91 lines
2.2 KiB
Handlebars
91 lines
2.2 KiB
Handlebars
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<div class="container">
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{{> topBar}}
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<div class="row">
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{{> memeMaker}}
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</div>
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</div>
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<script>
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var canvas = document.getElementById('meme-canvas');
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ctx = canvas.getContext('2d');
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// set the size
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var img = document.getElementById('start-image');
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var canvasWidth = 400;
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var canvasHeight = 300;
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canvas.width = canvasWidth;
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canvas.height = canvasHeight;
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var topText = document.getElementById('top-text');
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var bottomText = document.getElementById('bottom-text');
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img.onload = function() {
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drawMeme()
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}
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topText.addEventListener('keydown', drawMeme);
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topText.addEventListener('keyup', drawMeme);
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topText.addEventListener('change', drawMeme);
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bottomText.addEventListener('keydown', drawMeme);
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bottomText.addEventListener('keyup', drawMeme);
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bottomText.addEventListener('change', drawMeme);
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function drawMeme() {
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ctx.clearRect(0, 0, canvasWidth, canvasHeight);
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ctx.drawImage(img, 0, 0, canvasWidth, canvasHeight);
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ctx.lineWidth = 4;
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ctx.font = '20pt sans-serif';
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ctx.strokeStyle = 'black';
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ctx.fillStyle = 'white';
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ctx.textAlign = 'center';
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ctx.textBaseline = 'top';
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var text1 = document.getElementById('top-text').value;
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text1 = text1.toUpperCase();
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x = canvasWidth / 2;
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y = 0;
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wrapText(ctx, text1, x, y, 300, 28, false);
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ctx.textBaseline = 'bottom';
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var text2 = document.getElementById('bottom-text').value;
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text2 = text2.toUpperCase();
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y = canvasHeight;
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wrapText(ctx, text2, x, y, 300, 28, true);
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}
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function wrapText(context, text, x, y, maxWidth, lineHeight, fromBottom) {
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var pushMethod = (fromBottom)?'unshift':'push';
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lineHeight = (fromBottom)?-lineHeight:lineHeight;
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var lines = [];
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var y = y;
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var line ='';
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var words = text.split(' ');
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for (var i = 0; i < words.length; i++) {
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var testLine = line + ' ' + words[i];
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var metrics = context.measureText(testLine);
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var testWidth = metrics.width;
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if (testWidth > maxWidth) {
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lines[pushMethod](line);
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line = words[i] + ' ';
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} else {
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line = testLine;
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}
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}
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lines[pushMethod](line);
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for (var k in lines ) {
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context.strokeText(lines[k], x, y + lineHeight * k);
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context.fillText(lines[k], x, y + lineHeight * k);
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}
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}
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</script>
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