183 lines
7.2 KiB
HTML
183 lines
7.2 KiB
HTML
<!doctype html>
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<html lang="en-us">
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<head>
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<meta charset="utf-8">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<title>bdftopcf font converter</title>
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<style>
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form label, form button {
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background-color: #7F9CCB;
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padding: 5px 10px;
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border-radius: 5px;
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border: 1px ridge black;
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font-size: 0.8rem;
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height: auto;
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}
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.emscripten { display: block; }
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textarea.emscripten { font-family: monospace; width: 80%; }
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div.emscripten_border { border: 1px solid black; }
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/* the canvas *must not* have any border or padding, or mouse coords will be wrong */
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canvas.emscripten { border: 0px none; background-color: black; }
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.spinner {
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height: 50px;
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width: 50px;
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margin: 0px auto;
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-webkit-animation: rotation .8s linear infinite;
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-moz-animation: rotation .8s linear infinite;
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-o-animation: rotation .8s linear infinite;
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animation: rotation 0.8s linear infinite;
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border-left: 10px solid rgb(0,150,240);
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border-right: 10px solid rgb(0,150,240);
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border-bottom: 10px solid rgb(0,150,240);
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border-top: 10px solid rgb(100,0,200);
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border-radius: 100%;
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background-color: rgb(200,100,250);
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}
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@-webkit-keyframes rotation {
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from {-webkit-transform: rotate(0deg);}
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to {-webkit-transform: rotate(360deg);}
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}
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@-moz-keyframes rotation {
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from {-moz-transform: rotate(0deg);}
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to {-moz-transform: rotate(360deg);}
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}
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@-o-keyframes rotation {
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from {-o-transform: rotate(0deg);}
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to {-o-transform: rotate(360deg);}
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}
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@keyframes rotation {
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from {transform: rotate(0deg);}
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to {transform: rotate(360deg);}
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}
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</style>
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</head>
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<body>
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Convert a font in BDF format to PCF format for use with CircuitPython. CircuitPython can load PCF files more quickly, and they are also somewhat smaller.
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<figure style="overflow:visible;" id="spinner"><div class="spinner"></div><center style="margin-top:0.5em"><strong>emscripten</strong></center></figure>
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<div class="emscripten" id="status">Downloading...</div>
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<div class="emscripten">
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<progress value="0" max="100" id="progress" hidden=1></progress>
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</div>
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<form method="POST" enctype="multipart/form-data">
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<label for="bdffont">Browse</label><input type="file" id="bdffont" name="bdffont" accept=".bdf" style="opacity:0"/>
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<br>
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<!-- <input type="submit" value="Convert" onSubmit="return convert_me()"/> -->
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</form>
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<br/>
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<div id="outputDiv"/>
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<textarea class="emscripten" id="output" rows="8" style="display:none"></textarea>
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<script type='text/javascript'>
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function downloadData(name, data) {
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var as_str = Array.from(data).map((c)=>String.fromCharCode(c)).join("")
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var datauri = "data:application/binary;base64," + btoa(as_str)
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var link = document.createElement("a");
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link.download = name;
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link.href = datauri;
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link.target = "blank";
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document.body.appendChild(link);
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link.click();
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document.body.removeChild(link);
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delete link;
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}
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document.querySelector('#bdffont').addEventListener('change', (event) => {
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var file = document.getElementById("bdffont");
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if (file.files.length) {
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var reader = new FileReader();
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reader.onload = function(e) {
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FS.writeFile("/input.bdf", e.target.result);
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// Module._font_convert("/input.bdf", "/output.pcf");
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var result = Module._font_convert();
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var ofn = file.value.replace(/.*[/\\]/, "").replace(/\.bdf$/i, "") + ".pcf"
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if(result != 0) {
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downloadData(ofn, FS.readFile("/output.pcf"));
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}
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}
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reader.readAsBinaryString(file.files[0]);
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}
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return false;
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});
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var statusElement = document.getElementById('status');
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var progressElement = document.getElementById('progress');
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var spinnerElement = document.getElementById('spinner');
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var outputElement = document.getElementById('output');
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var Module = {
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preRun: [],
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postRun: [],
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print: (function() {
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var element = document.getElementById('output');
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if (element) element.value = ''; // clear browser cache
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return function(text) {
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if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');
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// These replacements are necessary if you render to raw HTML
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//text = text.replace(/&/g, "&");
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//text = text.replace(/</g, "<");
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//text = text.replace(/>/g, ">");
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//text = text.replace('\n', '<br>', 'g');
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console.log(text);
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if (element) {
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element.style = ""
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element.value += text + "\n";
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element.scrollTop = element.scrollHeight; // focus on bottom
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}
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};
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})(),
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printErr: function(text) {
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if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');
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if (0) { // XXX disabled for safety typeof dump == 'function') {
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dump(text + '\n'); // fast, straight to the real console
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} else {
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outputElement.style = ""
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outputElement.value += text + "\n";
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outputElement.scrollTop = outputElement.scrollHeight; // focus on bottom
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console.error(text);
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}
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},
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setStatus: function(text) {
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if (!Module.setStatus.last) Module.setStatus.last = { time: Date.now(), text: '' };
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if (text === Module.setStatus.last.text) return;
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var m = text.match(/([^(]+)\((\d+(\.\d+)?)\/(\d+)\)/);
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var now = Date.now();
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if (m && now - Module.setStatus.last.time < 30) return; // if this is a progress update, skip it if too soon
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Module.setStatus.last.time = now;
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Module.setStatus.last.text = text;
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if (m) {
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text = m[1];
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progressElement.value = parseInt(m[2])*100;
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progressElement.max = parseInt(m[4])*100;
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progressElement.hidden = false;
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spinnerElement.hidden = false;
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} else {
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progressElement.value = null;
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progressElement.max = null;
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progressElement.hidden = true;
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if (!text) spinnerElement.hidden = true;
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}
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statusElement.innerHTML = text;
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},
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totalDependencies: 0,
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monitorRunDependencies: function(left) {
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this.totalDependencies = Math.max(this.totalDependencies, left);
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Module.setStatus(left ? 'Preparing... (' + (this.totalDependencies-left) + '/' + this.totalDependencies + ')' : 'All downloads complete.');
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}
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};
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Module.setStatus('Downloading...');
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window.onerror = function() {
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Module.setStatus('Exception thrown, see JavaScript console');
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spinnerElement.style.display = 'none';
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Module.setStatus = function(text) {
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if (text) Module.printErr('[post-exception status] ' + text);
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};
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};
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</script>
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{{{ SCRIPT }}}
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</body>
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</html>
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