

Adding a layout to an existing GUI is done by calling the addLayout function of the interface with the pointer to the GUI and the relative path to the xml file with the layout.

eyegui::Layout* pLayout = eyegui::addLayout(pGUI, "HelloLayout.xeyegui");

If any parsing errors or warnings appear, the previously defined callbacks are called with a message string describing the problem.