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72 lines
2.2 KiB
72 lines
2.2 KiB
/** |
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* 水平和垂直方向都居中容器, 非自适应，用于宽度高度固定的面板 |
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* @class BI.CenterLayout |
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* @extends BI.Layout |
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*/ |
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BI.CenterLayout = BI.inherit(BI.Layout, { |
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props: function () { |
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return BI.extend(BI.CenterLayout.superclass.props.apply(this, arguments), { |
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baseCls: "bi-center", |
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hgap: 0, |
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vgap: 0, |
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lgap: 0, |
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rgap: 0, |
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tgap: 0, |
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bgap: 0 |
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}); |
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}, |
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render: function () { |
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BI.CenterLayout.superclass.render.apply(this, arguments); |
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var self = this, o = this.options; |
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var list = [], items = o.items; |
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BI.each(items, function (i) { |
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list.push({ |
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column: i, |
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row: 0, |
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el: BI._lazyCreateWidget({ |
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type: "bi.default", |
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cls: "center-element " + (i === 0 ? "first-element " : "") + (i === items.length - 1 ? "last-element" : "") |
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}) |
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}); |
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}); |
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BI.each(items, function (i, item) { |
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if (item) { |
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var w = BI._lazyCreateWidget(item); |
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w.element.css({ |
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position: "absolute", |
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left: (o.hgap + o.lgap) / BI.pixRatio + BI.pixUnit, |
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right: (o.hgap + o.rgap) / BI.pixRatio + BI.pixUnit, |
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top: (o.vgap + o.tgap) / BI.pixRatio + BI.pixUnit, |
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bottom: (o.vgap + o.bgap) / BI.pixRatio + BI.pixUnit, |
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width: "auto", |
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height: "auto" |
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}); |
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list[i].el.addItem(w); |
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} |
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}); |
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return { |
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type: "bi.grid", |
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ref: function (_ref) { |
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self.layout = _ref; |
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}, |
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columns: list.length, |
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rows: 1, |
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items: list |
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}; |
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}, |
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resize: function () { |
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// console.log("center布局不需要resize"); |
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}, |
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addItem: function (item) { |
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// do nothing |
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throw new Error("不能添加子组件"); |
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}, |
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populate: function (items) { |
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this.layout.populate.apply(this.layout, arguments); |
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} |
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}); |
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BI.shortcut("bi.center", BI.CenterLayout);
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