MinimalHTMLWriter (Java Platform SE 8 )

java.lang.Object
- javax.swing.text.AbstractWriter
- - javax.swing.text.html.MinimalHTMLWriter

public class MinimalHTMLWriter
extends AbstractWriter

MinimalHTMLWriter is a fallback writer used by the HTMLEditorKit to write out HTML for a document that is a not produced by the EditorKit. The format for the document is:

 <html>
   <head>
     <style>
        <!-- list of named styles
         p.normal {
            font-family: SansSerif;
            margin-height: 0;
            font-size: 14
         }
        -->
      </style>
   </head>
   <body>
    <p style=normal>
        Bold, italic, and underline attributes
        of the run are emitted as HTML tags.
        The remaining attributes are emitted as
        part of the style attribute of a <span> tag.
        The syntax is similar to inline styles.
    </p>
   </body>
 </html>

Field Summary
- Fields inherited from class javax.swing.text.AbstractWriter
  NEWLINE

Constructor Summary

Constructors
Constructor and Description
`MinimalHTMLWriter(Writer w, StyledDocument doc)` Creates a new MinimalHTMLWriter.
`MinimalHTMLWriter(Writer w, StyledDocument doc, int pos, int len)` Creates a new MinimalHTMLWriter.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected void`	`endFontTag()` This is no longer used, instead <span> will be written out.
`protected boolean`	`inFontTag()` Returns true if we are currently in a <font> tag.
`protected boolean`	`isText(Element elem)` Returns true if the element is a text element.
`protected void`	`startFontTag(String style)` This is no longer used, instead <span> will be written out.
`protected void`	`text(Element elem)` Writes out text.
`void`	`write()` Generates HTML output from a StyledDocument.
`protected void`	`writeAttributes(AttributeSet attr)` Writes out all the attributes for the following types: StyleConstants.ParagraphConstants, StyleConstants.CharacterConstants, StyleConstants.FontConstants, StyleConstants.ColorConstants.
`protected void`	`writeBody()` Iterates over the elements in the document and processes elements based on whether they are branch elements or leaf elements.
`protected void`	`writeComponent(Element elem)` Responsible for handling Component Elements; deliberately unimplemented.
`protected void`	`writeContent(Element elem, boolean needsIndenting)` Writes out the attribute set in an HTML-compliant manner.
`protected void`	`writeEndParagraph()` Emits an end tag for a <p> tag.
`protected void`	`writeEndTag(String endTag)` Writes out an end tag appropriately indented.
`protected void`	`writeHeader()` Writes out the <head> and <style> tags, and then invokes writeStyles() to write out all the named styles as the content of the <style> tag.
`protected void`	`writeHTMLTags(AttributeSet attr)` Generates bold <b>, italic <i>, and <u> tags for the text based on its attribute settings.
`protected void`	`writeImage(Element elem)` Responsible for handling Icon Elements; deliberately unimplemented.
`protected void`	`writeLeaf(Element elem)` Responsible for writing out other non-text leaf elements.
`protected void`	`writeNonHTMLAttributes(AttributeSet attr)` Writes out the remaining character-level attributes (attributes other than bold, italic, and underline) in an HTML-compliant way.
`protected void`	`writeStartParagraph(Element elem)` Emits the start tag for a paragraph.
`protected void`	`writeStartTag(String tag)` Writes out a start tag appropriately indented.
`protected void`	`writeStyles()` Writes out all the named styles as the content of the <style> tag.

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, output, setCanWrapLines, setCurrentLineLength, setIndentSpace, setLineLength, setLineSeparator, write, write, write, writeLineSeparator

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - MinimalHTMLWriter
```
public MinimalHTMLWriter(Writer w,
                         StyledDocument doc)
```
    Creates a new MinimalHTMLWriter.
    
    Parameters:
    
    w - Writer
    
    doc - StyledDocument
  - MinimalHTMLWriter
```
public MinimalHTMLWriter(Writer w,
                         StyledDocument doc,
                         int pos,
                         int len)
```
    Creates a new MinimalHTMLWriter.
    
    Parameters:
    
    w - Writer
    
    doc - StyledDocument
    
    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
```
    Generates HTML output from a StyledDocument.
    
    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 all the attributes for the following types: StyleConstants.ParagraphConstants, StyleConstants.CharacterConstants, StyleConstants.FontConstants, StyleConstants.ColorConstants. The attribute name and value are separated by a colon. Each pair is separated by a semicolon.
    
    Overrides:
    
    writeAttributes in class AbstractWriter
    
    Parameters:
    
    attr - an AttributeSet.
    
    Throws:
    
    IOException - on any I/O error
  - text
```
protected void text(Element elem)
             throws IOException,
                    BadLocationException
```
    Writes out text.
    
    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.
  - writeStartTag
```
protected void writeStartTag(String tag)
                      throws IOException
```
    Writes out a start tag appropriately indented. Also increments the indent level.
    
    Throws:
    
    IOException - on any I/O error
  - writeEndTag
```
protected void writeEndTag(String endTag)
                    throws IOException
```
    Writes out an end tag appropriately indented. Also decrements the indent level.
    
    Throws:
    
    IOException - on any I/O error
  - writeHeader
```
protected void writeHeader()
                    throws IOException
```
    Writes out the <head> and <style> tags, and then invokes writeStyles() to write out all the named styles as the content of the <style> tag. The content is surrounded by valid HTML comment markers to ensure that the document is viewable in applications/browsers that do not support the tag.
    
    Throws:
    
    IOException - on any I/O error
  - writeStyles
```
protected void writeStyles()
                    throws IOException
```
    Writes out all the named styles as the content of the <style> tag.
    
    Throws:
    
    IOException - on any I/O error
  - writeBody
```
protected void writeBody()
                  throws IOException,
                         BadLocationException
```
    Iterates over the elements in the document and processes elements based on whether they are branch elements or leaf elements. This method specially handles leaf elements that are text.
    
    Throws:
    
    IOException - on any I/O error
    
    BadLocationException
  - writeEndParagraph
```
protected void writeEndParagraph()
                          throws IOException
```
    Emits an end tag for a <p> tag. Before writing out the tag, this method ensures that all other tags that have been opened are appropriately closed off.
    
    Throws:
    
    IOException - on any I/O error
  - writeStartParagraph
```
protected void writeStartParagraph(Element elem)
                            throws IOException
```
    Emits the start tag for a paragraph. If the paragraph has a named style associated with it, then this method also generates a class attribute for the <p> tag and sets its value to be the name of the style.
    
    Throws:
    
    IOException - on any I/O error
  - writeLeaf
```
protected void writeLeaf(Element elem)
                  throws IOException
```
    Responsible for writing out other non-text leaf elements.
    
    Throws:
    
    IOException - on any I/O error
  - writeImage
```
protected void writeImage(Element elem)
                   throws IOException
```
    Responsible for handling Icon Elements; deliberately unimplemented. How to implement this method is an issue of policy. For example, if you're generating an <img> tag, how should you represent the src attribute (the location of the image)? In certain cases it could be a URL, in others it could be read from a stream.
    
    Parameters:
    
    elem - element of type StyleConstants.IconElementName
    
    Throws:
    
    IOException
  - writeComponent
```
protected void writeComponent(Element elem)
                       throws IOException
```
    Responsible for handling Component Elements; deliberately unimplemented. How this method is implemented is a matter of policy.
    
    Throws:
    
    IOException
  - isText
```
protected boolean isText(Element elem)
```
    Returns true if the element is a text element.
  - writeContent
```
protected void writeContent(Element elem,
                            boolean needsIndenting)
                     throws IOException,
                            BadLocationException
```
    Writes out the attribute set in an HTML-compliant manner.
    
    Throws:
    
    IOException - on any I/O error
    
    BadLocationException - if pos represents an invalid location within the document.
  - writeHTMLTags
```
protected void writeHTMLTags(AttributeSet attr)
                      throws IOException
```
    Generates bold <b>, italic <i>, and <u> tags for the text based on its attribute settings.
    
    Throws:
    
    IOException - on any I/O error
  - writeNonHTMLAttributes
```
protected void writeNonHTMLAttributes(AttributeSet attr)
                               throws IOException
```
    Writes out the remaining character-level attributes (attributes other than bold, italic, and underline) in an HTML-compliant way. Given that attributes such as font family and font size have no direct mapping to HTML tags, a <span> tag is generated and its style attribute is set to contain the list of remaining attributes just like inline styles.
    
    Throws:
    
    IOException - on any I/O error
  - inFontTag
```
protected boolean inFontTag()
```
    Returns true if we are currently in a <font> tag.
  - endFontTag
```
protected void endFontTag()
                   throws IOException
```
    This is no longer used, instead <span> will be written out.
    Writes out an end tag for the <font> tag.
    
    Throws:
    
    IOException - on any I/O error
  - startFontTag
```
protected void startFontTag(String style)
                     throws IOException
```
    This is no longer used, instead <span> will be written out.
    Writes out a start tag for the <font> tag. Because font tags cannot be nested, this method closes out any enclosing font tag before writing out a new start tag.
    
    Throws:
    
    IOException - on any I/O error

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Class MinimalHTMLWriter

Field Summary

Fields inherited from class javax.swing.text.AbstractWriter

Constructor Summary

Method Summary

Methods inherited from class javax.swing.text.AbstractWriter

Methods inherited from class java.lang.Object

Constructor Detail

MinimalHTMLWriter

MinimalHTMLWriter

Method Detail

write

writeAttributes

text

writeStartTag

writeEndTag

writeHeader

writeStyles

writeBody

writeEndParagraph

writeStartParagraph

writeLeaf

writeImage

writeComponent

isText

writeContent

writeHTMLTags

writeNonHTMLAttributes

inFontTag

endFontTag

startFontTag