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295 lines
12 KiB
JavaScript
295 lines
12 KiB
JavaScript
10 months ago
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/**
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* allows for downloading of grid data (store) directly into excel
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* Method: extracts data of gridPanel store, uses columnModel to construct XML excel document,
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* converts to Base64, then loads everything into a data URL link.
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*
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* @author Animal <extjs support team>
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*
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*/
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/**
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* base64 encode / decode
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*
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* @location http://www.webtoolkit.info/
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*
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*/
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var Base64 = (function () {
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// Private property
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var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
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// Private method for UTF-8 encoding
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function utf8Encode(string) {
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string = string.replace(/\r\n/g, "\n");
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var utftext = "";
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for (var n = 0; n < string.length; n++) {
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var c = string.charCodeAt(n);
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if (c < 128) {
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utftext += String.fromCharCode(c);
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}
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else if ((c > 127) && (c < 2048)) {
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utftext += String.fromCharCode((c >> 6) | 192);
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utftext += String.fromCharCode((c & 63) | 128);
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}
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else {
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utftext += String.fromCharCode((c >> 12) | 224);
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utftext += String.fromCharCode(((c >> 6) & 63) | 128);
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utftext += String.fromCharCode((c & 63) | 128);
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}
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}
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return utftext;
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}
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// Public method for encoding
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return {
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encode: (typeof btoa == 'function') ? function (input) {
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return btoa(utf8Encode(input));
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} : function (input) {
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var output = "";
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var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
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var i = 0;
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input = utf8Encode(input);
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while (i < input.length) {
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chr1 = input.charCodeAt(i++);
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chr2 = input.charCodeAt(i++);
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chr3 = input.charCodeAt(i++);
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enc1 = chr1 >> 2;
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enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
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enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
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enc4 = chr3 & 63;
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if (isNaN(chr2)) {
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enc3 = enc4 = 64;
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} else if (isNaN(chr3)) {
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enc4 = 64;
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}
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output = output +
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keyStr.charAt(enc1) + keyStr.charAt(enc2) +
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keyStr.charAt(enc3) + keyStr.charAt(enc4);
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}
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return output;
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}
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};
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})();
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Ext.override(Ext.grid.GridPanel, {
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getExcelXml: function (includeHidden) {
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var worksheet = this.createWorksheet(includeHidden);
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//var totalWidth = this.getColumnModel().getTotalWidth(includeHidden);
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return '<xml version="1.0" encoding="utf-8">' +
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'<ss:Workbook xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:o="urn:schemas-microsoft-com:office:office">' +
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'<o:DocumentProperties><o:Title>' + this.title + '</o:Title></o:DocumentProperties>' +
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'<ss:ExcelWorkbook>' +
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'<ss:WindowHeight>' + worksheet.height + '</ss:WindowHeight>' +
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'<ss:WindowWidth>' + worksheet.width + '</ss:WindowWidth>' +
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'<ss:ProtectStructure>False</ss:ProtectStructure>' +
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'<ss:ProtectWindows>False</ss:ProtectWindows>' +
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'</ss:ExcelWorkbook>' +
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'<ss:Styles>' +
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'<ss:Style ss:ID="Default">' +
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'<ss:Alignment ss:Vertical="Top" ss:WrapText="1" />' +
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'<ss:Font ss:FontName="arial" ss:Size="10" />' +
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'<ss:Borders>' +
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'<ss:Border ss:Color="#e4e4e4" ss:Weight="1" ss:LineStyle="Continuous" ss:Position="Top" />' +
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'<ss:Border ss:Color="#e4e4e4" ss:Weight="1" ss:LineStyle="Continuous" ss:Position="Bottom" />' +
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'<ss:Border ss:Color="#e4e4e4" ss:Weight="1" ss:LineStyle="Continuous" ss:Position="Left" />' +
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'<ss:Border ss:Color="#e4e4e4" ss:Weight="1" ss:LineStyle="Continuous" ss:Position="Right" />' +
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'</ss:Borders>' +
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'<ss:Interior />' +
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'<ss:NumberFormat />' +
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'<ss:Protection />' +
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'</ss:Style>' +
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'<ss:Style ss:ID="title">' +
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'<ss:Borders />' +
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'<ss:Font />' +
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'<ss:Alignment ss:WrapText="1" ss:Vertical="Center" ss:Horizontal="Center" />' +
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'<ss:NumberFormat ss:Format="@" />' +
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'</ss:Style>' +
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'<ss:Style ss:ID="headercell">' +
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'<ss:Font ss:Bold="1" ss:Size="10" />' +
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'<ss:Alignment ss:WrapText="1" ss:Horizontal="Center" />' +
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'<ss:Interior ss:Pattern="Solid" ss:Color="#A3C9F1" />' +
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'</ss:Style>' +
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'<ss:Style ss:ID="even">' +
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'<ss:Interior ss:Pattern="Solid" ss:Color="#DDFFFF" />' +
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'</ss:Style>' +
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'<ss:Style ss:Parent="even" ss:ID="evendate">' +
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'<ss:NumberFormat ss:Format="yyyy-mm-dd" />' +
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'</ss:Style>' +
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'<ss:Style ss:Parent="even" ss:ID="evenint">' +
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'<ss:NumberFormat ss:Format="0" />' +
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'</ss:Style>' +
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'<ss:Style ss:Parent="even" ss:ID="evenfloat">' +
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'<ss:NumberFormat ss:Format="0.00" />' +
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'</ss:Style>' +
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'<ss:Style ss:ID="odd">' +
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'<ss:Interior ss:Pattern="Solid" ss:Color="#EEEEFF" />' +
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'</ss:Style>' +
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'<ss:Style ss:Parent="odd" ss:ID="odddate">' +
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'<ss:NumberFormat ss:Format="yyyy-mm-dd" />' +
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'</ss:Style>' +
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'<ss:Style ss:Parent="odd" ss:ID="oddint">' +
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'<ss:NumberFormat ss:Format="0" />' +
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'</ss:Style>' +
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'<ss:Style ss:Parent="odd" ss:ID="oddfloat">' +
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'<ss:NumberFormat ss:Format="0.00" />' +
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'</ss:Style>' +
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'</ss:Styles>' +
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worksheet.xml +
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'</ss:Workbook>';
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},
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createWorksheet: function (includeHidden) {
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// Calculate cell data types and extra class names which affect formatting
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var cellType = [];
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var cellTypeClass = [];
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var cm = this.columns;
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var totalWidthInPixels = 0;
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var colXml = '';
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var headerXml = '';
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var visibleColumnCountReduction = 0;
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var colCount = cm.length;
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var recordCount = this.store.getCount();
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for (var i = 0; i < colCount; i++) {
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var column = cm[i];
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if ((column.dataIndex != '')
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&& (includeHidden || !column.isHidden())) {
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var w = column.getWidth();
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totalWidthInPixels += w;
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if (column.text === "") {
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cellType.push("None");
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cellTypeClass.push("");
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++visibleColumnCountReduction;
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}
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else {
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colXml += '<ss:Column ss:AutoFitWidth="1" ss:Width="' + w + '" />';
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headerXml += '<ss:Cell ss:StyleID="headercell">' +
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'<ss:Data ss:Type="String">' + column.text + '</ss:Data>' +
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'<ss:NamedCell ss:Name="Print_Titles" /></ss:Cell>';
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var fldtype = 'string';
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if (recordCount > 0) {
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var model = this.store.getAt(0);
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var fields = model.fields;
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var field = null;
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for (key in fields.items) {
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if (fields.items[key].name == column.dataIndex) {
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field = fields.items[key];
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break;
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}
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}
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//var field = fields.items.indexOf(column.dataIndex);// fields.items[i];
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if (field != null)
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fldtype = field.type.type;
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}
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switch (fldtype) {
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case "int":
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cellType.push("Number");
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cellTypeClass.push("int");
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break;
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case "float":
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cellType.push("Number");
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cellTypeClass.push("float");
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break;
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case "bool":
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case "boolean":
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cellType.push("String");
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cellTypeClass.push("");
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break;
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case "date":
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cellType.push("DateTime");
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cellTypeClass.push("date");
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break;
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default:
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cellType.push("String");
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cellTypeClass.push("");
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break;
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}
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}
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}
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}
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var visibleColumnCount = cellType.length - visibleColumnCountReduction;
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var result = {
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height: 9000,
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width: Math.floor(totalWidthInPixels * 30) + 50
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};
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// Generate worksheet header details.
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var t = '<ss:Worksheet ss:Name="' + this.title + '">' +
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'<ss:Names>' +
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'<ss:NamedRange ss:Name="Print_Titles" ss:RefersTo="=\'' + this.title + '\'!R1:R2" />' +
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'</ss:Names>' +
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'<ss:Table x:FullRows="1" x:FullColumns="1"' +
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' ss:ExpandedColumnCount="' + (visibleColumnCount + 2) +
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'" ss:ExpandedRowCount="' + (this.store.getCount() + 2) + '">' +
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colXml +
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// '<ss:Row ss:Height="38">' +
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// '<ss:Cell ss:StyleID="title" ss:MergeAcross="' + (visibleColumnCount - 1) + '">' +
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// '<ss:Data xmlns:html="http://www.w3.org/TR/REC-html40" ss:Type="String">' +
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// '<html:B>Generated by ExtJS</html:B></ss:Data><ss:NamedCell ss:Name="Print_Titles" />' +
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// '</ss:Cell>' +
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// '</ss:Row>' +
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'<ss:Row ss:AutoFitHeight="1">' +
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headerXml +
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'</ss:Row>';
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// Generate the data rows from the data in the Store
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for (var i = 0, it = this.store.data.items, l = it.length; i < l; i++) {
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t += '<ss:Row>';
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var cellClass = (i & 1) ? 'odd' : 'even';
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r = it[i].data;
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var k = 0;
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for (var j = 0; j < colCount; j++) {
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var datacolumn = cm[j];
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if ((datacolumn.dataIndex != '')
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&& (includeHidden || !datacolumn.isHidden())) {
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var v = r[datacolumn.dataIndex];
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if (cellType[k] !== "None") {
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t += '<ss:Cell ss:StyleID="' + cellClass + cellTypeClass[k] + '"><ss:Data ss:Type="' + cellType[k] + '">';
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if (cellType[k] == 'DateTime') {
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if (v == null) {
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t += "";
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} else {
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var _s = "";
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_s = Ext.util.Format.date(v, "Y-m-d");
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t += _s;
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}
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} else {
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t += v;
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}
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t += '</ss:Data></ss:Cell>';
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}
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k++;
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}
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}
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t += '</ss:Row>';
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}
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result.xml = t + '</ss:Table>' +
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'<x:WorksheetOptions>' +
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'<x:PageSetup>' +
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'<x:Layout x:CenterHorizontal="1" x:Orientation="Landscape" />' +
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'<x:Footer x:Data="Page &P of &N" x:Margin="0.5" />' +
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'<x:PageMargins x:Top="0.5" x:Right="0.5" x:Left="0.5" x:Bottom="0.8" />' +
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'</x:PageSetup>' +
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'<x:FitToPage />' +
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'<x:Print>' +
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'<x:PrintErrors>Blank</x:PrintErrors>' +
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'<x:FitWidth>1</x:FitWidth>' +
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'<x:FitHeight>32767</x:FitHeight>' +
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'<x:ValidPrinterInfo />' +
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'<x:VerticalResolution>600</x:VerticalResolution>' +
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'</x:Print>' +
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'<x:Selected />' +
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'<x:DoNotDisplayGridlines />' +
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'<x:ProtectObjects>False</x:ProtectObjects>' +
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'<x:ProtectScenarios>False</x:ProtectScenarios>' +
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'</x:WorksheetOptions>' +
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'</ss:Worksheet>';
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return result;
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}
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});
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