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Refactoring image conversion + some math bugfixes

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git-svn-id: svn://svn.code.sf.net/p/writer2latex/code/trunk@168 f0f2a975-2e09-46c8-9428-3b39399b9f3c
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henrikjust 2014-09-03 07:04:31 +00:00
parent 9babea1b6c
commit 74d7599b11
19 changed files with 533 additions and 369 deletions
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201
source/java/writer2latex/base/BinaryGraphicsDocument.java
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@ -20,160 +20,163 @@
*
* All Rights Reserved.
*
* Version 1.4 (2014-08-25)
* Version 1.4 (2014-09-03)
*
*/
package writer2latex.base;
import java.io.OutputStream;
import java.io.InputStream;
//import java.io.ByteArrayOutputStream;
import java.io.IOException;
import writer2latex.api.OutputFile;
import writer2latex.util.Misc;
/**
* <p>Class representing a binary graphics document.
* This class is used for representing graphics documents that are <i>not</i>
* interpreted in any way, but simply copied verbatim from the source format
* to the target format.</p>
*
* <p><code>GraphicsDocument</code> is used to create new graphics documents.</p>
*
/** This class is used to represent a binary graphics document to be included in the converter result.
* I may also represent a linked image, which should <em>not</em> be included (and will produce an empty file
* if it is).
*/
public class BinaryGraphicsDocument implements OutputFile {
//private final static int BUFFERSIZE = 1024;
private String docName;
private byte[] data;
private int nOff;
private int nLen;
private String sFileName;
private String sFileExtension;
private String sMimeType;
private boolean bIsLinked = false;
private boolean bIsAcceptedFormat = false;
// Data for an embedded image
private byte[] blob = null;
private int nOff;
private int nLen;
// Data for a linked image
private String sURL = null;
/**
* <p>Constructs a new graphics document.</p>
/**Constructs a new graphics document.
* This new document does not contain any data. Document data must
* be added using the appropriate methods.
*
* <p>This new document does not contain any information. Document data must
* either be added using appropriate methods, or an existing file can be
* {@link #read(InputStream) read} from an <code>InputStream</code>.</p>
*
* @param name The name of the <code>GraphicsDocument</code>.
* @param sName The name of the <code>GraphicsDocument</code>.
* @param sFileExtension the file extension
* @param sMimeType the MIME type of the document
*/
public BinaryGraphicsDocument(String name, String sFileExtension, String sMimeType) {
this.sFileExtension = sFileExtension;
this.sMimeType = sMimeType;
docName = trimDocumentName(name);
sFileName = Misc.trimDocumentName(name, sFileExtension);
}
/**
* <p>This method reads <code>byte</code> data from the InputStream.</p>
/** Set image contents to a byte array
*
* @param is InputStream containing a binary data file.
*
* @throws IOException In case of any I/O errors.
* @param data the image data
*/
public void read(InputStream is) throws IOException {
data = Misc.inputStreamToByteArray(is);
}
public void read(byte[] data) {
read(data,0,data.length);
public void setData(byte[] data, boolean bIsAcceptedFormat) {
setData(data,0,data.length,bIsAcceptedFormat);
}
public void read(byte[] data, int nOff, int nLen) {
this.data = data;
/** Set image contents to part of a byte array
*
* @param data the image data
* @param nOff the offset into the byte array
* @param nLen the number of bytes to use
* @param bIsAcceptedFormat flag to indicate that the format of the image is acceptable for the converter
*/
public void setData(byte[] data, int nOff, int nLen, boolean bIsAcceptedFormat) {
this.blob = data;
this.nOff = nOff;
this.nLen = nLen;
this.bIsAcceptedFormat = bIsAcceptedFormat;
this.bIsLinked = false;
this.sURL = null;
}
/*
* Utility method to make sure the document name is stripped of any file
* extensions before use.
/** Set the URL of a linked image
*
* @param sURL the URL
*/
private String trimDocumentName(String name) {
String temp = name.toLowerCase();
if (temp.endsWith(getFileExtension())) {
// strip the extension
int nlen = name.length();
int endIndex = nlen - getFileExtension().length();
name = name.substring(0,endIndex);
}
return name;
}
/**
* <p>Returns the <code>Document</code> name with no file extension.</p>
*
* @return The <code>Document</code> name with no file extension.
*/
public String getName() {
return docName;
public void setURL(String sURL) {
this.blob = null;
this.nOff = 0;
this.nLen = 0;
this.bIsAcceptedFormat = false; // or rather don't know
this.bIsLinked = true;
this.sURL = sURL;
}
/**
* <p>Returns the <code>Document</code> name with file extension.</p>
*
* @return The <code>Document</code> name with file extension.
/** Get the URL of a linked image
*
* @return the URL or null if this is an embedded image
*/
public String getFileName() {
return new String(docName + getFileExtension());
public String getURL() {
return sURL;
}
/** Does this <code>BinaryGraphicsDocument</code> represent a linked image?
*
* @return true if so
*/
public boolean isLinked() {
return bIsLinked;
}
/** Is this image in an acceptable format for the converter?
*
* @return true if so (always returns false for linked images)
*/
public boolean isAcceptedFormat() {
return bIsAcceptedFormat;
}
public byte[] getData() {
return data;
return blob;
}
// Implement OutputFile
/**
* <p>Writes out the <code>Document</code> content to the specified
* <code>OutputStream</code>.</p>
/** Writes out the content to the specified <code>OutputStream</code>.
* Linked images will not write any data.
*
* <p>This method may not be thread-safe.
* Implementations may or may not synchronize this
* method. User code (i.e. caller) must make sure that
* calls to this method are thread-safe.</p>
*
* @param os <code>OutputStream</code> to write out the
* <code>Document</code> content.
* @param os <code>OutputStream</code> to write out the content.
*
* @throws IOException If any I/O error occurs.
*/
public void write(OutputStream os) throws IOException {
os.write(data, nOff, nLen);
if (blob!=null) {
os.write(blob, nOff, nLen);
}
}
/** Get the file extension
*
* @return the file extension
*/
public String getFileExtension() {
return sFileExtension;
}
/**
* Returns the file extension for this type of
* <code>Document</code>.
/** Get the document with file extension.</p>
*
* @return The document with file extension.
*/
public String getFileName() {
return sFileName + sFileExtension;
}
/** Get the MIME type of the document.
*
* @return The file extension of <code>Document</code>.
* @return The MIME type or null if this is unknown
*/
public String getFileExtension(){ return sFileExtension; }
/**
* Method to return the MIME type of the document.
*
* @return String The document's MIME type.
*/
public String getDocumentMIMEType(){ return sMimeType; }
public String getMIMEType() {
return sMimeType;
}
public boolean isMasterDocument() {
/** Is this document a master document?
*
* @return false - a graphics file is never a master document
*/
public boolean isMasterDocument() {
return false;
}
}