forked from sheetjs/sheetjs
SheetJS
a3d9c4d9ac
- basic style + theme parsing, option .cellStyles (h/t @eladxxx) - more XLSB writing stubs - correct resolution of .xml/.bin files - sheet_to_json improvements from js-xls o opts.header = 1 for array of arrays o opts.header = 'A' for spreadsheet column labels o custom opts.header array for custom labels o opts.range = n starts from row n o opts.range = range restricts writer to work within the specified range - Makefile adapted to work with cygwin on windows
186 lines
13 KiB
JavaScript
186 lines
13 KiB
JavaScript
RELS.THEME = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/theme";
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/* Various RGB/HSL utility functions - might want to put these elsewhere. */
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/* From http://www.javascripter.net/faq/hextorgb.htm, usage: var X = hexToX('FFFFFF') */
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function cutHex(h) {return (h.charAt(0)=="#") ? h.substring(1,7):h}
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function hexToR(h) {return parseInt((cutHex(h)).substring(0,2),16)}
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function hexToG(h) {return parseInt((cutHex(h)).substring(2,4),16)}
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function hexToB(h) {return parseInt((cutHex(h)).substring(4,6),16)}
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/* From http://www.javascripter.net/faq/rgbtohex.htm, usage: var RGB = rgbToHex(R, G, B) */
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function toHex(n) {
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n = parseInt(n,10);
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if (isNaN(n)) return "00";
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n = Math.max(0,Math.min(n,255));
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return "0123456789ABCDEF".charAt((n-n%16)/16)
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+ "0123456789ABCDEF".charAt(n%16);
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}
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function rgbToHex(R,G,B) {return toHex(R)+toHex(G)+toHex(B)}
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/* From the specification. */
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var HLSMAX = 255;
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/* From https://gist.github.com/mjackson/5311256 via http://stackoverflow.com/a/9493060 */
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/**
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* Converts an RGB color value to HSL. Conversion formula
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* adapted from http://en.wikipedia.org/wiki/HSL_color_space.
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* Assumes r, g, and b are contained in the set [0, 255] and
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* returns h, s, and l in the set [0, 1].
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*
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* @param Number r The red color value
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* @param Number g The green color value
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* @param Number b The blue color value
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* @return Array The HSL representation
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*/
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function rgbToHsl(r, g, b){
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r /= 255, g /= 255, b /= 255;
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var max = Math.max(r, g, b), min = Math.min(r, g, b);
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var h, s, l = (max + min) / 2;
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if(max == min){
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h = s = 0; // achromatic
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}else{
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var d = max - min;
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s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
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switch(max){
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case r: h = (g - b) / d + (g < b ? 6 : 0); break;
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case g: h = (b - r) / d + 2; break;
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case b: h = (r - g) / d + 4; break;
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}
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h /= 6;
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}
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return [h, s, l];
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}
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/**
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* Converts an HSL color value to RGB. Conversion formula
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* adapted from http://en.wikipedia.org/wiki/HSL_color_space.
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* Assumes h, s, and l are contained in the set [0, 1] and
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* returns r, g, and b in the set [0, 255].
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*
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* @param Number h The hue
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* @param Number s The saturation
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* @param Number l The lightness
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* @return Array The RGB representation
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*/
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function hslToRgb(h, s, l){
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var r, g, b;
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if(s == 0){
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r = g = b = l; // achromatic
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}else{
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function hue2rgb(p, q, t){
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if(t < 0) t += 1;
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if(t > 1) t -= 1;
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if(t < 1/6) return p + (q - p) * 6 * t;
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if(t < 1/2) return q;
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if(t < 2/3) return p + (q - p) * (2/3 - t) * 6;
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return p;
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}
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var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
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var p = 2 * l - q;
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r = hue2rgb(p, q, h + 1/3);
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g = hue2rgb(p, q, h);
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b = hue2rgb(p, q, h - 1/3);
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}
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return [Math.round(r * 255), Math.round(g * 255), Math.round(b * 255)];
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}
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/* Utility function to apply tint to an RGB color. */
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function rgb_tint(rgb, tint) {
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var r = hexToR(rgb),
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g = hexToG(rgb),
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b = hexToB(rgb),
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hsl = rgbToHsl(r, g, b);
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/* Apply tint as described in pages 1757-1758 of the ECMA Office Open XML specification. */
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/* NOTE: This is totally messed up... see http://social.msdn.microsoft.com/Forums/en-US/e9d8c136-6d62-4098-9b1b-dac786149f43/excel-color-tint-algorithm-incorrect */
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if (tint < 0) {
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hsl[2] = hsl[2] * (1.0 + tint);
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} else if (tint > 0) {
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hsl[2] = hsl[2] * (1.0 + tint);
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// XXX This doesn't work...
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//hsl[2] = hsl[2] * (1.0 - tint) + (HLSMAX - HLSMAX * (1.0 - tint));
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}
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rgb = hslToRgb(hsl[0], hsl[1], hsl[2]);
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return rgbToHex(rgb[0], rgb[1], rgb[2]);
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}
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function parse_clrScheme(t, opts) {
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themes.themeElements.clrScheme = [];
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var color = {};
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t[0].match(/<[^>]*>/g).forEach(function(x) {
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var y = parsexmltag(x);
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switch(y[0]) {
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case '<a:clrScheme': case '</a:clrScheme>': break;
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/* 20.1.2.3.32 srgbClr CT_SRgbColor */
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case '<a:srgbClr': color.rgb = y.val; break;
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/* 20.1.2.3.33 sysClr CT_SystemColor */
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case '<a:sysClr': color.rgb = y.lastClr; break;
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/* 20.1.4.1.9 dk1 (Dark 1) */
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case '<a:dk1>':
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case '</a:dk1>':
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/* 20.1.4.1.10 dk2 (Dark 2) */
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case '<a:dk2>':
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case '</a:dk2>':
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/* 20.1.4.1.22 lt1 (Light 1) */
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case '<a:lt1>':
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case '</a:lt1>':
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/* 20.1.4.1.23 lt2 (Light 2) */
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case '<a:lt2>':
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case '</a:lt2>':
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/* 20.1.4.1.1 accent1 (Accent 1) */
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case '<a:accent1>':
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case '</a:accent1>':
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/* 20.1.4.1.2 accent2 (Accent 2) */
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case '<a:accent2>':
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case '</a:accent2>':
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/* 20.1.4.1.3 accent3 (Accent 3) */
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case '<a:accent3>':
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case '</a:accent3>':
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/* 20.1.4.1.4 accent4 (Accent 4) */
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case '<a:accent4>':
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case '</a:accent4>':
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/* 20.1.4.1.5 accent5 (Accent 5) */
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case '<a:accent5>':
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case '</a:accent5>':
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/* 20.1.4.1.6 accent6 (Accent 6) */
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case '<a:accent6>':
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case '</a:accent6>':
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/* 20.1.4.1.19 hlink (Hyperlink) */
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case '<a:hlink>':
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case '</a:hlink>':
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/* 20.1.4.1.15 folHlink (Followed Hyperlink) */
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case '<a:folHlink>':
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case '</a:folHlink>':
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if (y[0][1] === '/') {
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themes.themeElements.clrScheme.push(color);
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color = {};
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} else {
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color.name = y[0].substring(3, y[0].length - 1);
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}
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break;
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default: if(opts.WTF) throw 'unrecognized ' + y[0] + ' in clrScheme';
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}
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});
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}
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/* 14.2.7 Theme Part */
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function parse_theme_xml(data, opts) {
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themes.themeElements = {};
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var t;
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/* clrScheme */
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if((t=data.match(/<a:clrScheme([^>]*)>.*<\/a:clrScheme>/))) parse_clrScheme(t, opts);
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return themes;
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}
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function write_theme() { return '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>\n<a:theme xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" name="Office Theme"><a:themeElements><a:clrScheme name="Office"><a:dk1><a:sysClr val="windowText" lastClr="000000"/></a:dk1><a:lt1><a:sysClr val="window" lastClr="FFFFFF"/></a:lt1><a:dk2><a:srgbClr val="1F497D"/></a:dk2><a:lt2><a:srgbClr val="EEECE1"/></a:lt2><a:accent1><a:srgbClr val="4F81BD"/></a:accent1><a:accent2><a:srgbClr val="C0504D"/></a:accent2><a:accent3><a:srgbClr val="9BBB59"/></a:accent3><a:accent4><a:srgbClr val="8064A2"/></a:accent4><a:accent5><a:srgbClr val="4BACC6"/></a:accent5><a:accent6><a:srgbClr val="F79646"/></a:accent6><a:hlink><a:srgbClr val="0000FF"/></a:hlink><a:folHlink><a:srgbClr val="800080"/></a:folHlink></a:clrScheme><a:fontScheme name="Office"><a:majorFont><a:latin typeface="Cambria"/><a:ea typeface=""/><a:cs typeface=""/><a:font script="Jpan" typeface="MS Pゴシック"/><a:font script="Hang" typeface="맑은 고딕"/><a:font script="Hans" typeface="宋体"/><a:font script="Hant" typeface="新細明體"/><a:font script="Arab" typeface="Times New Roman"/><a:font script="Hebr" typeface="Times New Roman"/><a:font script="Thai" typeface="Tahoma"/><a:font script="Ethi" typeface="Nyala"/><a:font script="Beng" typeface="Vrinda"/><a:font script="Gujr" typeface="Shruti"/><a:font script="Khmr" typeface="MoolBoran"/><a:font script="Knda" typeface="Tunga"/><a:font script="Guru" typeface="Raavi"/><a:font script="Cans" typeface="Euphemia"/><a:font script="Cher" typeface="Plantagenet Cherokee"/><a:font script="Yiii" typeface="Microsoft Yi Baiti"/><a:font script="Tibt" typeface="Microsoft Himalaya"/><a:font script="Thaa" typeface="MV Boli"/><a:font script="Deva" typeface="Mangal"/><a:font script="Telu" typeface="Gautami"/><a:font script="Taml" typeface="Latha"/><a:font script="Syrc" typeface="Estrangelo Edessa"/><a:font script="Orya" typeface="Kalinga"/><a:font script="Mlym" typeface="Kartika"/><a:font script="Laoo" typeface="DokChampa"/><a:font script="Sinh" typeface="Iskoola Pota"/><a:font script="Mong" typeface="Mongolian Baiti"/><a:font script="Viet" typeface="Times New Roman"/><a:font script="Uigh" typeface="Microsoft Uighur"/><a:font script="Geor" typeface="Sylfaen"/></a:majorFont><a:minorFont><a:latin typeface="Calibri"/><a:ea typeface=""/><a:cs typeface=""/><a:font script="Jpan" typeface="MS Pゴシック"/><a:font script="Hang" typeface="맑은 고딕"/><a:font script="Hans" typeface="宋体"/><a:font script="Hant" typeface="新細明體"/><a:font script="Arab" typeface="Arial"/><a:font script="Hebr" typeface="Arial"/><a:font script="Thai" typeface="Tahoma"/><a:font script="Ethi" typeface="Nyala"/><a:font script="Beng" typeface="Vrinda"/><a:font script="Gujr" typeface="Shruti"/><a:font script="Khmr" typeface="DaunPenh"/><a:font script="Knda" typeface="Tunga"/><a:font script="Guru" typeface="Raavi"/><a:font script="Cans" typeface="Euphemia"/><a:font script="Cher" typeface="Plantagenet Cherokee"/><a:font script="Yiii" typeface="Microsoft Yi Baiti"/><a:font script="Tibt" typeface="Microsoft Himalaya"/><a:font script="Thaa" typeface="MV Boli"/><a:font script="Deva" typeface="Mangal"/><a:font script="Telu" typeface="Gautami"/><a:font script="Taml" typeface="Latha"/><a:font script="Syrc" typeface="Estrangelo Edessa"/><a:font script="Orya" typeface="Kalinga"/><a:font script="Mlym" typeface="Kartika"/><a:font script="Laoo" typeface="DokChampa"/><a:font script="Sinh" typeface="Iskoola Pota"/><a:font script="Mong" typeface="Mongolian Baiti"/><a:font script="Viet" typeface="Arial"/><a:font script="Uigh" typeface="Microsoft Uighur"/><a:font script="Geor" typeface="Sylfaen"/></a:minorFont></a:fontScheme><a:fmtScheme name="Office"><a:fillStyleLst><a:solidFill><a:schemeClr val="phClr"/></a:solidFill><a:gradFill rotWithShape="1"><a:gsLst><a:gs pos="0"><a:schemeClr val="phClr"><a:tint val="50000"/><a:satMod val="300000"/></a:schemeClr></a:gs><a:gs pos="35000"><a:schemeClr val="phClr"><a:tint val="37000"/><a:satMod val="300000"/></a:schemeClr></a:gs><a:gs pos="100000"><a:schemeClr val="phClr"><a:tint val="15000"/><a:satMod val="350000"/></a:schemeClr></a:gs></a:gsLst><a:lin ang="16200000" scaled="1"/></a:gradFill><a:gradFill rotWithShape="1"><a:gsLst><a:gs pos="0"><a:schemeClr val="phClr"><a:tint val="100000"/><a:shade val="100000"/><a:satMod val="130000"/></a:schemeClr></a:gs><a:gs pos="100000"><a:schemeClr val="phClr"><a:tint val="50000"/><a:shade val="100000"/><a:satMod val="350000"/></a:schemeClr></a:gs></a:gsLst><a:lin ang="16200000" scaled="0"/></a:gradFill></a:fillStyleLst><a:lnStyleLst><a:ln w="9525" cap="flat" cmpd="sng" algn="ctr"><a:solidFill><a:schemeClr val="phClr"><a:shade val="95000"/><a:satMod val="105000"/></a:schemeClr></a:solidFill><a:prstDash val="solid"/></a:ln><a:ln w="25400" cap="flat" cmpd="sng" algn="ctr"><a:solidFill><a:schemeClr val="phClr"/></a:solidFill><a:prstDash val="solid"/></a:ln><a:ln w="38100" cap="flat" cmpd="sng" algn="ctr"><a:solidFill><a:schemeClr val="phClr"/></a:solidFill><a:prstDash val="solid"/></a:ln></a:lnStyleLst><a:effectStyleLst><a:effectStyle><a:effectLst><a:outerShdw blurRad="40000" dist="20000" dir="5400000" rotWithShape="0"><a:srgbClr val="000000"><a:alpha val="38000"/></a:srgbClr></a:outerShdw></a:effectLst></a:effectStyle><a:effectStyle><a:effectLst><a:outerShdw blurRad="40000" dist="23000" dir="5400000" rotWithShape="0"><a:srgbClr val="000000"><a:alpha val="35000"/></a:srgbClr></a:outerShdw></a:effectLst></a:effectStyle><a:effectStyle><a:effectLst><a:outerShdw blurRad="40000" dist="23000" dir="5400000" rotWithShape="0"><a:srgbClr val="000000"><a:alpha val="35000"/></a:srgbClr></a:outerShdw></a:effectLst><a:scene3d><a:camera prst="orthographicFront"><a:rot lat="0" lon="0" rev="0"/></a:camera><a:lightRig rig="threePt" dir="t"><a:rot lat="0" lon="0" rev="1200000"/></a:lightRig></a:scene3d><a:sp3d><a:bevelT w="63500" h="25400"/></a:sp3d></a:effectStyle></a:effectStyleLst><a:bgFillStyleLst><a:solidFill><a:schemeClr val="phClr"/></a:solidFill><a:gradFill rotWithShape="1"><a:gsLst><a:gs pos="0"><a:schemeClr val="phClr"><a:tint val="40000"/><a:satMod val="350000"/></a:schemeClr></a:gs><a:gs pos="40000"><a:schemeClr val="phClr"><a:tint val="45000"/><a:shade val="99000"/><a:satMod val="350000"/></a:schemeClr></a:gs><a:gs pos="100000"><a:schemeClr val="phClr"><a:shade val="20000"/><a:satMod val="255000"/></a:schemeClr></a:gs></a:gsLst><a:path path="circle"><a:fillToRect l="50000" t="-80000" r="50000" b="180000"/></a:path></a:gradFill><a:gradFill rotWithShape="1"><a:gsLst><a:gs pos="0"><a:schemeClr val="phClr"><a:tint val="80000"/><a:satMod val="300000"/></a:schemeClr></a:gs><a:gs pos="100000"><a:schemeClr val="phClr"><a:shade val="30000"/><a:satMod val="200000"/></a:schemeClr></a:gs></a:gsLst><a:path path="circle"><a:fillToRect l="50000" t="50000" r="50000" b="50000"/></a:path></a:gradFill></a:bgFillStyleLst></a:fmtScheme></a:themeElements><a:objectDefaults><a:spDef><a:spPr/><a:bodyPr/><a:lstStyle/><a:style><a:lnRef idx="1"><a:schemeClr val="accent1"/></a:lnRef><a:fillRef idx="3"><a:schemeClr val="accent1"/></a:fillRef><a:effectRef idx="2"><a:schemeClr val="accent1"/></a:effectRef><a:fontRef idx="minor"><a:schemeClr val="lt1"/></a:fontRef></a:style></a:spDef><a:lnDef><a:spPr/><a:bodyPr/><a:lstStyle/><a:style><a:lnRef idx="2"><a:schemeClr val="accent1"/></a:lnRef><a:fillRef idx="0"><a:schemeClr val="accent1"/></a:fillRef><a:effectRef idx="1"><a:schemeClr val="accent1"/></a:effectRef><a:fontRef idx="minor"><a:schemeClr val="tx1"/></a:fontRef></a:style></a:lnDef></a:objectDefaults><a:extraClrSchemeLst/></a:theme>'; }
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