/*! - * Ext JS Library 3.3.1 - * Copyright(c) 2006-2010 Sencha Inc. - * licensing@sencha.com - * http://www.sencha.com/license - */ -/** - * @class Ext.layout.ColumnLayout - * @extends Ext.layout.ContainerLayout - *- - \ No newline at end of fileThis 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.
- *ColumnLayout does not have any direct config options (other than inherited ones), but it does support a - * specific config property of columnWidth 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).
- *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).
- *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 remaining 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:
- *- */ -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; - } - - /** - * @property activeItem - * @hide - */ -}); - -Ext.Container.LAYOUTS['column'] = Ext.layout.ColumnLayout; --// 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 - }] -}); -