2020-12-19 16:39:48 +00:00
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// Code39 barcode generator
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// see https://en.wikipedia.org/wiki/Code_39
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// IBM LTO Ultrium Cartridge Label Specification
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// http://www-01.ibm.com/support/docview.wss?uid=ssg1S7000429
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let code39_codes = {
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"1": ['B', 's', 'b', 'S', 'b', 's', 'b', 's', 'B'],
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"A": ['B', 's', 'b', 's', 'b', 'S', 'b', 's', 'B'],
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"K": ['B', 's', 'b', 's', 'b', 's', 'b', 'S', 'B'],
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"U": ['B', 'S', 'b', 's', 'b', 's', 'b', 's', 'B'],
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"2": ['b', 's', 'B', 'S', 'b', 's', 'b', 's', 'B'],
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"B": ['b', 's', 'B', 's', 'b', 'S', 'b', 's', 'B'],
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"L": ['b', 's', 'B', 's', 'b', 's', 'b', 'S', 'B'],
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"V": ['b', 'S', 'B', 's', 'b', 's', 'b', 's', 'B'],
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"3": ['B', 's', 'B', 'S', 'b', 's', 'b', 's', 'b'],
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"C": ['B', 's', 'B', 's', 'b', 'S', 'b', 's', 'b'],
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"M": ['B', 's', 'B', 's', 'b', 's', 'b', 'S', 'b'],
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"W": ['B', 'S', 'B', 's', 'b', 's', 'b', 's', 'b'],
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"4": ['b', 's', 'b', 'S', 'B', 's', 'b', 's', 'B'],
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"D": ['b', 's', 'b', 's', 'B', 'S', 'b', 's', 'B'],
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"N": ['b', 's', 'b', 's', 'B', 's', 'b', 'S', 'B'],
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"X": ['b', 'S', 'b', 's', 'B', 's', 'b', 's', 'B'],
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"5": ['B', 's', 'b', 'S', 'B', 's', 'b', 's', 'b'],
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"E": ['B', 's', 'b', 's', 'B', 'S', 'b', 's', 'b'],
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"O": ['B', 's', 'b', 's', 'B', 's', 'b', 'S', 'b'],
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"Y": ['B', 'S', 'b', 's', 'B', 's', 'b', 's', 'b'],
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"6": ['b', 's', 'B', 'S', 'B', 's', 'b', 's', 'b'],
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"F": ['b', 's', 'B', 's', 'B', 'S', 'b', 's', 'b'],
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"P": ['b', 's', 'B', 's', 'B', 's', 'b', 'S', 'b'],
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"Z": ['b', 'S', 'B', 's', 'B', 's', 'b', 's', 'b'],
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"7": ['b', 's', 'b', 'S', 'b', 's', 'B', 's', 'B'],
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"G": ['b', 's', 'b', 's', 'b', 'S', 'B', 's', 'B'],
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"Q": ['b', 's', 'b', 's', 'b', 's', 'B', 'S', 'B'],
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"-": ['b', 'S', 'b', 's', 'b', 's', 'B', 's', 'B'],
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"8": ['B', 's', 'b', 'S', 'b', 's', 'B', 's', 'b'],
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"H": ['B', 's', 'b', 's', 'b', 'S', 'B', 's', 'b'],
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"R": ['B', 's', 'b', 's', 'b', 's', 'B', 'S', 'b'],
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".": ['B', 'S', 'b', 's', 'b', 's', 'B', 's', 'b'],
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"9": ['b', 's', 'B', 'S', 'b', 's', 'B', 's', 'b'],
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"I": ['b', 's', 'B', 's', 'b', 'S', 'B', 's', 'b'],
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"S": ['b', 's', 'B', 's', 'b', 's', 'B', 'S', 'b'],
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" ": ['b', 'S', 'B', 's', 'b', 's', 'B', 's', 'b'],
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"0": ['b', 's', 'b', 'S', 'B', 's', 'B', 's', 'b'],
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"J": ['b', 's', 'b', 's', 'B', 'S', 'B', 's', 'b'],
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"T": ['b', 's', 'b', 's', 'B', 's', 'B', 'S', 'b'],
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2021-02-12 12:49:38 +00:00
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"*": ['b', 'S', 'b', 's', 'B', 's', 'B', 's', 'b'],
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2020-12-19 16:39:48 +00:00
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};
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let colors = [
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'#BB282E',
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'#FAE54A',
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'#9AC653',
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'#01A5E2',
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'#9EAAB6',
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'#D97E35',
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'#E27B99',
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'#67A945',
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'#F6B855',
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2021-02-12 12:49:38 +00:00
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'#705A81',
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2020-12-19 16:39:48 +00:00
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];
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2021-02-28 18:31:35 +00:00
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const lto_label_width = 70;
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const lto_label_height = 16.9;
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2020-12-19 16:39:48 +00:00
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function foreach_label(page_layout, callback) {
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let count = 0;
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let row = 0;
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let height = page_layout.margin_top;
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while ((height + page_layout.label_height) <= page_layout.page_height) {
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let column = 0;
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let width = page_layout.margin_left;
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while ((width + page_layout.label_width) <= page_layout.page_width) {
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callback(column, row, count, width, height);
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count += 1;
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column += 1;
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width += page_layout.label_width;
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width += page_layout.column_spacing;
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}
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row += 1;
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height += page_layout.label_height;
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height += page_layout.row_spacing;
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}
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}
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function compute_max_labels(page_layout) {
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let max_labels = 0;
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foreach_label(page_layout, function() { max_labels += 1; });
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return max_labels;
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}
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function svg_label(mode, label, label_type, pagex, pagey, label_borders) {
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let svg = "";
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if (label.length != 6) {
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throw "wrong label length";
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}
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if (label_type.length != 2) {
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throw "wrong label_type length";
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}
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let ratio = 2.75;
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let parts = 3*ratio + 6; // 3*wide + 6*small;
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let barcode_width = (lto_label_width/12)*10; // 10*code + 2margin
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let small = barcode_width/(parts*10 + 9);
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let code_width = small*parts;
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let wide = small*ratio;
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let xpos = pagex + code_width;
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let height = 12;
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if (mode === 'placeholder') {
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if (label_borders) {
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svg += `<rect class='unprintable' x='${pagex}' y='${pagey}' width='${lto_label_width}' height='${lto_label_height}' fill='none' style='stroke:black;stroke-width:0.1;'/>`;
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}
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return svg;
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}
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if (label_borders) {
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svg += `<rect x='${pagex}' y='${pagey}' width='${lto_label_width}' height='${lto_label_height}' fill='none' style='stroke:black;stroke-width:0.1;'/>`;
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}
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if (mode === "color" || mode == "frame") {
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let w = lto_label_width/8;
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let h = lto_label_height - height;
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for (var i = 0; i < 7; i++) {
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let textx = w/2 + pagex + i*w;
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let texty = pagey;
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let fill = "none";
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if (mode === "color" && (i < 6)) {
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let letter = label.charAt(i);
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if (letter >= '0' && letter <= '9') {
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fill = colors[parseInt(letter, 10)];
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}
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}
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svg += `<rect x='${textx}' y='${texty}' width='${w}' height='${h}' style='stroke:black;stroke-width:0.2;fill:${fill};'/>`;
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if (i == 6) {
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textx += 3;
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texty += 3.7;
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svg += `<text x='${textx}' y='${texty}' style='font-weight:bold;font-size:3px;font-family:sans-serif;'>${label_type}</text>`;
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} else {
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let letter = label.charAt(i);
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textx += 3.5;
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texty += 4;
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svg += `<text x='${textx}' y='${texty}' style='font-weight:bold;font-size:4px;font-family:sans-serif;'>${letter}</text>`;
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}
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}
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}
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let raw_label = `*${label}${label_type}*`;
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for (var i = 0; i < raw_label.length; i++) {
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let letter = raw_label.charAt(i);
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let code = code39_codes[letter];
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if (code === undefined) {
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throw `unable to encode letter '${letter}' with code39`;
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}
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if (mode === "simple") {
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let textx = xpos + code_width/2;
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let texty = pagey + 4;
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if (i > 0 && (i+1) < raw_label.length) {
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svg += `<text x='${textx}' y='${texty}' style='font-weight:bold;font-size:4px;font-family:sans-serif;'>${letter}</text>`;
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}
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}
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for (let c of code) {
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if (c === 's') {
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xpos += small;
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continue;
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}
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if (c === 'S') {
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xpos += wide;
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continue;
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}
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let w = c === 'B' ? wide : small;
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let ypos = pagey + lto_label_height - height;
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svg += `<rect x='${xpos}' y='${ypos}' width='${w}' height='${height}' style='fill:black'/>`;
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xpos = xpos + w;
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}
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xpos += small;
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}
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return svg;
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}
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function html_page_header() {
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let html = "<html5>";
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html += "<style>";
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/* no page margins */
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html += "@page{margin-left: 0px;margin-right: 0px;margin-top: 0px;margin-bottom: 0px;}";
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/* to hide things on printed page */
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2021-02-12 12:49:38 +00:00
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html += "@media print { .unprintable { visibility: hidden; } }";
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2020-12-19 16:39:48 +00:00
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html += "</style>";
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//html += "<body onload='window.print()'>";
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html += "<body style='background-color: white;'>";
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return html;
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}
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function svg_page_header(page_width, page_height) {
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let svg = "<svg version='1.1' xmlns='http://www.w3.org/2000/svg'";
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svg += ` width='${page_width}mm' height='${page_height}mm' viewBox='0 0 ${page_width} ${page_height}'>`;
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return svg;
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}
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function printBarcodePage() {
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let frame = document.getElementById("print_frame");
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let window = frame.contentWindow;
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window.print();
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}
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function generate_barcode_page(target_id, page_layout, label_list, calibration) {
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let svg = svg_page_header(page_layout.page_width, page_layout.page_height);
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let c = calibration;
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console.log(calibration);
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svg += "<g id='barcode_page'";
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if (c !== undefined) {
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svg += ` transform='scale(${c.scalex}, ${c.scaley}),translate(${c.offsetx}, ${c.offsety})'`;
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}
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svg += '>';
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foreach_label(page_layout, function(column, row, count, xpos, ypos) {
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if (count >= label_list.length) { return; }
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let item = label_list[count];
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svg += svg_label(item.mode, item.label, item.tape_type, xpos, ypos, page_layout.label_borders);
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});
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svg += "</g>";
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svg += "</svg>";
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let html = html_page_header();
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html += svg;
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html += "</body>";
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html += "</html>";
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let frame = document.getElementById(target_id);
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setupPrintFrame(frame, page_layout.page_width, page_layout.page_height);
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let fwindow = frame.contentWindow;
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fwindow.document.open();
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fwindow.document.write(html);
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fwindow.document.close();
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}
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function setupPrintFrame(frame, page_width, page_height) {
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let dpi = 98;
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let dpr = window.devicePixelRatio;
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if (dpr !== undefined) {
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dpi = dpi*dpr;
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}
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let ppmm = dpi/25.4;
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frame.width = page_width*ppmm;
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frame.height = page_height*ppmm;
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}
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function generate_calibration_page(target_id, page_layout, calibration) {
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let frame = document.getElementById(target_id);
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setupPrintFrame(frame, page_layout.page_width, page_layout.page_height);
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2021-02-12 12:49:38 +00:00
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let svg = svg_page_header(page_layout.page_width, page_layout.page_height);
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2020-12-19 16:39:48 +00:00
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svg += "<defs>";
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svg += "<marker id='endarrow' markerWidth='10' markerHeight='7' ";
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svg += "refX='10' refY='3.5' orient='auto'><polygon points='0 0, 10 3.5, 0 7' />";
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svg += "</marker>";
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svg += "<marker id='startarrow' markerWidth='10' markerHeight='7' ";
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svg += "refX='0' refY='3.5' orient='auto'><polygon points='10 0, 10 7, 0 3.5' />";
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svg += "</marker>";
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svg += "</defs>";
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svg += "<rect x='50' y='50' width='100' height='100' style='fill:none;stroke-width:0.05;stroke:rgb(0,0,0)'/>";
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let text_style = "style='font-weight:bold;font-size:4;font-family:sans-serif;'";
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svg += `<text x='10' y='99' ${text_style}>Sx = 50mm</text>`;
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svg += "<line x1='0' y1='100' x2='50' y2='100' stroke='#000' marker-end='url(#endarrow)' stroke-width='.25'/>";
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svg += `<text x='60' y='99' ${text_style}>Dx = 100mm</text>`;
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svg += "<line x1='50' y1='100' x2='150' y2='100' stroke='#000' marker-start='url(#startarrow)' marker-end='url(#endarrow)' stroke-width='.25'/>";
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svg += `<text x='142' y='10' ${text_style} writing-mode='tb'>Sy = 50mm</text>`;
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svg += "<line x1='140' y1='0' x2='140' y2='50' stroke='#000' marker-end='url(#endarrow)' stroke-width='.25'/>";
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svg += `<text x='142' y='60' ${text_style} writing-mode='tb'>Dy = 100mm</text>`;
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svg += "<line x1='140' y1='50' x2='140' y2='150' stroke='#000' marker-start='url(#startarrow)' marker-end='url(#endarrow)' stroke-width='.25'/>";
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let c = calibration;
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if (c !== undefined) {
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svg += `<rect x='50' y='50' width='100' height='100' style='fill:none;stroke-width:0.05;stroke:rgb(255,0,0)' `;
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svg += `transform='scale(${c.scalex}, ${c.scaley}),translate(${c.offsetx}, ${c.offsety})'/>`;
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}
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svg += "</svg>";
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let html = html_page_header();
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html += svg;
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html += "</body>";
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html += "</html>";
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let fwindow = frame.contentWindow;
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fwindow.document.open();
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fwindow.document.write(html);
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fwindow.document.close();
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}
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