js画图开发库--mxgraph--[labels-标签.html]
?js画图开发库--mxgraph--[labels-标签.html]?
?![js画图开发库-mxgraph-[labels-标签.html]](http://img.reader8.com/uploadfile/jiaocheng/2014/0125/2014012519150912233.png)
?
?
<!Doctype html><html xmlns=http://www.w3.org/1999/xhtml><head><meta http-equiv=Content-Type content="text/html;charset=utf-8"><title>标签</title><!-- 如果本文件的包与src不是在同一个目录,就要将basepath设置到src目录下 --><script type="text/javascript">mxBasePath = '../src';</script><!-- 引入支持库文件 --><script type="text/javascript" src="../src/js/mxClient.js"></script><!-- 示例代码 --><script type="text/javascript">//程序在此启动function main(container){// 检测浏览器兼容性if (!mxClient.isBrowserSupported()){mxUtils.error('Browser is not supported!', 200, false);}else{// 修正不同浏览器的裁剪方式mxClient.NO_FO = mxClient.NO_FO || mxClient.IS_SF || mxClient.IS_GC;// 在容器中创建图形var graph = new mxGraph(container);graph.setTooltips(true);graph.htmlLabels = true;graph.vertexLabelsMovable = true;new mxRubberband(graph);new mxKeyHandler(graph);graph.isCellLocked = function(cell){return this.isCellsLocked();};graph.isCellResizable = function(cell){var geo = this.model.getGeometry(cell);return geo == null || !geo.relative;};// 截去的标签内多余的文字（只显示标签宽度内的文字）graph.getLabel = function(cell){var label = (this.labelsVisible) ? this.convertValueToString(cell) : '';var geometry = this.model.getGeometry(cell);if (!this.model.isCollapsed(cell) && geometry != null && (geometry.offset == null ||(geometry.offset.x == 0 && geometry.offset.y == 0)) && this.model.isVertex(cell) &&geometry.width >= 2){var style = this.getCellStyle(cell);var fontSize = style[mxConstants.STYLE_FONTSIZE] || mxConstants.DEFAULT_FONTSIZE;var max = geometry.width / (fontSize * 0.625);if (max < label.length){return label.substring(0, max) + '...';}}return label;};// 是否折叠graph.isWrapping = function(cell){return this.model.isCollapsed(cell);};// 标签是否被裁剪graph.isLabelClipped = function(cell){var geometry = this.model.getGeometry(cell);return geometry != null && !geometry.relative && (geometry.offset == null ||(geometry.offset.x == 0 && geometry.offset.y == 0));};// 创建默认窗体var parent = graph.getDefaultParent();// 开启更新事务graph.getModel().beginUpdate();try{var v1 = graph.insertVertex(parent, null, 'vertexLabelsMovable', 20, 20, 80, 30);// 子标签的顶点var label11 = graph.insertVertex(v1, null, 'Label1', 0.5, 1, 0, 0, null, true);var label12 = graph.insertVertex(v1, null, 'Label2', 0.5, 0, 0, 0, null, true);var v2 = graph.insertVertex(parent, null, 'Wrapping and clipping is enabled only if the cell is collapsed, otherwise the label is truncated if there is no manual offset.', 200, 150, 80, 30);v2.geometry.alternateBounds = new mxRectangle(0, 0, 80, 30);var e1 = graph.insertEdge(parent, null, 'edgeLabelsMovable', v1, v2);// 子标签的顶点var label21 = graph.insertVertex(v2, null, 'Label1', 0.5, 1, 0, 0, null, true);var label22 = graph.insertVertex(v2, null, 'Label2', 0.5, 0, 0, 0, null, true);}finally{// 更新事务结束graph.getModel().endUpdate();}}};</script></head><!-- 页面载入时启动程序 --><body onload="main(document.getElementById('graphContainer'))"><!-- 创建带网格壁纸和曲线的一个容器 --><div id="graphContainer"style="position:absolute;top:0px;left:0px;overflow:hidden;width:100%;height:100%;background:url('editors/images/grid.gif')"></div></body></html>?
?
?