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How to change the font style of a Textbox using FabricJS?
In this tutorial, we are going to see how to change the font style of a Textbox using FabricJS. We can customize, stretch or move around the text written in a textbox. In order to create a textbox, we will have to create an instance of fabric.Textbox class and add it to the canvas. Font style refers to the style of characters typed within a textbox.
Syntax
new fabric.Textbox(text: String, { fontStyle: String }: Object)
Parameters
-
text ? This parameter accepts a String which is the text string that we want to display inside our textbox.
- options (optional) ? This parameter is an Object which provides additional customizations to our textbox. Using this parameter, properties such as colour, cursor, stroke width, and a lot of other properties can be changed related to the object of which fontStyle is a property.
fontStyle Property Options
The fontStyle property accepts a String which allows us to set the typeface variation of the text inside our textbox. The possible values are:
-
normal ? The text displays the normal font style. This is also the default.
-
italic ? The text is displayed as cursive and slants to the right.
-
oblique ? The text is displayed as the sloped version of the normal typeface. It usually looks similar to italic but an italic is a special version of the font, whereas an oblique version is just the regular version inclined a bit.
Example 1: Using "oblique" Font Style
Let's see a code example to understand how our textbox object would appear when the fontStyle property is used with the value "oblique".
<!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>Passing the fontStyle property as key with the value as "oblique"</h2>
<p>You can see that the text is oblique</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("Good things happen to those who hustle.", {
backgroundColor: "#fff8dc",
width: 400,
left: 50,
top: 70,
fill: "#cf3476",
fontStyle: "oblique",
});
// Add it to the canvas
canvas.add(textbox);
</script>
</body>
</html>
Example 2: Using "italic" Font Style
In this example, we are passing the fontStyle property with the value "italic". This means that our textbox object will be rendered with text that is slanted to the right.
<!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>Passing the fontStyle property as key with the value as "italic"</h2>
<p>You can see that the text is italic</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("Good things happen to those who hustle.", {
backgroundColor: "#fff8dc",
width: 400,
left: 50,
top: 70,
fill: "#cf3476",
fontStyle: "italic",
});
// Add it to the canvas
canvas.add(textbox);
</script>
</body>
</html>
Key Points
- The
fontStyleproperty accepts three values: "normal", "italic", and "oblique" - "normal" is the default font style if no value is specified
- "italic" uses a specially designed cursive version of the font
- "oblique" is simply the normal font slanted at an angle
- The font style can be combined with other text properties like color, size, and background
Conclusion
The fontStyle property in FabricJS allows you to easily change the appearance of text in a textbox. Use "italic" for cursive text, "oblique" for slanted text, or "normal" for regular styling.
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