Java swing中的图标字体：字体图标不显示在JLabel中

当然，我正在用java制作swing应用程序，带有按钮。我决定让他们通过JLabel与图标字体良好的可伸缩性。我尝试使用标签字体，效果很好：

Font font = Font.createFont(Font.TRUETYPE_FONT, int.class.getResourceAsStream("/fonts/fontawesome.ttf")).deriveFont(20f);
JFrame frame = new JFrame();
frame.setLayout(new FlowLayout(FlowLayout.TRAILING, 20, 20));
JLabel label1 = new JLabel("\uF144");
label1.setFont(font);
frame.add(label1);
JLabel label2 = new JLabel("\uF1B0");
label2.setFont(font);
frame.add(label2);
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);

所以，我去了图标字体生成器（Fontello）并选择了所需的图标。 我将生成的字体添加到我的应用程序中，更改了代码并进行了测试运行。。。我没有看到他们：他们只是没有出现

我编写了测试代码（我制作了带有红色边框的图标以查看发生了什么）：

final Font[]Font={Font.createFont（Font.TRUETYPE_Font，int.class.getResourceAsStream（“/fonts/fontello.ttf”））}；
JFrame=新JFrame（）；
frame.setLayout（新的FlowLayout（FlowLayout.TRAILING，20,20））；
JLabel size=newjlabel（“size:+font[0].getSize2D（））；
帧。添加（大小）；
//我有12个字体图标
JLabel[]标签=新的JLabel[12]；
int j=0；
//这些图标都有代码
对于（char i='\uE800'；iSo，这不是已发现问题的解决方案，而是解决方法。我编写了自己的swing组件，用于从给定字体绘制给定glyph：

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.font.FontRenderContext;
import java.awt.font.GlyphVector;
import java.awt.geom.Rectangle2D;

public class FontIconGlyphButton extends JComponent
{
    // to avoid wrong glyph codes
    public interface FontIconGlyphCode
    {
        char toCharCode();
    }

    private final Color color;
    private final Color hoverColor;
    private final Color disabledColor;
    private final Font font;

    private GlyphVector vector;
    private Rectangle2D size;
    private FontIconGlyphCode iconCode;
    private boolean hover = false;

    public FontIconGlyphButton(Font font, FontIconGlyphCode iconCode, Color color, Color hoverColor, Color disabledColor)
    {
        this(font, iconCode, color, hoverColor, disabledColor, null);
    }

    public FontIconGlyphButton(Font font, FontIconGlyphCode iconCode, Color color, Color hoverColor, Color disabledColor, ActionListener listener)
    {
        this.font = font;
        this.color = color;
        this.hoverColor = hoverColor;
        this.disabledColor = disabledColor;
        setIconCode(iconCode);
        addMouseListener(new MouseAdapter()
        {
            @Override
            public void mouseClicked(MouseEvent e)
            {
                if(listener != null)
                    listener.actionPerformed(new ActionEvent(e.getSource(), e.getID(), Action.DEFAULT));
            }

            @Override
            public void mouseEntered(MouseEvent e)
            {
                hover = true;
                repaint();
            }

            @Override
            public void mouseExited(MouseEvent e)
            {
                hover = false;
                repaint();
            }
        });
    }

    public void setIconCode(FontIconGlyphCode iconCode)
    {
        this.iconCode = iconCode;
        FontRenderContext context = new FontRenderContext(null, true, true);
        vector = font.createGlyphVector(context, String.valueOf(iconCode.toCharCode()));
        size = vector.getGlyphMetrics(0).getBounds2D();
        repaint();
    }

    public FontIconGlyphCode getIconCode()
    {
        return iconCode;
    }

    @Override
    protected void paintComponent(Graphics g1)
    {
        Graphics2D g = (Graphics2D) g1;
        g.setColor(isEnabled() ? (hover ? hoverColor : color) : disabledColor);
        g.drawGlyphVector(vector, (float) -size.getX(), (float) -size.getY());
    }

    @Override
    public Dimension getMinimumSize()
    {
        return size.getBounds().getSize();
    }

    @Override
    public Dimension getPreferredSize()
    {
        return size.getBounds().getSize();
    }
}

为什么你要用标签而不是按钮来制作按钮？因为我不需要删除按钮背景绘画（如“-1”“+1”按钮）。好的，但它们不是真正的按钮。无论如何，你能提供复制此按钮所需的资源文件吗？当然，它是“蒙版”按钮：）有字体：当我们在这里进行调查时，我将GlyphVector（似乎这很正常）与JComponent一起使用来实现我的目标（它也是“屏蔽”按钮：）。不是使用JComponent中的MouseeEvents来使用未修饰的JButton，而是使用ChangeListener中的ButtonModel
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.font.FontRenderContext;
import java.awt.font.GlyphVector;
import java.awt.geom.Rectangle2D;

public class FontIconGlyphButton extends JComponent
{
    // to avoid wrong glyph codes
    public interface FontIconGlyphCode
    {
        char toCharCode();
    }

    private final Color color;
    private final Color hoverColor;
    private final Color disabledColor;
    private final Font font;

    private GlyphVector vector;
    private Rectangle2D size;
    private FontIconGlyphCode iconCode;
    private boolean hover = false;

    public FontIconGlyphButton(Font font, FontIconGlyphCode iconCode, Color color, Color hoverColor, Color disabledColor)
    {
        this(font, iconCode, color, hoverColor, disabledColor, null);
    }

    public FontIconGlyphButton(Font font, FontIconGlyphCode iconCode, Color color, Color hoverColor, Color disabledColor, ActionListener listener)
    {
        this.font = font;
        this.color = color;
        this.hoverColor = hoverColor;
        this.disabledColor = disabledColor;
        setIconCode(iconCode);
        addMouseListener(new MouseAdapter()
        {
            @Override
            public void mouseClicked(MouseEvent e)
            {
                if(listener != null)
                    listener.actionPerformed(new ActionEvent(e.getSource(), e.getID(), Action.DEFAULT));
            }

            @Override
            public void mouseEntered(MouseEvent e)
            {
                hover = true;
                repaint();
            }

            @Override
            public void mouseExited(MouseEvent e)
            {
                hover = false;
                repaint();
            }
        });
    }

    public void setIconCode(FontIconGlyphCode iconCode)
    {
        this.iconCode = iconCode;
        FontRenderContext context = new FontRenderContext(null, true, true);
        vector = font.createGlyphVector(context, String.valueOf(iconCode.toCharCode()));
        size = vector.getGlyphMetrics(0).getBounds2D();
        repaint();
    }

    public FontIconGlyphCode getIconCode()
    {
        return iconCode;
    }

    @Override
    protected void paintComponent(Graphics g1)
    {
        Graphics2D g = (Graphics2D) g1;
        g.setColor(isEnabled() ? (hover ? hoverColor : color) : disabledColor);
        g.drawGlyphVector(vector, (float) -size.getX(), (float) -size.getY());
    }

    @Override
    public Dimension getMinimumSize()
    {
        return size.getBounds().getSize();
    }

    @Override
    public Dimension getPreferredSize()
    {
        return size.getBounds().getSize();
    }
}