weka.gui.scripting

Class SyntaxDocument

java.lang.Object

javax.swing.text.AbstractDocument

javax.swing.text.DefaultStyledDocument

weka.gui.scripting.SyntaxDocument

All Implemented Interfaces:

Serializable, Document, StyledDocument

public class SyntaxDocument
extends DefaultStyledDocument

Highlights syntax in a DefaultStyledDocument. Allows any number of keywords to be formatted in any number of user-defined styles.

Author:

camickr (primary author; java sun forums user), David Underhill, FracPete (fracpete at waikato dot ac dot nz) - use of a properties file to setup syntax highlighting instead of hard-coded

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SyntaxDocument.ATTR_TYPE The attribute type.

Nested classes/interfaces inherited from class javax.swing.text.DefaultStyledDocument

DefaultStyledDocument.AttributeUndoableEdit, DefaultStyledDocument.ElementBuffer, DefaultStyledDocument.ElementSpec

Nested classes/interfaces inherited from class javax.swing.text.AbstractDocument

AbstractDocument.AbstractElement, AbstractDocument.AttributeContext, AbstractDocument.BranchElement, AbstractDocument.Content, AbstractDocument.DefaultDocumentEvent, AbstractDocument.ElementEdit, AbstractDocument.LeafElement

Field Summary

Fields

Modifier and Type	Field and Description
static SimpleAttributeSet	DEFAULT_COMMENT the attribute set for comments.
static String	DEFAULT_FONT_FAMILY the font family.
static int	DEFAULT_FONT_SIZE the font size.
static SimpleAttributeSet	DEFAULT_KEYWORD the attribute set for keywords.
static SimpleAttributeSet	DEFAULT_NORMAL the attribute set for normal code.
static SimpleAttributeSet	DEFAULT_STRING the attribute set for strings.
static int	MAX_TABS the maximum number of tabs.

Fields inherited from class javax.swing.text.DefaultStyledDocument

BUFFER_SIZE_DEFAULT

Fields inherited from class javax.swing.text.AbstractDocument

BidiElementName, ContentElementName, ElementNameAttribute, ParagraphElementName, SectionElementName

Fields inherited from interface javax.swing.text.Document

StreamDescriptionProperty, TitleProperty

Constructor Summary

Constructors

Constructor and Description
SyntaxDocument(Properties props) Initializes the document.

Method Summary

Methods

Modifier and Type	Method and Description
void	addKeyword(String keyword, MutableAttributeSet attr) Associates a keyword with a particular formatting style.
void	addKeywords(String[] keywords, MutableAttributeSet attr) Associates the keywords with a particular formatting style.
String	escapeQuote(String quoteDelimiter) Escapes the quote delimiter.
boolean	getAddMatchingEndBlocks() Returns whether matching block ends are inserted or not.
Color	getBackgroundColor() Returns the background color.
String	getBlockEnd() Returns the end of a block.
String	getBlockStart() Returns the start of a block.
boolean	getCaseSensitive() Returns whether blanks are used instead of tabs.
String	getDelimiters() Returns the delimiter characters to use.
String	getFontName() gets the current font family.
int	getFontSize() gets the current font size.
int	getIndentationSize() Returns the number of blanks used for indentation.
MutableAttributeSet	getKeywordFormatting(String keyword) Gets the formatting for a keyword.
boolean	getMultiLineComment() Returns whether multi-line comments are enabled.
String	getMultiLineCommentEnd() Returns the end of a multi-line comment.
String	getMultiLineCommentStart() Returns the string that is the start of a multi-line comment.
String	getQuoteDelimiters() Returns the quote delimiter characters to use.
String	getQuoteEscape() Returns the character for escaping a quote delimiter.
String	getSingleLineCommentStart() Retrusn the single line comment start string.
boolean	getUseBlanks() Returns whether blanks are used instead of tabs.
void	insertString(int offset, String str, AttributeSet a) Override to apply syntax highlighting after the document has been updated.
boolean	isDelimiter(String character) Checks whether the character is a delimiter.
boolean	isQuoteDelimiter(String character) Checks whether the character is quote delimiter.
void	processChangedLines(int offset, int length) Determine how many lines have been changed, then apply highlighting to each line.
void	remove(int offset, int length) Applies syntax highlighting after the document has been updated.
void	removeKeyword(String keyword) Removes an association between a keyword with a particular formatting style.
void	setAddMatchingEndBlocks(boolean value) Sets whether matching block ends are inserted or not.
static void	setAttributeColor(MutableAttributeSet attr, Color c) Sets the foreground (font) color of the specified attribute.
void	setAttributeColor(SyntaxDocument.ATTR_TYPE attr, Color c) Sets the foreground (font) color of the specified attribute.
static void	setAttributeFont(MutableAttributeSet attr, Font f) Sets the font of the specified attribute.
void	setAttributeFont(SyntaxDocument.ATTR_TYPE attr, int style) Sets the font of the specified attribute.
void	setBackgroundColor(Color value) Sets the background color.
void	setBlockEnd(String value) Sets the string that is the end of a block.
void	setBlockStart(String value) Sets the string that is the start of a block.
void	setCaseSensitive(boolean value) Sets whether the keywords are case-sensitive or not.
void	setDelimiters(String value) Sets the delimiter characters to use.
void	setFontName(String fontName) sets the current font family (affects all built-in styles).
void	setFontSize(int fontSize) sets the current font size (affects all built-in styles).
void	setIndentationSize(int value) Sets the number of blanks to use for indentation.
void	setMultiLineComment(boolean value) Sets whether to enable multi-line comments.
void	setMultiLineCommentEnd(String value) Sets the string that is the end of a multi-line comment.
void	setMultiLineCommentStart(String value) Sets the string that is the start of a multi-line comment.
void	setQuoteDelimiters(String value) Sets the quote delimiter characters to use.
void	setQuoteEscape(String value) Sets the character to use for escaping a quote character.
void	setSingleLineCommentStart(String value) Sets the string that is the start of a single-line comment.
void	setTabs(int charactersPerTab) sets the number of characters per tab.
void	setUseBlanks(boolean value) Sets whether to use blanks instead of tabs.

Methods inherited from class javax.swing.text.DefaultStyledDocument

addDocumentListener, addStyle, getBackground, getCharacterElement, getDefaultRootElement, getFont, getForeground, getLogicalStyle, getParagraphElement, getStyle, getStyleNames, removeDocumentListener, removeElement, removeStyle, setCharacterAttributes, setLogicalStyle, setParagraphAttributes

Methods inherited from class javax.swing.text.AbstractDocument

addUndoableEditListener, createPosition, dump, getAsynchronousLoadPriority, getBidiRootElement, getDocumentFilter, getDocumentListeners, getDocumentProperties, getEndPosition, getLength, getListeners, getProperty, getRootElements, getStartPosition, getText, getText, getUndoableEditListeners, putProperty, readLock, readUnlock, removeUndoableEditListener, render, replace, setAsynchronousLoadPriority, setDocumentFilter, setDocumentProperties

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface javax.swing.text.Document

addUndoableEditListener, createPosition, getEndPosition, getLength, getProperty, getRootElements, getStartPosition, getText, getText, putProperty, removeUndoableEditListener, render

Field Detail

MAX_TABS

public static final int MAX_TABS

the maximum number of tabs.

See Also:

Constant Field Values

DEFAULT_FONT_FAMILY

public static final String DEFAULT_FONT_FAMILY

the font family.

See Also:

Constant Field Values

DEFAULT_FONT_SIZE

public static final int DEFAULT_FONT_SIZE

the font size.

See Also:

Constant Field Values

DEFAULT_NORMAL

public static final SimpleAttributeSet DEFAULT_NORMAL

the attribute set for normal code.

DEFAULT_COMMENT

public static final SimpleAttributeSet DEFAULT_COMMENT

the attribute set for comments.

DEFAULT_STRING

public static final SimpleAttributeSet DEFAULT_STRING

the attribute set for strings.

DEFAULT_KEYWORD

public static final SimpleAttributeSet DEFAULT_KEYWORD

the attribute set for keywords.

Constructor Detail

SyntaxDocument

public SyntaxDocument(Properties props)

Initializes the document.

Parameters:

props - the properties to obtain the setup from

Method Detail

setAttributeFont

public void setAttributeFont(SyntaxDocument.ATTR_TYPE attr,
                    int style)

Sets the font of the specified attribute.

Parameters:

attr - the attribute to apply this font to (normal, comment, string)

style - font style (Font.BOLD, Font.ITALIC, Font.PLAIN)

setAttributeFont

public static void setAttributeFont(MutableAttributeSet attr,
                    Font f)

Sets the font of the specified attribute.

Parameters:

attr - attribute to apply this font to

f - the font to use

setAttributeColor

public void setAttributeColor(SyntaxDocument.ATTR_TYPE attr,
                     Color c)

Sets the foreground (font) color of the specified attribute.

Parameters:

attr - the attribute to apply this font to (normal, comment, string)

c - the color to use

setAttributeColor

public static void setAttributeColor(MutableAttributeSet attr,
                     Color c)

Sets the foreground (font) color of the specified attribute.

Parameters:

attr - attribute to apply this color to

c - the color to use

addKeywords

public void addKeywords(String[] keywords,
               MutableAttributeSet attr)

Associates the keywords with a particular formatting style.

Parameters:

keywords - the tokens or words to format

attr - how to format the keywords

addKeyword

public void addKeyword(String keyword,
              MutableAttributeSet attr)

Associates a keyword with a particular formatting style.

Parameters:

keyword - the token or word to format

attr - how to format keyword

getKeywordFormatting

public MutableAttributeSet getKeywordFormatting(String keyword)

Gets the formatting for a keyword.

Parameters:

keyword - the token or word to stop formatting

Returns:

how keyword is formatted, or null if no formatting is applied to it

removeKeyword

public void removeKeyword(String keyword)

Removes an association between a keyword with a particular formatting style.

Parameters:

keyword - the token or word to stop formatting

setTabs

public void setTabs(int charactersPerTab)

sets the number of characters per tab.

Parameters:

charactersPerTab - the characters per tab

insertString

public void insertString(int offset,
                String str,
                AttributeSet a)
                  throws BadLocationException

Override to apply syntax highlighting after the document has been updated.

Specified by:

insertString in interface Document

Overrides:

insertString in class AbstractDocument

Parameters:

offset - the offset

str - the string to insert

a - the attribute set, can be null

Throws:

BadLocationException - if offset is invalid

remove

public void remove(int offset,
          int length)
            throws BadLocationException

Applies syntax highlighting after the document has been updated.

Specified by:

remove in interface Document

Overrides:

remove in class AbstractDocument

Parameters:

offset - the offset of the deletion

length - the length of the deletion

Throws:

BadLocationException - if offsets are invalid

processChangedLines

public void processChangedLines(int offset,
                       int length)
                         throws BadLocationException

Determine how many lines have been changed, then apply highlighting to each line.

Parameters:

offset - the offset of the changed lines

length - the length of the change

Throws:

BadLocationException - if offset is invalid

isDelimiter

public boolean isDelimiter(String character)

Checks whether the character is a delimiter.

Parameters:

character - the character to check

Returns:

true if a delimiter

isQuoteDelimiter

public boolean isQuoteDelimiter(String character)

Checks whether the character is quote delimiter.

Parameters:

character - the character to check

Returns:

true if a quote delimiter

escapeQuote

public String escapeQuote(String quoteDelimiter)

Escapes the quote delimiter.

Parameters:

quoteDelimiter - the string to escape

Returns:

the escaped string

getFontSize

public int getFontSize()

gets the current font size.

Returns:

the font size

setFontSize

public void setFontSize(int fontSize)

sets the current font size (affects all built-in styles).

Parameters:

fontSize - the size

getFontName

public String getFontName()

gets the current font family.

Returns:

the font name

setFontName

public void setFontName(String fontName)

sets the current font family (affects all built-in styles).

Parameters:

fontName - the font name

setIndentationSize

public void setIndentationSize(int value)

Sets the number of blanks to use for indentation.

Parameters:

value - the number of blanks

getIndentationSize

public int getIndentationSize()

Returns the number of blanks used for indentation.

Returns:

the number of blanks

setDelimiters

public void setDelimiters(String value)

Sets the delimiter characters to use.

Parameters:

value - the characters

getDelimiters

public String getDelimiters()

Returns the delimiter characters to use.

Returns:

the characters

setQuoteDelimiters

public void setQuoteDelimiters(String value)

Sets the quote delimiter characters to use.

Parameters:

value - the characters

getQuoteDelimiters

public String getQuoteDelimiters()

Returns the quote delimiter characters to use.

Returns:

the characters

setQuoteEscape

public void setQuoteEscape(String value)

Sets the character to use for escaping a quote character.

Parameters:

value - the character

getQuoteEscape

public String getQuoteEscape()

Returns the character for escaping a quote delimiter.

Returns:

the character

setSingleLineCommentStart

public void setSingleLineCommentStart(String value)

Sets the string that is the start of a single-line comment.

Parameters:

value - the string

getSingleLineCommentStart

public String getSingleLineCommentStart()

Retrusn the single line comment start string.

Returns:

the start string

setMultiLineCommentStart

public void setMultiLineCommentStart(String value)

Sets the string that is the start of a multi-line comment.

Parameters:

value - the string

getMultiLineCommentStart

public String getMultiLineCommentStart()

Returns the string that is the start of a multi-line comment.

Returns:

the string

setMultiLineCommentEnd

public void setMultiLineCommentEnd(String value)

Sets the string that is the end of a multi-line comment.

Parameters:

value - the string

getMultiLineCommentEnd

public String getMultiLineCommentEnd()

Returns the end of a multi-line comment.

Returns:

the end string

setBlockStart

public void setBlockStart(String value)

Sets the string that is the start of a block.

Parameters:

value - the string

getBlockStart

public String getBlockStart()

Returns the start of a block.

Returns:

the end string

setBlockEnd

public void setBlockEnd(String value)

Sets the string that is the end of a block.

Parameters:

value - the string

getBlockEnd

public String getBlockEnd()

Returns the end of a block.

Returns:

the end string

setAddMatchingEndBlocks

public void setAddMatchingEndBlocks(boolean value)

Sets whether matching block ends are inserted or not.

Parameters:

value - if true then matching block ends are inserted

getAddMatchingEndBlocks

public boolean getAddMatchingEndBlocks()

Returns whether matching block ends are inserted or not.

Returns:

true if matching block ends are inserted

setUseBlanks

public void setUseBlanks(boolean value)

Sets whether to use blanks instead of tabs.

Parameters:

value - if true then blanks are used instead of tabs

getUseBlanks

public boolean getUseBlanks()

Returns whether blanks are used instead of tabs.

Returns:

true if blanks are used instead of tabs

setBackgroundColor

public void setBackgroundColor(Color value)

Sets the background color.

Parameters:

value - the background color

getBackgroundColor

public Color getBackgroundColor()

Returns the background color.

Returns:

the background color

setMultiLineComment

public void setMultiLineComment(boolean value)

Sets whether to enable multi-line comments.

Parameters:

value - if true then multi-line comments are enabled

getMultiLineComment

public boolean getMultiLineComment()

Returns whether multi-line comments are enabled.

Returns:

true if multi-line comments are enabled

setCaseSensitive

public void setCaseSensitive(boolean value)

Sets whether the keywords are case-sensitive or not.

Parameters:

value - if true then keywords are treated case-sensitive

getCaseSensitive

public boolean getCaseSensitive()

Returns whether blanks are used instead of tabs.

Returns:

true if keywords are case-sensitive