JavaFX Fonts

谁践踏了优雅 2023-10-14 18:59 2阅读 0赞

The *JavaFX* *Font* class, `java.scene.text.Font`, enables you to load different Fonts for use in your JavaFX applications. A font is a text style. All text rendered with the same font will look similar. In this JavaFX Font tutorial I will show you how to load and set fonts in JavaFX.

### Create Font Instance ###

To use fonts in JavaFX you must create a JavaFX Font instance. The easiest way to create a JavaFX Font instance is to use the static factory methods in the Font class. The following example shows how to create JavaFX Font instances using the many variations of the Font class static factory methods:

String      fontFamily  = "Arial";
    double      fontSize    = 13;
    FontWeight  fontWeight  = FontWeight.BOLD;
    FontPosture fontPosture = FontPosture.ITALIC;
    
    Font font1 = Font.font(fontFamily);
    Font font2 = Font.font(fontSize);
    Font font3 = Font.font(fontFamily, fontSize);
    Font font4 = Font.font(fontFamily, fontWeight , fontSize);
    Font font5 = Font.font(fontFamily, fontPosture, fontSize);
    Font font6 = Font.font(fontFamily, fontWeight , fontPosture, fontSize);

As you can see, the Font factory methods enable you to create Font instances representing different font families, font sizes, font weights and font postures.

### Using the Font Instance ###

Once you have created a JavaFX Font instance you use it by setting it on whatever JavaFX component capable of using a Font. For instance, you can set it on a [JavaFX Text][] control. Here is an example of setting a Font instance on a Text control:

Font font = Font.font("Arial");
    
    Text text = new Text("This is the text");
    text.setFont(font);

Precisely how a Font object is applied to a given JavaFX control depends on the specific JavaFX control. In the JavaFX Text example the Font object is applied via the Text `setFont()` method, as shown above.

### List Installed Font Families and Names ###

The JavaFX Font class provides two methods that can list the font families and font names and installed on the system the JavaFX application is running on. These methods are the `getFamilies()` and `getFontNames()` methods. Here are some examples of calling these methods:

List<String> fontFamilies = Font.getFamilies();
    List<String> fontNames    = Font.getFontNames();

Both font family names and font names can be used when creating a Font instance. Provide either the font family name or font name in the Font factory method `fontFamily` parameter.

To see the actual names, loop through the lists above and print out their names, like this:

for(String item : fontFamilies) {
        System.out.println(item);
    }
    for(String item : fontNames) {
        System.out.println(item);
    }

url:[JavaFX Fonts][]

[JavaFX Text]: https://jenkov.com/tutorials/javafx/text.html
[JavaFX Fonts]: https://jenkov.com/tutorials/javafx/fonts.html