/** - * @class Ext.layout.ColumnLayout - * @extends Ext.layout.ContainerLayout - *- - \ No newline at end of file + + + + +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.
- *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, - - extraCls: 'x-column', - - scrollOffset : 0, - - // private - - targetCls: 'x-column-layout-ct', - - isValidParent : function(c, target){ - return c.getPositionEl().dom.parentNode == this.innerCt.dom; - }, - - // private - onLayout : function(ct, target){ - var cs = ct.items.items, len = cs.length, c, i; - - 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'}); - } - this.renderAll(ct, this.innerCt); - - var size = target.getViewSize(true); - - 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]; - if(!c.columnWidth){ - pw -= (c.getSize().width + c.getPositionEl().getMargins('lr')); - } - } - - pw = pw < 0 ? 0 : pw; - - for(i = 0; i < len; i++){ - c = cs[i]; - if(c.columnWidth){ - c.setSize(Math.floor(c.columnWidth * pw) - c.getPositionEl().getMargins('lr')); - } - } - } - - /** - * @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 - }] -}); -
/**
+ * @class Ext.grid.ColumnLayout
+ * @extends Ext.layout.container.HBox
+ * @private
+ *
+ * <p>This class is used only by the grid's HeaderContainer docked child.</p>
+ *
+ * <p>This class adds the ability to shrink the vertical size of the inner container element back if a grouped
+ * column header has all its child columns dragged out, and the whole HeaderContainer needs to shrink back down.</p>
+ *
+ * <p>It also enforces the grid's HeaderContainer's forceFit config by, after every calaculateChildBoxes call, converting
+ * all pixel widths into flex values, so that propertions are maintained upon width change of the grid.</p>
+ *
+ * <p>Also, after every layout, after all headers have attained their 'stretchmax' height, it goes through and calls
+ * <code>setPadding</code> on the columns so that they lay out correctly. TODO: implement a ColumnHeader component
+ * layout which takes responsibility for this, and will run upon resize.</p>
+ */
+Ext.define('Ext.grid.ColumnLayout', {
+ extend: 'Ext.layout.container.HBox',
+ alias: 'layout.gridcolumn',
+ type : 'column',
+
+ reserveOffset: false,
+
+ // Height-stretched innerCt must be able to revert back to unstretched height
+ clearInnerCtOnLayout: false,
+
+ beforeLayout: function() {
+ var me = this,
+ i = 0,
+ items = me.getLayoutItems(),
+ len = items.length,
+ item, returnValue,
+ s;
+
+ // Scrollbar offset defined by width of any vertical scroller in the owning grid
+ if (!Ext.isDefined(me.availableSpaceOffset)) {
+ s = me.owner.up('tablepanel').verticalScroller;
+ me.availableSpaceOffset = s ? s.width-1 : 0;
+ }
+
+ returnValue = me.callParent(arguments);
+
+ // Size to a sane minimum height before possibly being stretched to accommodate grouped headers
+ me.innerCt.setHeight(23);
+
+ // Unstretch child items before the layout which stretches them.
+ if (me.align == 'stretchmax') {
+ for (; i < len; i++) {
+ item = items[i];
+ item.el.setStyle({
+ height: 'auto'
+ });
+ item.titleContainer.setStyle({
+ height: 'auto',
+ paddingTop: '0'
+ });
+ if (item.componentLayout && item.componentLayout.lastComponentSize) {
+ item.componentLayout.lastComponentSize.height = item.el.dom.offsetHeight;
+ }
+ }
+ }
+ return returnValue;
+ },
+
+ // Override to enforce the forceFit config.
+ calculateChildBoxes: function(visibleItems, targetSize) {
+ var me = this,
+ calculations = me.callParent(arguments),
+ boxes = calculations.boxes,
+ metaData = calculations.meta,
+ len = boxes.length, i = 0, box, item;
+
+ if (targetSize.width && !me.isColumn) {
+ // If configured forceFit then all columns will be flexed
+ if (me.owner.forceFit) {
+
+ for (; i < len; i++) {
+ box = boxes[i];
+ item = box.component;
+
+ // Set a sane minWidth for the Box layout to be able to squeeze flexed Headers down to.
+ item.minWidth = Ext.grid.plugin.HeaderResizer.prototype.minColWidth;
+
+ // For forceFit, just use allocated width as the flex value, and the proportions
+ // will end up the same whatever HeaderContainer width they are being forced into.
+ item.flex = box.width;
+ }
+
+ // Recalculate based upon all columns now being flexed instead of sized.
+ calculations = me.callParent(arguments);
+ }
+ else if (metaData.tooNarrow) {
+ targetSize.width = metaData.desiredSize;
+ }
+ }
+
+ return calculations;
+ },
+
+ afterLayout: function() {
+ var me = this,
+ i = 0,
+ items = me.getLayoutItems(),
+ len = items.length;
+
+ me.callParent(arguments);
+
+ // Set up padding in items
+ if (!me.owner.hideHeaders && me.align == 'stretchmax') {
+ for (; i < len; i++) {
+ items[i].setPadding();
+ }
+ }
+ },
+
+ // FIX: when flexing we actually don't have enough space as we would
+ // typically because of the scrollOffset on the GridView, must reserve this
+ updateInnerCtSize: function(tSize, calcs) {
+ var me = this,
+ extra;
+
+ // Columns must not account for scroll offset
+ if (!me.isColumn) {
+ me.tooNarrow = calcs.meta.tooNarrow;
+ extra = (me.reserveOffset ? me.availableSpaceOffset : 0);
+
+ if (calcs.meta.tooNarrow) {
+ tSize.width = calcs.meta.desiredSize + extra;
+ } else {
+ tSize.width += extra;
+ }
+ }
+
+ return me.callParent(arguments);
+ },
+
+ doOwnerCtLayouts: function() {
+ var ownerCt = this.owner.ownerCt;
+ if (!ownerCt.componentLayout.layoutBusy) {
+ ownerCt.doComponentLayout();
+ }
+ }
+});
+
+