Skip to content
Related Articles

Related Articles

Improve Article
Save Article
Like Article

Fabric.js Textbox lockScalingFlip Property

  • Last Updated : 24 Jan, 2021

In this article, we are going to see how to lock flipping by scaling a canvas Textbox using lockScalingFlip Property FabricJS. So that it can not be inverted by pulling the width to the negative side. The canvas Textbox means Textbox is movable and can be stretched according to requirement. Further, the Textbox can be customized when it comes to initial stroke color, height, width, fill color, or stroke width.

To make it possible we are going to use a JavaScript library called FabricJS. After importing the library using CDN, we will create a canvas block in the body tag which will contain our Textbox. After this, we will initialize instances of Canvas and Textbox provided by FabricJS and lock flipping by scaling of the Textbox using lockScalingFlip property and render the Textbox on the Canvas as given in the example below.

Hey geek! The constant emerging technologies in the world of web development always keeps the excitement for this subject through the roof. But before you tackle the big projects, we suggest you start by learning the basics. Kickstart your web development journey by learning JS concepts with our JavaScript Course. Now at it's lowest price ever!

Syntax:

fabric.Textbox('text', {
   lockScalingFlip: boolean
});

Parameters: This property accepts only one parameter as mentioned above and described below:



  • lockScalingFlip: It is a Boolean value that specifies whether to lock flipping by scaling or not.

Example 1: This example uses FabricJS to lock flipping by scaling of a canvas Textbox.

HTML




<!DOCTYPE html>
<html>
  
<head>
    <!-- Adding the FabricJS library -->
    <script src=
    </script>
</head>
  
<body>
    <h1 style="color: green;">
        GeeksforGeeks
    </h1>
  
    <h3>
        Fabric.js | Textbox lockScalingFlip Property
    </h3>
  
    <canvas id="canvas" width="600" height="300" 
        style="border:1px solid #000000">
    </canvas>
  
    <script>
  
        // Initiate a Canvas instance 
        var canvas = new fabric.Canvas("canvas");
  
        // Create a new Textbox instance 
        var text = new fabric.Textbox(
            'A Computer Science Portal', {
            width: 500,
            lockScalingFlip: true
        });
  
        // Render the Textbox in canvas 
        canvas.add(text);
        canvas.centerObject(text);
    </script>
</body>
  
</html>

Output:

Example 2: This example uses FabricJS to unlock flipping by scaling of a canvas Textbox.

HTML




<!DOCTYPE html>
<html>
  
<head>
    <!-- Adding the FabricJS library -->
    <script src=
    </script>
</head>
  
<body>
    <h1 style="color: green;">
        GeeksforGeeks
    </h1>
  
    <h3>
        Fabric.js | Textbox lockScalingFlip Property
    </h3>
  
    <canvas id="canvas" width="600" height="300" 
        style="border:1px solid #000000">
    </canvas>
  
    <script>
  
        // Initiate a Canvas instance 
        var canvas = new fabric.Canvas("canvas");
  
        // Create a new Textbox instance 
        var text = new fabric.Textbox(
            'A Computer Science Portal', {
            width: 500,
            lockScalingFlip: false
        });
  
        // Render the Textbox in canvas 
        canvas.add(text);
        canvas.centerObject(text);
    </script>
</body>
  
</html>

Output:




My Personal Notes arrow_drop_up
Recommended Articles
Page :

Start Your Coding Journey Now!