如何在Java中检索本机字体名称？

Question

Java中有没有办法从Font对象中获取本机字体名称？

我使用此代码获取我的字体,Font.decode("Serif")并且出于调试目的,我想知道使用的本机字体.

Answer 1

它可能不那么简单.某些字体由许多物理字体组成,对不同的字形使用不同的物理字体.

例如,在我的Windows系统上,Serif字体使用12种物理字体:

• **TrueType字体:Family = Times New Roman Name = Times New Roman style = 0 fileName = C:\ Windows\Fonts\TIMES.TTF
• **TrueType字体:Family = Wingdings Name = Wingdings style = 0 fileName = C:\ Windows\Fonts\WINGDING.TTF
• **TrueType字体:Family = Symbol Name = Symbol style = 0 fileName = C:\ Windows\Fonts\SYMBOL.TTF
• **TrueType字体:Family = Lucida Sans Name = Lucida Sans Regular style = 0 fileName = C:\ Java\jdk\jdk1.6.0_37\jre\lib\fonts\LucidaSansRegular.ttf
• **TrueType字体:Family = MingLiU Name = MingLiU style = 0 fileName = C:\ Windows\Fonts\MINGLIU.TTC
• **TrueType字体:Family = Lucida Sans Name = Lucida Sans Regular style = 0 fileName = C:\ Java\jdk\jdk1.6.0_37\jre\lib\fonts\LucidaSansRegular.ttf
• **TrueType字体:Family = SimSun Name = SimSun style = 0 fileName = C:\ Windows\Fonts\SIMSUN.TTC
• **TrueType字体:Family = Lucida Sans Name = Lucida Sans Regular style = 0 fileName = C:\ Java\jdk\jdk1.6.0_37\jre\lib\fonts\LucidaSansRegular.ttf
• **TrueType字体:Family = MS Mincho Name = MS Mincho style = 0 fileName = C:\ Windows\Fonts\MSMINCHO.TTC
• **TrueType字体:Family = Batang Name = Batang style = 0 fileName = C:\ Windows\Fonts\batang.TTC
• **TrueType字体:Family = MingLiU-ExtB Name = MingLiU-ExtB style = 0 fileName = C:\ Windows\Fonts\MINGLIUB.TTC
• **TrueType字体:Family = SimSun-ExtB Name = SimSun-ExtB style = 0 fileName = C:\ Windows\Fonts\SIMSUNB.TTF

以下代码可以将字体分解为其物理组件.它使用反射黑客来访问sun.awt.Font2D对象,因此使用风险自负(适用于Oracle Java 6u37):

import java.awt.Font;
import java.lang.reflect.Method;
import java.util.Locale;

import sun.font.CompositeFont;
import sun.font.Font2D;
import sun.font.PhysicalFont;

public class FontTester
{
    public static void main(String... args)
    throws Exception
    {
        Font font = new Font("Serif", Font.PLAIN, 12);
        describeFont(font);
    }

    private static void describeFont(Font font)
    throws Exception
    {
        Method method = font.getClass().getDeclaredMethod("getFont2D");
        method.setAccessible(true);
        Font2D f = (Font2D)method.invoke(font);

        describeFont2D(f);
    }

    private static void describeFont2D(Font2D font)
    {
        if (font instanceof CompositeFont)
        {
            System.out.println("Font '" + font.getFontName(Locale.getDefault()) + "' is composed of:");

            CompositeFont cf = (CompositeFont)font;
            for (int i = 0; i < cf.getNumSlots(); i++)
            {
                PhysicalFont pf = cf.getSlotFont(i);
                describeFont2D(pf);
            }
        }
        else
            System.out.println("-> " + font);
    }
}