/**
* @class Ext.layout.Container
* @extends Ext.layout.AbstractContainer
* @private
* 
This class is intended to be extended or created via the {@link Ext.container.Container#layout layout}
* configuration property.  See {@link Ext.container.Container#layout} for additional details.
*/
Ext.define('Ext.layout.Container', {

    /* Begin Definitions */

    extend: 'Ext.layout.AbstractContainer',

    /* End Definitions */

    getLayoutTargetSize : function() {
        var target = this.getTarget(),
            ret;

        if (target) {
            ret = target.getViewSize();

            // IE in will sometimes return a width of 0 on the 1st pass of getViewSize.
            // Use getStyleSize to verify the 0 width, the adjustment pass will then work properly
            // with getViewSize
            if (Ext.isIE && ret.width == 0){
                ret = target.getStyleSize();
            }

            ret.width -= target.getPadding('lr');
            ret.height -= target.getPadding('tb');
        }
        return ret;
    },

    
/**
     * @protected
     * Returns all items that are rendered
     * @return {Array} All matching items
     */
    getRenderedItems: function() {
        var me = this,
            target = me.getTarget(),
            items = me.getLayoutItems(),
            ln = items.length,
            renderedItems = [],
            i, item;

        for (i = 0; i < ln; i++) {
            item = items[i];
            if (item.rendered && me.isValidParent(item, target, i)) {
                renderedItems.push(item);
            }
        }

        return renderedItems;
    },

    
/**
     * @protected
     * Returns all items that are both rendered and visible
     * @return {Array} All matching items
     */
    getVisibleItems: function() {
        var target   = this.getTarget(),
            items = this.getLayoutItems(),
            ln = items.length,
            visibleItems = [],
            i, item;

        for (i = 0; i < ln; i++) {
            item = items[i];
            if (item.rendered && this.isValidParent(item, target, i) && item.hidden !== true) {
                visibleItems.push(item);
            }
        }

        return visibleItems;
    }
});