如何在 JavaFX 中調整文字對齊方式?
您可以透過設定 wrappingWidth 屬性的值來設定使用者空間中文字的固定寬度。這樣做之後,給定的寬度將被視為使用者座標中文字的邊界,並且文字將在此給定寬度內排列。
如果您沒有為該屬性提供任何值,則預設情況下,文字中最長行的長度將被視為邊界框的寬度。
文字對齊是指文字在邊界框內的水平排列方式。您可以使用 setTextAlignment() 方法調整文字的對齊方式。此方法接受名為 *TextAlignment* 的列舉的常量之一,並相應地調整文字。此列舉提供 3 個常量:
CENTER - 將文字與邊界框的中心對齊。
JUSTIFY - 在邊界框內對齊文字。
LEFT - 將文字左對齊。
RIGHT - 將文字右對齊。
示例
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.util.Scanner;
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
import javafx.scene.text.Text;
import javafx.scene.text.TextAlignment;
public class TextAllignment extends Application {
public void start(Stage stage) throws FileNotFoundException {
//Reading the contents of a text file.
InputStream inputStream = new FileInputStream("D:\sample.txt");
Scanner sc = new Scanner(inputStream);
StringBuffer sb = new StringBuffer();
while(sc.hasNext()) {
sb.append(" "+sc.nextLine()+"\n");
}
//Creating a text object
Text text = new Text(10.0, 25.0, sb.toString());
//Wrapping the text
text.setWrappingWidth(565);
//Setting the alignment
text.setTextAlignment(TextAlignment.Right);
//Setting the stage
Group root = new Group(text);
Scene scene = new Scene(root, 595, 150, Color.BEIGE);
stage.setTitle("Text Alignment");
stage.setScene(scene);
stage.show();
}
public static void main(String args[]){
launch(args);
}
}sample.txt
假設以下是 sample.txt 檔案的內容:
Tutorials Point originated from the idea that there exists a class of readers who respond better to online content and prefer to learn new skills at their own pace from the comforts of their drawing rooms. The journey commenced with a single tutorial on HTML in 2006 and elated by the response it generated, we worked our way to adding fresh tutorials to our repository which now proudly flaunts a wealth of tutorials and allied articles on topics ranging from programming languages to web designing to academics and much more.
輸出

同樣,如果您更改對齊值,您將相應地獲得輸出:
左對齊 -

居中對齊 -

兩端對齊 -

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