+++ /dev/null
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- <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
- <title>The source code</title>
- <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />
- <script type="text/javascript" src="../resources/prettify/prettify.js"></script>
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-<body onload="prettyPrint();">
- <pre class="prettyprint lang-js">/*!
- * Ext JS Library 3.3.1
- * Copyright(c) 2006-2010 Sencha Inc.
- * licensing@sencha.com
- * http://www.sencha.com/license
- */
-<div id="cls-Ext.layout.ColumnLayout"></div>/**
- * @class Ext.layout.ColumnLayout
- * @extends Ext.layout.ContainerLayout
- * <p>This is the layout style of choice for creating structural layouts in a multi-column format where the width of
- * each column can be specified as a percentage or fixed width, but the height is allowed to vary based on the content.
- * This class is intended to be extended or created via the layout:'column' {@link Ext.Container#layout} config,
- * and should generally not need to be created directly via the new keyword.</p>
- * <p>ColumnLayout does not have any direct config options (other than inherited ones), but it does support a
- * specific config property of <b><tt>columnWidth</tt></b> that can be included in the config of any panel added to it. The
- * layout will use the columnWidth (if present) or width of each panel during layout to determine how to size each panel.
- * If width or columnWidth is not specified for a given panel, its width will default to the panel's width (or auto).</p>
- * <p>The width property is always evaluated as pixels, and must be a number greater than or equal to 1.
- * The columnWidth property is always evaluated as a percentage, and must be a decimal value greater than 0 and
- * less than 1 (e.g., .25).</p>
- * <p>The basic rules for specifying column widths 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 width or none
- * specified (auto) are skipped, but their widths are subtracted from the overall container width. During the second
- * pass, all panels with columnWidths are assigned pixel widths in proportion to their percentages based on
- * the total <b>remaining</b> container width. In other words, percentage width panels are designed to fill the space
- * left over by all the fixed-width and/or auto-width panels. Because of this, while you can specify any number of columns
- * with different percentages, the columnWidths must always add up to 1 (or 100%) when added together, otherwise your
- * layout may not render as expected. Example usage:</p>
- * <pre><code>
-// All columns are percentages -- they must add up to 1
-var p = new Ext.Panel({
- title: 'Column Layout - Percentage Only',
- layout:'column',
- items: [{
- title: 'Column 1',
- columnWidth: .25
- },{
- title: 'Column 2',
- columnWidth: .6
- },{
- title: 'Column 3',
- columnWidth: .15
- }]
-});
-
-// Mix of width and columnWidth -- all columnWidth values must add up
-// to 1. The first column will take up exactly 120px, and the last two
-// columns will fill the remaining container width.
-var p = new Ext.Panel({
- title: 'Column Layout - Mixed',
- layout:'column',
- items: [{
- title: 'Column 1',
- width: 120
- },{
- title: 'Column 2',
- columnWidth: .8
- },{
- title: 'Column 3',
- columnWidth: .2
- }]
-});
-</code></pre>
- */
-Ext.layout.ColumnLayout = Ext.extend(Ext.layout.ContainerLayout, {
- // private
- monitorResize:true,
-
- type: 'column',
-
- extraCls: 'x-column',
-
- scrollOffset : 0,
-
- // private
-
- targetCls: 'x-column-layout-ct',
-
- isValidParent : function(c, target){
- return this.innerCt && c.getPositionEl().dom.parentNode == this.innerCt.dom;
- },
-
- getLayoutTargetSize : function() {
- var target = this.container.getLayoutTarget(), ret;
- if (target) {
- ret = target.getViewSize();
-
- // IE in strict mode will 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 && Ext.isStrict && ret.width == 0){
- ret = target.getStyleSize();
- }
-
- ret.width -= target.getPadding('lr');
- ret.height -= target.getPadding('tb');
- }
- return ret;
- },
-
- renderAll : function(ct, target) {
- if(!this.innerCt){
- // the innerCt prevents wrapping and shuffling while
- // the container is resizing
- this.innerCt = target.createChild({cls:'x-column-inner'});
- this.innerCt.createChild({cls:'x-clear'});
- }
- Ext.layout.ColumnLayout.superclass.renderAll.call(this, ct, this.innerCt);
- },
-
- // private
- onLayout : function(ct, target){
- var cs = ct.items.items,
- len = cs.length,
- c,
- i,
- m,
- margins = [];
-
- this.renderAll(ct, target);
-
- var size = this.getLayoutTargetSize();
-
- if(size.width < 1 && size.height < 1){ // display none?
- return;
- }
-
- var w = size.width - this.scrollOffset,
- h = size.height,
- pw = w;
-
- this.innerCt.setWidth(w);
-
- // some columns can be percentages while others are fixed
- // so we need to make 2 passes
-
- for(i = 0; i < len; i++){
- c = cs[i];
- m = c.getPositionEl().getMargins('lr');
- margins[i] = m;
- if(!c.columnWidth){
- pw -= (c.getWidth() + m);
- }
- }
-
- pw = pw < 0 ? 0 : pw;
-
- for(i = 0; i < len; i++){
- c = cs[i];
- m = margins[i];
- if(c.columnWidth){
- c.setSize(Math.floor(c.columnWidth * pw) - m);
- }
- }
-
- // Browsers differ as to when they account for scrollbars. We need to re-measure to see if the scrollbar
- // spaces were accounted for properly. If not, re-layout.
- if (Ext.isIE) {
- if (i = target.getStyle('overflow') && i != 'hidden' && !this.adjustmentPass) {
- var ts = this.getLayoutTargetSize();
- if (ts.width != size.width){
- this.adjustmentPass = true;
- this.onLayout(ct, target);
- }
- }
- }
- delete this.adjustmentPass;
- }
-
- <div id="prop-Ext.layout.ColumnLayout-activeItem"></div>/**
- * @property activeItem
- * @hide
- */
-});
-
-Ext.Container.LAYOUTS['column'] = Ext.layout.ColumnLayout;
-</pre>
-</body>
-</html>
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