gui.highlighting
Class SyntaxHighlighter

java.lang.Object
  extended by java.awt.Component
      extended by java.awt.Container
          extended by javax.swing.JComponent
              extended by javax.swing.text.JTextComponent
                  extended by javax.swing.JEditorPane
                      extended by javax.swing.JTextPane
                          extended by gui.highlighting.SyntaxHighlighter
All Implemented Interfaces:
TokenTypes, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.util.EventListener, javax.accessibility.Accessible, javax.swing.event.DocumentListener, javax.swing.Scrollable

public class SyntaxHighlighter
extends javax.swing.JTextPane
implements javax.swing.event.DocumentListener, TokenTypes

Display text with syntax highlighting. Highlighting is done with full accuracy, using a given language scanner. Large amounts of re-highlighting are done in small bursts to make sure the user interface doesn't freeze.

See Also:
Serialized Form

Nested Class Summary
 
Nested classes/interfaces inherited from class javax.swing.JEditorPane
javax.swing.JEditorPane.AccessibleJEditorPane, javax.swing.JEditorPane.AccessibleJEditorPaneHTML, javax.swing.JEditorPane.JEditorPaneAccessibleHypertextSupport
 
Nested classes/interfaces inherited from class javax.swing.text.JTextComponent
javax.swing.text.JTextComponent.AccessibleJTextComponent, javax.swing.text.JTextComponent.KeyBinding
 
Nested classes/interfaces inherited from class javax.swing.JComponent
javax.swing.JComponent.AccessibleJComponent
 
Nested classes/interfaces inherited from class java.awt.Container
java.awt.Container.AccessibleAWTContainer
 
Nested classes/interfaces inherited from class java.awt.Component
java.awt.Component.AccessibleAWTComponent, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy
 
Field Summary
 
Fields inherited from class javax.swing.JEditorPane
HONOR_DISPLAY_PROPERTIES, W3C_LENGTH_UNITS
 
Fields inherited from class javax.swing.text.JTextComponent
DEFAULT_KEYMAP, FOCUS_ACCELERATOR_KEY
 
Fields inherited from class javax.swing.JComponent
accessibleContext, 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
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
 
Fields inherited from interface gui.highlighting.TokenTypes
BINARY, BRACKET, CHARACTER, COMMENT, END_COMMENT, END_TAG, IDENTIFIER, KEYWORD, KEYWORD2, LITERAL, MID_COMMENT, NUMBER, OPERATOR, PUNCTUATION, QUOTE, SEPARATOR, START_COMMENT, STRING, TAG, typeNames, UNRECOGNIZED, URL, WHITESPACE, WORD
 
Fields inherited from interface java.awt.image.ImageObserver
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH
 
Constructor Summary
SyntaxHighlighter(int height, int width, Scanner scanner)
          Create a graphics component which displays text with syntax highlighting.
 
Method Summary
 void changedUpdate(javax.swing.event.DocumentEvent e)
          Ignore this method.
 void changeFont(java.awt.Font font)
          Change the component's font, and change the size of the component to match.
 void changeStyle(int type, java.awt.Color color)
          Change the style of a particular type of token.
 void changeStyle(int type, java.awt.Color color, int fontStyle)
          Change the style of a particular type of token, including adding bold or italic using a third argument of Font.BOLD or Font.ITALIC or the bitwise union Font.BOLD|Font.ITALIC.
 void insertUpdate(javax.swing.event.DocumentEvent e)
          Ignore this method.
protected  void paintComponent(java.awt.Graphics g)
          Ignore this method.
 void read(java.io.Reader in, java.lang.Object desc)
          Read new text into the component from a Reader.
 void removeUpdate(javax.swing.event.DocumentEvent e)
          Ignore this method.
 
Methods inherited from class javax.swing.JTextPane
addStyle, createDefaultEditorKit, getCharacterAttributes, getInputAttributes, getLogicalStyle, getParagraphAttributes, getStyle, getStyledDocument, getStyledEditorKit, getUIClassID, insertComponent, insertIcon, paramString, removeStyle, replaceSelection, setCharacterAttributes, setDocument, setEditorKit, setLogicalStyle, setParagraphAttributes, setStyledDocument
 
Methods inherited from class javax.swing.JEditorPane
addHyperlinkListener, createEditorKitForContentType, fireHyperlinkUpdate, getAccessibleContext, getContentType, getEditorKit, getEditorKitClassNameForContentType, getEditorKitForContentType, getHyperlinkListeners, getPage, getPreferredSize, getScrollableTracksViewportHeight, getScrollableTracksViewportWidth, getStream, getText, read, registerEditorKitForContentType, registerEditorKitForContentType, removeHyperlinkListener, scrollToReference, setContentType, setEditorKitForContentType, setPage, setPage, setText
 
Methods inherited from class javax.swing.text.JTextComponent
addCaretListener, addInputMethodListener, addKeymap, copy, cut, fireCaretUpdate, getActions, getCaret, getCaretColor, getCaretListeners, getCaretPosition, getDisabledTextColor, getDocument, getDragEnabled, getFocusAccelerator, getHighlighter, getInputMethodRequests, getKeymap, getKeymap, getMargin, getNavigationFilter, getPreferredScrollableViewportSize, getScrollableBlockIncrement, getScrollableUnitIncrement, getSelectedText, getSelectedTextColor, getSelectionColor, getSelectionEnd, getSelectionStart, getText, getToolTipText, getUI, isEditable, loadKeymap, modelToView, moveCaretPosition, paste, processInputMethodEvent, removeCaretListener, removeKeymap, removeNotify, select, selectAll, setCaret, setCaretColor, setCaretPosition, setComponentOrientation, setDisabledTextColor, setDragEnabled, setEditable, setFocusAccelerator, setHighlighter, setKeymap, setMargin, setNavigationFilter, setSelectedTextColor, setSelectionColor, setSelectionEnd, setSelectionStart, setUI, updateUI, viewToModel, write
 
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, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, 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, setLayout, transferFocusBackward, transferFocusDownCycle, validate, validateTree
 
Methods inherited from class java.awt.Component
action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, 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, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, 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, 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, transferFocusUpCycle
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

SyntaxHighlighter

public SyntaxHighlighter(int height,
                         int width,
                         Scanner scanner)
Create a graphics component which displays text with syntax highlighting. Provide a width and height, in characters, and a language scanner.

Method Detail

changeFont

public void changeFont(java.awt.Font font)
Change the component's font, and change the size of the component to match.


read

public void read(java.io.Reader in,
                 java.lang.Object desc)
          throws java.io.IOException
Read new text into the component from a Reader. Overrides read in JTextComponent in order to highlight the new text.

Overrides:
read in class javax.swing.text.JTextComponent
Throws:
java.io.IOException

changeStyle

public void changeStyle(int type,
                        java.awt.Color color)
Change the style of a particular type of token.


changeStyle

public void changeStyle(int type,
                        java.awt.Color color,
                        int fontStyle)
Change the style of a particular type of token, including adding bold or italic using a third argument of Font.BOLD or Font.ITALIC or the bitwise union Font.BOLD|Font.ITALIC.


insertUpdate

public void insertUpdate(javax.swing.event.DocumentEvent e)
Ignore this method. Responds to the underlying document changes by re-highlighting.

Specified by:
insertUpdate in interface javax.swing.event.DocumentListener

removeUpdate

public void removeUpdate(javax.swing.event.DocumentEvent e)
Ignore this method. Responds to the underlying document changes by re-highlighting.

Specified by:
removeUpdate in interface javax.swing.event.DocumentListener

changedUpdate

public void changedUpdate(javax.swing.event.DocumentEvent e)
Ignore this method. Responds to the underlying document changes by re-highlighting.

Specified by:
changedUpdate in interface javax.swing.event.DocumentListener

paintComponent

protected void paintComponent(java.awt.Graphics g)
Ignore this method. Carries out a small amount of re-highlighting for each call to repaint.

Overrides:
paintComponent in class javax.swing.JComponent