cfffontsubset.html

IText PDF开发工具说明文档,使用很方便。

protected void <B>BuildNewCharString</B>(int&nbsp;FontIndex)
                           throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Function uses BuildNewIndex to create the new index of the subset charstrings
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>FontIndex</CODE> - the font
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="BuildNewLGSubrs(int)"><!-- --></A><H3>
BuildNewLGSubrs</H3>
<PRE>
protected void <B>BuildNewLGSubrs</B>(int&nbsp;Font)
                        throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Function builds the new local & global subsrs indices. IF CID then All of 
 the FD Array lsubrs will be subsetted.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>Font</CODE> - the font
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="BuildFDSubrsOffsets(int, int)"><!-- --></A><H3>
BuildFDSubrsOffsets</H3>
<PRE>
protected void <B>BuildFDSubrsOffsets</B>(int&nbsp;Font,
                                   int&nbsp;FD)</PRE>
<DL>
<DD>The function finds for the FD array processed the local subr offset and its 
 offset array.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>Font</CODE> - the font<DD><CODE>FD</CODE> - The FDARRAY processed</DL>
</DD>
</DL>
<HR>

<A NAME="BuildSubrUsed(int, int, int, int[], java.util.HashMap, java.util.ArrayList)"><!-- --></A><H3>
BuildSubrUsed</H3>
<PRE>
protected void <B>BuildSubrUsed</B>(int&nbsp;Font,
                             int&nbsp;FD,
                             int&nbsp;SubrOffset,
                             int[]&nbsp;SubrsOffsets,
                             <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</A>&nbsp;hSubr,
                             <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</A>&nbsp;lSubr)</PRE>
<DL>
<DD>Function uses ReadAsubr on the glyph used to build the LSubr & Gsubr HashMap.
 The HashMap (of the lsubr only) is then scanned recursively for Lsubr & Gsubrs
 calls.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>Font</CODE> - the font<DD><CODE>FD</CODE> - FD array processed. 0 indicates function was called by non CID font<DD><CODE>SubrOffset</CODE> - the offset to the subr index to calc the bias<DD><CODE>SubrsOffsets</CODE> - the offset array of the subr index<DD><CODE>hSubr</CODE> - HashMap of the subrs used<DD><CODE>lSubr</CODE> - ArrayList of the subrs used</DL>
</DD>
</DL>
<HR>

<A NAME="BuildGSubrsUsed(int)"><!-- --></A><H3>
BuildGSubrsUsed</H3>
<PRE>
protected void <B>BuildGSubrsUsed</B>(int&nbsp;Font)</PRE>
<DL>
<DD>Function scans the Glsubr used ArrayList to find recursive calls 
 to Gsubrs and adds to Hashmap & ArrayList
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>Font</CODE> - the font</DL>
</DD>
</DL>
<HR>

<A NAME="ReadASubr(int, int, int, int, java.util.HashMap, java.util.ArrayList, int[])"><!-- --></A><H3>
ReadASubr</H3>
<PRE>
protected void <B>ReadASubr</B>(int&nbsp;begin,
                         int&nbsp;end,
                         int&nbsp;GBias,
                         int&nbsp;LBias,
                         <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</A>&nbsp;hSubr,
                         <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</A>&nbsp;lSubr,
                         int[]&nbsp;LSubrsOffsets)</PRE>
<DL>
<DD>The function reads a subrs (glyph info) between begin and end.
 Adds calls to a Lsubr to the hSubr and lSubrs.
 Adds calls to a Gsubr to the hGSubr and lGSubrs.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>begin</CODE> - the start point of the subr<DD><CODE>end</CODE> - the end point of the subr<DD><CODE>GBias</CODE> - the bias of the Global Subrs<DD><CODE>LBias</CODE> - the bias of the Local Subrs<DD><CODE>hSubr</CODE> - the HashMap for the lSubrs<DD><CODE>lSubr</CODE> - the ArrayList for the lSubrs</DL>
</DD>
</DL>
<HR>

<A NAME="HandelStack()"><!-- --></A><H3>
HandelStack</H3>
<PRE>
protected void <B>HandelStack</B>()</PRE>
<DL>
<DD>Function Checks how the current operator effects the run time stack after being run 
 An operator may increase or decrease the stack size
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="StackOpp()"><!-- --></A><H3>
StackOpp</H3>
<PRE>
protected int <B>StackOpp</B>()</PRE>
<DL>
<DD>Function checks the key and return the change to the stack after the operator
<P>
<DD><DL>

<DT><B>Returns:</B><DD>The change in the stack. 2-> flush the stack</DL>
</DD>
</DL>
<HR>

<A NAME="EmptyStack()"><!-- --></A><H3>
EmptyStack</H3>
<PRE>
protected void <B>EmptyStack</B>()</PRE>
<DL>
<DD>Empty the Type2 Stack
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="PopStack()"><!-- --></A><H3>
PopStack</H3>
<PRE>
protected void <B>PopStack</B>()</PRE>
<DL>
<DD>Pop one element from the stack
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="PushStack()"><!-- --></A><H3>
PushStack</H3>
<PRE>
protected void <B>PushStack</B>()</PRE>
<DL>
<DD>Add an item to the stack
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="ReadCommand()"><!-- --></A><H3>
ReadCommand</H3>
<PRE>
protected void <B>ReadCommand</B>()</PRE>
<DL>
<DD>The function reads the next command after the file pointer is set
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="CalcHints(int, int, int, int, int[])"><!-- --></A><H3>
CalcHints</H3>
<PRE>
protected int <B>CalcHints</B>(int&nbsp;begin,
                        int&nbsp;end,
                        int&nbsp;LBias,
                        int&nbsp;GBias,
                        int[]&nbsp;LSubrsOffsets)</PRE>
<DL>
<DD>The function reads the subroutine and returns the number of the hint in it.
 If a call to another subroutine is found the function calls recursively.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>begin</CODE> - the start point of the subr<DD><CODE>end</CODE> - the end point of the subr<DD><CODE>LBias</CODE> - the bias of the Local Subrs<DD><CODE>GBias</CODE> - the bias of the Global Subrs<DD><CODE>LSubrsOffsets</CODE> - The Offsets array of the subroutines
<DT><B>Returns:</B><DD>The number of hints in the subroutine read.</DL>
</DD>
</DL>
<HR>

<A NAME="BuildNewIndex(int[], java.util.HashMap)"><!-- --></A><H3>
BuildNewIndex</H3>
<PRE>
protected byte[] <B>BuildNewIndex</B>(int[]&nbsp;Offsets,
                               <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</A>&nbsp;Used)
                        throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Function builds the new offset array, object array and assembles the index.
 used for creating the glyph and subrs subsetted index
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>Offsets</CODE> - the offset array of the original index<DD><CODE>Used</CODE> - the hashmap of the used objects
<DT><B>Returns:</B><DD>the new index subset version
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="AssembleIndex(int[], byte[])"><!-- --></A><H3>
AssembleIndex</H3>
<PRE>
protected byte[] <B>AssembleIndex</B>(int[]&nbsp;NewOffsets,
                               byte[]&nbsp;NewObjects)</PRE>
<DL>
<DD>Function creates the new index, inserting the count,offsetsize,offset array
 and object array.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>NewOffsets</CODE> - the subsetted offset array<DD><CODE>NewObjects</CODE> - the subsetted object array
<DT><B>Returns:</B><DD>the new index created</DL>
</DD>
</DL>
<HR>

<A NAME="BuildNewFile(int)"><!-- --></A><H3>
BuildNewFile</H3>
<PRE>
protected byte[] <B>BuildNewFile</B>(int&nbsp;Font)</PRE>
<DL>
<DD>The function builds the new output stream according to the subset process
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>Font</CODE> - the font
<DT><B>Returns:</B><DD>the subsetted font stream</DL>
</DD>
</DL>
<HR>

<A NAME="CopyHeader()"><!-- --></A><H3>
CopyHeader</H3>
<PRE>
protected void <B>CopyHeader</B>()</PRE>
<DL>
<DD>Function Copies the header from the original fileto the output list
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="BuildIndexHeader(int, int, int)"><!-- --></A><H3>
BuildIndexHeader</H3>
<PRE>
protected void <B>BuildIndexHeader</B>(int&nbsp;Count,