Expand Image on Hover

获取Konva最新的信息

Instructions: Mouseover images.

Konva Expand Image on Hover Demoview raw
<!DOCTYPE html>
<html>
  <head>
    <script src="https://unpkg.com/konva@4.0.18/konva.min.js"></script>
    <meta charset="utf-8" />
    <title>Konva Expand Image on Hover Demo</title>
    <style>
      body {
        margin: 0;
        padding: 0;
        overflow: hidden;
        background-color: #f0f0f0;
      }
    </style>
  </head>
  <body>
    <div id="container"></div>
    <script>
      var width = window.innerWidth;
      var height = window.innerHeight;

      var stage = new Konva.Stage({
        container: 'container',
        width: width,
        height: height
      });

      var layer = new Konva.Layer();
      stage.add(layer);

      // darth vader
      var darthVaderImg = new Konva.Image({
        x: 110,
        y: 88,
        width: 200,
        height: 137,
        offset: {
          x: 100,
          y: 68
        },
        draggable: true
      });
      layer.add(darthVaderImg);

      // yoda
      var yodaImg = new Konva.Image({
        x: 290,
        y: 70,
        width: 93,
        height: 104,
        offset: {
          x: 46,
          y: 52
        },
        draggable: true
      });
      layer.add(yodaImg);

      var imageObj1 = new Image();
      imageObj1.onload = function() {
        darthVaderImg.image(imageObj1);
        layer.draw();
      };
      imageObj1.src = '/assets/darth-vader.jpg';

      var imageObj2 = new Image();
      imageObj2.onload = function() {
        yodaImg.image(imageObj2);
        layer.draw();
      };
      imageObj2.src = '/assets/yoda.jpg';

      // use event delegation to update pointer style
      // and apply borders
      layer.on('mouseover', function(evt) {
        var shape = evt.target;
        document.body.style.cursor = 'pointer';
        shape.scaleX(1.2);
        shape.scaleY(1.2);
        layer.draw();
      });
      layer.on('mouseout', function(evt) {
        var shape = evt.target;
        document.body.style.cursor = 'default';
        shape.scaleX(1);
        shape.scaleY(1);
        layer.draw();
      });
    </script>
  </body>
</html>
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