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Fabric.JS and Fabric brushes - Can't add to lower canvas #1

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suryapolnati opened this issue Apr 18, 2022 · 1 comment
Open

Fabric.JS and Fabric brushes - Can't add to lower canvas #1

suryapolnati opened this issue Apr 18, 2022 · 1 comment

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@suryapolnati
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Hi,
I have integrated fabric brushes in my project and i am working with Crayon brush and is working normally but, when i try to select pencil brush from fabric.js, crayon brush is clearing from canvas.

Help is greatly appreciated.

Thanks
@av01d
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av01d commented Apr 19, 2022

I cannot reproduce your error. Here's code that works:

<!doctype html>
<html>
<head>
<title>Fabric Brushes Demo</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/521/fabric.min.js"></script>
<script src="dist/fabric.brushes.js"></script>
<style>

body {
   background-color: #fff;
   color: #000; 
   font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
   font-size: 16px;
}

.canvas-container {
   background-image: url(data:image/gif;base64,R0lGODlhCgAKAIAAAOLi4v///yH5BAAHAP8ALAAAAAAKAAoAAAIRhB2ZhxoM3GMSykqd1VltzxQAOw==);
   outline:  1px solid #ccc;
}

</style>
</head>
<body>

<div class="canvas-wrap">
   <canvas id="test-canvas" width="800" height="600"></canvas>
</div>
<button id="pencilBtn">Pencil brush</button>
<button id="crayonBtn">Crayon brush</button>
<button id="stopBtn">Stop drawing</button>

<script>

const fabricCanvas = new fabric.Canvas('test-canvas');

document.getElementById('pencilBtn').onclick = () => {
   fabricCanvas.isDrawingMode = true;
   fabricCanvas.freeDrawingBrush = new fabric['PencilBrush'](fabricCanvas, {});
}

document.getElementById('crayonBtn').onclick = () => {
   fabricCanvas.isDrawingMode = true;
   fabricCanvas.freeDrawingBrush = new fabric['CrayonBrush'](fabricCanvas, {color:'red'});
}

document.getElementById('stopBtn').onclick = () => {
   fabricCanvas.isDrawingMode = false;
}

</script>
</body>
</html>

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@av01d @suryapolnati