1
I’m making a site where when clicking on a radio button, the value of it (an id of an sql variable) will open next to it in a canvas, so you create an image. My idea is to use Konva’s Drag and Drop Canvas:
<script>
var width = window.innerWidth;
var height = window.innerHeight;
function drawImage(imageObj) {
var stage = new Konva.Stage({
container: 'container',
width: width,
height: height
});
var layer = new Konva.Layer();
// darth vader
var darthVaderImg = new Konva.Image({
image: imageObj,
x: stage.getWidth() / 2 - 200 / 2,
y: stage.getHeight() / 2 - 137 / 2,
width: 200,
height: 137,
draggable: true
});
// add cursor styling
darthVaderImg.on('mouseover', function() {
document.body.style.cursor = 'pointer';
});
darthVaderImg.on('mouseout', function() {
document.body.style.cursor = 'default';
});
layer.add(darthVaderImg);
stage.add(layer);
}
var imageObj = new Image();
imageObj.onload = function() {
drawImage(this);
};
imageObj.src = 'http://konvajs.github.io/assets/darth-vader.jpg';
</script>
I thought about using Ajax, but I don’t know how it will work. What would be the best way?