如何检查是否启用了抗锯齿功能?(How to check whether antialiasing is enabled or not?)
优质
小牛编辑
125浏览
2023-12-01
问题描述 (Problem Description)
如何检查是否启用了抗锯齿功能?
解决方案 (Solution)
下面的示例演示如何使用RenderingHints类检查是否打开了抗锯齿功能。
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import javax.swing.JComponent;
import javax.swing.JFrame;
public class Main {
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.add(new MyComponent());
frame.setSize(300, 300);
frame.setVisible(true);
}
}
class MyComponent extends JComponent {
public void paint(Graphics g) {
Graphics2D g2 = (Graphics2D) g;
RenderingHints rh = g2.getRenderingHints();
boolean bl = rh.containsValue (RenderingHints.VALUE_ANTIALIAS_ON);
System.out.println(bl);
g2.setRenderingHint(
RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
}
}
结果 (Result)
上面的代码示例将产生以下结果。
False
False
False