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Support wawoff2 #14

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18a2e97
Upgrade opentype.js to latest version
Sep 25, 2024
d2e84de
Support wawoff2
Sep 26, 2024
e5d20f2
Create soft link of index.html
Sep 26, 2024
0793a7b
Use html to load decompress_binding.js
Sep 27, 2024
102fa74
Add button to fetch font file
Sep 26, 2024
604f93d
Add button for search unicode
Sep 27, 2024
c6c7bd8
Do not pop error box when fetch fail
Sep 30, 2024
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1 change: 1 addition & 0 deletions public/index.html
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
../views/index.html
92 changes: 67 additions & 25 deletions public/js/index.js
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Original file line number Diff line number Diff line change
@@ -1,7 +1,6 @@
// Code from
// http://nodebox.github.io/opentype.js/

var fileButton, fontFamily;
var pageSelected, font, fontScale, fontSize, fontBaseline, glyphScale, glyphSize, glyphBaseline;

var cellCount = 200,
Expand All @@ -23,19 +22,28 @@ function cellSelect(event) {
}
}

function onSearchUnicode(e) {
if (!font) return;
// get the index by unicode, e.target.value
var inputValue = e.target.value.trim().toLowerCase();
for (var i = 0; i < font.numGlyphs; i++) {
var unicode = font.glyphs.glyphs[i].unicode;
if (unicode !== undefined && inputValue == unicode.toString(16)) {
displayGlyph(i);
displayGlyphData(i);
break;
}
}
}

$(document).ready(function() {
fontFamily = document.getElementById('font-family');
fileButton = document.getElementById('file');
var fontUrl = document.getElementById("font-url");
fontUrl.addEventListener('input', onFetchFile);
var fileButton = document.getElementById('file');
fileButton.addEventListener('change', onReadFile, false);
var fontFileName = 'fonts/arialbd.ttf';
opentype.load(fontFileName, function(err, font) {
var amount, glyph, ctx, x, y, fontSize;
if (err) {
showErrorMessage(err.toString());
return;
}
onFontLoaded(font);
});
var searchButton = document.getElementById('search-unicode');
searchButton.addEventListener('input', onSearchUnicode);
fetchFile('fonts/arialbd.ttf');
prepareGlyphList();

$(".nicescroll-left").niceScroll({
Expand Down Expand Up @@ -150,7 +158,7 @@ function renderGlyphItem(canvas, glyphIndex) {
ctx.fillStyle = '#AAA';
ctx.font = '9px "Open Sans"';
ctx.fillText(glyphIndex, 2, cellHeight - 2);
var glyph = font.glyphs[glyphIndex],
var glyph = font.glyphs.glyphs[glyphIndex],
glyphWidth = glyph.advanceWidth * fontScale,
xmin = (cellWidth - glyphWidth) / 2,
xmax = (cellWidth + glyphWidth) / 2,
Expand Down Expand Up @@ -209,20 +217,33 @@ function initGlyphDisplay() {
hline('Descender', font.tables.os2.sTypoDescender);
}

function onFetchFile(e) {
fetchFile(e.target.value);
}

function fetchFile(filename) {
console.log("fetch file: " + filename);
if (filename.trim().length === 0) return;
fetch(filename)
.then(res => {
if (res.status !== 200) {
throw new Error("Network error " + res.status);
}
return res.arrayBuffer()
})
.then(data => loadFont(data))
.catch(err => {
console.log(err)
});
}

function onReadFile(e) {
var file = e.target.files[0];
console.log("read file: " + file.name);
var reader = new FileReader();

reader.onload = function(e) {
try {
font = opentype.parse(e.target.result);
// fontFamily.innerHTML = font.familyName || this.files[0].name.replace(/\.[^/.]+$/, "");
showErrorMessage('');
onFontLoaded(font);
} catch (err) {
showErrorMessage(err.toString());
throw (err);
}
loadFont(e.target.result);
};
reader.onerror = function(err) {
showErrorMessage(err.toString());
Expand All @@ -231,6 +252,27 @@ function onReadFile(e) {
reader.readAsArrayBuffer(file);
}

function loadFont(buffer) {
try {
if (window.Module.decompress === undefined) {
font = opentype.parse(buffer);
} else {
var decompressResult = window.Module.decompress(buffer);
if (!decompressResult) {
// decompress failed, use opentype to parse the file content directly.
font = opentype.parse(buffer);
} else {
// use opentype to parse decompress result.
font = opentype.parse(decompressResult);
}
}
onFontLoaded(font);
} catch (err) {
console.log(err)
showErrorMessage(err.toString());
}
}

function displayGlyphData(glyphIndex) {
var container = document.getElementById('glyph-data');
var holdtext = document.getElementById('copy-char');
Expand All @@ -239,7 +281,7 @@ function displayGlyphData(glyphIndex) {
container.innerHTML = '';
return;
}
var glyph = font.glyphs[glyphIndex],
var glyph = font.glyphs.glyphs[glyphIndex],
html;
html = '<div><dt>name</dt><dd>' + glyph.name + '</dd></div>';

Expand Down Expand Up @@ -289,7 +331,7 @@ function displayGlyph(glyphIndex) {

if (glyphIndex < 0) return;

var glyph = font.glyphs[glyphIndex],
var glyph = font.glyphs.glyphs[glyphIndex],
glyphWidth = glyph.advanceWidth * glyphScale,
xmin = (canvas.width / window.devicePixelRatio - glyphWidth) / 2,
xmax = (canvas.width / window.devicePixelRatio + glyphWidth) / 2,
Expand Down Expand Up @@ -331,7 +373,7 @@ function drawPoints(glyph, ctx, x, y, fontSize) {
x = x !== undefined ? x : 0;
y = y !== undefined ? y : 0;
fontSize = fontSize !== undefined ? fontSize : 24;
scale = 1 / glyph.font.unitsPerEm * fontSize;
scale = 1 / font.unitsPerEm * fontSize;

blueCircles = [];
redCircles = [];
Expand Down
13 changes: 12 additions & 1 deletion views/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,8 @@
<link href='css/index.css' rel='stylesheet' type='text/css'/>
<script src="js/jquery-2.1.3.min.js" type="text/javascript"></script>
<script src="js/jquery.nicescroll.min.js" type="text/javascript"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/opentype.js/0.4.4/opentype.min.js"></script>
<script src="https://opentype.js.org/dist/opentype.js"></script>

@jtbuaa jtbuaa Sep 26, 2024

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tested with opentype 1.3.4. should add comment for the version?

<script src="https://unpkg.com/wawoff2@2.0.1/build/decompress_binding.js" type="text/javascript"></script>
<script src="js/index.js" type="text/javascript"></script>
</head>
<body>
Expand All @@ -35,6 +36,16 @@
<div style="position:fixed;left:200px;width:475px;top:0;bottom:0;background:#1D242E;padding:20px;">
<div style="position:absolute;top:20px;left:0;right:0;bottom:0;z-index:2;">
<div class="nicescroll-center" style="overflow:auto;height:100%;overflow-x:hidden;padding:20px;padding-top:0;">
<div style="height:40px;width:100%;border-radius:4px;">
or input font url
<input id="font-url" type="text" placeholder="input url of font file"/>
</div>

<div style="height:40px;width:100%;border-radius:4px;">
search unicodes
<input id="search-unicode" type="text" placeholder="input unicode"/>
</div>

<div style="font-size: 25px;margin-top:5px;color:#5B6971;font-weight: 100;letter-spacing:1px;text-align:left;margin-bottom:15px;">
Font
</div>
Expand Down