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Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class HTMLWriter - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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javax.swing.text.html
Class HTMLWriter

java.lang.Object
  |
  +--javax.swing.text.AbstractWriter
        |
        +--javax.swing.text.html.HTMLWriter

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public class HTMLWriter

extends AbstractWriter

This is a writer for HTMLDocuments.

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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)           This method 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	decrIndent()           Decrements the indent level.
protected  void	emptyTag(Element elem)           Writes out all empty elements i.e tags that have no corresponding end tag.
protected  void	endTag(Element elem)           Writes out an end tag for the element.
protected  void	incrIndent()           Increments the indent level.
protected  void	indent()           Does indentation.
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)           This method return true if the StyleConstants.NameAttribute is equal to the tag that is passed in as a parameter.
protected  void	selectContent(AttributeSet attr)           Writes out the content of the SELECT form element.
protected  void	setIndentSpace(int space)           Enables subclasses to specify how many spaces an indent maps to.
protected  void	setLineLength(int l)           Enables subclasses to set the number of characters they want written per line.
protected  void	startTag(Element elem)           Writes out a start tag for the element.
protected  boolean	synthesizedElement(Element elem)           This method 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()           This is method that iterates over the the Element tree and controls the writing out of all the tags and its attributes.
protected  void	write(char ch)           Conveneice method for write(char, false).
protected  void	write(String content)           Convenience method for write(String, false).
protected  void	writeAttributes(AttributeSet attr)           Writes out the attribute set.
protected  void	writeEmbeddedTags(AttributeSet attr)           This method searches for embedded tags in the AttributeSet and writes them out.
protected  void	writeOption(Option option)           Writes out the content of the Option form element.

 

Methods inherited from class javax.swing.text.AbstractWriter

getDocument, getElementIterator, getText, inRange

 

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:

a - Writer

an - HTMLDocument

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HTMLWriter

public HTMLWriter(Writer w,
                  HTMLDocument doc,
                  int pos,
                  int len)

Creates a new HTMLWriter.

Parameters:

a - Writer

an - HTMLDocument

pos - The location in the document to fetch the content.

len - The amount to write out.

Method Detail

write

public void write()
           throws IOException,
                  BadLocationException

This is method that iterates over the the Element tree and controls the writing out of all the tags and its attributes.

Overrides:

write in class AbstractWriter

Throws:

IOException - on any I/O error

BadLocationException - if pos represents an invalid location within the document.

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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:

an - AttributeSet.

Throws:

IOException - on any I/O error

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emptyTag

protected void emptyTag(Element elem)
                 throws BadLocationException,
                        IOException

Writes out all empty elements i.e tags that have no corresponding end tag.

Parameters:

an - Element.

Throws:

IOException - on any I/O error

BadLocationException - if pos represents an invalid location within the document.

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isBlockTag

protected boolean isBlockTag(AttributeSet attr)

Determines if the HTML.Tag associated with the element is a block tag.

Parameters:

AttributeSet. -  

Returns:

true if tag is block tag, false otherwise.

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startTag

protected void startTag(Element elem)
                 throws IOException,
                        BadLocationException

Writes out a start tag for the element. Ignores all synthesized elements.

Parameters:

an - Element.

Throws:

IOException - on any I/O error

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textAreaContent

protected void textAreaContent(AttributeSet attr)
                        throws BadLocationException,
                               IOException

Writes out text that is contained in a TEXTAREA form element.

Parameters:

AttributeSet -  

Throws:

IOException - on any I/O error

BadLocationException - if pos represents an invalid location within the document.

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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:

an - Element.

Throws:

IOException - on any I/O error

BadLocationException - if pos represents an invalid location within the document.

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selectContent

protected void selectContent(AttributeSet attr)
                      throws IOException

Writes out the content of the SELECT form element.

Parameters:

AttributeSet - associcated with the form element.

Throws:

IOException - on any I/O error

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writeOption

protected void writeOption(Option option)
                    throws IOException

Writes out the content of the Option form element.

Parameters:

Option. -  

Throws:

IOException - on any I/O error

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endTag

protected void endTag(Element elem)
               throws IOException

Writes out an end tag for the element.

Parameters:

an - Element.

Throws:

IOException - on any I/O error

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comment

protected void comment(Element elem)
                throws BadLocationException,
                       IOException

Writes out comments.

Parameters:

an - element.

Throws:

IOException - on any I/O error

BadLocationException - if pos represents an invalid location within the document.

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synthesizedElement

protected boolean synthesizedElement(Element elem)

This method returns true, if the element is a synthesized element. Currently we are only testing for the p-implied tag.

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matchNameAttribute

protected boolean matchNameAttribute(AttributeSet attr,
                                     HTML.Tag tag)

This method return true if the StyleConstants.NameAttribute is equal to the tag that is passed in as a parameter.

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writeEmbeddedTags

protected void writeEmbeddedTags(AttributeSet attr)
                          throws IOException

This method 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

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closeOutUnwantedEmbeddedTags

protected void closeOutUnwantedEmbeddedTags(AttributeSet attr)
                                     throws IOException

This method 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

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setIndentSpace

protected void setIndentSpace(int space)

Enables subclasses to specify how many spaces an indent maps to. When indentation takes place, the indent level is multiplied by this mapping. The default is 2.

Overrides:

setIndentSpace in class AbstractWriter

Parameters:

an - int representing the space to indent mapping.

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incrIndent

protected void incrIndent()

Increments the indent level.

Overrides:

incrIndent in class AbstractWriter

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decrIndent

protected void decrIndent()

Decrements the indent level.

Overrides:

decrIndent in class AbstractWriter

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setLineLength

protected void setLineLength(int l)

Enables subclasses to set the number of characters they want written per line. The default is 100.

Overrides:

setLineLength in class AbstractWriter

Parameters:

the - maximum line length.

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write

protected void write(char ch)
              throws IOException

Conveneice method for write(char, false).

Overrides:

write in class AbstractWriter

Tags copied from class: AbstractWriter

Parameters:

a - char.

Throws:

IOException - on any I/O error

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write

protected void write(String content)
              throws IOException

Convenience method for write(String, false).

Overrides:

write in class AbstractWriter

Tags copied from class: AbstractWriter

Parameters:

a - String.

Throws:

IOException - on any I/O error

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indent

protected void indent()
               throws IOException

Does indentation. The number of spaces written out is indent level times the space to map mapping.

Overrides:

indent in class AbstractWriter

Throws:

IOException - on any I/O error

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