Changings Graphics drawString Color

Question

我正在尝试从ttf文件创建一个字体，然后使用Graphics2D将其渲染为某种颜色。

字体加载正常并以正确的字体呈现到屏幕上，但文本的颜色仍为黑色。如何将文本颜色更改为白色或其他颜色？任何帮助表示赞赏！

获取字体：

    public Font getFont(String name) {
        Font font = null;
        if (name == null) {
            font = new Font("sans", Font.PLAIN, 24);
        }

        try {
            String fname = "assets/fonts/" + name;
            File fontFile = new File(fname);
            font = Font.createFont(Font.TRUETYPE_FONT, fontFile);
            GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
            ge.registerFont(font);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return font;
    }

绘制文字：

    Font title = getFont("PressStart2P.ttf");
    g2.setFont(title.deriveFont(30.0f));
    g2.setColor(Color.WHITE);
    g2.drawString("A Game of Squares", 50, 80);

Answer 1

问题在于：

    g2.setColor(new Color(Color.WHITE));

Java中的Color类不接受另一个Color对象作为其构造函数的输入，因为Color.WHITE（以及无数其他预定义颜色）是对Color对象的引用，该行应为：

    g2.setColor(Color.WHITE);

来源：http://docs.oracle.com/javase/7/docs/api/java/awt/Color.html

Answer 2

对我来说很好......

一些注意事项：

1. 我已经将字体用作嵌入式资源，但它不应该有所区别（ps-测试（作为外部资源），一切都很好）
2. 避免在paint方法中加载资源，这会减慢您的绘制过程。油漆方法应尽快返回



import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsEnvironment;
import java.io.File;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;

public class FontTest {

    public static void main(String[] args) {
        new FontTest();
    }

    public FontTest() {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
                }

                JFrame frame = new JFrame("Testing");
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.setLayout(new BorderLayout());
                frame.add(new TestPane());
                frame.pack();
                frame.setLocationRelativeTo(null);
                frame.setVisible(true);
            }
        });
    }

    public class TestPane extends JPanel {

        private Font font;

        public TestPane() {
            font = getFont("PressStart2P.ttf");
            font = font.deriveFont(Font.PLAIN, 30);
            setBackground(Color.BLACK);
        }

        @Override
        public Dimension getPreferredSize() {
            return new Dimension(1000, 200);
        }

        @Override
        protected void paintComponent(Graphics g) {
            super.paintComponent(g);
            Graphics2D g2d = (Graphics2D) g.create();
            String text = "All your base are belong to us";
            g2d.setFont(font);
            FontMetrics fm = g2d.getFontMetrics();
            int x = (getWidth() - fm.stringWidth(text)) / 2;
            int y = ((getHeight() - fm.getHeight()) / 2) + fm.getAscent();
            g2d.setColor(Color.WHITE);
            g2d.drawString(text, x, y);
            g2d.dispose();
        }

        public Font getFont(String name) {
            Font font = null;
            if (name == null) {
                font = new Font("sans", Font.PLAIN, 24);
            }

            try {
                String fname = "/assets/fonts/" + name;
                font = Font.createFont(Font.TRUETYPE_FONT, getClass().getResourceAsStream(fname));
                GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
                ge.registerFont(font);
            } catch (Exception e) {
                e.printStackTrace();
            }
            return font;
        }
    }

}