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> NEWLINE public MinimalHTMLWriter(Writer w,
StyledDocument doc) Creates a new MinimalHTMLWriter.
w - Writerdoc - StyledDocumentpublic MinimalHTMLWriter(Writer w,
StyledDocument doc,
int pos,
int len) Creates a new MinimalHTMLWriter.
w - Writerdoc - StyledDocumentpos - The location in the document to fetch the content.len - The amount to write out.public void write()
throws IOException,
BadLocationException Generates HTML output from a StyledDocument.
write in class AbstractWriter
IOException - on any I/O errorBadLocationException - if pos represents an invalid location within the document.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.
writeAttributes in class AbstractWriter
attr - an AttributeSet.IOException - on any I/O errorprotected void text(Element elem)
throws IOException,
BadLocationException Writes out text.
text in class AbstractWriter
elem - an Element.IOException - on any I/O errorBadLocationException - if pos represents an invalid location within the document.protected void writeStartTag(String tag)
throws IOException Writes out a start tag appropriately indented. Also increments the indent level.
IOException - on any I/O errorprotected void writeEndTag(String endTag)
throws IOException Writes out an end tag appropriately indented. Also decrements the indent level.
IOException - on any I/O errorprotected 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.
IOException - on any I/O errorprotected void writeStyles()
throws IOException Writes out all the named styles as the content of the <style> tag.
IOException - on any I/O errorprotected 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.
IOException - on any I/O errorBadLocationExceptionprotected 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.
IOException - on any I/O errorprotected 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.
IOException - on any I/O errorprotected void writeLeaf(Element elem)
throws IOException Responsible for writing out other non-text leaf elements.
IOException - on any I/O errorprotected 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.
elem - element of type StyleConstants.IconElementNameIOExceptionprotected void writeComponent(Element elem)
throws IOException Responsible for handling Component Elements; deliberately unimplemented. How this method is implemented is a matter of policy.
IOExceptionprotected boolean isText(Element elem)
Returns true if the element is a text element.
protected void writeContent(Element elem,
boolean needsIndenting)
throws IOException,
BadLocationException Writes out the attribute set in an HTML-compliant manner.
IOException - on any I/O errorBadLocationException - if pos represents an invalid location within the document.protected void writeHTMLTags(AttributeSet attr)
throws IOException Generates bold <b>, italic <i>, and <u> tags for the text based on its attribute settings.
IOException - on any I/O errorprotected 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.
IOException - on any I/O errorprotected boolean inFontTag()
Returns true if we are currently in a <font> tag.
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.
IOException - on any I/O errorprotected 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.
IOException - on any I/O error
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