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java.lang.Objectjava.awt.Component
java.awt.Container
javax.swing.JComponent
javax.swing.text.JTextComponent
javax.swing.JEditorPane
com.lightdev.app.shtm.SyntaxPane
public class SyntaxPane
An editor pane with syntax highlighting for HTML tags.
This is a basic approach to syntax highlighting using regular expressions. It is used to make the plain HTML view of application SimplyHTML more legible by separating tags and attributes from content.
The method doing the actual highlighting work is put into an implementation of the Runnable interface so that it can be called without conflicts.
Can be refined in the way Patterns are set up, i.e. not hard wire pattern setup and a GUI to let the use choose styles for patterns.
Recommended readings:
'Regular Expressions and the JavaTM Programming Language' at
http://developer.java.sun.com/developer/technicalArticles/releases/1.4regex/
and
Presentation slides 'Rich Clients for Web Services' from JavaOne 2002 at
http://servlet.java.sun.com/javaone/resources/content/sf2002/conf/sessions/pdfs/2274.pdf
Nested Class Summary | |
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class |
SyntaxPane.RegExStyle
convenience class associating a pattern with a set of attributes |
Nested classes/interfaces inherited from class javax.swing.JEditorPane |
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javax.swing.JEditorPane.AccessibleJEditorPane, javax.swing.JEditorPane.AccessibleJEditorPaneHTML, javax.swing.JEditorPane.JEditorPaneAccessibleHypertextSupport |
Nested classes/interfaces inherited from class javax.swing.text.JTextComponent |
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javax.swing.text.JTextComponent.AccessibleJTextComponent, javax.swing.text.JTextComponent.DropLocation, javax.swing.text.JTextComponent.KeyBinding |
Nested classes/interfaces inherited from class javax.swing.JComponent |
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javax.swing.JComponent.AccessibleJComponent |
Nested classes/interfaces inherited from class java.awt.Container |
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java.awt.Container.AccessibleAWTContainer |
Nested classes/interfaces inherited from class java.awt.Component |
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java.awt.Component.AccessibleAWTComponent, java.awt.Component.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy |
Field Summary |
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Fields inherited from class javax.swing.JEditorPane |
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HONOR_DISPLAY_PROPERTIES, W3C_LENGTH_UNITS |
Fields inherited from class javax.swing.text.JTextComponent |
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DEFAULT_KEYMAP, FOCUS_ACCELERATOR_KEY |
Fields inherited from class javax.swing.JComponent |
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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 |
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BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT |
Fields inherited from interface java.awt.image.ImageObserver |
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ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH |
Constructor Summary | |
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SyntaxPane()
Creates a new SyntaxPane . |
Method Summary | |
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void |
caretUpdate(javax.swing.event.CaretEvent e)
CaretListener implementation |
boolean |
getScrollableTracksViewportWidth()
overridden from JEditorPane to suppress line wraps |
void |
setMarks(javax.swing.text.StyledDocument sDoc,
int offset,
int len)
apply syntax highlighting to all HTML tags found in the given area of the given document |
void |
setSize(java.awt.Dimension d)
overridden from JEditorPane to suppress line wraps |
void |
setText(java.lang.String t)
overridden to keep caret changes during the initial text load from triggering syntax highlighting repetitively |
Methods inherited from class javax.swing.JEditorPane |
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addHyperlinkListener, createDefaultEditorKit, createEditorKitForContentType, fireHyperlinkUpdate, getAccessibleContext, getContentType, getEditorKit, getEditorKitClassNameForContentType, getEditorKitForContentType, getHyperlinkListeners, getPage, getPreferredSize, getScrollableTracksViewportHeight, getStream, getText, getUIClassID, paramString, read, registerEditorKitForContentType, registerEditorKitForContentType, removeHyperlinkListener, replaceSelection, scrollToReference, setContentType, setEditorKit, setEditorKitForContentType, setPage, setPage |
Methods inherited from class javax.swing.text.JTextComponent |
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addCaretListener, addInputMethodListener, addKeymap, copy, cut, fireCaretUpdate, getActions, getCaret, getCaretColor, getCaretListeners, getCaretPosition, getDisabledTextColor, getDocument, getDragEnabled, getDropLocation, getDropMode, getFocusAccelerator, getHighlighter, getInputMethodRequests, getKeymap, getKeymap, getMargin, getNavigationFilter, getPreferredScrollableViewportSize, getPrintable, getScrollableBlockIncrement, getScrollableUnitIncrement, getSelectedText, getSelectedTextColor, getSelectionColor, getSelectionEnd, getSelectionStart, getText, getToolTipText, getUI, isEditable, loadKeymap, modelToView, moveCaretPosition, paste, print, print, print, processInputMethodEvent, read, removeCaretListener, removeKeymap, removeNotify, select, selectAll, setCaret, setCaretColor, setCaretPosition, setComponentOrientation, setDisabledTextColor, setDocument, setDragEnabled, setDropMode, setEditable, setFocusAccelerator, setHighlighter, setKeymap, setMargin, setNavigationFilter, setSelectedTextColor, setSelectionColor, setSelectionEnd, setSelectionStart, setUI, updateUI, viewToModel, write |
Methods inherited from class javax.swing.JComponent |
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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, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, 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 |
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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, transferFocusDownCycle, validate, validateTree |
Methods inherited from class java.awt.Component |
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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, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public SyntaxPane()
SyntaxPane
.
Method Detail |
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public void setMarks(javax.swing.text.StyledDocument sDoc, int offset, int len)
doc
- the document to apply syntax highlighting tooffset
- the position inside the given document to start to apply syntax highlighting tolen
- the number of characters to apply syntax highlighting topublic boolean getScrollableTracksViewportWidth()
getScrollableTracksViewportWidth
in interface javax.swing.Scrollable
getScrollableTracksViewportWidth
in class javax.swing.JEditorPane
setSize
public void setSize(java.awt.Dimension d)
setSize
in class java.awt.Component
getScrollableTracksViewportWidth
public void caretUpdate(javax.swing.event.CaretEvent e)
updates syntax highlighting for the current line when the caret moves
caretUpdate
in interface javax.swing.event.CaretListener
public void setText(java.lang.String t)
setText
in class javax.swing.JEditorPane
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