Hierarchy
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' Ext.container.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:
// All columns are percentages -- they must add up to 1
- Ext.create('Ext.panel.Panel', {
- title: 'Column Layout - Percentage Only',
- width: 350,
- height: 250,
- layout:'column',
- items: [{
- title: 'Column 1',
- columnWidth: .25
- },{
- title: 'Column 2',
- columnWidth: .55
- },{
- title: 'Column 3',
- columnWidth: .20
- }],
- renderTo: Ext.getBody()
- });
-
-// 
-// 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.
-
- Ext.create('Ext.Panel', {
- title: 'Column Layout - Mixed',
- width: 350,
- height: 250,
- layout:'column',
- items: [{
- title: 'Column 1',
- width: 120
- },{
- title: 'Column 2',
- columnWidth: .7
- },{
- title: 'Column 3',
- columnWidth: .3
- }],
- renderTo: Ext.getBody()
- });
-Config Options
CSS Class configs
An optional extra CSS class that will be added to the container. This can be useful for adding -customized styles to the container or any of its children using standard CSS rules. See -Ext.Component.ctCls also.
- - - -Other Configs
Flag to notify the ownerCt Component on afterLayout of a change
-Flag to notify the ownerCt Component on afterLayout of a change
-Flag to notify the ownerCt Container on afterLayout of a change
-Flag to notify the ownerCt Container on afterLayout of a change
-An optional extra CSS class that will be added to the container. This can be useful for adding -customized styles to the container or any of its children using standard CSS rules. See -Ext.Component.ctCls also.
- - - -Methods
Returns an array of child components either for a render phase (Performed in the beforeLayout method of the layout's -base class), or the layout phase (onLayout).
- -Returns
- Array
of child components
-
Returns the element into which rendering must take place. Defaults to the owner Container's Ext.AbstractComponent.targetEl.
- - -May be overridden in layout managers which implement an inner element.
-Returns
- Ext.core.Element -