如何使用 konva.js 将文本放入矩形内？

Question

我有一个包含一些矩形的项目，我需要在其中放置文本。是否有 Konva class 可以做到这一点？我试过使用 Konva.group (), label ...

这是我最后一次尝试，开始时文本保持原样，但是当移动 Rect 时，位置没有更新。

var rect = new Konva.Rect({
  x: 20,
  y: 60,
  stroke: '#123456',
  strokeWidth: 5,
  fill: '#ddd',
  width: 600,
  height: 450,
  shadowColor: 'black',
  shadowBlur: 10,
  shadowOffset: [10, 10],
  shadowOpacity: 0.2,
  cornerRadius: 10,
  draggable: true,

})

var complexText = new Konva.Text({
  x: ((rect.attrs.width + rect.attrs.x) - 300)/2 ,
  y: ((rect.attrs.height + rect.attrs.y))/2,
  text:
  "COMPLEX TEXT\n\nAll the world's a stage, and all the men and women merely players. They have their exits and their entrances.",
  fontSize: 18,
  fontFamily: 'Calibri',
  fill: '#555',
  width: 300,
  height:300,
  align: 'center',
  draggable: true,


});

Answer 1

您的选择是：

使用Konva.Label
创建一个包含矩形和文本的可拖动组
创建一个自定义形状。在 sceneFunc

Answer 2

var width = window.innerWidth;
var height = window.innerHeight;
var stage = new Konva.Stage({
    container: 'container',
    width: width,
    height: height,
    draggable: true
});

var rectangleLayer = new Konva.Layer();
 
function spawnRectangle(angle){
    var rectangle = new Konva.Group({
        x: 25, 
        y: 25, 
        width: 130,
        height: 25,
        rotation: angle, 
        draggable: true,
    }); 

    rectangle.add(new Konva.Rect({
        width: 130,
        height: 25,
        fill: 'lightblue'
    }));

    rectangle.add(new Konva.Text({
        text:'123',
        fontSize: 18,
        fontFamily: 'Calibri',
        fill: '#000',
        width: 130,
        padding: 5,
        align: 'center'
    }));
    rectangleLayer.add(rectangle);
    stage.add(rectangleLayer);
}

body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #D3D3D3;
    background-size: cover;
 }
 
#desc {
    position : absolute;
    top: 5px;
    left: 5px;
}

<script src="https://unpkg.com/konva@4.0.18/konva.min.js"></script>
 
<body>
    <div id="container"></div>
    <div id="desc">
          <button onclick="spawnRectangle(0)">spawn rectangle</button>
          <button onclick="spawnRectangle(90)">spawn rotated rectangle</button>
    </div>
</body>

如何使用 konva.js 将文本放入矩形内？

How to put a text inside a rect using konva.js?

javascript

text

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