X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/ee06f37b0f6f6d94cd05a6ffae556660f7c4a2bc..c930e9176a5a85509c5b0230e2bff5c22a591432:/examples/ux/RowLayout.js?ds=sidebyside diff --git a/examples/ux/RowLayout.js b/examples/ux/RowLayout.js new file mode 100644 index 00000000..d274624a --- /dev/null +++ b/examples/ux/RowLayout.js @@ -0,0 +1,128 @@ +/*! + * Ext JS Library 3.0.0 + * Copyright(c) 2006-2009 Ext JS, LLC + * licensing@extjs.com + * http://www.extjs.com/license + */ +// We are adding these custom layouts to a namespace that does not +// exist by default in Ext, so we have to add the namespace first: +Ext.ns('Ext.ux.layout'); + +/** + * @class Ext.ux.layout.RowLayout + * @extends Ext.layout.ContainerLayout + *

This is the layout style of choice for creating structural layouts in a multi-row format where the height of + * each row can be specified as a percentage or fixed height. Row widths can also be fixed, percentage or auto. + * This class is intended to be extended or created via the layout:'ux.row' {@link Ext.Container#layout} config, + * and should generally not need to be created directly via the new keyword.

+ *

RowLayout does not have any direct config options (other than inherited ones), but it does support a + * specific config property of rowHeight that can be included in the config of any panel added to it. The + * layout will use the rowHeight (if present) or height of each panel during layout to determine how to size each panel. + * If height or rowHeight is not specified for a given panel, its height will default to the panel's height (or auto).

+ *

The height property is always evaluated as pixels, and must be a number greater than or equal to 1. + * The rowHeight property is always evaluated as a percentage, and must be a decimal value greater than 0 and + * less than 1 (e.g., .25).

+ *

The basic rules for specifying row heights are pretty simple. The logic makes two passes through the + * set of contained panels. During the first layout pass, all panels that either have a fixed height or none + * specified (auto) are skipped, but their heights are subtracted from the overall container height. During the second + * pass, all panels with rowHeights are assigned pixel heights in proportion to their percentages based on + * the total remaining container height. In other words, percentage height panels are designed to fill the space + * left over by all the fixed-height and/or auto-height panels. Because of this, while you can specify any number of rows + * with different percentages, the rowHeights must always add up to 1 (or 100%) when added together, otherwise your + * layout may not render as expected. Example usage:

+ *

+// All rows are percentages -- they must add up to 1
+var p = new Ext.Panel({
+    title: 'Row Layout - Percentage Only',
+    layout:'ux.row',
+    items: [{
+        title: 'Row 1',
+        rowHeight: .25
+    },{
+        title: 'Row 2',
+        rowHeight: .6
+    },{
+        title: 'Row 3',
+        rowHeight: .15
+    }]
+});
+
+// Mix of height and rowHeight -- all rowHeight values must add
+// up to 1. The first row will take up exactly 120px, and the last two
+// rows will fill the remaining container height.
+var p = new Ext.Panel({
+    title: 'Row Layout - Mixed',
+    layout:'ux.row',
+    items: [{
+        title: 'Row 1',
+        height: 120,
+        // standard panel widths are still supported too:
+        width: '50%' // or 200
+    },{
+        title: 'Row 2',
+        rowHeight: .8,
+        width: 300
+    },{
+        title: 'Row 3',
+        rowHeight: .2
+    }]
+});
+
+ */ +Ext.ux.layout.RowLayout = Ext.extend(Ext.layout.ContainerLayout, { + // private + monitorResize:true, + + // private + isValidParent : function(c, target){ + return c.getEl().dom.parentNode == this.innerCt.dom; + }, + + // private + onLayout : function(ct, target){ + var rs = ct.items.items, len = rs.length, r, i; + + if(!this.innerCt){ + target.addClass('ux-row-layout-ct'); + this.innerCt = target.createChild({cls:'x-row-inner'}); + } + this.renderAll(ct, this.innerCt); + + var size = target.getViewSize(); + + if(size.width < 1 && size.height < 1){ // display none? + return; + } + + var h = size.height - target.getPadding('tb'), + ph = h; + + this.innerCt.setSize({height:h}); + + // some rows can be percentages while others are fixed + // so we need to make 2 passes + + for(i = 0; i < len; i++){ + r = rs[i]; + if(!r.rowHeight){ + ph -= (r.getSize().height + r.getEl().getMargins('tb')); + } + } + + ph = ph < 0 ? 0 : ph; + + for(i = 0; i < len; i++){ + r = rs[i]; + if(r.rowHeight){ + r.setSize({height: Math.floor(r.rowHeight*ph) - r.getEl().getMargins('tb')}); + } + } + } + + /** + * @property activeItem + * @hide + */ +}); + +Ext.Container.LAYOUTS['ux.row'] = Ext.ux.layout.RowLayout;