/
index.html
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/
index.html
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<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title></title>
</head>
<body>
<h3>
<a href="https://github.com/hrhr49/tefcha">
Tefcha Demo
</a>
</h3>
themes:
<button id="default">default</button>
<button id="green">green</button>
<button id="blue">blue</button>
save:
<button id="save-png">PNG</button>
<button id="save-svg">SVG</button>
<div style="display: flex;">
<div style="display: flex; flex: row">
<div id="editor" style="height: 600px; width: 500px; resize: both;" onChange="update()" ></div>
</div>
<div>
<div id="flowchart" class="tefcha"></div>
<div>
<code>
<pre id="errMsg">
</pre>
</code>
</div>
<div id="errMsg" class="errMsg"></div>
</div>
</div>
<script src="https://unpkg.com/tefcha/umd/tefcha.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.4.12/ace.js" integrity="sha512-GZ1RIgZaSc8rnco/8CXfRdCpDxRCphenIiZ2ztLy3XQfCbQUSCuk8IudvNHxkRA3oUg6q0qejgN/qqyG1duv5Q==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<script>
var defaultSrc = `\
# This is a example.
# NOTE:
# The line starts with "#" is comment.
# "\\n" is newline.
Start\\nFizzBuzz!
i = 1
while i <= 100
if i % 15 == 0
print("FizzBuzz")
elif i % 3 == 0
print("Fizz")
elif i % 5 == 0
print("Buzz")
else
print(i)
i = i + 1
End
`;
var editor = ace.edit("editor");
editor.setTheme("ace/theme/monokai");
editor.setFontSize(14);
editor.getSession().setTabSize(2);
editor.setValue(defaultSrc, -1);
var text = document.getElementById('text');
var flowchart = document.getElementById('flowchart');
var errMsg = document.getElementById('errMsg');
var defaultConfig = {};
var greenConfig = {
text: {
attrs: {
'font-size': '14px',
'stroke': 'white',
'fill': 'white',
'fill-opacity': '100%',
'stroke-width': '0px',
},
},
label: {
attrs: {
'font-size': '10px',
'stroke': 'seagreen',
'fill': 'seagreen',
'fill-opacity': '100%',
},
},
path: {
attrs: {
'stroke': 'dimgray',
'stroke-width': '2px',
'fill-opacity': '0%',
},
},
rect: {
attrs: {
'stroke': 'darkcyan',
'stroke-width': '2px',
'fill': 'darkcyan',
'fill-opacity': '100%',
'rx': '3px',
'ry': '3px',
},
},
diamond: {
attrs: {
'stroke': 'seagreen',
'stroke-width': '2px',
'fill': 'seagreen',
'fill-opacity': '100%',
},
},
arrowHead: {
attrs: {
'stroke': 'dimgray',
'stroke-width': '2px',
'fill': 'dimgray',
'fill-opacity': '100%',
},
},
};
var blueConfig = {
text: {
attrs: {
'font-size': '14px',
'stroke': 'white',
'fill': 'white',
'fill-opacity': '100%',
'stroke-width': '0px',
},
},
label: {
attrs: {
'font-size': '10px',
'stroke': 'royalblue',
'fill': 'royalblue',
'fill-opacity': '100%',
},
},
path: {
attrs: {
'stroke': 'dimgray',
'stroke-width': '2px',
'fill-opacity': '0%',
},
},
rect: {
attrs: {
'stroke': 'steelblue',
'stroke-width': '2px',
'fill': 'steelblue',
'fill-opacity': '100%',
'rx': '3px',
'ry': '3px',
},
},
diamond: {
attrs: {
'stroke': 'royalblue',
'stroke-width': '2px',
'fill': 'royalblue',
'fill-opacity': '100%',
},
},
arrowHead: {
attrs: {
'stroke': 'dimgray',
'stroke-width': '2px',
'fill': 'dimgray',
'fill-opacity': '100%',
},
},
};
var config = defaultConfig;
var update = () => {
var src = editor.getSession().getValue();
flowchart.textContent = src;
try {
tefcha.initialize(config);
errMsg.textContent = '';
} catch (error) {
errMsg.textContent = error.message;
}
};
editor.getSession().on('change', function() {
update()
});
update();
document.getElementById('default').addEventListener('click', () => {
config = defaultConfig;
update();
});
document.getElementById('green').addEventListener('click', () => {
config = greenConfig;
update();
});
document.getElementById('blue').addEventListener('click', () => {
config = blueConfig;
update();
});
var savePNG = () => {
// https://qiita.com/skryoooo/items/a37455bef54321a6195a
var svg= document.getElementsByTagName('svg')[0];
var svgData = new XMLSerializer().serializeToString(svg);
var canvas = document.createElement("canvas");
canvas.width = svg.width.baseVal.value;
canvas.height = svg.height.baseVal.value;
var ctx = canvas.getContext("2d");
var image = new Image;
image.onload = function(){
ctx.drawImage( image, 0, 0 );
var a = document.createElement("a");
a.href = canvas.toDataURL("image/png");
a.setAttribute("download", "image.png");
a.dispatchEvent(new MouseEvent("click"));
}
image.src = "data:image/svg+xml;charset=utf-8;base64,"
+ btoa(unescape(encodeURIComponent(svgData)));
};
var saveSVG = () => {
// https://ameblo.jp/personwritep/entry-12495099049.html
var svg= document.getElementsByTagName('svg')[0];
var svgData = new XMLSerializer().serializeToString(svg);
let blob = new Blob([svgData], {type: "image/svg"});
let a = document.createElement("a");
a.href = URL.createObjectURL(blob);
document.body.appendChild(a); // for Firefox
a.download = "image.svg";
a.click();
document.body.removeChild(a); // for Firefox
URL.revokeObjectURL(a.href);
};
document.getElementById('save-png').addEventListener('click', () => {
savePNG();
});
document.getElementById('save-svg').addEventListener('click', () => {
saveSVG();
});
</script>
</body>
</html>