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How to flip textbox horizontally using FabricJS?

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Sep 16, 2023 pm 01:17 PM

如何使用 FabricJS 水平翻转文本框？

In this tutorial, we will learn how to flip a Textbox object horizontally using FabricJS. We can customize, stretch or move the text written in the text box. In order to create a textbox, we have to create an instance of the Fabric.Textbox class and add it to the canvas. We can flip the text box object horizontally using the FlipX property.

Syntax

new fabric.Textbox(text: String, { flipX: Boolean }: Object)

Parameters

text - This parameter accepts a string, which is We are going to use the text string we want to display in our text box.
Options (optional) - This parameter is an object that provides additional customization of our text box. Using this parameter, you can change object-related properties such as color, cursor, stroke width, and many other properties. flipX is a property of the object.

Option Key

##flipX - This property accepts a Boolean value, allows us to flip the object horizontally.

Passing FlipX as key with "false" value

flipX property, the text will not flip horizontally.

<!DOCTYPE html>
<html>
<head>
   <!-- Adding the Fabric JS Library-->
   <script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/510/fabric.min.js"></script>
</head>
<body>
   <h2 id="Passing-flipX-as-key-with-a-false-value">Passing flipX as key with a "false" value</h2>
   <p>You can see that the text has not flipped horizontally</p>
   <canvas id="canvas"></canvas>
   <script>
      // Initiate a canvas instance
      var canvas = new fabric.Canvas("canvas");
      canvas.setWidth(document.body.scrollWidth);
      canvas.setHeight(250);

      // Initiate a textbox object
      var textbox = new fabric.Textbox("Each day provides its own gifts.", {
         backgroundColor: "#e3dac9",
         width: 400,
         left: 70,
         top: 70,
         flipX: false,
      });

      // Create gradient fill
      textbox.set(
         "fill",
         new fabric.Gradient({
            type: "linear",
            coords: { x1: 0, y1: 0, x2: 100, y2: 0 },
               colorStops: [
                  { offset: 0, color: "#545a2c" },
                  { offset: 1, color: "#6495ed" },
               ],
            })
         );
      // Add it to the canvas
      canvas.add(textbox);
   </script>
</body>
</html>

Passing the FlipX attribute as a key with a value of "true"

<!DOCTYPE html>
<html>
<head>
   <!-- Adding the Fabric JS Library-->
   <script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/510/fabric.min.js"></script>
</head>
<body>
   <h2 id="Passing-the-flipX-property-as-key-with-a-lsquo-true-rsquo-value">Passing the flipX property as key with a &lsquo;true&rsquo; value</h2>
   <p>You can see that the text has flipped horizontally</p>
   <canvas id="canvas"></canvas>
   <script>
      // Initiate a canvas instance
      var canvas = new fabric.Canvas("canvas");
      canvas.setWidth(document.body.scrollWidth);
      canvas.setHeight(250);

      // Initiate a textbox object
      var textbox = new fabric.Textbox("Each day provides its own gifts.", {
         backgroundColor: "#e3dac9",
         width: 400,
         left: 70,
         top: 70,
         flipX: true,
      });

      // Create gradient fill
         textbox.set(
         "fill",
         new fabric.Gradient({
            type: "linear",
            coords: { x1: 0, y1: 0, x2: 100, y2: 0 },
            colorStops: [
               { offset: 0, color: "#545a2c" },
               { offset: 1, color: "#6495ed" },
            ],
         })
      );
      // Add it to the canvas
      canvas.add(textbox);
   </script>
</body>
</html>

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