absolutelayout.js

web2.0完美实现框架

/*
 * Ext JS Library 2.0.2
 * Copyright(c) 2006-2008, Ext JS, LLC.
 * [e-mail]
 * 
 * http://extjs.com/license
 */

/**
 * @class Ext.layout.AbsoluteLayout
 * @extends Ext.layout.AnchorLayout
 * <p>Inherits the anchoring of {@link Ext.layout.AnchorLayout} and adds the ability for x/y positioning using the
 * standard x and y component config options.</p>
 */
Ext.layout.AbsoluteLayout = Ext.extend(Ext.layout.AnchorLayout, {
    extraCls: 'x-abs-layout-item',
    isForm: false,
    // private
    setContainer : function(ct){
        Ext.layout.AbsoluteLayout.superclass.setContainer.call(this, ct);
        if(ct.isXType('form')){
            this.isForm = true;
        }
    },

    onLayout : function(ct, target){
        if(this.isForm){ ct.body.position(); } else { target.position(); }
        Ext.layout.AbsoluteLayout.superclass.onLayout.call(this, ct, target);
    },

    // private
    getAnchorViewSize : function(ct, target){
        return this.isForm ? ct.body.getStyleSize() : Ext.layout.AbsoluteLayout.superclass.getAnchorViewSize.call(this, ct, target);
    },

    // private
    isValidParent : function(c, target){
        return this.isForm ? true : Ext.layout.AbsoluteLayout.superclass.isValidParent.call(this, c, target);
    },

    // private
    adjustWidthAnchor : function(value, comp){
        return value ? value - comp.getPosition(true)[0] : value;
    },

    // private
    adjustHeightAnchor : function(value, comp){
        return  value ? value - comp.getPosition(true)[1] : value;
    }
    /**
     * @property activeItem
     * @hide
     */
});
Ext.Container.LAYOUTS['absolute'] = Ext.layout.AbsoluteLayout;