forked from sheetjs/sheetjs
91 lines
2.7 KiB
JavaScript
91 lines
2.7 KiB
JavaScript
/* [MS-XLS] 2.4.326 TODO: payload is a zip file */
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function parse_Theme(blob, length, opts) {
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var end = blob.l + length;
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var dwThemeVersion = blob.read_shift(4);
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if(dwThemeVersion === 124226) return;
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if(!opts.cellStyles || !jszip) { blob.l = end; return; }
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var data = blob.slice(blob.l);
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blob.l = end;
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var zip; try { zip = new jszip(data); } catch(e) { return; }
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var themeXML = getzipstr(zip, "theme/theme/theme1.xml", true);
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if(!themeXML) return;
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return parse_theme_xml(themeXML, opts);
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}
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/* 2.5.49 */
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function parse_ColorTheme(blob/*::, length*/) { return blob.read_shift(4); }
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/* 2.5.155 */
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function parse_FullColorExt(blob/*::, length*/) {
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var o = {};
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o.xclrType = blob.read_shift(2);
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o.nTintShade = blob.read_shift(2);
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switch(o.xclrType) {
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case 0: blob.l += 4; break;
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case 1: o.xclrValue = parse_IcvXF(blob, 4); break;
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case 2: o.xclrValue = parse_LongRGBA(blob, 4); break;
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case 3: o.xclrValue = parse_ColorTheme(blob, 4); break;
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case 4: blob.l += 4; break;
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}
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blob.l += 8;
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return o;
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}
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/* 2.5.164 TODO: read 7 bits*/
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function parse_IcvXF(blob, length) {
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return parsenoop(blob, length);
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}
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/* 2.5.280 */
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function parse_XFExtGradient(blob, length) {
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return parsenoop(blob, length);
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}
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/* 2.5.108 */
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function parse_ExtProp(blob/*::, length*/)/*:Array<any>*/ {
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var extType = blob.read_shift(2);
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var cb = blob.read_shift(2);
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var o = [extType];
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switch(extType) {
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case 0x04: case 0x05: case 0x07: case 0x08:
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case 0x09: case 0x0A: case 0x0B: case 0x0D:
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o[1] = parse_FullColorExt(blob, cb); break;
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case 0x06: o[1] = parse_XFExtGradient(blob, cb); break;
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case 0x0E: case 0x0F: o[1] = blob.read_shift(cb === 5 ? 1 : 2); break;
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default: throw new Error("Unrecognized ExtProp type: " + extType + " " + cb);
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}
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return o;
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}
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/* 2.4.355 */
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function parse_XFExt(blob, length) {
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var end = blob.l + length;
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blob.l += 2;
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var ixfe = blob.read_shift(2);
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blob.l += 2;
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var cexts = blob.read_shift(2);
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var ext/*:AOA*/ = [];
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while(cexts-- > 0) ext.push(parse_ExtProp(blob, end-blob.l));
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return {ixfe:ixfe, ext:ext};
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}
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/* xf is an XF, see parse_XFExt for xfext */
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function update_xfext(xf, xfext) {
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xfext.forEach(function(xfe) {
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switch(xfe[0]) { /* 2.5.108 extPropData */
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case 0x04: break; /* foreground color */
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case 0x05: break; /* background color */
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case 0x06: break; /* gradient fill */
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case 0x07: break; /* top cell border color */
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case 0x08: break; /* bottom cell border color */
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case 0x09: break; /* left cell border color */
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case 0x0a: break; /* right cell border color */
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case 0x0b: break; /* diagonal cell border color */
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case 0x0d: break; /* text color */
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case 0x0e: break; /* font scheme */
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case 0x0f: break; /* indentation level */
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}
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});
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}
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