使用SfntTool制作字体剪辑工具4 - 在C#环境下转码

在完成了jar包转dll、反编译.class文件这些前奏之后，好戏开场了！

首先，添加必要的（Java）依赖库：IKVM.OpenJDK.Core.dll，IKVM.OpenJDK.Util.dll，IKVM.Runtime.dll，IKVM.Runtime.JNI.dll。

然后，封装（翻译）SfntTool方法：

using SfntlyTag = com.google.typography.font.sfntly.Tag;
using com.google.typography.font.sfntly;
using com.google.typography.font.sfntly.table.core;
using com.google.typography.font.tools.subsetter;
using com.google.typography.font.tools.sfnttool;
using com.google.typography.font.tools.conversion.woff;
using java.io;
using com.google.typography.font.sfntly.data;
using com.google.typography.font.tools.conversion.eot;
using java.util;
using java.lang;

namespace FontClipper
{
class SfntlyFontHelper
{
private bool strip = false;
private bool woff = false;
private bool eot = false;
private bool mtx = false;

/// <summary>
/// 剪辑字体
/// </summary>
/// <param name="subString">新字体文本信息</param>
/// <param name="fontPathOri">原始字体路径</param>
/// <param name="fontPathNew">新字体路径</param>
public void ClipFont(string subsetString, string fontPathOri, string fontPathNew)
{
try
{
var localFileOri = new java.io.File(fontPathOri);
var localFileNew = new java.io.File(fontPathNew);
SubsetFontFile(subsetString, localFileOri, localFileNew);
}
catch (System.Exception ex)
{
throw new System.Exception(ex.Message);
}
}

private void SubsetFontFile(string subsetString, java.io.File paramFile1, java.io.File paramFile2)
{
FontFactory localFontFactory = FontFactory.getInstance();
java.io.FileInputStream localFileInputStream = null;
try
{
localFileInputStream = new java.io.FileInputStream(paramFile1);
byte[] arrayOfByte = new byte[(int)paramFile1.length()];
localFileInputStream.read(arrayOfByte);
Font[] arrayOfFont = null;
arrayOfFont = localFontFactory.loadFonts(arrayOfByte);
Font localFont1 = arrayOfFont[0];
java.util.ArrayList localArrayList = new java.util.ArrayList();
localArrayList.add(CMapTable.CMapId.WINDOWS_BMP);
//java.lang.Object localObject1 = null;
java.lang.Object localObject2 = null;

Font localFont2 = localFont1;
java.lang.Object localObject3;
if (subsetString != null)
{
localObject2 = new RenumberingSubsetter(localFont2, localFontFactory);
((Subsetter)localObject2).setCMaps(localArrayList, 1);
localObject3 = (java.lang.Object)GlyphCoverage.getGlyphCoverage(localFont1, subsetString);
((Subsetter)localObject2).setGlyphs((java.util.List)localObject3);
var localHashSet = new java.util.HashSet();
localHashSet.add(java.lang.Integer.valueOf(SfntlyTag.GDEF));
localHashSet.add(java.lang.Integer.valueOf(SfntlyTag.GPOS));
localHashSet.add(java.lang.Integer.valueOf(SfntlyTag.GSUB));
localHashSet.add(java.lang.Integer.valueOf(SfntlyTag.kern));
localHashSet.add(java.lang.Integer.valueOf(SfntlyTag.hdmx));
localHashSet.add(java.lang.Integer.valueOf(SfntlyTag.vmtx));
localHashSet.add(java.lang.Integer.valueOf(SfntlyTag.VDMX));
localHashSet.add(java.lang.Integer.valueOf(SfntlyTag.LTSH));
localHashSet.add(java.lang.Integer.valueOf(SfntlyTag.DSIG));
localHashSet.add(java.lang.Integer.valueOf(SfntlyTag.intValue(new byte[] { 109, 111, 114, 116 })));
localHashSet.add(java.lang.Integer.valueOf(SfntlyTag.intValue(new byte[] { 109, 111, 114, 120 })));
((Subsetter)localObject2).setRemoveTables(localHashSet);
localFont2 = ((Subsetter)localObject2).subset().build();
}
if (this.strip)
{
localObject2 = new HintStripper(localFont2, localFontFactory);
localObject3 = new HashSet();
((Set)localObject3).add(Integer.valueOf(Tag.fpgm));
((Set)localObject3).add(Integer.valueOf(Tag.prep));
((Set)localObject3).add(Integer.valueOf(Tag.cvt));
((Set)localObject3).add(Integer.valueOf(Tag.hdmx));
((Set)localObject3).add(Integer.valueOf(Tag.VDMX));
((Set)localObject3).add(Integer.valueOf(Tag.LTSH));
((Set)localObject3).add(Integer.valueOf(Tag.DSIG));
((Subsetter)localObject2).setRemoveTables((Set)localObject3);
localFont2 = ((Subsetter)localObject2).subset().build();
}
localObject2 = new java.io.FileOutputStream(paramFile2);
if (this.woff)
{
localObject3 = new WoffWriter().convert(localFont2);
((WritableFontData)localObject3).copyTo((OutputStream)localObject2);
}
else if (this.eot)
{
localObject3 = new EOTWriter(this.mtx).convert(localFont2);
((WritableFontData)localObject3).copyTo((OutputStream)localObject2);
}
else
{
localFontFactory.serializeFont(localFont2, (OutputStream)localObject2);
}
}
catch (System.Exception ex)
{
throw new System.Exception(ex.Message);
}
}
}
}

最后，在C#环境中调用：

try
{
var sfntlyFontHelper = new SfntlyFontHelper();
sfntlyFontHelper.ClipFont(subsetString, fontPathOri, fontPathNew);
MessageBox.Show("字体生成成功！");
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message);
}