/*
This file is part of Ext JS 4.2

Copyright (c) 2011-2013 Sencha Inc

Contact:  http://www.sencha.com/contact

Commercial Usage
Licensees holding valid commercial licenses may use this file in accordance with the Commercial
Software License Agreement provided with the Software or, alternatively, in accordance with the
terms contained in a written agreement between you and Sencha.

If you are unsure which license is appropriate for your use, please contact the sales department
at http://www.sencha.com/contact.

Build date: 2013-09-18 17:18:59 (940c324ac822b840618a3a8b2b4b873f83a1a9b1)
*/
/**
 * Component layout for editors
 * @private
 */
Ext.define('Ext.layout.container.Editor', {

    /* Begin Definitions */

    alias: 'layout.editor',

    extend: 'Ext.layout.container.Container',

    /* End Definitions */

    autoSizeDefault: {
        width: 'field',
        height: 'field'    
    },

    sizePolicies: {
        // indexed by autoSize.width
        $: {
            // indexed by autoSize.height
            $: {
                readsWidth: 1,
                readsHeight: 1,
                setsWidth: 0,
                setsHeight: 0
            },
            boundEl: {
                readsWidth: 1,
                readsHeight: 0,
                setsWidth: 0,
                setsHeight: 1
            }
        },

        boundEl: {
            // indexed by autoSize.height
            $: {
                readsWidth: 0,
                readsHeight: 1,
                setsWidth: 1,
                setsHeight: 0
            },
            boundEl: {
                readsWidth: 0,
                readsHeight: 0,
                setsWidth: 1,
                setsHeight: 1
            }
        }
    },

    getItemSizePolicy: function (item) {
        var me = this,
            autoSize = me.owner.autoSize,
            key = autoSize && autoSize.width,
            policy = me.sizePolicies;

        policy = policy[key] || policy.$;

        key = autoSize && autoSize.height;
        policy = policy[key] || policy.$;

        return policy;
    },

    calculate: function(ownerContext) {
        var me = this,
            owner = me.owner,
            autoSize = owner.autoSize,
            fieldWidth,
            fieldHeight;
            
        if (autoSize === true) {
            autoSize = me.autoSizeDefault;
        }

        // Calculate size of both Editor, and its owned Field
        if (autoSize) {
            fieldWidth  = me.getDimension(owner, autoSize.width,  'getWidth',  owner.width);
            fieldHeight = me.getDimension(owner, autoSize.height, 'getHeight', owner.height);
        }

        // Set Field size
        ownerContext.childItems[0].setSize(fieldWidth, fieldHeight);

        // Bypass validity checking. Container layouts should not usually set their owner's size.
        ownerContext.setWidth(fieldWidth);
        ownerContext.setHeight(fieldHeight);

        // This is a Container layout, so publish content size
        ownerContext.setContentSize(fieldWidth || owner.field.getWidth(),
                                    fieldHeight || owner.field.getHeight());
    },

    getDimension: function(owner, type, getMethod, ownerSize){
        switch (type) {
            // Size to boundEl's dimension
            case 'boundEl':
                return owner.boundEl[getMethod]();

            // Auto size (shrink wrap the Field's size
            case 'field':
                return undefined;

            // Size to the Editor's configured size
            default:
                return ownerSize;
        }
    }
});
