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javax.swing.text.html
Class HTMLWriter


java.lang.Object
  extended by javax.swing.text.AbstractWriter
      extended by javax.swing.text.html.HTMLWriter

public class HTMLWriter
extends AbstractWriter

This is a writer for HTMLDocuments.

Field Summary
 
Fields inherited from class javax.swing.text. AbstractWriter
NEWLINE
 
Constructor Summary
HTMLWriter ( Writer  w, HTMLDocument  doc)
          Creates a new HTMLWriter.
HTMLWriter ( Writer  w, HTMLDocument  doc, int pos, int len)
          Creates a new HTMLWriter.
 
Method Summary
protected  void closeOutUnwantedEmbeddedTags ( AttributeSet  attr)
          Searches the attribute set and for each tag that is stored in the tag vector.
protected  void comment ( Element  elem)
          Writes out comments.
protected  void emptyTag ( Element  elem)
          Writes out all empty elements (all tags that have no corresponding end tag).
protected  void endTag ( Element  elem)
          Writes out an end tag for the element.
protected  boolean isBlockTag ( AttributeSet  attr)
          Determines if the HTML.Tag associated with the element is a block tag.
protected  boolean matchNameAttribute ( AttributeSet  attr, HTML.Tag  tag)
          Returns true if the StyleConstants.NameAttribute is equal to the tag that is passed in as a parameter.
protected  void output (char[] chars, int start, int length)
          This method is overriden to map any character entities, such as < to &lt;.
protected  void selectContent ( AttributeSet  attr)
          Writes out the content of the SELECT form element.
protected  void startTag ( Element  elem)
          Writes out a start tag for the element.
protected  boolean synthesizedElement ( Element  elem)
          Returns true if the element is a synthesized element.
protected  void text ( Element  elem)
          Writes out text.
protected  void textAreaContent ( AttributeSet  attr)
          Writes out text that is contained in a TEXTAREA form element.
 void write ()
          Iterates over the Element tree and controls the writing out of all the tags and its attributes.
protected  void writeAttributes ( AttributeSet  attr)
          Writes out the attribute set.
protected  void writeEmbeddedTags ( AttributeSet  attr)
          Searches for embedded tags in the AttributeSet and writes them out.
protected  void writeLineSeparator ()
          Writes the line separator.
protected  void writeOption ( Option  option)
          Writes out the content of the Option form element.
 
Methods inherited from class javax.swing.text. AbstractWriter
decrIndent , getCanWrapLines , getCurrentLineLength , getDocument , getElementIterator , getEndOffset , getIndentLevel , getIndentSpace , getLineLength , getLineSeparator , getStartOffset , getText , getWriter , incrIndent , indent , inRange , isLineEmpty , setCanWrapLines , setCurrentLineLength , setIndentSpace , setLineLength , setLineSeparator , write , write , write
 
Methods inherited from class java.lang. Object
clone , equals , finalize , getClass , hashCode , notify , notifyAll , toString , wait , wait , wait
 

Constructor Detail

HTMLWriter


public HTMLWriter(Writer w,
                  HTMLDocument doc)
Creates a new HTMLWriter.

Parameters:
w - a Writer
doc - an HTMLDocument

HTMLWriter


public HTMLWriter(Writer w,
                  HTMLDocument doc,
                  int pos,
                  int len)
Creates a new HTMLWriter.

Parameters:
w - a Writer
doc - an HTMLDocument
pos - the document location from which to fetch the content
len - the amount to write out
Method Detail

write


public void write()
           throws IOException,
                  BadLocationException
Iterates over the Element tree and controls the writing out of all the tags and its attributes.

Specified by:
write in class AbstractWriter
Throws:
IOException - on any I/O error
BadLocationException - if pos represents an invalid location within the document.

writeAttributes


protected void writeAttributes(AttributeSet attr)
                        throws IOException
Writes out the attribute set. Ignores all attributes with a key of type HTML.Tag, attributes with a key of type StyleConstants, and attributes with a key of type HTML.Attribute.ENDTAG.

Overrides:
writeAttributes in class AbstractWriter
Parameters:
attr - an AttributeSet
Throws:
IOException - on any I/O error

emptyTag


protected void emptyTag(Element elem)
                 throws BadLocationException,
                        IOException
Writes out all empty elements (all tags that have no corresponding end tag).

Parameters:
elem - an Element
Throws:
IOException - on any I/O error
BadLocationException - if pos represents an invalid location within the document.

isBlockTag


protected boolean isBlockTag(AttributeSet attr)
Determines if the HTML.Tag associated with the element is a block tag.

Parameters:
attr - an AttributeSet
Returns:
true if tag is block tag, false otherwise.

startTag


protected void startTag(Element elem)
                 throws IOException,
                        BadLocationException
Writes out a start tag for the element. Ignores all synthesized elements.

Parameters:
elem - an Element
Throws:
IOException - on any I/O error
BadLocationException

textAreaContent


protected void textAreaContent(AttributeSet attr)
                        throws BadLocationException,
                               IOException
Writes out text that is contained in a TEXTAREA form element.

Parameters:
attr - an AttributeSet
Throws:
IOException - on any I/O error
BadLocationException - if pos represents an invalid location within the document.

text


protected void text(Element elem)
             throws BadLocationException,
                    IOException
Writes out text. If a range is specified when the constructor is invoked, then only the appropriate range of text is written out.

Overrides:
text in class AbstractWriter
Parameters:
elem - an Element
Throws:
IOException - on any I/O error
BadLocationException - if pos represents an invalid location within the document.

selectContent


protected void selectContent(AttributeSet attr)
                      throws IOException
Writes out the content of the SELECT form element.

Parameters:
attr - the AttributeSet associated with the form element
Throws:
IOException - on any I/O error

writeOption


protected void writeOption(Option option)
                    throws IOException
Writes out the content of the Option form element.

Parameters:
option - an Option
Throws:
IOException - on any I/O error

endTag


protected void endTag(Element elem)
               throws IOException
Writes out an end tag for the element.

Parameters:
elem - an Element
Throws:
IOException - on any I/O error

comment


protected void comment(Element elem)
                throws BadLocationException,
                       IOException
Writes out comments.

Parameters:
elem - an Element
Throws:
IOException - on any I/O error
BadLocationException - if pos represents an invalid location within the document.

synthesizedElement


protected boolean synthesizedElement(Element elem)
Returns true if the element is a synthesized element. Currently we are only testing for the p-implied tag.

matchNameAttribute


protected boolean matchNameAttribute(AttributeSet attr,
                                     HTML.Tag tag)
Returns true if the StyleConstants.NameAttribute is equal to the tag that is passed in as a parameter.

writeEmbeddedTags


protected void writeEmbeddedTags(AttributeSet attr)
                          throws IOException
Searches for embedded tags in the AttributeSet and writes them out. It also stores these tags in a vector so that when appropriate the corresponding end tags can be written out.

Throws:
IOException - on any I/O error

closeOutUnwantedEmbeddedTags


protected void closeOutUnwantedEmbeddedTags(AttributeSet attr)
                                     throws IOException
Searches the attribute set and for each tag that is stored in the tag vector. If the tag isnt found, then the tag is removed from the vector and a corresponding end tag is written out.

Throws:
IOException - on any I/O error

writeLineSeparator


protected void writeLineSeparator()
                           throws IOException
Writes the line separator. This is overriden to make sure we don't replace the newline content in case it is outside normal ascii.

Overrides:
writeLineSeparator in class AbstractWriter
Throws:
IOException
Since:
1.3

output


protected void output(char[] chars,
                      int start,
                      int length)
               throws IOException
This method is overriden to map any character entities, such as < to &lt;. super.output will be invoked to write the content.

Overrides:
output in class AbstractWriter
Throws:
IOException
Since:
1.3