    ContainerLayout
      FitLayout

# Class Ext.layout.FitLayout

Package: | Ext.layout
Defined In: | FitLayout.js
Class: | FitLayout
Subclasses: | AccordionLayout, CardLayout
Extends: | ContainerLayout

This is a base class for layouts that contain a single item that automatically expands to fill the layout's container. This class is intended to be extended or created via the `layout:'fit'` Ext.Container.layout config, and should generally not need to be created directly via the new keyword.

FitLayout does not have any direct config options (other than inherited ones). To fit a panel to a container using FitLayout, simply set layout:'fit' on the container and add a single panel to it. If the container has multiple panels, only the first one will be displayed. Example usage:

    var p = new Ext.Panel({
        title: 'Fit Layout',
        layout:'fit',
        items: {
            title: 'Inner Panel',
            html: '<p>This is the inner panel content</p>',
            border: false
        }
    });

## Config Options

Config Options | Defined By
--- | ---
| extraCls : String An optional extra CSS class that will be added to the container. This can be useful for adding customized styles to t... An optional extra CSS class that will be added to the container. This can be useful for adding customized styles to the container or any of its children using standard CSS rules. See Ext.Component.ctCls also. Note: `extraCls` defaults to `''` except for the following classes which assign a value by default: Absolute Layout : `'x-abs-layout-item'` Box Layout : `'x-box-item'` Column Layout : `'x-column'` To configure the above Classes with an extra CSS class append to the default. For example, for ColumnLayout:
    extraCls: 'x-column custom-class'
| ContainerLayout
| renderHidden : Boolean True to hide each contained item on render (defaults to false). | ContainerLayout

## Public Properties

Property | Defined By
--- | ---
| activeItem : Ext.Component A reference to the Ext.Component that is active. For example, if(myPanel.layout.activeItem.id == 'item-1') { ... } a... A reference to the Ext.Component that is active. For example,
    if(myPanel.layout.activeItem.id == 'item-1') { ... }
`activeItem` only applies to layout styles that can display items one at a time (like Ext.layout.AccordionLayout, Ext.layout.CardLayout and Ext.layout.FitLayout). Read-only. Related to Ext.Container.activeItem. | ContainerLayout
| fieldTpl : Ext.Template The Ext.Template used by Field rendering layout classes (such as Ext.layout.FormLayout) to create the DOM structure o... The Ext.Template used by Field rendering layout classes (such as Ext.layout.FormLayout) to create the DOM structure of a fully wrapped, labeled and styled form Field. A default Template is supplied, but this may be overriden to create custom field structures. The template processes values returned from Ext.layout.FormLayout.getTemplateArgs. | ContainerLayout
| if : Object This monitorResize flag will be renamed soon as to avoid confusion with the Container version which hooks onWindowRes... This monitorResize flag will be renamed soon as to avoid confusion with the Container version which hooks onWindowResize to doLayout monitorResize flag in this context attaches the resize event between a container and it's layout | ContainerLayout

## Public Methods

Method | Defined By
--- | ---
| parseMargins( Number|String v ) : Object Parses a number or string representing margin sizes into an object. Supports CSS-style margin declarations (e.g. 10, ... Parses a number or string representing margin sizes into an object. Supports CSS-style margin declarations (e.g. 10, "10", "10 10", "10 10 10" and "10 10 10 10" are all valid options and would return the same result) Parameters: `v` : Number|String The encoded margins Returns: `Object` An object with margin sizes for top, right, bottom and left | ContainerLayout

## Public Events

This class has no public events.