Upgrade to ExtJS 4.0.0 - Released 04/26/2011

[extjs.git] / examples / ux / layout / Center.js

diff --git a/examples/ux/layout/Center.js b/examples/ux/layout/Center.js
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+/**
+ * @class Ext.ux.layout.Center
+ * @extends Ext.layout.container.Fit
+ * <p>This is a very simple layout style used to center contents within a container.  This layout works within
+ * nested containers and can also be used as expected as a Viewport layout to center the page layout.</p>
+ * <p>As a subclass of FitLayout, CenterLayout expects to have a single child panel of the container that uses
+ * the layout.  The layout does not require any config options, although the child panel contained within the
+ * layout must provide a fixed or percentage width.  The child panel's height will fit to the container by
+ * default, but you can specify <tt>autoHeight:true</tt> to allow it to autosize based on its content height.
+ * Example usage:</p>
+ * <pre><code>
+// The content panel is centered in the container
+var p = Ext.create('Ext.Panel', {
+    title: 'Center Layout',
+    layout: 'ux.center',
+    items: [{
+        title: 'Centered Content',
+        widthRatio: 0.75,
+        html: 'Some content'
+    }]
+});
+
+// If you leave the title blank and specify no border
+// you'll create a non-visual, structural panel just
+// for centering the contents in the main container.
+var p = Ext.create('Ext.Panel', {
+    layout: 'ux.center',
+    border: false,
+    items: [{
+        title: 'Centered Content',
+        width: 300,
+        autoHeight: true,
+        html: 'Some content'
+    }]
+});
+</code></pre>
+ */
+Ext.define('Ext.ux.layout.Center', {
+    extend: 'Ext.layout.container.Fit',
+    alias: 'layout.ux.center',
+       // private
+    setItemSize : function(item, width, height){
+        this.owner.addCls('ux-layout-center');
+        item.addCls('ux-layout-center-item');
+        if(item && height > 0) {
+            if (width) {
+                width = item.width;
+                if (Ext.isNumber(item.widthRatio)) {
+                    width = Math.round(this.owner.el.getWidth() * item.widthRatio);
+                }
+            }
+            item.setSize(width, height);
+        }
+
+    }
+});