syntaxhighlight

Class SyntaxHighlighter

java.lang.Object

java.awt.Component

java.awt.Container

javax.swing.JComponent

javax.swing.JScrollPane

syntaxhighlight.SyntaxHighlighter

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, Accessible, ScrollPaneConstants

public class SyntaxHighlighter
extends JScrollPane

The syntax highlighter.

Author:

Chan Wai Shing

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.JScrollPane

JScrollPane.AccessibleJScrollPane, JScrollPane.ScrollBar

Nested classes/interfaces inherited from class javax.swing.JComponent

JComponent.AccessibleJComponent

Nested classes/interfaces inherited from class java.awt.Container

Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

Fields

Modifier and Type	Field and Description
protected String	content The content of the syntax highlighter, null if there is no content so far.
protected SyntaxHighlighterPane	highlighter The script text area.
protected JTextComponentRowHeader	highlighterRowHeader The gutter panel (line number).
protected Parser	parser The parser.
protected Theme	theme The theme.

Fields inherited from class javax.swing.JScrollPane

columnHeader, horizontalScrollBar, horizontalScrollBarPolicy, lowerLeft, lowerRight, rowHeader, upperLeft, upperRight, verticalScrollBar, verticalScrollBarPolicy, viewport

Fields inherited from class javax.swing.JComponent

listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

Fields inherited from class java.awt.Component

accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface javax.swing.ScrollPaneConstants

COLUMN_HEADER, HORIZONTAL_SCROLLBAR, HORIZONTAL_SCROLLBAR_ALWAYS, HORIZONTAL_SCROLLBAR_AS_NEEDED, HORIZONTAL_SCROLLBAR_NEVER, HORIZONTAL_SCROLLBAR_POLICY, LOWER_LEADING_CORNER, LOWER_LEFT_CORNER, LOWER_RIGHT_CORNER, LOWER_TRAILING_CORNER, ROW_HEADER, UPPER_LEADING_CORNER, UPPER_LEFT_CORNER, UPPER_RIGHT_CORNER, UPPER_TRAILING_CORNER, VERTICAL_SCROLLBAR, VERTICAL_SCROLLBAR_ALWAYS, VERTICAL_SCROLLBAR_AS_NEEDED, VERTICAL_SCROLLBAR_NEVER, VERTICAL_SCROLLBAR_POLICY, VIEWPORT

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

Constructors

Constructor and Description
SyntaxHighlighter(Parser parser, Theme theme) Constructor.
SyntaxHighlighter(Parser parser, Theme theme, SyntaxHighlighterPane highlighterPane) Constructor.

Method Summary

Modifier and Type	Method and Description
void	addHighlightedLine(int lineNumber) Add highlighted line.
List<Integer>	getHighlightedLineList() Get the list of highlighted lines.
SyntaxHighlighterPane	getHighlighter() Get the SyntaxHighlighterPane (the script text area).
JTextComponentRowHeader	getHighlighterRowHeader() Get the JTextComponentRowHeader, the line number panel.
Theme	getTheme() Get current theme.
boolean	isGutterVisible() Check the visibility of the gutter.
boolean	isHighlightOnMouseOver() Check the status of the mouse-over highlight effect.
protected static String	readFile(File file) Get the string content of a file.
protected void	render() Re-render the script text pane.
void	setContent(File file) Set the content of the syntax highlighter.
void	setContent(String content) Set the content of the syntax highlighter.
void	setFirstLine(int firstLine) Set the line number of the first line.
void	setGutterVisible(boolean visible) Set the visibility of the gutter.
void	setHighlightedLineList(List<Integer> highlightedLineList) Set highlighted lines.
void	setHighlightOnMouseOver(boolean highlightWhenMouseOver) Set turn on the mouse-over highlight effect or not.
void	setTheme(Theme theme) Set the theme.

Methods inherited from class javax.swing.JScrollPane

createHorizontalScrollBar, createVerticalScrollBar, createViewport, getAccessibleContext, getColumnHeader, getCorner, getHorizontalScrollBar, getHorizontalScrollBarPolicy, getRowHeader, getUI, getUIClassID, getVerticalScrollBar, getVerticalScrollBarPolicy, getViewport, getViewportBorder, getViewportBorderBounds, isValidateRoot, isWheelScrollingEnabled, paramString, setColumnHeader, setColumnHeaderView, setComponentOrientation, setCorner, setHorizontalScrollBar, setHorizontalScrollBarPolicy, setLayout, setRowHeader, setRowHeaderView, setUI, setVerticalScrollBar, setVerticalScrollBarPolicy, setViewport, setViewportBorder, setViewportView, setWheelScrollingEnabled, updateUI

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

highlighter

protected SyntaxHighlighterPane highlighter

The script text area.

highlighterRowHeader

protected JTextComponentRowHeader highlighterRowHeader

The gutter panel (line number).

theme

protected Theme theme

The theme.

parser

protected Parser parser

The parser.

content

protected String content

The content of the syntax highlighter, null if there is no content so far.

Constructor Detail

SyntaxHighlighter

public SyntaxHighlighter(Parser parser,
                         Theme theme)

Constructor.

Parameters:

parser - the parser to use

theme - the theme for the syntax highlighter

SyntaxHighlighter

public SyntaxHighlighter(Parser parser,
                         Theme theme,
                         SyntaxHighlighterPane highlighterPane)

Constructor.

Parameters:

parser - the parser to use

theme - the theme for the syntax highlighter

highlighterPane - the script text pane of the syntax highlighter

Method Detail

render

protected void render()

Re-render the script text pane. Invoke this when any change of setting that affect the rendering was made. This will re-parse the content and set the style.

getHighlighter

public SyntaxHighlighterPane getHighlighter()

Get the SyntaxHighlighterPane (the script text area). Note: Normally should not operate on the SyntaxHighlighterPane directly.

Returns:

the SyntaxHighlighterPane

getHighlighterRowHeader

public JTextComponentRowHeader getHighlighterRowHeader()

Get the JTextComponentRowHeader, the line number panel. Note: Normally should not operate on the JTextComponentRowHeader directly.

Returns:

the JTextComponentRowHeader

getTheme

public Theme getTheme()

Get current theme.

Returns:

the current theme

setTheme

public void setTheme(Theme theme)

Set the theme. Setting the theme will not re-parse the content, but will clear and apply the new theme on the script text pane.

Parameters:

theme - the theme

setFirstLine

public void setFirstLine(int firstLine)

Set the line number of the first line. E.g. if set 10, the line number will start count from 10 instead of 1.

Parameters:

firstLine - the line number of the first line

getHighlightedLineList

public List<Integer> getHighlightedLineList()

Get the list of highlighted lines.

Returns:

a copy of the list

setHighlightedLineList

public void setHighlightedLineList(List<Integer> highlightedLineList)

Set highlighted lines. Note that this will clear all previous recorded highlighted lines.

Parameters:

highlightedLineList - the list that contain the highlighted lines, null means highlight no lines

addHighlightedLine

public void addHighlightedLine(int lineNumber)

Add highlighted line.

Parameters:

lineNumber - the line number to highlight

isGutterVisible

public boolean isGutterVisible()

Check the visibility of the gutter.

Returns:

true if the gutter is visible, false if not

setGutterVisible

public void setGutterVisible(boolean visible)

Set the visibility of the gutter.

Parameters:

visible - true to make visible, false to hide it

isHighlightOnMouseOver

public boolean isHighlightOnMouseOver()

Check the status of the mouse-over highlight effect. Default is on.

Returns:

true if turned on, false if turned off

setHighlightOnMouseOver

public void setHighlightOnMouseOver(boolean highlightWhenMouseOver)

Set turn on the mouse-over highlight effect or not. If set true, there will be a highlight effect on the line that the mouse cursor currently is pointing on (on the script text area only, not on the line number panel).

Parameters:

highlightWhenMouseOver - true to turn on, false to turn off

setContent

public void setContent(File file)
                throws IOException

Set the content of the syntax highlighter. Better set it last after setting all other settings.

Parameters:

file - the file to read

Throws:

IOException - error occurred when reading the file

setContent

public void setContent(String content)

Set the content of the syntax highlighter. It is better to set other settings first and set this the last.

Parameters:

content - the content to set, null means no content

readFile

protected static String readFile(File file)
                          throws IOException

Get the string content of a file.

Parameters:

file - the file to retrieve the content from

Returns:

the string content

Throws:

IOException - error occured when reading the file