org.fife.ui.rsyntaxtextarea
Class ErrorStrip

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              org.fife.ui.rsyntaxtextarea.ErrorStrip

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable

public class ErrorStrip
extends JComponent

A component to sit alongside an RSyntaxTextArea that displays colored markers for locations of interest (parser errors, marked occurrences, etc.).

ErrorStrips display ParserNotices from Parsers. Currently, the only way to get lines flagged in this component is to register a Parser on an RSyntaxTextArea and return ParserNotices for each line to display an icon for. The severity of each notice must be at least the threshold set by setLevelThreshold(int) to be displayed in this error strip. The default threshold is ParserNotice.WARNING.

An ErrorStrip can be added to a UI like so:

 textArea = createTextArea();
 textArea.addParser(new MyParser(textArea)); // Identifies lines to display
 scrollPane = new RTextScrollPane(textArea, true);
 ErrorStrip es = new ErrorStrip(textArea);
 JPanel temp = new JPanel(new BorderLayout());
 temp.add(scrollPane);
 temp.add(es, BorderLayout.LINE_END);
 

Version:

0.5

Author:

Robert Futrell

See Also:

Serialized Form

Nested Class Summary

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 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 java.awt.image.ImageObserver

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

Constructor Summary

ErrorStrip(RSyntaxTextArea textArea)
Constructor.

Method Summary

void	addNotify() Overridden so we only start listening for parser notices when this component (and presumably the text area) are visible.
void	doLayout() Manually manages layout since this component uses no layout manager.
Color	getCaretMarkerColor() returns the color to use when painting the caret marker.
boolean	getFollowCaret() Returns whether the caret's position should be drawn.
int	getLevelThreshold() Returns the minimum severity a parser notice must be for it to be displayed in this error strip.
Dimension	getPreferredSize()
boolean	getShowMarkedOccurrences() Returns whether marked occurrences are shown in this error strip.
String	getToolTipText(MouseEvent e)
protected void	paintComponent(Graphics g) Overridden to (possibly) draw the caret's position.
void	removeNotify()
void	setCaretMarkerColor(Color color) Sets the color to use when painting the caret marker.
void	setFollowCaret(boolean follow) Toggles whether the caret's current location should be drawn.
void	setLevelThreshold(int level) Sets the minimum severity a parser notice must be for it to be displayed in this error strip.
void	setShowMarkedOccurrences(boolean show) Sets whether marked occurrences are shown in this error strip.

Methods inherited from class javax.swing.JComponent

addAncestorListener, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getAccessibleContext, 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, getUIClassID, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintImmediately, paintImmediately, paramString, 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, updateUI

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, 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, 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, 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, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, 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

ErrorStrip

public ErrorStrip(RSyntaxTextArea textArea)

Constructor.

Parameters:

textArea - The text area we are examining.

Method Detail

addNotify

public void addNotify()

Overridden so we only start listening for parser notices when this component (and presumably the text area) are visible.

Overrides:

addNotify in class JComponent

doLayout

public void doLayout()

Manually manages layout since this component uses no layout manager.

Overrides:

doLayout in class Container

getCaretMarkerColor

public Color getCaretMarkerColor()

returns the color to use when painting the caret marker.

Returns:

The caret marker color.

See Also:

setCaretMarkerColor(Color)

getFollowCaret

public boolean getFollowCaret()

Returns whether the caret's position should be drawn.

Returns:

Whether the caret's position should be drawn.

See Also:

setFollowCaret(boolean)

getPreferredSize

public Dimension getPreferredSize()

Overrides:

getPreferredSize in class JComponent

getLevelThreshold

public int getLevelThreshold()

Returns the minimum severity a parser notice must be for it to be displayed in this error strip. This will be one of the constants defined in the ParserNotice class.

Returns:

The minimum severity.

See Also:

setLevelThreshold(int)

getShowMarkedOccurrences

public boolean getShowMarkedOccurrences()

Returns whether marked occurrences are shown in this error strip.

Returns:

Whether marked occurrences are shown.

See Also:

setShowMarkedOccurrences(boolean)

getToolTipText

public String getToolTipText(MouseEvent e)

Overrides:

getToolTipText in class JComponent

paintComponent

protected void paintComponent(Graphics g)

Overridden to (possibly) draw the caret's position.

Overrides:

paintComponent in class JComponent

Parameters:

g - The graphics context.

removeNotify

public void removeNotify()

Overrides:

removeNotify in class JComponent

setCaretMarkerColor

public void setCaretMarkerColor(Color color)

Sets the color to use when painting the caret marker.

Parameters:

color - The new caret marker color.

See Also:

getCaretMarkerColor()

setFollowCaret

public void setFollowCaret(boolean follow)

Toggles whether the caret's current location should be drawn.

Parameters:

follow - Whether the caret's current location should be followed.

See Also:

getFollowCaret()

setLevelThreshold

public void setLevelThreshold(int level)

Sets the minimum severity a parser notice must be for it to be displayed in this error strip. This should be one of the constants defined in the ParserNotice class. The default value is ParserNotice.WARNING.

Parameters:

level - The new severity threshold.

See Also:

getLevelThreshold(), ParserNotice

setShowMarkedOccurrences

public void setShowMarkedOccurrences(boolean show)

Sets whether marked occurrences are shown in this error strip.

Parameters:

show - Whether to show marked occurrences.

See Also:

getShowMarkedOccurrences()